Results 41 to 50 of about 16,781 (160)
高原地区器官剂量调制技术在CT平扫中对女性盆腔的保护价值及对图像质量的影响
Zhongguo shiyan zhenduanxue, 2022 目的 探讨高原地区器官剂量调制(ODM)技术在女性盆腔CT平扫中对性腺区辐射剂量和图像质量的影响。方法 收集临床需要行盆腔CT平扫检查的女性患者200例，随机分为实验组和对照组。对照组100例，采用常规盆腔CT平扫，实验组100例，开启ODM技术进行盆腔CT扫描，记录患者性腺区域前、左、后、右4个方向管电流、平均管电流、容积CT剂量指数(CTDIvol)、剂量长度乘积(DLP),并计算有效剂量(ED)。由两位资深影像科医师采用5分法对两组CT图像质量进行主观评分 ...
杨谨瑞 +4 more
doaj
Design and Implementation of A Teaching Monitoring System [PDF]
, 2014 随着信息技术的迅速发展，计算机网络已经普及到各个行业。而如何充分利用计算机网络配合教育者加强教育活动的管理并做出更好的决策显得尤为重要。随着教育的不断扩展和深入，急需能更实时更有效地反应教学过程中出现的问题的平台。在日新月异的信息时代，提供一个教学监控的信息平台将会大大提高教学成绩。 针对新疆某高校的需求，设计一个教学监控系统的想法应运而生，该系统采用基于J2EE平台的Spring+Struts+Hibernate架构即SSH架构实现，使用JSP技术、Struts框架技术实现界面 ...
葛晓凡
core
Attainment Pairing Effects on Cognitive Conflict in Technology‐enhanced EFL Cooperative Tasks
International Journal of Applied Linguistics, Volume 36, Issue 2, Page 1594-1605, May 2026.ABSTRACT This study examines how attainment pairing (high‐high versus high‐low versus low‐low attainment) impacts English as a Foreign Language (EFL) learner engagement during technology‐enhanced cooperative writing tasks. Seventy‐eight Chinese university learners formed 39 dyads (13 pairs per group) via Tencent Meeting.
Ying Liu, Allen Thurston
wiley +1 more source
基于数据与知识双驱动的TransSeisNet地震活动性预测
Dizhen xuebao随着地震目录记录数据的不断增长，传统统计方法在数据利用层面存在较大局限性。机器学习方法相较于传统方法的优势在于能够有效处理大量数据，但存在不可解释性问题以及缺少相关的物理约束。本文提出了一种基于地震目录数据与统计地震学知识双驱动的TransSeisNet模型用于解决上述问题。该模型以Transformer为核心架构，基于地震时间点数据进行数据驱动建模，并且为了增强模型的物理合理性，TransSeisNet在输出层和损失函数中融入了地震经验知识约束。模型最终输出相关地震活动性参数并对未来地震活动进行预测 ...
Xuejian Wang +7 more
doaj +1 more source
Probabilistic inverse-analysis and reliability prediction of rainfall-induced landslides for slope with multi-source information [PDF]
Probabilistic inverse-analysis is an essential approach to infer statistical characteristics of uncertain soil parameters, making the slope reliability assessment closer to engineering reality.
Faming HUANG +4 more
core +1 more source
Threats to and management of Natura 2000 protected areas relative to agricultural practices
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract The Natura 2000 (N2K) network combines biodiversity protection and socioeconomic targets. Human activities, such as agricultural practices, can affect biodiversity in N2K sites in diverse ways. Limiting activities with negative impacts while enforcing land management that supports biodiversity is crucial for effective conservation.
Giorgio Zavattoni +7 more
wiley +1 more source
Study on Remote Sensing Information Model of Primary Productivity for Medium and Small Scal Watershed——A Case Study in Jiulong River Watershed [PDF]
, 2004 从生态系统的角度，宏观而又翔实地记录相应空间生态状况的生态系统监测体系必须利用高效、实时的监测手段，这是实施流域生态系统管理的必要基础工作。本研究以基于生理生态学、遥感信息模型理论、地统计学分析和地理信息系统技术综合应用为基础，探讨支持中小流域的生态环境管理的遥感监测工作方式。同时，也为挖掘遥感信息在生产建设中的深层次利用潜力，使之直接应用于生态监测的日常业务提出可供借鉴的参考。初级生产力及其变化，是流域生态系统管理的关键指标之一。该指标可以度量生态系统能力，反映整个系统的活力，生产力高低、变化幅度 ...
孙飒梅
core
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract Consumer demand for ivory perpetuates the unsustainable and illegal killing of African elephants and other wildlife species. Interventions that aim to change consumer behavior are increasingly recognized as a crucial element of demand management. However, poor design and implementation have limited their effectiveness.
Molly R. C. Brown +2 more
wiley +1 more source
Analysis and Design of Teaching Quality Management System for Colleges [PDF]
, 2013 随着我国社会转型和经济结构调整发展，高校人才培养质量面临着越来越高的要求。传统的教学质量管理手段已不适应高校现行的培养过程。 本项目源于某高校教学质量管理的实际需要，探讨构建一个适用于高校的教学质量管理系统。该系统将有效处理大量教学质量相关信息，及时反映教学过程中存在的问题，有关领导和教学管理人员能及时了解学生出勤、请假、教学评价、问卷调查情况，从而有针对性地开展工作，促进教学质量管理工作的改进和教学质量的不断提高。 该系统基于J2EE平台的Spring+Struts+Hibernate架构 ...
王建刚
core
Informing spatial conservation prioritization with species’ traits
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract New Guinea, the most botanically diverse island on the planet, is the location for one of the boldest conservation initiatives. The Manokwari Declaration aims to achieve 70% conservation designation for the Bird's Head Peninsula. This is 40% higher than the 2022 Global Biodiversity Framework target.
Liam A. Trethowan +27 more
wiley +1 more source