巧解直线与圆锥曲线

直线与圆锥曲线联系在一起的综合题在高考中多以高档题、压轴题出现,主要涉及位置关系的判定,弦长问题、最值问题、对称问题、轨迹问题等.突出考查了数形结合、分类讨论、函数与方程、等价转化等数学思想方法,要求考生分析问题和解决问题的能力、计算能力较高,在基础题型讨论有关相交弦的问题.     

水暖工程施工中的常见问题及解决措施

水暖工程包括系统比较多,施工工艺也比较复杂,在施工中容易一些问题,如图纸问题、材料问题、进度问题等,解决这些问题,首先要在施工前做好准备,编制好计划,其次要在施工过程动态地监督每一道工序,做好每天的资料记录,以便及时发现问题,付诸整改.     

质量问题处理方法比较研究

企业对质量的态度,最直接的表现就是对质量问题的态度,而对质量问题的态度就直接体现在质量问题的处理方法上。本文主要对8D、EPS、TBP和质量问题归零方法四种质量问题处理方法进行比较分析,从解决方法、问题定义、问题解决的基本原则、问题处理步骤、工具方法的运用等方面进行了详细分析,从而为企业在质量问题处理过程中应秉持的态度、原则、目标和要求提供理论依据。     

金砖四国发展中存在的问题分析

金砖四国在经济方面不断崛起的同时,在政治、社会等方面也产生了很多问题,这些发展中的问题如不能很好地得到破解,就会成为金砖四国发展中的阻碍。本文就经济、社会和政府三个方面对金砖四国存在的问题展开分析、研究。经济方面的问题主要包括产业结构和金融发展等问题;社会方面的问题主要包括贫富差距、城市化中的贫民窟和农民工问题、诚信体系建设缺失等问题;政府方面的问题主要集中在政府权力的过度集中、政府过度干预经济发展等问题。     

浅析教育与就业问题的解决

在当今时代,就业不仅仅是一个经济问题,也是一个不容忽视的政治问题和社会问题,它关系着亿万劳动群众的切身利益。所以,人们必须正确认识,正确对待就业问题,并寻找解决就业问题的解决途径。本文从教育对就业问题的影响入手,从结构性就业问题、一般性就业问题、个人选择性就业问题三方面分析了教育在就业问题解决上的关键作用。     

加强问题管理 把握重大机会

问题即事物的矛盾。世界充满了矛盾,因而也就充满了问题;企业经营管理充满了矛盾,因而也就充满了问题;工作中充满了矛盾,因而也就充满了问题。在唯物辩证法看来,矛盾或问题作为一种客观存在,躲不开、绕不过、盖不住,对待矛盾或问题的正确态度,是树立问题意识,以问题为导向,承认问题、直面问题、分析问题、解决问题,从而促进企业的发展和个人的进步。加强问题管理促进组织改善对企业经营管理者来说,问题就     

用EXCEL解决一类配送路线的制定和优化问题

EXCEL在管理科学领域的应用很多,如线性规划、运输问题、指派问题、网络最优化问题、项目管理、库存管理、预测、排队论和计算机仿真,等等。运用EXCEL建立模型,求解模型,能对管理者的决策提供很好支持。配送路线的制定和优化问题在实际物流操作中有着广泛的应用,也是非常困难的问题,借助EXCEL工具来辅助制定和优化配送路线,主要是对起点和终点相同的一类路径规划问题做出分析。     

北洺河铁矿人力资源管理经验浅谈

<正>薪酬问题是公司和员工们评论最多的问题,也是最为关注、最为敏感的问题;它在员工队伍的稳定性,工作积极性、主动性、创造性、责任性中发挥着举足轻重的作用;更是影响矿业快速健康发展的瓶颈问题。因此,公司从人力资源管理最核心的薪酬问题入手,进行薪酬制度改革,我矿在公司宏观制度的     

