Results 11 to 20 of about 15,905 (167)
High‐Brightness Delayed Imaging Realized by Embedding Zinc Gallate Nanocrystals Into Glass
ABSTRACT X‐ray delayed imaging technology leverages an “irradiation‐storage‐thermally stimulated readout” mode, demonstrating unique advantages in intermittent monitoring scenarios such as high‐temperature/high‐radiation environments. This typically requires materials combining abundant carrier‐trapping energy levels with structural thermostability ...
Jun‐Xiao Wu +6 more
wiley +1 more source
Genomic responses to increased temperature and pollinator selection in Brassica rapa L.
Summary Rapid environmental change reshapes both abiotic stress and biotic interactions, yet it remains unclear how these combined forces structure plants' genomic adaptation. In particular, the joint influence of temperature and pollinator identity, two ecological axes undergoing simultaneous global shifts, has rarely been quantified at genomic ...
Yanqian Ding, Florian P. Schiestl
wiley +1 more source
Contribution of microcosm experiments to conservation science
Abstract Microcosms, or miniature experimental systems, have been used to develop models and theories in ecology. However, their contribution to conservation science is unclear. We explored the application, design, and impact of microcosms in conservation science from 469 systematically identified articles published from 1986 to 2023.
Eleanor R. Stern +3 more
wiley +1 more source
ABSTRACT Mechanoluminescent materials have gained significant attention for their unique capability to convert mechanical stimuli into light without external optical or electrical excitation, holding immense promise for applications in safety monitoring, biomedicine, optical anti‐counterfeiting, and intelligent sensing.
Fanlei Qin +8 more
wiley +1 more source
采用分子印迹固相萃取,实现对海水中莠去津的高效分离富集,消除海水基体效应,以低检出限分子印迹聚合物膜离子选择性电极为传感器敏感元件,实现对莠去津的高灵敏电位检测,结合在线过滤等流动分析自动化处理 技术提高传感器体系分析效率,开发出了一类能够在线快速检测海水中莠去津浓度的新型电位型传感器系统。所开发的检测系统对莠去津检测的线性范围在5×10-10 ~4×10-9 mol L-1 ,检出限可达9×10-11 mol L-1 ...
梁荣宁 高奇 尹坦姬 秦伟 +1 more
core
Study on accurate detection of grain moisture in granary based on radio frequency principle [PDF]
Based on the linear correlation between grain moisture content and radio frequency(RF) signal,a new granary detection device was developed.A new RF detection circuit was designed to redesign the detection structure.Through the special detection circuit ...
CHEN Zhong-xu +3 more
core +1 more source
The Research on Steel Plate Defects Inspection by Magneto-acoustic Testing with Induction [PDF]
随着工业化的发展,钢材被应用在了各种各样的领域,比如:天然气管道、轮船、汽车等等。然而,随着时间的推移,钢材在使用过程中会出现腐蚀、裂纹等缺陷,这些缺陷严重影响了使用的安全,所以必须在事故发生之前对其进行检测以评估其安全性。本文在对比多种无损检测方法及研究感应式磁声成像的基础上提出了感应式磁声检测的新方法。该方法是在静态磁场下,通过脉冲电流激励被测钢板表面,进而在钢板内部发生电-磁-声的相互转化,最后提取钢板表面的磁声信号。该方法与被测材料无接触,无耦合,可在恶劣环境下进行工作,非常适合钢板的在线检测。
游德海
core
ABSTRACT Objective To evaluate the use of twin vs singleton growth charts for detecting small‐for‐gestational‐age (SGA) twins at risk of adverse neonatal outcomes. Methods MEDLINE, EMBASE, CINAHL, Cochrane and Scopus databases were searched electronically from inception to May 2024.
S. Sorrenti +9 more
wiley +1 more source
气相色谱分析在检测变压器各类故障方面发挥了很重要的作用,但离线检测存在很多缺点,针对离线检测方法操作的繁琐性,介绍了一种基于气敏传感器的在线监测系统,论述了用监测两种气体来实现对变压器油中溶解气体在线监测的原因和方法,对气体传感器和气体在线监测的硬件设计和通信软件设计等进行了具体的分析和探讨。
张挺, 王章启, 魏天魁
doaj
Explore the Raman instruments and methods for high sensitivity, on-line detection and miniaturization [PDF]
仪器是自然科学研究的重要工具,是科学研究的基础条件。科学技术的飞 速发展对仪器提出了越来越高的要求,不断的有新技术,新材料被用于科学仪 器的研发。反过来,科学仪器的发展水平也决定了科学研究的水平。“工欲善其 事,必先利其器”,仪器方法的研究本身也是一个重要的科学门类。它的特点和 难点在于要用多学科的技术来解决某一学科的尖端难题。目前,我们国家大部 分高档科学仪器依赖进口,而某些研究需要对仪器进行改装或自主搭建则困难 重重,一方面仪器厂商定制仪器价格十分高昂,而且定制仪器需要反复修改, 一般企业很难做到 ...
汪安
core

