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reduction of Chilling Injury and Ultrastructural Damage in Cherry Tomato Fruits After Hot Water Treatment

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Agricultural Sciences in china 2009年第3期8卷 304-310页

作者： YANG Jing, FU Mao-run, ZHAO Yu-ying and MAO Lin-chun Department of Food Science and Nutrition, college of Biosystem engineering and Food Science, Zhejiang University, Hangzhou 310029, p.r.china [a]Department of Food Science and Nutrition College of Biosystem Engineering and Food Science Zhejiang University Hangzhou 310029 P.R. China

The effects of hot water treatment in alleviating chilling injury and reducing ultrastructural damage of mature-green cherry tomatoes （Lycopersicun esculentum cv. cerasiform Alef） were investigated. Mature-green cherry tomato fruits were treated in water at 40℃ or 45℃ for 5 min or 15 min, and then stored at 5℃ for 19 days followed by ripening at 20℃. Water treatment at 40℃ for 15 min increased tolerance of cherry tomato fruits to chilling stress, indicating as low outbreak of skin lesion, high color a＊ value, and low electrolyte leakage. Treated fruits showed typical climacteric respiration and developed normal red color with chlorophyll degradation and lycopene accumulation during ripening, while fruits without treatment failed to develop red color and suffered skin lesion. After 19 days of chilling, heated fruits showed the conversion of chloroplast to chromoplast with the disappearance of thylakoids. Mitochondria and other cell organelles were not adversely affected in treated fruits. However, ultrastructures in pericarp cells in control fruits severely damaged with extensive disorganization of cytoplasm, swelled chloroplasts, distorted and unstacked thylakoids. Chloroplast was the first and most severely impacted organelle by chilling stress. Hot water treatment （40℃ for 15 min） before storage alleviated chilling injury in cherry tomato fruits. The results suggest that chilling injury is related with the damage of cell structure under chilling stress.

关键词： cherry tomato chilling injury heat treatment ultrastructure

robotic Etiquette:Socially Acceptable Navigation of Service robots with Human Motion pattern Learning and prediction

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Journal of Bionic engineering 2010年第2期7卷 150-160页

作者： Kun Qian,Xudong Ma,Xianzhong Dai,Fang Fang Key Lab of Measurement and Control of Complex Systems of engineering (Ministry of Education,china), Southeast University,Nanjing 210096,p.r.china [a] Key Lab of Measurement Control of Complex Systems of engineering (Ministry of Education China) Southeast University Nanjing 210096 P. R. China

Nonverbal and noncontact behaviors play a significant role in allowing service robots to structure their interactions *** this paper, a novel human-mimic mechanism of robot’s navigational skills was proposed for developing sociallyacceptable robotic *** on the sociological and physiological concerns of interpersonal interactions in movement,several criteria in navigation were represented by constraints and incorporated into a unified probabilistic cost grid for safemotion planning and control, followed by an emphasis on the prediction of the human’s movement for adjusting the robot’spre-collision navigational *** human motion prediction utilizes a clustering-based algorithm for modeling humans’indoor motion patterns as well as the combination of the long-term and short-term tendency prediction that takes into accountthe uncertainties of both velocity and heading *** simulation and real-world experiments verified the effectivenessand reliability of the method to ensure human’s safety and comfort in navigation.A statistical user trials study was also given tovalidate the users’favorable views of the human-friendly navigational behavior.

关键词： robotic etiquette navigation human motion prediction human-robot interaction service robot

A Brief Introduction to Fibrewise Topological Spaces Theory

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Journal of Mathematical research with Applications 2012年第5期32卷 626-630页

作者： Baolin GUO,Yingzhao HAN college of Information engineering,Dalian University,Liaoning 116622,p.r.china college of Information engineering Dalian University Liaoning 116622

Fibrewise topological spaces theory,presented in the recent 20 years,is a new branch of mathematics developed on the basis of General Topology,Algebra topology and Fibrewise spaces *** is associated with differential geometry,Lie groups and dynamical systems *** the perspective of Category theory,it is in the higher category of general topological space,so the discussion of new properties and characteristics of the variety of fibre topological space has more important *** paper introduces the process of the origin and development of Fibrewise topological spaces ***,we study the main contents and important results in this ***,we review the research status of Fibrewise topological spaces theory and some important topics.

关键词： Fibrewise topology Fibrewise topological spaces Fibrewise topological mapping spaces Absolute(nbd) fibrewise retract Fibrewise category.

