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Journal of Integrative Plant Biology 2009年第1期51卷 107-112页

作者： Yan Hu Wang-zhen guo Tian-zhen Zhang National Key Laboratory of Crop Genetics & Germplasm Enhancement Cotton Research Institute Nanjing Agricultural University Nanjing 210095 China

A bacterial artificial chromosome （BAC） library was constructed for Gossypium hirsutum acc. TM-1, a genetic and genomic standard line for Upland cotton. The library consists of 147 456 clones with an average insert size of 122.8 kb ranging from 97 to 240 kb. About 96.0% of the clones have inserts over 100 kb. Therefore, this library represents theoretically 7.4 haploid genome equivalents based on an AD genome size of 2 425 Mb. Clones were stored in 384 384- well plates and arrayed into multiplex pools for rapid and reliable library screening. BAC screening was carried out by four-round poiymerase chain reactions using 23 simple sequence repeats （SSR） markers, three sequence-related amplified polymorphism markers and one pair of primers for a gene associated with fiber development to test the quality of the library. Correspondingly, in total 92 positive BAC clones were identified with an average four positive clones per SSR marker, ranging from one to eight hits. Additionally, since these SSR markers have been localized to chromosome 12 （A12） and 26 （D12） according to the genetic map, these BAC clones are expected to serve as seeds for the physical mapping of these two homologous chromosomes, sequentially map-based cloning of quantitative trait loci or genes associated with important agronomic traits.

关键词： bacterial artificial chromosome library polymerase chain reaction screening simple sequence repeats markers TM-1 upland cotton.

Quantitative Trait Loci Mapping of Leaf Morphological Traits and Chlorophyll Content in Cultivated Tetraploid Cotton

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Journal of Integrative Plant Biology 2005年第11期47卷 1382-1390页

作者： Xian-Liang SONG Wang-zhen guo Zhi-guo HAN Tian-zhen ZHANG State Key Laboratory of Crop Genetics and Germplasm Enhancement Cotton Research Institute Nanjing Agricultural University Nanjing 210095 China Shandong Agricultural University College of Agronomy Taian 271018 China

Genetic mapping provides a powerful tool for quantitative trait loci （QTL） analysis at the molecular level. A simple sequence repeat （SSR） genetic map containing 590 markers and a BCI population from two cultivated tetraploid cotton （Gossypium hirsutum L.） cultivars, namely TM-1 and Hai 7124 （G. barbadense L.）, were used to map and analyze QTL using the composite interval mapping （CIM） method. Thirty one QTLs, 10 for lobe length, 13 for lobe width, six for lobe angle, and two for leaf chlorophyll content, were detected on 15 chromosomes or linkage groups at logarithm of odds （LOD）≥2.0, of which 15 were found for leaf morphology at LOD≥3.0. The genetic effects of the QTL were estimated. These results are fundamental for marker-assisted selection （MAS） of these traits in tetraploid cotton breeding.

关键词： chlorophyll cotton leaf morphology quantitative trait locus mapping simple sequencerepeat.

New thermoelectric semiconductors Pb_(5)Sb_(12+x)Bi_(6-x)Se_(32) with ultralow thermal conductivity

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Chinese Journal of Structural Chemistry 2024年第3期43卷 33-40页

作者： Ruizhi Yang Xia Li Weiping guo Zixuan Chen Hongwei Ming Zhong-zhen luo Zhigang Zou Key Laboratory of Advanced Materials Technologies International(Hong KongMacao and Taiwan)Joint Laboratory on Advanced Materials TechnologiesCollege of Materials Science and EngineeringFuzhou UniversityFuzhou350108China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou350108China State Key Laboratory of Photocatalysis on Energy and Environment Fuzhou UniversityFuzhou350116China Eco-materials and Renewable Energy Research Center College of Engineering and Applied SciencesNanjing UniversityNanjing210093China National Laboratory of Solid State Microstructures Nanjing UniversityNanjing210093China

