基于ASP.NET的在线音乐网站设计

拥有独立服务器的音乐网站,由于网络广告、版权等问题,增加了用户的开支成本。研究一种免费、方便使用的音乐分享网站显得十分必要。本文基于一种脚本语言(active server page.NET,ASP.NET)技术设计了在线音乐网站。首先分析了所用的关键技术和功能需求,其次完成了数据库的设计,最后实现了注册登录功能、界面设计、播放音乐、后台管理模块、测试模块等设计。经测试,该音乐分享网站设计基本达到了预期的目标。

Prediction of the flooding area of the northeastern Caspian Sea from satellite images

Studying the dynamic changes in the coastline of the northeastern Caspian Sea is significant since the level of the Caspian is unstable,and the coastline change can cause enormous damage to the ecology,economy,and population of the coastal part of Kazakhstan.In this work,we use remote sensing and Geographic Information System(GIS)technologies to study the changes in the coastline of the northeastern Caspian Sea and predict the extent of flooding with increasing water levels.The proposed methodology for creating dynamic maps can be used to monitor the coastline and forecast the extent of flooding in the area.As a result of this work,the main factors affecting changes in the coastline were identified.After analyzing the water level data from 1988 to 2019,it was revealed that the rise in water level was observed from 1980 to 1995.The maximum sea level rise was recorded at-26.04 m.After that,the sea level began to fall,and between 1996 and 2009,there were no significant changes;the water level fluctuated with an average of-27.18 m.Then,a map of the water level dynamics in the Caspian Sea from 1988 to 2019 was compiled.According to the dynamics map,water level rise and significant coastal retreat were revealed,especially in the northern part of the Caspian Sea and the northern and southern parts of Sora Kaydak.The method for predicting the estimated flooding area was described.As a result,based on a single map,the flooding area of the northeast coast was predicted.A comparative analysis of Landsat and SRTM data is presented.

基于ASP.NET MVC架构在精炼炉RH二级客户端设计与实现

为了实现基于B/S框架的精炼炉RH二级客户端系统,采用基于.NET平台的ASP.NET MVC的Web开发框架,使用了MVC(Model-View-Controller)三层模式,利用基于ADO.NET为基础的Entity Framework对象关系映射器(简称ORM)框架技术,与数据库之间进行交互,Web界面采用Razor视图引擎,使得代码开发更加简洁、规范。基于MVC分层模式开发的精炼炉RH二级客户端系统,具有较好的可复用性、可扩展性,并且易于部署和维护。

Pressure transient characteristics of non-uniform conductivity fractured wells in viscoelasticity polymer flooding based on oil-water two-phase flow

Polymer flooding in fractured wells has been extensively applied in oilfields to enhance oil recovery.In contrast to water,polymer solution exhibits non-Newtonian and nonlinear behavior such as effects of shear thinning and shear thickening,polymer convection,diffusion,adsorption retention,inaccessible pore volume and reduced effective permeability.Meanwhile,the flux density and fracture conductivity along the hydraulic fracture are generally non-uniform due to the effects of pressure distribution,formation damage,and proppant breakage.In this paper,we present an oil-water two-phase flow model that captures these complex non-Newtonian and nonlinear behavior,and non-uniform fracture characteristics in fractured polymer flooding.The hydraulic fracture is firstly divided into two parts:high-conductivity fracture near the wellbore and low-conductivity fracture in the far-wellbore section.A hybrid grid system,including perpendicular bisection(PEBI)and Cartesian grid,is applied to discrete the partial differential flow equations,and the local grid refinement method is applied in the near-wellbore region to accurately calculate the pressure distribution and shear rate of polymer solution.The combination of polymer behavior characterizations and numerical flow simulations are applied,resulting in the calculation for the distribution of water saturation,polymer concentration and reservoir pressure.Compared with the polymer flooding well with uniform fracture conductivity,this non-uniform fracture conductivity model exhibits the larger pressure difference,and the shorter bilinear flow period due to the decrease of fracture flow ability in the far-wellbore section.The field case of the fall-off test demonstrates that the proposed method characterizes fracture characteristics more accurately,and yields fracture half-lengths that better match engineering reality,enabling a quantitative segmented characterization of the near-wellbore section with high fracture conductivity and the far-wellbore section with low fracture conductivity.The novelty of this paper is the analysis of pressure performances caused by the fracture dynamics and polymer rheology,as well as an analysis method that derives formation and fracture parameters based on the pressure and its derivative curves.

