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Intriguing Properties of Contrastive Losses [article]

Ting Chen and Calvin Luo and Lala Li
2021 arXiv   pre-print
We study three intriguing properties of contrastive learning.  ...  First, we generalize the standard contrastive loss to a broader family of losses, and we find that various instantiations of the generalized loss perform similarly under the presence of a multi-layer non-linear  ...  In addition, we are thankful to William Chan and Sara Sabour for ideas on implementation of sorting on TPUs.  ... 
arXiv:2011.02803v3 fatcat:g7c2ohsd3bh7npe3yr6eptzju4

Waveguiding in air by total external reflection from ultralow index metamaterials

Brian T. Schwartz, Rafael Piestun
2004 Applied Physics Letters  
These materials show intriguing optical properties including total external reflection. We utilize this effect to design and analyze slab waveguide structures that guide visible light in an air core.  ...  Optical micro-and nanostructured materials are intriguing because of their ability to control light in unconventional ways.  ...  These materials show intriguing optical properties including total external reflection.  ... 
doi:10.1063/1.1764596 fatcat:ejqvecdurfarrosecqd77qov5u

B-site Cation Ordering in BaaMnNbiO by Atomic Resolution HAADF-STEM and Their Valence State by EELS

Yan Xin, Qing Huang, Haidong Zhou, Zahra Shafieizadeh
2018 Microscopy and Microanalysis  
Perovskite-related transition metal oxides are among the most intriguing material systems in the field of solid state chemistry and physics.  ...  Accurate knowledge of the microstructures and atomic ordering of this material lead to clear understanding of its physical properties, such as its magnetic properties or magnetic ground state.  ...  Perovskite-related transition metal oxides are among the most intriguing material systems in the field of solid state chemistry and physics.  ... 
doi:10.1017/s1431927618001228 fatcat:glw4tazwfzbphgweqikp67r6be

Lorentz Transmission Electron Microscopy Imaging of Magnetic Textures in MnBi

Núria Bagués, Brandi L. Wooten, Bin He, Brian C. Sales, Joseph Heremans, David McComb
2021 Microscopy and Microanalysis  
This contributes to a larger study exploring the influence of such textures on the thermal transport properties of MnBi.  ...  In contrast, imaging of a field cooled (~2T) sample revealed at 90K, when the field was removed, coexistence of stripe domains and magnetic bubbles, with the latter most abundant in the thick regions of  ...  properties in this system.  ... 
doi:10.1017/s1431927621007832 fatcat:eltbuguflfhkpiyicgm6wojtvy

Page 60 of American Society of Civil Engineers. Collected Journals Vol. 125, Issue 1 [page]

1999 American Society of Civil Engineers. Collected Journals  
These theoretical observations are confirmed with computational simulations of dynamic failure of a flexural member INTRODUCTION In contrast to the loss of stability the assessment of locali- zation properties  ...  Aside from measuring canonical degradation of stiffness and strength, the spectral properties of tangent operators of continuum models define two types of failure models: One of them corresponds to loss  ... 

Discussion: "Wear and Compatibility Behavior of Liquid Metal Bearing Materials" (Wallace, M. J., 1967, ASME J. Lubr. Technol., 89, pp. 466–472)

E. E. Bisson
1967 Journal of Lubrication Technology  
The data on wear with sintered carbides of Table 7 are intriguing if I am interpreting the results correctly.  ...  and frictional properties.  ... 
doi:10.1115/1.3617032 fatcat:2zdoeguylbh3vlu6qzrgmhux4i

Self-formed 2D/3D Heterostructure on the Edge of 2D Ruddlesden-Popper Hybrid Perovskites Responsible for Intriguing Optoelectronic Properties and Higher Cell Efficiency [article]

Zhaojun Qin, Shenyu Dai, Chalapathi Charan Gajjala, Chong Wang, Viktor G. Hadjiev, Guang Yang, Jiabing Li, Xin Zhong, Zhongjia Tang, Yan Yao, Arnold M. Guloy, Rohith Reddy (+6 others)
2020 arXiv   pre-print
Using 2D (BA)2(MA)2Pb3Br10 as an example, we show that 3D MAPbBr3 is formed due to the loss of BA on the edge.  ...  This self-formed MAPbBr3 can explain the reported edge emission under various conditions, while the reported intriguing optoelectronic properties such as fast exciton trapping from the interior 2D perovskite  ...  edge emission and many intriguing and beneficial optoelectronic properties. 3D perovskite is naturally formed after the loss or replacement of BA and subsequent connection of lead halide octahedrons in  ... 
arXiv:2001.09477v1 fatcat:ok47uqfqwzge5bb6k6knvaro3e

Intriguing Properties and Applications of Functional Magnetic Materials [chapter]

Sabah Abdelbasir, Ahmed Esmail Shalan
2019 Functional Materials [Working Title]  
Functional magnetic materials, also called the smart materials of the future, are a group of materials having important and interesting physical properties, which can be affected when an external magnetic  ...  They are intriguing models that have a strong impact on improving different technologies.  ...  Intriguing Properties and Applications of Functional Magnetic Materials DOI: http://dx.doi.org/10.5772/intechopen.81386 an intrinsic upper limit of μ 0 M s = 2.43 T for an Fe 65 Co Intriguing Properties  ... 
doi:10.5772/intechopen.81386 fatcat:x23twlfeojbfbhxvbtpy55j7ri

