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A Study of 2D Assist Feature Placement

Journal of Microelectronic manufacturing 2020年第1期3卷 23-26页

作者： Liang Zhu barry ma Lin Shen Kevin Beaudette Synopsys Inc. 1027 ChangNing RoadShanghaiChina200050 Synopsys Inc. One Antares DriveSuite 300NepeanCanada

Sub-resolution assist features have been widely recognized in lithography patterning. Ingeneral, the insertion of assist features in optically adjacent space around main designed features,will change the aerial image intensity profiles of corresponding main features. Optimizing assistfeature placement lets the main feature obtain optimal or better image contrast, better imagingresolution and depth of focus (DOF). Recent EUV lithography development, however, imposesstrict budget of edge placement error and process window control causing assist features tobecome more and more complex. In this domain, 1D assisting feature can no longer meet suchtight requirements, and 2D assisting features have become necessary in the semiconductor *** this paper, the process window and edge placement error evaluations of different 2D assistfeature types are reviewed, along with their associated run time and memory consumption. Varioustypes of 2D assist features are evaluated, including 45-degree disconnected assist features, 45-degree connected assisting features, manhattan only assist feature arrays, and so on. To generatethe assist features, the model-based assisting feature rule table is first generated using the opticalmodel as the reference. The rule table is then split into different rule sets by considering thedimensions and types of assisting features. Finally, the CD variations across process window areevaluated as the success criteria of each assist feature rule sets. In addition, an inverse lithographytechnology (ILT) based approach is proposed to generate the optimized rule table, as ILT is wellknown to have considerable benefits in finding the best pattern solutions to improve processwindow, 2D CD control, and resolution in the low K1 lithography regime. At the end of this paper,the summary discusses how the assisting feature placement can be further optimized using leadingedgetechnologies like machine learning.

关键词： Assist Feature Inverse Lithography Technology Low K1 Lithography machine Learning

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华南至东南亚沿海全新世环境演变与史前农业

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科学通报 2024年第18期69卷 2553-2567页

作者：郑卓马婷汤永杰 barry V.Rolett 宗永强黄康有万秋池陈聪张潇陈碧珊张绍轩中山大学地球科学与工程学院珠海519080 南方海洋科学与工程广东省实验室珠海519080 北京师范大学地表过程与资源生态国家重点实验室珠海基地珠海519087 Department of Anthropology University of Hawai'i at ManoaHawaii 96822USA 香港大学地球科学系中国香港999077 岭南师范学院地理科学学院湛江524048

华南至东南亚沿海地区新石器时期稻作农业的出现并成为主要经济形态显著滞后于长江下游.然而,对于制约华南沿海早期农业扩张的原因存在争议,而且一直以来缺少将考古证据与海岸带沉积与地貌演变的自然过程进行对比.本研究利用全新世孢粉... 详细信息

华南至东南亚沿海地区新石器时期稻作农业的出现并成为主要经济形态显著滞后于长江下游.然而,对于制约华南沿海早期农业扩张的原因存在争议,而且一直以来缺少将考古证据与海岸带沉积与地貌演变的自然过程进行对比.本研究利用全新世孢粉记录集成,结合沿海地区钻孔古环境数据集,探讨了华南至东南亚地区沿海平原的全新世沉积过程与时空演变特征,并对沉积孢粉记录进行了集成.研究区的时空对比表明,以丘陵海岸为主的华南沿海地区在中全新世因海平面上升和海侵作用,海岸线深入陆地丘陵边缘.从6~5 ka BP之后,沉积体系开始从海相为主过渡到陆相的沉积环境,但该时期的海岸带平原土地仍较狭窄,有限的可耕种土地限制了稻作农业的发展空间.虽然在一些南方的考古遗址中发现了5~4 ka BP的水稻相关遗存,但总体揭示的经济形态仍停留在采集、渔猎为主的范畴.三角洲的演变从4 ka BP开始,进入陆地扩张和湿地面积显著增加的阶段,大部分河口湿地和沿海陆地平原逐渐形成一定的规模.尤其在2.5 ka BP之后,三角洲进积作用使平原面积加速扩大,其快速变化与花粉记录指示的稻作农业发展阶段呈现高度的耦合.特别是秦汉前后大规模的农业人口南迁,新的移民带来了先进的集约化水稻种植农业技术,进一步促进了该地区水稻农业的快速发展,并加大了刀耕火种对森林的破坏和引发严重的水土流失.此外,从沿海平原到丘陵山地的早期农业发展也存在滞后现象.本研究揭示了华南和东南亚沿海地区海岸带平原的形成阶段与农业发展过程是基本同步的,印证了人类文明发展与自然环境变化相互制约与依存的人-地关系.