Response Mechanisms to Flooding Stress in Mulberry Revealed by Multi-Omics Analysis

Abiotic stress,including flooding,seriously affects the normal growth and development of plants.Mulberry(Morus alba),a species known for its flood resistance,is cultivated worldwide for economic purposes.The transcriptomic analysis has identified numerous differentially expressed genes(DEGs)involved in submergence tolerance in mulberry plants.However,a comprehensive analyses of metabolite types and changes under flooding stress in mulberry remain unreported.A non-targeted metabolomic analysis utilizing liquid chromatographytandem mass spectrometry(LC-MS/MS)was conducted to further investigate the effects of flooding stress on mulberry.A total of 1,169 metabolites were identified,with 331 differentially accumulated metabolites(DAMs)exhibiting up-regulation in response to flooding stress and 314 displaying down-regulation.Pathway enrichment analysis identified significant modifications in many metabolic pathways due to flooding stress,including amino acid biosynthesis and metabolism and flavonoid biosynthesis.DAMs and DEGs are significantly enriched in the Kyoto Encyclopedia of Genes and Genomes(KEGG)pathways for amino acid,phenylpropanoid and flavonoid synthesis.Furthermore,metabolites such as methyl jasmonate,sucrose,and D-mannose 6-phosphate accumulated in mulberry leaves post-flooding stress.Therefore,genes and metabolites associated with these KEGG pathways are likely to exert a significant influence on mulberry flood tolerance.This study makes a substantial contribution to the comprehension of the underlying mechanisms implicated in the adaptation of mulberry plants to submergence.

基于UML和ASP的艺术类考试成绩查询系统设计与实现

本文采用统一建模语言UML对考试成绩查询系统进行建模,设计了基于UML的艺术类考试成绩查询系统模型,利用ASP技术实现考试成绩查询系统,大大提高艺术类考试成绩管理工作的效率和质量。

Optimization of Gas-Flooding Fracturing Development in Ultra-Low Permeability Reservoirs

Ultra-low permeability reservoirs are characterized by small pore throats and poor physical properties, which areat the root of well-known problems related to injection and production. In this study, a gas injection floodingapproach is analyzed in the framework of numerical simulations. In particular, the sequence and timing of fracturechanneling and the related impact on production are considered for horizontal wells with different fracturemorphologies. Useful data and information are provided about the regulation of gas channeling and possible strategiesto delay gas channeling and optimize the gas injection volume and fracture parameters. It is shown that inorder to mitigate gas channeling and ensure high production, fracture length on the sides can be controlled andlonger fractures can be created in the middle by which full gas flooding is obtained at the fracture location in themiddle of the horizontal well. A Differential Evolution (DE) algorithm is provided by which the gas injectionvolume and the fracture parameters of gas injection flooding can be optimized. It is shown that an improvedoil recovery factor as high as 6% can be obtained.

Effects of unilateral superimposed high-frequency jet ventilation on porcine hemodynamics and gas exchange during one-lung flooding

