The Goldbach 3-primes property for polynomial rings over certain infinite fields

On the basis of Effinger and Hayes’ theorem about the Goldbach 3-primes property of polynomial rings F[x] over finite fieldsF, by model-theoretic method it is proved that for each characteristick (including 01, there exist infinitely many infinite fieldsF such that F[x] also satisfy Goldbach 3-primes property.     

垂直射流沿恒温热平面的热量传输和速度分布

研究了二维冷液体射流垂直冲击一个恒温热平面时，射流沿平面的热量传输和速度分布．通过对Ｃｒｏｃｃｏ变换加以推广，求得了问题的相似解，揭示了速度梯度，温度分布和剪切力之间的关系．     

一种利用单馈源实现双波束的理论模型

给出了在一个角锥喇叭馈源上实现有一定夹角双波束的理论模型，并分析了该模型的E面，H面远场及两波束夹角的形成因素。     

对量子力学在认识论上的思考

本文以辩证唯物主义为指导，对量子力学中的因果律进行了的讨论。     

电机交流采样信号数字滤波的分析

介绍了运用ＢｏｒｌａｎｄＣ＋＋所设计的瞬态分析软件，分析了三相电机交流采样中产生大误差的原因，提出数字滤波中应注意的问题及解决的方法。     

Gravity wave activity and spectra in the upper mesosphere at Wuhan, China during early March 1996

Sodium layers (75–105 km) were measured by Na lidar on three nights from 1 to 3 of March 1996. The lidar data were used to calculate the relative atmospheric density perturbations and their spectra. The average r. m. s. density perturbations for early March at Wuhan are 5%. The Vertical wave number spectra exhibit power-law shapes with an average slpoes of −2. 12 in the upper mesosphere when the associated density mean quantity of the day was used. Supported by the Fundation of Chinese Academy of Science Ai Yong: born in 1958, Ph. D. graduate student     

四波混频光相关器中的多用户干扰和噪声

研究了四波混频光相关器随机以及同步工作方 下系统中存在的多用户干扰和各种噪声，包括放大自发辐射散弹噪声，接收机噪声等。     

Multiple Criteria Decision Making with Respect to Multiple Experts

１ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｔｈｅｓｔｕｄｙｏｆｄｅｃｉｓｉｏｎｍａｋｉｎｇｉｎａｃｏｍｐｌｅｘｅｎｖｉｒｏｎｍｅｎｔ，ｔｈｅｔｅｒｍ“ＭｕｌｔｉｐｌｅＯｂｊｅｃｔｉｖｅＤｅｃｉｓｉｏｎＭａｋｉｎｇ（ＭＯＤＭ）”ｉｓａｌｓｏｆｒｅｑｕｅｎｔｌｙｃｉ...     

近20年来国际化学教育研究的趋势和走向

介绍近２０年来国际化学教研究的趋势和走向，从研究内容，研究方法及研究理论等方面进行了较为详细的阐述和评介。     

STRONG CODING THEOREM AND ASYMPTOTICERROR EXPONENT OF ARBITRARILY VARYING SOURCE WITH A FIDELITY CRITERION

1.IntroductionLetXbeafiniteset.Adiscretememorylesssource(DMS)withsourcealphabetXisasequenceofi.i.drandomvariableswithsourcedistributionP={p(x):xEX}.LetYbeanotherfinitesetcalledreproductionalphabet,andd'XxY-- [0, co)beagivendistortionmeasure.Thedistortionbetweensequencesx"EX"andy"6Y"isdefinedasd(x",y")=n--1Z:=,d(x,,yi).AsubsetBgY"iscalledasourcecode.Therateofthecodeisdefinedas.--ilogIBI.Inthispaper,alllogarithmsandexponentsaretakentobase2.Forx"EX",defined(x",B)=minbneBd(x",b").Given…