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Communications in Theoretical Physics 2014年第3期61卷 315-321页

作者： LIAOYue-Ming ZHOU Ping qin Xing-Chen HE Yan-He qin jian-sheng School of Science Guangxi University for Nationalities Nanning 530006 China Guangxi Key Laboratory of Hybrid Computational and IC Design Analysis Nanning 530006 China

We present a scheme for symmetric controlled remote preparation of an arbitrary 2-qudit state form a sender to either of the two receivers via positive operator-valued measurement and pure entangled two-particle states. The first sender transforms the quantum channel shared by all the agents via POVM according to her knowledge of prepared state. All the senders perform singIe- or two-particle projective measurements on their entangled particles and the receiver can probabilisticaly reconstruct the original state on her entangled particles via unitary transformation and auxiliary qubit. The scheme is optimal as the probability which the receiver prepares the original state equals to the entanglement of the quantum channel. Moreover, it is more convenience in application than others as it requires only two-particle entanglements for preparing an arbitrary two-qudit state.

关键词： controlled remote state preparation positive operator-valued measure two-particle entanglements

Clinical significance of multislice spiral CT scans in hepatic veins occlusion in Budd-Chiari syndrome

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Chinese Medical Journal 2007年第2期120卷 100-105页

作者： MENG Xiao-chun ZHU Kang-shun qin Jie ZHANG jian-sheng WANG Xiao-hong ZOU Yan ZHANG Ya-qin SHAN Hong Department of Radiology Third Affiliated Hospital Sun Yat-sen University Guangzhou 510630 China

Background Budd-Chiari syndrome with hepatic vein occlusion （HVBCS） can induce severe portal hypertension and liver damage. We retrospectively analyzed hepatic CT features of HVBCS and evaluated the usefulness of triphasic enhancement of CT examinations and CT angiography （CTA） in its diagnosis. Methods Twenty-five cases with HVBCS, confirmed by digital subtraction angiography （DSA）, received a triphasic enhancement CT scan within one week before DSA. The CTA images of the relevant blood vessels were reconstructed with maximum intensity projection, volume rendering and oblique reformat techniques. Results Compared with DSA, the detection rate of transverse CT and CTA images for abnormal hepatic vein were 81.7% （58/71） and 95.8% （68/71）（X^2=7.044, P=-0.008）, for membranous obstruction were 47.4% （9/19） and 84.2% （16/19） respectively （X^2 =5.729, P=-0.017 ）, for segmental obstruction were 88.0% （22/25） and 100% （25/25） respectively （X^2=1.418, P=-0.234）. The detection rates for hepatic vein stenosis were 100% with each method. Diffuse hepatomegaly was found in all 6 cases in acute phase and 3 of 19 cases in chronic phase who had severe obstruction of three hepatic veins without patent intrahepatic collaterals. The other 16 cases in chronic phase had hepatatrophia to different extents related to the obstructed hepatic vein. All in acute phase and 15 in chronic phase presented typical patchy enhancement initially in caudate lobe and perihilar areas and enlarged with time delay. In all cases, parenchyma areas with atrophy, necrosis and congestion demonstrated lower and later enhancement. In all the parts, which had normal enhancement at least one patent outflow hepatic vein, accessory hepatic vein or collateral vessel was detected.Conclusion Dynamic enhancement CT examination by multislice spiral CT not only could improve the diagnosis of HVBCS by CTA technique, but also could noninvasively provide anatomical information and reveal damage to the hepatic parenchyma

关键词： Budd-Chiari syndrome hepatic veno-occlusion disease tomography, X-ray computed angiography

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计算机在配煤设备系统中的应用改进

煤矿机械 2013年第9期34卷 250-251页

作者：秦建生重庆工业职业技术学院重庆401120

煤炭行业的长期发展离不开煤炭开采技术的保障,采煤的效率又正是开采技术创收的基础,因各种自然因素限制,我国开采煤炭的行业水平一直较为落后,随着科学技术的发展,计算机技术已经应用到煤炭行业,研究了计算机在配煤设备系统中的应用及... 详细信息

煤炭行业的长期发展离不开煤炭开采技术的保障,采煤的效率又正是开采技术创收的基础,因各种自然因素限制,我国开采煤炭的行业水平一直较为落后,随着科学技术的发展,计算机技术已经应用到煤炭行业,研究了计算机在配煤设备系统中的应用及改进问题。