BACKGROUND Superimposed high-frequency jet ventilation(SHFJV)is suitable for respiratory motion reduction and essential for effective lung tumor ablation.Fluid filling of the target lung wing one-lung flooding(OLF)is necessary for therapeutic ultrasound applications.However,whether unilateral SHFJV allows adequate hemodynamics and gas exchange is unclear.AIM To compared SHFJV with pressure-controlled ventilation(PCV)during OLF by assessing hemodynamics and gas exchange in different animal positions.METHODS SHFJV or PCV was used alternatingly to ventilate the non-flooded lungs of the 12 anesthetized pigs during OLF.The animal positions were changed from left lateral position to supine position(SP)to right lateral position(RLP)every 30 min.In each position,ventilation was maintained for 15 min in both modalities.Hemodynamic variables and arterial blood gas levels were repeatedly measured.RESULTS Unilateral SHFJV led to lower carbon dioxide removal than PCV without abnormally elevated carbon dioxide levels.SHFJV slightly decreased oxygenation in SP and RLP compared with PCV;the lowest values of PaO_(2) and PaO_(2)/FiO_(2) ratio were found in SP[13.0;interquartile range(IQR):12.6-5.6 and 32.5(IQR:31.5-38.9)kPa].Conversely,during SHFJV,the shunt fraction was higher in all animal positions(highest in the RLP:0.30).CONCLUSION In porcine model,unilateral SHFJV may provide adequate ventilation in different animal positions during OLF.Lower oxygenation and CO_(2) removal rates compared to PCV did not lead to hypoxia or hypercapnia.SHFJV can be safely used for lung tumor ablation to minimize ventilation-induced lung motion.

基于ASP.NET的藏文文献数字化建设平台

藏文文献作为藏学研究的珍贵材料,具有极高的文物价值,传承了藏族人民的历史、文化、传统和智慧。然而,由于保存条件、传承方式、语言障碍等诸多因素,藏文文献的保护和传承面临许多困难和挑战。为了更好地保护和传承藏文文献,本文设计了数字化建设平台,方便人们在网络上进行查阅、学习和研究。藏文文献数字化建设的背景是多种因素共同作用的结果。

基于ASP.NET的高职院校毕业设计选题系统设计

针对高职院校毕业设计选题现状,文章设计了基于ASP.NET的毕业设计选题系统。该系统采用浏览器/服务器(Browser/Server,B/S)构架,使用SQL Server数据库进行开发,以模块化、功能化为原则,包括管理员模块、教师模块和学生模块,经过调试和验证,实现了系统要求的全部功能。

基于ASP.NET的高校毕业论文管理系统设计与实现

针对高校毕业论文传统管理方法存在的问题,以昆明幼儿师范高等专科学校为例,分析了毕业论文管理上的难点,并提出了相应的解决方案。使用用例图设计了系统的主要功能,使用状态图设计了系统的主要流程,同时构建了系统数据库。使用ASP.NET语言实现了高校毕业论文管理系统中指导教师出题和学院审核模块、上传开题报告和论文模块、学院分配评审教师模块和教师审核论文模块。系统的应用能够规范高校毕业论文的管理,提高工作效率。

基于ASP.NET的C语言练习系统的设计与实现

当前,网络技术迅速发展,在线系统的应用逐渐普及。然而,一些高校在C语言程序设计课后练习方面仍采用传统的人工出题和批改方式,效率较低。为了提高学生的学习效率并减轻教师的批改压力,文章开发了一款基于ASP.NET的C语言练习系统。该系统运用了HTML、Ajax等技术,并采用SQLServer数据库设计了在线练习系统网站。该系统的核心功能在于教师能够通过后台管理学生信息、编辑和添加题目、查看学生成绩及题目练习情况。经过严格的测试,该系统运行稳定,能显著提高学生的学习效率,减轻教师的批改压力。

基于ASP.NET MVC框架的绿色建筑协会网站的设计与实现

基于ASP.NET MVC框架、Bootstrap前端框架和MySQL数据库等技术,研究某市绿色建筑与建筑节能行业协会网站的设计与实现。通过分析协会网站的需求,设计其整体架构、数据模型和功能实现,利用Bootstrap前端开发框架,采用响应式设计,确保网站能够在不同设备上自适应显示。

课程思政元素在“ASP.NET项目开发”课程建设中的融合与实践

文章通过对“ASP.NET项目开发”课程设计的分析和研究,提出了将思政教育元素融入课程建设中的思路和方法。通过具体案例,探讨了课程思政元素在“ASP.NET项目开发”课程中的实际应用效果。实践证明,将课程思政元素融入“ASP.NET项目开发”课程建设中,可以有效提高学生的思想道德素质和职业道德水平,促进学生的全面发展。

