Results 11 to 20 of about 3,485 (110)

工业建筑可调式支座高层钢结构优化设计 [PDF]

open access: yes, 1997
本文结合国家“八五”重点工程之生命线工程-淮南矿务局谢桥煤矿副井领井塔高层钢结构工程设计,着重分析了未融冻土特殊地基拟建建筑物所遇到突出问题-地基沉降问题,通过概念设计,多方案优化比较,在支座选型上突破了常规,选用滑动支座(用于安装及支座沉降调节阶段)和铰接支座(用于正常使用阶段)两种结构计算模型,进行结构分析。采用与计算模型相适应的特殊的结构构造措施,从而确定合理的结构方案,进行合理的结构设计。本文优化重点在于结构造型。理论与实践同时证明,设计是成功的 ...
刘利, 王富康, 詹得志
core  

Mitigating light pollution impacts on arthropods based on light‐emitting diode properties

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Light pollution from artificial light at night (ALAN) is a significant environmental problem with far‐reaching consequences for ecological systems. Recent innovations in light‐emitting diode (LED) technology may offer sustainable outdoor lighting solutions, but scientific evidence is lacking. We investigated the effects of various LED lighting
Nicola van Koppenhagen   +3 more
wiley   +1 more source

Template Engineering of Magnetic Nanoparticles Decorated on Porous Carbon for High‐Performance Multiband Electromagnetic Wave Absorption

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Although magnetic carbon materials possess significant potential in the field of electromagnetic wave absorption (EWA) due to the synergistic effect of multiple attenuation mechanisms, the currently reported magnetic carbon EWA materials face some challenges, such as high cost, low yield, and easy agglomeration of the magnetic component ...
Bo Jiang   +9 more
wiley   +1 more source

Endometrial assessment in abnormal uterine bleeding: transvaginal ultrasound alone may not be good enough

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 1, Page 79-88, January 2026.
ABSTRACT Objective To evaluate the proportion of optimal assessments of endometrial thickness (ET) achieved by transvaginal ultrasound (TVS) compared with a multimodal (MM) sonographic approach in women with abnormal uterine bleeding (AUB). Methods This prospective observational study was a subset of the EPI‐SURE study conducted between June and ...
S. Nijjar   +5 more
wiley   +1 more source

Structure Analysis and Optimization Design of the Campus Electric Vehicle Frame [PDF]

open access: yes, 2010
车架作为电动车的承载与装配基体,承受着来自乘员、道路和其它总成的复杂载荷作用,车架结构性能直接影响着电动车的安全性、舒适性,甚至关系到整车设计的成败。在保证强度与刚度的前提下,车架结构的轻量化对电动车的节能具有重要意义。 本文以校园电动车车架为研究对象,利用有限元分析软件ANSYS建立了车架梁单元的有限元模型。根据电动汽车定型试验规程和针对特定校园路面多坡的特点,对弯曲、爬坡、扭转、紧急刹车、急转弯等工况进行了车架的静态特性分析,得到相应工况下应力分布和变形云图,为后续的优化设计提供了参考依据 ...
连加椿
core  

Prenatal evaluation, diagnosis and management of fetal corpus callosal abnormalities: international Delphi consensus

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 5, Page 582-588, November 2025.
ABSTRACT Objective The corpus callosum (CC) is an interhemispheric structure that facilitates communication between the two cerebral hemispheres. Anomalies of the CC are frequent and associated with a wide spectrum of altered neurodevelopmental outcomes.
R. Corroenne   +55 more
wiley   +1 more source

Synopsis of the antimicrobial use guidelines for canine pyoderma by the International Society for Companion Animal Infectious Diseases (ISCAID)

open access: yesVeterinary Dermatology, Volume 36, Issue 5, Page 552-565, October 2025.
Abstract Background Canine pyoderma is one of the most common presentations in small animal practice, frequently leading to antimicrobial prescribing. Objectives To provide clinicians with antimicrobial treatment guidelines for staphylococcal pyoderma, including those involving meticillin‐resistant staphylococci.
Anette Loeffler   +9 more
wiley   +1 more source

对电力变压器铁心柱截面的新型优化设计

open access: yesGaoya dianqi, 2011
针对电力变压器铁心柱截面优化问题,提出了一种新型优化设计方案。该新方案具有有效截面积更优、优化效果更好、利用率更高、铁心制造成本更低、减少能量损耗更多的优点,且考虑到散热性,对其进行了油道设计,实用性更强。
蒋雪峰   +5 more
doaj  

Antimicrobial use guidelines for canine pyoderma by the International Society for Companion Animal Infectious Diseases (ISCAID)

open access: yesVeterinary Dermatology, Volume 36, Issue 3, Page 234-282, June 2025.
Background – Canine pyoderma is one of the most common presentations in small animal practice, frequently leading to antimicrobial prescribing. Objectives – To provide clinicians with antimicrobial treatment guidelines for staphylococcal pyoderma, including those involving meticillin‐resistant staphylococci.
Anette Loeffler   +9 more
wiley   +1 more source

基于Ansys Workbench的不同截面型式自力型触指/触头配合结构优化设计

open access: yesGaoya dianqi, 2017
采用Cu-Cr合金材料,利用Solidworks建立自力型触指的矩形和W型截面触指/触头配合结构三维模型;通过DOE分析选取设计变量;运用Ansys Workbench的参数目标驱动优化对其结构参数进行了优化仿真。2种不同截面配合结构的最大应力和最大变形量的对比显示:随着触头直径、触指厚度以及摩擦行程的增大,各响应变量与之成正比例关系,且触头直径与摩擦行程对响应变量的影响比触指厚度的变化对响应变量的影响更大。经过多目标驱动优化后,矩形触指的最大变形量为6.6 mm,而W型触指最大变形量为2.6 mm ...
杨帆, 邓斌, 王国志, 刘桓龙
doaj  

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