关键词：全新世新石器时代孢粉分析海岸线演变史前农业华南-东南亚

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WHAT I LEARNED FROM BRITTON CHANCE

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Journal of Innovative Optical Health Sciences 2011年第3期4卷 223-226页

作者： barry R.maSTERS Department of the History of Science Harvard UniversityCambridgeMA 02138USA Department of Biological Engineering Massachusetts Institute of Technology CambridgeMA 02139USA

In this personal and reflective article,I honor the memory of Britton Chance and explain how his mentorship during my tenure at the Johnson Research Foundation greatly impacted my scientific career.I emphasize the critical role of mentors on the development of scientists and present some wonderful and remarkable attributes that characterized Britton Chance's scientific and personal style.

关键词： Britton Chance mentorship scientific attributes and style

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Second generation biorefining in Ecuador:Circular bioeconomy,zero waste technology,environment and sustainable development:The nexus

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Journal of Bioresources and Bioproducts 2021年第2期6卷 83-107页

作者： Lourdes M.Orejuela-Escobar Andrea C.Landázuri barry Goodell Universidad San Francisco de Quito USFQ Colegio de Ciencias e IngenieríasInstituto de Ingeniería CircularEngineeringApplied Sciences&Simulation Group(GICAS)Chemical Engineering DepartmentDiego de Robles y Vía InteroceánicaP.O.Box 17-0901QuitoEcuador Universidad San Francisco de Quito USFQ Instituto de Investigaciones Biológicas y Ambientales BIÓSFERADiego de Robles y Vía InteroceánicaP.O.Box 17-0901QuitoEcuador University of massachusetts Department of MicrobiologyAmherstMA 01003United States

The projection of world population growth with concurrent generation of large volumes of agroindustrial waste that negatively affect the environment is of great ***,this review article describes the nexus between concepts of Circular Bioeconomy,Zero Waste Technology,Sustainable Development,Biorefineries,and alternatives and research efforts to generate less environmental impact.A brief analysis of the Ecuadorian industry and exports is described,emphasizing the fact that,to improve the Ecuadorian trade balance,it is necessary to increase industrial *** is important to have emerging technologies and innovation in order to promote the replacement of fossil-derived raw materials with renewable raw materials and develop more environmentally friendly processes and *** paper analyses the state of biomass research and its transformation in Ecuador,together with current pretreatment research on biomass to obtain bioproducts and biofuels in a biorefinery that promotes clean production for the extraction of phytochemicals using green solvents,such as deep eutectic solvents;and technologies to recover high-value added materials with enhanced *** conclusion,the need to develop technologies and markets to commercialize high value-added products coming from biorefineries is highlighted,as this will increase the income both in rural and urban areas and will strengthen the productivity and profitability of the Ecuadorian *** goal through this analysis is to improve Ecuador’s trade balance while also contributing to the circular bioeconomy that promotes sustainable development.

