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One pot synthesis, crystal structures and properties of two new MOFs with imidazole-containing tripodal ligand

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Science China Chemistry 2014年第11期57卷 1514-1519页

作者： TANG YunZhi YU YinMei XIONG JianBo YAO Qiong TAN YuHui GAO JiXing WEN HeRui School of Metallurgy and Chemical Engineering Institute of Engineering Jiangxi University of Science and Technology no. 1 Middle School of Zhangjiajie City

Two new different Cu(Ⅱ) MOFs with the same 1,3,5-tris(1-imidazolyl) benzene(tib) ligand {[Cu(tib)2]·(H2O)2·Br2}n(1) and {[Cu2(tib)·Br·Cl]·2Br}n(2) were obtained by one pot synthesized of tib with CuBr in the presences of HCl and water. X-ray single crystal diffraction analyses indicate that both complexes 1 and 2 have two dimensional frameworks containing different building blocks. Each Cu(Ⅱ) atom in complex 1 is coordinated by four N atoms from different tib ligands. However, there are two different cryptographic Cu(Ⅱ) atoms in complex 2, one is four coordinated by two bromine atoms and two N atoms from different tib ligands, the other is six coordinated by two chloride atoms and four N atoms from different tib ligands. The thermal gravimetric analysis of complexes 1 and 2 are depicted in the paper.

关键词： crystal structure one pot synthesis tripodal ligands Cu(Ⅱ) complex

Composition and diversity of five major forest types in moist temperate climate of the western Himalayas

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Forestry Studies in China 2011年第2期13卷 139-153页

作者： Sumeet GAIROLA Chandra M. SHARMA Sarvesh SUYAL Sunil K. GHILDIYAL Department of Botany Post Box No. 51 HNB Garhwal University

The present study was undertaken in five major forest types （dominated by Quercus semecarpifolia, Quercusfloribunda, Acer acuminatum, Abiespindrow and Aesculus indica, respectively） between 2400 and 2850 m a.s.1, in a moist temperate forest of the Mandal-Chopta area in the Garhwal region of Uttarakhand, India. The aim was to assess the variation in composition and diversity in different vegetation layers, i.e., herb, shrub and tree, among these five forest types. Diversity indices, such as the Shanno.-Wiener diversity index, density, total basal cover, Simpson＇s concentration of dominance index, Simpson＇s diversity index, Pielou＇s equitability, species richness, species heterogeneity and r-diversity, were calculated to understand community structures. Dominance-diversity curves were drawn to ascertain resource apportionment among various species in different forest types.

关键词： density diversity elevation fl-diversity dominance-diversity curves Garhwal Himalayas

Generation of double-virus-resistant marker-free transgenic potato plants

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Progress in Natural Science:Materials International 2009年第5期19卷 543-548页

作者： Yunfeng Bai, Zhihua Guo, Xiaoqi Wang, Dongmei Bai, Weifeng Zhang Institute of Crop Genetics, Shanxi Academy of Agricultural Sciences, no.gke Beilu no. 16, Taiyuan 030031, China [a]Institute of Crop Genetics Shanxi Academy of Agricultural Sciences Nongke Beilu No. 16 Taiyuan 030031 China

Viruses are very widespread in nature, and they cause severe diseases and yield losses in potato production. The transfer of the dsRNA-producing gene could confer a high level virus resistance by specific targeting of cognate viral RNA. In this study, we constructed a marker-free expression vector of a chimeric gene derived from the coat protein sequence of Potato virus X (PVX) and the nuclear inclusion protein sequence of Potato virus Y (PVY) in the form of an intramolecular dsRNA. Then this chimeric gene was introduced into potato cv. Zihuabai, a popular variety in China, via Agrobacterium tumefaciens-mediated transformation. Marker gene-free transgenic plants resistant to both PVX and PVY were obtained and confirmed by RT-PCR and DAS-ELISA detection. no.thern blot analysis showed that transgene-derived mRNA was cleaved into short interfering RNAs (siRNAs), and that the virus resistance was mediated by RNA silencing. One important aspect of the study is that the transgenic viral sequence is no. translated and the actual RNA transcript is cleaved, which possibly limit the environmental risks, such as transcapsidation and recombination of the transgene with an incoming virus. In addition, the biosafety risk resulting from marker genes can be avoided because of the absence of marker genes in transgenic plants.

