ROLE OF α-PSEUDO-UNIVEX FUNCTIONS IN VECTOR VARIATIONAL-LIKE INEQUALITY PROBLEMS

In this paper, we introduce a new class of generalized convex function, namely, a-pseudounivex function, by combining the concepts of pseudo-univex and α-invex functions. Further, we establish some relationships between vector variational-like inequality problems and vector optimization problems under the assumptions of α-pseudo-univex functions. Results obtained in this paper present a refinement and improvement of previously known results.     

A theoretical model for mid-and low-latitude ionospheric electric fields in realistic geomagnetic fields

The geomagnetic fields, which play important roles in the ionospheric dynamo, can greatly affect the global distribution of ionospheric electric fields, currents and other ionospheric electrodynamics phenomena. In the study of ionospheric electrodynamics phenomena, such as the longitudinal variations of ionospheric electric fields, the non-dipolar component of the geomagnetic fields must be taken into account. In this paper, we deduce a theoretical electric field model for ionospheric dynamo at mid- and low-latitude which adopt a modified magnetic apex coordinates system. In the new electric field model, the geomagnetic fields can be calculated from either the IGRF model or the dipole field model, and the neutral winds and conductivities are calculated based on empirical models. Then the dynamo equation for the electric potential is finally solved in terms of the line-by-line iteration method, and the ionospheric electric fields and currents are derived from the calculated potential. Our model can reproduce the main features of the ionospheric electrodynamics processes, so it will be a useful tool for the investigation of the upper atmosphere and ionosphere.     

世界经济层内进化浅论

本文将物理系统层内进化扩展到世界经济系统中去，通过对世界经济循环结构与物理系统进化的层次结构关系的探讨，论述了世界经济周期的特征及经济周期的熨平作用。     

汽车事故记录仪

本文提出了汽车事故记录仪的设计思想及给出了其实现电路硬件设计方案，详细阐述了汽车事故记录仪中测量刹车速度的非接触测量方法－多普勒效应测速法。并以实验装置为依据，给出了实验数据，证明了该测速法用于汽车事故记录可行性和高精度的结果。     

南京市城市绿地规模与经济发展水平关系分析

城市绿地是城市生态环境的重要组成因子之一．发展城市绿地，不仅可为城市居民创造良好的生存环境，而且通过改善城市人居环境，促进旅游业和服务业的发展，以及创造更好的外商投资环境，将间接地对城市经济的发展产生显著的促进作用．以南京市为研究对象，采用回归分析方法，分析南京市城市绿地规模与城市经济发展水平之间的定量关系，结果表明二者之间有显著相关性．此外，还建立了南京市城市经济增长与各驱动因子之间的多元线性回归模型，并据此模型对南京市2003～2010年城市经济增长对人均公共绿地面积的需求做了初步预测，发现2010年的预测值与南京市编制的城市绿地规划所规定的该年人均公共绿地面积较为接近，表明本研究的方法和成果具有较好的可靠性．     

On the Foundations of Constructive Mathematics – Especially in Relation to the Theory of Continuous Functions

We discuss the foundations of constructive mathematics, including recursive mathematics and intuitionism, in relation to classical mathematics. There are connections with the foundations of physics, due to the way in which the different branches of mathematics reflect reality. Many different axioms and their interrelationship are discussed. We show that there is a fundamental problem in BISH (Bishop’s school of constructive mathematics) with regard to its current definition of ‘continuous function’. This problem is closely related to the definition in BISH of ‘locally compact’. Possible approaches to this problem are discussed. Topology seems to be a key to understanding many issues. We offer several new simplifying axioms, which can form bridges between the various branches of constructive mathematics and classical mathematics (‘reuniting the antipodes’). We give a simplification of basic intuitionistic theory, especially with regard to so-called ‘bar induction’. We then plead for a limited number of axiomatic systems, which differentiate between the various branches of mathematics. Finally, in the appendix we offer BISH an elegant topological definition of ‘locally compact’, which unlike the current definition is equivalent to the usual classical and/or intuitionistic definition in classical and intuitionistic mathematics, respectively.     

《多绳落地钢井架设计专家系统》软件的实现

本文介绍了面向矿山特种结构工程的一个专家系统，并论述了程序设计的原理、系统的功能，以及与ＡＵＴＯＣＡＤ软件包的接口。     

陕晋蒙交界地带披砂岩丘陵区的侵蚀及其治理

晋陕蒙交界地带的披砂岩丘陵区是黄游中游河道粗泥沙的主要来源区之一。侵蚀十分严重,已导致沟谷面积迅速扩大,土层加速变薄及土壤中有机质和养分大量流失。强烈侵蚀的原因,一是历时短强度大的暴雨;二是水分入渗能力差.导致地表径流增大的披砂岩岩性特性;三是包括滥樵、乱垦和过牧的人类活动的影响。为了有效地防治披吵岩丘陵区的严重侵蚀,首先应以生物措施为主,工程措施为辅大力做好坡地的治理;其次,生物措施与工程措施并重,认真治理沟道;第三,必须制止乱垦,采用合理的耕作系统;第四,以草定畜,制止过牧。     

A novel mechanism for jumping in the indian ant<Emphasis Type="Italic">Harpegnathos saltator</Emphasis> (Jerdon) (Formicidae,Ponerinae)

The Indian antHarpegnathos saltator may be unique among insects in using its jumping capacity not only as an escape mechanism but also as a normal means of locomotion, and for catching its prey in flight. High-speed cinematography used to analyse the various phases of the jump suggests thatHarpegnathos employs a novel jumping mechanism to mediate these behaviours: namely the synchronous activation of its middle and hindlegs. Electrophysiological recordings from muscles or nerves in pairs of middle and hindlegs show remarkably synchronous activity during fictive jumping, supporting the synchronous activation hypothesis.Harpegnathos is not the only ant to jump, and a cladistic analysis suggests that jumping behaviour evolved independently three times during ant evolutionary history.     

电阻梯形网络电路的计算机辅助分析

在介绍电阻梯形网络电传统分析方法的基础上分析其不足,并根据阻元件的线性特征,提出了一种新的算法。