• The factors which influence capillary flow are well established (contact angle, geometry and surface tension), but the behavior of gas-liquid flows subject to capillary phenomena in the complex, manifolding passages of PEM fuel cells is not fully understood. (mtu.edu)
  • Achievement of the NNS's objectives requires a great effort for a synchronous implementation of a National Plan of Action on Nutrition (NPAN) with communication activities for awareness raising, proper nutrition behavior change, specific nutrition intervention programs which are appropriate for different target areas and groups, and priorities to be given to women and children. (who.int)
  • Continuous monitoring of ground pressure and strata movement during longwa1l mining has improved the understanding of the abutment load transfer phenomena, pillar loading-yielding behavior, and roof caving meclw1iams. (cdc.gov)
  • The networks are trained with data from high accuracy boundary integral simulations, a technique for simulating Newtonian flows at low Reynolds number, in which only the interface between fluid phases is meshed. (aps.org)
  • A sharp interface approach for modeling cavitation phenomena in incompressible viscous flows is presented. (aps.org)
  • In physics, transport phenomena are all irreversible processes of statistical nature stemming from the random continuous motion of molecules, mostly observed in fluids. (wikipedia.org)
  • Such phenomena or processes are typically modeled by parabolic PDE's with singular and/ or degenerate. (mittag-leffler.se)
  • Strong interactions in nanomaterials may open pathways for novel photocurrent generation processes in photovoltaics or electronic-phase-change mediated transistor conductance, perhaps enabling devices that can break traditional performance limits. (oregonstate.edu)
  • Processes involving phase change and phase equilibria necessitate an examination of the principles and laws of thermodynamics in order to quantify changes in energy and efficiency. (marketsandmarkets.com)
  • Processes that focus on the flow of material and energy as it approaches equilibria, on the other hand, are best analysed using the disciplines of fluid mechanics and transport phenomena. (marketsandmarkets.com)
  • The Coulomb interaction energy scale in nanomaterials can exceed the scales of quantum kinetic energy and the thermal energy at room temperature, giving rise to interesting electronic phenomena that are absent in materials with weak interactions. (oregonstate.edu)
  • Electronic phenomena in nanomaterials are complex and the theory for describing them is not yet complete. (oregonstate.edu)
  • Casola notes that businesses, resource manager, utilities and irrigators increasingly accept the notion of climate change, and many try to incorporate the information into long-term plans. (sciencedaily.com)
  • People are becoming more savvy to the issue of climate change. (sciencedaily.com)
  • A new Maunder-type solar activity minimum cannot offset the global warming caused by human greenhouse gas emissions," wrote authors Georg Feulner and Stefan Rahmstorf, noting that forecasts by the Intergovernmental Panel on Climate Change forecast a maximum 4.5 degree Celsius rise by this century's end compared to the latter half of the 20th century. (sott.net)
  • In particular, rich nations who bear the most responsibility for climate change must provide the finance required to achieve a tripling of renewable energy capacity globally by 2030. (commondreams.org)
  • The Special Issue of Geosciences titled: "Preservation of Cultural Heritage and Resources Threatened by Climate Change" has been launched to take stock of the existing, but still fragmentary knowledge on this challenge-at European level only two projects, Noah`s Ark (2007), and Climate for Culture, (2014) finalized their research on these issues-and to enable the heritage community to respond to the implementation of the Paris Climate agreement. (mdpi.com)
  • Additional research, to assess past and future weather-related events affecting cultural heritage is needed to document experience of how cultural heritage were affected and responded to changing climate (e.g., using previous data surveys, archival data, photographs), and to plan long-term management scenarios of heritage sites on the base of future climate change projections. (mdpi.com)
  • Climate change, resulting in a larger likelihood of droughts, floods, and other environmental disasters may thus have major implications resulting in negative economic consequences, especially for marginalized populations, including in various areas already suffering from humanitarian crises. (air.org)
