马传骐：北汽的“财务艺术家”

财务艺术 初见马传骐,很难想象他是位有着近30年工作经验的财务人,他独特潇洒的气质更像是一名艺术家,或许他内在的确是一位艺术家、     

涂庆华：财务的“收”与“放”

春节刚过,涂庆华不得不提前结束休假,从厦门赶回江西,开始新一轮忙碌。“原计划是陪家人在厦门多休息几天,但现在,我不得不先回了,过几日再去接他们”。     

李守武：“SRRV”魔方

以集团公司发展战略（Strategy）为牵引,以优化配置财务资源（Resource）为核心,以有效管理财务风险（Risk）为重点,以持续创造企业价值（Value）为目标的“SRRV”集团化财务管控模式,是中国兵器装备集团公司的制胜之道,而主导这项工作的,就是集团公司副总经理、总会计师李守武。     

共享集团：财务集中

12家子公司没有财务部门,也没有自己财务人员,全部由集团财务中心集中统一管理。这就是财务管理的共享集团模式!     

蒋巧玲：品牌总枞“站柜台”做起

作为一名MBA，蒋巧玲的外企生涯是从“站柜台”开始的，这在本土企业很少见。     

CFO“冷”对市值管理

任何一个新概念的提出,都需要经过市场的检验。就在“市值管理”成为热议话题的同时,另一部分人却对之持冷静旁观的态度,正略钧策管理咨询公司合伙人赵家俊就是后者的代表。     

于克成：九项增值实举

学而实习之,不亦乐乎,财务工作也是如此,学习了相应的专业及管理知识应用到具体的工作实践中并产生效果是一件快乐的事情。     

李飞龙：财管“门道”

在行业快速发展以及企业自身财务管理具有特殊性的情况下,无论是优化内部资产负债,还是布局国际化财务管理,或是推动企业价值管理,中海油服都有着值得借鉴的财管“门道”。     

解开杰克·韦尔奇“死结”

全面预算管理是企业财务管理工作中的一个重点,亦是难点。从美国到中国的企业都有着相似的误区,杰克·韦尔奇也无奈于实践中的死结。那么,何为死结？死结何解？     

黄富成：“跳出财务”

大量的纷繁复杂的并购工作也在挑战着企业管理者们的智慧。CFO要如何做好相应的财务整合工作？在并购过程中要注意哪些财务问题？对此,《新理财》专访了普华永道中国海外投资咨询服务主管合伙人黄富成。     

Burn-in considering yield loss and reliability gain for integrated circuits

This paper presents burn-in effects on yield loss and reliability gain for a lifetime distribution developed from a negative binomial defect density distribution and a given defect size distribution, after assuming that the rate of defect growth is proportional to the power of the present defect size. While burn-in always results in yield loss, it creates reliability gain only if either defects grow fast or the field operation time is long. Otherwise, burn-in for a short time could result in reliability loss. The optimal burn-in time for maximizing reliability is finite if defects grow linearly in time and is infinite if defects grow nonlinearly in time. The optimal burn-in time for minimizing cost expressed in terms of both yield and reliability increases in the field operation time initially but becomes constant as the field operation time is long enough. It is numerically shown that increasing mean defect density or defect clustering increases the optimal burn-in time.     

Analysing maintenance data to gain insight into systems performance

The high cost of maintenance in the processing industry implies the need for optimal planning of maintenance strategy. In order to achieve this there is a need to understand the underlying failure processes, which are often very complex. In this paper, a new semi-parametric approach, combining Cox regression with density kernal smoothing, is introduced to estimate the underlying performance. The approach has been applied to several processes and it allowed insight into each process, which would not have been achieved if traditional approaches had been used. Particularly, the refurbishment of processes had a significant impact on the rate failure. This paper concludes by assessing this impact of refurbishment on the maintenance programme.     

“If You Can Turn a Rectangle into a Square, You Can Turn a Square into a Rectangle ...” Young Students Experience the Dragging Tool

This paper describes a study of the cognitive complexity of young students, in the pre-formal stage, experiencing the dragging tool. Our goal was to study how various conditions of geometric knowledge and various mental models of dragging interact and influence the learning of central concepts of quadrilaterals. We present three situations that reflect this interaction. Each situation is characterized by a specific interaction between the students’ knowledge of quadrilaterals and their understanding of the dragging tool. The analyses of these cases offer a prism for viewing the challenge involved in changing concept images of quadrilaterals while lacking understanding of the geometrical logic that underlies dragging. Understanding dragging as a manipulation that preserves the critical attributes of the shape is necessary for constructing the concept images of the shapes.     

Solitary wave solution for inhomogeneous nonlinear Schrödinger system with loss/gain

This paper deals with the propagation of solitons in real fibres, governed by the system of inhomogeneous nonlinear Schrödinger (INLS) equations. The Painlevé singularity structure analysis is utilized to check for the integrability of the system and from the analysis, the system is found to admit soliton-type lossless wave propagation. The system is transformed to its homogeneous counterpart using a suitable variable transformation and the soliton solutions are obtained through Bäcklund transformation after constructing the explicit Lax pair for the system. The one-soliton solutions are plotted for different choices of inhomogeneity parameters and the evolutionary characteristics of the solutions are analyzed.     

On the Cauchy problem for the nonlinear Schrödinger equations with time-dependent linear loss/gain

This paper is devoted to the Cauchy problem for the nonlinear Schrödinger equation with time-dependent loss/gain which reads i_ut+Δu+λ|u|^αu+ia(t)u=0$i{u}_t+\mathrm{\Delta }u+\lambda {|u|}^{\alpha }u+ia(t)u=0$. This equation appears in the recent studies of Bose–Einstein condensates and optical systems. We obtain some global existence and blow-up results which depend on the size of the loss/gain coefficient. In particular, we prove the global existence for the energy critical nonlinearity. By scaling and compactness arguments, we also discuss asymptotic profiles and concentration properties of blow-up solutions.     

How to Turn All Lights Out

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How to Turn All Lights Out

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Algebra at the Turn of the Century

At the turn of the century it seems to be appropriate to pause and to try to envision future possibilities. We want to discuss the prospects of algebra. To look into the future requires an understanding of the past, the longstanding aims, but also the difficulties which have been encountered. We are going to review part of the history of algebra in order to outline its present state. It is important to notice the missed opportunities and to analyze the reasons. To recognize the present possibilities requires to be aware of the tools which now are available and which may not yet have been used in an optimal way. We urge the reader to focus attention to the need for algebraic considerations in all parts of mathematics but also outside of mathematics. Of course, a view back should also strengthen the interest in classical open problems which now may be feasible to attack.This is a the written version of a lecture presented at the National Conference on Algebra VII, held in Beijing Normal University, October 1999.