Results 11 to 20 of about 128,200 (158)
Jianzhu Gangjiegou Jinzhan, 2023 针对网架结构中钢管杆件损伤缺陷检测问题，基于杆端施加位移的方式，激励了L（0，2）模态超声导波开展无损检测。分析了适用于钢管无损检测的导波信号频率和信号周期特征，利用了L（0，2）模态导波进行了不同圆周夹角的周向缺陷和不同长度轴向缺陷的导波检测。有限元结果表明，考虑多模态叠加和最大反射率的影响，70 kHz频率10周期的Hanning正弦信号激励的超声导波适用于钢管杆件的缺陷检测；当钢管缺陷宽度与深度不变时，周向损伤占圆周的比值与信号平均反射率成线性正比关系。
曹栋 +4 more
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The Anatomical Record, Volume 306, Issue 12, Page 2945-2957, December 2023., 2023 Abstract Incipient diagnosis and noninvasive forecasts using urinary biomarkers are important for preventing diabetic kidney disease (DKD) progression, but they are also controversial. Previous studies have shown a potential relationship between urinary tubular biomarkers (UTBs) and traditional Chinese medicine (TCM) syndrome in patients with DKD. Thus,
Wei Wu +11 more
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Use of carrion fly iDNA metabarcoding to monitor invasive and native mammals
Conservation Biology, Volume 37, Issue 5, October 2023., 2023 Abstract Severely fragmented habitats increase the risk of extirpation of native mammal populations through isolation, increased edge effects, and predation. Therefore, monitoring the movement of mammal populations through anthropogenically altered landscapes can inform conservation. We used metabarcoding of invertebrate‐derived DNA (iDNA) from carrion
Kristen Fernandes +5 more
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Acute phase protein concentrations following serial procaine penicillin G injections in horses
Equine Veterinary Journal, Volume 55, Issue 5, Page 916-922, September 2023., 2023 Abstract Background Acute phase protein (APP) measurement is used to detect inflammation. Intramuscular (IM) injections could cause tissue injury and induce an acute phase response (APR). Objectives To evaluate the effects of IM procaine penicillin G (PPG) injections on APP concentrations in horses.
Danielle L. Gordon +5 more
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Veterinary Dermatology, Volume 34, Issue 4, Page 327-338, August 2023., 2023 Background – The caninised monoclonal antibody lokivetmab (LKV), directed at interleukin (IL)‐31, is very effective at controlling pruritus in most dogs with atopic dermatitis (AD). However, evidence exists that IL‐31 is not required for the induction of acute allergic skin inflammation, which might explain why this treatment is less efficacious in ...
Chie Tamamoto‐Mochizuki +4 more
wiley +1 more source
Ultrasound in Obstetrics &Gynecology, Volume 61, Issue 2, Page 158-167, February 2023., 2023 ABSTRACT Objective Cytomegalovirus (CMV) DNA is detectable in the amniotic fluid collected by amniocentesis in cases in which the fetus has been infected. However, cases of congenital neonatal CMV infection with a negative amniocentesis result have also been reported in the literature.
C. Chatzakis +3 more
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Ultrasound in Obstetrics &Gynecology, Volume 58, Issue 4, Page 582-589, October 2021., 2021 Abstract Objective A trial comparing prenatal with postnatal open spina bifida (OSB) repair established that prenatal surgery was associated with better postnatal outcome. However, in the trial, fetal surgery was carried out through hysterotomy. Minimally invasive approaches are being developed to mitigate the risks of open maternal–fetal surgery.
D. A. Lapa +9 more
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, 2020 目的介绍几种常用的苹果霉心病无损检测技术及建模方法,为苹果及其他水果病害的无损检测提供新的思路和依据。方法综述苹果霉心病无损检测技术和建模方法的原理,以及国内外的研究进展。结果在苹果霉心病的无损检测中,光谱检测技术应用较广泛,生物电阻抗特性、各种成像检测技术和机器智能感官仿生检测技术逐渐得到发展,融合多源信息的霉心病检测技术也越来越受到研究者的青睐。结论苹果霉心病无损检测的研究还处于初级阶段,许多检测技术和建模方法的参数还需要进一步优化。随着研究的深入,无损检测技术不仅可以应用于水果病害的检测 ...
李江阔 +4 more
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Developmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019 目的 本国际临床指南由欧洲残疾儿童学会（the European Academy of Childhood Disability，EACD）牵头制定，旨在解决发育性协调障碍（developmental coordination disorder，DCD）的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题，通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础，以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类，最终转化为指南建议。并由国际 ...
Jing Hua +6 more
wiley +1 more source
Gaoya dianqi, 2022 叶片是风电机组的重要组成部分，承担着捕获风能的重要功能，一旦损伤必然导致风机停机，对其进行状态监测十分必要。对风机叶片的监测主要采用无损检测技术，传统方法大都基于电子测量原理，具有抗电磁干扰能力差、无法实现分布式测量等缺点。文中在对比传统无损检测技术灵敏度、效率、抗干扰能力等指标的基础上，重点分析和研究了光纤传感技术用于风机叶片监测的现状。从测量原理、传感器结构、应用实施方法、监测效果等方面，分析了FBG、BOTDA、OFDR以及干涉型光纤传感技术的研究进展 ...
吕安强, 魏伦
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