Results 31 to 40 of about 2,445,014 (170)

Accountability in Government Use of AI: Citizen Concerns and Preferences

open access: yesPublic Administration, EarlyView.
ABSTRACT Government adoption of AI opens the “pandora's box” of accountability, a core aspect of public value. Despite the centrality of governmental AI accountability, citizens' concerns and preferences in holding governments accountable for AI usage remain poorly understood.
Naikang Feng, Yanto Chandra
wiley   +1 more source

国外悬式绝缘子热机性能试验概况

open access: yesDianci bileiqi, 1982
本文介绍国外悬式绝缘子进行热机性能试验的意义,IEC推荐的试验方法基本内容及其由来,以及IEC试验方法比瑞典原有方法简化的内容及其使用状况,最后提出了尚需解决的问题。
曾明求
doaj  

Regional News, Regional Bias? Evidence From Media Discourses and Welfare Decisions in Germany

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT How do media representations of immigrants shape their treatment by street‐level bureaucrats? Despite a uniform federal legal framework, decision‐making varies substantially across local welfare offices. Though prior research links national news reporting and policy implementation, little is known about how regional variation in news reporting
Stefanie Rueß
wiley   +1 more source

Auto-focus technology and its application based on image processing

open access: yes, 2009
Auto-focusing technique is an important method to improve the precision,intelligentization,automatization for the indentation diameter measurement.The paper introduces an auto-focus method of indentation diameter measurement based on image processing ...
Chen, Xiaomei, Yang, Tao, Zuo, Yong
core  

求解复杂约束问题的基因表达式编程文法模型

open access: yes四川大学学报. 自然科学版, 2009
基因表达式编程GEP是进化计算算法家族的新成员,GEP富有特色的个体编码能很方便地表达和解决一批NP问题.但基本GEP难以表达和求解复杂约束,主要工作包括:(1)提出了GEP的上下文无关文法模型gepGram;(2)从理论上证明了gepGram的表达能力和含单个非终结符的上下文无关文法相同;(3)给出了gepGram文法可描述约束问题的GEP求解算法,算法与基因长度具有线性伸缩性;(4)实验证明了本文提出算法具有较高的效率,当基因长度为10~6时,解码仅需0.4s.
左劼   +4 more
doaj  

Farm‐Scale Recharge Pits for Improving Local Groundwater Availability: Insights From a Hardrock Watershed in Rajasthan, India

open access: yesWorld Water Policy, Volume 12, Issue 3, August 2026.
ABSTRACT Groundwater depletion is a major challenge in semiarid, hard‐rock regions where irrigation demands often exceed natural recharge. This study evaluates the effectiveness of farm‐scale recharge pits as a local, supplementary, and community‐managed groundwater recharge solution in the Dharta catchment of Rajasthan, India. Alongside check dams and
Prahlad Soni   +4 more
wiley   +1 more source

求线性矩阵方程异类约束解的修正共轭梯度法

open access: yes, 2012
基于求解线性代数方程组共轭梯度法的基本思
薛彬, 解培月, 张凯院
core  

A filled function algorithm for unconstrained global optimization problems(一个求解无约束优化问题的填充函数算法)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2011
填充函数法是求解无约束全局优化问题的一种方法,这种方法的关键是构造具有良好性质的填充函数.基于填充函数定义与性质的基本要求,构造了一个新的求解无约束全局优化问题的单参数填充函数.该函数形式简单,便于计算,并建立了相应的填充函数算法.最后,进行了数值试验,结果表明,该算法是有效的.
HESu-xiang(贺素香)   +1 more
doaj   +1 more source

Polyphenol oxidase depletion in Nicotiana benthamiana enhances recombinant protein purification and preserves native protein integrity

open access: yesNew Phytologist, Volume 251, Issue 3, Page 1283-1293, August 2026.
Polyphenol oxidases (PPOs) depletion preserves endogenous proteins at their predicted molecular weights and enhances detectable enzymatic activities. (a) Less RbcL crosslinking in ppo mutant of Nicotiana benthamiana. Leaf extracts were incubated for 1 h, separated on protein gels, stained with Coomassie or analyzed by Western blot with the anti‐RbcL ...
Kaijie Zheng   +4 more
wiley   +1 more source

基于新材料和新基质的MALDI-TOFMS分析方法发展

open access: yes, 2010
基质辅助激光解吸离子化时间飞行质谱(MALDI-TOF MS)技术由于其具有分析速度快、样品制备简单、检测灵敏度高等特点在许多领域获得了广泛的应用,但其在低丰度样品的预处理、最佳解吸基质的选择等方面仍然面临着方法学的挑战。本论文针对生物样品的MALDI 分析存在的问题,发展了几种新技术和新方法。针对磷酸化肽在MALDI-TOF MS 分析中所面临的丰度低和大量非磷酸化肽干扰的问题,发展了两种基于骨架中含钛的介孔材料(Ti-HMS 和Ti-SBA-15)的选择性富集磷酸化肽方法。Ti-HMS 和Ti ...
张宇
core  

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