AUTHOR INDEX TO VOLUME 3,2005

Abolhassani，M.D.一:Hejazi，M.;Ah- madian，A.;and Amjadi，A.:Comparison of optieal deteetion system，PVDF deteetion system，and PVDF needle hydroPhone for oPtoacoustie tomograPh扒593 Ahmadian，人.see Abolhassani，M，D.，593 All劝 adi，A.see Abolhassani，M.D.，593 Bai，Ming see Zhang，Douguo，107 Bao，Huanmin see丫V么ng，Yanyong，4; W么ng，Yanyong，6;Jia，Doxlgfang，311 Bao，N.K.see Chen，Zhongyu，319 Bi，Jinzi see Yu，Ting，92 Bian，Jing see Xie，Hongyun，156 Bu，Ydng see …     

AUTHOR INDEX TO VOLUME 4,2006

An，Geng see Liang，Gongying，59 B乙，Peng一;and Liu，Junhua:Mixture gas component eoneentration analysis based on supPort veetor maehine and infrared spee- trum，243 Bai，XiangZhong see Chen，Mingyang，63 Bi，Guojiong see Zhang，Shenjin，658 Bi，Jin活1 s     

ICP—AES法测定锌及其化合物中的杂质元素

采用样品溶解后直接测定及氢氧化钇共沉淀将锌与被测杂质元素分离后测定相结合，研究了锌及其化合物中Ａｇ，Ｃｏ，Ａｌ，Ｎｉ，Ｆｅ，Ｃｕ，Ｃｄ，Ｃｒ，Ｍｎ，Ｉｎ，Ａｓ，Ｐｂ，Ｓｎ，Ｓｂ，Ｂｉ等１５个杂质元素的ＩＣＰ－ＡＥＳ测定方法，相对标准偏差１．６－８．１％。     

灵武长枣VC含量的高光谱快速检测研究

采用可见-近红外高光谱成像技术结合化学计量学方法检测灵武长枣维生素C(VC)含量，探究一种全新的水果内部成分的快速无损检测方法。采用高效液相色谱法(HPLC)测得长枣的VC含量化学值，可见-近红外高光谱成像系统采集164个灵武长枣400～1 000 nm的高光谱图像，利用ENVI4.8软件提取图像的感兴趣区域(region of interest，ROI)，计算其平均光谱，获得光谱值，将化学值与光谱值通过The UnsecramblerX 10.4软件建立模型。利用蒙特卡洛交叉验证法剔除异常值，采用光谱理化值共生距离法(sample set partitioning based on joint x-y distance，SPXY)进行样本划分以提高模型的预测性能；对光谱采用移动平滑(moving average)、中值滤波(median filter)、归一化(normalize)、基线校准(baseline)、多元散射校正(multiple scattering correction，MSC)、去趋势(detrending)和标准正态变量变换(standard normal variate，SNV)等7种方法进行预处理；为进一步减少数据量，降低维度，提高运算速度，使用竞争性自适应加权算法(competitive adaptive reweighted sampling，CARS)、无信息变量消除算法(uninformative variable elimination ，UVE)和连续投影算法(successive projections algorithm，SPA)提取特征波长，以期实现以少数波段代替全波段；将全波段光谱(full spectrum，FS)以及CARS, UVE和SPA三种方法提取的特征波长分别建立偏最小二乘(partial least squares wavelength regression，PLSR)和支持向量机(support vector machine，SVM)模型，从而确定最优的建模模型。利用蒙特卡洛交叉验证法共剔除7个异常样本，采用SPXY法将剔除异常样本后的157个数据区分为校正集和预测集，校正集中样本个数为117，预测集中样本个数为40。将未经光谱预处理的建模结果与分别经过七种光谱预处理的建模结果相比，选择未经光谱预处理的数据进行后续分析；将未经光谱预处理的光谱值采用CARS，UVE，SPA方法进行提取特征波长，CARS共优选出406，415，487，631，636，655，660，665，670，684，689，694，723，732，747和881 nm下的光谱变量16个，利用CARS提取出的特征波长占总波长的12.8%；UVE共优选出406，415，627，631，636，651，655，660，665，670，675，679，684，689，694，699，703，708，742，747，751，756，761，766，771，775，780，785，790，795，919和924 nm下的32个特征波长，利用UVE提取出的特征波长占总波长的25.6%；SPA共优选出401，665，684 nm三个特征波长，利用SPA提取出的特征波长占总波长的2.4%。将全波段光谱与提取出的特征波长建立PLSR模型和SVM模型，对比模型结果显示UVE-SVM模型最优，其R2_c为0.847 1，R2_p为0.714 9，说明UVE有效地对光谱进行降维，简化了数据处理过程。本研究对高光谱成像技术在水果领域的应用进行了有益探索，探究了一种全新的灵武长枣VC含量的无损检测方法，相应建立的可见-近红外高光谱模型为其他水果成分的快速检测提供了理论基础。     

