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1075篇 您的检索式:作者名="SageS"
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1High-efficiency,large-area,topologyoptimized metasurfaces显示文摘Metasurfaces are ultrathin optical elements that are highly promising for constructing lightweight and compact optical systems.For their practical implementation,it is imperative to maximize the metasurface efficiency.Topology optimization provides a pathway for pushing the limits of metasurface efficiency;however,topology optimization methods have been limited to the design of microscale devices due to the extensive computational resources that are required.We introduce a new strategy for optimizing large-area metasurfaces in a computationally efficient manner.By stitching together individually optimized sections of the metasurface,we can reduce the computational complexity of the optimization from high-polynomial to linear.As a proof of concept,we design and experimentally demonstrate large-area,high-numerical-aperture silicon metasurface lenses with focusing efficiencies exceeding 90%.These concepts can be generalized to the design of multifunctional,broadband diffractive optical devices and will enable the implementation of large-area,high-performance metasurfaces in practical optical systems.Thaibao Phan David Sell Evan W.Wang Sage Doshay Kofi Edee Jianji Yang Jonathan A.Fan 2019Light(Science & Applications)2019,8,1:12
2Anterior rectopexy for full-thickness rectal prolapse: Technical and functional results显示文摘AIM:To assess effectiveness, complications, recurrence rate, and recent improvements of the anterior rectopexy procedure for treatment of total rectal prolapse.METHODS:MEDLINE, Pub Med, EMBASE, and other relevant database were searched to identify studies.Randomized controlled trials, non-randomized studies and original articles in English language, with more than 10 patients who underwent laparoscopic ventral rectopexy for full-thickness rectal prolapse, with a follow-up over 3 mo were considered for the review.RESULTS:Twelve non-randomized case series studies with 574 patients were included in the review.No surgical mortality was described.Conversion was needed in 17 cases(2.9%), most often due to difficult adhesiolysis.Twenty eight patients(4.8%) presented with major complications.Seven(1.2%) mesh-related complications were reported.Most frequent complications were urinary tract infection and urinary retention.Mean recurrence rate was 4.7% with a median follow-up of 23 mo.Improvement of constipation ranged from 3%-72% of the patients and worsening or new onset occurred in 0%-20%.Incontinence improved in 31%-84% patients who presented fecal incontinence at various stages.Evaluation of functional score was disparate between studies.CONCLUSION:Based on the low long-term recurrence rate and favorable outcome data in terms of low de novo constipation rate, improvement of anal incontinence, and low complications rate, laparoscopic anterior rectopexy seems to emerge as an efficient procedure for the treatment of patients with total rectal prolapse.Jean-Luc Faucheron Bertrand Trilling Edouard Girard Pierre-Yves Sage Sandrine Barbois Fabian Reche 2015World Journal of Gastroenterology2015,21,16:7
3TP53基因突变参与成人肝脏未分化(胚胎)肉瘤的生成,不同于Wnt和端粒酶途径:3例病例的免疫组化研究及2例病例的基因相关研究Lepreux S. Rebouissou S. Le Bail B. P. Bioulac- Sage 王铮 2005世界核心医学期刊文摘(胃肠病学分册)2005,0,7:5