Five new semiconductors Pb_(5)Sb_(12+x)Bi_(6-x)Se_(32)(x=0,1,2,3,and 4)have been synthesized for the first time,which adopt pavonite-type structure and crystallize in monoclinic C2/m space *** crystal structure is composed of two different types of polyhedral ***-I is a galena-like structure motif that forms with[MSe_(6)](M=Pb,Sb,and Bi)octahedra and slab-Ⅱcontains one octahedral[MSe_(6)]block and paired squared pyramids[MSe_(5)].Pb_(5)Sb_(12+x)Bi_(6-x)Se_(32)exhibits n-type semiconductor behaviors and the remarkable Seebeck coefficient from-64.1μV K^(-1)for x=0 sample to-242μV K^(-1)forx=4 sample at 300 ***,the Pb_(5)Sb_(12)Bi_(6)Se_(32)has the highest carrier concentration of 1.35×10^(20)cm^(-3)in pavonite-type *** complex compositions,mixed occupancies of the cations,and quasi-two-dimensional structure lead to the low lattice thermal conduc-tivity(κ_(lat))less than 0.48 W m^(-1)K^(-1)from 300 to 723 K,at which Pb_(5)Sb_(16)Bi_(2)Se_(32)especially shows the ultralow value of 0.25 W m^(-1)K^(-1).As a result,the thermoelectric figure of merit,ZT~0.34 at 723 K,is obtained for the intrinsic Pb_(5)Sb_(12)Bi_(6)Se_(32).

关键词： Thermoelectric Semiconductors Pavonite-type structure Pb_(5)Sb_(12+x)Bi_(6-x)Se_(32) Mixed occupancies Ultralow thermal conductivity

Stochastic Generalized Porous Media Equations with Levy Jump

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Acta Mathematica Sinica,English Series 2011年第9期27卷 1671-1696页

作者： guo Li ZHOU zhen TingHOU College of Mathematics and Statistics Chongqing University Chongqing 401331 P. R. China and School of Mathematics Central South University Changsha 410075 P. R. China School of Mathematics Central South University Changsha 410075 P. R. China

In this paper, we first prove the existence and uniqueness of a general stochastic differential equation in finite dimension, then extend the result to the infinite dimension by the classical Galerkin method. As an application, we prove the existence and uniqueness of the generalized stochastic porous medium equation perturbed by Levy process.

关键词： Stochastic porous medium equation Levy processes

Fabrication and thermal decomposition of glycidyl azide polymer modified nitrocellulose double base propellants

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Science China Chemistry 2016年第4期59卷 472-477页

作者： Benbo Zhao Tianfu Zhang zhen Ge Yunjun luo School of Materials Science and Engineering Beijing Institute of Technology

Glycidyl azide polymer （GAP） with the advantages of non-volatility and excellent thermal stability is a candidate as a re- placement for nitroglycerine （NG） in a double base propellant. The GAP-NC double base propellants were formulated with GAP and nitrocellulose （NC） fibers. Tensile test and SEM characterization indicated that GAP-NC propellants had a homoge- neous structure. Thermogravimetric analysis of GAP-NC propellants revealed that the onset decomposition temperature reached a high level ranging from 192.9 to 194.6 ℃, which indicated that the substitution of NG with GAP contributed to the safe storage and process operations for double base propellant. The result analysis of decomposition products of GAP-NC propellants showed that the main gas decomposition products of the propellants were NO, NO〉 CO, CO2, NH3, CH4, HCN, N2 CH20 and C2H40. The thermal decomposition process of the specimens was proposed.

关键词： glycidyl azide polymers (GAP) nitrocellulose double base propellant nitroglycerine thermal decomposition

超声引导下坐骨神经不同阻滞部位对足部手术患者麻醉效果的影响

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海南医学 2020年第24期31卷 3198-3201页

作者：蔡文博郝建红张洁罗振国董补怀易双强西安交通大学附属红会医院麻醉科陕西西安710054

目的探讨超声引导下坐骨神经不同阻滞部位对足部手术患者麻醉效果的影响。方法选取西安交通大学附属红会医院2018年1月至2019年12月收治的100例足部手术患者为研究对象,按照随机数表法将患者分为观察组和对照组,每组50例。观察组患者给... 详细信息

目的探讨超声引导下坐骨神经不同阻滞部位对足部手术患者麻醉效果的影响。方法选取西安交通大学附属红会医院2018年1月至2019年12月收治的100例足部手术患者为研究对象,按照随机数表法将患者分为观察组和对照组,每组50例。观察组患者给予胫、腓总神经阻滞,对照组给予坐骨神经阻滞。比较两组患者的麻醉阻滞成功率、穿刺时间、成像时间、操作时间、运动阻滞完善时间、神经感觉时间及不良反应发生率情况。结果两组患者的胫神经阻滞完全率、腓总神经阻滞完全率、穿刺时间、成像时间及操作时间比较差异均无统计学意义(P>0.05);观察组患者的胫神经运动、腓总神经运动、胫神经感觉、腓总神经感觉阻滞完善时间分别为(17.26±3.14)min、(16.84±2.72)min、(9.05±1.37)min、(8.39±1.53)min,明显短于对照组的(21.52±4.37)min、(21.37±3.83)min、(11.39±2.61)min、(11.45±2.72)min,差异均有统计学意义(P<0.05);两组患者治疗过程中及出院一周后随访,均无不良反应发生。结论超声引导下坐骨神经阻滞与超声引导下胫、腓总神经阻滞均对足部手术患者的阻滞成功率、操作性及安全性有较好效果,但胫、腓总神经阻滞患者的运动、总神经感觉阻滞完善时间更短,临床治疗中应谨慎选择合理阻滞部位。

