Metamaterial. Medical search. Frequent questions

Metamaterials derive their properties not from the properties of the base materials, but from their newly designed structures. (wikipedia.org)
Some of the earliest structures that may be considered metamaterials were studied by Jagadish Chandra Bose, who in 1898 researched substances with chiral properties. (wikipedia.org)
reported the experimental demonstration of functioning electromagnetic metamaterials by horizontally stacking, periodically, split-ring resonators and thin wire structures. (wikipedia.org)
In 2010, Caltech researchers developed an optical metamaterial that uses a surface coated with three-dimensional structures to redirect light as desired . (caltech.edu)
Similarly, metamaterials are constructed from a repeating series of nano- and micro-scale structures that give them their unique properties. (caltech.edu)
This survey delves into the recently-accelerated progress of shape memory/recovery energy-absorbing metamaterials (EAMM) and energy-absorbing smart/intelligent structures (EASS). (doaj.org)
First, the introduction gives some fundamental concepts of metamaterials and their application to energy-absorbing structures. (doaj.org)
The Spectra Research suite of EM tools allows for the exploitation of the advantages associated with custom materials such as metamaterials, electronic bandgap (EBG) structures, and artificial dielectrics/magnetics. (sbir.gov)
While most of such artificial material structures developed so far are based on metallic resonant structures, Mie resonances of dielectric particles open a simpler and more versatile route for construction of isotropic metamaterials with higher operating frequencies. (materialstoday.com)
Novel metamaterials deployed to provide a barrier around critical structures are designed to redirect and attenuate hazardous seismic waves. (mit.edu)
These barriers utilize metamaterials that create an effective subsurface medium composed of subwavelength structures with seismic manipulation properties not present in natural geological strata. (mit.edu)
In particular, this multi-disciplinary project aims to fabricate multi-scale metamaterials with novel quasicrystalline structures, such as Fibonacci Square or Cubic Grids [5], using additive manufacturing (AM) techniques and to explore these metamaterials for an application in wave propagation. (findaphd.com)
The research team designed and 3D-printed their own mechanical metamaterial structures which exhibit the same frustrated and non-orientable behaviour as Möbius strips. (uva.nl)
The research presented in this thesis concerns antenna designs based on metamaterial-inspired structures. (bham.ac.uk)
Based on a review of the existing literature and understanding of the background theories, different metamaterial-inspired structures are applied to designs of resonant antennas (RAs) and leaky wave antennas (LWAs) for improved antenna characteristics. (bham.ac.uk)
the novel metamaterial-inspired supercell structures enable the LWA designs with the dual-passband property and the backward-to-forward leaky-wave radiation characteristics in each passband. (bham.ac.uk)
Engineers at the University of Colorado Boulder have built a metamaterial that can be used to cool structures without drawing on any energy. (westfloridacomponents.com)
Metamaterials are broadly defined as artificial, electromagnetically homogeneous structures that exhibit unusual physical properties that are not present in nature. (cam.ac.uk)
Prof. Tony Grbic , Assistant Professor in the Department of Electrical Engineering and Computer Science, was recently awarded an NSF CAREER grant for the project, "Advances in Metamaterial Structures and Devices. (umich.edu)
Areas of particular interest to his research group include antennas and radiating systems, microwave circuits and engineered electromagnetic structures (metamaterials, electromagnetic bandgap materials, frequency selective surfaces). (umich.edu)

They used metamaterials, which are able to manipulate light in the terahertz range due to their special microscopic structure. (materialstoday.com)
The aim of this work is to develop a metamaterial absorber that can be incorporated into a terahertz (THz) imaging system with a 4.7 THz quantum cascade laser (QCL) illumination source. (nps.edu)
A tunable terahertz (THz) chain-link metamaterial (CLM) is presented, which is composed of a tailored Au layer fabricated on Si substrate. (teraview.com)
A magnetic control enrichment technique combined with terahertz metamaterial biosensor for detecting SARS-CoV-2 spike protein. (bvsalud.org)
In this study, we propose a terahertz (THz) biosensing technology that capitalizes on the properties of THz metamaterial in conjunction with magnetic nanoparticles . (bvsalud.org)