4Mapping rice cropping systems using Landsat-derived Renormalized Index of Normalized Difference Vegetation Index (RNDVI) in the Poyang Lake Region, China显示文摘印射在多重收割区域与光形象收割系统的米饭由于云污染和数据可获得性是挑战性的;有一个减少的数据要求的一个基于物候学的算法的开发是必要的。在这研究,规范的差别植被索引(RNDVI ) 的导出 Landsat 的重新使正常化的索引基于 NDVI 单身者并且早在珍视的二个时间的窗口被建议(或迟了) 米饭显示器逆变化,然后适用区别收割系统的米饭。波伊昂·莱克区域(PLR ) ,由收割米饭(SCR,或单个米饭) 和两倍收割米饭(DCR,包括的早米饭和迟了的米饭) 的单身者的一个典型收割系统描绘了,作为一个严峻的区域被选择。结果显示出数据在八点从 Landsat 时间系列导出到十六天俘获的那 NDVI 稻米饭的时间的发展。在 SCR 和 DCR 的 NDVI 价值相反地在变化的重叠生长时期期间有二个关键 phenological 阶段,也就是,早米饭的成熟阶段和象成熟一样的单个米饭的成长阶段近来单个米饭和成长阶段上演米饭。NDVI 在二扇时间的窗户,明确地早的 8 月和早 10 月中源于场面,被用来为区别在 PLR 的新辟的低地区域收割系统的米饭构造 RNDVI,中国。有地面真相数据的比较显示高分类精确性。RNDVI 途径由于在二个时间的窗口之间的米饭生长的差别加亮 NDVI 值的反的变化。当它仅仅需要区分候选人米饭类型是否在生长的时期,这使收割系统的米饭的辨别直接(RNDVI < 0 ) 或老朽(RNDVI > 0 ) 。Peng LI Luguang JIANG Zhiming FENG Sage SHELDON Xiangming XIAO 2016Frontiers of Earth Science2016,10,2:4
5中国和瑞典高中生学习负担与课外活动的比较研究显示文摘中学生的学习负担与课余活动受国家的经济、文化和社会发展的影响,了解国外高中生的学习负担与课余活动,对反思和改善我国高中生的学习与生活状况具有重要的借鉴意义。因此,运用问卷调查法和访谈法,对我国宁波市和瑞典隆德市高中生的学习负担与课余活动进行了调查,比较分析结果显示:两国高中生在作息时间、课内外学习、学习兴趣、作业考试、校外休闲活动和心理状态等维度上存在显著差异,亦即,我国高中生的学习负担显著高于瑞典高中生,而课余活动明显比瑞典高中生单调。陈传锋 杨娜 Janine Sages 2014湖州师范学院学报2014,36,12:2
6Collagen extracted by enzyme显示文摘SAGE H BORNSTEIN P 1982Methods in enzymology1982,82,:2
7Enhancement of cooperation between file systems and applications — VFS extensions for optimized performance显示文摘Modern operating systems incorporate an abstract layer called Virtual File System(VFS), which is positioned between user applications and real file systems to hide the differences of various file systems and to expose generic application interfaces for requesting file system services. However, VFS sometimes does not give applications an opportunity to pass information to file systems to help them make correct optimization decisions. In this paper, we review the Linux VFS, discuss its deficiencies and propose several extensions to allow applications to cooperate with the file systems more efficiently. We introduce simple prefetching interfaces and advisory flags to allow applications to communicate application-related semantics to VFS and/or the underlying file systems. These suggestions, which neither affect the semantics of applications nor modify their programming models, not only lead to simple VFS/file systems but also guide them to make correct performance-related decisions, if required. We demonstrate that these interfaces and flags are also easy to implement and can boost application performance by up to 4.29 X.WANG Li LIAO XiangKe XUE JingLing WEIL Sage WEN YunChuan YANG XueJun 2015Science China(Information Sciences)2015,58,9:2
8美国南达科他州Black Hills国家森林公园2000年森林火灾后植被恢复过程研究(英文)显示文摘森林火灾在景观上往往造成不同程度的森林冠层损失,而冠层影响光合作用和蒸散,因此刻画灾后森林冠层恢复的轨迹对于了解生态系统过程具有重要意义。森林冠层的损失和恢复通常采用叶面积指数(LAI)或其它能够反映冠层光合能力的植被指数进行表征。本研究中,我们采用Terra卫星搭载的中分辨率成像光谱仪(MODIS)的长时间序列影像(2000-2009年)来重建火灾后森林冠层恢复的过程。以美国南达科他州布莱克山国家森林公园(The Black Hills National Forest, South Dakota)为例,该地区在2000年8月24日经历了一次大的自然火灾,烧毁了近33 785 ha森林,其中大部分是美国黄松林。基于LAI的研究表明,植被冠层光合能力在3年内(2001-2003年)基本恢复,这主要来自于林下未烧毁草地在灾后的快速生长;火烧迹地的NDVI和EVI在这3年内也呈现恢复的态势。可见,LAI、NDVI和EVI在火灾几年之后便难以有效地识别火烧迹地。然而,陆地表面水分指数(基于近红外和短波红外波段的遥感标准化指数,简称LSWI),能够有效地识别和追踪火烧迹地至今的整个过程(2000-2009年)。这一研究结果也使得采用其它具有近红外和短波红外波段的传感器研究森林火灾迹地恢复和干扰过程成为可能,其中包括Landsat 5 TM影像(可追溯至1984年)。更长时间序列的数据对于研究森林火灾灾后生态系统干扰和恢复过程、森林演替模拟以及碳循环具有重要的支撑作用,LSWI指标证明能够有效地刻画这一过程。肖向明 Chandrashekhar BIRADAR Audrey WANG Sage SHELDON 陈友民 2011Journal of Resources and Ecology2011,2,2:2
