体光源模拟标定法测O2(1Δ)绝对浓度

 O₂(¹Δ)绝对浓度的测量,一直是SOG和COIL研究中的重要参数之一。体光源模拟标定法测O₂(¹Δ)绝对浓度,是把发光气体以某一流速引入一已知体积的流动光池中,再通过具有低象差失真的光学系统,把该体光源成象在探测器的有效表面上。探测器和测量仪器组成的测量系统,要经过标准光源和电学标定。本方法可测出O₂(¹Δ绝对浓度和其分压,O₂(¹Δ)产率等参数。其中O₂(¹Δ)浓度测量结果的相对误差为20%。     

AdS5\otimes S1, AdS5\otimes S5和AdS2\otimes S2超弦模型的一种KRR参数化新方法

给出了3种典型超弦模型AdS₅\otimes S¹, AdS₅\otimes S⁵和AdS₂\otimes S²的一种简单的KRR参数化新方法, 并结合这些超弦模型所具有的κ对称性给出了它们的卡当1-form, Maurer-Cartan方程, 作用量和运动方程.     

“全同”超形变核转动带的量子群Uqp(u2)模型的理论分析

利用量子群U_qp(u₂)模型计算了^{191-192-193-194Hg}超形变(SD)带的γ跃迁能E_γ,运动学转动惯量J⁽¹⁾和动力学转动惯量J⁽²⁾,顺排角动量之差(i=ω(J⁽¹⁾(^{191-192-193-194}Hg)-J⁽¹⁾(¹⁹²Hg))),并与实验值进行比较得到了满意的结果,此外,还利用U_qp(u₂)模型的形变参量与核软度的关系式,计算出各SD带的核软度参数σ₁与唯象分析给出的组态结构进行了比较分析.     

转板式单重态氧发生器的实验研究

 实验研究了转板式O₂(¹Δ)发生器Cl₂利用率，O₂(¹Δ)产率依赖于其他工作参数变化的规律，并进行了综合分析，给出了发生器中Cl₂的最佳工作分压约为 2.13kPa.     

C(γ,η)X反应与N(1535)在核内的性质

在N^*(1535)共振模型下,研究了γ在原子核上产生η的反应,通过N衰变的实验数据以及γp→ηp反应确定了模型参数,结果表明,M_N*=1550MeV才较好地符合γp→ηp的实验,对¹²C上的η介子光生的总截面计算发现,N^*(1535)在核内的宽度由于多体修正而增大,N^*－核的相互作用具有排斥性质.     

列管型射流式O2(1Δ)发生器的COIL出光研究

 采用列管型射流式O₂(¹Δ)发生器在COIL装置上做了一系列出光实验,对该发生器的性能、参数及相关技术等做了实验研究。实验获得化学效率最高达22.2% 。     

Cs2 NaMF6(M=Al,Ga):Cr3+络合分子体系局域结构和基态分裂的理论研究

采用双自旋轨道耦合系数模型并结合完全能量矩阵的方法对Cs₂NaMF₆(M=Al, Ga):Cr³⁺ 体系中Cr³⁺ 离子的基态分裂和局域结构进行了研究.通过模拟光谱和EPR谱确定了Cr³⁺ 取代 M³⁺ 形成的两种占位结构的畸变角,发现用双自旋轨道耦合系数模型与单自旋轨道耦合系数模型计算出的畸变角Δθ存在较大的差异.这表     

量子群Uqp(u2)模型对A～190区超形变带研究

用双参数量子群U_qp(u₂)理论模型公式对A～190区47条超形变(SD)转动带进行了系统分析.计算得到的Eγ跃迁谱与实验较好地吻合;按转动带自旋指定的3种方案确定¹⁹⁴Hg(1),¹⁹⁴Pb(1)的带首自旋,结果与实验一致.此外,进一步讨论了核软度参数σ1的物理意义,发现一对旋称对偶带的σ1几乎全等.     

均匀液滴的形成机理及实验研究

 在均匀液滴O₂(¹Δ)发生器的研制过程中，发生器中液流受到外界扰动后，扰动沿着液流表面呈指数增长，最终导致液流破段成液滴。在液滴的形成过程中，各种参数的改变都将对液流的状态产生影响，最终影响O₂(¹Δ)发生器的总体性能。分别从理论和实验两部分对液滴的形成过程进行了对比分析:理论部分论述了液滴形成的理论依据及在发生器中，外界扰动频率、液流喷射流速的改变对扰动增长率的影响及影响趋势；实验部分以成像的方式着重分析了在相同条件下，分别改变扰动频率、液流喷射流速，液滴流的状态及趋势。实验结合理论，寻求可控参数范围，为均匀液滴发生器的液流研究提供依据。     

Cs2 23△1g态碰撞线归属和超精细结构解释

根据最新的Cs₂分子中间态A¹∑⁺_u -b³Πu全局解微扰获得的能级数据, 归属了通过微扰增强红外-红外光学双共振中间态A¹∑⁺_u 到上态2³△_1g的140条碰撞线, 包含之前实验观测到的221条2³△_1g←A¹∑⁺_u← X¹∑⁺_g 双共振跃迁[J. Chem. Phys. 128, 204313 (2008)], 重新计算了2³△_1g态的分子常数和势能曲线(排除54个微扰能级). 本次拟合得到的离心畸变常数和从经验公式计算得到的值相符合. 在亚多普勒激发光谱中,没有分辨出2³△_1g态的超精细结构. 对2³△_1g态的超精细结构进行初步计算,比较实验结果给出解释和说明.     

