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Structural optimization of deflector within air-water direct contact tank based on uniform design

Energy and Built Environment 2022年第2期3卷 190-200页

作者： Ning Wang Meng Yu Writing-review&editing Xuejun Zhang Yang Zhao Institution of Refrigeration and Cryogenics China Key Laboratory of Refrigeration and Cryogenic Technology of Zhejiang Province Zhejiang UniversityHangzhou 310027China

An appropriate microenvironment for preserving cultural relics is essential,and the air-water direct contact tech-nology is utilized to create the microenvironment *** influence of a deflector in a tank was numerically investigated based on uniform design method to improve the heat and mass transfer and pressure drop perfor-mance of the air-water direct *** this study,a simplified CFD-based model was established and validated between airstream and water surface within the tank,to analyze the heat and mass transfer and pressure drop ***,regression models of the heat transfers rate,mass transfer rate and pressure drop were developed by uniform design method based on three parameters:installation position,tilt angle,and height of the deflector,in order to analyze the influences of these three parameters on the heat and mass transfer and pressure drop of the ***,all three optimal structural parameters of the deflector were obtained based on the proposed comprehensive evaluation index using a genetic *** results showed that the model established for air-water direct contact adopted well to predict the heat and mass transfer and pressure drop per-formance between airstream and still water ***,the results found that the flow field inside the water tank was affected by the deflector’s structure,which affected the heat and mass transfer *** simulation results suggested that the deflector’s optimal structural parameters are 8 mm of installation position,88°of tilt angle and 19 mm of height,respectively,within a given extent in this study.

关键词： Display case Heat and mass transfer Pressure drop Structural optimization uniform design

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A study of arc stability of basic electrode in view of uniform design method

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China Welding 2007年第3期16卷 32-35页

作者：孟工戈金龙浩杨拓宇 School of Material Science & Engineering Harbin University of Science and Technology Anhui Science and Technology University

In order to develop a basic electrode with low fume and good usability, a uew slag system has been designed after analyzing several basic electrode slag systems. Then in view of uniform design method, arranging the experiment points by it, the influenced laws of the uew system coating compouents on the arc stability had been searched. In the formula, niue coating compouents were taken as independent variables and they were divided into six levels in all twenty-four experiments. The arc stability was taken as function and taken down the data when welding and then put them into the computer to be processed statistically. The analysis results give the mathematical model and trend diagrams between independent variables and the function. They indicate that the effects of many coating compouents on the arc stability are in the mutual form. The mutual effects between CaCO3 and BaF2, BaF2 and BaCO3 , increases the arc stability separately. While the mutual effects between CaF2 and iron powder, the square item of iron powder itself decreases the arc stability separately.

关键词： basic electrode arc stability uniform design

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The　Complex　System　Modeling　Method　Based　on　uniform　design　and　Neural　Network

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Journal of Systems Engineering and Electronics 1996年第4期7卷 27-36页

作者： Zhang Yong(Beijing Simulation Center, P.O.Box 142-23, Beijing 100854, P.R. China) Beijing Simulation Center P.O. Box 142-23 Beijing 100854 P.R. China

In this paper, the method based on uniform design and neural network is proposed to model the complex system. In order to express the system characteristics all round, uniform design method is used to choose the modeling samples and obtain the overall information of the system;for the purpose of modeling the system or its characteristics, the artificial neural network is used to construct the model. Experiment indicates that this method can model the complex system effectively.

关键词： Modeling method uniform design Neural network Complex system Simulation.

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Optimization of Callus Induction Medium for Schisandga chinensis Baill via uniform design

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Agricultural Science & Technology 2011年第1期12卷 141-143页

作者：张佳金东淳金海林刘权刚延边大学农学院吉林延吉133002

[Objective]This study was to optimize callus induction medium for Schisandga chinensis Baill.[Method]Using callus induction rate as an indicator,uniform design was employed to optimize hormone combination at poly-factors and poly-levels for callus induction from Schisandga chinensis Baill.[Results]Optimal hormone combinations depended on different explants：optimum medium for both tender leaf and petiole was MS ＋3 mg/L 6-BA,for stem segment was MS ＋3 mg/L 6-BA ＋0.6 mg/L NAA.[Conclusion]uniform design is a time-saving and convenient method for the optimum medium for callus and yields a higher callus induction rate.