  • Register for our October 12 webinar, Addressing Socioeconomic Indicators of Climate Change Vulnerability . (air.org)
  • AIR's work is closely associated with ongoing challenges related to climate change and programs to increase the resilience of marginalized populations to climate change. (air.org)
  • Learn more about AIR's institution-wide commitment to generating and using evidence to build climate change resilience and create opportunities for all to thrive. (air.org)
  • The evaluation of the Orange-Fleshed Sweet Potato and Maternal and Infant Health Program in Tanzania assessed mechanisms to increase long-term adoption of biofortified, drought-resistant, vitamin A rich sweet potato varieties to improve food security in the face of climate change. (air.org)
  • The impacts of climate change are already affecting the health, economic well-being, and security of people across the globe. (air.org)
  • In this Q&A, Principal Economist Juan Bonilla describes AIR's efforts to help governments and policymakers mitigate these effects and reduce the growing inequities that climate change can exacerbate. (air.org)
  • Another example is in biomedical engineering, where some transport phenomena of interest are thermoregulation, perfusion, and microfluidics. (wikipedia.org)
  • We utilize the incompressible Navier-Stokes equations with a modified Poisson equation to account for phase change taking place at the boundary. (aps.org)
  • The contact angle, θ C , is the angle formed by a liquid at the three-phase boundary where the liquid, gas, and solid intersect. (wikipedia.org)
  • For example, electron-hole attraction changes optical transition energies due to exciton formation, which dominate the absorption cross section of semiconducting and metallic CNTs at room temperature. (oregonstate.edu)
  • Looking towards November and the next UN Climate Summit (COP28), it is imperative that governments harness this momentum by committing to a global renewable energy target at the same level of ambition as the G20, the swift phase out of fossil fuels alongside the development of renewable energy capacity, and ensure the money is there to finance the transition. (commondreams.org)
  • Some observers interpreted the cancelation of the EPM rule, along with changes reducing the number of physicians compelled to participate in the MIPS in the final 2018 Quality Payment Program (QPP) rule, as a "stall" in the transition to value in public programs. (hfma.org)
  • Using the Carnot cycle to determine changes of the phase transition temperature by Oskar Grocholski, Kornel Howil, Stanisław Rakowski and Piotr Maksymiuk. (aapt.org)
  • From 15 to 18 months (which I label Phase 2) there are few reports of newly appearing gender/sex behavioral differences, and I hypothesize that this absence reflects a period of developmental instability during which there is a transition from gender/sex as primarily inter-subjective to gender/sex as primarily subjective. (frontiersin.org)
  • then explore what changes might occur during a hypothesized phase transition (15 to 18 months), and finally, review the emergence and initial stabilization of individual subjectivity-the period from 18 to 36 months. (frontiersin.org)
  • Thermoresponsive microgels are one of the most investigated types of soft colloids, thanks to their ability to undergo a Volume Phase Transition (VPT) close to ambient temperature. (lu.se)
  • The single-phase, finite-volume flow solver uses five million grid points with around two million points clustered to resolve the shear layer. (aps.org)
  • His current research interests include solidification of water droplets at different scales and (anti-/de)icing of aircraft surface, pumped two-phase cooling system with multi-circuit micro-channel heat exchangers around flow boiling, frosting and defrosting of a multi-circuit heat exchanger in refrigeration systems, and thermal comfort for buildings and energy storage with phase change materials, etc. (eurekaselect.com)
  • We demonstrate, both experimentally and by computer simulation, that while the metastable face-centered cubic (fcc) phase of Ge-Sb-Te becomes amorphous under hydrostatic compression at about 15 GPa, the stable trigonal phase remains crystalline. (elsevierpure.com)
  • Upon decompression, the amorphous phase is retained when starting with the fcc phase while the initial structure is recovered when starting with the trigonal phase. (elsevierpure.com)
  • We futher compare the amorphous phase obtained via the pressure route with the melt quenched amorphous phase. (elsevierpure.com)
