Analysis on Potential Conflict Frequency of Intersected Air Routes in Terminal Airspace Design

In order to obtain accurate conflict risks in terminal airspace design,the concept and calculation model of potential conflict frequency for intersected routes are proposed.Conflict frequency is represented by the product of horizontal conflict frequency and vertical conflict probability.The horizontal conflict frequency is derived from the probability density distribution of conflicts in a period of time.Based on the recorded radar trajectory data,the concept and model of ROUTE distance are proposed,and the probability density function of aircraft height at a specified ROUTE distance is deduced by kernel density estimation.Furthermore,vertical conflict probability and its horizontal distribution are achieved.Examples of three intersected arrival and departure route design schemes are studied.Compared with scheme 1,the conflict frequency values of the other two improved schemes decrease to53% and 24%,respectively.The results show that the model can quantify potential conflict frequency of intersected routes.

The decision-making dimension of the systems approach to management

Theoretically, a system is anything that is made up of various parts. Theses parts are known as subsystems. At every point in time, these parts should work in harmony so that objectives could be achieved successfully. A system could be inanimate or animate item. Examples of inanimate systems include vehicles, households, computer and institution. Examples of animate systems are human being, animal and insect. Both inanimate and animate systems are made up of various subsystems. Such subsystems are required to co-operate, collaborate and work together so that set objectives could be achieved successfully. From practical managerial point of view, business organizations are equally systems that are made up of subsystems which may take the form of departments, sections and/or units. It is supposed to be collaborations among the managers and other members in these departments, sections and/or units so that organizational objectives could be achieved. All the managers in various departments, sections and/or units are required to work together as a team to make the system coherent and closely-knit to make disintegration impossible. Closely related to the systems approach to management is managerial decision-making. Decision-making is a very important function of every manager＇s job. The success and failure stories of many organizations are the result of the quality of decisions made. Many organizations have survived turbulent conditions. Others have also collapsed in spite of favourable conditions. These varying conditions are the result of the quality of decisions made by managers at positions of authority and responsibility. Therefore the systems approach to management enjoins top managers in particular to be very circumspect and cautious in certain decision-making activities. This is because, the quality of decision a manager makes can go a long way to determine the success or failure story of an organization as exemplified in the case study in this paper.

Rationality of escalating commitment in information systems project management： An inter-disciplinary perspective

Escalation of commitment has been linked to losses in information systems （IS） projects. Understanding the nature and the rationality of escalation allows the firm to promote optimal project management practices. This study takes an inter-disciplinary approach and draws on research from economics and management to create a model of irrational escalation and a model of rational escalation. The forces that contribute to irrational escalation include the responsibility of the same manager for both the project selection and project continuation decisions that create proneness to self-justification, the potential for negative framing of decision options due to large sunk costs, the proximity of project completion and the presence of organizational inertia. Identifying these irrational escalation factors helps design appropriate de-escalation techniques. The rational escalation model draws on the real option theory and the bandit process theory to identify conditions when project continuation is justified by the value of information and the value of flexibility that the firm receives from continuing the project.

Human Health Risk Assessment in Shahid Rajaee Container Terminal

As the ports play a prominent role in the national economy of the countries and a number of factors such as safety condition of the port and low rate or non-occurrence of accidents are greatly important for being selected as a destination for cargo owners to bring their vessels and cargo therein, giving due care to safety related issues in ports and harbors is among jurisdictional and sensitive duties of the authorities in ports and maritime areas. Enjoying some 3000 km of marine coastlines and more than 10 commercial ports throughout the country, Iran is no exception where its ports are responsible for cargo import and export. In this respect, container terminals are one of the high-risk areas in ports requiring extensive care of the pertaining authorities to take appropriate measures to maintain safety standard there. One of the significant methods and techniques for the risk assessment is P&HRAM as to the containers terminals. This method has been employed in this research taking into account the operation attributes of the works in ports and harbors. This method provided appropriate answers to the research questions in that it was predicted that the great part of the activities in container terminal poses a higher risk from human perspective than expected requiring some measures to be taken to mitigate the risks to a tolerable level. This research was conducted and the results demonstrated that more than 75% of the risks in container terminals are higher than acceptable level about which some measures were taken and the risks were reduced to 100% lower than tolerable level.