非碳纳米管研究的新进展

文章系统地论述了非碳纳米管的制备，较详尽地介绍了多种非碳纳米管制备最新的进展，包括硫化物、氮化物、氧化物等等，特别重点地总结了非碳纳米管前沿材料，例如WS2，Bi2S，，ZnS，GaN，BN，AlN，InP，Eu2O3，，V2O3等．最后对非碳纳米管的研究趋势作了展望．     

循环流化床热电气三联产装置研究

循环流化床热电气三联产装置研究岑可法，方梦祥，骆仲泱，李绚天，陈飞，王勤辉，陈冠益，倪明江（浙江大学热能工程研究所杭州３１００２７）关键词循环流化床，气化，煤气蒸汽联产１前言在近几年来，我国能源仍主要以煤炭为主，而目前煤炭的绝大部分作为燃料直接燃用，...     

σ^＊和Ф介子对有限温度中子星物质的影响

考虑到矿，中介子的贡献及重子八重态{n，p，∧，∑^-，∑^0，∑^＋，≡^-，≡^0}，采用相对论平均场方法，在5—25MeV的有限温度范围内，对中子星物质的性质进行了研究．发现当考虑到σ^＊，Ф介子的贡献后，超子出现的临界密度降低了（但对∧超子，影响并不显著），超子的粒子数密度增加了，在能量密度较高时物态方程变软，中子星的最大质量变小而相应的半径增大，中子星的中心粒子数密度、中心能量密度和中心压强都降低了．当温度为较低的T=5MeV，10MeV时，σ^＊，Ф介子的参与使出现∑^0，≡^0，∑^＋超子的临界密度极大地降低了；但当温度为较高的T=15MeV，20MeV，25MeV时，影响则较小．对于∧，∑^-，≡^-超子来说，在上述所有温度下，矿，中介子对超子出现的临界密度的影响都不明显．     

ICP-AES法同时测定茶叶中的锌、铁、锰、铜、镍、镁

研究了用硝酸＋硫酸＋高氯酸消解样品，用ICP－AES法同时测定茶叶中锌，铁，锰，铜，镍，镁的新方法，在选定的最佳条件下，测锌，铁，锰，铜，镍，镁的检出限分别为4．2，7.8,0.4,7.3,7.6,4.8ng.mL^-1，回收率为94．7％－104．2％，RSD为0．3％－4．7％，该法准确，快速，简便，适用于茶叶样品的测定，结果令人满意。     

提高教师业务能力搞好物理实验课教学

当前，对物理实验课缺乏正确认识，师资结构不合理，素质较差，资金不足等问题，严重影响实验课教学质量．针对以上问题，采取提高认识，按教师特长安排教学任务，调动教辅人员积极性，加强横向联合等教改措施，取得了较好效果。     

对感应起电机特殊故障的修理一例

感应起电机的主要部件起电盘，是由适当形状的金属箔均匀地粘贴在有机玻璃圆盘上而成，莱顿瓶也是由金属箔粘贴在玻璃瓶的内、外表面后，加装电极而成．但有的生产厂家，为降低成本，用导电性能极差的们状物取代金属箔，涂敷在有机玻璃上，制成起电盘和莱顿瓶．在刚制成后，因这些糊状物尚未干透，勉强可以导电，凑合着能用，但时间一长，糊状物干透后导电性能急剧下降，甚至一点也不能导电，实验时，无论你如何操作，起电机也不会起电．我们实验室的几台起电机，均属这种故障，表面看来，均为正常，电路连接也无错误，这给修理带来一定难度…     

Dynamics of an Orientational-Kink Pair in a Hydrogen-Bonded Chain in an External Field

We discuss dynamic properties of an orientational-kink pair in hydrogen-bonded chains in the presence of an external force and damping, based on a new two-component soliton model. We study the scattering of an electromagnetic wave by an orientational-kink pair. Finally, we find the expressions of the scattering cross-section of an orientational-kink pair for an electromagnetic wave and the mobility of the orientational-kink pair.     

On the analogy between the classical wave optics and the quantum wave phenomena

A striking correspondence between the effects of an auxiliary-mode-assisted transfer of light power between two waveguides and an auxiliary-state-assisted transfer of an electron between two quantum dots is highlighted by the example of an exactly solvable model.     