科研项目财务报账制初级探讨

为加强经费管理,提高经费使用效率,部分科研项目实行财务报账制。在财务报账和项目管理中,有些问题需要解决,如报账业务真实性问题、支付问题;有些问题需要改进,如报账项目管理问题、绩效考核及激励问题。在报账过程中,要完善报账手续,采取正确支付结算方式,还要妥善解决垫付资金问题。在项目管理中,报账单位应将报账项目纳入管理范围,与核算单位相互配合,做好项目管理工作和绩效考核工作。     

锅炉焊接缺陷的成因及对策

锅炉焊接缺陷问题较多,本文主要论述锅炉焊接问题中的未焊透、未熔合、气孔、裂纹四个问题.在分析其问题的成因上,探讨了问题的预防对策,为保障锅炉安全运行提供参考.     

产品品种规格类标准的研制方法

本文分析了品种规格标准的属性、地位、建立、作用等特点,论述了品种规格标准的内容结构及其要素,划分了五种品种规格类标准的类型,分别阐述了每种标准的主要内容、表述方式和作用等,研究了品种规格的分类和命名关系,讨论了标准中优选原则的建立,论述了品种规格优选的方法,提供了标准中管理的典型内容,给出了标准应用指导的设计方法。     

火灾预防工作中的辩证思维

运用唯物辩证法,对火灾预防工作从正确认识“隐蔽性与显现性,必然性与可控性,突发性与渐发性,人为性与自然性,重复性与随意性,时效性与经常性,普遍性与特殊性,主体性与客体性,直接性与间接性,季节性与反季节性“之间的关系,进行了辨证思考与分析,并对正确处理好这些关系提出了相应对策.     

TEN THINGS WE SHOULD KNOW ABOUT TIME SERIES

Abstract Time series data affect many aspects of our lives. This paper highlights 10 things we should all know about time series, namely, a good working knowledge of econometrics and statistics, an awareness of measurement errors, testing for zero frequency, seasonal and periodic unit roots, analysing fractionally integrated and long memory processes, estimating VARFIMA models, using and interpreting cointegrating models carefully, choosing sensibly among univariate conditional, stochastic and realized volatility models, not confusing thresholds, asymmetry and leverage, not underestimating the complexity of multivariate volatility models, and thinking carefully about forecasting models and expertise.     

浅析浅海区域油轮如何安全靠泊导管架、自升式平台

浅海区域油轮要安全靠泊导管架、自升式平台,首先要了解浅海水域、导管架、平台特点。其次要掌握导管架平台、油轮作业方式。第三油轮方面要做好充分准备,公司方面要加大监管、指导力度,加强船员培训。     

施工总承包企业特级资质标准是与非

《施工总承包企业特级资质标准》即将实施,该标准突出了企业资质能力、人员素质和科技进步等方面的要求,对国内建筑企业发展起到引领战略转型和推动科技进步的积极作用。然而其科学性、规范性和标准性还有待商榷和探讨,其在营业税、年授信额度、财务负责人、注册一级建造师、甲级设计人才、科技等方面的要求存在缺陷。但不论该标准是与非,其实施体现了国家对建筑施工企业发展的新要求,指明了新方向,要求企业必须实现战略转型,在成本领先、差异化和专业化上下苦功,创造独特的、有利的企业经营管理模式,建立企业长期竞争优势,以获得持续发展的＂令牌＂。笔者就此进行深入思考并提出见解。     

The Contraction of Meaning: The Combined Effect of Communication,Emotions, and Materiality on Sensemaking in the Stockwell Shooting

In this paper, we seek to understand how individuals, as part of a collective, commit themselves to a single, and possibly erroneous, frame, as a basis for sensemaking and coordinated actions. Using real‐time data from an anti‐terrorist police operation that led to the accidental shooting of an innocent civilian, we analyse how individual actors framed their circumstances in communication with one another and how this affected their subsequent interpretations and actions as events unfolded. Our analysis reveals, first, how the collective commitment to a framing of a civilian as a terrorist suicide bomber was built up and reinforced across episodes of collective sensemaking. Second, we elaborate on how the interaction between verbal communication, expressed and felt emotions, and material cues led to a contraction of meaning. This contraction stabilized and reinforced the overall framing at the exclusion of alternative interpretations. With our study we extend prior sensemaking research on environmental enactment and the escalation of commitment and elaborate on the role of emotions and materiality as part of sensemaking.     