Monitoring and Measuring Event Decision-Making Process Using Key Performance Indicators： Evidence From Italian Cruise Terminals

This paper investigates the control systems and coordination mechanisms applied in the relationships between cruise line companies and terminal concessionaires in the cruise events management when the ships are stopping on the quay. Using a case study methodology and focusing on the Italian context, this exploratory study, through a qualitative approach, interviewed two main cruise terminal concessionaires and indirectly observed events planned by cruise companies in sea ports selected for outlining the role of control systems, coordination, and knowledge sharing between the players in cruise events decision-making processes. The first results show that the cruise event management processes on ship berthing and on terminal are separated. The cruise companies don＇t involve terminal concessionaires in the event organization considering them only service suppliers Also, the concessionaires conceive the events planned in the cruise infrastructures as a business unit to optimize the space use, without any forms of coordination or control with cruise companies. Knowledge sharing, coordination, and control among the two players could support the planning, and management of ＂new cruise events＂ in which the visitors may be led from the infrastructure to the ships stopped on the quay. This study offers a set of key performance indicators to support the management, control, and coordination of each inter-organizational relationship identified. Managerial implications and suggestions for improving cruise events management have been provided.

Mobile Terminal Management in 3G

Recently, Terminal has become one of the key issues in the 3G development. In the paper, we study the mobile terminal management in 3G network. Based on the analysis of problems encountered with the terminals, the paper describes the use cases of terminal management. A system architecture with its function components of mobile terminal management system is proposed. Moreover, a possible implementation solution is introduced and described. A Management Information Model （MIM） for terminal management is also proposed to support the management services.

考虑候机区拥挤的机场廊桥再分配优化研究

为缓解高峰时段机场候机厅内局地过度拥挤现象,对既有廊桥分配方案进行再优化,构建数学优化模型,以最小化各登机口候机区域客流密度最大值为目标,综合考虑停机位预分配方案、前后航班及相邻登机口航班时刻、候机厅面积等约束,在不影响廊桥利用率的前提下,优化候机区客流时空分布,避免因局地过度拥挤而诱增潜在的管理风险。鉴于模型的计算复杂性,运用遗传算法进行优化求解。实例计算结果显示:算法收敛性能良好;优化后候机区内局地的客流密度峰值下降近50%,候机厅资源利用均衡性明显改善,对应均方差指标降幅超过51%,表明所提方法实现了预期效果,可提升机场运行管理水平和服务质量。

基于北斗/GPS双模的船舶通信航标遥测遥控系统

为解决船舶在复杂海况下信号不稳定问题,提升信息传输的安全性和抗干扰能力,获取准确、可靠的船舶位置信息,设计基于北斗/GPS双模的船舶通信航标遥测遥控系统。船舶通信航标终端利用北斗/GPS双模定位模块,解决船舶在复杂海况下信号不稳定问题,提升信息传输的安全性和抗干扰能力,获取准确、可靠的航标位置信息;利用温湿度传感器,采集航标附近环境信息,并通过北斗通信卡传输信息到终端管理中心;终端管理中心根据接收的信息,实时更新显示航标相关信息,并向船舶通信航标终端发送控制指令,确保船舶的航行安全和效率。实验证明,该系统可有效采集航标附近的环境信息,精准定位船舶位置;该系统可实现船舶通信航标的遥测遥控,确保船舶安全航行。

物联网终端管理系统在水利工程中的应用

阐述物联网终端管理系统是一款面向水利行业针对主机安全加固的防护软件产品。它能够快速采集应用软件运行过程的中间文件,并对数据进行实时优化和记录,实现信息安全的多重防护。

集装箱码头操作管理教学系统设计与实现

集装箱码头操作管理系统在港口作业中起着至关重要的作用,涉及业务种类繁多,技术实现复杂且操作与维护工作量大。为在院校中培养企业所需的集装箱码头操作管理系统人才,设计并实现了集装箱码头操作管理教学系统。该系统可以解决大专院校毕业生在实际系统应用、管理与维护等方面培训时间长的问题,对码头信息化人才的培养具有重要的作用和意义。