These materials are known as negative-index metamaterials. (wikipedia.org)

video: University of Pennsylvania Professor Nader Engheta gives a brief introduction to the field of metamaterials: composite materials that are engineered to have electromagnetic properties that aren't found in nature. (eurekalert.org)
The outcome is a breakthrough in the field of metamaterials: designer materials whose responses are determined by their structure rather than their chemical composition. (uva.nl)
According to Grbic, "There has been significant research interest in the field of metamaterials in the past seven years, but very little effort has been invested into metamaterial education. (umich.edu)

Engineers at Caltech and ETH Zürich in Switzerland have created a method to systematically design metamaterials using principles of quantum mechanics. (caltech.edu)
Before our work, there was no single, systematic way to design metamaterials that control mechanical waves for different applications,' she says. (caltech.edu)
Finite Element (FE) simulations were utilized to design metamaterials and a Fourier Transform Infrared Spectrometer (FTIR) was employed to characterize the absorption spectrum of each metamaterial configuration. (nps.edu)

Nanomanufacturing technology has enabled scientists to create metamaterials - stuff that never existed in nature - with unusual optical properties. (nextbigfuture.com)

Alex's research is focussed on taking electromagnetic metamaterials into the third dimension, both in terms of their design, and fabrication through the use of advanced manufacturing methods. (exeter.ac.uk)

As a result, the metamaterial, composed of an array of IDC-loaded ELC resonators with their collective electromagnetic response, possesses improved homogeneity and hence is less influenced by diffraction effects of individual cells. (arxiv.org)
In this context, a new paradigm in metamaterials research emerges when the building blocks of metamaterials are quantum resonators, e.g. quantum dots (QDs), QD molecules, graphene disks coupled to interacting QDs, and quantum nanowires, case in which the macroscopic properties of quantum metamaterials are determined by the quantum properties of their basic constituents. (europa.eu)
Within this infant field, a promising approach to fabricate locally resonant acoustic metamaterials is the use of resonators composed of a heavy core surrounded by a rubber shell dispersed in an epoxy matrix. (purdue.edu)
The transmission properties of the acoustic metamaterials made with resonators with different core diameters, core materials, and level of ordering within the matrix, were measured using a piezoelectric transducer setup capable of testing from 1 kHz to 50 kHz. (purdue.edu)
For example, acoustic metamaterials composed of randomly dispersed 1.4 mm alumina-core resonators at about 25 vol% concentration in epoxy showed a well-defined band-gap around 11 kHz. (purdue.edu)
Overall this technique offers a robust path for the fabrication of acoustic resonators and locally resonant acoustic metamaterials. (purdue.edu)

Although the Astronomy Instrumentation Group has contributed many polarization modulators based on birefringent and metamaterials operating at millimetre wavelengths this current development represents a significant technology step in this field. (cardiff.ac.uk)
Thicker, 3-D metamaterials with negative refraction have only been reported at longer microwave wavelengths. (analytica-world.com)

Acoustic and seismic metamaterials are also research areas. (wikipedia.org)
Meanwhile, a wafer-thin acoustic metamaterial might reflect incoming sound waves to soundproof a room. (caltech.edu)
Phononic crystals and acoustic metamaterials are architected lattices designed to control the propagation of acoustic or elastic waves. (aps.org)
In addition, we show how we can tune the vibro-acoustic response of the metamaterial through external stimuli. (aps.org)
This broad review summarizes recent advances and "hot"research topics in nanophononics and elastic, acoustic, and mechanical metamaterials based on results presented by the authors at the EUROMECH 610 Colloquium held on April 25-27, 2022 in Benicássim, Spain. (amolf.nl)
Acoustic metamaterials provide the remarkable ability to control, direct, and manipulate sound waves. (purdue.edu)
The competitive landscape of the industry has also been examined along with the profiles of the key players being Acoustic Metamaterials Group Ltd, Echodyne Corp, Fractal Antenna Systems Inc., JEM Engineering LLC, Kymeta Corporation, Metamagnetics Inc, Metamaterial Technologies Inc., MetaShield LLC, Nanoscribe GmbH & Co. KG (Cellink AB), Plasmonics Inc. and TeraView Limited. (researchandmarkets.com)

This report explores 8 distinct applications of optical and radio-frequency metamaterials, including reconfigurable intelligent surfaces, metalenses, and radar beamforming. (idtechex.com)

