级数sum from n=1 to ∞(α(α-1)…(α-n+1)x~n/n!)在x=±1处的敛散性研究

用比较原则及莱布尼兹判别法对函数f(x)=(1+x)α的马克劳林级数在x=±1的敛散情形给予讨论.     

基于3DDCT量化系数的编码策略的改进

详细研究了XYZ编码策略及3DDCT系数的统计特性，提出改进的XYZ变长编码策略．新的编码方法符合3DDCT系数分布特点，提高了编码效率．     

AAS、ICP-MS与NAA的特点及其应用比较

比较元素分析领域中原子吸收光谱、电感耦合等离子体质谱和堆中子活化分析等3种主要方法的利弊，评述其在元素种态分析中的应用，旨在推进科学利用微型核反应堆这一实验平台．     

复合膨润土处理垃圾渗沥液

城市垃圾渗沥液的处理技术和方法一直是人们关注的焦点,目前国内外还无十分有效的垃圾渗沥液处理工艺.实验以膨润土基础,制备出复合膨润土,探索了复合土处理渗沥液的影响因素和反应机理.实验证明,在投加量40g/L,pH=6,搅拌时间20 min 条件下,复合土对渗沥液 COD_(Cr)去除率达84％,X 射线衍射结果表明,复合膨润土对渗沥液的处理作用在于膨润土与硫酸铝的混凝—吸附—共沉淀.处理后 COD_(Cr)178mg/L,色度去除率96.7％,处理后色度为20倍.     

最佳(F,K,1)光正交码的构造算法研究

(F ,K ,1)光正交码 (OOC’s)是适合于光码分多址 (OCDMA)通信的最佳地址码 ,但成功构造最佳 (F ,K ,1)光正交码十分困难。针对该问题 ,研究了一种构造算法 ,给出了构造该光正交码的具体算法及相应的计算机辅助设计方法。通过该方法可以容易地构造出最佳 (F ,K ,1)光正交码。     

电网电流检测系统的标度变换和单片机显示

本文提出了一种用霍尔传感器测量电网电流的方法主要说明其标度变换和单片机显示的过程。     

原始计算对电路设计的影响

随着大型阵列型集成电路的飞速发展，电路设计的思想必然随之更新。本文从原始计算方法的角度重新审视了当前计算机技术和电路系统设计技术的发展方向，结合通用化思想和硬件软化及其网络化的发展方向，简述了算法思想对当前电路设计方法的深远影响。     

Fast Algorithms for Revision of Some Special Prepositional Knowledge Bases

In this paper, the computational complexity of prepositional clause set counterfactuals is discussed. It is shown that the computational complexity of prepositional clause set counterfactuals is at the second level of the polynomial hierarchy, and that the computational complexity of prepositional Horn clause set counterfactuals is at the first level of the polynomial hierarchy. Furthermore, some polynomial algorithms are presented for some special prepositional clause set, such as the unique satisfiable clause set and the clause set of which only one subset is minimally inconsistent with the input clause whose inconsistency check can be solved in polynomial time.     

The Progress of a Microbeam Facility in the Institute of Plasma Physics

The progress of a microbeam facility in the institute of Plasma Physics was discussed in this paper.This kind of equipment can supply single-particle beam which may be implanted into cells in micrometer-radius and measured by a new outstanding detector among global microbeam systems.Measurements by some plain targets showed that the highest current after the accelerator tube can be larger than 20μA ,the H2^ current before the second bending magnet is near 0.9μA ,the current after the second bending magnet is near 0.8μA,and the current of the beam line(after a 2-mm diameter aperture)is near 0.25nA which is enough for the single-particle microbeam experiment.It took scientists 3 months to do their microbeam experiment after setting up the qccelerator beam line and get the microbeam from this equipment.Two pre0collimators were installed between the 2-mm diameter aperture and the collimator to survey the beam.Tracks on the CR39 film ectched in the solution of NaOH showed that the beam can go through the collimator including a 10μm diameter aperture and the 3.5μm thick vacuum sealing film(Mylar).A new method,which is called optimization of the beam quality,was put forward in this paper,in order to get smaller diameter of beam-spot in microbeam system.     

The Influence of Magnetic Permeability on the Configuration of magnetic Field in Helimak Device

The Helimak of USA is a plasma physics experimental device designed and built by CASIPP.Its configuration of magnetic field is of very importance during the operation of this device.In this paper,the influence of magnetic permeability on configuration of magnetic field will be discussed due to the effect of weld metal in the vacuum vessel of Helimak,and some conclusion is useful for some engineering designs of the fusion experimental device.