关键词：足部手术超声坐骨神经阻滞腓神经胫神经麻醉效果

Optimal transmission strategy for spatially correlated MIMO systems with channel statistical information

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第4期8卷 615-619页

作者： ZHAO zhen-shan XU guo-zhi Department of Electronic Engineering Shanghai Jiao Tong University Shanghai 200240 China

In real multiple-input multiple-output (MIMO) systems, the perfect channel state information (CSI) may be costly or impossible to acquire. But the channel statistical information can be considered relatively stationary during long-term transmission. The statistical information can be obtained at the receiver and fed back to the transmitter and do not require frequent update. By exploiting channel mean and covariance information at the transmitter simultaneously, this paper investigates the optimal trans- mission strategy for spatially correlated MIMO channels. An upper bound of ergodic capacity is derived and taken as the per- formance criterion. Simulation results are also given to show the performance improvement of the optimal transmission strategy.

关键词： MIMO Optimal transmission strategy Channel statistical information

超声引导喉上神经阻滞联合环甲膜穿刺在颈髓损伤患者经鼻清醒气管插管中的应用

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河北医科大学学报 2020年第6期41卷 700-703页

作者：蔡文博易双强郝建红张洁董补怀罗振国西安交通大学附属红会医院麻醉科陕西西安710054

目的探讨超声引导喉上神经阻滞联合环甲膜穿刺在颈髓损伤患者经鼻清醒气管插管中的应用。方法选取80例拟行颈椎减压植骨内固定术需要经鼻清醒气管插管全身麻醉患者,随机分为对照组和超声组,每组40例。对照组在体表定位下行喉上神经阻滞... 详细信息

目的探讨超声引导喉上神经阻滞联合环甲膜穿刺在颈髓损伤患者经鼻清醒气管插管中的应用。方法选取80例拟行颈椎减压植骨内固定术需要经鼻清醒气管插管全身麻醉患者,随机分为对照组和超声组,每组40例。对照组在体表定位下行喉上神经阻滞联合环甲膜穿刺后经鼻气管插管,超声组在超声引导下行喉上神经阻滞联合环甲膜穿刺后经鼻气管插管。记录入室后(T0)、气管导管进入咽喉(T1)、气管导管进入声门即刻(T2)、插管成功后5 min(T3)的平均动脉压(mean arterial pressure,MAP)和心率(heart rate,HR),并记录插管成功情况、插管时间及记录患者术后耐管程度。结果对照组T1、T2、T3时的MAP和HR均明显大于T0(P0.05)。超声组呛咳发生率明显低于对照组(P<0.05)。超声组患者术后耐管程度高于对照组(P<0.05)。结论超声引导喉上神经阻滞联合环甲膜穿刺能够满足经鼻清醒气管插管的需要,患者血流动力学稳定,不良反应少。

关键词：脊髓损伤穿刺术超声检查

Moment Method with Wavelet Expansions for Fractal Rough Surface Scattering

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Chinese Physics Letters 2002年第11期19卷 1617-1620页

作者： guo Li-Xin and Wu zhen-Sen School of Science Xidian University Xi\'an 710071

We study the moment method (MM) to deal with Harr wavelet basis due to the problem of electromagnetic scattering from the fractal rough surface. The vanishing moment properties and the capability of the wavelets to adjust themselves to the fractal surface lead to a sparse impedance matrix and faster computation. Compared to the measured data and the conventional MM, the result shows that the wavelet basis functions provide substantial reductions in both memory requirements and computation time.

关键词： Method of moments

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Chinese Journal of Electronics 2016年第4期25卷 608-613页

作者： guo Jiansheng luo Wei WANG Kun zhengzhou Information Science and Technology Institute Unit 78179 of the PLA

By constructing three types of related-key differential characteristics,we present three corresponding related-key differential attacks on the *** the independence of the characteristics,we could recover 64 bits of the cipher’s master key with 2;chosen plain-texts,2;full-round DDP-64 encryptions and 2;bits of storage *** break the cipher,we only need to implement an exhaustive search for the rest 64 bits of the master key.

关键词： Block cipher DDP-64 block cipher Data dependent permutations(DDPs) Multiple related-key differential attacks