TREANOR算法有病态吗?

文在计算“HL-1”两台电机并车过程时,、用了Treanor方法,且指出算法有病态现象。我们的分析是Treanor算法不存在病态现象,实际计算也表明Treanor算法可正确地描述并车过程。 描述两台双Y30°电机并车同步过程的微分方程为     

ON CALCULATION OF THE HYDROGEN NEGATIVE ION BETA SPECTRUM

The wavefunctions of the gxound states of negative hydrogen ion and the 10 first lowest ¹S states of helium atom are calculated by using a general wavefunction expansion form.The beta spectrum of the negative tritium ion is given by calculating a few most important transitions and including the remainder in terms of the closure approximation. Besides,the transition to ¹S(2S²) state is also studied.The result showed that the transition to a double-electron excited state of the helium atom may be very important. It indicates that there probably exists a resonance in the continuous spectrum.     

双波长比值光谱差异度指数用于人体舌苔舌质分离

舌苔舌质信息定量描述作为中医舌诊的重要内容,直接影响到中医临床舌诊的准确性。基于生物医学光子学理论,利用高光谱技术,提出一种基于双波长比值光谱差异度指数进行人体舌质舌苔分离的光谱分析新方法。首先采集被测对象371.200～992.956 nm之间共343个波长的舌体高光谱信息,随机选取15位被测对象进行光谱特征分析。绘制15位被测对象舌质舌苔全波段光谱曲线并进行比较,通过观察发现,舌质舌苔反射光特征差异与血红蛋白在该波段的光学特征变化相吻合,在500～750 nm之间,水对光的吸收很少,而舌体表面布满血管,光的吸收主要受到血红蛋白的影响,基于舌质舌苔在573和700 nm两波段光谱吸收差异,计算双波长比值,提取舌质舌苔光谱特征差异度指数,根据个体差异,分别提取不同被测对象舌质舌苔光谱特征差异指标,进行舌质舌苔区域分离,实验结果发现,对同一被测对象舌体苔质提取光谱差异度指数SDI,舌苔舌质光谱差异度指数存在一定差异性,由于个体的不同,具有各自明显的舌质、舌体差异度指数分割线,实验结果表明,运用双波长比值光谱差异度指数的光学表达形式能够用于舌质舌苔分离,同时该方法也能够为进一步中医临床舌诊提供客观依据。     

THE MOMENTUM SELECTOR OF BIG CLOUD CHAMBER SET

Using a“preselection-register-operation for reselection”program,a selection systemof the Yunan big cloud chamber set used for cosmic ray reseach is projected andconstructed.A small on-line digital computation technigue is applied to the momentumselector of the system,and a special computation element is designed.According tothe deflection angle and momentum of a charged particle passing through the magniticfield,computation and logieal judgment can be done immediately for the track signal registered before.     

(Tb,Dy)Fe2金属间化合物的巨大磁致伸缩

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托卡马克中撕裂模的抑制

本文分析与计算了共振螺旋场对自发撕裂模的抑制作用。通过解电阻MHD方程证实了螺旋场能使m=2的撕裂模增长速度减慢一倍左右。同时也讨论和计算了边界控制场对撕裂模的抑制作用。 关键词：     

离子注入对超导转变温度的影响

本文中提出了超导转变温度T_c与离子注入剂量φ的经验关系式,T_c=1.13θ_Dexp[-1/(A/(Φ+1)+B)].将这一关系式和若干实验结果进行了对比,结果表明,计算值与实验结果符合得很好。最后我们讨论了这一关系式的物理基础,认为由于费密面附近出现了杂质能带,导致了样品T_c的变化。 关键词：     

非晶态Fe87-xSixB13合金的磁化强度、电阻与温度的关系

本文研究了非晶态Fe_87-xSi_xB₁₃(x=0,9.6,14.5)合金的饱和磁化强度、电阻率与温度的关系。得到样品的居里温度T_C和晶化温度T_cr随Si含量的增加而明显提高。低温下的热磁关系符合布洛赫的T^3/2定律,计算出自旋波劲度系数D从x=0时的62meV·A²增加到x=14.5时的111meV·A²。从D值和Handrich理 关键词：     

Two-dimensional photon counting imaging detector based on a Vernier position sensitive anode readout

A two-dimensional photon counting imaging detector based on a Vernier position sensitive anode is reported. The decode principle and design of a two-dimensional Vernier anode are introduced in detail. A photon counting imaging system was built based on a Vernier anode. The image of very weak optical radiation can be reconstructed by image processing in a period of integration time. The resolution is superior to 100 μm according to the resolution test. The detector may realize the imaging of very weak particle flow of high-energy photons, electrons and ions, so it can be used for high-energy physics, deep space exploration, spectral measurement and bio-luminescence detection.