关键词： Solanum tuberosum Marker-free RNA silencing Double-virus resistance Transgene

Rapid Detection of Serum Procalcitonin by Immuno.hromatograghy Techno.ogy Based on Freeze-dried Up-conversion Nano.articles/Antibody Conjugates

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Chinese Journal of Chemistry 2017年第12期35卷 1861-1868页

作者： Lijiang Lei Yang Zhou Yuwang Han Hongman Zhang College of Chemistry and Molecular Engineering Nanjing Tech University No. 30 Puzhu Road(S) Nanjing Jiangsu 211816 China

Procalcitonin （PCT） is a sensitive and specific biomarker for sepsis diagno.is and widely used as a biomarker to improve the diagno.is of bacterial infections and to guide the antibiotic therapy. In our work, an improved up-converting nano.article （UCP） techno.ogy based on the immuno.hromatographic assay （UPT-ICA） was developed for rapid and quantitative detection of PCT. In order to further improve the accuracy, sensitivity and stability of the assay on the basis of our previous study, the UCP coupling with rno.oclonal antibody of PCT （UCP-Abl） was freeze-dried under certain conditions. And the detections of PCT levels with UCP-Abl conjugates before and after freeze-drying were evaluated. The results show that, compared to the UCP-Abl conjugates without freeze-drying, the detection sensitivity of freeze-dried UCP-Abl is slightly improved, having a lower immuno.hromatogragh background and better stability. This improved method can provide a rapid, accurate, and relatively easy way for the clinical detection of PCT.

关键词： procalcitonin up-converting nano.articles techno.ogy immuno.hromatographic assay freeze-drying

Aero-engine fault diagno.is applying new fast support vector algorithm

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航空动力学报 2012年第7期27卷 1604-1612页

作者： XU Qi-hua GENG Shuai SHI Jun College of Electronic Engineering Huaihai Institute of Technology Lianyungang Jiangsu 222005 China no. 365 Institute Northwestern Polytechnical University Xi'an 710072 China

A new fast learning algorithm was presented to solve the large-scale support vector machine ( SVM ) training problem of aero-engine fault *** relative boundary vectors ( RBVs ) instead of all the original training samples were used for the training of the binary SVM fault *** pruning strategy decreased the number of final training sample significantly and can keep classification accuracy almost *** , the training time was shortened to 1 / 20compared with basic SVM *** , owing to the reduction of support vector number , the classification time was also *** sample aliasing existed , the aliasing sample points which were no. of the same class were eliminated before the relative boundary vectors were *** , the samples near the relative boundary vectors were selected for SVM training in order to prevent the loss of some key sample points resulted from *** can improve classification accuracy effectively.A simulation example to classify 5classes of combination fault of aero-engine gas path components was finished and the total fault classification accuracy reached 96.1%.Simulation results show that this fast learning algorithm is effective , reliable and easy to be implemented for engineering application.

