Joint decision-making of virtual module formation and scheduling considering queuing time

Formation and scheduling are the most important decisions in the virtual modular manufacturing system;however,the global performance optimization of the system may be sacrificed via the superposition of two independent decision-making results.The joint decision of formation and scheduling is very important for system design.Complex and discrete manufacturing enterprises such as shipbuilding and aerospace often comprise multiple tasks,processes,and parallel machines,resulting in complex routes.The queuing time of parts in front of machines may account for 90%of the production cycle time.This study established a weighted allocation model of a formation-scheduling joint decision problem considering queuing time in system.To solve this nondeterministic polynomial(NP)problem,an adaptive differential evolution-simulated annealing(ADE-SA)algorithm is proposed.Compared with the standard differential evolution(DE)algorithm,the adaptive mutation factor overcomes the disadvantage that the scale of DE’s differential vector is difficult to control.The selection strategy of the SA algorithm compensates for the deficiency that DE’s greedy strategy may fall into a local optimal solution.The comparison results of four algorithms of a series of random examples demonstrate that the overall performance of ADE-SA is superior to the genetic algorithm,and average iteration,maximum completion time,and move time are 24%,11%,and 7%lower than the average of other three algorithms,respectively.The method can generate the joint decision-making scheme with better overall performance,and effectively identify production bottlenecks through quantitative analysis of queuing time.

Understanding the Impact of Economic Crisis on the Distribution of Organizational Decision-Making Authority

Understanding the dynamics of decision making in the right way is an important problem for the management of organizations.In today’s business life organizations are becoming more complex,and the environments they are operating in,are becoming increasingly uncertain.The aim of this paper is to contribute to the understanding of the dynamics of managerial decision-making process in complex internal and external environments by sharing the results of an empirical study(Onuk,2009).While taking the levels of the organizational structure as one of the important dimensions of complex internal environment,complex external environment is reflected within the study as economic crisis.Using the survey tool developed by Onuk(2009),the empirical study realized in the Turkish organization of a large global company investigated decision-making process to understand how decision-making authority for different types of decisions,identified as strategic,tactical,and operational level decisions,was distributed throughout the organization levels,and how this distribution was impacted by economic crisis.The results of the study confirmed the following common expectations:(1)Strategic decisions are mostly taken at upper hierarchical levels of the organizational structure;(2)during times of economic crisis strategic decision making is centralized;and(3)during times of economic crisis distribution of decision-making authority is concentrated at upper management levels.

TIME CRISIS-3加入大量电影要素

两人同时进行的枪Game,相信要数也数不清。不过可以两人同时在不同地区里进行的枪Game,相信除了Namco的《TIMECRISIS》系列外就没有别家。经过5年后,Namco终于再次在街机平台上推出她的最新一集——《TIME CRISIS3》。在今次除了保留避子弹、两人同时进行外,更加入了不少全新系统!要是读者们是它的Fans的话,那么千万不要错过以下介绍。

RF-CLASS： A remote-sensing-based flood crop loss assessment cyber-service system for supporting crop statistics and insurance decision-making

Floods often cause significant crop loss in the United States. Timely and objective information on flood-related crop loss, such as flooded acreage and degree of crop damage, is very important for crop monitoring and risk management in ag- ricultural and disaster-related decision-making at many concerned agencies. Currently concerned agencies mostly rely on field surveys to obtain crop loss information and compensate farmers＇ loss claim. Such methods are expensive, labor intensive, and time consumptive, especially for a large flood that affects a large geographic area. The results from such methods suffer from inaccuracy, subjectiveness, untimeliness, and lack of reproducibility. Recent studies have demonstrated that Earth observation （EO） data could be used in post-flood crop loss assessment for a large geographic area objectively, timely, accurately, and cost effectively. However, there is no operational decision support system, which employs such EO-based data and algorithms for operational flood-related crop decision-making. This paper describes the development of an EO-based flood crop loss assessment cyber-service system, RF-CLASS, for supporting flood-related crop statistics and insurance decision-making. Based on the service-orientated architecture, RF-CLASS has been implemented with open interoperability specifications to facilitate the interoperability with EO data systems, particularly the National Aeronautics and Space Administration （NASA） Earth Observing System Data and Information System （EOSDIS）, for automatically fetching the input data from the data systems. Validated EO algorithms have been implemented as web services in the system to operationally produce a set of flood-related products from EO data, such as flood frequency, flooded acreage, and degree of crop damage, for supporting decision-making in flood statistics and flood crop insurance policy. The system leverages recent advances in the remote sensing-based flood monitoring and assessment, the near-real-time availability of EO data, the service-oriented architecture, geospatial interoperability standards, and the standard-based geospatial web service technology. The prototypical system has automatically generated the flood crop loss products and demonstrated the feasibility of using such products to improve the agricultural decision-making. Evaluation of system by the end-user agencies indicates that significant improvement on flood-related crop decision-making has been achieved with the system.

