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An Airy beam is a non-diffractive wave which propagates along a ballistic trajectory without any external force. Although it is impossible to implement ideal Airy beams because they carry infinite power, so-called finite Airy beams can be achieved by tailoring infinite side lobes with an aperture function and they have similar propagating characteristics with those of ideal Airy beams. The finite Airy beam can be optically generated by several ways: the optical Fourier transform system with imposing cubic phase to a broad Gaussian beam, nonlinear generation of Airy beams, curved plasma channel generation, and electron beam generation. In this presentation, a holographic generation of the finite Airy beams will be discussed. The finite Airy beams can be generated in virtue of holographic technique by reading a hologram which is recorded by the interference between a finite Airy beam generated by the optical Fourier transform and a reference plane wave. Moreover, this method can exploit the ...
An n-valued switch with n≧2, with an input enabled to receive a signal in one of n states, an output enabled to provide a signal in one of at least 2 states, under control of a control signal having one of at least 2 states is disclosed. Signals are instances of a physical phenomenon, an instance representing a state. N-valued inverters are also disclosed. Different types of signals are disclosed, including optical signals with different wavelengths, electrical signals with different frequencies and signals represented by a presence of a material. A kit including an n-valued switch is also disclosed.
Read it.. Quite frankly, the concept "Anglican Dominican nun" does not compute.. This entry was posted on Friday, May 29th, 2009 at 06:39 and is filed under Think about it.. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed. ...
The download Classical and Quantum Dynamics: from Classical Paths reveals a detailed JSTOR of character socialism aggregates and Implications, and is Converted ideas of human separation methods. The epitomized philosophy proved also revised on this model. Download Handbook of Flavor Characterization: available, Chemical and by Kathryn D. This human rate work the developing disorders and Continued diseases transmitted to become out the probability of space variable, techniques and good edition edition on argument and fluorescence block.
In this PhD thesis, we construct numerical methods to solve problems described by advectiondiffusion and convective Cahn-Hilliard equations. The advection-diffusion equation models a variety of physical phenomena in fluid dynamics, heat transfer and mass transfer or alternatively describing a stochastically-changing system. The convective Cahn-Hilliard equation is an equation of mathematical physics which describes several physical phenomena such as spinodal decomposition of phase separating systems in the presence of an external field and phase transition in binary liquid mixtures (Golovin et al., 2001; Podolny et al., 2005). In chapter 1, we define some concepts that are required to study some properties of numerical methods. In chapter 2, three numerical methods have been used to solve two problems described by 1D advection-diffusion equation with specified initial and boundary conditions. The methods used are the third order upwind scheme (Dehghan, 2005), fourth order scheme (Dehghan, 2005) ...
Kvitova eliminated Spanish third seed and two-time Slam victor Garbine Muguruza 7-6 (7/3), 6-3 while Williams beat 35th-ranked Spaniard Carla Suarez Navarro 6-3, 3-6, 6-1. On the recommendation of her doctor, Sharapova consumed a drug called "meldonium".. This was the third three-set match for Sharapova in the tournament and it appeared to catch up with her as she finished with 51 unforced errors - 37 more than her opponent. "She played unbelievable throughout the first and second set and I just kept fighting, running every ball and just stayed there".. Sharapova is used to a hostile locker room, and fellow players are pillorying the 2006 US Open victor, too.. "I think she can lose to anyone now". "You cant replicate that anywhere, especially at a Grand Slam".. Kenin, like Sharapova, was born in Russia and moved to the United States with her family as a child, and the pair had exchanged words in Russian in the locker room. "So I know that so I am going to try to take it". Venus could return to ...
Simona Halep served for the match today at 5-4 in the third set. She and her opponent, 4th seed Jelena Jankovic, played an error-filled mess of a match that Halep might have won had she been at a higher level of fitness and prepared to face the intense heat. But credit to JJ: When it came down to the end, something snapped into place, and she forced consecutive errors from her exhausted opponent to (finally) win 6-4, 4-6, 7-5. Halep was up 5-1 in the second set, and almost ran away with it, as Jankovic made a string of unforced errors. (During the third set, my mind wandered to that Australian Open first round in which Jankovic saved herself at the last minute from an upset by Tamira Paszek ...
Wimbledon found themselves 3-0 down after just 17 minutes with Sam Lawford opening the scoring and a Greg Cundle double. Though the Dons did stem the flow and created a few opportunities of their own in the first-half, unforced errors from Wimbledon gave Gillingham chances to add to their tally.. Without being anywhere near their best, Wimbledon threatened to make a game of it. Kaja was foiled in a one-on-one by Gillingham goalkeeper Henry Newcombe, who also denied Agyei after good work by Alfie Egan. minute.thIt was a much brighter start from Wimbledon after half-time with Dan Agyei and Egli Kaja both going close to reducing the arrears. There was not too long to wait though for Wimbledon to register and Agyei (pictured) did get one back in the 56. Wimbledon hopes of earning a draw receded 21 minutes from time though when Harry Stannard made it 4-1 from a free-kick. It got worse for the hosts when the excellent Lawford added a fifth for Gillingham.. And Kaja added a third for Wimbledon after ...
Multivariable functions permeate physics, mathematics, and other sciences. Understanding how quantities in multivariable relationships change together - or co-vary - is important for studying physical systems. In this project, we asked junior-level physics majors to describe the covariation of quantities in a multivariable context given a 2D graph. We identified three meta-categories which describe the elements of reasoning students used to make judgements about how quantities covaried: (1) geometric - referencing the features of the provided graph, (2) physical - using physical knowledge about the gas, (3) analytical - analyzing the system abstractly. Students whose problem solving and reasoning fell in the analytical category tended to give the most sophisticated answers. To help students reason productively about covariation in multivariable contexts, we developed an instructional activity where students examine how quantities change using both a 3D surface model and a contour map ...
P. Didier, L. Guidoni, and E. Weiss, "Ultrafast Excited-state Dynamics of Genetic Fusions: The Green Fluorescent Protein as a Folding Reporter," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper QMH1 ...
Advances in Mathematical Physics is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles that seek to understand the mathematical basis of physical phenomena, and solve problems in physics via mathematical approaches.
Advances in Mathematical Physics is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles that seek to understand the mathematical basis of physical phenomena, and solve problems in physics via mathematical approaches.
205-. ". . . but also say that there isnt actually any disequilibrium that the planet is recovering from - therefore any temp increases are not "natural".". Close! No, there is no default-but there can be a disequilibrium. (In fact, it is calculated that there is disequilibrium right now of .5-1 Watts per square meter, caused by greenhouse gases and in turn causing the warming observed today.). The logical difference is that the first implies some automatic, internal mechanism which acts to maintain a set temperature-rather as mammalian physiology maintains a more-or-less constant body temperature, for instance. There is something a bit like this, since a warmer object radiates more effectively than a cooler one, according to the Stefan-Boltzmann law. Thus, if the Earth warms up due to an increase in the intensity of solar radiation say, it will radiate more, increasing the outgoing energy until it matches the incoming energy once again. So this radiational matching is automatic-but note ...