Greg's research is centred on manipulating wave propagation using structured materials and metamaterials, across a variety of wave regimes from electromagnetism to elasticity. (exeter.ac.uk)
Pierce works in the Wave Propagation and Metamaterials Laboratory with Assistant Professor Kathryn Matlack , who studies how elastic waves move through different materials. (illinois.edu)
Pierce, a PhD candidate, focuses on designing metamaterials which use coupled physics to achieve active control of wave propagation. (illinois.edu)
In metamaterials currently, there are a lot of papers on either theory or computation, but in the Wave Propagation and Metamaterials Laboratory Pierce has also begun to do experimentation. (illinois.edu)

Similarly, the basic concept behind metamaterials is to assemble artificial materials from 'metamolecules,' which are manmade elementary building blocks," explained Eric Plum, a research lecturer at the University of Southampton's Optoelectronics Research Centre and Centre for Photonic Metamaterials. (phys.org)
We are delighted to see the Centre for Metamaterial Research and Innovation continue expanding to encompass new research areas, new applications and new partners. (exeter.ac.uk)

Analysis of experimental data provided insight in determining the refractive index of the metamaterial dielectric, SiOx, from 3-8 THz and confirmed the Lorentzian shape for the absorption spectrum as theoretically proposed by another group. (nps.edu)

I report a theoretical study of collective coherent quantum-mechanical oscillations in disordered superconducting quantum metamaterials (SQMs), i.e. artificial arrays of interacting qubits (two-levels system). (nature.com)
Quantum mechanics governs the often-counterintuitive behavior of subatomic particles, and would seem to have no bearing on the micro- and macro-scale designs of the metamaterials studied by Daraio's team. (caltech.edu)
The overarching aim of this proposal is to initiate and advance an integrated theoretical and computational research programme in an emerging area of metamaterials research, namely Quantum Metamaterials. (europa.eu)
The first will focus on the development of a general theory of the effective, macroscopic properties of quantum metamaterials. (europa.eu)
The key challenge is to build a theoretical framework in which the macroscopic properties of quantum metamaterials are derived directly from those of their quantum building blocks. (europa.eu)
The second theme will be geared towards developing a set of numerical methods and software tools for ab initio simulations of fundamental physical properties quantum metamaterials. (europa.eu)

Unlike ordinary materials, which are assembled at the atomic level, metamaterials are composite materials built up from artificially engineered meta-atoms and meta-molecules. (europa.eu)
Two breakthroughs in the development of metamaterials - composite materials with extraordinary capabilities to bend electromagnetic waves - are reported separately this week in the Aug. 13 advanced online issue of Nature, and in the Aug. 15 issue of Science. (analytica-world.com)

Utilizing S-parameters obtained from 3-D full wave simulations, we test the method on magnetodielectric metamaterials. (nist.gov)

This gold metamaterial nanostructure is a nanoscale version of the structure described by the University of Southampton researchers in Applied Physics Letters, and it exhibits large specular optical activity for oblique incidence illumination with light (rather than specular optical activity for microwaves). (phys.org)

Appropriately designed metamaterials can affect waves of electromagnetic radiation or sound in a manner not observed in bulk materials. (wikipedia.org)

