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detailed characterization of kHz-rate laser-driven fusion at a thin liquid sheet with a neutron detection suite

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High Power Laser Science and Engineering 2024年第1期12卷 13-23页

作者： Benjamin M.knight Connor M.Gautam Colton R.Stoner Bryan V.Egner joseph R.Smith Chris M.Orban juan j.Manfredi kyle D.Frische Michael L.dexter Enam A.Chowdhury Anil k.Patnaik department of Engineering Physics Air Force Institute of TechnologyWPAFBOHUSA Physics department Marietta CollegeMariettaOHUSA department of Physics The Ohio State UniversityColumbusOHUSA department of Materials Science and Engineering and Department of Electrical and Computer ScienceThe Ohio State UniversityColumbusOHUSA Intense Energy Solutions LLCPlain CityOHUSA

We present detailed characterization of laser-driven fusion and neutron production(-10^(5)/second) using 8 mj, 40 fs laser pulses on a thin(<1 μm) D_2O liquid sheet employing a measurement suite. At relativistic inte... 详细信息

We present detailed characterization of laser-driven fusion and neutron production(-10^(5)/second) using 8 mj, 40 fs laser pulses on a thin(kHz), the system produces deuterium±deuterium(D-D) fusion, allowing for consistent neutron generation. Evidence of D-D fusion neutron production is verified by a measurement suite with three independent detection systems: an Ej-309 organic scintillator with pulse-shape discrimination, a ~3He proportional counter and a set of 36 bubble detectors. Time-of-flight analysis of the scintillator data shows the energy of the produced neutrons to be consistent with 2.45 MeV. Particle-in-cell simulations using the WarpX code support significant neutron production from D-D fusion events in the laser±target interaction region. This high-repetition-rate laser-driven neutron source could provide a low-cost, on-demand test bed for radiation hardening and imaging applications.

关键词： high-repetition-rate laser-driven fusion laser-plasma interaction liquid target neutron detectors

Low-Cost and Biodegradable Thermoelectric devices Based on van der Waals Semiconductors on Paper Substrates

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Energy & Environmental Materials 2024年第1期7卷 201-206页

作者： Gulsum Ersu Carmen Munuera Federico j.Mompean Daniel Vaquero jorge Quereda joão Elias F.S.Rodrigues jose A.Alonso Eduardo Flores jose R.Ares Isabel j.Ferrer Abdullah M.Al-Enizi Ayman Nafady Sruthi kuriakose joshua O.Island Andres Castellanos-Gomez Materials Science Factory Instituto de Ciencia de Materiales de Madrid(ICMM-CSIC)Madrid E-28049Spain Nanotechnology Group USAL-NanolabUnivesidad de SalamancaSalamanca Junta de Castilla y León 37007Spain GISC Departamento de Física de MaterialesUniversidad Complutense de MadridMadrid E-28040Spain departamento de Física Aplicada Centro de Investigación y Estudios AvanzadosMérida 97310Mexico MIRE Group Departamento de Física de MaterialesUniversidad Autónoma de MadridMadrid E-28049Spain Instituto Nicolás Cabrera Universidad Autónoma de MadridMadrid E-28049Spain department of Chemistry College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia department of Physics and Astronomy University of Nevada Las VegasLas Vegas NV 89154USA

We present a method to fabricate handcrafted thermoelectric devices on standard office paper *** devices are based on thin films of WS_(2),Te,and BP(P-type semiconductors)and TiS_(3)and TiS_(2)(N-type semiconductors),deposited by simply rubbing powder of these materials against *** thermoelectric properties of these semiconducting films revealed maximum Seebeck coefficients of(+1.32±0.27)mV k^(-1)and(-0.82±0.15)mV k^(-1)for WS_(2)and TiS_(3),***,Peltier elements were fabricated by interconnecting the P-and N-type films with graphite electrodes.A thermopower value up to 6.11 mV k^(-1)was obtained when the Peltier element were constructed with three *** findings of this work show proof-of-concept devices to illustrate the potential application of semiconducting van der Waals materials in future thermoelectric power generation as well as temperature sensing for low-cost disposable electronic devices.

关键词： paper-based electronics Seebeck effect semiconductors thermoelectrics van der Waals materials

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纳武单抗联合化疗或伊匹单抗治疗胃食管癌

中国临床药理学杂志 2024年第13期40卷 1887-1887页

作者： SHITARA k AjANI j A MOEHLER M 吴焕贤

引自:SHITARA k,AjANI j A,MOEHLER M,et *** plus chemotherapy or ipilimumab in gastro-oesop-hageal cancer[j].Nature,2022,603(7903):942-948.标准的一线化疗导致大多数人表皮生长因子受体2(human epidermal growth factor receptor 2,HER2)阴性胃食管腺癌患者在一年内疾病进展和死亡。在一项随机、全球3期试验[CheckMate649,程序性死亡配体-1(programmed death ligand-1,PD-L1)阳性评分≥5分且所有患者随机分组]中。

关键词：人表皮生长因子受体2 联合化疗一线化疗食管腺癌单抗治疗疾病进展 chemotherapy death

decentralized damage diagnostic technique for tall buildings using VARMAX model

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Earthquake Engineering and Engineering Vibration 2022年第2期21卷 417-439页