Hansen et al. 2013 … A cumulative industrial-era (1750-?) limit of ~500 GtC fossil fuel emissions and 100 GtC storage in the biosphere and soil would keep climate close to the Holocene range to which humanity and other species are adapted. Cumulative emissions of ~1000 GtC, sometimes associated with 2°C global warming, would spur "slow" feedbacks and eventual warming of 3-4°C with disastrous consequences. HOWEVER the path actually leads to Cumulative emissions of ~2,000 GtC would indicate a minimum GMST of +4°C before 2100 on top of the ~2C already in the system …. with even further global warming to 6-8°C quite possible over time.. All things being equal, if this rate of fossil fuel energy use continues then +4°C is all but a certainty by 2100. This is ignoring any and ALL Climate Feedbacks, such as from the loss of ice, methane in the arctic, and other major tipping points in the climate system that science as yet cannot predict very well.. We also know the historical 365 GTC raised ...
Transparency is an important part of community. I have never felt comfortable sharing my pain and sorrows and heartache with the church I grew up at. Too many people have witnessed me deal with pain and have thought "she is dealing so well." I have dealt with grief and extreme/intense pain before, but nothing like this. On Sunday night, while speaking at my church, I was overcome with the need to tell them that I was broken. That I was going to be completely honest and open with them about my experiences in Haiti, and that probably would make them uncomfortable. Total, brutal honesty is not a common thing in church... which seems ironic to me. Church should be the place where we are most open and broken in front of people. So I was. And the outpouring of prayers, tears and support from everyone in the sanctuary was overwhelming. They even cancelled the business meeting, which might have been the first time in Baptist history ...
Jet fuel is used in high-performance military flight vehicles for cooling purposes before combustion. It is desirable to investigate the influence of the flow and heating conditions on fuel heat transfer and thermal stability to develop viable mitigation strategies. Computational fluid dynamics (CFD) simulations and experiments can provide the understanding of the fuel physical phenomena which involves the fluid dynamics, heat transfer and chemical reactions. Three distinct topics are studied: The first topic considers the effect of flow geometry on fuel oxidation and deposition. Experiments and CFD modeling were performed for fuels flowing through heated tubes which have either a sudden expansion or contraction. It was found that the peak deposition occurs near the maximum oxidation rate and excess deposition is formed near the step. This study provides information for the fuel system designer which can help minimize surface deposition due to fuel thermal oxidation. In the second area of study, ...
Well, I cant argue with your beliefs, but I reject them. Application of the calculus to the problems you mention has been quite successful. You assume that atoms behave independently regardless of circumstances. Your assumption that the calculus can deal only with mathematically continuous systems is also faulty. You also have not provided any examples, according to your hypothesis, that application of the calculus has provided faulty results when used to analyze physical phenomena ...
The Large Hadron Collider has completed many successful months of colliding protons (hydrogen ions) at record-breaking energies and now begins four weeks of colliding much more massive lead ions, giving access to different physical phenomena. Berkeley Lab hosts U.S. participation in the ALICE experiment, designed specifically to study the heavy-ion collisions that give rise to a unique phase of matter, the quark-gluon plasma. Berkeley Lab is also a major participant in the ATLAS experiment, one of the other LHC experiments that will study lead-lead collisions. ...
The core activity of the Institute for Biologically inspired materials is to develop nanotechnology (fabrication and physical phenomena of materials on the nanoscale) and molecular self assembly tools for application to biological and medical problems and to create novel "smart" materials and structures inspired by assembly principles studied in biological systems. These goals cannot be achieved without developing our current fundamental understanding of the physics and chemistry of complex nanoscale systems.. The focus application areas for this research are in:. *drug delivery. *"smart" tissue engineering scaffolds. *filtration. *biosensing. In all areas we have a particular interest in the creation of nanoscale "building blocks" with asymmetric geometry, physical and chemical interactions, based on synthetic or biological units. Such building blocks exhibiting weak interactions assembled into confined fluids and gels are hallmarks of biology and life, but currently almost non-existent as ...
All biological processes are governed by principles of physics that dictate the pathophysiology and even the treatment of congenital heart diseases. In this review, basic concepts such as flow, pressure, resistance, and velocity are introduced, followed by more complex laws that describe the relationship between these variables and the disease processes. Finally, physical phenomena such as turbulence, steal and runoff phenomenon, and energy loss are discussed. By application of these principles, one can accurately quantify modifications undertaken to treat diseases, for example, the size of a patch that augments a vessel and the angle of an anastomosis to allow a certain flow ...
It is just as difficult to regard the emission literally as a proton beam as it is to imagine it being a laser. Lasers and proton beams are very different physical phenomena in any case. The true nature of the superlaser remains an undescribed piece of superphysics, and only its incidental effects have so far been named. Careful observation of the firing process can yield indications about the underlying physical mechanism: When the eight tributary beams meet at the weapons focal point they do not pass through each other as genuine light beams would. Instead they come to a halt and energy apparently builds at that point until a critical moment when the final outbound beam is spontaneously released. Whatever force is involved in the superlaser, it cannot be mere electromagnetism because non-disruptive superposition of beams is ruled out by the focal point behavior. The direction of the composite beam is a simple vector sum of the directions of the eight tributaries. This suggests that no ...
Study of physical phenomena by means of mathematical models is common in various branches of engineering and science. In biomechanics, modelling often involves studying human motion by treating the body as a mechanical system made of interconnected rigid links. Robotics deals with similar cases as robots are often designed to imitate human behavior. Modelling human movements is a complicated task and, therefore, requires several simplifications and assumptions. Available computational resources often dictate the nature and the complexity of the models. In spite of all these factors, several meaningful results are still obtained from the simulations.. One common problem form encountered in real life is the movement between known initial and final states in a pre-specified time. This presents a problem of dynamic redundancy as several different trajectories are possible to achieve the target state. Movements are mathematically described by differential equations. So modelling a movement involves ...
Heterogeneous interfaces between two dissimilar materials are an essential building block for modern semiconductor devices. The 2-dimensional (2D) van der Waals (vdW) materials and their heterostructures provide a new opportunity to realize atomically sharp interfaces in the ultimate quantum limit for the electronic and optoelectronic processes. By assembling atomic layers of vdW materials, such as hexa boronitride, transition metal chalcogenide and graphene, we can construct atomically thin novel quantum structures. We demonstrate the enhanced electronic and optoelectronic performances in the vdW heterostructures, suggesting that these a few atom thick interfaces may provide a fundamental platform to realize novel physical phenomena. In this presentation, we will discuss transmission electron microscopy (TEM) investigation of the microstructures of 2-D based heterostructures. Microstructural properties of the heterostructures caused by the interlayer interaction were studied by TEM-based ...
novel physical phenomena, not allowed for in current physical theories, may be utilized to transcend those theoretical constraints[1] that in our current understanding limit the information processing density that can be attained in a given lump of matter. But we can with much greater confidence establish lower bounds on posthuman computation, by assuming only mechanisms that are already understood. For example, Eric Drexler has outlined a design for a system the size of a sugar cube (excluding cooling and power supply) that would perform 10^21 instructions per second (Drexler 1992). Another author gives a rough performance estimate of 10^42 operations per second for a computer with a mass on order of large planet (Bradbury 2000).[2]. The amount of computing power needed to emulate a human mind can likewise be roughly estimated. One estimate, based on how computationally expensive it is to replicate the functionality of a piece of nervous tissue that we already understand (contrast enhancement ...
Burnup limitations are normally set to limit stresses in the fuel assembly components. The defined limits provide guidance to the fuel designer to minimize fuel failure during steady sate operation, and also prevent against some thermal and mechanical phenomena that could occur during overpower transients. In particular, a LHGR limit value is set to take into account physical phenomena that could lead to pellet-cladding interaction. This limit value directly relates to a PCI limit, which may be set based on experimental ramp tests. Thus, to avoid violating the PCI limit, fuel conditioning procedures are still required for both barrier and non-barrier fuel. Simulation of the power ramp procedures to be performed by the reactor operator during startup or power increase maneuvers is advisable as a preventive measure of possible overpower consequences on the fuel thermomechanical behavior. In this paper, the thermomechanical behavior of two different kinds of BWR fuel rods is analyzed for fuel ...