Despite their promise and wide array of possible applications, metamaterials will not be used widely unless engineers can design them to have particular desired properties. (caltech.edu)
A metamaterial is any man-made substance-an exotic metal alloy, for example-that displays properties not normally found in nature. (thedailybeast.com)
At the heart of the group's work are metamaterials- materials constructed with unique shapes and symmetries that generate properties which don't occur in their natural counterparts. (phys.org)
The operational principles of the device uses the different reflective properties of a perfect electrical and magnetic surfaces, the former being reflection from a normal metal surface and the latter being a surface which can only be created with metamaterials (they do not occur naturally). (cardiff.ac.uk)
Furthermore, continuously tuning the properties (such as capacitance) of these periodic conductive patterns enables the 2D metamaterial to operate as a phase array, directing the signal to where it is needed and reducing the need for amplification. (idtechex.com)
Other metamaterials offer unique magnetic properties that could have applications in microelectronics or data storage. (nextbigfuture.com)
Nanowerk News ) Georgia Institute of Technology researchers have demonstrated an optical metamaterial whose chiroptical properties in the nonlinear regime produce a significant spectral shift with power levels in the milliwatt range. (nanowerk.com)
The researchers recently demonstrated properties of their chiral metamaterial, in which they spectrally modified two absorptive resonances by incrementally exposing the material to power intensities beyond its linear optical regime. (nanowerk.com)
Metamaterials are artificial materials which are engineered to achieve certain properties that naturally occurring materials cannot achieve. (cleantechnica.com)
This is done using metamaterials with special optical properties that transform space in much the same way as the presence of mass deforms space - as described in Einstein's general theory of relativity. (cleantechnica.com)
Due to their anomalous backward power flow, it has been recently discussed whether even the classic definition of Poynting vector, defining the power flux per unit surface, should be modified when dealing with metamaterials with exotic properties. (it.pt)
A metamaterial is an artificial substance with remarkable properties not possessed by natural substances. (westfloridacomponents.com)
The fundamental idea in this area of research is that remarkable physical properties beyond those available in naturally occurring materials can be achieved by designing the meta-constituents of the metamaterial and structuring it at a scale comparable or smaller than the optical wavelength. (europa.eu)
This review addresses the optical characteristics of metamaterials obtained from the major macromolecules found in nature: carbohydrates, proteins and DNA, highlighting their biosensor field use, and pointing out their physical properties and production paths. (cam.ac.uk)
Other research teams have previously developed metamaterials that function at optical frequencies, but those 2-D materials have been limited to a single monolayer of artificial atoms whose light-bending properties cannot be defined. (analytica-world.com)
We propose two distinctive designs of metamaterials demonstrating antireflective properties in the optical and near infrared region and, simultaneously, a high reflectivity in the mid-infrared. (spie.org)

Many military radars operate at around 10 gigahertz, meaning the Chinese metamaterial in concept works in exactly the frequency that's most important for American air defenses. (thedailybeast.com)
The power of the metamaterial technique is that the entire image can be collected from a single sweep through the range of illumination frequency. (extremetech.com)
33 forecast lines, segmented by frequency and application, illustrate how the metamaterial market will evolve over the next 20 years. (idtechex.com)
Additionally, as metamaterial absorbers are thin, lightweight, and can be utilized over a wide frequency range, they are gaining traction in the electronics industry across the globe. (researchandmarkets.com)
The presence of target molecules in to the metamaterial variation in the frequency, amplitude, and phase of the resonance response, thus enabling swift, accurate and sensitive detection . (bvsalud.org)

To construct a metamaterial with mechanical memory, physicists Xiaofei Guo, Marcelo Guzmán, David Carpentier, Denis Bartolo and Corentin Coulais realised that its design needs to be 'frustrated', and that this frustration corresponds to a new type of order, which they call non-orientable order. (uva.nl)

Metamaterials are engineered macroscopic composites with an artificial, three-dimensional (3D), periodic cellular architecture. (researchandmarkets.com)

A metamaterial (from the Greek word μετά meta, meaning "beyond" or "after", and the Latin word materia, meaning "matter" or "material") is any material engineered to have a property that is rarely observed in naturally occurring materials. (wikipedia.org)
In the late 1940s, Winston E. Kock from AT&T Bell Laboratories developed materials that had similar characteristics to metamaterials. (wikipedia.org)
Metamaterials are engineered materials that exploit the geometry of their internal structure to manipulate incoming waves. (caltech.edu)
While the optical activity for light reflected by natural materials is negligible, the researchers found that the same isn't at all true for metamaterials. (phys.org)
As with many things metamaterial, it only works for microwaves but has the redeeming merit of being able to see through materials such as clothes, wood, rain, and dust, which means it can provide an alternative to expensive Lidar systems. (extremetech.com)
The project involves fabricating quasicrystalline metamaterials at multiple scale lengths (microns to mm) using 3-d printing methodologies and investigating the propagation of photons through these materials, seeking for possible applications in photonics. (findaphd.com)
The materials are called magnetic metamaterials . (cleantechnica.com)

Moreover, metamaterial coatings are used to increase bandwidth, reduce the size, and enhance the radiator efficiency of small electric and magnetic dipole antennas. (researchandmarkets.com)
The magnetic nanoparticles are employed to selectively bind with target molecules, and migrate towards the THz metamaterial unit cell when exposed to an applied magnetic field . (bvsalud.org)