基于ASP.NET的大学生跳蚤市场服务平台设计

随着人们生活水平的日渐提高,在校大学生拥有的学习或考试资料、电子产品、体育用品等闲置物品也不断增多。随着信息化技术迅速发展,传统摆摊式二手交易市场已不能满足当代大学生处理二手资源的需求。文章设计了一个适用所有高校的大学生跳蚤市场服务平台,根据用户不同权限,将用户划分为超级管理员、校级管理员和普通会员三个层级。超级管理员可为任何一所高校分配校级管理员权限,管理本校自行注册的普通会员所发布的二手商品信息和求购需求信息。

基于ASP.NET的高校党建工作绩效评价管理系统设计

通过对高校党建工作调研,开发了一个采用MVC开发模式、B/S架构,以SQL作为数据存储技术,基于Asp.net技术的高校党建工作绩效评价管理系统,实现了自我评价、他人评价、评价分析、系统设计等常用功能。通过测试表明,系统设计合理,运行稳定,指标设置灵活,保证了党员工作绩效评价的科学、公正,提高了考评管理的效率。

A Novel Interacting Multiple-Model Method and Its Application to Moisture Content Prediction of ASP Flooding

In this paper,an interacting multiple-model(IMM)method based on datadriven identification model is proposed for the prediction of nonlinear dynamic systems.Firstly,two basic models are selected as combination components due to their proved effectiveness.One is Gaussian process(GP)model,which can provide the predictive variance of the predicted output and only has several optimizing parameters.The other is regularized extreme learning machine(RELM)model,which can improve the overfitting problem resulted by empirical risk minimization principle and enhances the overall generalization performance.Then both of the models are updated continually using meaningful new data selected by data selection methods.Furthermore,recursive methods are employed in the two models to reduce the computational burden caused by continuous renewal.Finally,the two models are combined in IMM algorithm to realize the hybrid prediction,which can avoid the error accumulation in the single-model prediction.In order to verify the performance,the proposed method is applied to the prediction of moisture content of alkali-surfactant-polymer(ASP)flooding.The simulation results show that the proposed model can match the process very well.And IMM algorithm can outperform its components and provide a nice improvement in accuracy and robustness.

基于ASP.NET后台的陪诊小程序开发与实现

在分析陪诊小程序平台研究背景的基础上,阐明了陪诊小程序平台建设的意义和作用,确定陪诊小程序平台的功能需求。在此基础上,进行数据库概念设计和数据表设计,实现了陪诊小程序,为陪诊小程序平台的研究和发展提供参考。

A differential wide field electromagnetic method and its application in alkaline-surfactant-polymer(ASP) flooding monitoring

To improve effectiveness of ASP flooding, it is necessary to establish a reliable parameter design and tracking adjustment method to monitor the process of oil displacement. A differential wide field electromagnetic method was proposed and applied to the ASP displacement monitoring test in a block of the Daqing Oilfield. In the process of ASP flooding, the electromagnetic field was measured many times. The data acquired before the ASP flooding were set as the background field, and the resistivity model was obtained by inversion. Then, the resistivity data were calibrated by logging data and the resistivity model was established. Finally, the range and front of ASP flooding were deduced with the residual gradient from the spatial domain first-order difference of the resistivity model. Production data of well groups in this block have proved that this method can work out the range and front of ASP flooding accurately, providing support for optimization of ASP flooding parameters.

基于ASP.NET的大学生求职招聘服务平台的设计与实现

当前,计算机网络发展迅速,越来越多的大学生选择通过网络平台获知招聘信息,而高校也会将与本校毕业生专业对口的招聘信息发布到求职招聘服务平台上。本系统基于ASP.NET技术开发,采用SQL Server设计数据库,实现了集院校信息管理、用户信息管理、求职招聘信息管理、公告信息管理等功能于一体的,同时可服务于全国所有高校的大学生求职招聘的服务平台。