Results 41 to 50 of about 193,229 (203)
, 2001 以小卫星共用平台相配套, 以面向时象的程序设计方法(OOP)为塞础, 提出软件共 用平台的设计. 利用(OOP)的封装性、继承性和多态性, 设计小卫星软件的基本类库, 介绍各 个基本类的具体设计思想 。 最后给出由基本类库生成星载机软件系统的实例。 实践表明, 软件 共用平台对小卫星研制是行之有效的技术 。国家高技术航天领域"863-2" 基金资助项目:编号863-2-5-1 ...
吴翔虎, 程光明, 廖明宏
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Conservation Biology, EarlyView.Abstract Robust estimates of the magnitude of protected species bycatch are essential for effective fisheries management and marine conservation. Existing bycatch estimation methods typically struggle to accurately and precisely estimate the bycatch of rare species as a result of the statistical assumptions necessary to overcome infrequent encounters ...
Christopher Long +3 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2010 汶川地震灾后重建任务艰巨,农村地广人多,更是关键地区.灾民安置的紧迫性要求农居建设先行,相关规划跟进.针对非常规建设程序下的农村规划问题——防震减灾、规划选址、土地整治、产业规划、村民意愿等,以什邡市湔氐镇下院村为例进行研究,通过总结地震灾后农村重建规划经验,试图建立以快速安置为先导的震后农居规划模式.
GAOJun(高峻) +2 more
doaj +1 more source
Conservation Biology, EarlyView.Abstract Global farmland biodiversity is declining rapidly, threatening both natural ecosystems and agricultural production. Although agri‐environmental schemes incentivize farmers to adopt environmentally friendly measures, the spatial mismatch between their local implementation and the landscape‐scale habitat requirements of farmland species has been
Annika L. Hass +5 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue banExploring the mechanisms by which neighborhood built environments impact river water quality can provide new theoretical tools for water environment management and land use planning control. Based on 40 neighborhood samples in Hangzhou as research units,
CHEN Qianhu(陈前虎) +4 more
doaj +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2010 提出了一种基于整体退火遗传算法的动态IR drop分析方法.该方法在经典遗传算法基础上,引入父代竞争和适应函数模拟退火处理,优化了动态分析的输入向量,加快了分析速度.实验表明,与经典遗传算法相比,该方法提高了动态IR drop分析的准确性,提高了算法收敛速度,繁殖代数平均减少了35%,分析结果改进了10%左右.
ZHOUZhi-ming(周知名) +2 more
doaj +1 more source
Conservation Biology, EarlyView.Abstract Protected areas cannot halt biodiversity loss in isolation; integrating them with surrounding human‐dominated landscapes is critical. However, this integration is challenged by substantial landscape heterogeneity at protected area borders, making it difficult to determine cross‐border changes in ecosystem service provision.
Alberto González‐García +7 more
wiley +1 more source
Power-aware mapping based-on genetic algorithm for Network-on-Chip(基于遗传算法的片上网络低功耗映射)
Zhejiang Daxue xuebao. Lixue ban, 2010 随着片上网络(Network-on-Chip)集成度的提高,功耗逐渐成为设计的焦点.本文提出了一种在延时约束条件下,基于遗传算法的片上网络通信链路的低功耗映射算法.该算法使用数组方式编码染色体,并采用非常规码的交叉和变异运算因子.它充分利用遗传算法的群体优势,能快速有效地对通信功耗作优化.实验表明,该算法能平均减少50%左右的通信功耗.
DONGWen-xiao(董文箫) +3 more
doaj +1 more source
The Development and Validation of the Chinese Vocabulary Levels Test
International Journal of Applied Linguistics, EarlyView.ABSTRACT In response to the increasing need for effective Chinese vocabulary assessments, this study developed the Chinese Vocabulary Levels Test (CVLT), a test designed for intermediate‐level Chinese as a second or foreign language (CSL/FL) learners, based on the vocabulary lists (levels 4–6) from the Chinese Proficiency Grading Standards for ...
Shiwei Qi, Ailan Fu
wiley +1 more source
Zhejiang Daxue xuebao. Lixue banDriven by the national strategies of health China and the integrated development of the Yangtze River Delta region, the supply capacity of health care resources has become an important indicator of the equalization of regional public facilities, and ...
陈玉娟(CHEN Yujuan) +4 more
doaj +1 more source