In their study, the researchers fabricated a hyperbolic metamaterial out of arrays of silver nanowires grown in alumina membranes. (technovelgy.com)

While much progress has been made in the design of metamaterials that interact with electromagnetic waves, overall, the design of mechanical metamaterials-those that influence mechanical waves, such as sound waves or seismic waves-remains a scattershot affair, says Chiara Daraio , a professor of mechanical engineering and applied physics at Caltech. (caltech.edu)
A simple metamaterial ring can thus function as a mechanical computer. (uva.nl)

We have designed an effective geological metamaterial to form a seismic-muffler that substantially reduces seismic ground motion experienced within a specified protection region. (mit.edu)

Such a structure is predicted to exhibit an intriguing mode structure and we will discuss possible schemes for coupling superconducting qubits to these metamaterials. (aps.org)

Metamaterials appear homogenous to electromagnetic waves because their artificial structure is of subwavelength size-metamaterials for light are structured on the nanoscale, while those for microwaves are structured on the scale of millimeters or centimeters. (phys.org)

The innovative research undertaken by the Astronomy Instrumentation Group at Cardiff University has contributed hardware to many projects worldwide and one of its primary activities is the design, manufacture, test and deployment of quasi-optical components based on metamaterials. (cardiff.ac.uk)
A recent paper, "Multi-Octave Metamaterial Reflective Half-Wave Plate for Millimetre and Sub-Millimetre wave Applications,"[ 1 ] published in the Optical Society Journal, Applied Optics, describes the research behind the device. (cardiff.ac.uk)
The research, supported by the National Science Foundation and the Air Force Research Laboratory, was reported February 27 in the journal Nature Communications ( 'Intensity-dependent modulation of optically active signals in a chiral metamaterial' ). (nanowerk.com)
Future work will incorporate the metamaterial absorber design of this research into a more efficient, cost effective, bi-material THz sensor that can be employed in a variety of naval applications. (nps.edu)
According to Xiabo Yin, an assistant professor at Colorado Boulder and a director of the research, the new metamaterial could be a game changer in the field of radiative cooling technology. (westfloridacomponents.com)
The team has been awarded a grant of $3 million for the invention of the metamaterial and the related research projects by the Advanced Research Projects Energy Agency connected with the DOE. (westfloridacomponents.com)
The project started in collaboration with the Air Force Research Lab where Pierce used their 3D printer to build a research structure out of his specific metamaterial. (illinois.edu)
With Pierce aspiring to go into academia, this fellowship and investment into his work is invaluable, enabling him to continue making strides in metamaterials research and experimentation. (illinois.edu)
What we have done is take two very different approaches to the challenge of creating bulk metamaterials that can exhibit negative refraction in optical frequencies," said Xiang Zhang, professor at UC Berkeley's Nanoscale Science and Engineering Center, funded by the National Science Foundation (NSF), and head of the research teams that developed the two new metamaterials. (analytica-world.com)
The objective of Grbic's research is to examine new methods of manipulating microwaves through the application of wave-focusing metamaterials. (umich.edu)
He anticipates his research over the next five years will lead to the emergence of a new class of metamaterials. (umich.edu)
Grbic-who has authored a chapter in one of only three texts currently available on metamaterials-plans to develop a full web-based curriculum to help encourage the spread of teaching and research focusing on metamaterials. (umich.edu)

We are investigating one-dimensional metamaterials consisting of superconducting circuit elements that operate in the microwave regime. (aps.org)

The global metamaterials market size reached US$ 485 Million in 2021. (researchandmarkets.com)

The tests showed that at both places, the metamaterial had an average radiative cooling power of 110 W/square meters for 72 hours at a stretch. (westfloridacomponents.com)

In June 2015, they reported the realization of one of the long-standing theoretical predictions in nonlinear optical metamaterials: creation of a nonlinear material that has opposite refractive indices at the fundamental and harmonic frequencies of light. (nanowerk.com)

Metamaterials are characterized by counterintuitive phenomena, which have been debated since their first practical realization. (it.pt)

In recent years, various metamaterials have received substantial attention for their ability to exhibit simultaneous negative permittivity and permeability. (aps.org)

This paper presents a method for the determination of the effective electromagnetic parameters of a metamaterial, taking boundary effects at the interfaces between a conventional material and metamaterial into account. (nist.gov)
This work thus presents a "snapshot"of the state-of-the-art of different nanophononics- and metamaterial-related topics rather than a historical view on these subjects, in contrast to a conventional review article. (amolf.nl)

