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Agricultural Sciences in China 2011年第7期10卷 1134-1138页

作者： huang Jia WU shun-fan YE Gong-yin State Key Laboratory of Rice Biology Ministry of Agriculture/Key Laboratory of Molecular Biology of Crop Pathogens and Insects Institute of Insect Sciences Zhejiang University Hangzhou 310029 P.R.China

Chlorantraniliprole was introduced into China from 2008 as a novel insecticide to control the rice stem borer, Chilo suppressalis （Walker）. Cotesia chilonis （Matsumura） is the major parasitoid of C. suppressalis. We collected seven populations of C. suppressalis and two populations of C. chilonis in different locations in China in 2009 to investigate the lethal effects of chlorantraniliprole on them. The populations of C. suppressalis from different regions showed various LD50 values ranging from 2.00 to 18.70 ng per larva. Chlorantraniliprole has negligible acute contact toxicity （LC50500 mg L-1） to C. chilonis and its oral toxicity is also much lower than that of fipronil （2 800-fold difference in LC50）. The results indicated that chlorantraniliprole is a good alterative in rice integrated pest management （IPM） programs. The susceptibility data of C. suppressalis will be useful for monitoring resistance levels in future.

关键词： chlorantraniliprole Chilo suppressalis Cotesia chilonis integrated pest management (IPM)

Theoretical Design of High-spin Organic Molecules with Heterocycles as Ferromagnetic Coupling Units

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Chemical Research in Chinese Universities 2003年第4期19卷 508-511页

作者： WANG Li-min ZHANG Jing-ping WANG rong-shun Faculty of Chemistry Northeast Normal UniversityChangchun 130024P.R.China

Novel stable high spin molecules possessing three different arranged fashions are designed with - · N-N< as a spin-containing(SC) fragment, phenylene as an end group and various aromatic molecules, such as benzene(1), 2,6-pyridine(2), 3,5-pyridine(3), pyridazine(4), 4,6-pyrimidine(5), 2,6-pyrimidine(6), pyrazine(7) and triazine(8), as a ferromagnetic coupling(FC) unit. The effects of the different coupling units on the spin multiplicities of the ground states and their stabilities were investigated by means of AM1-CI approach. It has been found that the spin densities on the two atoms of the SC fragment are different from delocalization results in the specific stability of - · N-N<. In these molecules, the stabilities of the triplet states decrease when the distance between the atoms of central SC(-N-) increases. It is shown that the heterocycles as the coupling units have influence on the stabilities of the high-spin ground states. That the heteroatom lying in m -phenyl can improve ferromagnetic coupling, while the heteroatom lying in o -phenyl or p -phenyl is not in favor of the ferromagnetic coupling.

关键词： Heterocycle Coupling unit Biradical High-spin AM1-CI B3LYP

Geochemical Characteristics and Sources of Ore-forming Fluids of the Mayuan Pb-Zn Deposit,Nanzheng,Shaanxi,China

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Acta Geologica Sinica(English Edition) 2015年第3期89卷 783-793页

作者： LIU Shuwen LI Ronxi CHI Guoxiang ZENG rong LIU Lingfang SHI shun Chang'an University Key Laboratory for the study of Focused Magmatism and Giant Ore Deposits MLR University of Regina Geophysical and Geochemical Exploration Corporation of Northwest Geological Exploration and Mining Bureau for Nonferrous Metals

The Mayuan stratabound Pb-Zn deposit in Nanzheng,Shaanxi Province,is located in the northern margin of the Yangtze Plate,in the southern margin of the Beiba *** orebodies are stratiform and hosted in breciated dolostone of the Sinian Dengying *** ore minerals are primarily sphalerite and galena,and the gangue minerals comprise of dolomite,quartz,barite,calcite and solid *** inclusions from ore-stage quartz and calcite have homogenization tempreatures from 98 to 337℃ and salinities from 7.7 wt%to 22.2 wt%（NaCl equiv.）.The vapor phase of the inclusions is mainly composed of CH_4 with minor CO_2 and H_*** δD_（fluid） values of fluid inclusions in quartz and calcite display a range from-68‰ to-113‰（SMOW）,and the δ^（18）O_（fluid）values calculated from δ^（18）O_（quartz） and δ^（18）O_（calcite） values range from 4.5‰ to 16.7‰（SMOW）.These data suggest that the ore-forming fluids may have been derived from evaporitic sea water that had reacted with organic *** δ^（13）C_（CH4） values of CH_4 in fluid inclusions range from-37.2‰ to-21.0‰（PDB）,suggesting that the CH_4 in the ore-forming fluids was mainly derived from organic ***,together with the abundance of solid bitumen in the ores,suggest that organic matter played an important role in mineralization,and that the thermochemical sulfate reduction（TSR） was the main mechanism of sulfide *** Mayuan Pb-Zn deposit is a carbonate-hosted epigenetic deposit that may be classified as a Mississippi Valley type（MVT） deposit.