  • Solid-state crystallization at this amorphous drug-water interface is not well understood, nor is the role played by excipients in influencing this crystallization phenomenon. (aiche.org)
  • Interpretive 2D lattice Monte Carlo simulations exhibit semi-quantitative agreement with experiments and elucidate the impact of the surface energy of the underlying amorphous material on the morphology of the crystalline phase. (aiche.org)
  • Previously, we reported [1] the unambiguous determination of the optical band gaps of amorphous, fcc and hexagonal phases of GST by proper analyses of optical data (SE, IR absorption spectra, and photoconductivity). (mrs.org)
  • The technique of fluctuation electron microscopy (FEM), which is carried out in the TEM, has been used to probe the existence of nanometer-scale structural order in the amorphous phase. (mrs.org)
  • Parallels and Contrasts in the Properties of Ge-Sb-Te Phase Change Alloys and Chalcogenide Glasses . (mrs.org)
  • and (3) parallels and contrasts in the developing understanding of the phase-change chalcogenide alloys. (mrs.org)
  • We argue that the presence of vacancies and the associated subsequent large atomic displacements lead to nanoscale phase separation and the loss of the initial structure memory in the fcc staring phase of Ge-Sb-Te. (elsevierpure.com)
  • This effect can be visualized in the phenomenon called phase separation. (wikipedia.org)
  • An enhanced surface adsorption is typically obtained from dilute mixtures of a polyelectrolyte and an oppositely charged surfactant under conditions when there is a bulk associative phase separation in the mixture. (lu.se)
  • Often the phase-separation and enhanced deposition can be obtained by a simple dilution process. (lu.se)
  • Almost all of these physical phenomena ultimately involve systems seeking their lowest energy state in keeping with the principle of minimum energy. (wikipedia.org)
  • These results provide fundamental insight for ultimately mitigating this undesirable phase change. (aiche.org)
  • As such, cognitive interviewing provides in-depth understanding of the ways in which a question operates, the type of phenomena that it captures, and how it ultimately serves (or fails) the scientific goal. (cdc.gov)
  • In chemical engineering, transport phenomena are studied in reactor design, analysis of molecular or diffusive transport mechanisms, and metallurgy. (wikipedia.org)
  • A lack of effective screening tools for early detection of ovarian cancer in high-risk and general populations has led to increased interest in the identification of precursor lesions defined by both morphological and molecular changes that could be the target of not only early detection but prevention efforts. (hindawi.com)
  • In engineering, physics, and chemistry, the study of transport phenomena concerns the exchange of mass, energy, charge, momentum and angular momentum between observed and studied systems. (wikipedia.org)
  • What physics dictates the shapes of these phenomena? (aapt.org)
  • Mass, momentum, and heat transport all share a very similar mathematical framework, and the parallels between them are exploited in the study of transport phenomena to draw deep mathematical connections that often provide very useful tools in the analysis of one field that are directly derived from the others. (wikipedia.org)
  • Thus, the different phenomena that lead to transport are each considered individually with the knowledge that the sum of their contributions must equal zero. (wikipedia.org)
  • Transport phenomena are ubiquitous throughout the engineering disciplines. (wikipedia.org)
  • Transport phenomena encompass all agents of physical change in the universe. (wikipedia.org)
  • However, the scope here is limited to the relationship of transport phenomena to artificial engineered systems. (wikipedia.org)
  • Every aspect of transport phenomena is grounded in two primary concepts : the conservation laws, and the constitutive equations. (wikipedia.org)
  • The conservation laws, which in the context of transport phenomena are formulated as continuity equations, describe how the quantity being studied must be conserved. (wikipedia.org)
  • These equations also demonstrate the deep connection between transport phenomena and thermodynamics, a connection that explains why transport phenomena are irreversible. (wikipedia.org)
  • Transport phenomena have wide application. (wikipedia.org)
  • An important principle in the study of transport phenomena is analogy between phenomena. (wikipedia.org)
  • Preliminary experiments explore these findings by connecting qualitative crystallization observations to the underpinning transport phenomena facilitating surface rearrangement. (aiche.org)
