检索结果-南通市图书馆

Development of Nanostructured Antireflection Coatings for EO/IR Sensor and Solar Cell Applications

在线全文

学校读者我要写书评

暂无评论

Materials Sciences and Applications 2012年第9期3卷 633-639页

作者： Ashok K. sood Adam W. sood Roger E. Welser Gopal G. Pethuraja Yash R. Puri Xing Yan David j. Poxson jaehee Cho E. Fred Schubert Nibir K. Dhar Dennis L. Polla Pradeep Haldar jennifer L. Harvey College of Nanoscale Science and Engineering Albany USA Department of Electrical and Computer Systems Engineering and Physics Rensselaer Polytechnic Institute Troy USA Magnolia Solar Inc. Albany USA Microsystems Technology Office of the Defense Advanced Research Projects Agency Arlington USA New York State Energy Research and Development Authority Albany USA.

Electro-optical/infrared (EO/IR) sensors and photovoltaic power sources are being developed for a variety of defense and commercial applications. One of the critical technologies that will enhance both EO/IR sensor and photovoltaic module performance is the development of high quality nanostructure-based antireflection coatings. In this paper, we review our work on advanced antireflection structures that have been designed by using a genetic algorithm and fabricated by using oblique angle deposition. The antireflection coatings are designed for the wavelength range of 250 nm to 2500 nm and an incidence angle between 00 and 400. These nanostructured antireflection coatings are shown to enhance the optical transmission through transparent windows over a wide band of interest and minimize broadband reflection losses to less than one percent, a substantial improvement over conventional thin-film antireflection coating technologies.

关键词： Antireflection Coating Nanostructured Layer Oblique Angle Deposition Silicon Dioxide Broadband Omni-Directional

Clinical outcomes of patients with two small hepatocellular carcinomas

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World journal of Hepatology 2021年第10期13卷 1439-1449页

作者： Anh Duy Pham Karl Vaz Zaid S Ardalan Marie Sinclair Ross Apostolov Sarah Gardner Ammar Majeed Gauri Mishra Ning Mao Kam Kurvi Patwala Numan Kutaiba Niranjan Arachchi Sally Bell Anouk T Dev john S Lubel Amanda j Nicoll Siddharth sood William Kemp Stuart K Roberts Michael Fink Adam G Testro Peter W Angus Paul j Gow The Victorian Liver Transplant Unit Austin HealthHeidelberg 3084VictoriaAustralia Department of Gastroenterology Alfred HealthMelbourne 3000VictoriaAustralia The Melbourne Liver Group Melbourne 3000VictoriaAustralia The University of Melbourne Parkville 3010VictoriaAustralia Central Clinical School Monash UniversityMelbourne 3004VictoriaAustralia Department of Gastroenterology and Hepatology Monash HealthClayton 3168VictoriaAustralia Department of Radiology Austin HealthHeidelberg 3084VictoriaAustralia Department of Radiology Eastern HealthBox Hill 3128VictoriaAustralia Department of Gastroenterology Western HealthFootscray 3011VictoriaAustralia Department of Gastroenterology Eastern HealthBox Hill 3128VictoriaAustralia Department of Gastroenterology Royal Melbourne HospitalParkville 3050VictoriaAustralia

BACKGROUND Management of single small hepatocellular carcinoma(HCC)is straightforward with curative outcomes achieved by locoregional therapy or *** transplantation is often considered for multiple small or single large *** of two small HCC whether presenting synchronously or sequentially is less *** To define the outcomes of patients presenting with two small *** Retrospective review of HCC databases from multiple institutions of patients with either two synchronous or sequential HCC≤3 cm between january 2000 and March *** outcomes were overall survival(OS)and transplant-free survival(TFS).RESULTS 104 patients were identified(male n=89).Median age was 63 years(interquartile range 58-67.75)and the most common aetiology of liver disease was hepatitis C(40.4%).59(56.7%)had synchronous HCC and 45(43.3%)had sequential.36 patients died(34.6%)and 25 were transplanted(24.0%).1,3 and 5-year OS was 93.0%,66.1% and 62.3% and 5-year post-transplant survival was 95.8%.1,3 and 5-year TFS was 82.1%,45.85% and 37.8%.When synchronous and sequential groups were compared,OS(1,3 and 5 year synchronous 91.3%,63.8%,61.1%,sequential 95.3%,69.5%,64.6%,P=0.41)was similar but TFS was higher in the sequential group(1,3 and 5 year synchronous 68.5%,37.3% and 29.7%,sequential 93.2%,56.6%,48.5%,P=0.02)though this difference did not remain during multivariate *** TFS in patients presenting with two HCC≤3 cm is poor regardless of the timing of the second *** patients presenting with two small HCC should be considered for transplantation.