Given this situation, therefore, most traits tune themselves to intermediate values, because extreme values are typically extremely ill suited in some environments one is likely to face. And, all this is further constrained by the possible organization of the brain: for example, it is completely possible that the brain is composed of two parts, one that can analyze and model its environment in terms of an "open-loop" system controlled by impersonal physical laws which constrain and guide change, and a social system that can alternately assign agency (or "will") to parts of the environment. If this simple separation of thought patterns is an useful approximation, the division of resources between the two will affect a lot of behavior: a lot of resources devoted to the physical system will make one unable to understand complicated social dynamics; whereas too high a reliance on the social system might make one unable to understand that physical phenomenon often do not have wills and desires. Both ...
Given this situation, therefore, most traits tune themselves to intermediate values, because extreme values are typically extremely ill suited in some environments one is likely to face. And, all this is further constrained by the possible organization of the brain: for example, it is completely possible that the brain is composed of two parts, one that can analyze and model its environment in terms of an "open-loop" system controlled by impersonal physical laws which constrain and guide change, and a social system that can alternately assign agency (or "will") to parts of the environment. If this simple separation of thought patterns is an useful approximation, the division of resources between the two will affect a lot of behavior: a lot of resources devoted to the physical system will make one unable to understand complicated social dynamics; whereas too high a reliance on the social system might make one unable to understand that physical phenomenon often do not have wills and desires. Both ...
The Society for Experimental Mechanics is composed of international members from academia, government, and industry who are committed to interdisciplinary application, research and development, education, and active promotion of experimental methods to: (a) increase the knowledge of physical phenomena; (b) further the understanding of the behavior of materials, structures and systems; and (c) provide the necessary physical basis and verification for analytical and computational approaches to the development of engineering solutions.. Click here to visit website ...
Vibrational medicine attempts to kickshaw race next to a variety of forms of uncontaminated enthusiasm. The urging of alternative medical systems specified as Chinese, Ayervedic or Tibetan medical science have led in cog to the movement of machines that can image energy. Heat punch imagers are an standard part of our practical application. We readily adopt imaging heat, even yet we cant see it, because boil is something we can undergo through with touch. With the energy body it is not so unequivocal. Very few of us have full-fledged this for ourselves and there is allegedly no centripetal backup to bowman us it is in attendance.. Experiments in electro-acupuncture and Kirlian pictorial representation have led to an perkiness map of the unit the same to that shown in old school Chinese drug. The time of day group is seen as an interface relating the fleshly article and the spirit organic structure. Applications of reverberant physical phenomenon to the hour set of laws forward healthful in ...
(PhysOrg.com) -- Physicists are divided on whether string theory is a viable theory of everything, but many agree that it offers a new way to look at physical phenomena that have otherwise proven difficult to describe. In ...
This May sees the next talk in the monthly Water Colloquium series organised by WIRC @ Bath exploring the breadth of water research being undertaken at the University of Bath and beyond.. Title: Linking chemical-soil interactions to pollutant fate and transport from soil to water. Speaker: Dr Brian J. Reid, Reader, School of Environmental Sciences, University of East Anglia. When: Thursday 18th May 2017 at 1.15pm. Where: Room 2.1, 6 East, University of Bath (Location and maps). Abstract: The seminar will begin by introducing the fundamentals of how chemical and physical phenomena underpin soil-pollutants interactions. From this perspective the implications of these interactions for pollutant bioavailability and transport will be developed. I will introduce seminal research relating to the application of cyclodextrins as bioavailability mimetics (and standardisation with the ISO). I will provide insights into the interplay between pollutant exposure, pollutant bioavailability and microbial ...
This article illuminates the drivers of exponential improvements in performance and cost and explains why some technologies experience more rapid improvements than others. It shows how exponential improvements in performance and cost are largely driven by two mechanisms: creating materials to better exploit their physical phenomena; and geometric scaling. Improvements in some technologies are directly experienced through these two mechanisms, while improvements in higher-level systems are indirectly experienced through improvements in specific components. Understanding these drivers can help us better recognize when new technologies might become economically feasible and thus create appropriate policies for promoting improvements. © 2013 by The Regents of the University of California. All rights reserved ...
These data were obtained by presenting speech test material and noise in the sound field. Each data point represents the difference scores averaged across all subjects in one study in relation to the three-frequency average thresholds of the subjects.. Binaural word and sentence recognition in quiet was similar to monaural performance in three studies, as shown by the data points on the zero line. All of the other studies revealed superior binaural speech recognition over monaural performance, especially when speech and noise were spatially separated. The benefits can be explained in terms of the combined effects of head-shadow and binaural redundancy. Since head-shadow is a physical phenomenon, it will occur whenever sounds are audible in both ears and each ear can extract information from the signal it receives, whether through electrical or acoustic stimulation of the auditory system.. A recent study measured the effects of binaural redundancy while controlling for head-shadow by presenting ...
One of the strangest aspects of our understanding of evolutionary biology is the tendency to conflate a sprawling protean dynamic into a sliver of a phenomenon. Most prominently, evolution is often reduced to a process driven by natural selection, with an emphasis on the natural. When people think of populations evolving they imagine them being buffeted by inclement weather, meteors, or smooth geological shifts. These are all natural, physical phenomena, and they all apply potential selection pressures. But this is not the same as evolution; its just one part. A more subtle aspect of evolution is that much of the selection is due to competition between living organisms, not their relationship to exterior environmental conditions.. The question of what drives evolution is a longstanding one. Stephen Jay Gould famously emphasized of the role of randomness, while Richard Dawkins and others prioritize the shaping power of natural selection. More finely still, there is the distinction between those ...
[email protected] In contrast to many physical phenomena such as a swinging pendulum, chemical reactions must approach equilibrium monotonically. However, far from equilibrium, concentrations of chemical species can oscillate during the time course of the reaction. This interesting branch of kinetics is exemplified by the Belousov-Zhabotinskii reaction. After an induction period, the color of the solution changes between clear and yellow with a period of two minutes for several hours. In this article, a general, convenient chemical kinetics solver is employed in conjunction with complex kinetic diagrams to understand the coupling of chemical reactions that yield chemical oscillations. ...
Many scientists share the opinion that the form of biological objects influences their growth and replication. This concept has been suggested early by Aristotle and has many supporters, among which D Arcy Thompson Wentworth developed it in depth and advanced to other physical phenomena beside the growth. This opinion have had many followers in the previous decades. However, no complete and really convincing studies have been done, and no quantitative models have been developed to firmly support this hypothesis XE growth hypothesis . As a result of such development, and given the impressive achievements in the molecular biology in the last decades, this camp weakened and eventually abandoned their trenches. In the recent decades, the staggering successes of genetics, cellular and molecular biology discovered so many particular biochemical mechanisms directly or meditatively affecting the growth and replication of cells and organisms, that the overall perception of this complex phenomenon ...
This course has two primary aims. The first is to help develop an appreciation and a significant level of skill in using a battery of molecular spectroscopic techniques to determine molecular structures. The second aim is to provide a thorough understanding of the physical phenomena on which various techniques are based and a basic insight into the construction and operation of the equipment used in each spectroscopic technique. A practical component will give hands on experience in 1D and 2D NMR techniques and training in the use of NMR spectrometers available to students during masters research projects ...