AGC-ASC Synthetic Neural Net Control System in rolling process

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International Journal of Minerals,Metallurgy and Materials 1998年第2期12卷 108-112页

作者： Zhongsuo Shi Yuan Li Yikang Sun Information engineering School, UST Beijing, Beijing 100083, china Information engineering School UST Beijing Beijing 100083 China

Automation Gauge Control(AGC) and Automatic Shape Control(ASC) are coupling each other. The coupling models of AGC-ASC synthetic system for the thickness-crown have been established and two artificial neural networks controllers are given. The simulation of computer shows that the AGC-ASC synthetic system can obtain the expected thickness and shape precision with both schemes.

关键词： neural network neural net controller AGC-ASC synthetic system

FUZZY OpTIMAL DECISIONS FOr MULTIOBJECTIVE FLOOD CONTrOL SYSTEM OF CASCADE rESErVOIrS

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Journal of Hydrodynamics 1999年第3期11卷 6-13页

作者： Cheng Chun tian Civil engineering Department, Dalian University of Technology,Dalian 116023, p.r.china (received June 13,1998)

Based on the practice of reservoir operation, a decision making model of multi objective flood control of cascade reservoir system is presented, which is realistic and effective, combining traditional optimal techniques with fuzzy set theory. In the present paper, the operation alternative is chosen as the decision variable, the outflow process as the state variable, and optimal operation decisions are determined by the fuzzy optimal technique. Finally, the model is delineated by taking a case study of comprehensive flood operation for a cascade reservoir system.

关键词： multiobjective flood control multireservoir flood control fuzzy optimal decision recursion matrix

A Sound Quality Objective Evaluation Method Based on Auditory peripheral Simulation Model

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Journal of Bionic engineering 2010年第2期7卷 199-208页

作者： Yinhan Gao~1,Jun Xie~2,Jie Liang~1,Xin Chang~3,Baojun Wu~2 1.Experimental Centre of Testing Science,Jilin University,Changchun 130022,p.r.china 2.college of Instrumentation & Electrical engineering,Jilin University,Changchun 130061,p.r.china 3.Laboratory of Applications and Computations in Electromagnetics and Optics,Department of Electrical engineering, University of Washington,WA 98195-2500,USA [a] Experimental Centre of Testing Science Jilin University Changchun 130022 P. R. China [b] College of Instrumentation & Electrical Engineering Jilin University Changchun 130061 P. R. China [c] Laboratory of Applications Computations in Electromagnetics Optics Department of Electrical Engineering University of Washington WA 98195-2500 USA

Based on auditory peripheral simulation model, a new Sound Quality Objective Evaluation (SQOE) method is presented,which can be used to model and analyze the impacts of head, shoulder and other parts of human body on sound wave *** method employs the artificial head technique, in which the head related transfer function was taken into account tothe outer ear simulation ***, a bionic artificial head was designed as the outer ear model with considering the outersound field in view of theory and physical *** the auditory peripheral simulation model was built, which mimicsthe physiological functions of the human hearing, simulating the acoustic signal transfer process and conversion mechanismsfrom the free field to the peripheral auditory ***, performance comparison was made between the proposed SQOEmethod and ArtemiS software, and the verifications of subjective and objective related analysis were *** show thatthe proposed method was economical, simple, and with good evaluation quality.

关键词： sound quality objective evaluation auditory peripheral simulation model artificial head head related transfer function

NUMErICAL SIMULATION OF SLOSHING IN rECTANGULAr TANK WITH VOF BASED ON UNSTrUCTUrED GrIDS

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Journal of Hydrodynamics 2010年第6期22卷 856-864页

作者： MING ping-jian DUAN Wen-yang college of power and Energy engineering Harbin Engineering University Harbin 150001 China college of Shipbuilding engineering Harbin Engineering University Harbin 150001 China

A new method for sloshing simulation in a sway tank is present, in which the two phase interface is treated as a physical discontinuity, which can be captured by a well-designed high order scheme. Based on Normalized Variable Diagram （NVD）, a high order discretization scheme with unstructured grids is realized, together with a numerical method for free surface flow with a fixed grid. This method is implemented in an in-house code General Transport Equation Analyzer （ GTEA ） which is an unstructured grids finite volume solver. The present method is first validated by available analytical solutions. A simulation for a 2-D rectangular tank at different excitation frequencies of the sway is carried out. A comparison with experimental data in literature and results obtained by commercial software CFX shows that the sloshing load on the monitor points agrees well with the experimental data, with the same grids, and the present method gives better results on the secondary peak. It is shown that the present method can simulate the free surface overturning and breakup phenomena.