关键词： Schisandga chinensis Baill Callus tissue uniform design Callus induction rate

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Optimizing Yanbian Cow Oocytes Mature in vitro and Cleavage System after Nuclear Transfer Based on uniform design

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Agricultural Science & Technology 2009年第5期10卷 113-115页

作者：苗婷婷魏世宝通化师范学院生物系吉林通化134002 通化县动物卫生监督所吉林通化134100

[Objective] The aim was to optimize Yanbian cow oocytes mature in vitro and cleavage system after nuclear transfer based on uniform design. [Method] Oocytes were recovered by aspiration method, and oocytes were matured in vitro （IVM） with different conditions, and then carried out nucleus transfer, fusion, activation and in vitro culture （IVC） of embryo. Effects of ovary storage temperature, maturation time and follicular diameter size on in vitro maturation and cleavage rates of cow oocytes were compared. [ Result] The best conditions of IVM of Yanbian cow oocytes was that： the oocytes of 8 mm diameter were matured in vitro for 24 hours when the ovaries were stored at 26℃ or 31 ℃. The best cleave conditions after nucleus transfer of oocytes was that： the oocytes of 6 mm or 8 mm diameter were cultured in vitro for 24 hours when the ovaries were stored at 26℃. [ Conclusion] The result has some reference to Yanbian cow and other cow breeding and population expanding propagation.

关键词： uniform design Yanbian cow Oocytes Mature Cleavage

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Application of uniform design and SVR for Culture Medium Optimization of Organophosphorus Degradation Bacteria

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Agricultural Science & Technology 2018年第6期19卷 43-47页

作者： TAN Xian-sheng ZHU Xiong-mei ZHOU Yu-liang LI Wei-wei LIU Li-na HU Jun-he JIN Chen-zhong LI Wen-juan Farmland Weed Prevention and Control Technology and Application-innovation Center of Hunan Province Hunan Institute ofHumanities Science and Technology Pesticide Harmless Application Key Laboratory of Provincial College Loudi 417000 PRC College of Agriculture and Biotechnology Hunan University of Humanities Science and Technology Loudi 417000 PRC

In order to improve the degradation activity of organophosphorus degradation bacterial strains, uniform design and support vector regression(SVR) are used to optimize the formula of mineral salt medium for the strains based on single factor experiment. The formula being used after SVR optimization is glucose 1.24 g/L,NH4 NO3 0.73 g, KH2 PO4 0.96 g, KCl 0.50 g, MgSO4·7 H2 O 0.50 g, MnSO4 0.02 g, CaCl2 0.04 g, distilled water 1 000 mL;the highest degradation rate is obtained at pH7.0(SVR, 76.68%), superior to that of the QSAR model(74.67%). The formula optimization method based on uniform design and SVR is very promising to apply in various multiple-factor and multiple-level formula optimization experiments.

关键词： Organophosphorus degradation bacteria uniform design Support Vector Regression(SVR) Formula optimization

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Optimizing Efficient Micropropagation System of Rhododendron Brachycarpum D. Don by uniform design Method

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Agricultural Science & Technology 2009年第5期10卷 49-51页

作者：姜云天陈艳秋顾地周李玉梅曲柏宏通化师范学院生物系吉林通化134002 延边大学农学院园艺系吉林龙井133400 吉林师范大学吉林四平136000

[Objective] The study was conducted to establish a high efficient micropropagation system for Rhododendron Brachycarpum D. Don and realize the high efficiency in vitro micropropagation of R. brachycarpum. [ Method ] Young stems of R. brachycarpum were used as explants, suitable medium compositions for axillary bud growing and rooting were screened through uniform design exPeriments. [ Result] MS （modified）＋ IAA 0,15 mg/ L ＋ IBA 0.30 mg/L ＋ GA3 3.00 mg/L was the most suitable medium with the regeneration rate of 92%. Stems each with one node were cut from regenerated shoots and cultured for propagation, the proliferative multiple was over 45 within one culture period of 35 d. [ Conclusion] High efficient micropropagation system of R. brachycarpum has been successfully established, which provides some basis for development and utilization and industrial seedling growth of the alpine rhododendron in Changbai Mountain northeast China.

