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A Blockwall-Type Layered Bis(dithiolato)nickelate Radical Salt Exhibiting High-and Two-Dimensional Antiferromagnetic Coupling Feature

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Chinese Journal of Chemistry 2022年第7期40卷 794-800页

作者： Wan-Wan Yao Yin Qian xuan-rong Chen Xiao-Ming Ren State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry&Molecular Engineering Nanjing Tech UniversityNanjingJiangsu 211816China School of Chemistry&Environmental Engineering and Instrumental Analysis Center Yancheng Teachers University YanchengJiangsu 224007China

The family of[M(dmit)_(2)]-salts(dmit2-=2-thioxo-1,3-dithiole-4,5-dithiolate;M=Ni,Pd and Pt)generally show novel magnetic,elec-tric,magnetoelectric and photoelectric ***,a blockwall-type layered[Me3S][Ni(dmit)_(2)]radical salt(1;Me3S+=trime-thylsulfonium)was prepared and characterized by microanalysis,IR spectroscopy,thermal analysis,powder and single crystal X-ray diffraction *** 1 crystalizes in triclinic space group P-1,with two pairs of[Ni(dmit)_(2)]-and Me3S+ions in an asymmetric *** anions form blockwall-type monolayer,being parallel to crystallographic(011)plane,and the cations are accommodated in the spaces of anion *** 1 features a two-dimensional S=1/2 antiferromagnetic(AFM)spin system withθ=-97.8(1)K and a semiconductor withσ≈10-4 S·cm^(-1) and activation energy Ea=0.24(1)eV in 308-368 K.1 shows two-step dielectric relaxa-tions ranged from 173-373 K and 1-107 Hz for the dipole motions of two different polar *** importantly,the dielectric constant of 1 reaches to~17,with high-κ*** study suggests the possibility of achieving high-K materials by introducing po-lar and low rotation barrier components into van der Waals crystal and high-K[Ni(d m it)_(2)]--based electrode materials for applications in supercapacitors.

关键词： Metal-dithiolene complex Radical ionshigh-κ Semiconductors Magnetic properties

Down-regulation of Bcl-X_L by RNA interference suppresses cell growth and induces apoptosis in human esophageal cancer cells

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World Journal of Gastroenterology 2006年第46期12卷 7472-7477页

作者： Yong-En Xie En-Jie Tang Da-rong Zhang Bi-xuan Ren The Institute of Immunology and Molecular Biology North Sichuan Medical College Nanchong 637007 Sichuan Province China

AIM： To determine the inhibitory effect of the vectorgenerated small interfering RNAs （siRNAs） on the expression of the BcI-XL gene in established human esophageal cancer cells, and to investigate the effect of the BcI-XL siRNAs on cell growth and apoptosis in esophageal cancer cells. METHODS： Three siRNA-expressing vectors targeting different sites of the Bcl-XL gene were constructed from pTZ-U6＋I vector. Cultured esophageal cancer cells were transfected with the siRNA-expressing vector （or the control vector） using lipofectamine 2000. BcI-XL gene expression was determined with semiquantitative RT- PCR assay and Western blotting. Among the three siRNA- expressing vectors, the most highly functional vector and its effect on cell growth and apoptosis in esophageal cancer ceils was further analyzed. RESULTS： Of the three siRNA-expressing vectors, siRNA- expressing vector No.1 was the most potent one which suppressed Bcl-XL mRNA production to 32.5% of that in the untreated esophageal cancer cells. Western blotting analysis showed that siRNA-expressing vector No.1 markedly down-regulated the expression of Bcl-XL in human esophageal cancer cells. Treatment of esophageal cancer cells with siRNA-expressing vector No.1 resulted in inhibition of cell growth and induction of apoptosis. CONCLUSION： Down-regulation of BcI-XL by vectorgenerated small interfering RNAs can suppress cell growth and induce apoptosis in human esophageal cancer cells.

关键词： Esophageal cancer BcI-XL RNA Interference Apoptosis

Self-calibration Time Synchronization Algorithm of WSN Based on Piecewise Fitting 36

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Self-calibration Time Synchronization Algorithm of WSN Based...

Evaporation Characteristics and Morphological Evolutions of Fuel Droplets After Hitting Different Wettability Surfaces

第36届中国控制会议

作者： Ting-dong YE Qing-ming Wang xuan-rong Peng Information Technology College Guangdong Industry Polytechnic

ISBN: (纸本)9781538629185

In view of the time synchronization problem of wireless sensor network（WSN）,the paper presented a self-calibration time synchronization（SCTS） algorithm of WSN based on piecewise fitting,which used a synchronous communication and self-calibration combined *** improved delay measurement time synchronization（DMTS） algorithm was used to realize the synchronization process of nodes by communication opportunities of sleeping-awaking,and if the node missed the synchronization communication opportunity,it would use piecewise fitting method to realize self-calibration of node *** research shows that the average synchronization error of the SCTS algorithm is 27.33 μs,and it can reduce the frequency of time synchronization between nodes,energy and communication overheads of sensor nodes effectively.

