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Chinese Journal of Chemical Physics 2008年第6期21卷 526-534页

作者： Ling Qiu Xue-dong Gong he-ming xiao Institute for Computation in Molecular and Material Science School of Chemical Engineering Nanfing University of Science and Technology Nanjing 210094 China Key Laboratory of Nuclear Medicine Ministry of Health Jiangsu Institute of Nuclear Medicine Wuxi 214063 China

Density functional theory method was employed to study the effect of the nitroamino group as a substituent in cyclopentane and cyclohexane, which usually construct polycyclic or caged nitramines. Based on the optimized molecular structures of two groups of monocyclic nitramines at the B3LYP/6-31G^＊＊ level, the infrared （IR） spectra were obtained and assigned by harmonic vibrational analysis. The calculated results agree reasonably with the available experimental data. According to the principles of statistic thermodynamics, thermodynamic properties were derived from the IR spectra, which were linearly correlated with the number of nitroamino groups as well as the temperature. The contributions of nitroamino groups to thermodynamic properties are in accord with the group additivity.

关键词： Density functional theory Substituent effect Monocyclic nitramine Infrared spectrum Thermodynamic property

Optioning Water Rights:A Potential Alternative to the Hanjiang-Weihe River Water Transfer Project,China

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Chinese Geographical Science 2020年第6期30卷 1039-1051页

作者： he xiaoying KANG Hong gu Yaopeng SONG Yuanliang School of Management and Economics Xi'an Technological UniversityXi'an 710021China Zhongguancun Listed Companies Association Beijing 100011China

China has started shifting from relying on supply management to demand management strategy in addressing its water shortage *** option,a financial derivative for water commodity,has been utilized to manage water demands in the United States and Europe since the 1990 s but is still novel to *** this study we analyzed the pros and cons of China’s existing system for water rights transfers and proposed an alternative,flexible trading instrument-water options for *** the uncertainty to water option pricing,this study first conducted an empirical analysis of the water option in the water-receiving area of the Hanjiang-Weihe River Transfer Project of China,and then evaluated the benefits of the water option *** show that water option trading can bring water cost saving and increase the potential industrially added value for industrial enterprises in the receiving area,and trading of short-and-medium term water options is more favorable than the long-term water options *** novel water option trading proposed in this study,once verified through pilot studies,will be helpful in addressing water shortage problems in China.

关键词： water shortage demand management water rights transfer water options water diversion project

In-situ constructed three-dimensional MoS_(2)–MoN heterostructure as the cathode of lithium–sulfur battery

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Rare Metals 2022年第5期41卷 1743-1752页

作者： Jing-Han Zuo Peng-Bo Zhai Qian-Qian he Lei Wang Qian Chen xiao-Kang gu Zhi-Lin Yang Yong-Ji Gong School of Materials Science and Engineering Beihang UniversityBeijing 100191China

Lithium-sulfur batteries are recognized as one of the most promising next-generation high-performance energy storage systems. However, obstacles like the irreversible capacity loss hinder its broad application. herein,we fabricated an interconnected three-dimensional MoS_(2)-MoN heterostructure(3D-MoS_(2)-MoN) via a facile salttemplate method, overcoming the intrinsic shortcomings such as poor conductivity and compact morphology of traditionally-synthesized transition metal sulfides(TMSs).Furthermore, excellent electrocatalysis ability and hierarchical pore structure effectively accelerate the sluggish lithium polysulfides conversions during cycling. As a result, 3D-MoS_(2)-MoN showed a high initial specific capacity of 1466 mAh·g^(-1)and excellent high-rate capability up to 4℃. A stable cycling performance with a sulfur loading of 2 mg·cm^(-2) was realized with a low decay rate of 0.069% per cycle. This work introduced a rational design route for the appliance of TMSs in the lithiumsulfur batteries.