关键词： Rhododendron Brachycarpum D. Don Micropropagation uniform design

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Optimization Chemical Composition of the Blast Furnace Slag with uniform design

Optimization Chemical Composition of the Blast Furnace Slag ...

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中国材料大会2012

作者： Hui Wang Suping Cui Xiaolong Shang The College of Materials Science and Engineering Beijing University of Technology

ISBN: (纸本)9783037856062;3037856068

Using the industrial limestone, fly ash and pure chemical reagents as raw materials, the blast furnace slag was prepared in the simulation condition of the actual slag-making process. Using uniform design method, the influence of blast furnace slag composition factors such as quaternary alkalinity, ratio of CaO/MgO and ratio of SiO2 /Al2O3 on the glass content of blast furnace slag were studied in the present in investigation, the relationship between glass content and the various factors has been obtained through regression analysis, and the main influence factors and the optimum blast furnace slag compositions been found out. The results showed that, the impact of various factors on the glass content of granulated blast furnace slag was quaternary alkalinity ＞ ratio of SiO2 /Al2O3 ＞ ratio of CaO/MgO. According to the significance test of the regression equation and the verification experiment, it was concluded that the optimum compositions of granulated blast furnace slag were: the quaternary alkalinity was 0.85, the ratios of CaO/MgO and SiO2 /Al2O3 were 11.5 and 6.5 respectively, and in this condition, the glass content of granulated blast furnace slag reached to 98.47%.

关键词： uniform design Blast furnace slag composition Regression analysis Glass content

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Computer aided optimum design of friction materials using uniform design

Computer aided optimum design of friction materials using un...

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2010 Second International Conference on Computational Intelligence and Natural Computing (CINC 2010)

作者： Hua Fu Institute of Materials Science and Engineering Shijiazhuang Tiedao University 050043 Shijiazhuang China Li Fu Institute of information Science and Engineering Hebei University of Science and Technology Shijiazhuang China Guang-Lei Zhang Institute of Materials Science and Engineering Shijiazhuang Tiedao University 050043 Shijiazhuang China Ai-ping Liu Polytechnic College of Hebei University of Science and Technology Shijiazhuang China

The application of uniform design in friction material formulation and a multi-layer back propagation artificial neural network （BPANN） methods of Data Handling are investigated for modeling and prediction of the wear properties of composites. The friction and wear properties show that uniform design can distribute the experiment points evenly so as to have fewer number of tests. With computer aided artificial neural network （ANN） modeling and optimization technology, the relationships between factors and properties can be predicted.

关键词： uniform design artificial neural network (ANN) composite prediction

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Optimizing the Callus induction protocol of Catharanthus roseus by uniform design and Proliferation

Optimizing the Callus induction protocol of Catharanthus ros...

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2009中国植物学会植物细胞生物学学术年会

作者： WU Chun-lian~(1*),FAN Jian-ming~2,YANG Jun~1,CHEN Wei-ying~1,SUN Min~3 1.School of Life Sciences,China West Normal University,Nanchong,Sichuan province 637002,China 2.The Laboratory of Toxicology,College of Public Health,Zhengzhou University, Zhengzhou 450001,China 3.School of Life Science,Southwest University,Chongqing 400715,China

Catharanthus roseus(L.) *** is one of the most extensively investigated medicinal plants and is known mainly for its pharmacologically important indole *** leaves of Catharanthus roseus which were used as *** parameters,two hormones and Vitamin C(Vc),with four concentrations,were designed for callus induction of Catharanthus roseus by uniform design(UD),and 8 experiments were *** results showed that MS medium with 2.0 mg·L 6-BA,1.0 mg·L 2,4-D and 20 mg·L Vc was the optimum medium for callus induction(100%).The optimum proliferation medium was MS+6-BA O.5 mg·L+2,4-D 0.5 mg·L+20 mg·L *** results indicated UD could be used to optimize conditions for callus induction of Catharanthus *** could inhibit browning of callus induction of Catharanthus roseus.

关键词： Catharanthus Roseus optimum culture medium uniform design callus induction

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