The main purpose of this narrow field of education is to develop an understanding of the fundamental properties of the universe and the laws which govern its behaviour and to assess and validate physical phenomena. ...
Given its impact on our fight/flight response, and its generation of physical phenomena, such as sweating and tremor; its easy to understand why excesses in norepinephrine could trigger anxiety and panic.
How Liposelection Comes Out? I will clarify you how VASER Hi-Def technology practices Liposelection after explaining you 2 physical phenomena looking completely distinct from each other. On a sunny day, one person wears white t-shirt, and the other wears black t-shirt. Which one of them feels that the weather is hotter? Probably, nearly everyone will […]... ...
Two key physical phenomena take place at the surfaces of materials: catalysis and wetting. A catalyst enhances the rate of chemical reactions; wetting refers to how liquids spread across a surface. Non-wetting surfaces promote chemical reaction rates, new research confirms ...
Dithiol-substituted Zn-phthalocyanine derivatives (TAZnPc1, TAZnPc2 and TAZnPc3) were synthesized and functionalized on nanometals (Au and Ag) and nanometal-TiO2 hybrids were harnessed to cover the visible region of the absorption spectrum. Photophysical studies reveal that both H- and J-aggregation were pre
Shelley Atwoods brooch is a festive combination of gold pods, gilded needles, and red leaves. Alien meets suburban Texas but in a good, friendly way.. I hadnt checked on Shelleys work lately and it felt like going home for the holidays. Her colors are muted and slightly dark and her shapes change. The clay leads and she follows in a curious, unforced way.. Shelley created a slew of earrings for her gallerys ArtWalk. Her UK fan, Carrie Harvey pointed out what Id been missing. Shelley demos on Facebook and shows her work on Flickr.. ...
2] B. C. Sakiadis, Boundary layer behavior on continuous solid surfaces: I. Boundary layer equations for two-dimensional and axisymmetric flow, AIChE Journal 7, 26-28 (1961); II. The boundary layer on a continuous flat surface, AIChE Journal 7, 221-225 (1961); III. The boundary layer on a continuous cylindrical surface, AIChE Journal 7, 467-472 (1961 ...
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We present an experimental and theoretical study of passively mode-locked fiber soliton lasers. Our theoretical analysis based on perturbation theory describes the soliton interactions that occur when pulse bunches form. Our results indicate that the nonsoliton component emitted by the propagating solitons causes small changes of the central frequency of individual solitons, and the strength and the sign of this interaction between the soliton and dispersive waves depend on their mutual phase as well as on the soliton position within the soliton bunch. For a certain phase difference between the solitons and the nonsoliton component the interaction force becomes repulsive for all solitons within a soliton bunch and results in an almost uniform distribution of the pulses inside the laser cavity. The pulses are then locked into their temporal positions by acoustic effects. We also demonstrate that the laser performance could be further improved by the use of a multiple-quantum-well saturable ...
Experimental evidence is presented that the intrinsic viscosity of solutions of mixed proteins obeys the additive equation. See PDF for Equation.. The datum serves to characterize the system, and combined with other analytical techniques and fractionation procedures, enables one to analyze and characterize subfractions. The plasmas and sera of clinically "normal" individuals give intrinsic viscosity values agreeing with calculated values. The intrinsic viscosity values for pathological plasmas and sera in all cases are greater than normal and reflect the augmented levels of those proteins fibrinogen, α2-globulins, and γ-globulins occurring in the pathological state. The method is readily adaptable to routine clinical use and furnishes a measure of the departure from normal of protein levels in serum and plasma.. ...
It is a commonplace in the history of ideas that one of the few medieval philosophical contributions preserved in modern philosophical thought is the idea that mental phenomena are distinguished from physical phenomena by their intentionality: their intrinsic directedness toward some object. Nevertheless, medieval philosophers routinely described ordinary physical phenomena, such as reflections in mirrors or sounds in the air, as exhibiting intentionality, while they described what modern philosophers would take to be typically mental phenomena, such as sensation and imagination, as ordinary physical processes. Still, medieval philosophers would regard all acts of cognition as characterized by intentionality, on account of which all these acts are some sort of representations of their intended objects. The essays in this volume explore the intricacies and varieties of the conceptual relationships among intentionality, cognition, and mental representation as conceived by some of the greatest medieval
Everyone knows that some of the things the gauges on the dashboard of a car warn the driver about are its content of fuel, oil, and anti-freeze. But how do they do it? Each device is essentially a sensory transducer with a mechanism that enables it to sense a physical phenomenon and convert it into useful information. The body too uses devices to detect physical phenomena so it knows what is going on outside and inside. These are likewise sensory transducers. The sensation of balance comes from the vestibular apparatus in the ears that tells the body its position relative to motion and the force of gravity and also helps to stabilize the retinal image. Common sense teaches that without this special sense our earliest ancestors could never have survived. Evolutionary biologists claim that similarities in the vestibular mechanisms in different life forms indicates that it was easy for chance and the laws of nature alone to bring about the sense of balance. But as with the development of various ...
Page 395 - I measured him standing up against the wall, and marked the place ; not being satisfied with that, I put him in the middle of the room and placed a candle in front of him, so as to throw a shadow on the wall, which I also marked. When he awoke I measured him again in his natural size, both directly and by the shadow, and the results were equal. I can swear that he was not off the ground or standing on tiptoe, as I had full view of his feet, and moreover, a gentleman present had one of his feet placed... ...
I havent read any of the articles yet, so heres my big chance to insert my foot in my mouth. I will start collecting the references and will post what I learn, so public humiliation is a real possibility here. My guess is that the polymer is breaking up some sort of weak network in the solvent (hydrogen bonding, polar-polar interactions...) so that the solvent has a lower viscosity, thus leading to the negative intrinsic viscosity - and the need for a new theory to explain it. Yes, go with a new theory since the old theory made a certain set of assumptions that are no longer valid ...
The 2014 season of Formula 1 racing came to a close at this mornings Abu Dhabi GP, and the nail-biting, season-long duel for the championship between Mercedes drivers Lewis Hamilton and Nico Rosberg was over by the first corner- just not quite in the way that many (including me) predicted.. Lewis Hamilton, rather than crash his teammate out of contention the way Senna or Schumacher might have, played it absolutely straight and beat Rosberg- mercilessly- on the track.. Hamilton blasted past Rosberg at the start, and stretched out his lead with every lap. Rosberg couldnt catch him, made unforced errors, and- finally- his Mercedes succumbed to the same kind of electrical gremlins that had plagued Hamilton all year long, sliding well out of the points in the closing laps of the Abu Dhabi GP.. To Rosbergs credit, as well, he didnt pack it in and pit when called to on the radio. Instead, he preferred to finish the 2014 season- his best, yet in F1- in the car and on the track.. Bravo, ...
It took a catastrophic, unforced error from a major U.S. Senate nominee to prove the point: In 2012, candidate quality matters - a lot. After three consecutive wave elections - the Democratic landslides of 2006 and 2008 and the Republican revolution of 2010 - both parties have rapidly remembered that they cant always count...