关键词： Biorefinery Circular bioeconomy Agro-industrial by-products High-added-value products Sustainable development

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Current Source Converter Based Multi-terminal DC Wind Energy Conversion System

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电力系统自动化 2013年第11期37卷 13-19页

作者： Shixiong FAN Guangyi LIU Zhanyong YANG Weiwei ma B.W.WILLIAMS China Electric Power Research Institute Beijing 100192 China State Grid Smart Grid Research Institute Beijing 102200 China Department of Electronic and Electrical Engineering Strathclyde University Glasgow G1 1XW UK

A current source converter based multi-terminal direct current(DC)wind energy conversion system(WECS)is *** current source DC/DC converter is adopted to connect a wind turbine to an inverter with maximum power point *** turbine is associated with a DC source by parallel-connected to a common DC *** DC power collection,a current source inverter(CSI)using gate turn-off components is used for the grid connection due to its flexible reactive power control and short circuit protection *** such a parallel connection configuration,the CSI operates in an input voltage control mode,which maintains the DC link voltage *** dynamic responses of combined mechanical and electrical systems are investigated with three different operation *** and experimental results demonstrate the feasibility and stability of the current source DC/DC converter based multi-terminal DC WECS.

关键词：直流母线电压风能转换系统电流源型多终端变频器 DC变换器无功功率控制电流源逆变器

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Unifying the Software Process Spectrum

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软件学报 2006年第4期17卷 649-657页

作者： Mingshu Li barry W. Boehm Leon J. Osterweil State Key Lab of Computer Science and Lab. for Internet Software Technologies Institute of Software at Chinese Academy of Sciences Beijing 100080 China University of Southern California CA 90089-0781 USA University of massachusetts Amherst Amherst MA 01003 USA

Software Process Workshop (SPW 2005) was held in Beijing on may 25-27, 2005. This paper introduces the motivation of organizing such a workshop, as well as its theme and paper gathering and review; and summarizes the main content and insights of 11 keynote speeches, 30 regular papers in five sessions of “Process Content”, “Process Tools and Metrics”, “Process management”, “Process Representation and Analysis”, and “Experience Reports”, 8 software development support tools demonstration, and the ending panel “Where Are We Now? Where Should We Go Next?”.

关键词：软件处理微处理宏处理过程表征

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Assessment of compatibility of rhlGF-1/rhlGFBP-3 with neonatal intravenous medications

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World Journal of Pediatrics 2023年第1期19卷 58-67页

作者： Nazila Salamat-Miller mark A.Turner Amey Bandekar Nitin Dixit Emily Jochim barry mangum Christopher McPherson Srini Tenjarla Sukhjeet Singh You Seok Hwang Norman Barton Takeda 200 Shire WayLexingtonMA 02421USA Institute of Translational Medicine University of LiverpoolLiverpoolUK Paidion Research DurhamNCUSA Washington University St.LouisMOUSA

Background Recombinant human(rh)IGF-1/IGFBP-3 protein complex,administered as a continuous intravenous infusion in preterm infants,is being studied for the prevention of complications of *** We conducted in vitro studies to evaluate the physical and chemical compatibility of rhIGF-1/IGFBP-3 with medications routinely administered to preterm *** vitro mixing of rhIGF-1/IGFBP-3 drug product with small-molecule test medications plus corresponding controls was *** compatibility was defined as no color change,precipitation,turbidity,gas evolution,no clinically relevant change in pH/osmolality or loss in medication *** compatibility of small molecules was assessed using liquid chromatography(e.g.,reverse-phase HPLC and ion chromatography),with incompatibility defined as loss of concentration of≥10%.A risk evaluation was conducted for each medication based on in vitro compatibility data and potential for chemical *** In vitro physical compatibility was established for 11/19 medications:caffeine citrate,fentanyl,fluconazole,gen-tamicin,insulin,intravenous fat emulsion,midazolam,morphine sulfate,custom-mixed parenteral nutrition solution(with/without electrolytes),parenteral nutrition solution+intravenous fat emulsion,and vancomycin(dosed from a 5 mg/mL solu-tion),but not for 8/19 medications:amikacin,ampicillin,dopamine,dobutamine,furosemide,meropenem,norepinephrine,and penicillin G,largely owing to changes in pH after ***-molecule compatibility was unaffected post-mixing,with no loss of small-molecule *** physically compatible medications,risk analyses confirmed low probability and severity of a risk *** Co-administration of rhIGF-1/rhIGFBP-3 drug product with various medications was assessed by in vitro studies using case-by-case risk analyses to determine the suitability of the products for co-administration.