A Concept Analysis of Decision-Making by Families in Critical Life Situations

Background: In 2017, the elderly made up 27.3% of Japan’s population, accounting for 57.2% of all ambulance trips. When an elderly person is in a critical life situation, it is difficult to ascertain their decisions about treatment choices, and for family members who become surrogate decision-makers, this is a grave responsibility. Aim: This study aimed to shed light on the constructs that support decision-making by family members and medical staff in critical situations, and to investigate decision-making by families of the elderly in critical situations. Method: We selected 29 papers published in Japan and elsewhere that focused on families involved in treatment decisions in critical life situations and analyzed them using Rodgers’ concept analysis approach. Results: From 475 codes, we extracted six attributes, four antecedents, and four consequences. The unusual setting of the “critical care unit”, lack of time, and unstable psychological state are all considered by family members making treatment decisions, along with the patient’s prognosis, their relationship with the patient, conjecture about the patient’s wishes, and taking other family member’s views into account. Medical staff supports the family throughout the process, through provision of treatment, preparing family members to face reality, empathizing with the difficulty of decision-making, building relationships with family members, monitoring the decision-making process, and being attentive to family members’ feelings until the end. Conclusion: Our results indicate the importance of advance confirmation of patients’ wishes, and the role played by cultural context and family relations in decision-making by family members of the elderly.

Characteristics of Decision-Making by Family Members When Older Adults Are Hospitalized in Emergency Cases with Life-Threatening Conditions

Aim: This study aims to elucidate decision-making characteristics based on interviews with family members with experience in having to select treatments for older adult patients who have been hospitalized following emergency transport to the hospital. Design: Semi-structured interviews were conducted with 10 individuals with experience in surrogate decision-making for an older adult family member. Methods: The recorded interview data were transcribed verbatim, divided into minimum semantic units, and coded. Next, categories and subcategories were abstracted. A comparison was made with the conceptual constructs of a previous study that examined decision-making by families in a life-threatening crisis. Results: Four categories were extracted from 489 antecedents, 370 attributes, and 388 consequences. One new category was abstracted for each of: 1) antecedents: observing abnormalities and responding, while being worried about death;2) attributes: deliberating on the patient prognosis, the relationship with the patient, and what they believe the patient would want;and 3) consequences: continuing support during convalescence. It is desirable to provide support based on the characteristics of families of older adults, including considering the psychological burden on the families who make surrogate decisions, and also the burden of subsequent caregiving because it is not and in the present environment has not been common for patients to express their wishes beforehand.

How Should Generation Enterprises Deal with Crisis?

Since October 2008,China's social consumption of electricity had,for the first time,grown negatively compared to the same period of the previous year,and in November the negative growth range further expanded. The major pressure faced by the electricity industry has now turned from the contradiction between coal and electricity to electricity quantity. This is undoubtedly a true and new test to electricity enterprises which get used to high growth but are now suffering great losses. The reform of electricity system has already been in great difficulties and now is getting into a more serious situation. In order to help readers improve their knowledge and understanding of the current tough situation faced by the electricity industry and discuss how to alleviate and get through the difficulty resulted from the economic crisis "encountered once every one hundred years" by joint efforts of all parties concerned,a Seminar on Crisis and Countermeasures for Electricity Industry was held on November 20,2008. Here are some extracts from the speeches of four experts.

