Results 11 to 20 of about 1,233 (164)

Design and Implementation for Personnel Managemen System for a Power Supply Company [PDF]

open access: yes, 2015
随着计算机技术的高速发展,系统管理信息化已经应用于各行各业。用纸笔来管理企业内部的方法所表现出来的种种劣势,人们慢慢意识到管理现代化已成为当代社会发展的一股不可抗拒的洪流。目前,某供电公司的人事管理还处于传统的手工管理阶段,为了提高管理效率,节约人力资源,推动单位人事管理走向科学化、规范化,设计一套供电公司的人事管理系统势在必行。 本文针对供电公司人员信息的特点、管理过程中的实际需要、实用性、便捷性及经济性,设计和实现了基于MVC架构技术的信息管理平台、以.Net为开发语言、采用B ...
项佳斐
core  

Evolution of research on global amphibian declines

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract In the late 1980s, the scientific community became aware of severe, enigmatic amphibian population declines. These declines triggered a wave of research focused on quantifying their extent and identifying key drivers. We used text‐analysis techniques, including topic modeling and geoparsing, to examine the evolution of research focused on ...
Jordann Crawford‐Ash   +6 more
wiley   +1 more source

Design and Implementation of Terrestrial Digital TV Frequency Management System [PDF]

open access: yes, 2015
从20世纪六七十年代开始,我国各级广电部门在国家新闻出版广电总局的指导下,建成了全国范围内的中央、省、市、县级广播电视覆盖网;把党和政府的声音送到了普通百姓家,极大的丰富了广大人民群众的精神生活。2012年,总局提出了地面数字电视广播覆盖网的发展规划,广播电视数字化已成为发展的必然趋势,模拟电视向数字化迈进已摆上重要日程。如何有效利用现有的无线电频率资源,减少各类广播电视台站之间的干扰,进而保障农村广播电视公告服务和地面数字电视业务的健康发展,是模拟向数字过渡期间摆出来的难题。只有通过科学技术的手段 ...
谭红
core  

Clip Voice: Misogyny and the Renegotiation of a Gendered Vocal Style in Chinese Digital Discourse

open access: yesJournal of Sociolinguistics, Volume 29, Issue 5, Page 348-359, November 2025.
ABSTRACT The participatory culture of social media allows women's voices to be heard but also parodied and policed. On Chinese social media platforms, where performers rapidly adopt and transform vocal trends for engagement, discourse on gendered vocal styles has proliferated.
Zichuan Yu, Rebecca Lurie Starr
wiley   +1 more source

A Business Plan for YDT Ltd [PDF]

open access: yes, 2015
民以食为天。潮汕菜所具备的健康美味的特点,让它在当今社会越来越受到推崇。作为移民城市的深圳,稍微与潮汕菜系沾边的餐饮企业都获得了大量顾客的喜爱,也存在着可以细分的创业机会。本论文应用创业管理理论,在对市场调研和分析的基础上,提出了深圳粤澄泰饮食有限公司创业计划书。研究发现,本创业项目应该定义为中高档的特色餐饮企业,主要市场定位在珠三角一带经济发达地区。通过产品的质量保证和服务水平的提升,同时建立属于自己的后台集中处理配送中心,能够形成公司的核心竞争力。粤澄泰投资首年确定投入成本80万元,内部收益率为97%
卢俊瑄
core  

Clinical utility of ultrasonography in pediatric and adolescent gynecology: retrospective review of 1313 ultrasound examinations

open access: yesUltrasound in Obstetrics &Gynecology, Volume 65, Issue 2, Page 226-234, February 2025.
ABSTRACT Objectives Ultrasound is the first‐line imaging modality of the pelvis in the pediatric and adolescent gynecology (PAG) population. Ultrasound findings in pre‐ and postpubertal PAG patients differ from those in adults. Diagnostic models for adnexal pathology have not been validated in this cohort.
N. Cooper   +15 more
wiley   +1 more source

The Key Process of Colonization and Spread of Sonneratia apetala introduced in the Local Mangrove Wetland [PDF]

open access: yes, 2016
无瓣海桑(Sonneratiaapetala)于20世纪80年代引入中国后,由于其具备速生性、抗逆性等生理特点,被广泛种植于中国华南沿海地区,随着种植面积的增大,人们对于无瓣海桑的入侵潜力产生了担忧。本研究选择雷州湾北家村红树林保护区为主要研究区域,通过野外调查、野外种植、室内对照的方式研究了无瓣海桑的果实凋落、果实漂浮、土壤种子库分布、林窗内无瓣海桑的定植、光胁迫下的生理响应,为无瓣海桑防治积累了科学的理论依据。本研究结果如下: 无瓣海桑的果实一年内有两次成熟期,秋季为无瓣海桑成熟的主要季节 ...
刘凡
core  

Using life history traits to assess climate change vulnerability in understudied species 利用生活史特征评估研究不足物种的气候变化脆弱性

open access: yesIntegrative Conservation, Volume 3, Issue 4, Page 368-381, December 2024.
Lack of species information complicates understanding climate change vulnerability, but life history traits can be proxies for missing information. In the north‐central United States, useful traits for discriminating vulnerability of amphibians include range size, clutch size, diel activity patterns, and habitat breadth.
Ross K. Hinderer   +2 more
wiley   +1 more source

Ecological study on plankton and water quality bioassessment of the Jiulong River Estuary [PDF]

open access: yes, 2015
本文以环保公益性行业科研专项“入海河口区水质标准和水环境质量评价方法研究(NO:201309007)”2013年9月~2014年4月4个季节的调查数据为基础,对九龙江口浮游生物的种类组成、时空分布、优势种、环境影响因素等进行了研究;基于环境因素和地理水文概况进行了区域划分,探讨了不同分区浮游生物的群落结构特点并对其水质进行了生物学评价。 主要的研究成果如下: 1、九龙江口浮游植物的种类组成和数量变化 本次调查共鉴定浮游植物150种(含变种和变型),隶属于5门63属,其中以硅藻占主导地位 ...
吴白洁
core  

Patterns of recovery in extant and extirpated seabirds after the world's largest multipredator eradication

open access: yesConservation Biology, Volume 38, Issue 4, August 2024.
Abstract Eradicating invasive predators from islands can result in substantial recovery of seabirds, but the mechanisms that drive population changes remain poorly understood. Meta‐analyses have recently revealed that immigration is surprisingly important to the recovery of philopatric seabirds, but it is not known whether dispersal and philopatry ...
Jeremy P. Bird   +2 more
wiley   +1 more source

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