柱端安培检测毛细管电泳芯片及其初步应用

采用两步蚀刻技术制作集成工作电极导管的毛细管电泳芯片,30 μm直径的碳纤维微电极通过导管与分离通道末端对齐和固定,芯片上还制作了阴极通道以固定电泳负极.以神经传递物质多巴胺(DA)和邻苯二酚(CA)表征制作的芯片,DA和CA测定的线性范围为5~200 μmol以及20~800 μmol,检测限分别是0.51和2.9 μmol(S/N=3).三种酚类的检测结果表明该芯片可应用于环境样品的分析.     

Net Charge Fluctuation and String Fragmentation

We present the simulation results of the net charge fluctuation in Au Au collisions at √Snn=130 GeV from a dynamic model, JPCIAE, and its revisions. The simulations are done for the quark-gluon matter, the directly produced pions, the pion matter, and the hadron matter. The simulated net charge fluctuation of the quark-gluon matter is close to the thermal model prediction for the quark-gluon gas. However, the discrepancy exists comparing the simulated net charge fluctuation for directly produced pions and the pion matter with the thermal model prediction for pion gas and the resonance pion gas, respectively. The net charge fluctuation of hadron matter from default JPCIAE simulations is nearly 3.5 times larger than quark-gluon matter. A discussion is given for the net charge fluctuation as an evidence of QGP phase transition.     

Green's Function Method for Perturbed sine-Gordon Equation

The usual Green's function method is introduced to show the completeness of the squared Jost solutions of the multi-soliton case in this work. Since sine-Gordon equation contains second derivative in time, the known procedure with generalized Marchenko equation to show completeness relation of the eigenfunctions of linearized equation is unavailable. And the explicit expressions of Jost solutions are not necessary here. Thus a general method of direct perturbation method for the perturbed sine-Gordon equation is developed.     

新法制备铁氰化钴修饰玻碳电极及多巴胺的电催化氧化

新法制备铁氰化钴修饰玻碳电极及多巴胺的电催化氧化     

Theoretical Studies on Formation Mechanism of Resonance States for Na＋I2→Na^＋ ＋I2^－ System

An extended linear combination of arrangement channels-scattering wave-function(LCAC-SW) quantum scattering dynamic method combined with ab initio quantum chemical calculation was used to study the forma-tion mechanism of the resonance states for the collinear Na I2→Na^ I2^- I^2- ion-pair formation process on At-en-Lanting-Los potential energy surface. The resonance energy and the resonance width or the lifetime for the first resonance peak were calculated. The resonance can be identified as the Feshbach type and the physi-cal interpretation is given. The geometric structure of the resonance state for the title system has been opti-mized.     

Neutron Halos in the Excited States of Spherical Nuclei Near the β-Stable Line

The newly discovered neutron halos in the excited states of nuclei ¹²B, ¹³C, and ²⁰⁹Pb are studied by the relativistic mean-field theory. The calculated binding energies are very close to the experimental ones. The experimentally extracted root-mean-square radii of the last neutron with different occupations in nuclei are well reproduced by calculations. New candidates for the neutron halos in excited states are predicted and are useful for further search of neutron halos in the excited states of stable nuclei.     

Compton Back-Scattering γ-Ray Source Based on Synchrotron Radiation Facility (Ⅰ) Numerical Calculation of the Produced MeV γ-Ray

We propose a build to low-energy γ-ray beam line (SLEGS-Ⅰ) at the Shanghai Synchrotron Radiation Facility (SSRF). By Compton back scattering (BCS) of infrared or far-infrared laser lights from 3.5 GeV electrons circulating in the storage ring of SSRF, high intense quasi-monochromatic BCS γ-rays with high linear or circular polarization ranging 1-25MeV will be produced. It can be widely applied to fundamental researching fields of nuclear physics, nuclear astrophysics and related applications. In this paper, we briefly present the outline of BCS theory and the properties of BCS γ-ray with numerical compution based on the major parameters of SSRF storage ring.     

多层剪切型均匀偏心结构的弹塑性地震反应规律的研究

对多层剪切型的均匀偏心结构进行弹性地震反应分析,研究了基本平动周期、平扭频率比、偏心率、地震动强度、非偏心向地震动等对结构的弹塑性位移和构件延性反应的影响。研究表明:上述因素对结构的位移和延性反应有较大的影响,非偏心向的地震动对结构反应的影响受偏心向单元进入弹塑性程度的影响。     

关于不同分布两两NQD列的Jamison型加权乘积和的强稳定性

本文讨论了不同分布两两ＮＱＤ列的Ｊａｍｉｓｏｎ型加权乘积和的强稳定性及乘积和的Ｍａｒｃｉｎｋｉｅｗｉｃｚ型强大数律,推广并改进了Ｅｔｅｍａｄｉ［１］关于不同分布两两独立列部分和的工作及Ｍａｔｕｌａ［２］,王岳宝等［３］关于同分布两两ＮＱＤ列部分和的工作．     

静电陀螺监测器中静电陀螺仪的漂移误差模型

本推导了静电陀螺仪转子动量矩的运动方程,根据此方程并应用向量场理论,将造成静电陀螺漂移的外部干扰力矩划分为守恒力矩和非守恒力矩两部分。按照进动规律,最终得到静电陀螺监控器中陀螺仪漂移误差模型的全量形式。