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微波提取银杏黄酮苷的方法研究

天然产物研究与开发 2002年第1期14卷 42-44,47页

作者：周谨闫小燕贺高红金美芳张卫虞星炬大连理工大学化学工程系大连116012 大连化学物理研究所大连116023

利用微波效应 ,以水为溶剂来提取银杏黄酮 ,对微波功率、微波作用时间、溶剂用量、浸提时间等因素做了一些研究 ,获得较好的效果 ,确定较佳的工艺条件为 :微波功率 :中档 ;作用时间 :30min ;固液比为 1∶30 ;水浴时间 :1h 。

关键词：银杏叶黄酮苷微波提取

Kinetic model of vibration screening for granular materials based on biological neural network

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Particuology 2024年第5期88卷 98-106页

作者： Zhan Zhao Yan zhang fang Qin Mingzhi jin School of Agricultural Engineering Jiangsu UniversityZhenjiang212013China Shandong Academy of Agricultural Machinery Sciences Ji'nan250100China

The kinetic model is the theoretical basis for optimizing the structure and operation performance of vibration screening *** this paper,a biological neurodynamic equation and neural connections were established according to the motion and interaction properties of the material under vibration *** material feeding to the screen and the material passing through apertures were considered as excitatory and inhibitory inputs,respectively,and the generated stable neural activity landscape was used to describe the material distribution on the 2D screen *** dynamic process of material vibration screening was simulated using discrete element method(DEM).By comparing the similarity between the material distribution established using biological neural network(BNN)and that obtained using DEM simulation,the optimum coefficients of BNN model under a certain screening parameter were determined,that is,one relationship between the BNN model coefficients and the screening operation parameters was *** screening parameters were randomly selected,and the corresponding relationships were established as a ***,with straw/grain ratio,aperture diameter,inclination angle,vibration strength in normal and tangential directions as inputs,five independent adaptive neuro-fuzzy inference systems(ANFIS)were established to predict the optimum BNN model coefficients,*** training results indicated that ANFIS models had good stability and *** flexibility and adaptability of the proposed BNN method was demonstrated by modeling material distribution under complex feeding conditions such as multiple regions and non-uniform rate.

关键词： Kinetic model Material distribution Vibration screening Biological neural network DEM simulation Adaptive neuro-fuzzy inference systems

Anode reaction mechanisms of Na|NaCl-CaCl2|Zn liquid metal battery

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Journal of Energy Chemistry 2022年第9期31卷 81-87,I0003页

作者： fang zhang jingyun jin Junli xu Zhongning Shi School of Metllurgy Northeastem UniversityShenyang110819LiaoningChina Colege of Sciences Northeastem UniversityShenyang100819LiaoningChina State Key Laboratory of Roling and Automation Northeastern UniversiyShenyang 110819LiaoningChina

Na|NaCl-CaCl_(2)|Zn liquid metal battery is regarded as a promising energy storage system for power *** intensive attempts to present a real mechanism of metal electrodes reaction, those for Na||Zn LMBs are not clear yet. Herein, the anode reactions for the multiple discharge potential plateaus were deduced by means of FactSage thermochemical software, which were subsequently validated by X-ray diffraction analysis and the modeling of phase transformation in the cooling process. A pre-treatment process was proposed for the analysis of anode product composition using the atomic absorption spectrometry method, and the anode states at working temperature(560 ℃) were obtained by the Na-CaZn ternary phase for the first time. The results indicate the discharge of Na and Ca led to the formation of Ca-Zn intermetallic compounds, whilst the extraction of Ca in Ca-Zn intermetallic compounds was responsible for the multiple discharge plateaus. Moreover, it was found that the charging product was in electrochemical double liquid metal layers, which are composed of Na and Ca with dissolved Zn respectively.