关键词： wireless sensor network time synchronization piecewise fitting self-calibration

来源： cnki会议评论

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Journal of Bionic Engineering 2023年第2期20卷 734-747页

作者： Yanling Chen Liang Guo Ningning Cai Wanchen Sun Yuying Yan Degang Li Han Wang rong xuan State Key Laboratory of Automotive Simulation and Control Jilin UniversityChangchun 130025China School of Business and Management Jilin UniversityChangchun130012China Faculty of Engineering University of NottinghamNottinghamNG72RDUK

To solve the wall-wetting problem in internal combustion engines,the physical and chemical etching methods are used to prepare different wettability surfaces with various *** evaporation characteristics and morphological evolution processes of diesel and n-butanol droplets after hitting the various surfaces are *** results show that the surface microstructures increase the surface roughness(Ra),enhancing the oleophilic property of the oleophilic *** with n-butanol droplets,the same surface shows stronger oleophobicity to diesel *** a droplet hits an oleophilic property surface with a lower temperature,the stronger the oleophilicity,the shorter the evaporation *** oleophilic surfaces,larger Ra leads to a higher Leidenfrost temperature(TLeid).The low TLeid caused by enhanced oleophobicity,dense microstructures and increased convex dome height facilitates droplet rebound and promotes the evaporation of the wall-impinging droplets into the *** evaporation rate of the droplets is not only related to the characteristics of the solid surfaces and the fuel droplets but also affected by the heat transfer rate to the droplets in different boiling *** spreading diameter of a droplet on an oleophobic surface varies significantly less with time than that on an oleophilic surface under the same surface temperature.

关键词： Fuel droplets Wettability Evaporation time Leidenfrost temperature Morphological evolutions

Preparation of （2E）-3-（4＇-Halophenyl）prop-2-enoyl Sulfachlorpyridazine Sodium Salts and Their Interaction with Bovine Serum Albumin by Fluorescence Spectroscopy

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Chemical Research in Chinese Universities 2013年第5期29卷 854-860页

作者： DU Chuan-rong LUO xuan WEI Jin-rui HE Ting-ting ZHENG Xiao-yu LIN Cui-wu School of Chemistry and Chemical Engineering Guangxi University Nanning 530004 P. R. China

Three （2E）-3-（4＇-halophenyl）prop-2-enoyl sulfachlorpyridazine sodium salts（XPSCA） were synthesized. Their chemical structures were confirmed by IH NMR and 13C NMR, electrospray ionization mass spectrometry （ESI-MS）, and infrared（IR） spectroscopy. The interactions between XPSCA and bovine serum albumin（BSA） were investigated under imitated physiological condition by fluorescence quenching technique and UV-Vis absorption spectroscopy according to the Stern-Volmer equation. The results from the emission quenching at different tempera- tures indicate that the quenching mechanism of serum albumin by XPSCA was static quenching mechanism at low XPSCA concentrations or a combined quenching（static and dynamic） mechanism at higher XPSCA concentrations. At different temperatures, the binding constant and the binding sites of XPSCA with BSA were investigated, and the distances were evaluated according to F6rster non-radiative resonance energy transfer theory. The thermodynamic parameters were calculated according to van＇t Hoff equation, which implies that both van der Waals interaction and hydrogen bond played major roles in stabilizing the XPSCA-BSA complexes, whereas hydrophobic interactions were secondary. Moreover, the conformational changes in BSA were analyzed by synchronous fluorescence spectra.

关键词： Sulfachlorpyridazine sodium Bovine serum albumin Halo-cinnamic acid Fluorescence spectroscopy

‘3820’Project in Fuzhou

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China News Release 2024年第3期 38-42页

作者： rong xuan 不详

On the eve of the 2024 Spring Festival,amidst the blare of a loud whistle,the“Fuyuanyu 8731”deep-sea f ishing boat laden with a bounty of deep-sea f ish leisurely glided from the mouth of the Minjiang River channel into the home port at the core area of the Fuzhou(Lianjiang)National Far-Sea Fishery Base in Lianjiang County,east China’s Fujian Province.