现代社会时间危机的阐释方案与纾解策略——罗萨与韩炳哲对加速的共识与分歧

社会加速与主体时间匮乏是困扰当代人的一个重大难题。置身于数字时代的罗萨与韩炳哲不仅深刻洞察到了当代社会的加速本质,还准确地捕捉到了社会的加速力量非但没有汇流成一股解放的合力,反而成为当代人受奴役的牵绊。罗萨直接指认了当代人受困肇源于社会加速,人们就此陷入忙乱的困局之中。韩炳哲则不同,他始终认为社会加速只不过是现代社会的表现而已,当代人的时间匮乏和时间失调源于时间原子化所导致叙事张力的消弭。罗萨和韩炳哲的致思理路启发着我们深刻理解“加速”与时间危机的内在关联。作为现代社会发展主要特征的“加速”并不必然导致主体时间匮乏,但是主体时间匮乏却与社会加速有着千丝万缕的联系。究其根源,社会加速和主体时间的匮乏都是资本逻辑运作之下的必然现象,社会加速迎合了资本增殖和积累的欲求,主体时间匮乏与危机也是资本的倾轧使然。其实,“共鸣”的世界关系或“凝思”的生活方式均无力纾解主体时间匮乏的危机。唯有回到马克思的政治经济学批判中,对资本及其逻辑展开实质性批判方能找到摆脱困局的良方,自由时间的复归和人的全面发展才得以可能。

危机理论指导下的创伤急救护理对颅脑外伤患者急救时间、神经功能及生命体征的影响

目的:探讨危机理论指导下的创伤急救护理对颅脑外伤患者急救时间、神经功能和生命体征的影响。方法:选择2020年9月—2023年9月在连云港市中医院接受颅脑外伤急救治疗的102例患者作为研究对象,根据随机数表法将患者分为对照组和观察组,各51例。对照组接受常规急救护理,观察组在对照组基础上接受危机理论指导下的创伤急救护理。比较两组急救时间(有效抢救时间、确诊时间和急诊至手术时间)、神经功能[美国国立卫生研究院脑卒中量表(National Institutes of Health stroke scale,NIHSS)评分和格拉斯哥昏迷指数(Glasgow coma scale,GCS)]、生命体征(呼吸频率、心率、收缩压和舒张压)及并发症(缺血性痉挛、电解质紊乱和肢体功能障碍)发生情况。结果:观察组有效抢救时间、确诊时间、急诊至手术时间短于对照组,差异有统计学意义(P<0.05);观察组护理后NIHSS评分低于对照组,GCS评分高于对照组,差异有统计学意义(P<0.05);观察组护理后呼吸频率、心率、收缩压、舒张压低于对照组,差异有统计学意义(P<0.05);观察组并发症发生率低于对照组,差异有统计学意义(P<0.05)。结论:危机理论指导下的创伤急救护理可有效缩短颅脑外伤患者急救时间,改善神经功能和生命体征,降低并发症发生率。

数字时代原子化教育时间的危机与消解

数字技术在教育领域的深度融合,导致教育时间发生了结构性改变,造成了教育时间范式从单向线性教育时间向原子化教育时间的转移,从而使数字化时代的教育呈现出“即时”的原子化特征。原子化的教育时间在为学生带来学习便利的同时,却因其不是统一过去、现在和将来的完整性的本真时间而无法为学生生命的整全持存提供支撑,从而给学生的生命存在造成了诸多生存隐忧:在缺乏时间性的教育时间中,学生成了过度学习的绩效主体,面临着认知经验贫乏的危险,逐渐丧失承担责任和关怀他者的能力。为了超越教育时间的存在论危机,教育者必须从学生生命原点出发,基于教育活动的时间性,尊重学生生命的时间节奏唤醒学生对生命体验的沉思,恢复学生倾听他者的责任,从而使其更加充分地实现生命的整全。

科幻小说下的美国现实——论《漂流在时间里的人》中的身份危机和出路探寻

《漂流在时间里的人》是欧茨创作晚期的一部科幻作品,小说描写了两位陷入主体危机的主人公的命运悲剧。欧茨善于从个体悲剧命运出发展现作者本人的社会关切,文章以身份构建为线索,剖析角色悲剧命运的深层原因,探究欧茨的创作观和其浓厚的现实主义风格。小说与作者成长经历高度重合的背景设置也体现了欧茨强烈的社会道德责任感和传统文化意识。

