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Mutual Neutralization of Na^(+)/O^(-) Ions in Slow Collisions

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Chinese Physics Letters 1996年第2期13卷 93-96页

作者： zhou xiao-xin DONG Chen-zhong Department of Physics Northwest Normal UniversityLanzhou 730070

The mutual neutralization cross sections of Na^(+)/O^(-) ions at low energy have been calculated by using the multichannel LandaZener *** asymptotic method is used for estimating tBe coupling matrix elements between tbe ionic and covalent states at the crossing points of diabatic potential *** results of calculation are compared with available experimental data.

关键词： theory. mutual asymptotic

Positions and Widths of Anticrossings for Potassium Rydberg Stark States

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Communications in Theoretical Physics 2007年第1期47卷 119-126页

作者： JIN Cheng zhou xiao-xin ZHAO Song-Feng College of Physics and Electronic Engineering Northwest Normal University Lanzhou 730070 China Center of Theoretical Nuclear Physics National Laboratory of Heavy Ion Accelerator of Lanzhou Lanzhou 730000 China

The B-spline expansion technique is applied to study the anticrossings for potassium Rydberg states in a static electric field. The results of our calculation indicate that the antierossings are caused mainly by the core interaction or by the fine structure interaction. Our results for the positions and the widths of the anticrossings are in good agreement with experimental data.

关键词： B-splines model potential anticrossing Rydberg atom Stark state

Study of Microwave Multiphoton Transition of Rydberg Potassium Atom by Using B-Spline

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Communications in Theoretical Physics 2005年第6X期44卷 1065-1070页

Abstract The B-spline expansion technique and time-dependent two-level approach are applied to study the interaction between the microwave field and potassium atoms in a static electric field. We obtain theoretical multiphoton resonance spectra that can be compared with the experimental data. We also obtain the time evolution of the final state in different microwave fields.

关键词： B-spline multiphoton resonance spectra potential model Rabi oscillation

Design and engineering implementation of non-supplementary fired compressed air energy storage system: TICC-500

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Science China(Technological Sciences) 2015年第4期58卷 600-611页

作者： MEI Sheng Wei WANG Jun Jie TIAN Fang CHEN Lai Jun XUE xiao Dai LU Qiang zhou Yuan zhou xiao xin State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment Department of Electrical EngineeringTsinghua University Key Laboratory of Cryogenics Technical Institute of Physics and Chemistry Chinese Academy of Sciences Department of Power Systems China Electric Power Research Institute

The integration and accommodation of the wind and solar energy pose great challenges on today’s power system operation due to the intermittent nature and volatility of the wind and solar *** efficient large-scale electrical energy storage is one of the most effective and economical solutions to those *** the comprehensive review of the existing storage technologies,this paper proposes an overall design scheme for the Non-supplementary Fired Compressed Air Energy Storage(NFCAES)system,including system design,modeling and efficiency assessment,as well as protection and ***,the design principles of the multistage regenerative,*** recovery system which is used to fully recycle and utilize the waste heat from compression are provided,so as the overall system efficiency evaluation *** paper theoretically ascertains the storage decoupling rules in the potential and internal energy of molecular compressed air and reveals the conversion mechanism of gas,heat,power,electricity and other forms of *** this basis,a 500-k W physical simulation system of CAES system(TICC-500,Tsinghua-IPCCAS-CEPRI-CAES)is built,which passed a system-wide 420-k W load power generation test with less pollution and zero carbon ***,the multi-form energy conversion of multi-stage regenerative CAES and storage efficiency is verified,especially its incomparable superiority in solving the uncertainty problem in wind and solar power ***,the propaganda and application scenario of the CAES system in China is introduced.

关键词： index terms-compressed air energy storage non-supplementary fired regenerative/heat recovery multi-stage expansion TICC-500

Interference Effect of Direct Photodetachment for H− Ions in a Short Laser Pulse

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Chinese Physics Letters 2012年第9期29卷 49-52页

作者： CHEN Jian-Hong ZHAO Song-Feng LI xiao-Yong zhou xiao-xin College of Physics and Electronic Engineering and Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu ProvinceNorthwest Normal UniversityLanzhou 730070 Department of Physics Lanzhou City UniversityLanzhou 730070

The electron detachment of negative hydrogen ions exposed to a few-cycle linearly polarized laser pulse is investigated in the context of the strong field approximation evaluated by the saddle-point *** results show that the angular distributions of the laser-induced photoelectron obtained by the saddle-point method are in good agreement with both the experimental results and the numerical-integration *** importantly,we show that the unusual maximum in the angular distributions of photoelectrons for negative hydrogen ions can be explained by the quantum interference effect based on the saddle-point method.

关键词： photoelectron saddle Pulse

Destructive and Constructive Interference of High-Order Harmonic Generation in Mixture of He and Ne Gases

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Chinese Physics Letters 2010年第3期27卷 120-123页

作者：金成周效信赵松峰 College of Physics and Electronic Engineering Northwest Normal University Lanzhou 730070

Using the single-atom induced dipole moment under strong field approximation as a source, we suggest a model to simulate the macroscopic high-order harmonic generation （HHG） from the mixed gases （He and Ne） interacting with intense infrared laser by solving the three-dimensional Maxwell＇s equation of the harmonic field. Regular destructive interference （DI） and constructive interference （CI） are observed in the macroscopic HHG spectra when the gas jet is put at a good phase-matching position. A semiclassical model of short and long electron trajectories is applied to interpret the DI and CI of HHG qualitatively.