9Controlling the gelation temperature of biomimetic polyisocyanides显示文摘Thermosensitive polymers show an entropy-driven transition from a well-solvated to a poorly solvated polymer chain, resulting in a more compact globular conformation. The transition at the lower critical solution temperature(LCST) is often sharp, which allows for a wide range of smart material applications.At the LCST, oligo(ethylene glycol)-substituted polyisocyanides(PICs) form soft hydrogels, composed of polymer bundles similar to biological gels, such as actin, fibrin and intermediate filaments. Here, we show that the LCST of PICs strongly depends linearly on the length of the ethylene glycol(EG) tails; every EG group increases the LCSTand thus the gelation temperature by nearly 30 ℃. Using a copolymerisation approach, we demonstrate that we can precisely tailor the gelation temperature between 10 ℃ and 60 ℃and, consequently, tune the mechanical properties of the PIC gels.Paul H.J. Kouwer Paula de Almeida Onno ven den Boomen Zaskia H. Eksteen-Akeroyd Roel Hammink Maarten Jaspers Stijn Kragt Mathijs F.J. Mabesoone RoelandJ.M. Nolte Alan E. Rowan Martin G.T.A. Rutten Vincent A.A. Le Sage Daniel C. Schoenmakers Chengfen Xing Jialiang xu 2018Chinese Chemical Letters2018,29,2:2
10Telomerase reverse transcriptase promoter mutation is an early somatic genetic alteration in the transformation of premalignant nodules in hepatocellular carcinoma on cirrhosis显示文摘Jean Charles Nault Julien Calderaro Luca Di Tommaso Charles Balabaud Elie Serge Zafrani Paulette Bioulac‐Sage Massimo Roncalli Jessica Zucman‐Rossi 2014Hepatology2014,,6:2
11Deregulation of microRNA-503 Contributes to Diabetes Mellitus–Induced Impairment of Endothelial Function and Reparative Angiogenesis After Limb Ischemia显示文摘Andrea Caporali Marco Meloni Christine V?llenkle Desiree Bonci Graciela B. Sala-Newby Roberta Addis Gaia Spinetti Sergio Losa Rachel Masson Andrew H. Baker Reuven Agami Carlos le Sage Gianluigi Condorelli Paolo Madeddu Fabio Martelli Costanza Emanueli 2011Circulation2011,,3:2
12A genetic screen implicates miRNA-372 and miRNA-373 as oncogenes in testicular germ cell tumors显示文摘Voorhoeve PM le Sage C Schrier M 2006Cell2006,124,6:1
13Circadian orchestration of the hepatic pro- teome显示文摘Reddy A B Karp N A Maywood E S Sage E A Deery M O'Neill J S 2006Curr Biol2006,16,:1
14Regulation of the adenoma- tous polyposis coli gene by the miR - 135 family in colorectal cancer 显示文摘Nagel R le Sage C Diosdado B 2008Cancer Res2008,68,14:1
15The evolution of C4 photosynthesis显示文摘Sage R F 2004New Phytologist2004,161,:1
16Biological effects from electromagneticfield exposure and public exposure standards显示文摘Hardell L Sage C 2008BiomedPharmacother2008,62,2:1
17Axl/phosphatidylinositol 3-kinase signaling inhibits mineral deposition by vascular smooth muscle cells显示文摘Collett GD Sage AP Kirton JP 2007Circ Res2007,100,4:1
18Multiple goal orientations as predictors of moral behavior in youth soccer显示文摘SAGE L KAVUSSANU M 2007The Sport Psychologist2007,21,4:1
19Acurracy of IRAS GP in- terferometer and potential acuity meter prediction of visual acuity after phscoenulsiscation-prospective conqarative study 显示文摘Le Sage c Baralgette C Amard B 2002J catar- act Refract surg2002,28,1:1
20SPARC inhibits adipogenesis by its enhancement of beta - catenin signaling 显示文摘Nie J Sage EH 2009J Biol Chem2009,284,2:1
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