关键词： sloshing numerical simulation unstructured grid Volume Of Fluid (VOF)

The Micro/Nanostructure Characteristics and the Mechanical properties of Hemifusus tuba Conch Shell

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Journal of Bionic engineering 2010年第4期7卷 3+308-313页

作者： Yan Liang~1,Jie Zhao~2,Chengwei Wu~1 1.State Key Laboratory of Structural Analysis for Industrial Equipment,Department of engineering Mechanics,Dalian University of Technology,Dalian 116024,p.r.china 2.School of Materials Science and engineering,Dalian University of Technology,Dalian 116024,p.r.china [a] State Key Laboratory of Structural Analysis for Industrial Equipment Department of Engineering Mechanics Dalian University of Technology Dalian 116024 P. R. China [b] School of Materials Science engineering Dalian University of Technology Dalian 116024 P. R. China

The mollusk shell mobilizes calcium from environment for skeletal *** occurs through synthesizing solidsin solution in the presence of organic molecules of specific interior regions of the conch *** ultrastructure and microhardnessof the Hemifusus tuba conch shell living in the Huang/Bo sea area are investigated in the *** is shown that thecomposition and microstructure of the mollusk shell vary in different *** prodissoconch shell consists only of aragonitewith the crossed-lamellar *** the spiral shell and the body shell of the Hemifusus tuba conch shell arecomposed of one calcite layer and several aragonite *** calcite layer consists of cylindrical grains,but the aragonitelayers are crossed-lamellar ultrastructure at three size *** minimum structure size (the third-order lamella) is at about20 nm - 80 *** margin of shell aperture is only composed of calcite with cylindrical *** natural optimization of theshell microstructure is intimately due to the growth of the Organic *** different positions the microhardness of molluscshell is different due to different crystal structures and crystal *** growth process of shells allows a constantrenewal of the material,thus enabling their functional adaptation to external environments.

关键词： conch shell microstructure aragonite calcite crossed-lamellar

Characteristics of rice plant with Heavy panicle

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Journal of Integrative Agriculture 2006年第12期5卷 911-918页

作者： MA Jun1, 2, MA Wen-bo3, MING Dong-feng4, YANG Shi-ming1, 2 and ZHU Qing-sen5 1 rice research Institute, Sichuan Agricultural University, Wenjiang 611130, p.r.china 2 Key Laboratory of Southwest Crop Genetic resources and Improvement, Ministry of Education/Sichuan Agricultural University, Yaan 625014, p.r.china 3 Zaozhuang Agriculture Bureau, Shandong province, Zaozhuang 277160, p.r.china 4 Zaozhuang Teacher college, Zaozhuang 277160, p.r.china 5 college of Agronomy, Yangzhou University, Yangzhou 225009, p.r.china [a]rice research Institute Sichuan Agricultural University Wenjiang 611130 P.R.China[b]Key Laboratory of Southwest Crop Genetic Resources and Improvement Ministry of Education/Sichuan Agricultural University Yaan 625014 P.R.China[c]Zaozhuang Agriculture Bureau Shandong Province Zaozhuang 277160 P.R.China[d]Zaozhuang Teacher College Zaozhuang 277160 P.R.China[e]College of Agronomy Yangzhou University Yangzhou 225009 P.R.China

Using 15 indica rice varieties with different panicle weight, some ideal plant type characteristics in heavy panicle type of hybrid rice (HpT) and their relation to yield and its components were studied. results showed that the leaf area index (LAI) of the HpT varieties was lower than that of medium panicle type (MpT) and light panicle type (LpT) varieties, but its decreasing rate of LAI and efficient LAI after heading was slower and had much higher percentage of efficient LAI, specific leaf weight, and ratio of grain to leaf area (cm2) in comparison with the MpT and the LpT varieties. The length, width, thickness, and area of top three leaves of the HpT varieties were significantly larger than those of the MpT and the LpT varieties, and these components of top three leaves were significantly and positively correlated with the number of spikelets and filled grains, grain weight per panicle, and grain yield. The flag leaf in HpT varieties was erect with sorrow leaf angle, and their leaf angle of 2nd and 3rd leaf from top increased in sequence. The plant height of the HpT varieties was higher than that of the MpT and the LpT varieties, and their leaf site of top three leaves also increased in sequence. Therefore, HpT varieties as an ideal plant type could increase the utilization efficiency of sunlight energy. The ideal plant type characteristics and their adjuncts for the HpT varieties are proposed in this article.

关键词： heavy panicle type rice plant type characteristics