关键词：计算机控制系统配煤一体化操作设备

A Classification of 45 Maize Inbred Lines Used in China with RFLP Markers

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Agricultural Sciences in China 2002年第2期1卷 143-148页

作者： HUANG Yi-qin and LI jian-sheng( National Key Lab of Crop Genetic Improvement, Huazhong Agricultural University , Wuhan 430070 National Maize Improvement Center of China , China Agricultural University, Beijing 100094) National Key Lab of Crop Genetic Improvement Huazhong Agricultural University Wuhan 430070 National Key Lab of Crop Genetic Improvement Huazhong Agricultural University Wuhan 430070 National Maize Improvement Center of China China Agricultural University Beijing 100094

The classification of heterotic groups is essential to maize breeding because knowledge of heterotic groups could be interest to both the combination of outstanding hybrids and the improvement of elite inbred lines. RFLP has provided a powerful tool to assign maize inbred lines into heterotic groups. In this investigation, 45 inbred lines, used widely in south and southwest China, were chosen for RFLP analysis, among which 4 lines came from American, representing different heterotic groups in U.S. corn belt. 54 RFLP core markers covering 10 chromosomes of maize were used. A total DNA of each sample was digested with EcoR I, BamH I and Hind 1. The procedure of RFLP was employed as described by a manual from maize RFLP lab at University of Missouri, Columbia. A total of 860 bands were detected among 45 inbred lines based on RFLP analysis, which were involved in 212 loci. Alleles at each locus ranged from 2 to 9 with an average of 4.06. In total, The 45 inbred lines were classified into 6 heterotic groups according to RFLP data with Ward's method. 3 heterotic groups, including Mol7, B73 and Oh43 respectively, seemed to be the same to U. S. heterotic groups. 21 inbred lines, most of which derived from Chinese local germplasm, were classified together into two heterotic groups, indicating domistic germplasm was different from U. S. germplasm at the molecular level and played an important role in maize hybrid production in China. Two inbred lines from tropic germplasm were assigned in the same group. These results provided useful information for our understanding maize heterotic groups and heterotic patterns in China.

关键词： Maize germplasm RFLP marker Heterotic groups

乙型肝炎患者治疗前后外周血CD4^+CD25^+Tregs TCR CDR3谱系漂移特征分析

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中国免疫学杂志 2017年第6期33卷 889-894,899页

作者：潘宗琴吕红庄勤建姚新生邱隆敏遵义医学院附属医院感染科遵义563003 遵义医学院免疫学教研室遵义563003

目的:探讨AHB患者急性期及恢复期、CHB患者恩替卡韦治疗前后外周血PBMC中CD4^+CD25^+Tregs TCR CDR3谱系漂移特征的变化。方法:采集4例正常人、3例AHB患者(急性期和恢复期)及4例CHB患者恩替卡韦治疗前后外周抗凝静脉血,分离外周血PBMC;... 详细信息

目的:探讨AHB患者急性期及恢复期、CHB患者恩替卡韦治疗前后外周血PBMC中CD4^+CD25^+Tregs TCR CDR3谱系漂移特征的变化。方法:采集4例正常人、3例AHB患者(急性期和恢复期)及4例CHB患者恩替卡韦治疗前后外周抗凝静脉血,分离外周血PBMC;磁珠分选法分选CD4^+CD25^+Tregs,提取总RNA,逆转录合成c DNA;根据TCRβ链24个可变区基因(TRBV)家族设计相应的上游引物,并在β链恒定区(BC)设计一条共用的FAM荧光标记下游引物及对照引物。PCR扩增出24个包含完整CDR3区的TRBV家族的PCR产物,电泳鉴定目的片段;PCR产物送上海基康用毛细管电泳法进行基因扫描;用Peak Scanner Software v1.0软件分析研究对象TRBV家族CDR3谱系特征;采用配对t检验(paired-sample t test)检测AHB患者急性期及恢复期、CHB患者恩替卡韦治疗前后TRBV家族谱系漂移率差异。结果:3例AHB患者急性期呈现普遍谱系漂移的TRBV4、10、14、16、19家族在恢复期多转变为正态的多峰谱型,AHB患者恢复期外周血CD4^+CD25^+Tregs TRBV家族CDR3谱型漂移率显著低于急性期(t=9.456,P=0.011);TRBV8、11、13.2、15、16、18、20在3例CHB患者抗HBV治疗前出现克隆增生,TRBV1、5.2、6、12、14、24在3例CHB患者抗HBV治疗后出现克隆增生。CHB患者抗病毒治疗后TRBV家族CDR3谱型漂移率高于治疗前(t=-0.666,P=0.553)。结论:AHB患者急性期呈现谱系漂移的TRBV4、10、14、16、19家族在恢复期多转变为正态的多峰谱型,推测这种转变可能与HBsAg、HBeAg转阴相关。CHB患者在治疗前TRBV8、11、13.2、15、16、18、20家族克隆增生的Tregs可能通过下调机体的细胞免疫应答,阻碍病毒清除;随着药物导致病毒载量的显著下降,TRBV1、5.2、6、12、14、24家族克隆增生的Tregs可能更有助于诱导机体出现免疫耐受,导致HBV不能彻底清除。

