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催化学报 2003年第4期24卷 241-242页

作者： WANGBingxing XIEYan wangli baijILING HEGuozhong ChemistryDepartment LiaoningNormalUniversityDalian116029LiaoningChina StateKeyLaboratoryofMolecularReactionDynamics DalianInstituteofChemicalPhysicsTheChineseAcademyofSciencesDalian116023LiaoningChina

Time-resolved detection, which is not possible with conventional GC, MS, or GC-MS, is of particular importance in monitoring the products of catalytic reactions. Resonance-enhanced multipho-ton ionization (REMPI) can ionize target molecules with high selectivity and sensitivity, and has been widely applied to the study of structure and energy-transfer dynamics of atoms, molecules and free radi-cals[l'2]. Time-of-flight (TOP) MS not only has high sensitivity, but also has good mass resolution and fast time-response . Typically, a whole TOF mass spectrum can be completed in several ten microseconds. InTOFMS, a three-stage microchannel plate (MCP) detector is used to detect the ion signal. The gain is 108~109. Therefore, it is of interest to monitor a catalytic reaction by combining REMPI with TOFMS. The benefit of using REM-Pf-TOFMS is the high sensitivity and the shielding against possible interference. In this paper, we investigated in real-time the dehydro-aromatization of methane by resonance-enhanced 2-photon ionization (RE2PI) combined with TOFMS.

关键词： Mo/HZSM-5 多光子电离甲烷飞行时间质谱脱氢芳构化反应分子筛负载钼催化剂

Characteristics and Application of Andalusite Material and Andalusite-Based Refractory

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China's Refractories 2005年第2期14卷 33-37页

作者： DONGHongqin SHENJianping wangli JIANGMingxue Xi＇anUniversityofArchitectureandTechnology.Xi＇an Shannxi／／LuoyangRefractoryGroupCo.LuoyangHenan LuoyangRefractoryGroupCo. LuoyangHenan Xi＇anUniversityofArchitectureandTechnology.Xi＇an Shannxi／／LuoyangRefractoryGroupCo.LuoyangHenan

Andalusite material and Andalusite based refractory are very popular in Europe and Japan, but its applications are restrained because of its low quality and misunderstanding in China. The paper introduced in detail the characteristics of andalusite material and andalusite based refractory based on the authors’ research work in recent years and on some references. Some information is illustrated clearly by figures and microstructure photographs. It is concluded the property of raw material and refractory is not determined by alumina content but by type and quantity of the impurities and microstructure. Mullitisation provide andalusite based refractories more excellent macro and micro properties that guarantee its popular application.

关键词： Application Andalusite Characteristic Refractory

新型固相萃取器用于污染水样中痕量杀虫剂的浓缩及热解吸气相色谱-质谱分析(英文)

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环境化学 2003年第3期22卷 267-270页

作者： wangli-Li HOSAKAAkihiko WATANABEChuichi 浙江工业大学化学工程学院应用化学系，杭州310014 尖端实验室，福岛963-8862，日本

A novel type of solid phase extraction element named“Magic Chemisorber” is developed for sorptive enrichment of dilute analytes from aqueous samples with high extraction efficiencies due to its capacious layer of sorbent *** extraction element combined with thermal desorption gas chromatography/mass spectrometry using a pyrolysis GC/MS system was applied to extract the pesticides from water samples over a concentration range of 10 -3 to 10 3 μg·l -1 .The method showed good li nearity for the tested concentration range with regression coefficients of 0 995 for over 5 *** of detection at a sub ng·l -1 (ppt)level were achieved and the reproducibility of the measurements was found to be fairly good,with relative standard deviation below 8%.

关键词：固相萃取器污染水样痕量分析杀虫剂浓缩热解吸气相色谱质谱

Deposition Technology and Microhardness of Electrochemical Deposited Ni- W Alloy Nanocrystalline

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材料热处理学报 2004年第05B期25卷 1279-1282页

作者： WUYu-cheng SHUXia wangli-ping HUXiao-ye WANGWen-fang HUANGXin-min FacultyofMaterialsScienceandEngineeringHefeiUniversityofTechnology 230009HefeiP.R.China

In this paper, a perpendicular experiment was conducted by using 4 key process parameters, such as concentration of sodium tungstate, current density, PH value and operating temperature, which have obvious influence on the electrodeposition of Ni-W alloy nanocrystalline. By extreme difference analysis, the influence of multi-factors on the deposition rate and microhardness and surface quality of the nanocrystalline alloy coatings was studied in detail. By further contrastive experiment, the influence of single-factor on the electrodeposition of Ni-W alloy nanocrystalline was also discussed, which will provide basis for the preparation of Ni-W alloy nanocrystalline.

关键词：显微硬度电泳沉积 Ni-W合金毫微结晶

Research Progress on Production of Podophyllotoxin from Sinopodophyllum hexandrum

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Forestry Studies in China 2004年第1期6卷 48-53页

作者： LiuHaijun XuYan SuGuoqing LiChunyan wangli LiuYujun CollegeofBiologicalSciencesandBiotechnology BeijingForestryUniversityBeijing100083P.R.China CollegeofLandscapeArchitecture BeijingForestryUniversityBeijing100083P.R.China ForestryDepartment TibetAgricultureandAnimalHusbandryCollegeLinzhi860000P.R.China

Podophyllotoxin is isolated mainly from the rhizomes of Podophyllum plants, and serves as the main precursor for synthesis of anticancer drugs, such as VP-16 and VM-26. VP-16 and VM-26 are used for curing lung cancer, testicular cancer, neuroblastoma, hepatoma and other tumors. However, these plants are all near-extinction species due to over-collection and their own biological characteristics. The chemical synthesis of podophyllotoxin is so complicated that its price is unbelievably high. This paper discusses the current status of the biosynthetic pathway of podophyllotoxin and that of the podophyllotoxin production using several biotechnological approaches such as plant organ cultures, plant cell cultures with both flasks and bioreactors, hairy root cultures, bioconversions and metabolic regulations.