关键词： Chemical compatibility Intravenous Neonatal Physical compatibility rhIGF-1/rhIGFBP-3

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A COMPLETE COMPOSITE GTO MODEL FOR CIRCUIT SIMULATIONS

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Journal of Electronics(China) 1998年第2期15卷 130-137页

作者： barry W. Williams Dept. of Computing & Electrical Eng. Heriot-Watt University Edinburgh EH14 4AS U. K.

The paper presents a complete composite gate turn-off thyristor (GTO) model, which is based on the combination of the p-n-p and n-p-n transistor models. PSpice simulations and parametric sensitive analysis are performed with the complete composite model and calculated results are given, which show that it corresponds statically and dynamically with the practical device. In particular, the GTO gate dynamical characteristics in practical circuits are discussed and experimental results are included.

关键词： GTO Simulation Model

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Application of Ostrich Antibodies to the Restoration of Hair Growth, a Preliminary and Case Report

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Journal of Cosmetics, Dermatological Sciences and Applications 2018年第4期8卷 179-184页

作者： Yasuhiro Tsukamoto barry Hendler Stuart Greenberg Department of Animal Sciences Graduate School of Environmental & Biological Sciences Kyoto Prefecture University Kyoto Japan Microfollicular Hair Transplantation Ambler PA USA Clinical Studies OstriGen Holdings West Newton MA USA

The hormone dihydrotestosterone (DHT) and the catalyst 5α-reductase play very important roles in the hair loss due to androgenetic alopecia (AGA). Recently, some chemicals against these hormones have been commercialized as therapeutics for AGA. In the present study, we have attempted to find out the potential effects of antibodies on AGA therapeutics as an inhibitor of androgenic hormones. The immune system of the ostrich is believed to be the most versatile and powerful of any animal on the planet, and antibodies derived from the ostrich egg yolk are now being developed for a wide range of diseases and ailments. Ostrich antibodies against DHT and 5α-reductase have been produced and combined with antibodies against harmful skin bacteria to restore normal hair growth in AGA cases. Preliminary testing with six volunteer subjects showed that ostrich antibodies were clearly quite effective in hair regrowth.

关键词： Alopecia AGA Ostrich Antibody

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白垩纪以来米仓山—汉南穹窿剥蚀过程及其构造意义:磷灰石裂变径迹的证据

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地球物理学报 2010年第4期53卷 920-930页

作者：田云涛朱传庆徐明饶松 barry P.Kohn 胡圣标中国科学院地质与地球物理研究所岩石圈演化国家重点实验室北京100029 澳大利亚墨尔本大学地球科学学院

报道了米仓山—汉南穹窿一带磷灰石裂变径迹分析结果,以制约该区白垩纪以来的剥蚀-演化历史.露头样品磷灰石裂变径迹年龄分布显示从汉南穹窿南部的核部地区向南至四川盆地北部裂变径迹的年龄逐渐变新,这与米仓山地区逆冲断裂以背驮式扩... 详细信息

报道了米仓山—汉南穹窿一带磷灰石裂变径迹分析结果,以制约该区白垩纪以来的剥蚀-演化历史.露头样品磷灰石裂变径迹年龄分布显示从汉南穹窿南部的核部地区向南至四川盆地北部裂变径迹的年龄逐渐变新,这与米仓山地区逆冲断裂以背驮式扩展的构造样式从汉南穹窿向南经米仓山褶皱-逆冲带发育到四川盆地北缘的构造模式相吻合.热模拟的结果显示米仓山汉南穹窿经历了两期快速的剥蚀,其分别发生在白垩纪(约90 ma之前)和15 ma以来.研究区白垩纪的快速剥蚀反映了秦岭大别造山带白垩纪的区域性剥蚀事件,这可能是对临区诸多构造事件(如西伯利亚—蒙古—中朝板块的碰撞,拉萨—羌塘—思茅—印支块体的碰撞,太平洋板块向欧亚板块的俯冲及其相关的岩浆活动)远场效应的响应;约15 ma以米的快速剥蚀是对青藏高原隆升向东北方向传递的响应.

关键词：米仓山褶皱逆冲带汉南穹窿青藏高原秦岭裂变径迹

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