The Time and Cost Prediction of Tunnel Boring Machine in Tunnelling

Making use of microsoft visual studio. net platform, the assistant decision-making system of tunnel boring machine in tunnelling has been built to predict the time and cost. Computation methods of the performance parameters have been discussed. New time and cost prediction models have been depicted. The multivariate linear regression has been used to make the parameters more precise, which are the key factor to affect the prediction near to the reality.

Leveraging Confucian and Daoist Wisdom for Biodiversity Education: A Pathway to Sustainable Decision Making

The vitality of biodiversity,an essential pillar of a thriving biosphere,is currently at risk.This paper investigates the potential of ancient philosophies,specifically Confucianism and Daoism,as pathways to mitigate this issue.We delve into the intricate connections between these philosophies and the natural world,and how they can inform our understanding of biodiversity threats in the context of cultural and technological evolution.Recognizing the inevitable progression of technology and its influence on human evolution and the biosphere,we turn to traditional philosophies to establish guiding principles for sustainable decision-making.We advocate for the principle:"Decisions must not result in the artificial reduction of biodiversity within the framework of evolutionary time."This principle is substantiated by reciprocal arguments that lay the foundation for the essential analyses to protect biodiversity.By adhering to this principle,we can ensure a sustainable biosphere conducive to ongoing human evolution.This study underscores the importance of integrating ancient wisdom with modern decision-making processes to address the pressing issue of biodiversity loss.

极端事件下国际股市间风险溢出效应研究

近年来,极端事件的频发提高了股市风险的流转速率,全球股票市场动荡不安并表现出强烈的共振效应。在此背景下,研究极端事件下国际股票市场间的溢出效应,挖掘股市风险的传播特点,有助于监管部门制定针对性风险防控政策,提高风险管理效率。基于TVP-VAR模型的溢出指数法及风险溢出网络模型,重点对中美贸易摩擦时期和乌克兰危机时期的股市风险传播特点进行实证分析。分析结果表明,股市风险溢出效应存在区域“抱团”现象,同属区域股票市场间的风险溢出强度较大;除俄罗斯外,其他欧美地区股市是风险净溢出者,俄罗斯、澳大利亚及亚洲地区股市为风险净接收者;相较于乌克兰危机,中美贸易摩擦对股市风险溢出效应的影响更大,总体溢出指数呈现显著的跳跃式上升趋势。同时,中美贸易摩擦时期风险溢出网络的平均聚类系数大于乌克兰危机时期和平稳时期,网络连接更紧密,风险流转速率更高;中国股市在中美贸易摩擦时期的风险溢入净值大于乌克兰危机时期,遭受其他股市的风险冲击更大。

基于改进随机森林算法的财务风险预警模型构建研究

财务危机是影响企业发展的重要因素,也是企业在发展中不可避免的危险因素,因此对企业财务危机进行有效预警具有重要意义。为了实现企业财务风险预测和预警,研究提出了基于K折交叉验证的随机森林算法,同时结合时间序列分析来实现更为全面的预警。结果中显示,K折交叉验证随机森林算法的指标分类精度达到了0.907,并且研究构建的财务风险预警模型在ROC曲线的性能分析中表现出较高的线下面积,即具有较高的预测性能。以上结果表明,采用K折交叉验证改进随机森林算法能够较大程度上提升预警模型的财务指标分类效果,提升预警模型的综合预警能力,为我国企业发展提供财务风险规避策略。

中美股市联动的时变效应研究——基于突发公共危机视角

新型冠状病毒感染疫情的暴发重创全球实体经济,世界各地金融市场也出现异常剧烈波动。在全球化和人民币国际化的背景下,A股与全球股市的联系日益紧密。新冠疫情的暴发呈现区域不对称性与时间不同步性,文章采用DCC-MGARCH和TVP-SV-VAR两个时变系数模型,分析2020年1月-2022年4月的中美股市联动效应。研究发现,中美股市联动存在显著时变特征,且在疫情初期双向风险溢出较强;中国暴发疫情时期,中美股市出现反向挂钩,而在美国暴发疫情时期,中美股市正向响应;港股和离岸人民币市场有助于防范国际金融市场风险输入。在后危机时代,突发公共危机依然有暴发的可能性。因而,我国在持续推进资本市场开放中,需始终秉持宏观审慎的原则,防范外部风险输入。