作者： k.Lakshmi j.Prawin CSIR-Structural Engineering Research Centre CSIR RoadChennai 600113Tamil NaduIndia

Civil infrastructure,especially buildings,are becoming more slender,tall,and multipurpose,creating a need to continuously monitor their health to ensure the safety and security of human lives and *** the majority of structural health monitoring techniques use measurements from the entire structure,in this study,an output-only damage diagnostic technique using a decentralized concept(subdomain-based)for tall buildings and employing a vector form of the autoregressive moving average with exogenous input(VARMAX)model is proposed,which offers reduced instrumentation and data handling *** other decentralized approaches,this technique predicts more than one DOF at a time so the number of subdomains required for the diagnosis of the complete structure is *** proposed subdomain-based damage diagnostic algorithm works with ambient loads and does not require any correlated numerical models since it is solely based on measured *** proposed algorithm can identify the time instant of damage,spatial location(s)and characterize the damage *** have been made to account for confounding factors such as environmental and operational variabilities separate from measurement noise to avoid false positive *** effectiveness of the proposed technique is illustrated using synthetic time history responses from a twenty-story framed structure under ambient loading and an experimental study on a ten-story framed *** numerical and experimental investigations confirm the effectiveness of the method and its robustness to environmental/operational variabilities and measurement noise.

关键词： structural health monitoring subdomain high-rise buildings shear-type buildings VARMAX model environmental and operational variability measurement noise

基于MRI的影像组学模型预测保乳术后乳腺癌病人手术切缘状态并推断肿瘤免疫微环境：一项多中心验证研究

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国际医学放射学杂志 2024年第3期 374-375页

作者： j.Ma k.Chen S.Li L.Zhu Y.Yu j.Li 梁媛

摘要目的术前准确评估保乳手术切缘阳性的风险，有助于制定手术计划。该项多中心验证研究开发了一种基于MRI的影像组学模型来预测手术切缘状态。方法回顾性

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Dixon MRI对健康成年人背部伸肌年龄和性别相关变异的多参数定量评估

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国际医学放射学杂志 2024年第2期 247-248页

作者： P.Z.Chen Z.Zhou L.Sun X.k.Yu k.Li j.Li 王俊

摘要目的使用Dixon MRI研究健康成人年龄相关性背伸肌退变的性别差异，并分析肌肉定量参数与背肌力的关系。方法纳入105名健康受试者行腰椎Dixon MRI检查。量

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Fast Spreading of Liquid SnPb Solder on Gold-coated Copper Wheel Pattern

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journal of Materials Science & Technology 2010年第12期26卷 1143-1147页

作者： Wei Liu Lei Zhang k.j. Hsia j.k. Shang Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China department of Mechanical Science and Engineering University of Illinois at Urbana-Champaign Urbana IL 61801 USA department of Materials Science and Engineering University of Illinois at Urbana-Champaign Urbana IL 61801 USA

The reactive Sn63Pb37 spreading on patterned film structures was examined in a reducing atmosphere （H2 5%＋Ar 95%）. Liquid solder spreading was observed to follow the wheel pattern made of Au/Cu thin film. At the center, a liquid cap was formed around the hub by viscous spreading of the liquid front. Ahead of the main viscous flow front, a liquid film was found to be extended on thin Au-Cu lines at a fast rate to a great distance by rapid Sn-Au chemical reaction.

关键词： Wetting Reactive wetting Spreading Solder Thin film pattern Liquid film

Sensorless control for hysteresis compensation of AFM scanner by modified Rayleigh model

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journal of Central South University 2010年第6期17卷 1243-1246页

作者： PARk j k MOON W k department of Mechanical Engineering Changwon National UniversityChangwon 641-773Korea department of Mechanical Engineering Pohang Unive rsity of Science and TechnologyPohang 790-784Korea

A novel modified Rayleigh model was developed for compensating hysteresis problem of an atomic force microscope(AFM) *** high driving fields,piezoelectric actuators that integrated a scanner have severe hysteresis,which can cause serious displacement *** hysteresis is from various origins including movement of defects,grain boundary effects,and displacement of ***,because its characteristic is stochastic,it is almost impossible to predict the piezoelectric hysteresis ***,it was predicted phenomenologically,which means that the relationship between inputs and outputs is *** typical phenomenological approach is the Rayleigh ***,the model has the discrepancy with experiment result as the fields *** overcome the demerit of the Rayleigh model,a modified Rayleigh model was *** the modified Rayleigh model,each coefficient should be defined differently according to the field direction due to the increase of the asymmetry in the high *** applying an inverse form of this modified Rayleigh model to an AFM scanner,it is proved that hysteresis can be compensated to a position error of less than 5%.This model has the merits of reducing complicated fitting procedures and saving computation time compared with the Preisach model.

关键词： piezoelectric stack actuator hysteresis compensation Rayleigh model atomic force microscopy

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电化学沉积含锂离子的钙磷陶瓷涂层

电化学沉积含锂离子的钙磷陶瓷涂层