Design and Implementation of Key Project Management System Based on J2EE

目前，区级发改局重点项目管理过程中，遇到以下实际问题，如：一是项目信息收集时间过长。二是难以实时跟踪项目进度。三是信息沟通方式落后，效率低。四是项目存在问题反映滞后，收集困难。五是项目形象进度、项目布局与储备情况缺乏更直观的展示方式。六是项目归档资料管理不完善。七是难以实现对项目的监管。 由于重点项目牵涉面广、时效性要求高、涉及人员多、协同度高、信息量大，为进一步落实好省、市、区重点项目“一月一报告、一月一通报”制度，必须用先进的管理工具以及管理方法协助项目实施人员进行范围、时间、成本和质量的管理，利用计算机技术、网络技术以及数据库技术等，建立项目管理信息系统，实时动态管理重点项目，实现“实...At present, the key project management process in the district office, the following practical problems encountered, such as: first, the project information collection time is too long. Two is difficult to track the progress of the project in real time. Three is the information communication way backward, the efficiency is low. Four is the project has the problem of lagging behind, collecting diff...学位：工程硕士院系专业：软件学院_工程硕士(软件工程)学号：X201323231

Machine learning atomic-scale stiffness in metallic glass

Due to lack of either translational or rotational symmetries at atomic-scale, predicting properties of amorphous materials from static structure is a challenging task. To circumvent the dilemma, a supervised machine-learning strategy via neural network is proposed to predict the atomic stiffness of metallic glass from discretized radial distribution function. The predicted stiffness and its spatial nature are calibrated with molecular dynamics simulations. After which, the origin of atomic constraint is interpreted via the learning structural input. Inadequacy of the model is discussed in terms of incompleteness in both machine-learning configurational space and structural descriptor. (C) 2021 Elsevier Ltd. All rights reserved

快速构建中小型企业信息系统

通过分析中小型企业信息化现状,针对中小型企业信息化需求迫切但资金不足的问题,提出如何快速、低成本地构建中小型企业信息系统的对策。以中小型企业的自身需求为出发点,结合企业的业务流程和管理特征进行快速需求分析,并基于基础设施平台进行业务建模,利用快速开发平台构建系统,边构建边测试,以达到快速构建信息系统的目的