关键词： Liquid metal battery Thermodynamic calculation Discharge plateaus Reaction mechanisms Ca-Zn intermetallic compounds

Concise Cascade Methods for Transgenic Rice Seed Discrimination using Spectral Phenotyping

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Plant Phenomics 2023年第3期5卷 564-580页

作者： jinnuo zhang Xuping Feng Jian jin Hui fang Department of Agricultural and Biological Engineering Purdue UniversityWest LafayetteIN 47907USA College of Biosystems Engineering and Food Science Zhejiang UniversityHangzhouChina Huzhou Institute of Zhejiang University HuzhouChina

Currently,the presence of genetically modified(GM)organisms in agro-food markets is strictly regulated by enacted legislation *** is essential to ensure the traceability of these transgenic products for food safety,consumer choice,environmental monitoring,market integrity,and scientific ***,detecting the existence of GM organisms involves a combination of complex,time-consuming,and labor-intensive techniques requiring high-level professional *** this paper,a concise and rapid pipeline method to identify transgenic rice seeds was proposed on the basis of spectral imaging technologies and the deep learning *** composition of metabolome across 3 rice seed lines containing the cry1Ab/cry1Ac gene was compared and studied,substantiating the intrinsic variability induced by these GM *** showed that near-infrared and terahertz spectra from different genotypes could reveal the regularity of GM metabolic *** established cascade deep learning model divided GM discrimination into 2 phases including variety classification and GM status *** could be found that terahertz absorption spectra contained more valuable features and achieved the highest accuracy of 97.04%for variety classification and 99.71%for GM status ***,a modified guided backpropagation algorithm was proposed to select the task-specific characteristic wavelengths for further reducing the redundancy of the original *** experimental validation of the cascade discriminant method in conjunction with spectroscopy confirmed its viability,simplicity,and effectiveness as a valuable tool for the detection of GM rice *** approach also demonstrated its great potential in distilling crucial features for expedited transgenic risk assessment.

关键词： fir simplicity consuming

Recent progress on photoactive nonprecious transition-metal complexes

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Science China Chemistry 2025年第1期 46-95页

作者： Zhong-Liang Gong Hong-Jie zhang Yan Cheng Jianxun Liu Yuhan Ai Yaqin Li Zhihui Feng Qiong zhang Shaolong Gong Yong Chen Chang-Jiang Yao Yuan-Yuan Zhu Liang-jin Xu Yu-Wu Zhong CAS Key Laboratory of Photochemistry Institute of Chemistry Chinese Academy of Sciences State Key Laboratory of Structural Cemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences School of Chemistry and Chemical Engineering Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology State Key Laboratory of Explosion Science and Safety Protection School of Mechatronical Engineering Beijing Institute of Technology College of Chemistry and Molecular Sciences Hubei Key Lab on Organic and Polymeric Optoelectronic Materials Wuhan University School of Chemistry and Chemical Engineering Anhui University Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences

Photoactive complexes of nonprecious transition metals, mainly including those in the first-row and partially the second-row of the Periodic table of elements, have received increasing attention in view of their low cost and long-term sustainability. They are recognized as promising alternatives to noble transition metal complex congeners that have been extensively studied in optoelectronic devices, artificial photosynthesis, photocatalysis, biodiagnostics, and therapeutics, etc. This review is devoted to a comprehensive summary on the classical and recent advances on photoactive nonprecious transition metal complexes, including photoactive Zr, V, Cr, Mo, and W complexes, Mn complexes and hybrids, Fe, Co, Ni, and Cu complexes, and Zn and Cd complexes and hybrids. A particular focus is given on the molecular design, modulation of photophysical and photochemical properties, and applications of the representative and lately-developed nonprecious metal complexes. In addition, a perspective on the future development in this field is provided at the end of this review.

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论现代奇幻小说的界定与价值

太原学院学报（社会科学版） 2025年第1期26卷 107-116页

作者：张方太原师范学院文学院山西晋中030619

作为一种新兴、独立的故事文体,现代奇幻小说与科幻小说一样属于幻想文学的一支,它最初在神话复苏与反理性主义思潮的冲击下形成,并表现出独特的文学内涵与艺术价值。经过一百多年的发展,现代奇幻小说在创作上取得了不俗的实绩,但与之... 详细信息

作为一种新兴、独立的故事文体,现代奇幻小说与科幻小说一样属于幻想文学的一支,它最初在神话复苏与反理性主义思潮的冲击下形成,并表现出独特的文学内涵与艺术价值。经过一百多年的发展,现代奇幻小说在创作上取得了不俗的实绩,但与之相关的理论建构却始终处于相对薄弱的状态,其文类界定与价值判断也尚缺乏一个相对客观的认知与评判。事实上,在对现代奇幻小说的文类边界进行判定时,既应追溯其源流,也应观采其发展。除此以外,现代奇幻小说的诞生与繁荣也喻示着现代文化的又一次转向,它在与流行文化合流的过程中既呈现出与以往小说作品大异其趣的艺术魅力,同时也为批判现代文明提供了新的路径与窗口。