  • Emerging memory technologies, Non-Volatile Memories phenomena (NVMs), (e.g. (ukessays.com)
  • We are investigating the fundamental optical, electronic, and structural properties of the Ge 2 Sb 2 Te 5 (GST) phase-change alloy that is used as the active medium in rewritable optical memory disks, and in current-switched phase-change random access memories now under development. (mrs.org)
  • How does the modeling context influence kindergarteners' ability to learn to model physical phenomena? (concord.org)
  • Like many such emergent climate phenomena, dust devils are driven by a temperature difference between the surface and the surrounding atmosphere. (wattsupwiththat.com)
  • In my last post, Glimpsed Through The Clouds , I put up a movie I made of the seasonal changes in the relationship between sea surface temperature and thunderstorms. (wattsupwiththat.com)
  • However, the temperature change associated with any reduction in sunspot activity would likely be minimal and not enough to offset the impact of greenhouse gases on global warming, according to scientists. (sott.net)
  • Recent solar 11-year cycles are associated empirically with changes in global surface temperature of 0.1 Celsius," said Judith Lean, a solar physicist with the US Naval Research Laboratory. (sott.net)
  • ENSO is described by the National Oceanic and Atmospheric Administration (NOAA) as "a recurring climate pattern involving changes in the temperature of waters in the central and eastern tropical Pacific Ocean. (air-worldwide.com)
  • On the topic of frosting and defrosting of air source heat pump, he proposed a series of definitions to describe thermophysical phenomena. (eurekaselect.com)
  • In our opinion the experimental findings support our interpretation of the findings we obtained from observation of expressive phenomena direct. (erowid.org)
  • In collaboration with experimental groups, we study rapid phase changes following an intense laser pulse. (iit.it)
  • The aim of the present project is to provide fundamental understanding of the kinetics of this process by combining models of kinetics with experimental data by obtained by using surface techniques such as neutron reflectometry and ellipsometry as well as scattering techniques to reveal the changes in composition at the interface versus time. (lu.se)
  • The intraepithelial carcinomas have been referred to as serous intraepithelial carcinomas (STICs) but our own findings (unpublished data) and recent reports have drawn attention to a spectrum of changes that fall short of STICs that we have designated serous tubal intraepithelial lesions (STILs). (hindawi.com)
  • However, this fundamental phenomenon still lacks a detailed microscopic understanding, particularly regarding the presence and the role of charges in the deswelling process. (lu.se)
  • This biological phenomenon is universal. (rollingout.com)
  • The biological nature of the subject matter (including phenomena such as phase change and rheology, as well as operational aspects) brings excellent opportunities to include uncertainty quantification into the modelling effort. (warwick.ac.uk)
  • A notable change in this stream of research has been from an initial "crusade" phase, characterized by a few pioneers, towards a phase that increasingly calls for a more critical and questionable approach to the plethora of initiatives and efforts that now exist. (lu.se)
  • However, this phase can represent a critical situation caused by changes in a woman's life, including physical, mental, and social changes, as well as fetal changes, resulting in risk to maternal or fetal health, characterizing a high-risk pregnancy(1). (bvsalud.org)
  • Beyond that, other applications include understanding changes of state in various materials (so-called 2nd order phase transitions). (polytechnique.edu)
  • But perhaps to the greatest degree, these changes have reflected the fact that the previous approach to monetary policy was simply not delivering the goods. (bis.org)
  • The HBT effect is often treated as a quantum phenomenon, but the authors use a conceptually simpler classical wave approach. (aapt.org)
  • The Sensing Science through Modeling Matter: Kindergarten Students' Development of Understanding of Matter and Its Changes project is developing and researching a technology-enriched curriculum to support learning about matter and its changes at the kindergarten level. (concord.org)
  • Requirements caused by COIL integration in real systems may seriously change conceptions of actually important operational characteristics. (spie.org)
