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Pressure-dependent phase transition of 2D layered silicon telluride(Si2le3)and manganese intercalated silicon telluride

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Nano Research 2019年第9期12卷 2373-2377页

作者： Virginia L. johnson Auddy Anilao Kristie J. Koski Department of Chemistry University of CaliforniaDavisDavisCA 95616USA

Two-dimensional(2D)layered silicon telluride(SizTes)nanocrystals were compressed to 12 GPa using diamond anvil cell *** measurements show a color change from transparent red to opaque black indicating a semiconductor-to-metal phase *** scattering was used to observe the stiffening of the crystal lattice and subsequent phase behavior.A possible phase transition was *** 9.5±0.5 GPa evidenced by the disappearance of the Atg stretching *** was intercalated with elemental manganese to^1 at.%.Intercalation lowers the pressure of the proposed phase transition to 7.5±1 *** modes show both phonon stiffening and phonon softening,suggesting negative linear *** results provide fundamental insight into the high-pressure optical phonon behavior of silicon telluride and illuminate how a specific electron-donating intercalant can chemically alter pressure-dependent optical phonon behavior.

关键词： silicon telluride Si2Te3 high pressure diamond anvil cell two-dimensional(2D)layered material

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Observations of defect propagation in [100]-oriented opal-type photonic crystals

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Chinese Physics B 2008年第4期17卷 1298-1304页

作者：金崇君 Richard M.De La Rue Nigel P.johnson Department of Electronics & Electrical Engineering University of Glasgow School of Physics and Engineering Laboratory of Optoelectronic Materials and TechnologiesSun Yat-Sen University

Charged colloidal suspensions have been used as experimental models for the study of crystal nucleation. Here we propose that the technique of template-assisted colloidal self-assembly can be used to visualize the effects of defect propagation in atomic crystal films produced using epitaxial growth. Templates with periodic line defects were used to grow [100]-oriented three-dimensional photonic crystals by means of the template-assisted colloidal self-assembly method, aided by capillary and gravitational forces. The defect propagation in the [100]-oriented photonic crystal was observed using scanning electron microscopy, both at the surface of the crystal and on cleaved facets. This method is useful in the understanding of defect propagation in the growth of colloidal films on templates - and the same approach may also prove useful for the understanding of atomic crystal growth on substrates with defects. Additionally, the deliberate incorporation of line defects may prove valuable as a way of introducing waveguide channels into three-dimensional photonic crystals.

关键词： photonic crystal colloidal crystal self-assembly

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Increased Mortality Risk in Children with Fetal Alcohol Spectrum Disorders: A Scoping Review

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Open Journal of Pediatrics（儿科学期刊） 2024年第4期 754页

作者： Devin Evavold Tyler Mueller Erika johnson Marilyn G.Klug Larry Burd

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Peterson's ultimate GRE tool kit 1st ed.

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2004年

作者： Drew johnson.

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FOCUS： PUNITIVE DAMAGES IN CHINA PUNITIVE DAMAGES, CHINESE TORT LAW, AND THE AMERICAN EXPERIENCE

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Frontiers of Law in China-Selected Publications from Chinese Universities 2014年第3期9卷 321-358页

作者： Vincent R. johnson Yale University New Haven Connecticut USA Professor of Law and Director of the Institute on Chinese Law & Business at StMary’s University San Antonio Texas USA.

In a country such as China, with abundant consumer products and the inevitability of product defects, claims for punitive damages are sure to arise under Article 47 of the new Chinese Tort Law. Article 47 provides that ＂（w）hereany producer or seller knowingly produces or sells defective products, causing death or serious damage to the health of others, the injured party may request appropriate punitive damages.＂ As Chinese jurists and scholars interpret Article 47, they may wish to consider whether lessons can be drawn from the American experience. During the past two decades, few areas of American law have changed more radically than the law on punitive damages. While there were once few restraints on the ability of a judge or jury to impose punitive damages in a case involving egregious conduct, today there are a host of limitations embodied in American state and federal law. In many American states, statutes or judicial decisions restrict the ability of a court to award punitive damages by narrowly defining the types of conduct that will justify a punitive award, raising the standard of proof capping the amount of punitive damages, requiring a portion of a punitive award to be forfeited to the state, or limiting vicarious liability for punitive damages. In addition, under federal constitutional law, the principle of due process limits the imposition of punitive damages by scrutinizing the ratio between compensatory and punitive damages and prohibiting an award to be based on harm to persons other than the plaintiff. An examination of these developments from a comparative law perspective may prove useful to the implementation of Article 47.

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Common-path interferometric label-free protein sensing with resonant dielectric nanostructures

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Light(Science & Applications) 2020年第1期9卷 1086-1094页

作者： Isabel Barth Donato Conteduca Christopher Reardon Steven johnson Thomas F.Krauss Department of Physics University of YorkYO105DD YorkUK Department of Electronic Engineering University of YorkYO105DD YorkUK

Research toward photonic biosensors for point-of-care applications and personalized medicine is driven by the need for high-sensitivity,low-cost,and reliable *** the most sensitive modalities,interferometry offers particularly high performance,but typically lacks the required operational simplicity and ***,we introduce a common-path interferometric sensor based on guided-mode resonances to combine high performance with inherent *** sensor exploits the simultaneous excitation of two orthogonally polarized modes,and detects the relative phase change caused by biomolecular binding on the sensor *** wide dynamic range of the sensor,which is essential for fabrication and angle tolerance,as well as versatility,is controlled by integrating multiple,tuned structures in the field of *** approach circumvents the trade-off between sensitivity and dynamic range,typical of other phase-sensitive modalities,without increasing *** sensor enables the challenging label-free detection of procalcitonin,a small protein(13 kDa)and biomarker for infection,at the clinically relevant concentration of 1 pg mL^(−1),with a signal-to-noise ratio of *** result indicates the utility for an exemplary application in antibiotic guidance,and opens possibilities for detecting further clinically or environmentally relevant small molecules with an intrinsically simple and robust sensing modality.