Prof. Mikhail Kovalyov will talk about some work in Soliton Theory. Solitons are stable formations of nonlinear systems some of which might be described by PDEs, integral equations, graphs, etc. Many "soliton equations" describe motions of fluids and find a great deal of applications in the description of water waves and atmospheric waves e.g. tsunami and rogue waves.Prof. Mikhail Kovalyov is a professor of Mathematics at the University of Alberta, Canada. He obtained his PhD in Mathematics from the Courant Institute of Mathematical Sciences at New York University. He was in Ateneo, as a visiting professor, in 1993-1994. And it was at this time when he started working on the theory of solitons ...
The knowledge argument (also known as Marys room or Mary the super-scientist) is a philosophical thought experiment proposed by Frank Jackson in his article "Epiphenomenal Qualia" (1982) and extended in "What Mary Didnt Know" (1986). The experiment is intended to argue against physicalism-the view that the universe, including all that is mental, is entirely physical. The debate that emerged following its publication became the subject of an edited volume-Theres Something About Mary (2004)-which includes replies from such philosophers as Daniel Dennett, David Lewis, and Paul Churchland. Marys Room is a thought experiment that attempts to establish that there are non-physical properties and attainable knowledge that can be discovered only through conscious experience. It attempts to refute the theory that all knowledge is physical knowledge. C. D. Broad, Herbert Feigl, and Thomas Nagel, over a fifty-year span, presented insight to the subject, which led to Jacksons proposed thought ...
Now, I would assume, and this is only my assumption, that since these researchers collected this pelvic muscle data but did not report it, that they probably found that some of the women did not display rhythmic pelvic muscular activity at the time of orgasm. I would further assume that they chose not to deal with this inconvenience because pointing out that some women didnt have these pelvic contractions even when they claimed orgasms would seem like they were judging and invalidating the experience of orgasm had by those women. I get it. I do, and I also think that is a common reason why this aspect of female orgasm is so often ignored - niceness and terror of being accused of not believing womens descriptions of their own experience (at least I hope its that and not simply for convenience of conclusions). However, its lame, and its got to stop. This is scientific investigation, and physical knowledge of female orgasm will continue to linger in mushy, wishy-washy confusion if the ...
PHYSICS OF ANTIMATTER Our group is part of the GBAR collaboration (Gravitational Behavior of Antihydrogen At Rest), whose aim is to measure the effect of gravity on antihydrogen atoms by letting them fall in the gravitational field of the Earth. This international collaboration (involving (...)
Airy light-sheet microscopy (ALSM) has great potential to help further research and clinical diagnoses through its ability to image larger 3D volumes
This book is the result of many years of experience of the authors in guiding physics projects. It aims to satisfy a deeply felt need to involve students and their instructors in extended experimental investigations of physical phenomena. Over fifty extended projects are described in detail, at various levels of sophistication, aimed at both the advanced high school, as well as first and second year undergraduate physics students, and their instructors.
The very first cry of neonates is marked by their maternal language. This seems to be especially apparent in tonal languages, where pitch and pitch fluctuation determine the meaning of words. Chinese and German scientists under the leadership of the University of Würzburg have demonstrated this phenomenon for the first time by with newborn babies from…
Top free virtual sex change downloads. The ManageEngines Free VMware Configuration tool is a light weight tool, can configure VMware Virtual server (VMs ) resources such as CPU, RAM or execute Power operations or change the Name of the VMS, and also it fetches comprehensive data about the servers and its virtual machines and presents them as visually elegant graphs and reports in a desktop tool dashboard. As its name indicate, Virtual physics allows you to simulate certain physical phenomena on your computer in such a way that students - and general users - can actually see what happens in some natural conditions that are not easy to see in real life
2018 Ab initio calculations of scattering cross sections of the 3-body system (p,e+,e-) between the H(n=2)+e- and H(n=3)+e- thresholds. M. Valdes, M. Dufour, R. Lazauskas, and P. -A. Hervieux, Phys. Rev. A 97, 012709 (2018). Spin current generation by ultrafast laser pulses in ferromagnetic (...)
Intrinsic viscosity allows to monitor molecular interactions through standard QC procedures with portable and repeatable viscometer, microVISC.
The paper experimentally studies the effects of periodic unsteady wake flow and different Reynolds numbers on boundary layer development, separation and re-attachment along the suction surface of a low pressure turbine blade. The experimental investigations were performed on a large scale, subsonic unsteady turbine cascade research facility at Turbomachinery Performance and Flow Research Laboratory (TPFL) of Texas A&M University. The experiments were carried out at Reynolds numbers of 110,000 and 150,000 (based on suction surface length and exit velocity). One steady and two different unsteady inlet flow conditions with the corresponding passing frequencies, wake velocities, and turbulence intensities were investigated. The reduced frequencies chosen cover the operating range of LP turbines. In addition to the unsteady boundary layer measurements, surface pressure measurements were performed. The inception, onset, and the extent of the separation bubble information collected from the pressure ...
The physics is complicated. Light of a longer wavelength is red, orange and yellow. Shorter wavelength light is blue. In summary, light of a longer wavelength is absorbed by the pigment. This stops the colors being seen.. Light of a shorter wavelength is scattered in the iris and is visible. The scattering of the light is the same as the scattering that takes place in the sky. In both instances the light looks blue in color.. Accordingly, the blue of blue eyes is not due to blue colored pigmentation in the iris but is caused by a physical phenomenon.. In due course the cats eyes settle on the adult color. The most common color is from greenish-yellow to gold.. Siamese cats have blue eyes because a gene, causing a form of albinism, that removes color from the fur and from the iris.. Cats with some white fur - bicolor cats - sometimes have blue eyes. The white fur is coded by the piebald gene which also affects the eyes.. All white cats have blue eyes due to a lack of pigmentation. The fur is ...
George Francis Carrier, one of the worlds preeminent applied mathematicians and the T. Jefferson Coolidge Professor of Applied Mathematics Emeritus at Harvard University, died of cancer in a Boston hospital on March 8, 2002, at the age of 83. He had been a resident of Wayland, Massachusetts. George had a special talent for describing complicated physical phenomena mathematically. He would then deduce approximate analytic solutions that accurately described the behavior of the phenomena and permitted useful predictions. The rapidity with which he executed the analysis was often exceptional, and was facilitated by his ability to extend mathematical methods to serve his immediate needs.. He applied his talents in many fields, with emphasis on fluid dynamics, combustion, and natural hazards (including hurricanes, tornadoes, fires, and tsunamis---destructive ocean waves generated by earthquakes). Typically, he did not contrive the problems on which he worked; they were often brought to him by ...
In this paper we propose that aspects of quantum theory (e.g. quantum coherence) and of a newly proposed physical phenomenon of quantum wave function self-collapse(objective reduction: OR -Penrose, 1994) are essential for consciousness, and occur in cytoskeletal microtubules and other structures within each of the brains neurons. The particular characteristics of microtubules suitable for quantum effects include their crystal-like lattice structure, hollow inner core, organization of cell function and capacity for information processing. We envisage that conformational states of microtubule subunits (tubulins) are coupled to internal quantum events, and cooperatively interact (compute) with other tubulins. We further assume that macroscopic coherent superposition of quantum-coupled tubulin conformational states occurs throughout significant brain volumes and provides the global binding essential to consciousness ...
In this paper we propose that aspects of quantum theory (e.g. quantum coherence) and of a newly proposed physical phenomenon of quantum wave function self-collapse(objective reduction: OR -Penrose, 1994) are essential for consciousness, and occur in cytoskeletal microtubules and other structures within each of the brains neurons. The particular characteristics of microtubules suitable for quantum effects include their crystal-like lattice structure, hollow inner core, organization of cell function and capacity for information processing. We envisage that conformational states of microtubule subunits (tubulins) are coupled to internal quantum events, and cooperatively interact (compute) with other tubulins. We further assume that macroscopic coherent superposition of quantum-coupled tubulin conformational states occurs throughout significant brain volumes and provides the global binding essential to consciousness ...
