Design and Implementation of Trade Enterprise’s Invoicing System Based on .NET

随着信息技术的不断发展，企业也非常重视进销存信息系统对企业的支撑作用，财力投入从原来的几万元逐步提高到几十万，进销存管理也开始走向成熟阶段，围绕进销存管理开展信息化产品研发已经成为信息化企业的战略布局。 进销存系统是一个以采购管理、销售管理、库存管理为核心，通过整合企业资源帮助企业管理者改善企业运营水平，提高企业核心竞争力的管理信息系统。 论文首先介绍了进销存系统的现状和发展趋势，介绍了课题研发过程中使用到的方法和关键技术，比如UML语言与要素、用例图、活动图以及软件体系结构等。然后进行需求分析，需求分析主要由可行性、用例、功能需求、性能需求和数据需求组成。接着进行系统设计，设计部分主要包...With the constantly development of information technology, enterprises have attached great important to the effect of invoicing information system on supporting the enterprises, and the financial resources have also been continually invested in, as a result, the invoicing management also has begun to move toward a mature level. The research and development on the informationization products which ...学位：工程硕士院系专业：软件学院_工程硕士(软件工程)学号：X201323026

Prediction of Energy Resolution in the JUNO Experiment

International audienceThis paper presents the energy resolution study in the JUNO experiment, incorporating the latest knowledge acquired during the detector construction phase. The determination of neutrino mass ordering in JUNO requires an exceptional energy resolution better than 3% at 1 MeV. To achieve this ambitious goal, significant efforts have been undertaken in the design and production of the key components of the JUNO detector. Various factors affecting the detection of inverse beta decay signals have an impact on the energy resolution, extending beyond the statistical fluctuations of the detected number of photons, such as the properties of liquid scintillator, performance of photomultiplier tubes, and the energy reconstruction algorithm. To account for these effects, a full JUNO simulation and reconstruction approach is employed. This enables the modeling of all relevant effects and the evaluation of associated inputs to accurately estimate the energy resolution. The study reveals an energy resolution of 2.95% at 1 MeV. Furthermore, the study assesses the contribution of major effects to the overall energy resolution budget. This analysis serves as a reference for interpreting future measurements of energy resolution during JUNO data taking. Moreover, it provides a guideline in comprehending the energy resolution characteristics of liquid scintillator-based detectors