关键词： fluid inclusion ore-forming fluids organic matter Mayuan Pb-Zn deposit Shaanxi

Studies on Effect of Conformation on Spin Multiplicity of m-Phenylene Type of Biradicals by Different Approaches

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Chemical Research in Chinese Universities 2003年第4期19卷 489-493页

作者： WANG Li-min ZHANG Jing-ping WANG rong-shun Faculty of Chemistry Northeast Normal UniversityChangchun 130024P.R.China

The effect of the conformation on the spin multiplicity of the ground state and the stability of the ground state were investigated for m-phenylene type of biradicals by means of comparative study with DFT, CASSCF and AM1-CI approaches. It was found that AM1-CI approach is reliable in dealing with the stability of the high-spin ground state with the change of conformation; DFT method can give the reasonable results of the spin density of the high-spin state. Furthermore, when one or two radical centers are twisted sufficiently out of the conjugation with the benzene ring, m-phenylene turns into weak ferromagnetic and weak antiferromagnetic coupling units, respectively.

关键词： m-Phenylene High-spin Conformation DFT CASSCF AM1-CI

Principles and prospects of Bose-Einstein correlation study at BESIII

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Chinese Physics C 2024年第11期48卷 61-74页

作者： Hai-Ming Hu Guang-shun huang Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China University of Science and Technology of China Hefei 230026China

One method for determining the characteristic parameters of a hadron production source is to measure the Bose-Einstein correlation *** this study,we present fundamental concepts and formulas related to the Bose-Einstein correlations,focusing on the measurement principles and the Lund model from an experimental *** perform Monte Carlo simulations using the Lund model generator in the 2-3 GeV energy *** these feasibility studies,we identify key features of the Bose-Einstein correlations that offer valuable insights for experimental *** data samples collected at BESIII,we perform measurements of the Bose-Einstein correlation functions,with an expected experimental precision of a few percent for the hadron source radius and incoherence parameter.

关键词： Hadron source boson wave function symmetry Bose-Einstein correlation Monte Carlo simulation

Clinicopathologic characteristics of prostatic stromal sarcoma with rhabdoid features: A case report

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World Journal of Clinical Cases 2020年第3期8卷 606-613页

作者： rong-Gang Li Jun huang Department of Pathology Jiangmen Central HospitalAffiliated Jiangmen Hospital of Sun Yat-Sen UniversityJiangmen 529030Guangdong ProvinceChina Department of Urology Jiangmen Central HospitalAffiliated Jiangmen Hospital of Sun Yat-Sen UniversityJiangmen 529030Guangdong ProvinceChina

BACKGROUND Prostatic stromal sarcoma presenting with rhabdoid features is extremely rare,and only four cases have been reported in the English-language literature to ***, there is no absolute definition of this group of tumors as yet, and our overall understanding of its morphological features, therapeutic regimen and prognosis is *** SUMMARY A 34-year-old male patient was referred to our hospital to address a 2-mo history of hematuria and progressive dysuria. Pelvic computed tomography scan revealed a 6.0 cm × 5.2 cm × 7.2 cm mass in the prostate, with bladder *** patient underwent transurethral prostatectomy as upfront therapy. He refused further treatment and died of uncontrollable tumor growth 3 mo after surgery. Pathology analysis revealed the stroma to be pleomorphic, with a huge number of atypical spindle cells. Rhabdomyoblastic cells, with abundant eosinophilic cytoplasm, were detected. The spindle cells were positive for vimentin, INI1 and β-catenin, and the rhabdomyoblastic cells were positive for MyoD1, myogenin and INI1. The spindle cells and epithelial cells were sporadically positive for *** The prostatic stromal sarcoma tumor was immunoreactive for β-catenin,suggesting a role for the Wnt/β-catenin pathway in this tumor type.

关键词： Prostatic stromal tumor Rhabdoid features Morphology Immunohistochemistry Prostate Tumorigenesis Case report

Lattice Boltzmann study on the effects of surface nanostructure on wettability with application in laser scanning fabrication of superhydrophobic surfaces

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Science China(Technological Sciences) 2023年第11期66卷 3197-3205页

作者： huang Hao GUO MingHui WU CongYi rong YouMin huang Yu ZHANG GuoJun State Key Laboratory of Intelligent Manufacturing Equipment and Technology Huazhong University of Science and TechnologyWuhan 430074China School of Mechanical Science and Engineering Huazhong University of Science and TechnologyWuhan 430074China

Nanostructured surfaces with dimensions on a scale of a few millimeters exhibit remarkable *** geometry of these nanostructures considerably affects their ***,determining the optimal geometry is challenging due to the abundance of geometry parameters and the difficulty in numerically describing their effects on wettability at the mesoscopic *** addition,the fabrication of nanostructured surfaces with precise geometries is *** establish a lattice Boltzmann method(LBM)model to address these *** use the model to gain mesoscopic insights into the interaction between droplets and *** model can accurately reproduce contact angles(CAs)on various nanostructured surfaces and enables investigation of the effects of nanostructure geometry on *** optimize the geometry of the nanostructures using the insights provided by the LBM model on the wettability *** analysis indicates that cones with dimensions of 40μm in width and 33μm in height exhibit the highest *** successfully fabricate a superhydrophobic surface with the desired geometry via laser scanning,achieving a CA of 163°.We believe that this approach,which combines the LBM model and laser manufacturing,will enable a better understanding of the wettability mechanism and provide a high-performance approach for fabricating superhydrophobic surfaces.