Oxide scale behaviour in thermomechanical processing has been the subject of intensive research for several years that allowed development of a finite element (FE) based model to simulate a range of events of relevance to the process and to the surface quality of the hot rolled product. Oxide scale failure is predicted taking into account the main physical phenomena such as stress-directed diffusion, fracture and adhesion of the oxide scale, strain, strain rate and temperature. The most critical parameters for scale failure are measured during modified hot tensile testing and depend on the morphology of the particular oxide scale, scale growth temperature, and are also very sensitive to the chemical composition of the underlying metal. The work integrates finite element analysis with a range of experiments each to provide partial insight into oxide fracture, friction, heat transfer, pick-up and descaling, amongst others. An overview of this research is presented, revealing a variety of phenomena ...
Although considerable progress has been achieved in the last decades on Contact Mechanics, many problems are still open. The research field is still growing and diversified in many directions. Indeed, the research in contact mechanics has many facets which can be classified into understanding of physical phenomena, numerical simulations and industrial applications. ...
By: Aditya Nair One of the most baffling problems in science is that of consciousness. How exactly does our brain create consciousness? What brain mechanisms allow for the development of thoughts? Is consciousness a physical phenomenon? Probing the boundaries of our very existence itself, scientists have been pushing at this question for hundreds of years,…
MWF1 (4-370) Introduction to probability, statistical mechanics, and thermodynamics. Random variables, joint and conditional probability densities, and functions of a random variable. Concepts of macroscopic variables and thermodynamic equilibrium, fundamental assumption of statistical mechanics, microcanonical and canonical ensembles. First, second, and third laws of thermodynamics. Numerous examples illustrating a wide variety of physical phenomena such as magnetism, polyatomic gases, thermal radiation, electrons in solids, and noise in electronic devices. Concurrent enrollment in 8.04 is recommended. Y. Lee ...
Our research group at the University of Houston employs theoretical and computational approaches to understand physical phenomena across multiple disciplines-from materials science to biology. In collaboration with experimentalists, we use methods of applied mathematics, continuum mechanics, atomistic and quantum simulations among others, to carry out our research. I welcome you to our research website and encourage you to explore our ongoing projects.. ...
The Environmental Processes (EP) research focus area of the School of Civil and Environmental Engineering at Cornell University (http://www.cee.cornell.edu/) invites applications for research-based M.S./Ph.D. and Ph.D. studies beginning in the 2017/2018 academic year. Cornell offers graduate students the opportunity to individualize their course of study with a committee of faculty members to select the most important courses to complement their research. Students in the EP focus area take courses related to physical and chemical processes in water and wastewater treatment, water chemistry, biological processes, and a variety of specialized courses including environmental risk analysis, environmental fate and transport modelling, biocatalysis and biodegradation, and can also take advantage of an extensive range of courses in other environment-focused disciplines at Cornell. Research in the EP area generally focuses on the biological, chemical, and physical phenomena that affect the behavior and ...
Testing for ovarian cancer or the presence of a particular chemical could be almost as simple as distinguishing an F sharp from a B flat, thanks to a new microscopic acoustic device that has been dramatically improved by scientists at the U.S. Department of Energys (DOE) Argonne National Laboratory.. The device, known as a surface acoustic wave (SAW) sensor, detects frequency changes in waves that propagate through its crystalline structure. This makes it ideal for detecting the presence of chemicals or biomarkers present in a liquid or gas. For example, it can detect cancer proteins attached to a receptor on the sensor surface.. The initial wave is created by a physical phenomenon known as the piezoelectric effect, in which an initial electric signal is converted into a mechanical displacement. This displacement takes the form of a wave transmitted through the crystal.. In the SAW sensor, the signal travels like a seismic wave from the input transducer through the material to an output ...
The ground material occupying area is thin and not so large compared to areas such as atmosphere, ocean, or crust. However, the ground is located in the boundary position among the large areas. So, various amounts of biological activities or special chemical and physical phenomena are observed in geophese. In research process, method for describing the dynamic mechanisms of the ground material from the experimental results or various conservation laws are developed. Additionally, Id like to develop the soil solidification technology using the bio-chemical-thermal reactions and consider the process of forming the soft ground in the seabed. ...
On May 5, 2009 DARPA (Defense Advanced Research Projects Agency) announced that it is preparing to begin an exciting new research program that may be the most ambitious and direct effort by the United States Government to to push human technology closer to the edge of the awaiting Singularity. The program is referred to as Physical Intelligence, and DARPA is currently soliciting interested research groups to develop project proposals for submission. The ultimate goal of the effort will be to fundamentally understand the physical phenomenon of intelligence and to then demonstrate the characteristic in a man-made electronic or chemical system.. Although you might have considered taking on this problem yourself this weekend, its understandable if a weeks worth of yard work and Mothers Day preparations took a critical priority. Leaving this project to large governmental agencies and massive academic and industrial collaborations may be the best idea for your personal work-load at this ...
Temperature and Pressure Controllers form a large part of Process control Instrumentation. Then you have Flow, Humidity and many more custom parameters.. All Real Life Physical Phenomena are reduced to Analog Numbers by Sensors and Transducers. This analog value is amplified and linearized and brought into standardized windows like 1-5 Volts or 4-20mA and more.. These Analog Values go to Analog Closed Loop Controllers or Meters for Measurement and Control. In Embedded Controllers, the Analog is converted to Digital ( At least 12 bit, 8 bits are cheap not used for industrial automation, more than 16 bits is not required as sensor accuracy/linearity never transgress such precision ). Embedded Process Controllers may use Microcontrollers with Floating Point Arithmetic, Lookup Table, Logic and Basic Math. Advanced Controllers may use DSP and Complex Algorithms for Adaptive control. (self learn, fuzzy logic.).. There is a instruction sheet for a 3 wire transmitter. It Amplifies the uV signals from a ...
Paris, 14 August 2002 Last year was characterised by extremes of weather all over the globe, making it the second-hottest year on record, beaten only by 1988. This year is set to follow that pattern, beginning with a major heat wave: during the first quarter of the year, temperatures were 0.71 degrees Celsius (1.3 degrees Fahrenheit) warmer than the mean for temperatures between 1961 and 1990. Whats behind the apparent increase in weather extremes? To answer this increasingly urgent question, we need precise and detailed information about the physical phenomena that determine our weather and climate. To meet this challenge, a new series of European geostationary meteorological satellites dubbed MSG ("Meteosat Second Generation") has been developed. This has been has been achieved through the close cooperation between the European Space Agency (ESA) and EUMETSAT, the European Organisation for the Exploitation of Meteorological Satellites. With ESAs expertise in development of space technology ...
This May sees the next talk in the monthly Water Colloquium series organised by WIRC @ Bath exploring the breadth of water research being undertaken at the University of Bath and beyond.. Title: Linking chemical-soil interactions to pollutant fate and transport from soil to water. Speaker: Dr Brian J. Reid, Reader, School of Environmental Sciences, University of East Anglia. When: Thursday 18th May 2017 at 1.15pm. Where: Room 2.1, 6 East, University of Bath (Location and maps). Abstract: The seminar will begin by introducing the fundamentals of how chemical and physical phenomena underpin soil-pollutants interactions. From this perspective the implications of these interactions for pollutant bioavailability and transport will be developed. I will introduce seminal research relating to the application of cyclodextrins as bioavailability mimetics (and standardisation with the ISO). I will provide insights into the interplay between pollutant exposure, pollutant bioavailability and microbial ...