论数字化时代人的时间危机——基于韩炳哲“凝思”理论的研究视域

伴随着人工智能、物联网、大数据等新兴科学技术的飞速发展,人类进入到了数字化时代。这一时代,人的生存状态,尤其是日常生活领域出现了一系列新的危机,其中最为显著的当属时间危机。韩炳哲从“凝思”视角阐析了当下时间危机的普遍表征以及解决之策,深刻剖析数字化时代人的时间危机,不仅有助于深刻揭批当下个体在时间向度中茫然无措窘状,而且对于重塑当下公众的时间管理具有重要现实启示。

高血糖危象患者静脉输注胰岛素向皮下注射速效胰岛素类似物的转换时机研究

目的 分析高血糖危象患者静脉输注胰岛素向皮下注射速效胰岛素类似物的转换时机。方法 回顾性分析68例高血糖危象患者的临床资料,均予以胰岛素持续静脉泵入,依据速效胰岛素类似物皮下注射不同转换时机分为对照组(30例)和观察组(38例)。对照组在停止静脉输注胰岛素前的1 h予以胰岛素类似物皮下注射,观察组在停止静脉输注胰岛素同时开展速效胰岛素类似物皮下注射。比较两组患者停泵前1 h、停泵前0.5 h、停泵时、停泵后0.5 h、停泵后1 h、停泵后2 h的血糖水平以及血糖波动值,同时记录两组患者低血糖发生情况。结果 观察组患者停泵前1 h、停泵前0.5 h、停泵时、停泵后0.5 h、停泵后1 h、停泵后2 h血糖水平分别为(15.20±2.54)、(15.64±2.62)、(15.70±2.52)、(16.78±2.62)、(16.92±2.50)、(15.54±2.58)mmol/L,与对照组的(15.38±2.46)、(15.59±2.50)、(15.95±2.56)、(16.12±2.48)、(16.56±2.54)、(15.52±2.60)mmol/L比较,差异均无统计学意义(P>0.05)。观察组患者停泵前0.5 h、停泵时、停泵后0.5 h、停泵后1 h、停泵后2 h血糖波动值分别为(0.32±0.10)、(0.38±0.11)、(0.52±0.09)、(0.82±0.12)、(0.11±0.02)mmol/L,与对照组的(0.31±0.10)、(0.40±0.12)、(0.48±0.14)、(0.78±0.15)、(0.10±0.03)mmol/L比较,差异均无统计学意义(P>0.05)。两组于停泵24 h内均未观察到低血糖发生。结论 高血糖危象患者胰岛素静脉输注停止的同时开展速效胰岛素类似物皮下注射能达到胰岛素静脉输注向皮下注射的连续转换,同时将胰岛素水平维持在相对恒定状态,值得采用。

区间事件分析法--次贷危机对中资银行的影响研究

本文采用区间事件分析法研究了次贷危机对中资银行的影响。本文提出了全新的区间事件分析理论框架,将原有的区间时间序列分析理论与事件分析法相结合,提出了"数量化"表示事件影响的"区间系数",并给出了经济解释。实证研究以中国银行和工商银行A股和H股的动态"区间收益率"数据为研究对象,采用新的"区间"视角分析次贷危机包含的一系列事件对中资银行产生的影响。实证结果表明:(1)中国银行H股受到次贷危机引发的国际事件影响较A股更大;工商银行H股和A股对次贷危机的反应比较一致。(2)两家银行的H股对次贷危机的反应均开始于新世纪集团事件,均早于A股对次贷危机的反应。(3)贝尔斯登、标准普尔第二次降低次贷资产评级和雷曼兄弟等事件引发了次贷危机的三个高潮。

浅析高校突发事件中大学生心理危机干预

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