关键词：慢性乙型肝炎急性乙型肝炎 T淋巴细胞受体互补决定区3 调节性T细胞恩替卡韦

Stable copper boron–imidazolate cage as Cu-riched enzyme for highly efficient electrocatalytic CO2 reduction to ethylene

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Science China Chemistry 2025年

作者： Jun-Qiang Chen Qiao-Hong Li qin-Long Hong Ping Shao Hai-Xia Zhang jian Zhang State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences

Single-atom catalyst has garnered widespread attention to mimic mature enzymes due to its well-defined atomic structure and coordination environments. However, since the carbon–carbon（C–C） coupling reactions require synergistic catalysis of multiple sites, single-atom catalysts suffer from insufficient active sites and unclear reaction mechanisms. Controlling the reaction intermediates in a precisely targeted pocket through careful metal–organic cage design is therefore crucial. Here, we prepare a tetrahedral [Cu6L4]-type boron–imidazolate cage integrating highly active Cu sites and optimized cavity, which exhibits enzyme like specific catalytic performance in electrochemical CO2reduction reaction（CO2RR） to enhance the selectivity of *** analyses and computational calculations suggest that the single Cu site together with neighboring boron–imidazolate ligands provides suitably synergistic effects that enable the energetically favorable formation of an *COCHO intermediate, a key step determining selectivity. As a result, the [Cu6L4]-type cage of BIC-145 achieves a Faradaic efficiency of 28% for C2H4maintaining an average current density of -3.54 mA cm-2over a 5-hour electrolysis period. This work represents the first example for studying single-metal site catalysts with ultra-low coordination numbers through the rational design of metal–organic cages.

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光子晶体光纤的Galerkin算法

中国激光 2004年第5期31卷 604-608页

作者：王智任国斌娄淑琴简水生北京交通大学电子信息工程学院现代通信网实验中心北京100044 北京交通大学光波技术研究所北京100044

光子晶体光纤 (PCF)是由石英和空气孔构成的二维周期性介电常数分布的微结构光纤 ,人们已经提出了一些理论方法用于其模式特征的研究。以全反射光子晶体光纤为例 ,将其折射率结构分解为一个纯粹的中心缺陷结构和一个完美二维光子晶体的... 详细信息

光子晶体光纤 (PCF)是由石英和空气孔构成的二维周期性介电常数分布的微结构光纤 ,人们已经提出了一些理论方法用于其模式特征的研究。以全反射光子晶体光纤为例 ,将其折射率结构分解为一个纯粹的中心缺陷结构和一个完美二维光子晶体的叠加 ,并分别选取厄米高斯函数和余弦函数对其周期性折射率展开 ;同时将横向电场分布的x ,y分量用正交归一化厄米高斯 (Hermite Gauss)函数展开。从电磁场的波动方程出发 ,忽略横向电场之间的耦合 ,根据折射率和电场的展开式 ,得到关于各展开系数的矩阵和模式的特征方程。特征方程中涉及的各矩阵元素都可以利用厄米高斯函数的正交归一化性质及其他一些恒等式解析求得。求解该特征方程 ,可得到光子晶体光纤的传播常数和模场分布。利用此算法 ,可以进一步研究光子晶体光纤的模式特性、色散特性。

关键词：光电子学光子晶体光纤 Galerkin算法厄米-高斯函数

Stepwise assembly to construct stable copper(I) cluster-based circularly polarized luminescent MOFs

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Science China Chemistry 2025年

作者： Jing-Wen Xie Meng-Ting Wang Yan Jin Si Li jian-Hua qin Shuang-Quan Zang Tomas C.W.Mak College of Chemistry Henan Key Laboratory of Crystalline Molecular Functional Materials Zhengzhou University College of Chemistry and Chemical Engineering Luoyang Normal University Department of Chemistry The Chinese University of Hong Kong