  • Recent experiments allowed to track the dynamics of matter on ultrafast timescales, where many important phenomena are taking place. (iit.it)
  • However, the deal fails to address the equally important phase out of fossil fuels. (commondreams.org)
  • What makes this phase particularly important, and what changes do you hope to see happen by the end of this phase? (nhc.nl)
  • The two most important climate signals linked to seasonal activity are the phase of the El Niño-Southern Oscillation (ENSO) and Atlantic sea surface temperatures (SSTs), which this year are in competition with each other in terms of impact on Atlantic hurricane activity. (air-worldwide.com)
  • This is a big change, and one increasingly supported by the IMF. (bis.org)
  • As women traverse the transformative phase of menopause, a myriad of physical and emotional changes unfold, marking the end of reproductive years. (rollingout.com)
  • How do kindergarteners understand and use particulate models to explain physical phenomena such as states of matter and phase changes? (concord.org)
  • Carbon nanotubes (CNTs) are a rare, real-world, one-dimensional electronic system that exhibit strong interactions between charge carriers and offer a unique opportunity to study interaction-driven optoelectronic phenomena. (oregonstate.edu)
  • Of particular interest is the micro- or nano-structural basis for the rapidly reversible, thermally-induced atomic scale rearrangements that underlie the phase change phenomenon. (mrs.org)
  • Electronic and Atomic Structure of Chalcogenide Phase Change Material Ge2Sb2Te5. (mrs.org)
  • Likewise, the amount of snow can be affected by a long-term climate cycle in the North Pacific called the Pacific Decadal Oscillation, which changes between positive and negative phases on the order of every 20 years. (sciencedaily.com)
  • For example, comparing the two upper curves with the two lower curves, their order is changed. (electronics-cooling.com)
  • These changes, in their turn, have to affect to directions of designers' efforts aimed to both the lasers and the whole systems. (spie.org)
  • This step, which is viewed as a metaplastic change, would be necessary to explain the morphologic appearance of ovarian epithelial tumors which have a müllerian-type phenotype. (hindawi.com)
  • Model trends can be quite misleading- could just change right back. (universetoday.com)
  • While the current El Niño phase of ENSO, increases vertical wind shear and suppresses tropical cyclone formation, the forecast warm SSTs in the Atlantic generally contribute to tropical cyclone formation. (air-worldwide.com)
  • In an El Niño phase, SSTs increase in the eastern tropical Pacific, which in turn increases the intensity of the vertical wind shear over the tropical Atlantic-conditions that can inhibit tropical cyclone formation in the Atlantic. (air-worldwide.com)
  • With researchers from Purdue University and the University of Massachusetts, Amherst, we will develop and research a curriculum supporting early science learning of concepts involving matter and its changes. (concord.org)
  • The significant increase in the supply of entrepreneurship education has led to a parallel growth in research with an interest in mapping the phenomena and contributing with debate and knowledge exchange about pedagogical approaches and curriculum development. (lu.se)
  • Navigating these changes requires a nuanced understanding of metabolism during menopause and adopting strategies for maintaining a healthy weight. (rollingout.com)
  • Building conceptual understanding of matter and its changes in kindergarten students. (concord.org)
  • This decline triggers a cascade of changes, from irregular menstrual cycles to hot flashes, night sweats, and mood swings. (rollingout.com)
  • Beyond reproductive changes, menopause significantly influences cardiovascular health. (rollingout.com)
  • Beginning at 18 months (i.e., the start of Phase 3), a toddler's subjective sense of self as having a gender/sex emerges, and it solidifies by 3 years of age. (frontiersin.org)
  • These dramatic changes provide an intriguing scenario and call for research within social psychology, especially within the social representations perspective, in search of new contents and structures of meaning. (bvsalud.org)
  • QFT gives us a way to calculate critical exponents, which are key parameters describing these phenomena. (polytechnique.edu)
  • Depending on its phase, ENSO can either foster or hinder hurricane development. (air-worldwide.com)
  • What those who pin their hopes on "global warming" to offset the effects of sun cycles seem ignore is that the onset of ice ages have been preceded by a drastic warming phase. (sott.net)