关键词： Province east mouth

Expression and clinical significance of short-chain fatty acids in patients with intrahepatic cholestasis of pregnancy

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World Journal of Hepatology 2024年第4期16卷 601-611页

作者： Shuai-Jun Ren Jia-Ting Feng Ting Xiang Cai-Lian Liao Yu-Ping Zhou rong-rong xuan Department of Obstetrics and Gynecology The First Affiliated Hospital of Ningbo UniversityNingbo 315100Zhejiang ProvinceChina Health Science Center Ningbo UniversityNingbo 315211Zhejiang ProvinceChina Department of Gastroenterology The First Affiliated Hospital of Ningbo UniversityNingbo 315211Zhejiang ProvinceChina Institute of Digestive Disease Ningbo UniversityNingbo 315020Zhejiang ProvinceChina

BACKGROUND Intrahepatic cholestasis of pregnancy(ICP)is a pregnancy-specific liver condition that typically arises in the middle and late stages of ***-chain fatty acids(SCFAs),prominent metabolites of the gut microbiota,have significant connections with various pregnancy complications,and some SCFAs hold potential for treating such ***,the metabolic profile of SCFAs in patients with ICP remains *** To investigate the metabolic profiles and differences in SCFAs present in the maternal and cord blood of patients with ICP and determine the clinical significance of these *** Maternal serum and cord blood samples were collected from both patients with ICP(ICP group)and normal pregnant women(NP group).Targeted metabolomics was used to assess the SCFA levels in these *** Significant differences in maternal SCFAs were observed between the ICP and NP *** SCFAs exhibited a consistent declining trend in cord blood samples from the ICP group,mirroring the pattern seen in maternal *** analysis revealed a positive correlation between maternal serum SCFAs and cord blood SCFAs[r(Pearson)=0.88,P=7.93e-95].In both maternal serum and cord blood,acetic and caproic acids were identified as key metabolites contributing to the differences in SCFAs between the two groups(variable importance for the projection>1).Receiver operating characteristic analysis demonstrated that multiple SCFAs in maternal blood have excellent diagnostic capabilities for ICP,with caproic acid exhibiting the highest diagnostic efficacy(area under the curve=0.97).CONCLUSION Compared with the NP group,significant alterations were observed in the SCFAs of maternal serum and cord blood in the ICP group,although they displayed distinct patterns of ***,the SCFA levels in maternal serum and cord blood were significantly positively ***,certain maternal serum SCFAs,specifically caproic and acetic acids,demonst

关键词： Intrahepatic cholestasis of pregnancy Short-chain fatty acids Maternal serum Cord blood Caproic acid

Acute appendicitis–advances and controversies

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World Journal of Gastrointestinal Surgery 2021年第11期13卷 1293-1314页

作者： Thomas Zheng Jie Teng xuan rong Thong Kai Yuan Lau Sunder Balasubramaniam Vishal G Shelat Department of General Surgery Tan Tock Seng HospitalSingapore 308433Singapore Department of Undergraduate Medicine Lee Kong Chian School of MedicineSingapore 308232Singapore

Being one of the most common causes of the acute abdomen,acute appendicitis(AA)forms the bread and butter of any general surgeon’s *** the recent advancements in AA’s management,much controversy in diagnostic algorithms,possible differential diagnoses,and weighing the management options has been generated,with no absolute consensus in the *** Alvarado described his eponymous clinical scoring system in 1986 to stratify AA risk,there has been a burgeoning of additional scores for guiding downstream management and mortality ***,advancing literature on the role of antibiotics,variations in appendicectomy,and its adjuncts have expanded the surgeon’s repertoire of management *** to the varied presentation,diagnostic tools,and management of AA have also been proposed in special groups such as pregnant patients,the elderly,and the *** article seeks to raise the critical debates about what is currently known about the above aspects of AA and explore the latest controversies in the *** the ever-evolving coronavirus disease 2019 situation worldwide,we also discuss the pandemic’s repercussions on patients and how surgeons’practices have evolved in the context of AA.

关键词： Appendicitis Diagnosis Management COVID-19 Controversy Advances

Fast Photoacoustic Imaging of Blood Vessels Based on an Annular Transducer Array

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Chinese Physics Letters 2012年第10期29卷 85-88页

作者： YANG Di-Wu ZENG Lv-Ming JI xuan-rong HUANG Zhong CHEN Xing-Hui TAN Zhi Department of Physics and Engineering Hunan University of TechnologyZhuzhou 412000 Key Lab of Optic-Electronic and Communication Jiangxi Sciences and Technology Normal CollegeNanchang 330038 Doppler Electronic Technologies Company Ltd. Guangzhou 510663

We present a photoacoustic imaging system for rapid high-resolution photoacoustic imaging of blood vessels based on an annular transducer *** annular transducer array consists of 256 elements arranged along a 300°arc with a 50-mm radius of curvature,using piezocomposite technology for high sensitivity and high signal-to-noise *** eight-channel data acquisition system is applied to capture the photoacoustic signals using multiplexing and a limited-view filtered back projection algorithm is used to reconstruct the photoacoustic *** experiments with phantom and blood vessels of a chicken are performed and clear photoacoustic images are *** results demonstrate that the photoacoustic imaging system using the annular transducer array holds the potential application in monitoring neovascularization in tumor angiogenesis.

关键词： Transducer annular Blood