Teleportation of a multiqubit state by an entangled qudit channel

We investigate the problem of teleportation of an M-qubit state by using an entangled qudit pair as a quantum channel and show that the teleportation of a multiparticle state can correspond to the teleportation of a multi-dimensional state. We also introduce a quantum-state converter composed of beamsplitter arrays, on/off-detectors and cross-Kerr couplers and demonstrate that the state conversion from an M-qubit to an N-dimensional qudit and vice versa can be implemented with this converter, where N=2^M. Based on this, an experimentally feasible scheme for the teleportation of an M-qubit via an entangled N-level qudit pair channel is proposed.     

Generalized tensor ABCD law for an elliptical Gaussian beam passing through an astigmatic optical system in turbulent atmosphere

The propagation of an elliptical Gaussian beam (EGB) through an astigmatic ABCD optical system in a turbulent atmosphere is investigated. An analytical formula for the average intensity of an EGB and a generalized tensor ABCD law for the generalized complex curvature tensor are derived. As an application example, we derived an analytical formula for the average intensity of an elliptical flat-topped beam propagating through an astigmatic ABCD optical system in a turbulent atmosphere. As a numerical example, the focusing properties of an EGB focused by a thin lens in a turbulent atmosphere are studied. It is found that the focused beam at the focal plane becomes a circular Gaussian beam when the atmospheric turbulence is strong enough, and the beam width of the circular Gaussian beam is determined by atmospheric turbulence strength, focal length of the thin lens, and wavelength of the initial beam but is independent of the initial beam widths (i.e., initial intensity distribution).     

Calculation of phonon life time in amorphous solids

We present the calculation of phonon life time at low frequencies in an amorphous solid, which is assumed to be characterized by an elasticity that exhibits spatial fluctuation. Thermodynamic Green’s function method is used to compute phonon self-energy, and an iterative method is devised to obtain an improvement upon the first order perturbation calculation. The elasticity correlation is taken to be an exponentially falling function of distance. We obtain an inverse life time that varies as the fourth power of phonon frequency for small values of the latter, and whose frequency-dependence becomes weaker and weaker as the frequency increases.     

一种光电成像系统调制传递函数的测量方法

调制传递函数(MTF)是设计和评价光电成像系统的重要参数,在证明了边缘图像的边缘扩展函数与累积直方图逆函数存在着线性关系的基础上,提出了一种基于统计直方图的MTF测量方法,设计了包括光学系统和探测器的仿真实验,搭建了包括积分球、靶标、平行光管和数字摄像机等装置的物理实验平台,以光电成像系统的设计参数和理论模型得到的理论...     

Anisotropic Bianchi-I universe with phantom field and cosmological constant

We study an anisotropic Bianchi-I universe in the presence of a phantom field and a cosmological constant. Cosmological solutions are obtained when the kinetic energy of the phantom field is of the order of anisotropy and dominates over the potential energy of the field. The anisotropy of the universe decreases and the universe transits to an isotropic flat FRW universe accommodating the present acceleration. A class of new cosmological solutions is obtained for an anisotropic universe in case an initial anisotropy exists which is bigger than the value determined by the parameter of the kinetic part of the field. Later, an autonomous system of equations for an axially symmetric Bianchi-I universe with phantom field in an exponential potential is studied. We discuss the stability of the cosmological solutions.      

New electrostatic cylindrical energy analyzer

The focusing properties of an ideal cylindrical field in full relativistic field have been investigated for charged particles originating from an extended source and an analytical solution for the equations of motion has been provided. This focusing system can be used for production of electrostatic energy analyzer provided surface analysis from an extended area.     

A Simple Method for Measuring the Q Value of an NMR Sample Coil

A simple method for measuring the Q (quality factor) value of an NMR sample coil based on an impedance matching principle is described. This method has the advantage of utilizing a signal generator and reflection coefficient bridge rather than an expensive high-frequency Q meter and offers an alternative means of measuring the Q value of an NMR sample coil or any other radio frequency coil.     

利用共焦扫描显微术和变迹术相结合实现光学超分辨

运用适当形式匠光瞳滤波器民成像系统点振响应的分布，歙 具心于冲击函数的形式，这样就有可能实现光学超分辨，但变迹术的运用往往会因其强烈的旁瓣效应而导致成像系统对比度的急剧下降。本文提出的共焦型超分辨方案则能有效地抑制上述旁瓣。此外，本文学进一瞠提出了实现三维光学超分辨手理论框轲。