关键词： Hepatocellular carcinoma Liver cancer Prognosis Transplantation Transplant-free survival

Current-Voltage Characteristics of ITO/p-Si and ITO/n-Si Contact Interfaces

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Materials Physics and Chemistry 2012年第2期2卷 59-62页

作者： Gopal G. Pethuraja Roger E. Welser Ashok K. sood Changwoo Lee Nicholas j. Alexander Harry Efstathiadis Pradeep Haldar jennifer L. Harvey College of Nanoscale Science and Engineering Albany USA Magnolia Solar Incorporated Albany USA Magnolia Solar Incorporated Woburn USA New York State Energy Research and Development Authority Albany USA ollege of Nanoscale Science and Engineering Albany USA

We investigated the electrical contact characteristics of indium tin oxide (ITO)/doped hydrogenated amorphous silicon (a-Si:H) junctions. For efficient collection of photo-generated carriers, photovoltaic and photodetector devices require good ohmic contacts with transparent electrodes. The amorphous-Si thin films were sputter deposited on ITO coated glass substrates. As-deposited p-type a-Si:H on ITO formed nearly ohmic type contacts and further annealing did not improve the contact characteristics. On the other hand, as-deposited n-type a-Si:H on ITO formed an ohmic contact, while further annealing resulted in a Schottky type contact. The ITO contact with p-type silicon semiconductor is a ro-bust ohmic contact for Si based optoelectronic devices.

关键词： Sputtered Amorphous Silicon Electrical Contact Characteristics ITO/Si Contact

Effect of Ge Incorporation on Bandgap and Photosensitivity of Amorphous SiGe Thin Films

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Materials Sciences and Applications 2012年第2期3卷 67-71页

作者： Gopal G. Pethuraja Roger E. Welser Ashok K. sood Changwoo Lee Nicholas j. Alexander Harry Efstathiadis Pradeep Haldar jennifer L. Harvey 不详

We investigated the structural and optical properties of amorphous-SiGe thin films synthesized via a low-cost, high-growth rate deposition method. Films were formed by e-beam evaporation of mixed pellets of Si and Ge. Film composition was varied by changing the weight ratio of Si and Ge pellets mixture. Films were amorphous with a composition uniform. Ge-rich films are in tensile stress, while Si-rich films are in compressive stress. As the Ge fraction increases (from 22 at.% to 94 at.%), the optical bandgap decreases (from 1.7 eV to 0.9 eV) and the photosensitivity of the films extends into IR band of solar spectrum. By changing the weighted ratio of the evaporation source mixture, the bandgap and optical sensitivity of a-SiGe films can be easily tuned. Our studies prove that a-SiGe films are a tunable absorber. This can be used for photo-detector, photovoltaic and microelectronic applications to extend the spectral response.

关键词： A-Si1–xGex Thin Films Structural Properties Optical Properties Compositional Effect Bandgap Tuning

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

3D集成中晶圆键合缺陷的成像检测

集成电路应用 2009年第11期26卷 38-40,F0003页

作者： Shari Farrens Sumant sood Ray Thomas Wafer Bonder Division SonoLab Manager Sonoscan Inc.

本文介绍了一种实用的声学成像技术，可以在键合晶圆对的同时，对界面缺陷以及不同材料的晶圆划痕进行成像检测。

关键词：成像技术界面缺陷晶圆检测集成 3D 链

金猫尾草和木豆引种及刈割次数对天然草地产量的影响

在线全文

学校读者我要写书评

暂无评论

国外畜牧学（草原与牧草） 1994年第2期 40-41页

作者：于爱萍金海 B.R.sood VK Sharma

为了研究引种金猫尾草和木豆对Kangra流域天然草地生产状况和产量的影响,1988～1990年进行了试验。同原有狗尾草的草地相比(28.0t/ha),引种金猫尾草和木豆使青草产量最高达到35.1t/hm^2。这两种草是作为天然牧草同时引种的。收木豆0.62t... 详细信息

为了研究引种金猫尾草和木豆对Kangra流域天然草地生产状况和产量的影响,1988～1990年进行了试验。同原有狗尾草的草地相比(28.0t/ha),引种金猫尾草和木豆使青草产量最高达到35.1t/hm^2。这两种草是作为天然牧草同时引种的。收木豆0.62t,可相当***^2青草,其产量比原生草地多收青草13.5t/hm^2;质量上,与对照相比,引种金猫尾草表现出粗蛋白和矿物质含量高,而细胞壁成分低。从割次数看,刈割3次的以1、2次的产量高,质量好,而且饲草成分合理。

关键词：草地产量金猫尾草木豆刈割

雾化吸入PGE1:新生儿血氧不足Ⅰ或Ⅱ型呼吸衰竭选择性肺血管扩张的临床试验

在线全文

学校读者我要写书评

暂无评论

世界核心医学期刊文摘（儿科学分册） 2005年第2期1卷 58-59页

作者： sood B.G. Delaney-Black V. Aranda j.V. Shankaran S. 虎小毅 Dr.Children's Hospital of Michigan3901 Beaubien Boulevard DetroitMI 48201United States