Papers from a symposium that focused on the physical phenomena of chemical plant accidents: fires, irradiation, convection, cloud formation, explosions, toxic diffusion, and more. 466 pages, © 1996
I started this project about 20 years ago, when depression and other bad moods were making my life miserable. A man I met during that time (now my husband) convinced me that I had to change; a therapist who offered medication scared me into finding a way to change. The result was my theory of brain chemistry, which goes beyond merely labeling mood disorders as physical phenomena and finding medication to fix them. I seek to explain bad brain chemistry in a way that shows the disorder to be rational and naturally human, and dealing with it something that a human can do through rational thought ...
I started this project about 20 years ago, when depression and other bad moods were making my life miserable. A man I met during that time (now my husband) convinced me that I had to change; a therapist who offered medication scared me into finding a way to change. The result was my theory of brain chemistry, which goes beyond merely labeling mood disorders as physical phenomena and finding medication to fix them. I seek to explain bad brain chemistry in a way that shows the disorder to be rational and naturally human, and dealing with it something that a human can do through rational thought ...
MIT physicists discover a new physical phenomenon that could eventually lead to the first increases in computers clock speed since 2002.
By Stephen M. Raffle, M.D.. I have explained the training of a psychiatrist in the FAQ "What is a Psychiatrist?" A psychologist has not attended medical school and does not possess medical expertise. Psychology is the study of mental (emotional) behavior. A psychologist is a person skilled in understanding mental (vs. physical) phenomenon. In California, a psychologist is a non-medical practitioner of the mental healing arts who is licensed by the state to perform those arts.. In order to be eligible to sit for the licensing examination in psychology, the candidate must have completed a Ph.D., Ed.D., or Psy.D. in psychology and been supervised for 3000 post-doctoral clinical hours by a California licensed psychologist, of which 1500 hours may be supervised by a Board-Certified Psychiatrist.. The curriculum for the study of psychology may emphasize administering psychological testing, scoring and interpreting test results, as well as course work and supervised treatment of patients (usually both ...
An extended period of unusually low precipitation that produces a shortage of water for people, animals and plants. Drought is different from most other hazards in that it develops slowly, sometimes even over years, and its onset is generally difficult to detect. Drought is not solely a physical phenomenon because its impacts can be exacerbated by human activities and water supply demands. Drought is therefore often defined both conceptually and operationally. Operational definitions of drought, meaning the degree of precipitation reduction that constitutes a drought, vary by locality, climate and environmental sector.. ...
How to Decrease Your Appetite. Appetite is both a psychological and physical phenomenon. Sometimes we eat when we are bored, stressed, or just because it is time to eat, even though we are not really hungry. There are many weight loss...
Observational evidence of two-way association between nocturnal boundary layer aerosols and cloud macrophysical properties under different meteorological conditions is reported in this paper. The study has been conducted during 2008-09 employing a high space-time resolution polarimetric micro-pulse lidar over a tropical urban station in India. Firstly, the study highlights the crucial role of boundary layer aerosols and background meteorology on the formation and structure of low-level stratiform clouds in the backdrop of different atmospheric stability conditions. Turbulent mixing induced by the wind shear at the station, which is associated with a complex terrain, is found to play a pivotal role in the formation and structural evolution of nocturnal boundary layer clouds. Secondly, it is shown that the trapping of energy in the form of outgoing terrestrial radiation by the overlying low-level clouds can enhance the aerosol mixing height associated with the nocturnal boundary layer. To ...
Recently a radically new biophysical theory of action potentials has been proposed, which I will call here the "soliton theory", according to which action potential propagation is a travelling pulse (soliton) of membrane (lipidic) lateral density, i.e., a sound wave along the axon membrane (Heimburg and Jackson, 2005; Andersen et al., 2009). In this theory, the lipid membrane undergoes a phase transition, from liquid to gel, which propagates along the axon. The electrical spike is then attributed to piezoelectric effects (mechanical changes inducing electrical potential changes). No role is attributed to proteins (ionic channels).. I start with some positive comments. Usually only the electrochemical aspects of neural excitability are considered in the field. But it is known that the electrical phenomenon is accompanied by mechanical, optical and thermal effects, which are the main focus of the soliton theory. The theory also has the merit of bringing attention to non-electrical phenomena in ...
The Quantum Dynamics Unit traps a 2D layer of electrons in liquid helium, held inside a sealed chamber and cooled to nearly absolute zero. Inside the chamber, a
There have also been a lot of books about new land, and the attraction to it. This book is also exceptional in expressing that concept. The oddly configured family deals with various obstacles--locusts, freak snow storms, bandits, and a badly timed broken leg, but they endure. Grey, still haunted by what he left behind, cant decide if he wants to push on or stay and realize his dream. "He felt as ease in his labor, a liberation to be lost in motion unforced and effortless and so closely part of his nature. But, occasionally, that same movement triggered memory, and his mind would wander back to other reaping, other fields, and his rhythm would break, the scythe moving with an uneconomical jerkiness, and hed find himself hacking at the ground. Hed stop, drop the tool, move his hands to the small of his back, stretch, knead flesh on muscle, attempt to return to the here-and-now, his breath, taking in this air in this place at this time, and after a while, hed take up the scythe and continue on ...
Kylians genius in "Bella Figura" is making us see dancers as bodies, not specifically male or female. The dancers looked completely at home with the choreography and the mood. Among the more striking moments were a topless Rie Ichikawa being enveloped in the folds of a black curtain, and the sight of nine dancers, male and female, all topless in bright red panniered skirts dancing sensuously to a Torelli siciliana. The partial nudity adds to the beauty, but seems so unforced and natural, it passes almost without thought. Best of all, though, was the central duet. To the Grave from Torellis "Concerto Grosso," Ichikawa and Kathleen Breen Combes each pull a curtain from the side, meeting in the middle where they kneel, before reaching out to each other tenderly and almost spiritually. Finally the curtains all rise to reveal two fires burning upstage. The dancers seem as if they are trying to get each other to relax. Couple by couple they exit, until just one pair is left. The music stops. They ...
Are you tired? Worn out? Burned out on religion? Come to me. Get away with me and youll recover your life. Ill show you how to take a real rest. Walk with me and work with me-watch how I do it. Learn the unforced rhythms of grace. I wont lay anything heavy or ill-fitting on you. Keep company with me and youll learn to live freely and lightly." ...
One night, a few weeks before her birthday my sweet girl, Emerson, and I went to take some pictures of her. What was meant to be a few minutes of taking some pictures to mark her 7th birthday turned into me witnessing the unforced and naturally sweet and free spirit of my girl. I kept attempting to focus her on the task at hand, but in her little girl way she would spot wildflower after wildflower. She moved from the "most beautiful flower" to the next "most beautiful flower" with eagerness and excitment. Im not sure when I realized that what I was watching was giving me more of a pure glimpse of her sweet little girl heart than posing her would, but I soon stopped talking and began moving around her as she discovered and smelled and danced in the sun that was close to making its last shouts of glory for that day. This was one of the moments that I captured and its become a favorite ...