关键词： dielectric integrating simplicity

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Crafting Short Screenplays That Connect, Second Edition 2nd ed.

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2005年

作者： Claudia H. johnson

ISBN: (纸本)9780240806419;0240806417

The only screenwriting book that includes a DVD that contains performances of the short films and screenplays that are featured in the book!The beauty and power of any story lies in its ability to connect to the reader, listener, or observer. Crafting Short Screenplays That Connect is the first screenwriting guide to introduce connection as an essential, although essentially overlooked, aspect of creating stories for the screen and of the screenwriting process itself. Written with clarity and humor, this book teaches the craft of writing short screenplays by guiding the student through carefully focused writing exercises of increasing length and complexity. Eight award-winning student screenplays are included for illustration and *** text is divided into three parts. Part one focuses on preparing to write by means of exercises designed to help students think more deeply about the screenwriter's purposes; their own unique vision, material and process; and finally about what screenplays are at their simplest and most profound level--a pattern of human change, created from specific moments of change--discoveries and decisions. Part two teaches students how to craft an effective pattern of human change. It guides them through the writing and re-writing of 'Five (Not So Easy) Pieces'--five short screenplays of increasing length and complexity--focusing on a specific principle of dramatic technique: The Discovery, The Decision, The Boxing Match, The Improbable Connection, and The Long Short Screenplay. Part Three presents the five screenplays used throughout the book to illustrate the dramatic principles that have been discussed, and includes interviews with the screenwriters, a look at where they are now and what they are doing, and brief discussion of how each film evolved. * Groundbreaking book that stresses human connection as the basis of a good screenplay-not conflict* The only screenwriting book that includes a DVD

关键词： Motion picture authorship.

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Telecommunication breakdown concepts of communication transmitted via software-defined radio C. Richard johnson, Jr. and William A. Sethares.

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2004年

作者： C. Richard johnson Jr. and William A. Sethares.

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Ignition and combustion of pyrotechnics at low pressures and at temperature extremes

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Defence Technology（防务技术） 2017年第3期13卷 119-126页

作者： Clive Woodley R.Claridge N.johnson A.Jones QinetiQ MOD Fort Halstead

Rapid and effective ignition of pyrotechnic countermeasure decoy flares is vitally important to the safety of expensive military platforms such as aircraft. Qineti Q is conducting experimental and theoretical research into pyrotechnic countermeasure decoy flares. A key part of this work is the development and application of improved models to increase the understanding of the ignition processes occurring for these flares. These models have been implemented in a two-dimensional computational model and details are described in this paper. Previous work has conducted experiments and validated the computational model at ambient temperature and pressure. More recently the computational model has been validated at pressures down to that equivalent to 40,000 feet but at ambient temperature(~290 K).This paper describes further experimental work in which the ignition delays of the priming material in inert countermeasure decoy flares were determined for pressures down to 40,000 feet and at temperature extremes of -40℃ and 100℃ Also included in this paper is a comparison of the measured and predicted ignition delays at low pressures and temperature extremes. The agreement between the predicted and measured ignition delays is acceptable.

关键词：压力下降极端温度点火过程烟火二维计算模型燃烧实验工作点火延迟

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Simulation of mode conversion at the magnetopause

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Chinese Science Bulletin 2012年第12期57卷 1375-1383页

作者： LIN Yu johnson Jay WANG XueYi LU QuanMing Physics Department Auburn University Auburn 36849 USA Department of Geophysics and Planetary Science University of Science and Technology of China Hefei 230026 China princeton Plasma Physics Laboratory Princeton University Princeton 08543 USA

Two-dimensional(2-D)and three-dimensional(3-D)hybrid simulations are carried out for mode conversion from fast mode compressional wave to kinetic Alfvn waves(KAWs)at the inhomogeneous magnetopause *** cases in which the incident fast wave propagates in the xz plane,with the magnetopause normal along x and the background magnetic field pointing along z,the 2-D (xz)simulation shows that KAWs with large wave number kxρi～1 are generated near the Alfve′n resonance surface,whereρi is the ion Larmor *** nonlinear wave properties are manifest in the mode conversion *** of the driver frequency are *** a result of nonlinear wave interaction,the mode conversion region and its spectral width are *** the 3-D simulation,after this first stage of the mode conversion to KAWs with large kx,a subsequent generation of KAW modes of finite ky is observed in the later stage,through a nonlinear parametric decay *** the nonlinear cascade to ky can lead to massive transport at the magnetopause,the simulation results provide an effective transport mechanism at the plasma boundaries in space as well as laboratory plasmas.

关键词：模拟模式磁层顶等离子体边界模式转换非线性波非线性参数波动力学混合模拟

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