Results 31 to 40 of about 9,645 (120)
Zhejiang Daxue xuebao. Lixue ban, 2017 地理国情统计分析是深度研究地理国情普查数据的首要前提.针对现有单机集中式数据存储与处理方式存在耗时长、效率低甚至不支持的问题，设计了“格网索引+MapReduce”策略，基于规则格网设计普查数据文件的分块组织与分布式存储方式，研制了格网索引与空间分析相结合的双层过滤机制，构建基于MapReduce的地理国情并行统计算法.最后，与无索引MapReduce、ArcGIS平台进行性能对比测试，结果表明：“格网索引+ MapReduce”方法的统计效率远高于ArcGIS平台 ...
LINYaping(林雅萍) +3 more
doaj +1 more source
Geometric methods in the modeling of robot mechanisms(机器人机构建模的几何方法)
Zhejiang Daxue xuebao. Lixue ban, 2006 讨论了经典力学系统中拉格朗日方程的黎曼几何表示（黎曼流形上的牛顿力学）和力学系统拓扑图表示之间的关系，作为应用，讨论了机器人系统的拓扑图表示和动力学模型计算等，与已有的机器人动力学分析办法相比，基于黎曼几何和拓扑图表示方法的动力学分析更加简便，更加适合机器人动力学机械化（自动）建模.
GENGGui-bo(耿贵波) +2 more
doaj +1 more source
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Chlorination roasting has emerged as a promising pyrometallurgical strategy for the selective recovery of lithium from spent lithium‐ion batteries (LIBs). In this study, a natural roasting agent, seawater‐derived chlorides, was employed to selectively extract lithium from spent LiNi0.5Co0.2Mn0.3O2 (NCM523) cathode. MgCl2·6H2O, a main component
Bei‐Lei Zhang +7 more
wiley +1 more source
World Water Policy, Volume 12, Issue 1, February 2026.ABSTRACT Urban expansion significantly impacts flood risk, particularly in rapidly growing areas where impervious surfaces exacerbate surface runoff. This study examines spatial patterns of urban growth and their effects on flood exposure in Mecklenburg County, North Carolina, from 2011 to 2021.
Pegah Madadi, Azad Sadeghi
wiley +1 more source
Evidence for a fisher‐designed solution to manta and devil ray bycatch in tuna fisheries
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Bycatch in global tropical tuna purse seine fisheries represents a significant source of mortality for manta and devil rays (mobulids), which are globally threatened. Use of best handling and rapid release practices on purse seine vessels can substantially reduce mortality and improve vulnerability status for mobulids.
Melissa R. Cronin +12 more
wiley +1 more source
Skills on making practice shifting tables and its application
Huli yanjiu, 2005 [目的 ]探讨实习生轮转表的编排方法 ,制作可长期、反复应用的轮转表 ,达到既能保证实习生的实习要求全面轮转科室 ,又不使科室的实习人员过分集中或发生重叠的目的。 [方法 ]首先根据实习时间将周数用阿拉伯数字升序排出 ,注明每周起止时间 （周数表 ）。然后在实习轮转表上按每周一格的顺序竖排所有实习时间 ,将所实习的科室横排 ,表格内的实习生用阿拉伯数字对应代替并分别涂成彩色。 [结果 ]方便了管理者的工作 ,周数表可用于当年不同学校轮转表编排 ;彩色的数字清晰易辨 ,不仅利于检查 ,而且易于查询 ...
薛坚, 明雅焜
doaj
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Vanadium oxides are deemed competitive cathode candidates for aqueous zinc‐ion batteries (AZIBs), benefited from their high theoretical capacity and multiple crystalline structures. However, the sluggish reaction kinetics, poor reversibility, and high solubility have hindered the practical application.
Xiaoyu Fan +7 more
wiley +1 more source
Telephone Communication, ICT Use, and Digitalization in Healthcare Performance
World Affairs, Volume 189, Issue 1, Spring 2026.ABSTRACT This study explores the impact of telephone communication, ICT use, and digitalization on healthcare performance in sub‐Saharan Africa (SSA), a region facing challenges such as limited infrastructure and resources, geographical barriers, and a high disease burden.
Emmanuel K. Manu +2 more
wiley +1 more source
Shuitu Baochi Xuebao, 2002 利用 198 6年与 2 0 0 0年两期 TM影像以及国家“九五”攻关课题有关数据 ,通过 GIS软件 ARC/INFO与ARCVIEW,将影像进行解译、处理、存储、格式转换、查询等步骤 ,得到研究地区 3期土地利用数据 ,借助办公软件 EXCEL将所获得数据进行景观格局分析、格局演化分析 ;并利用马尔可夫链对该地区景观格局未来的发展趋势进行预测。研究表明 ,景观格局研究方法是进行土地利用空间分布与结构演变研究的有效方法。
马安青 陈东景 等
doaj +2 more sources
Method of fitting radiation dose-effect curves with Excel software [PDF]
, 2023 GAO Chaoxian, HUI Changye
core +1 more source