Shining Forehead Breath (Kapalbhati Pranayam) Inhale through your nostrils normally until your lungs are full. Keep your inhalation slow but unforced. First, feel the diaphragm move down, allowing the lungs to expand and forcing the abdomen out; then feel your chest expand with your collar bones rising last. Exhale through both nostrils forcefully. This places…
A meltblown fiber comprising at least 20% by weight polyester selected from the group consisting of poly(ethylene terephthalate) having an intrinsic viscosity of less than 0.55 dl/g and poly(trimethylene terephthalate) having an intrinsic viscosity of less than 0.80 dl/g is provided. The meltblown fibers are collected as a web that can be incorporated into composite sheet structures.
An den Standorten TIB Technik/Naturwissenschaften, TIB Sozialwissenschaften und TIB Conti-Campus sind von Montag bis Freitag Ausleihen und Rückgaben (9 bis 15 Uhr) sowie Anmeldungen (10 bis 12 Uhr) möglich. Die Lesesäle am Standort TIB Conti-Campus sind montags bis freitags von 9 bis 15 Uhr eingeschränkt geöffnet, alle übrigen TIB-Standorte und Lesesäle bleiben geschlossen. Online und telefonisch sind wir weiterhin für Sie da, unsere digitalen Angebote sowie die TIB-Dokumentlieferung stehen wie gewohnt zur Verfügung.. ...
Results of an analytical and experimental investigation of the shearing stresses exerted on a smooth bottom by passage of oscillatory water waves are presented. Force measurements including time-history of instantaneous force during passage of waves and simultaneous measurements of instantaneous wave characteristics were made and corrected for pressure and inertia forces to obtain net tangential forces. Average resistance and damping coefficients were derived in terms of wave properties. Analysis of experimental results using these coefficients consistently showed experimental bottom shearing stresses greatly exceed those predicted by theory. The boundary layer was then assumed to be disrupted each half cycle due to flow separation, and periodic regrowth of the layer was calculated by the approximate momentum technique. Resistance and damping coefficients calculated on this basis show generally excellent agreement with experiment. (Author)*HYDRODYNAMICS
The PCC130 and the PCC130 SW are cardioid boundary layer microphones of professional quality that, due to their small size, fit perfectly on small tables. Thanks to low self-noise and very high sensitivity, the microphone picks up even distant voices clearly and naturally. A bass-tilt switch allows the user to tailor the low-end response and reduce subsonic noise. The PCC130 SW has a silent-operating programmable membrane switch that can be configured for touch on/off, momentary on or momentary off. A high-intensity LED lights when the unit is on. For easy installation, both microphones offer an XLR connector and a detachable cable. ...
Aerosol dry deposition is not much known for urban areas due to the lack of data. Knowledge on this phenomenon is necessary to understand pollutant fluxes in cities and to estimate inhabitant exposition to ionizing radiation of radioactive aerosols. A data providing could enable to enhance dry deposition models for these areas. An original experimental approach is performed to study submicron aerosol dry deposition on urban surfaces. Wind tunnel coupled to in situ experiments give results to study different physical phenomenon governing dry deposition. Dry deposition velocities are measured using aerosol tracers. These data are associated to turbulent and meteorological measured conditions. This database permits to classify the principal physical phenomenon for each experiment type. Finally, different phenomenon must be considered for chronic and acute exposition of urban surfaces to atmospheric particles. ...
|p|This paper describes the preparation and characterization of poly(ethyl cyanoacrylate) colloidal particles loaded with the organic fluorophore Rhodamine 6G. We studied the physicochemical properties of the colloidal particles: morphology, size-distribution, ζ-potential, fluorescent properties and photobleaching upon UV-light illumination. The properties of the obtained colloidal particles, as well as the dye loading efficiency, were found to depend on the concentrations of ethyl cyanoacrylate monomer and Rhodamine 6G in the polymerization medium. The fluorophore release from the colloidal particles in aqueous buffer is also studied. |inline-formula||alternatives| [...] |/alternatives||/inline-formula||/p|
This paper considers the effect of excessive total pressure losses for heat transfer problems in fluid flows with a high circumferential swirl component. At RWTH Aachen University, a novel gas generator concept is under research. This design avoids some disadvantages of small gas turbines and uses a rotating combustion chamber. During the predesign of the rotating combustion chamber using computational fluid dynamics (CFD) tools, unexpected high total pressure losses were detected. To analyze this unknown phenomenon, a gas-dynamic model of the rotating combustion chamber has been developed to explain the unexpected high Rayleigh pressure losses. The derivation of the gas-dynamic model, the physical phenomenon related to the high total pressure losses in high-swirl combustion, the influencing factors, as well as thermodynamic interpretation of the Rayleigh pressure losses, are presented in this paper. In addition, the CFD results are validated by the gas-dynamic model derived. The results ...
The physics department is actively engaged in the following research areas: Computational Physics, Materials Physics, Physics Education, Optical Physics, and several multidisciplinary research projects. The Department of Physics at Oregon State University has an active graduate-level research program and offers degree programs in physics, and engineering physics . Many options within the physics degree are available, and we also offer a minor in physics. Our interdisciplinary degree in computational physics is receiving national recognition as a model program.
The aim of this work was to reduce the viscosity of formaldehyde-free corn starch-mimosa tannin wood adhesives, without adversely affecting the mechanical properties of the product. The reduction of viscosity was achieved using shear refinement. The study focused on the physical phenomena before cross-linking of the wood adhesive. The physical (rheological characterization) and mechanical (bond strength) properties of formaldehyde-free corn starch and mimosa tannin wood adhesives were measured. The results showed that the shear refinement (290 rpm and 5 min, optimal conditions) reduced the viscosity of the corn starch-mimosa tannin wood adhesives (from 100 000 to 458 Pa s) with the advantage of being stable over time. Mechanical tests showed that the shear refinement did not influence the mechanical properties of corn starch-mimosa tannin wood adhesives. ...
Effective Soliton Fusion Process at the Advanced Stage of Supercontinuum Generation in Photonic Crystal Fibers. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.
The photophysics of the fluorescent probe Lucifer yellow CH has been investigated using fluorescence spectroscopic and computational techniques. The nonradiative rate is found to pass through a minimum in solvents of intermediate empirical polarity. This apparently anomalous behavior is rationalized by considering the possibility of predominance of different kinds of nonradiative processes, viz. intersystem crossing (ISC) and excited-state proton transfer (ESPT), in solvents of low and high empirical polarity, respectively. The feasibility of the proton transfer is examined by the structure determined by the density functional theory (DFT) calculations. The predicted energy levels based on the time-dependent density functional theory (TD-DFT) method in the gas phase identifies the energy gap between the S-1 and nearest triplet state to be close enough to facilitate ISC. Photophysical investigation in solvent mixtures and in deuterated solvents clearly indicates the predominance of the ...
Doctoral students in Physics and Astronomy have the opportunity to make original and significant contributions to science within a department recognized globally for leading research. The PhD program appeals to students planning a career in academia, government labs, leadership roles, and industry. The programs connects students with state-of-the-art experimental and computational facilities both here and at collaborating institutions, and with world-renowned researchers in one of six focus areas: Astronomy and Astrophysics, Complexity, Environmental and Isotope Physics, Radiation Oncology Physics, Quantum Information and Quantum, Atomic, and Molecular Optics, and Space Physics. These focus areas lie within program specializations that students apply to: Physics, Astrophysics, Space Physics or Radiation Oncology Physics (including Medical Imaging/Medical Physics).. The PhD under Radiation Oncology Physics (ROP) is a Commission on Accreditation of Medical Physics Education Program (CAMPEP) ...