关键词： Atomic and molecular physics Optics quantum optics and lasers

离子色谱法测定尿中硝酸盐、硫氰酸盐和高氯酸盐的方法研究

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化学工程师 2024年第9期38卷 26-30页

作者：朱慧敏孟元华龚燕王昱尘周小新无锡市疾病预防控制中心(南京医科大学附属无锡市疾病预防控制中心) 江苏无锡214023 南京医科大学公共卫生学院江苏南京211166

建立离子色谱测定尿中的硝酸盐、硫氰酸盐和高氯酸盐的方法。采用超纯水稀释尿样,RP前处理小柱去除尿中的干扰离子,以AS20阴离子交换柱为分析柱,KOH淋洗液梯度洗脱,电导检测器进行检测。离子色谱法测定尿中硝酸盐、硫氰酸盐和高氯酸盐可... 详细信息

建立离子色谱测定尿中的硝酸盐、硫氰酸盐和高氯酸盐的方法。采用超纯水稀释尿样,RP前处理小柱去除尿中的干扰离子,以AS20阴离子交换柱为分析柱,KOH淋洗液梯度洗脱,电导检测器进行检测。离子色谱法测定尿中硝酸盐、硫氰酸盐和高氯酸盐可在35min内实现基线分离,检出限分别为5.5μg·L^(-1)、2.8μg·L^(-1)和4.0μg·L^(-1);3种物质在线性范围内相关系数(r)均大于0.999;相对标准偏差为0.17%~6.28%;加标回收率为86.1%~107.7%。本实验建立的方法操作简便、准确、灵敏度高,可适用于同时检测尿中硝酸盐、硫氰酸盐和高氯酸盐。

关键词：离子色谱法尿硝酸盐硫氰酸盐高氯酸盐

Identification of hub genes associated with Helicobacter pylori infection and type 2 diabetes mellitus:A pilot bioinformatics study

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World Journal of Diabetes 2024年第2期15卷 170-185页

作者： Han Chen Guo-xin Zhang xiao-Ying zhou Department of Gastroenterology The First Affiliated Hospital of Nanjing Medical UniversityNanjing 210003Jiangsu ProvinceChina Department of Gastroenterology Jiangsu Province HospitalNanjing 210029Jiangsu ProvinceChina

BACKGROUND Helicobacter pylori(***)infection is related to various extragastric diseases including type 2 diabetes mellitus(T2DM).However,the possible mechanisms connecting *** infection and T2DM remain *** To explore potential molecular connections between *** infection and *** We extracted gene expression arrays from three online datasets(GSE60427,GSE27411 and GSE115601).Differentially expressed genes(DEGs)commonly present in patients with *** infection and T2DM were *** genes were validated using human gastric biopsy *** between hub genes and immune cell infiltration,miRNAs,and transcription factors(TFs)were further *** A total of 67 DEGs were commonly presented in patients with *** infection and *** significantly upregulated hub genes,including TLR4,ITGAM,C5AR1,FCER1G,and FCGR2A,were finally identified,all of which are closely related to immune cell *** gene-miRNA analysis detected 13 miRNAs with at least two gene ***-gene interaction networks showed that TLR4 was coregulated by 26 TFs,the largest number of TFs among the 5 hub *** We identified five hub genes that may have molecular connections between *** infection and *** study provides new insights into the pathogenesis of ***-induced onset of T2DM.

关键词： Helicobacter pylori Type 2 diabetes mellitus Bioinformatics analysis Differentially expressed genes Hub genes

Dissolution kinetics and reaction mechanism of Al_(2)O_(3) in molten CaF_(2)-CaO-Al_(2)O_(3) slag

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Journal of Iron and Steel Research International 2024年第4期31卷 861-869页

作者： Yao-xin Du Yan-wu Dong zhou-hua Jiang Ganna Stovpchenko Yu-shuo Li Jun Huang xin-wei Wang Yu-xiao Liu School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina Key Laboratory of Ecological Metallurgy of Multimetallic Mineral Northeastern UniversityShenyang 110819LiaoningChina State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819LiaoningChina E.O.Paton Electric Welding Institute of the National Academy of Science of Ukraine Kiev 03115Ukraine

The dissolution behavior of Al_(2)O_(3) in molten CaF_(2)-CaO-Al_(2)O_(3) slag,a basic slag system of electroslag remelting process,was investigated by rotating cylinder method using corundum rods to simulate Al_(2)O_(3) inclusions in *** experimental results show that the dissolution rate of Al_(2)O_(3);rods in CaF_(2)-CaO-Al_(2)O_(3) slag increases with the increase in rotating speed and temperature,and the rate-controlling step is the mass transfer in the *** dissolution rate of Al_(2)O,in CaF_(2)-CaO-Al_(2)O_(3) slag increases with the increase in the ratio of CaO to Al_(2)O_(3),which is due to the increase in dissolution driving force and the decrease in slag *** apparent activation energy of the mass transfer of AlOs in slag C is calculated to be 222.86 kJ mol^(-1).During the dissolution of Al_(2)0,inclusions in the slag,it reacts with F in liquid slag at first,then reacts with CaO to form the intermediate compounds of xCaO-yAl_(2)O_(3) system,and finally dissolves in molten *** dissolution rate of Al_(2)O_(3) inclusions in CaF_(2)-CaO-Al_(2)O_(3) slag for electroslag remelting is positively correlated with the ratio of the dissolution driving force and slag viscosity,and the correlation coeficient is 2.487×10^(-11).

关键词： Inclusion Electroslag remelting Mass transfer:Dissolution rate-Dissolution driving force