关键词： wettability lattice Boltzmann method nanostructure laser scanning

Energy harvester array using piezoelectric circular diaphragm for rail vibration

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Acta Mechanica Sinica 2014年第6期30卷 884-888页

作者： Wei Wang rong-Jin huang Chuan-Jun huang Lai-Feng Li State Key Laboratory of Technologies in Space Cryogenic Propellants Technical Institute of Physics and ChemistryChinese Academy of Sciences

Generating electric energy from mechanical vibration using a piezoelectric circular membrane array is presented in this *** electrical characteristics of the functional array consisted of three plates with varies tip masses are examined under dynamic *** an optimal load resistor of 11 k,an output power of 21.4 m W was generated from the array in parallel connection at 150 Hz under a pre-stress of 0.8 N and a vibration acceleration of9.8 m/***,the broadband energy harvesting using this array still can be realized with different tip *** obvious output power peaks can be obtained in a frequency spectra of 110 Hz to 260 *** results show that using a piezoelectric circular diaphragm array can increase significantly the output of energy compared with the use of a single *** by optimizing combination of tip masses with piezoelectric elements in array,the frequency range can be tuned to meet the broadband *** array may possibly be exploited to design the energy harvesting for practical applications such as future high speed rail.

关键词： Energy harvesting Array Piezoelectric material Rail vibration

Regularized least-squares migration of simultaneous-source seismic data with adaptive singular spectrum analysis

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Petroleum Science 2017年第1期14卷 61-74页

作者： Chuang Li Jian-Ping huang Zhen-Chun Li rong-rong Wang School of Geosciences China University of PetroleumQingdao 266580 Shandong China Hisense (Shandong) Refrigerator Co. Ltd HisenseQingdao 266580 Shandong China

Simultaneous-source acquisition has been recog- nized as an economic and efficient acquisition method, but the direct imaging of the simultaneous-source data produces migration artifacts because of the interference of adjacent sources. To overcome this problem, we propose the regularized least-squares reverse time migration method （RLSRTM） using the singular spectrum analysis technique that imposes sparseness constraints on the inverted model. Additionally, the difference spectrum theory of singular values is presented so that RLSRTM can be implemented adaptively to eliminate the migration artifacts. With numerical tests on a fiat layer model and a Marmousi model, we validate the superior imaging quality, efficiency and convergence of RLSRTM compared with LSRTM when dealing with simultaneoussource data, incomplete data and noisy data.

关键词： Least-squares migration Adaptive singularspectrum analysis Regularization Blended data

Understory plant diversity and phenolic allelochemicals across a range of Eucalyptus grandis plantation ages

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Journal of Forestry Research 2023年第5期34卷 1577-1590页

作者： Jinjin Li Yumei huang Lianghua Chen shun Gao Jian Zhang Danju Zhang Sichuan Provincial Key Laboratory of Ecological Forestry Engineering College of ForestrySichuan Agricultural UniversityWenjiang 611130ChengduChina College of Landscape Architecture Sichuan Agricultural UniversityWenjiang 611130ChengduChina

Allelopathy is an important mechanism in Eucalyptus plantations that causes detrimental impacts on understory *** compounds are the main allelochemicals suppressing understory ***,the dynamic changes in phenolic allelochemicals and their relationship with understory diversity with increasing age of Eucalyptus plantations remain largely *** this study,the understory plant diversity was assessed and phenolic compounds identified from leaf litter,roots,and rhizosphere soil samples in a Eucalyptus grandis plantation at two-year intervals for ten years using ultra-performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS).The abundance and diversity of under story plant species were lowest in 4-year-old plantations and increased significantly with *** phenolic acids and 10 flavonoids were identified from leaf litter,roots,and rhizosphere *** of the potential phenolic allelochemicals,such as salicylic acid,gallic acid,4-hydroxybenzoic acid,and epicatechin,were more abundant in younger plantations,especially at4 years *** concentrations of phenolic compounds in the rhizosphere zone were significantly lower than in litter and root samples and did not change significantly with an increase in ***,phenolic compounds contributed more to the variation in the understory plants than soil *** acid,ellagic acid,quercetin,salicylic acid,and 4-hydroxybenzoic acid were the main phenolic compounds explaining the variation in plant diversity with plantation *** findings indicate that young *** plantations,especially at four years of age,merit a greater focus because of their lower understory plant diversity and higher allelopathic potential.

关键词： Eucalyptus grandis Phenolic compounds Understory plant diversity Plantation age

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