15顶角模型反射方程的常数解

得到了15顶角模型A2(1)模型和超对称t–J模型反射方程的非对角解,结果发现,A2(1)模型具有三种形式的非对角解,超对称t–J模型具有一种形式的非对角解,每种形式的非对角解均含有两个解,每个非对角解中均含有三个任意参数.关于对角解也得到了一些新的形式的解.     

A_(n-1)~((1))面模型反射方程的多参数解

利用面型因式化Ｌ算子,通过面模型反射方程的对角解,构造了一个含有ｎ＋１个任意参数的非对角解．     

Applications of Extended Mapping Deformation Method in Two (3+1)-Dimensional Nonlinear Models

Based on the extended mapping deformation method and symbolic computation, many exact travelling wave solutions are found for the (3+1)-dimensional JM equation and the (3+1)-dimensional KP equation. The obtained solutions include solitary solution, periodic wave solution, rational travelling wave solution, and Jacobian and Weierstrass function solution, etc.     

19顶角模型反射方程的常数解

通过直接解反射方程,给出了19顶角模型A2(2)模型反射方程的所有矩阵元非零形式以及其它几种非对角形式的常数解.     

The Soliton Solution of （3＋1）—Dimensional Kadomtsev—Petviashvili Equations

A simple algebraic transformation relation of a special type of solution between the (3 1)-dimensional Kadomtsev-petviashvili(KP) equation and the cubic nonlinear Klein-Gordon equation (NKG) is established.Using known solutions of the NKG equation,we can obtain many soliton solutions and periodic solution of the (3 1)-dimensional KP equation.     

Variable Separation Solutions in (1+1)-Dimensional and (3+1)-Dimensional Systems via Entangled Mapping Approach

In this paper, the entangled mapping approach (EMA) is applied to obtain variable separation solutions of (1 1)-dimensional and (3 1)-dimensional systems. By analysis, we firstly find that there also exists a common formula to describe suitable physical fields or potentials for these (1 1)-dimensional models such as coupled integrable dispersionless (CID) and shallow water wave equations. Moreover, we find that the variable separation solution of the (3 1)-dimensional Burgers system satisfies the completely same form as the universal quantity U1 in (2 1 )-dimensional systems. The only difference is that the function q is a solution of a constraint equation and p is an arbitrary function of three independent variables.     

Variable Separation Solution for （1＋1）-Dimensional Nonlinear Models Related to Schroedinger Equation

A variable separation approach is proposed and successfully extended to the (1 1)-dimensional physics models. The new exact solution of (1 1)-dimensional nonlinear models related to Schr6dinger equation by the entrance of three arbitrary functions is obtained. Some special types of soliton wave solutions such as multi-soliton wave solution,non-stable soliton solution, oscillating soliton solution, and periodic soliton solutions are discussed by selecting the arbitrary functions appropriately.     

j－j耦合中J（J＝1）校正项

此文以第四族元素第一激发态（ｎｐ）￣１［（ｎ＋１）ｓ］￣１为例，在（ＪＭ＿Ｊ）表象中，建立新的单组态谱项能量表达式，添加ａ（Ｊ＋１）校正项后，显著地改善谱项理论值与实验值拟合程度。     

Multiple exp-function method for soliton solutions of nonlinear evolution equations

We applied the multiple exp-function scheme to the(2+1)-dimensional Sawada-Kotera(SK) equation and(3+1)-dimensional nonlinear evolution equation and analytic particular solutions have been deduced. The analytic particular solutions contain one-soliton, two-soliton, and three-soliton type solutions. With the assistance of Maple, we demonstrated the efficiency and advantages of the procedure that generalizes Hirota's perturbation scheme. The obtained solutions can be used as a benchmark for numerical solutions and describe the physical phenomena behind the model.     

New Symmetry Reductions,Dromions—Like and Compacton Solutions for a 2D BS（m,n） Equations Hierarchy with Fully Nonlinear Dispersion

We have found two types of important exact solutions,compacton solutions,which are solitary waves with the property that after colliding with their own kind,they re-emerge with the same coherent shape very much as the solitons do during a completely elastic interaction,in the (1 1)D,(1 2)D and even (1 3)D models,and dromion solutions (exponentially decaying solutions in all direction) in many (1 2)D and (1 3)D models.In this paper,symmetry reductions in (1 2)D are considered for the break soliton-type equation with fully nonlinear dispersion (called BS(m,n) equation)ut b(u^m)xxy 4b(u^n δx^-1uy)x=0,which is a generalized model of (1 2)D break soliton equation ut buxxy 4buuy 4buxδx^-1uy=0,by using the extended direct reduction method.As a result,six types of symmetry reductions are obtained.Starting from the reduction equations and some simple transformations,we obtain the solitary wavke solutions of BS(1,n) equations,compacton solutions of BS(m,m-1) equations and the compacton-like solution of the potential form (called PBS(3,2)) ωxt b(ux^m)xxy 4b(ωx^nωy)x=0.In addition,we show that the variable ∫^x uy dx admits dromion solutions rather than the field u itself in BS(1,n) equation.