Circularly polarized luminescence （CPL） materials have been extensively studied in recent years owing to their widespread applications in 3D display,optical storage,optical anti-counterfeiting,and biological imaging,***（I） clusters have emerged as a promising candidate for CPL materials,driven by their cost-effectiveness,superior luminescent properties,precise structure,and low ***,the poor environmental stability of copper（I） clusters renders their synthesis and preservation challenging,thereby significantly impeding their ***,we have designed and synthesised a chiral double-coordinated ligand in order to construct copper（I） cluster nodes that can be further *** anticipated,by utilizing stepwise assembly strategy,a Cu4cluster node co-modified by chiral alkynyl ligands and triphenylphosphine was further assembled with Cd2+ions to obtain 2D layers structure,L/*** L/D-Cu4-Cd exhibits excellent stability and optical properties,including bright yellow emission,solvent-responsive luminescence,and CPL activity with a maximum glumup to 2.0×10-3,which shows potential applications in the WLED and *** interestingly,the material also exhibits deflection ability towards different wavelengths of linearly polarized light,showing certain potential in the preparation of circular polarizer.

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Hand-Assisted Laparoscopy versus Open Total Colectomy for Slow Transit Constipation:A Retrospective Study

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Hand-Assisted Laparoscopy versus Open Total Colectomy for Sl...

氯胺酮麻醉前不同时间肌内注射阿托品对小儿呼吸道的影响

2013年浙江省肛肠外科学术年会暨结直肠疾病的微创及综...

作者： qin Song sheng,jian jiang LIN,Wen Bin CHEN,Fan Long LIU,Feng Ye,Xiang Ming XU,Han Ju HUA,Cai Zhao LIN,Jin Hai WANG Department of Colorectal and Anal Surgery,The first affiliated hospital of college of Medicine, Zhejiang University,Zhejiang 310003,China

Objective:To compare the short-term effects of hand-assisted laparoscopic colectomy(HALC) with that of open colectomy(OC) in patients with slow transit constipation(STC). Methods:Patients with STC who underwent total colectomy between January 2008 and December 2012 were retrospectively enrolled into the study after a careful clinical evaluation and exclusion of secondary causes and divided into HALC and OC *** including demographics,intraoperative and postoperative data on recovery and complications were compared between the two groups. Results:A total of 68 patients with STC were included with 32 in HALC and 36 in OC *** two groups had no significance difference on demographics(P>0.05).Compared with OC group,patients in the HALC group had shorter incision(6.1±0.3cm vs.20.1±2.8cm,P0.05). Conclusion:From short-term results of the study,HALC is a safe,minimally invasive,and effective surgical alternative for treating STC compared with OC.

关键词： hand-assisted laparoscopic colectomy open colectomy slow transit constipation surgery

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医学综述 2015年第1期21卷 175-176页

作者：秦建生陈中梅胡丽敏廊坊市第四人民医院麻醉科河北廊坊065700

目的探讨氯胺酮麻醉前不同时间肌内注射阿托品对小儿呼吸道的影响.方法将2012年1月至2013年6月在廊坊市第四人民医院住院的100例患儿按随机数字表法分为两组：A组（50例）于氯胺酮麻醉前30～ 60 min肌内注射阿托品（0.02 mg/kg）,B组... 详细信息

目的探讨氯胺酮麻醉前不同时间肌内注射阿托品对小儿呼吸道的影响.方法将2012年1月至2013年6月在廊坊市第四人民医院住院的100例患儿按随机数字表法分为两组：A组（50例）于氯胺酮麻醉前30～ 60 min肌内注射阿托品（0.02 mg/kg）,B组（50例）阿托品（0.02 mg/kg）与氯胺酮同时间肌内注射.两组患儿均于氯胺酮肌内注射2 ～4 min后入室准备手术,术中观察记录两组患儿呼吸道和肺部的听诊变化及脉搏血氧饱和度（SpO2）变化.结果 A组I级（即呼吸道未受影响）44例,Ⅱ级以上（即呼吸道受到不同程度影响）6例,阳性率为12％（6/50）;B组Ⅰ级33例,Ⅱ级以上17例,阳性率为34％（17/50）.两组患儿呼吸道受影响程度的比较,差异有统计学意义（P＜0.01）.结论小儿氯胺酮麻醉前30 min肌内注射阿托品,能有效降低氯胺酮对患儿呼吸道的影响,提高术中患儿的安全系数.

关键词：小儿氯胺酮阿托品呼吸道脉搏氧饱和度