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微型机与应用 2007年第8期26卷 90-91页

作者： steven d.Eppinger 麻省理工学院斯隆管理学院

在过去的10年里，全球产品开发（GPd）已经成为一种潮流。但是到了今天，全球产品开发的模式已经演化到了精益产品开发的模式。其中的推动因素就是企业需要更高效率的生产，需要做更多的产品研发工作，并且尽量利用一笔投资来完成多个... 详细信息

在过去的10年里，全球产品开发（GPd）已经成为一种潮流。但是到了今天，全球产品开发的模式已经演化到了精益产品开发的模式。其中的推动因素就是企业需要更高效率的生产，需要做更多的产品研发工作，并且尽量利用一笔投资来完成多个研发。

关键词：产品开发模式学习研发工作

A Role for Type 1 Angiotensin Receptors on Immune Cells in Hypertensive Kidney disease

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A Role for Type 1 Angiotensin Receptors on Immune Cells in H...

中国生理学会肾脏生理专业委员会第二届学术年会

作者： steven d.Crowley 杜克大学附属医院肾脏病科

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关键词：

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利用大豆光谱特征判定地下封存CO_2泄漏

农业工程学报 2013年第12期29卷 163-169页

作者：蒋金豹 Michael d steven 何汝艳蔡庆空陈云浩徐谨中国矿业大学(北京)地测学院北京100083 School of Geography University of Nottingham 北京师范大学资源学院北京100875

碳捕捉与储存(carbon capture and storage,CCS)技术可以减少CO2气体排放,从而减缓全球气候变暖。但把CO2液化后进行地质封存具有泄漏的风险,如何大面积、快速、高效地监测CO2泄漏点是一个技术难题。该文通过野外模拟试验,以大豆为试验... 详细信息

碳捕捉与储存(carbon capture and storage,CCS)技术可以减少CO2气体排放,从而减缓全球气候变暖。但把CO2液化后进行地质封存具有泄漏的风险,如何大面积、快速、高效地监测CO2泄漏点是一个技术难题。该文通过野外模拟试验,以大豆为试验对象,研究了地下储存的CO2轻微泄漏对地表植被及其遥感特征的影响。大豆在2008年6月4日播种,自7月4日开始CO2气体以1L/min的速度持续注入土壤中,每天测量土壤中CO2体积分数(土壤中CO2气体占土壤中总气体体积含量的百分比)、每周测量1次大豆叶片的SPAd值、光谱数据。试验结果表明,当土壤中CO2体积分数小于15%时,对照(CK)与CO2泄漏胁迫大豆SPAd值无显著性差异(P>0.1),当土壤中CO2体积分数大于等于15%时,CK与CO2泄漏胁迫大豆SPAd值具有极显著性差异(P<0.001),随着胁迫进行大豆会早熟、落叶,甚至枯死。利用连续统去除法对大豆的光谱数据进行处理,发现随着土壤中CO2体积分数的增大,在绿光区的光谱反射率逐渐增大,而其他波段则无明显变化规律。根据CO2泄漏胁迫下大豆的光谱变化特征,设计采用面积植被指数Area(510～590nm)(510～590nm光谱曲线所包围的面积)识别遭受CO2泄漏胁迫的大豆。结果表明,当土壤中CO2体积分数大于等于15%时,Area(510～590nm)指数可以较好地识别出遭受胁迫的大豆,且具有较高的可区分性及稳定性,但当土壤中CO2体积分数小于15%时,该指数在整个生育期内无法准确识别出遭受胁迫的大豆。该研究结果对未来地表生态评估、高光谱遥感监测CO2泄漏点具有重要意义与应用价值。

关键词：光谱分析叶绿素模型 CO2泄漏胁迫大豆

Sperm quality metrics were improved by a biomimetic microfluidic selection platform compared to swim-up methods

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Microsystems & Nanoengineering 2023年第2期9卷 261-274页

作者： steven A.Vasilescu Lin ding Farin Yazdan Parast Reza Nosrati Majid Ebrahimi Warkiani NeoGenix Biosciences pty Itd SydneyNSW 2126Australia. School of Biomedical Engineering University of Technology SydneySydneyNSW 2007Australia department of Mechanical&Aerospace Engineering Monash UniversityClaytonVIC 3800Australia institute for Biomedical Materials&devices(IBMd) Faculty of ScienceUniversity of Technology SydneySydneyNSW.2007Australia

Sperm selection is an essential component of all assisted reproductive treatments(ARTs)and is by far the most neglected step in the ART workflow in regard to technological *** sperm selection methodologies typically produce a higher total number of sperm with variable motilities,morphologies,and levels of dNA ***-standard techniques,including density gradient centrifugation(dGC)and swim-up(SU),have been shown to induce dNA fragmentation through introducing reactive oxygen species(ROS)during ***,we demonstrate a 3d printed,biologically inspired microfluidic sperm selection device(MSSP)that utilizes multiple methods to simulate a sperms journey toward *** are first selected based on their motility and boundary-following behavior and then on their expression of apoptotic markers,yielding over 68%more motile sperm than that of previously reported methods with a lower incidence of dNA fragmentation and *** from the MsSP also demonstrated higher motile sperm recovery after cryopreservation than that of sU or neat *** were conducted side-by-side against conventional SU methods using human semen(n=33)and showed over an 85%improvement in dNA integrity with an average 90%reduction in sperm *** results that the platform is easy-to-use for sperm selection and mimics the biological function of the female reproductive tract during conception.