政务移动办公系统安全技术规范在政务领域的应用实践

为适应移动政务新场景、新要求,将GB/T 35282—2023《信息安全技术电子政务移动办公系统安全技术规范》标准技术要求,在某省级百万级“政务通”移动办公平台中进行应用,在平台系统设计建设中参照标准设计系统整体安全框架,落实标准中移动终端、通信、接入和服务端安全方面安全要求,推动网络安全法规、等级保护2.0等要求在移动政务领域的落地,强化了移动政务终端、应用、数据、个人信息的系统化安全保护,发挥国家标准的引领和规范作用,进一步提升政务服务效能和安全保障水平。

基于边端协作的分布式数据分级管理技术

随着智能应用在嵌入式装备系统中的不断普及与发展,对大数据的有效利用和深度融合提出了更高的要求。然而,嵌入式装备类型多样、大数据多源异构,由于缺乏统一的组织管理,业务应用间存在数据壁垒,并出现了数据孤岛现象,导致大数据利用与开发困难。因此,在嵌入式装备系统中,如何有效组织管理数据是亟待解决的难点。为此,以嵌入式装备系统的数据统一管理和共享利用为导向,基于边侧与端侧协作技术,从数据管理架构、数据分级协同管理方案、数据请求调度策略三个方面,探讨了嵌入式装备系统中分布式数据协作管理技术的可行性,以促进数据到信息、信息到知识、知识到决策的快速转化,同时,通过管与用的紧密结合,推动嵌入式装备系统中数据应用的开发。

发包方终止土地经营权流转合同探究

《农村土地承包法》第64条赋予了发包方终止土地经营权流转合同的权利,目的在于切实保护集体土地所有权,避免集体土地遭受损害。发包方终止土地经营权流转合同的权利属于形成权,但不是合同解除权,不仅适用于土地经营权流转合同,也适用于土地经营权再流转合同以及融资担保实现后流转的土地经营权,不适用于其他方式承包的承包合同。在土地经营权人擅自改变土地的农业用途、弃耕抛荒连续两年以上、给土地造成严重损害或者严重破坏土地生态环境的情形下,若承包方不行使合同解除权,则发包方有权终止土地经营权流转合同。发包方行使终止土地经营权流转合同的权利可以采取通知终止与诉讼终止两种方式行使。在合同终止后,土地经营权人应当向承包方返还承包地,地上物应当按照充分发挥物的效用原则处理,承包地的权利负担随之消灭,同时应当办理注销登记。

基于移动端与PC的数字化设备管理方案

数字化是现代智能制造的重要标签,也是生产效率和管理标准化提升的有效手段。文章对数字化设备管理现状进行了研究,阐述了一种数字化设备管理系统的开发方案,可以通过手持移动终端与PC电脑对该系统进行实时操作,实现设备全流程系统化管理,支撑设备资产管理、点检、维保、备件、应用数据分析等多项业务。该方案可以有效降低设备管理难度,助力设备管理提效,同时给企业带来较大经济收益。

基于AHP-模糊综合评价的无人机配送风险管理

为贯彻落实碳达峰、碳中和政策,物流行业逐步走向更加智能化、低碳化的道路,末端配送作为物流重要环节之一势必与无人机等人工智能技术融合发展,因此尽早了解无人机配送存在的风险并提出相应解决方案,对未来无人机配送的发展意义重大。首先基于无人机配送发展现状和存在问题进行分析并识别相应风险,建立评价指标体系进行风险因素分析,利用层次分析和模糊综合评价法确定指标权重并进行评价。研究结果表明,无人机配送的关键风险为技术水平风险。此外,为更好应对无人机配送存在的风险挑战,针对其他风险因素提出相应建议,从而降低无人机配送面临的风险,推动未来无人机末端配送的普及发展。

基于自编码多层感知器的电力负荷管理终端运行故障诊断方法

针对现有电力负荷管理终端运行故障辨识率低问题,提出一种基于自编码多层感知器的电力负荷管理终端运行故障诊断方法。首先,分析负荷管理终端运行状态指标与故障;其次,阐述自编码多层感知器电力负荷管理终端运行的故障诊断模型及其实现方法,通过终端运行技术指标时序数据的等间隔式滑动窗口,操作获取表征终端运行状态特征候选集合,采用自编码器AE特征选择子模型,提取最优特征子集,借助多层感知器MLP故障诊断辨识子模型,实现终端运行故障分类诊断;最后,通过实验验证所提方法有效性。结果表明所提方法能提升电力负荷管理终端运行故障辨识精确率、召回率和辨识效率,实现电力负荷管理终端运行故障的精细化诊断。