Letter by De Rosa and Indolfi Regarding Article, "Clinical Presentation and Outcomes of Coronary In-Stent Restenosis Across 3-Stent Generations"

S. De Rosa, C. Indolfi
2015 Circulation. Cardiovascular Interventions  
Both the different biological properties of BVS-neointima and the restoration of physiological vasomotion could help explain the new paradigm by which the clinical outcome after BVS implantation is seemingly  ...  Zhang et al 3 recently compared acute gain, late lumen loss, and the clinical outcome with BVS or everolimus-eluting DES.  ... 
doi:10.1161/circinterventions.115.002375 pmid:25805571 fatcat:zs72cz3nrbgordkyat6wqdtmqq

Diffusion magnetic resonance imaging: Its principle and applications

Susumu Mori, Peter B. Barker
1999 The Anatomical Record  
This method exploits the random diffusional motion of water molecules, which has intriguing properties depending on the physiological and anatomical environment of the organisms studied.  ...  We explain the principles of this emerging technique and subsequently introduce some of its present applications to neuroimaging, namely detection of ischemic stroke and reconstruction of axonal bundles  ...  One of the most intriguing properties of the tensor is that certain combinations of the diffusion tensor elements are not susceptible to contrast caused by this anisotropy effect.  ... 
doi:10.1002/(sici)1097-0185(19990615)257:3<102::aid-ar7>3.3.co;2-y pmid:10397783 fatcat:ikg36lepdbeixgxpeu653t56r4

Diffusion magnetic resonance imaging: Its principle and applications

Susumu Mori, Peter B. Barker
1999 The Anatomical Record  
This method exploits the random diffusional motion of water molecules, which has intriguing properties depending on the physiological and anatomical environment of the organisms studied.  ...  We explain the principles of this emerging technique and subsequently introduce some of its present applications to neuroimaging, namely detection of ischemic stroke and reconstruction of axonal bundles  ...  One of the most intriguing properties of the tensor is that certain combinations of the diffusion tensor elements are not susceptible to contrast caused by this anisotropy effect.  ... 
doi:10.1002/(sici)1097-0185(19990615)257:3<102::aid-ar7>3.0.co;2-6 pmid:10397783 fatcat:hzishk5dbfb65epwui24ji4nbu

Understanding the Behaviour of Contrastive Loss [article]

Feng Wang, Huaping Liu
2021 arXiv   pre-print
In this paper, we concentrate on the understanding of the behaviours of unsupervised contrastive loss.  ...  Therefore, we find that the contrastive loss meets a uniformity-tolerance dilemma, and a good choice of temperature can compromise these two properties properly to both learn separable features and tolerant  ...  Different from the above works, we focus mainly on the inherent properties of the contrastive loss function.  ... 
arXiv:2012.09740v2 fatcat:77zgyl5oojaz7k7swsmtnvmgci

Laser-writing of ring-shaped waveguides in BGO crystal for telecommunication band

Lingqi Li, Weijie Nie, Ziqi Li, Carolina Romero, René I. Rodriguez-Beltrán, Javier R. Vázquez de Aldana, Feng Chen
2017 Optics Express  
We report on the fabrication of ring-shaped waveguides operating at the telecommunication band in a cubic Bi 4 Ge 3 O 12 (BGO) crystal by using technique of femtosecond laser writing.  ...  The homogenous guidance along both TE and TM polarizations has been obtained at telecommunication wavelength of 1.55 μm.  ...  To create compact and efficient networks of photonic structures, not only low propagation losses but also reasonable bend losses are required which depend upon a large positive index contrast Δn.  ... 
doi:10.1364/oe.25.024236 pmid:29041368 fatcat:2kwizc54ffbspdg2fztcdtzxbi

Atomic and Electronic Structure of Black Arsenic and Ambient Stability Studied by Analytical STEM

Hwanhui Yun, Supriya Ghosh, Prafful Golani, Steven J. Koester, K. Andre Mkhoyan
2020 Microscopy and Microanalysis  
phosphorus. 1-3 Even at the early stage of research, BAs has shown intriguing characteristics from anisotropic materials properties to the thickness-dependent electronic structures. 3-6 To better understand  ...  Two-dimensional (2D) black arsenic (BAs) is a van der Waals layered material, which has atomic structure and physical properties analogous to one of the most prominent and well-studied 2D materials, black  ...  (a) Low-loss EELS as a function of the number of layers.  ... 
doi:10.1017/s1431927620016050 fatcat:kjlzbue5lrdcrakytepzcqrege

Page 263 of Mid-America; An Historical Review Vol. 49, Issue 4 [page]

1967 Mid-America; An Historical Review  
In the ensuing debate, an intriguing Irish doctrine on “freedom of the seas” emerged to challenge the policies of official Washington.  ...  In contrast to the general outcry, Irish-American propagandists rushed to Ger- many’s defense.  ... 
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