Metamaterials enabled us to invent a material with the characteristics we needed:" said Dr Giampaolo Pisano . (cardiff.ac.uk)

Their work could pave the way for wider use of metamaterials in more mainstream applications by creating a purpose-driven framework for their design. (caltech.edu)
Increasing attention on metamaterials has been paid due to their exciting physical behaviors and potential applications. (materialstoday.com)
These metamaterials will make possible a variety of applications ranging from radar stealth technology to high-efficiency solar cells and photodetectors. (technovelgy.com)
Tests show that the power applications do not damage the metamaterial. (nanowerk.com)
The metamaterial, which could make for an environmentally friendly and cost-effective technique for cooling homes and industrial applications, has been discussed in the journal Science. (westfloridacomponents.com)
Biomolecule-Based Optical Metamaterials: Design and Applications. (cam.ac.uk)
Applications for a metamaterial entail altering how light normally behaves. (analytica-world.com)
Both bring us a major step closer to the development of practical applications for metamaterials. (analytica-world.com)

The publisher provides an analysis of the key trends in each sub-segment of the global metamaterials market report, along with forecasts at the global, regional and country level from 2022-2027. (researchandmarkets.com)

Meanwhile, sunlight travels through the metamaterial and is reflected back by the silver coating, which prevents any solar heating. (physicsworld.com)

Thus, it is commonly believed that one of the most noteworthy developments witnessed in the last decade in physical sciences and engineering is the emergence of metamaterials. (europa.eu)

In their latest study, Engheta and colleagues have laid out a theory for metamaterials that can do mathematical operations on the profiles of light waves. (eurekalert.org)
The paper, by Alexandre Silva at University of Pennsylvania in Philadelphia, PA, and colleagues was titled, "Performing Mathematical Operations with Metamaterials. (eurekalert.org)
Rather, they created a mathematical model that describes a metamaterial with incredible stealth qualities. (thedailybeast.com)

One of the more exotic among them is to use metamaterials (Opens in a new window) to perform hardware compression during image acquisition. (extremetech.com)

Researchers have discovered that a hyperbolic metamaterial with a corrugated surface has very low reflectance: ordinary black paint absorbs about 85% of incident light, whereas the new material absorbs up to 99% of incident light. (technovelgy.com)
The researchers believe that may be the strongest nonlinear optical rotation ever reported for a chiral metamaterial, and is about a hundred thousand times larger than the current record measurement for this type of structure. (nanowerk.com)
In the Nature paper, the UC Berkeley researchers stacked together alternating layers of silver and non-conducting magnesium fluoride, and cut nanoscale-sized fishnet patterns into the layers to create a bulk optical metamaterial. (analytica-world.com)

For example, a metamaterial that manipulates electromagnetic waves might bend light in an unusual way to create a cloaking device. (caltech.edu)
This can be done with an unusual method - with metamaterials. (materialstoday.com)

Then, they ground the surface of the metamaterial to produce corrugations and defects, which they predicted would dramatically reduce the light reflection, increasing the absorption. (technovelgy.com)

In this Rhino Grasshopper Tutorial, we will first take a look at some related projects to Auxetics & Metamaterials and then we will use the Linketix Plugin to design several Auxetic patterns. (grasshopper3d.com)

Metamaterials and metasurfaces are exciting new tools that can solve some of the many issues faced in biomedical engineering such as miniaturization of components and power consumption. (exeter.ac.uk)

Numerical analysis has been performed on commonly used metamaterial designs: a perforated metallic plate and a metallic cross grating. (spie.org)

This modulation of chiroptical responses from metamaterials by manipulating input power offers the potential for new types of active optics such as all-optical switching and light modulation. (nanowerk.com)

A team of Chinese scientists have created a new "metamaterial" that could dramatically shrink the radar signature of a jet or missile. (thedailybeast.com)
This new, lab-made "metamaterial," in essence a very fine mesh with microscopic etchings, could shrink the radar signature of a fighter jet, warship, or missile by a thousand times, claimed the scientists at the Chengdu-based Institute of Optics and Electronics, part of the Chinese Academy of Sciences. (thedailybeast.com)

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