基于人工智能的即插即用型配电站房物联边缘终端研制

配电网核心节点的配电站房位于供用电用户边界,近年来,随着光伏、储能、电动车等分布式资源的快速发展,配电站房数量增速提升,新的安全风险点不断出现,导致配电站房运维人员、设备、环境等安全问题多发,安全生产形势严峻,运维管理面临着极大的压力。针对上述问题,设计了基于人工智能的即插即用型软硬件平台,研制了配电站房物联边缘终端,实现配电站房状态全面感知,模型统一管理,数据高效共享,应用灵活部署。通过设备故障预警、视频图像分析和规则引擎等边缘计算功能,实现配电站房全景监控,提升精益化运维和智能化管控水平。

两种肾输尿管切除术中输尿管末端处理方式对比分析

目的通过回顾性研究评估经过后腹腔镜根治性肾输尿管切除术治疗的肾盂癌及上段输尿管癌患者,比较术中两种不同输尿管末端处理方式(下腹部小切口与经尿道电切)的临床疗效、安全性及预后。方法选取2012年1月至2022年12月期间于新疆医科大学第一附属医院术后病理诊断为肾盂癌或上段输尿管癌并行肾输尿管切除术治疗的108例患者资料,根据术中输尿管末端处理方式的不同,将患者分为下腹部小切口组(开放组n=58)与经尿道电切组(电切组n=50),其中开放组患者行后腹腔镜肾输尿管切除联合下腹部小切口输尿管末端切除术,电切组患者行后腹腔镜肾输尿管切除联合经尿道电切输尿管末端切除术。比较两组手术出血量、术后住院持续时间、复发情况、并发症状况。结果开放组手术时间(171±54)min,尿道组手术时间(141±37)min、两组手术持续时间差异有统计学意义(P<0.05)。术中出血量、术后的住院持续时间、复发率、术后并发症发生率差异均无统计学意义(P>0.05)。结论无论是治疗肾盂癌还是上段输尿管癌,使用两种输尿管末端治疗技术都是安全有效的,经尿道电切术手术时间更短,两种方式均可选择。

基于继电保护的配网管理终端自动调试校准系统

由于系统存在误差大等问题,设计一种基于继电保护的配网管理终端自动调试校准系统。主要对系统的整体硬件结构进行优化,并重新设计继电保护装置结构以及信息传输流程,针对交直流电压的变换信息,确定继电保护装置内部电路。对校准系统工作中存在的粗大误差利用拉依达准则进行识别并剔除,列举部分情况下的拉依达准则判别系数,设计系统智能通信模块,完善继电保护输出流程。实验结果表明,利用所提方法的各个检测项目输出电压的误差均在允许范围之内,其自动调试校准系统更具有效性。

基于智能多终端质量控制系统的聚焦功能在临床护理质量管理中的应用

目的:探讨基于智能多终端质量控制系统的聚焦功能在临床护理质量管理中的应用效果。方法:选择2020年7—12月南京医科大学第一附属医院统计系统运行前的170个护理单元的护士长及415名护士设为运行前组,选择2021年7—12月基于智能多终端质量控制系统的聚焦功能运行后的170个护理单元的护士长及415名护士设为运行后组,比较两组的临床护理问题发现率、护理质量管理效率、护士知晓三级护理质控检查结果的时间、护理人员对质控方式满意度。结果:运行后组的问题发现率和巡查执行率结果均高于运行前组,差异有统计学意义(P<0.05)。运行后组计划制定耗时、信息录入耗时、统计分析各环节耗时均短于运行前组,差异有统计学意义(P<0.05)。运行后组护士知晓范围大于运行前,知晓时间短于运行前组,差异有统计学意义(P<0.05);运行后组护士对质控的满意度高于运行前组,差异有统计学意义(P<0.05)。结论:基于智能多终端质量控制系统的聚焦功能让护理质量管理环节质控和过程质控简单化,节约了护理管理时间,有效提高了质量管理效率,提升了护理风险管理,促进了科学决策、智能管理,并提高了护士对质控的满意度。