关键词：现代奇幻小说文类界定艺术价值

中央苏区红色资源整理挖掘的实践与思考--以《闽西革命史珍稀史料集》编辑出版为例

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大学图书情报学刊 2025年第1期43卷 130-136页

作者：张芳中共福建省委党校图书馆福州350108

文章通过梳理总结中共福建省委党校图书馆与该校中央苏区史研究中心联合整理挖掘中央苏区红色资源、编辑出版《闽西革命史珍稀史料集》的实践经历,提出中央苏区红色资源开发与利用的三点建议:一是福建、江西、广东三省文化主管部门加强... 详细信息

文章通过梳理总结中共福建省委党校图书馆与该校中央苏区史研究中心联合整理挖掘中央苏区红色资源、编辑出版《闽西革命史珍稀史料集》的实践经历,提出中央苏区红色资源开发与利用的三点建议:一是福建、江西、广东三省文化主管部门加强统筹协作,做好顶层设计;二是运用数字技术构建开放共享的中央苏区红色资源知识平台,实现跨地区、跨领域、跨主体的中央苏区红色资源共建共享;三是加强图书馆、档案馆和革命博物馆等红色资源管理部门与党校、高校及其他科研机构之间的联动协作,形成合力,创新红色资源传播形式,搭建全媒体传播平台。

关键词：中央苏区红色资源整理挖掘编辑出版中国革命史资源共享平台福建省

Optimal operation of multi-storage tank multi-source system based on storage policy

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第8期11卷 571-579页

作者： Hai-en fang Jie zhang jin-liang GAO School of Municipal and Environment Engineering Harbin Institute of Technology Harbin 150090 China

A two-stage method is developed to solve a new class of multi-storage tank multi-source (MTMS) systems. In the first stage, the optimal storage policy of each tank is determined according to the electricity tariff, and the ground-level storage tank is modeled as a node. In the second stage, the genetic algorithm, combined with a repairing scheme, is applied to solve the pump scheduling problem. The objective of the pump scheduling problem is to ensure that the required volume is adequately provided by the pumps while minimizing the operation cost (energy cost and treatment cost). The decision variables are the settings of the pumps and speed ratio of variable-speed pumps at time steps of the total operational time horizon. A mixed coding methodology is developed according to the characteristics of the decision variables. Daily operation cost savings of approximately 11% are obtained by application of the proposed method to a pressure zone of S. Y. water distribution system (WDS), China.

关键词： Multi-storage tank system Storage policy Genetic algorithm Repairing scheme Pump scheduling

Numerical study via total Lagrangian smoothed particle hydrodynamics on chip formation in micro cutting

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Advances in Manufacturing 2020年第2期8卷 144-159页

作者： jin-Shi Wang Xiao-Dong zhang Feng-Zhou fang State Key Laboratory of Precision Measuring Technology and Instruments Centre of Micro/Nano Manufacturing Technology(MNMT)Tianjin UniversityTianjin 300072People's Republic of China Centre of Micro/Nano Manufacturing Technology(MNMT-Dublin) University College DublinDublinIreland

Numerical simulation is an effective approach in studying cutting *** widely used methods for cutting simulation include finite element analysis and molecular ***,there exist some intrinsic shortcomings when using a mesh-based formulation,and the capable scale of molecular dynamics is extremely *** contrast,smoothed particle hydrodynamics(SPH)is a candidate to combine the advantages of *** is a particle method which is suitable for simulating the large deformation process,and is formulated based on continuum mechanics so that large scale problems can be handled in *** a result,SPH has also become a main way for the cutting *** some issues arise while using conventional SPH to handle solid materials,the total Lagrangian smoothed particle hydrodynamics(TLSPH)is *** instabilities would still occur during the cutting,which is a critical issue to *** paper studies the effects of TLSPH settings and cutting model parameters on the numerical instability,as well as the chip formation *** deformation,stress field and cutting forces are analyzed as *** shows that the hourglass coefficient,critical pairwise deformation and time step are three important parameters to control the stability of the simulation,and a strategy on how to adjust them is provided.

关键词： Cutting Total Lagrangian smoothed particle hydrodynamics(TLSPH) Numerical instability Chip formation