关键词： heterostructure Transition metal sulfides Three-dimensional Electrocatalysis

文旅数字化发展的理论与实践研究——以四川为例

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四川旅游学院学报 2025年第1期 52-58页

作者：何小东易敏任啸成都大学四川成都610044 西南民族大学四川成都610041 四川省旅游投资集团四川成都610147

四川省高度关注文旅产业数字化转型,积极探索“数字+文旅”发展路径,各级政府相继出台系列文件,助力数字文旅发展。文章以四川省数字文旅资金投入情况、数字化项目建设情况、文旅重点行业数字化建设情况等为基础,分析四川数字文旅发展... 详细信息

四川省高度关注文旅产业数字化转型,积极探索“数字+文旅”发展路径,各级政府相继出台系列文件,助力数字文旅发展。文章以四川省数字文旅资金投入情况、数字化项目建设情况、文旅重点行业数字化建设情况等为基础,分析四川数字文旅发展现存问题,探索数字文旅发展路径,并围绕管理、市场、产品等方面提出四川数字文旅发展建议,以期推动四川省数字文旅融合高质量发展,并为其他地区数字文旅发展提供相关借鉴。

关键词：数字文旅高质量发展四川

Joint Monitoring of Ground and Sky for Cereal Crops Based on Scatterometer Measurement and ASAR Images

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Journal of Electronic Science and Technology 2019年第3期17卷 278-288页

作者： Lei he Feng-Jin xiao the School of Software Engineering Chengdu University of Information TechnologyChengdu 610225 National Climate Center Beijing 100081

The joint monitoring of the ground and sky for cereal crops based on microwave data has become a popular method for researches on earth surface objects. Focused on the sensitivity of backscatter from the scatterometer measurement and advanced synthetic aperture radar (ASAR) images to cereal parameters of rice, nine acquisitions, including rice parameters related eco-physiological variables and scattering coefficients, have been carried over the paddy field corresponding to rice growth stages. This paper analyzes the relationship between the corresponding backscatter to the cereal parameters based on the measurement at the interesting bands, polarizations, and incidence angels. Further, a modified water cloud model is built based on the ground measurement and advanced integrated equation model (AIEM), and then cereal parameters from ASAR images are retrieved and verified. The research results show that the sensitivity of backscatter to cereals from the sensor of the radar scatterometer could be helpful to build the retrieve model for synthetic aperture radar (SAR) images, which can achieve the scientific goals of the joint monitoring of ground and sky for cereal crops.

关键词： Backscatter cereal joint monitoring scatterometer synthetic aperture radar(SAR)

Recent progress in the study of methylated tumor suppressor genes in gastric cancer

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Chinese Journal of Cancer 2013年第1期32卷 31-41页

作者： xiao-Tong Hu Chao he Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province Department of Colorectal Surgery Sir Run Run Shaw Hospital

Gastric cancer is one of the most common malignancies and a leading cause of cancer mortality *** pathogenesis mechanisms of gastric cancer are still not fully *** of tumor suppressor genes and activation of oncogenes caused by genetic and epigenetic alterations are known to play significant roles in *** evidence has shown that epigenetic silencing of the tumor suppressor genes,particularly caused by hypermethylation of CpG islands in promoters,is critical to carcinogenesis and ***,we review the recent progress in the study of methylations of tumor suppressor genes involved in the pathogenesis of gastric *** also briefly describe the mechanisms that induce tumor suppressor gene methylation and the status of translating these molecular mechanisms into clinical applications.

关键词：抑癌基因甲基化胃癌肿瘤抑制基因癌组织发病机制表观遗传恶性肿瘤

Anemone medicinal plants:ethnopharmacology,phytochemistry and biology

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Acta Pharmaceutica Sinica B 2017年第2期7卷 146-158页

作者： Da-Cheng Hao xiaojie gu Peigen xiao Biotechnology Institute School of Environment and Chemical EngineeringDalian Jiaotong UniversityDalian 116028China Institute of Medicinal Plant Development Chinese Academy of Medical SciencesBeijing 100193China

The Ranunculaceae genus Anemone(order Ranunculales),comprising more than 150 species,mostly herbs,has long been used in folk medicine and worldwide *** medicinal compounds have been found in Anemone plants,especially triterpenoid saponins,some of which have shown anti-cancer *** Anemone compounds and extracts display immunomodulatory,antiinflammatory,antioxidant,and antimicrobial *** than 50 species have ethnopharmacological uses,which provide clues for modern drug *** compounds exert anticancer and other bioactivities via multiple ***,a comprehensive review of the Anemone medicinal resources is *** here summarize the ethnomedical knowledge and recent progress on the chemical and pharmacological diversity of Anemone medicinal plants,as well as the emerging molecular mechanisms and functions of these medicinal *** phylogenetic relationships of Anemone species were reconstructed based on nuclear ITS and chloroplast *** molecular phylogeny is largely congruent with the morphology-based *** used medicinal herbs are distributed in each subgenus and section,and chemical and biological studies of more unexplored taxa are *** expression profiling and relevant "omics" platforms could reveal differential effects of ***,transcriptomics,proteomics,and metabolomics should be highlighted in deciphering novel therapeutic mechanisms and utilities of Anemone phytometabolites.