关键词： utilize yielding neglected

Exploring unconventional attributes of red blood cells and their potential applications in biomedicine

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Protein & Cell 2024年第5期15卷 315-330页

作者： Alkmini T.Anastasiadi Vasiliki-Zoi Arvaniti Krystalyn E.Hudson Anastasios G.Kriebardis Constantinos Stathopoulos Angelo d’Alessandro steven L.Spitalnik Vassilis L.Tzounakas department of Biochemistry School of MedicineUniversity of Patras26504 PatrasGreece department of Pathology and Cell Biology Columbia University Irving Medical CenterNew York CityNY 10032USA Laboratory of Reliability and Quality Control in Laboratory Hematology(HemQcR) Department of Biomedical SciencesSchool of Health&Caring SciencesUniversity of West Attica(UniWA)12243 EgaleoGreece department of Biochemistry and Molecular Genetics University of Colorado Anschutz Medical Campus13001 AuroraCOUSA Present address:Institute for Fundamental Biomedical Research(IFBR) Biomedical Sciences Research Center“Alexander Fleming”Vari11527 AthensGreece

We need to talk about red blood *** cells are defined as cells containing distinct nuclei and other membranous ***,red blood cells(RBCs)lack a nucleus and organelles—perhaps to limit the generation of reactive oxygen species(Zhang et al.,2011)—and are filled with hemoglobin(Hb).This oxygen carrier is limited to the cytosol by the cell membrane and cytoskeleton,which maintain cellular integrity and deformability as RBCs pass through narrow capillaries(Gratzer,1994)to perform their primary function of gas exchange.

关键词： membranous maintain

Atlas of uncommon pain syndromes 2nd ed

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2008年

作者： steven d. Waldman

来源：畅想之星图书光盘版（南... 评论

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继发于乳腺癌的医源性血管肿瘤

中华病理学杂志 2012年第10期41卷 708-711页

作者： steven d. Billings 韩安家 department of Anatomic Pathology Cleveland Clinic Cleveland Ohio 44195 U S A 中山大学附属第一医院病理科

Stewart和Treves首次报道了6例乳腺癌患者经手术根治和淋巴结清扫后继发了血管肉瘤，这些患者多在乳腺癌根治术10年后在其胸壁或同侧前臂出现血管肉瘤。关于血管肉瘤的病因起初存在争议，因一些乳腺癌患者同时也接受了放疗，然而部分乳... 详细信息

Stewart和Treves首次报道了6例乳腺癌患者经手术根治和淋巴结清扫后继发了血管肉瘤，这些患者多在乳腺癌根治术10年后在其胸壁或同侧前臂出现血管肉瘤。关于血管肉瘤的病因起初存在争议，因一些乳腺癌患者同时也接受了放疗，然而部分乳腺癌患者并未接受放疗，这与许多肿瘤发生于辐射场之外的事实共同支持淋巴水肿是医源性血管肉瘤的最重要致病因素。另外，血管肉瘤可发生于其他引起慢性淋巴水肿的疾病，包括先天性淋巴水肿，肥胖和丝虫病也支持这一观点。

关键词：乳腺癌患者医源性血管肿瘤继发先天性淋巴水肿血管肉瘤乳腺癌根治术致病因素

The global mismatch between equitable carbon dioxide removal liability and capacity

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National Science Review 2023年第12期10卷 111-123页

作者： Pu Yang Zhifu Mi Yi-Ming Wei Steef V.Hanssen Lan-Cui Liu d'Maris Coffman Xinlu Sun Hua Liao Yun-Fei Yao Jia-Ning Kang Peng-Tao Wang steven J.davis The Bartlett School of Sustainable Construction University College London Energy and Power Group University of Oxford Exeter Sustainable Finance Centre University of Exeter Center for Energy and Environmental Policy Research Beijing Institute of Technology School of Management and Economics Beijing Institute of Technology department of Environmental Science Faculty of Science Radboud University Business School Beijing Normal University Strategy Plan department Sinopec Research Institute of Petroleum Engineering department of Earth System Science University of California

Limiting climate change to 1.5℃ and achieving net-zero emissions would entail substantial carbon dioxide removal(CdR) from the atmosphere by the mid-century,but how much CdR is needed at country level over time is *** purpose of this paper is to provide a detailed description of when and how much CdR is required at country level in order to achieve 1.5℃ and how much CdR countries can carry out *** allocate global CdR pathways among 170 countries according to 6 equity principles and assess these allocations with respect to countries’ biophysical and geophysical capacity to deploy *** global CdR to countries based on these principles suggests that CdR will,on average,represent～4% of nations’ total emissions in 2030,rising to ～17% in ***,equitable allocations of CdR,in many cases,exceed implied land and carbon storage *** estimate～15 % of countries(25)would have insufficient land to contribute an equitable share of global CdR,and ～40% of countries(71)would have insufficient geological storage *** more diverse CdR technologies are developed,the mismatch between CdR liabilities and land-based CdR capacities will lead to global demand for six GtCO2carbon credits from 2020 to *** demonstrates an imperative demand for international carbon trading of CdR.

关键词： carbon dioxide removal land-based solutions international equity

A CONSERVATIVE VIEW OF RAdIAL KERATOTOMY

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眼科学报 1991年第3期7卷 130-139页

作者： steven Olkowski Walter J.Stark John d.Gottsch Gerri Goodman daniel Goodman A.E.Maumenee Ivan Esente The Wilmer Ophthalmological Institute The Johns Hopkins University School of MedicineBaltimoreMaryland 21205U.S.A.

It has been known for almost a century that radial keratotomy(RK)will flatten the cornea and reduce *** the introduction of radial keratotomy(RK)in the United States by Bores in 1978,there have been many published studies documenting the effects of this *** *** radial keratotomy today are not only quantitative but also qualitative in *** know this technique can flatten the cornea,but how reliably can the results be predicted?

关键词：件号