对20例伴有血氧不足呼吸衰竭及氧合指数大于20的足月/接近足月的新生儿进行Ⅰ或Ⅱ期的PGE1(IPGE1)吸入的可行性、安全性及剂量增加研究。对13例新生儿使用喷雾器持续2h增加剂量吸入IPGE1,间隔1h吸入一氧化氮(第1组)。

关键词：新生儿血 PGE1 雾化吸入 Ⅱ型呼吸衰竭氧合指数临床试验肺血管体外膜肺氧合动脉血氧分压氧合状态

静脉血栓栓塞症的抗血栓治疗：美国《胸科学》杂志指南

在线全文

学校读者我要写书评

暂无评论

中国全科医学 2016年第9期19卷 989-990页

作者： Kearon C Akl EA Ornelas j Blaivas A jimenez D Bounameaux H Huisman M King CS MorrisT sood N Stevens SM Vintch jRE Wells P Woller SC Moores CL 本刊编辑部机构不详

包括深静脉血栓和肺栓塞在内的静脉血栓栓塞症是癌症患者的主要并发症,发生率为4%~20%,并且是常见的潜在致命性急症。本文介绍了美国《胸科学》杂志指南中VET的抗血栓治疗的部分内容,其以第9版《美国胸内科医师学会循证临床实践指南》... 详细信息

包括深静脉血栓和肺栓塞在内的静脉血栓栓塞症是癌症患者的主要并发症,发生率为4%~20%,并且是常见的潜在致命性急症。本文介绍了美国《胸科学》杂志指南中VET的抗血栓治疗的部分内容,其以第9版《美国胸内科医师学会循证临床实践指南》中的《静脉血栓栓塞症的抗血栓治疗：抗血栓治疗和阻止血栓形成》一文为参照,基于静脉血栓栓塞症治疗的Ⅲ期试验的发表年份,对口服抗凝剂（达比加群、利伐沙班、阿哌沙班、依度沙班）进行先后阐述（但是这一排序并不是指南专家组对药剂的优劣排序）,以为临床医生提供参考。

关键词：静脉血栓栓塞纤维蛋白溶解药抗凝药指南

A Validated Model for the Imaging Diagnosis of Cystic Lung Disease

在线全文

学校读者我要写书评

暂无评论

Open journal of Radiology 2023年第1期13卷 42-57页

作者： Wallace T. Miller Karen C. Patterson Shweta sood james E. Schmitt Arshad A. Wani Robert Borden Maya Galperin-Aisenberg Mary K. Porteus Michelle L. Hershman Michael Hewitt jennifer Levy Victor D. Babatunde Tetiana Glushko Timothy j. Niesen Sergey Leshchinskiy Karine Sahakyan Keyur Desai jennifer A. Gillman Sandeep Reddy Michael Shriver Nathaniel B. Linna Abass M. Noor Aysenur Buz Matthew E. Biron Scott Simpson Department of Radiology University of Botswana Gaborone Botswana Department of Medicine Perelman School of Medicine University of Pennsylvania Philadelphia USA Brighton and Sussex Medical School Brighton England Department of Radiology Perelman School of Medicine University of Pennsylvania Philadelphia USA Department of Radiologic Sciences Drexel University College of Medicine Philadelphia USA Department of Radiology Mercy Catholic Medical Center Philadelphia USA Department of Diagnostic Imaging School of Alpert Medical Brown University Providence USA Department of Radiology Goztepe Research and Training Hospital Istanbul Medeniyet University Istanbul Türkiye

Rationale and Objectives: Cystic lung disease may be accurately diagnosed by imaging interpretation of specialist radiologists, without other information. We hypothesized that with minimal training non-specialists could perform similarly to specialist physicians in the diagnosis of cystic lung disease. Methods: 72 cystic lung disease cases and 25 cystic lung disease mimics were obtained from three sources: 1) a prospective acquired diffuse lung disease registry, 2) a retrospective search of medical records and 3) teaching files. Cases were anonymized, randomized and interpreted by 7 diffuse lung disease specialists and 15 non-specialist radiologists and pulmonologists. Clinical information other than age and sex was not provided. Prior to interpretation, non-specialists viewed a short PDF training document explaining cystic lung disease interpretation. Results: Correct first choice diagnosis of 85%-88% may be achieved by high-performing specialist readers and 71%-80% by non-specialists and lower-performing specialists, with mean accuracies in the diagnosis of LAM (91%, p Conclusion: With specific but limited training, non-specialist physicians can diagnose cystic lung diseases from CT appearance alone with similar accuracy to specialists, correctly identifying approximately 75% of cases.

关键词： Lymphangioleiomyomatosis Histiocytosis Langerhans-Cell Idiopathic Interstitial Pneumonias Birt-Hogg-Dube Syndrome Lung Diseases Interstitial Diagnoses Differential