关键词： Anemone Ethnomedicine Chemodiversity Bioactivity Molecular mechanism Pharmacophylogeny

Ince-Strutt Stability Charts for Ship Parametric Roll Resonance in Irregular Waves

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China Ocean Engineering 2017年第4期31卷 447-457页

作者： ZHANG xiao YANG he-zhen xiao Fei XU Pei-ji National Key Laboratory on Ship Vibration &Noise China Ship Development and Design Center State Key Laboratory of Ocean Engineering School of Naval Architecture.Ocean and Civil EngineeringShanghai Jiao Tong University School of Civil and Environmental Engineering Nanyang Technological University

Ince-Strutt stability chart of ship parametric roll resonance in irregular waves is conducted and utilized for the exploration of the parametric roll resonance in irregular waves. Ship parametric roll resonance will lead to large amplitude roll motion and even wreck. Firstly, the equation describing the parametric roll resonance in irregular waves is derived according to Grim’s effective theory and the corresponding Ince-Strutt stability charts are obtained. Secondly, the differences of stability charts for the parametric roll resonance in irregular and regular waves are compared. Thirdly, wave phases and peak periods are taken into consideration to obtain a more realistic sea condition. The influence of random wave phases should be taken into consideration when the analyzed points are located near the instability boundary. Stability charts for different wave peak periods are various. Stability charts are helpful for the parameter determination in design stage to better adapt to sailing condition. Last, ship variables are analyzed according to stability charts by a statistical approach. The increase of the metacentric height will help improve ship stability.

关键词： parametric instability parametric rolling multi-frequency irregular waves Ince-Strutt stability chart

Theoretical Study on the Ordered Structure in Lanthanum-Modified Lead Zirconate Titanate

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Chinese Physics Letters 1996年第9期13卷 696-699页

作者： guI Hong ZHANG xiao-wen gu Bing-lin Department of Materials Science and Engineering Department of Physics Tsinghua UniversityBeijing 100084

The 1/2{111}-type ordered structure observed in lanthanum-modified lead zirconate titanate has been proved to be stable in the next-nearest-neighbor approximation by the eightpoint cluster variation *** order parameter as a function of the composition of La3+and lead vacancies and the order-disorder phase diagram have been obtained.

关键词： method lanthanum Modified

Bandgap Analysis of Periodic Composite Microplates with Curvature-Based Flexoelectricity:A Finite Element Approach

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Acta Mechanica Solida Sinica 2022年第6期35卷 996-1003页

作者： Pengyu Lai Zhangzhang he Yu Cong Shuitao gu Gongye Zhang School of Civil Engineering Chongqing UniversityChongqing400044China Jiangsu Key Laboratory of Engineering Mechanics School of Civil EngineeringSoutheast UniversityNanjing210096China University Paris-Saclay Univ EvryLMEE91020EvryFrance

A finite element model is proposed permitting prediction of elastic wave bandgaps of periodic composite microplates incorporating flexoelectric *** this model,we applied curvature-based flexoelectricity and Mindlin plate theories and derived a finite element formulation that has been implemented for bandgap *** finite element model utilizes a three-node triangle element with 30 degrees of freedom satisfying Mindlin kinematics *** is based on a non-conforming interpolation scheme which provides nodal C^(1) continuity and ensures compatibility with curvature-based *** approach accounts for microstructure effects and,owing to the triangular element topology,can be used to assist the design of microplates with complex *** of the approach is performed through comparison with both analytical and numerical models,in which the effect of flexoelectricity on the bandgap is studied based on cases demonstrating size dependence.

关键词： Bandgap Elastic wave propagation Metamaterial design Curvature-based flexoelectricity Mindlin plate finite element