Results 31 to 40 of about 6,719 (166)

Design and Implementation of Wireless Dining System Based on Android [PDF]

open access: yes, 2016
移动互联网的出现逐步改变人们传统的生活方式,随着智能手机的广泛普及,创新移动终端应用异军突起,各行业巨头都在加紧布局,加快行业的改造升级。餐饮业作为传统行业,随着餐饮行业竞争局面不断加剧,如何更好地贴合用户需求,实现商家用户之间良好的互动沟通,在未来发展中把握先机成为各企业亟待解决的问题。 基于上述分析,本文在调研当前国内外相关餐饮业APP开发及应用现状的基础上,设计并实现了一套简单易用、能够迎合用户社交需求,提供即时分享的基于Android平台的移动餐饮APP。论文遵循软件工程相关规范 ...
朱宇辰
core  

Complementing urban agriculture and green spaces is important for ecosystem functions and biodiversity in cities: A systematic review and meta‐analysis

open access: yesEcological Solutions and Evidence, Volume 6, Issue 3, July–September 2025.
Urban agriculture is in an intermediate state between traditional urban green spaces and conventional rural farms in terms of environmental impacts, so that its contribution to urban sustainability requires complementarity with other green spaces. Abstract As cities expand, they encroach on agricultural land, impacting food production and natural ...
Zeyu Li   +8 more
wiley   +1 more source

Design and Implementation of Real Estate Information System [PDF]

open access: yes, 2015
从2000至今,中国的计算机技术发生了翻天覆地的变化,与此同时,房地产行业顺应计算机的发展也发生了重要的变化。信息化管理顺应而生,所谓信息化管理是只利用计算机的技术对其他行业的信息进行整合、管理的手段。房地产的信息化管理就是利用计算机技术开发房地产信息系统对房地产的信息进行整合,比如哪些房屋已经销售,哪些正在待售,实际盈利多少,支出多少等等,管理人员可以根据这个系统对房地产的运营情况进行实时的了解,实时掌控房地产具体的运营情况。最近这几年,房地产的发展十分的迅猛 ...
周洁
core  

Evaluating use of two‐step International Ovarian Tumor Analysis strategy to classify adnexal masses identified in pregnancy: pilot study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 64, Issue 6, Page 808-817, December 2024.
ABSTRACT Objectives The primary aim was to validate the International Ovarian Tumor Analysis (IOTA) benign simple descriptors (BDs) followed by the Assessment of Different NEoplasias in the adneXa (ADNEX) model, if BDs cannot be applied, in a two‐step strategy to classify adnexal masses identified during pregnancy. The secondary aim was to describe the
J. Barcroft   +8 more
wiley   +1 more source

Design and Implementation of Books Loan Management Information System [PDF]

open access: yes, 2014
随着科学技术的飞速发展,应运而生了各种低成本管理系统,它们具有效率高,精度高且易于操作。各种管理系统在几十年的发展中日趋成熟,已成为各行业中不可缺少的一部分。图书借阅管理信息系统是对图书馆日常功能管理的有效管理工具。它能更有效地帮助工作人员进行图书馆日常工作,并且鲜有错误。综上所述,图书借阅管理信息系统的设计是十分必要且有一定的实用价值。 数据处理工作由手工操作的话,工作量非常大,所以效率低下,并且出错率高,出错后要更改之后的很多内容,才能保证往后的工作正常进行 ...
额尔登吾鲁
core  

Eyes on nature: Embedded vision cameras for terrestrial biodiversity monitoring

open access: yesMethods in Ecology and Evolution, Volume 15, Issue 12, Page 2262-2275, December 2024.
Abstract We need comprehensive information to manage and protect biodiversity in the face of global environmental challenges, and artificial intelligence is required to generate that information from vast amounts of biodiversity data. Currently, vision‐based monitoring methods are heterogenous; they poorly cover spatial and temporal dimensions, overly ...
Kevin F. A. Darras   +11 more
wiley   +1 more source

模块化多电平动态电压补偿器的控制策略研究

open access: yesGaoya dianqi, 2016
提出一种模块化多电平结构应用于动态电压补偿器的新技术。模块化多电平结构易扩展,便于实现,且具有公共直流母线,能够实现四象限运行。文中对模块化多电平动态电压补偿器的拓扑结构和工作特性进行介绍和理论分析。通过对几种补偿策略、子模块电容电压控制策略和MMC逆变单元调制策略的对比介绍,提出了适用于模块化多电平动态电压补偿器的同相补偿、子模块电容电压分层控制和载波移相PWM调制的控制策略。利用PSCAD软件搭建仿真模型,通过仿真分析,验证了模块化多电平动态电压补偿器控制策略的有效性和可行性。
王宝安, 邢珏, 商姣, 万杰星
doaj  

模块化多电平变换器电热耦合模型研究

open access: yesGaoya dianqi, 2022
模块化多电平变换器(MMC)的电热耦合模型对于系统结温监测、可靠性分析、寿命预测等具有重要意义。文中提出了一种合理简化的模块化多电平变换器电热耦合模型,首先基于后退欧拉法,建立MMC子模块的等效电路;然后根据戴维南电路等效方法,建立了三相MMC等效电路;其次,根据器件损耗特性和热阻抗特性建立MMC的电热耦合模型;最后,通过仿真和实验结果,验证了所提MMC电热耦合模型的正确性,该模型可以用来做MMC特性研究和可靠性分析。
张玉斌, 杨张斌, 温英科, 阮琳
doaj  

A Study on Experiential Marketing to Ribbon Culture -take YAMA Ribbon and Bows Corporation for Example [PDF]

open access: yes, 2015
技术的快速发展带来了市场经济环境的变化,以互联网为典型的新格局使新的营销渠道和分销形式不断出现,传播载体的数量如雨后春笋,品牌竞争随处可见并日趋激烈。这些新营销渠道和分销方式的出现恰恰体现着如今是一个机会和威胁同时并存的崭新世界。明智的企业家们已经意识到顾客价值的转移不可避免,顾客们无时无刻不在体验着大量品牌信息,体验营销成为大势所趋的品牌建构工具。正如马云在乌镇演讲中提到的,现在已经从IT时代变成了DT时代,在这个时代,大家非常注重自身的感官,也就是一个非常重要的特征是体验,体验很有意思 ...
薛叶
core  

Network structure and taxonomic composition of tritrophic communities of Fagaceae, cynipid gallwasps and parasitoids in Sichuan, China 中国四川的壳斗科、瘿蜂、和寄生蜂之三級营养生物群落的结构和组成

open access: yesInsect Conservation and Diversity, Volume 17, Issue 6, Page 1046-1071, November 2024.
We quantified previously unstudied tritrophic gall communities on Fagaceae in Sichuan, China, testing for ‘bottom‐up’ effects of host plant diversity on plant–herbivore and plant–parasitoid interactions. We sampled 176 cynipid gall morphotypes from 23 host plant species, yielding 64 parasitoid morphospecies.
Zhiqiang Fang   +18 more
wiley   +1 more source

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