关键词： podophyllotoxin Sinopodophyllum hexandrum plant cell culture hairy root culture biosynthesis

Expert Diagnosing System for a Rotation Mechanism Based on a Neural Network

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International Journal of Plant Engineering and Management 2002年第3期7卷 163-169页

作者： LIUGui－li wangli－peng 等 ShenyangUniversityofTechnology Shenyang110023P.R.China

By combining the artificial neural network with the rule reasoning expert system, an expert diagnosing system for a rotation mechanism was established. This expert system takes advantage of both a neural network and a rule reasoning expert system; it can also make use of all kinds of knowledge in the repository to diagnose the fault with the positive and negative mixing reasoning mode. The binary system was adopted to denote all kinds of fault in a rotation mechanism. The neural networks were trained with a random parallel algorithm (Alopex). The expert system overcomes the self learning difficulty of the rule reasoning expert system and the shortcoming of poor system control of the neural network. The expert system developed in this paper has powerful diagnosing ability.

关键词： fault diagnosis expert system repository rotation mechanism neural network

Study in Soybean Yield Forecast Application Based on Hopfield ANN Model

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Journal of Northeast Agricultural University(English Edition) 2004年第2期11卷 176-178页

作者： wangli-shu QIGuo-qiang WANGKe-fei EngineeringCollege NortheastAgriculturalUniversityHarbinHeilongjiang150030PRC JilinBusinessHigherVocationalSchool ChangchunJilin130000PRC

Using the artificial nerve network′s knowledge, establish the estimate′s mathematics model of the soybean′s yield, and by the model we can increase accuracy of the soybean yield forecast.

关键词： artificial neutral networks Hopfield soybean yield forecast

Observations and interpretations of geomorphologic features in the Tianwen-1 landing area on Mars by using orbital imagery data

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Earth and Planetary Physics 2023年第3期7卷 331-346页

作者： Hai Huang Xing Wang Yuan Chen Qing Zhang FeiYue Zhao Xin Ren XingGuo Zeng Wei Yan wangli Chen Bin Liu DaWei Liu LianBo Fu JianJun Liu Key Laboratory of Lunar and Deep Space Exploration National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China

China’s first Mars exploration mission,Tianwen-1,successfully landed in southern Utopia Planitia on Mars on May 15,*** work presents a detailed investigation of the geologic context of the landing area surface for this mission based on orbital remotesensing *** constructed a geomorphologic map for the Tianwen-1 landing *** of our detailed geomorphologic map show several major landforms within the landing area,including rampart craters,mesas,troughs,cones,and *** of materials on the landing area surface indicates that most of the landing area is covered by Martian *** aeolian ridges are widely distributed within the landing area,indicating the surface contexts were(and still are)modified by regional *** addition,a crater counting analysis indicates the landing area has an absolute model age of~3.3 Ga and that a later resurfacing event occurred at~1.6 ***,we outline four formational scenarios to test the formation mechanisms for the geomorphologic features on the landing area *** most likely interpretation to explain the existence of the observed surface features can be summarized as follows:A thermal influence may have played an important role in the formation of the surface geomorphologic features;thus,igneous-related processes may have occurred in the landing *** ice may also have been involved in the construction of the primordial surface *** resurfacing events and aeolian processes buried and modified the primordial surface.

关键词： Mars Utopia Planitia Tianwen-1 geomorphologic features water ice heat source

Data-driven Wasserstein distributionally robust optimization for refinery planning under uncertainty

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Data-driven Wasserstein distributionally robust optimization...

Optimization Design of Multi-hole and Varied Diameter Pipe Based on RAGA

第32届中国过程控制会议(CPCC2021)

作者： Jinmin Zhao wangli He Liang Zhao Key Laboratory of Smart Manufacturing in Energy Chemical Process Ministry of EducationEast China University of Science and Technology

1 Introduction This paper addresses the issue of refinery planning under *** problem of refinery production planning has received increasing attention in recent years [1,2].Most models assume that all parameters are ***,the refinery process may be affected by various uncertainties such as product price and market demand.

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Journal of Northeast Agricultural University(English Edition) 2004年第1期11卷 84-86页

作者： wangli-kun WEIYong-xia FUQiang CollegeofWaterConservancyandBuilding NortheastAgriculturalUniversityHarbinHeilongjiang150030PRC

Combining real accelerating genetic algorithm(RAGA) with the optimization design of multi-hole and varied diameter pipe, the authors solved the problem of optimizing multi-dimensional parameters at the same time. In which the advanced convergence and easily to run into partial optimization were avoid. Applied the RAGA to solving the problem in the optimization design of fixed piping sprinkler irrigation system. The optimized parameters, such as diameters and the length of pipe were calculated and the result was reasonable, which provides as a reference to readers who work at related research.

关键词： spray irrigation multi-hole and varied diameter pipes accelerating genetic algorithm optimization design