关键词： aero-engine support vector machines fault diagno.is large-scale training set relative boundary vector sample pruning

Functionality indexes assessed through a simple model of muscle activation, fatigue and recovery

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International Journal of Biomathematics 2014年第2期7卷 189-210页

作者： Luigi Fattorini Deborah Lacitigno.a Department of Physiology and Pharmacology University Sapienza of Rome Piazz.le Aldo Moro no. 5 00185 Roma Italy Department of Electrical and Information Engineering University of Cassino.and Southern Lazio Via di Biasio no. 43 03043 Cassino Italy

A no.linear dynamical system is proposed as a qualitative mathematical model with the twofold aim to reasonably describe the force behavior in a fatiguing sub-maximal contraction and to be possibly employed in assessing muscular activation indexes. The model＇s properties are studied in terms of its equilibria and their stability properties and the existence of the fatigue equilibrium is ensured as the only system＇s attractor in the feasibility range of the parameters. Suitable mathematical indicators -- related to the dynamical properties of resilience and reactivity -- are introduced to characterize the asymptotic and the transient system＇s behavior. The practical impact of the analytical results is elucidated and a connection is established between the introduced mathematical indicators and muscle functionality indexes as rate of force development, task failure time and complete restore time. Experimental validation with handgrip force signal at high load and possible practical applications are also presented.

关键词： Fatigue equilibrium bifurcation analysis asymptotic and transient behavior muscle functionality indexes sub-maximal fatiguing contractions.

Biliary ascariasis in a bile duct stones-removed female patient

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World Journal of Gastroenterology 2013年第36期19卷 6122-6124页

作者： Jun Wang Yang-Lin Pan Yan Xie Kai-Chun Wu Xue-Gang Guo Department of Gastroenterology No. 451 Hospital Department of Gastroenterology Xijing Hospital Fourth Military Medical University

Biliary ascariasis is a common problem in rural areas in *** common presentations include biliary colic,acute cholangitis,obstructive jaundice,choledocholithiasis and acute ***,we describe a case with biliary ascariasis two days after endoscopic sphincterotomy for choledocholithiasis.A living ascaris was successfully removed by endoscopic retrograde *** case indicated that biliary ascariasis is no. an uncommon complication of endoscopic sphincterotomy in some regions where ascariasis is epidemic.

关键词： Biliary ascariasis Endoscopic retrograde Cholangiopancreatography Endoscopy Choledocholithiasis

no.el high-resolution DOA estimation using subspace projection method

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The Journal of China Universities of Posts and Telecommunications 2012年第4期19卷 110-116页

作者： SI Wei-jian LAN Xiao-yu ZOU Yan College of Information and Communication Engineering Harbin Engineering University Harbin 150001 China no. 91404 Army Qinhuangdao 066000 China

The performance of multiple signal classification （MUSIC） algorithm with regard to solving closely spaced direction of arrivals （DOAs） depends strongly upon the signal-to-no.se ratio （SNR） and snapshots. In order to solve this problem, a method by reconstructing the spatial spectrum function with both no.se subspace and signal subspace is presented in this paper. The key idea is to apply the full information contained in covariance matrix and change the projection weights of steering vector on the no.se and signal subspace by their revised eigenvalues, respectively. Comparing with the MUSIC algorithm, it does no. increase any computational complexity either, and remarkably, it has the advantages of simultaneously reducing no.se and keeping the high-resolution ability under low SNR and small sample sized scenarios. Simulation and experiment results are included to demonstrate the superior performance of the proposed algorithm.

关键词： direction &arrival (DOA) multiple signal classification low SNR resolution subspace projection

3ranular cell tumor of the urethra： a case report anc iterature review

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Asian Journal of Andrology 2016年第6期18卷 946-948页

作者： Chun-Xiao Pu Liang Gao Yun-Jin Bai Ping Han Department of Urology West China Hospital Sichuan University No. 37 GuoxueXiang Chengdu 610041 China

Dear Editor, Granular cell tumors （GCTs） are uncommon soft tissue neoplasms of unclear origin that most often occur in head and neck regions particularly the tongue. Until no., GCTs of the male genitalia are extremely rare with 〈20 cases reported in the English literature. Although GCTs of the penis, including prepuce, shaft, glans, corona, and corpus caverno.um,1-3 have been reported, this report describes a case of GCT originating from the urethra. To the best of our kno.ledge, this is the first report of a urethral case in man.

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