企业应收账款的内部控制探讨

一直以来,如何进行应收账款内部控制不仅是经营者所关注的问题,也是财务管理需要解决的难题,论文详细介绍了应收账款的特点和加强其内部控制的必要性,阐述了企业应收账款内部控制目前存在的各种问题,并提出相应的解决措施,如不断提高产品质量和竞争力;强化全体员工的风险管理意识;建立信用体系,完善客户信息管理;健全应收账款内部管理和控制制度,规范业务流程;加强信息传递与沟通协作,提升企业管控效率;加大监督力度,防范经营风险;提升法律维权意识等。通过上述措施不断完善应收账款内部控制,才能正确处理好企业眼前利益与长远利益、局部利益与整体利益的关系,有效提高企业的经济效益,促进企业实现长远健康发展,维护社会主义市场经济秩序和社会公众利益。     

Slumdog cities: rethinking subaltern urbanism

This article is an intervention in the epistemologies and methodologies of urban studies. It seeks to understand and transform the ways in which the cities of the global South are studied and represented in urban research, and to some extent in popular discourse. As such, the article is primarily concerned with a formation of ideas - "subaltern urbanism" - which undertakes the theorization of the megacity and its subaltern spaces and subaltern classes. Of these, the ubiquitous ‘slum’ is the most prominent. Writing against apocalyptic and dystopian narratives of the slum, subaltern urbanism provides accounts of the slum as a terrain of habitation, livelihood, self-organization and politics. This is a vital and even radical challenge to dominant narratives of the megacity. However, this article is concerned with the limits of and alternatives to subaltern urbanism. It thus highlights emergent analytical strategies, utilizing theoretical categories that transcend the familiar metonyms of underdevelopment such as the megacity, the slum, mass politics and the habitus of the dispossessed. Instead, four categories are discussed — peripheries, urban informality, zones of exception and gray spaces. Informed by the urbanism of the global South, these categories break with ontological and topological understandings of subaltern subjects and subaltern spaces.     

The Theory of Socially Embedded Games: The Mathematics of Social Relationships,Rule Complexes,and Action Modalities

In their classic work, Von Neumann and Morgensterndefined a game as simply the totality of the rules which describe it. Theydid not, however, elaborate a theory of rules. Such considerations lead toconceptualizing rules and rule configurations as mathematical objects, specifyingthe principles for combining rules, developing the theory of revising,replacing, and, in general transforming rules and rule complexes. Themathematics is based on contemporary developments at the interface ofmathematics, logic, and computer science. This article, drawing on themathematical theory of rules and rule complexes, extends and generalizes gametheory (GGT). The theory of rule complexes is used to conceptualize andanalyze diverse social relationships, roles, and games as particulartypes of rule complexes. A social role, for instance, is the major basisof an individual's action in a game. It consists of at least four majorcomponents – which are mathematical objects – in the determinationof action: value complex, model of reality (including beliefs and knowledgebases), a repertoire of acts, routines, programs, and strategies, and modalities,role-specific algorithms for determininig or generating action in gamesettings. The article focuses on three types of action modality routineor habitual, normative, andinstrumental modalities. The theory: (1) provides a cultural/institutionalbasis for a theory of gameswhere games, social relationships, and rolesare formalized in terms of rule complexes; (2) explains human action as a formof rule application or rule-following action, which underlies allmodalities of action; (3) formulates the theory that actors construct an action or make choices amongalternative actions by making comparisons and judging similarity (ordissimilarity) between an option or options considered and their norms and values,and, in general, determine whether or not, and to what degree, a value,norm, or goal will be realized or satisfied; (4)reconceptualizes ``game' as a social form and makes a distinction between open and closed games.