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From Presence to Policy: The Conditional Impact of Women's Representation in Top Management Teams in Chinese Local Governments

open access: yesPublic Administration, Volume 104, Issue 1, Page 175-187, March 2026.
ABSTRACT While public administration research has begun exploring the impact of women's representation in top leadership positions in public organizations, the conditions under which women's representation in top management teams (TMTs) produces policies specifically benefiting women remain underexamined.
Ting Huang   +3 more
wiley   +1 more source

基于RS和GIS的水库流域土地利用类型划分的研究

open access: yesShuitu Baochi Xuebao, 2001
利用1998年9月28日TM卫星数据,经过数据校正、影像增强和非监督分类等处理,制作卫星影像分类图,建立判读标志;利用全球定位系统(GPS),结合地理信息数据进行实况调查,建立卫星影像分类解释依据,标定土地利用类型;借助Arc/Info GIS、Arcview GIS 划分流域土地利用类型.
张金恒 朱德柱 蔡体久 王人潮
doaj  

裸露砒砂岩区坡面侵蚀过程中地表粗糙度与水力侵蚀特征参数的关系

open access: yesShuitu Baochi Xuebao, 2022
坡面地形起伏状况是影响土壤侵蚀状况的重要因素,深入了解地表粗糙度和产流产沙以及水动力参数之间的关系是研究坡面土壤侵蚀过程的基础。采用野外原位模拟冲刷试验,使用三维激光扫描仪结合ArcGIS提取地形因子参数,研究了裸露砒砂岩区坡面侵蚀过程中地表粗糙度与侵蚀特征参数的关系。结果表明:(1)冲刷强度的增大使得阻力特征参数逐渐降低,且随着冲刷时间的增加,弗劳德数也呈现降低趋势,其他水力学参数呈增大趋势 ...
董晓宇   +5 more
doaj  

Coal gangue image recognition model based on CSPNet-YOLOv7 target detection algorithm [PDF]

open access: yes
The gangue recognition technology is one of the key technologies in the intelligent construction of mines. To address the problem of low accuracy of the gangue recognition model caused by low illumination and high dust environment at the working face and
Chao LIU   +4 more
core   +1 more source

BP神经网络的分层优化研究及其在风电功率预测中的应用

open access: yesGaoya dianqi, 2022
为改善BP神经网络算法需要大量训练数据和预测精度有限等问题,提出了以输入层、隐含层和输出层为目标的分层优化思路。首先,利用灰色模型良好的小数据趋势辨别能力对输入层数据进行处理,以更好地提炼数据内部蕴含的数学规律,压缩神经网络所需训练数据样本数量;然后,利用遗传算法优越的全局寻优能力确定隐含层的初始权值和阈值,抑制神经网络隐含层参数无法准确获取所导致的误差较大和泛化能力弱的问题;最后,采用蚁群优化算法对输出层数据进行优化,以进一步改善神经网络模型的计算精度。以波动性较强的风电功率进行算例验证,结果表明 ...
朱显辉   +4 more
doaj  

Design and Implementation of Insurance Operating Expenses Monitoring System [PDF]

open access: yes, 2015
费用监控系统主要是实现销售费用差异化配置及调整功能,实现按照基本规则、特殊规则、特批保单规则、阶段性奖励推动系统化跟单配置;在统一的费用管理平台中及时为用户提供费用监控数据,为公司各层级管理人员提供清晰、高效、便捷的费用监控数据。目的是加强财险公司对费用成本管理、合规经营意识,提高资源差异化配置能力,为公司持续健康发展、经营决策提供有力支持。 费用监控系统采用INFORMIX数据库+ETL+J2EE体系结构来搭建系统框架;展示层采用Html+JavaScript+Jquery ...
黄涛
core  

深度对比一类分类在轴承异常检测中的应用

open access: yesZhendong Ceshi yu Zhenduan
针对机械设备的异常数据难以获取和传统异常检测方法容易误报的问题,提出了一种基于深度对比一类分类的无监督异常检测框架,用于检测轴承等关键部件产生异常的时间点。所提出的框架分为2部分。第1部分,针对深度一类分类方法的分布未知与模型坍缩问题,提出一种改进的深度对比一类分类损失,修改了相似度度量方式,并添加了增强样本对之间的相似度约束。在训练过程中,选取4种备选的数据增强方案进行实验和分析,并选取了最佳的数据增强组合,使模型学习得到了更加均匀的正常数据分布。第2部分 ...
doaj   +1 more source

Overview of object detection methods based on LiDAR point cloud under adverse weather conditions [PDF]

open access: yes
With the rapid development of autonomous driving technologies, including sensors, data processing, visual perception, vehicle control, decision making, and artificial intelligence, achieving fully automated Level-5 autonomous driving has become a ...
Heng WANG   +4 more
core   +1 more source

Research on Food Image Classification Algorithm based on Improved MobileNetV3-Large [PDF]

open access: yes
Food image recognition plays a crucial role in food safety monitoring, nutritional analysis, and dietary recommendation systems. However, the diversity, complexity, and external factors such as lighting conditions pose numerous difficulties and ...
HE Wei-chan, QIN Jing-hui, YANG Zhi-jing
core   +1 more source

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