Results 61 to 70 of about 25,354 (263)

摆动平底从动件盘形凸轮的解析设计方法及程序设计

open access: yesJixie chuandong, 1998
本文对摆动平底从动件盘形凸轮的解析设计方法进行了研究 ,通过机构学分析方法和包络线方法 ,给出了设计此类凸轮的实际轮廓曲线方程的方法及其它相关方程和计算程序框图 ...
黄靖远, 刘莹
doaj  

Comparing public support for alternative climate policy designs: An experimental study

open access: yesReview of Policy Research, EarlyView.
Abstract Scholars have debated how specific policy designs may generate stronger positive or negative reactions from the public, especially with regard to public expectations regarding pricing‐based policy designs compared to regulatory approaches.
Joshua Basseches   +3 more
wiley   +1 more source

A novel approach for feline sporotrichosis pathogen detection based on loop‐mediated isothermal amplification

open access: yesVeterinary Dermatology, EarlyView.
Background – Sporotrichosis is a chronic, mycotic infection caused by fungi of the genus Sporothrix. Zoonotic sporotrichosis occurs mainly through S. brasiliensis transmission, resulting from the organism's traumatic introduction via scratches or bites, or contact with exudate from contaminated cats.
Steffanie Amadei   +6 more
wiley   +1 more source

Design and Implementation of the Online Vocal Music Teaching Assistant System [PDF]

open access: yes, 2015
当今社会,互联网已经深入到日常生活的方方面面,成为了人们生活中不可缺少的一部分。在声乐教学工作中,不断地有老师学生提出在教学工作中急需解决的问题。如由于教学时间不足,教师没有足够的课堂时间为学生进行全面的声乐技巧教授、教师布置的课后作业需要统一查看评分留底,工作量大、除课堂时间外,师生间缺乏沟通渠道等。 针对这些问题,设计实现一个声乐教学辅助系统变得极为必要。一方面要具有完整的管理概念,需要理顺教师、课程、班级、学生之间的相互关系。老师只需要按照课程安排把每一次课程所需教授的演唱技巧录制成视频并上传 ...
沈明春
core  

具有模糊可靠度约束的销齿传动参数的模糊优化

open access: yesJixie chuandong, 2002
在充分考虑了销齿传动各设计参数的模糊性和随机性的基础上 ,结合传统优化设计方法 ,探讨了具有模糊可靠度约束的销齿传动参数的模糊优化设计方法。
林国湘, 刘迪荣
doaj  

Validation of the Equine Urticaria Activity Score for the assessment of chronic recurrent urticaria in horses

open access: yesVeterinary Dermatology, EarlyView.
Background – Recurrent urticaria is common in horses. The pathophysiology is poorly understood and treatment options are limited. Often only glucocorticoids are effective for controlling clinical signs, albeit with potential adverse effects. Studies investigating new treatments need a validated objective scoring system for the grading of skin lesions ...
Katharina Birkmann   +5 more
wiley   +1 more source

竖向荷载下半刚性连接组合框架的实用设计方法(Ⅰ)——梁柱节点设计

open access: yesJianzhu Gangjiegou Jinzhan, 2006
虽然在钢框架结构设计中考虑半刚性连接和楼板的组合效应会产生良好的结构经济性,但是在实际工程中仍很难应用,主要原因是缺乏合适简便的设计方法。本文在国内外研究的基础上,结合我国钢结构设计规范GB50017-2003,给出了竖向荷载下半刚性连接组合框架的实用设计建议方法。设计建议方法包括满足两个极限状态的节点、梁、柱设计,较好地解决了梁挠度和柱有效长度系数计算中节点连接刚度的合理选取、半刚性特征对梁挠度和柱计算长度的影响。该方法不仅反映了节点和框架的实际性能,而且简便实用,符合工程师对普通钢框架的设计习惯 ...
李国强, 王静峰, 刘清平
doaj  

《Structural Fire Engineering》书评

open access: yesJianzhu Gangjiegou Jinzhan, 2020
<正>近期,结构抗火领域的国际知名学者Kodur教授和他的学生Naser博士撰写了新书《Structural Fire Engineering》,由Mc Graw Hill Education出版社全球发行。结构抗火设计方法分为传统方法和现代方法。传统方法是基于试验的结构抗火设计方法,也叫处方式方法,该方法具有明显的缺陷,不能提供最优和合理的防火保护方案。近年来,许多国家开始采用现代方法 ...
李国强, 王卫永
doaj  

Challenges for the veterinary profession: A grounded theory study of veterinarians' experiences of caring for older horses

open access: yesEquine Veterinary Journal, Volume 57, Issue 4, Page 1053-1064, July 2025.
Abstract Background In Great Britain, owners are keeping their horses into increasingly older age, reflecting societal changes in human–animal relationships. The uptake of routine veterinary services is reported to reduce as horses age. Horse owners seek information regarding their animal's health from alternative sources before and/or following ...
Rebecca Smith   +4 more
wiley   +1 more source

An Inverse Method for Supersonic Flowfield with Given Downstream Boundary [PDF]

open access: yes, 2016
为了实现超声速流场出口参数的可控设计,借鉴特征线方法在古尔赛特与柯西问题两类边值条件中的应用,提出了一种根据下游边界条件求解其依赖域的逆柯西问题求解方法,并在此基础上发展了一种均匀来流条件下的超声速流场逆向求解方法。对轴对称内收缩流场、二维平面流场、轴对称外锥流场三个典型算例校核表明,逆向求解方法得到的计算结果与正向特征线方法一致,由此验证了该逆向求解方法的可行性,并有效拓展了超声速流场的设计思路。For the controllable design of exit parameters in ...
尤延铖   +3 more
core  

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