bi objective optimization of a mtbe reactive distillation column
Performance optimization of a PEM hydrogen-oxygen fuel cell
... Electroanal Chem 1998;251(2):275295 [15] Sampath Yerramalla, Asad Davari, Ali Feliachi and Tamal Biswas, Modeling and simulation of the dynamic behavior of a polymer electrolyte membrane fuel ... (kg/mol) Pa , Pc total pressure of anode and cathode, respectively (atm) * * PH , PO2 partial pressure of hydrogen and oxygen at the anode catalyst / gas interface and cathode catalyst / gas interface, ... construct a mathematical model for investigating the performance of a PEM fuel cell at different operation variables to optimize its performance by changing some of its parameters Model validation against...
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Finite time exergoeconomic performance optimization of a thermoacoustic heat engine
... transfer coefficient and F2 is the total heat transfer surface area of the cold-side heat exchanger Here the & &′ imaginary part n2 of n indicates the relaxation of a heat transfer process Defining ... / F1 and FT = F1 + F2 Here, the total heat transfer surface area FT of the two heat exchangers is assumed to be a constant (3) There is a constant rate of heat leakage ( q ) from the heat source ... efficiency of a traveling wave heat engine J Acoust.Soc Am., 1982, 7(3): 1239-1243 [3] Yazaki T, Iwata A, mackawa T and Tominaga A Traveling wave thermoacoustic engine in a looped tube Phys Rev Lett.,...
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Constructal complex objective optimization of electromagnets based on maximization of magnetic induction and minimization of entransy dissipation rate
... define a thermal potential and a variational invariant The thermal potential plays a role analogous to the potential energy while the variational invariant is related to the concept of dissipation ... entransy of an object in a capacitor describes its heat transfer ability, as the electrical energy in a capacitor describes its charge transfer ability Entransy dissipation occurs during heat transfer ... S, Campo A, Nouraza S S Valuable reconsideration in the constructal design of cavities Energy Conversion and Management, 2013, 66: 33–40 [32] Hajmohammadi M R, Campo A, Nourazar S S, Ostad A M...
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Modeling, simulation and multi objective optimization of industrial, low density polyethylene reactor
... free-radical catalyst and contains long-chain branches (LCB) Linear PE is made with a transition metal catalyst and copolymerization of ethylene with an alpha-olefin and contains no long-chain branching ... Raju Gupta, Lee Nick, Yelneedi Sreenivas, Mekapati Srinivas, N V S Murthy Konda, M K Saravanan, Ankur Dhanik, Manish Mishra, Naveen Bhutani, Bhupendra Singh, Lokesh B Thiagarajan, G Sundar, Ashok ... (c) variation of Mn along the reactor axis at different times, and (d) variation of Mn at the reactor exit 135 Figure 6.3 Transient data for a step increase in FI,2: (a) variation of T along...
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Modelling, simulation and multi objective optimization of industrial hydrocrackers
... again (Gates et al., 1979) The metal catalyzed reactions and the elementary acid catalyzed reactions for hydrocracking of alkanes and cycloalkanes are shown in Figure 1.2 Hydrocracking uses dual ... air oxidation of formic acid, acetic acid and ethanol Baldi et al (1985) Oxidation of sulphurdioxide Mata and Smith (1981) Biochemical reactions and fermentations Bailey and Ollis (1986) In a ... NOMENCLATURE a, , aj parameter in Peng-Robinson equation of state (EOS) aij parameter in Peng-Robinson equation of state (EOS) A parameter in Peng-Robinson EOS, [-]; Frequency factor, volume of feed/volume...
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A markovian approach to the analysis and optimization of a portfolio of credit card accounts
... “good” given his application characteristics and the probability of a cardholder being “bad” given his application characteristics, to be a linear combination of the characteristic variables Let x ... methods of evaluating the risk of credit card applications In particular, credit scoring aims to discriminate applicants that are likely to be “good” and profitable cardholders from applicants that are ... greater than his probability of being “bad” One should postulate a prior class of distributions for the conditional probabilities p(x|good), p(x|bad) of a cardholder having application characteristics...
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SIMULATION AND MULTI OBJECTIVE OPTIMIZATION OF COLD END SEPARATION PROCESS OF AN ETHYLENE PLANT
... Latest infrastructure and innovative events around the campus had a very positive impact on me and it gave me enthusiasm to work hard as well as smart I was a part of lot of extra-curricular activities ... Mark Saeys, A/ Prof Saif A Khan, A/ Prof Rajagopalan Srinivasan, and A/ Prof D Y Lee I would like to acknowledge the NUS administration, including ChBE Department staff and Registrar’s office for functioning ... subset of professional ethics and vow to maintain for life is punctuality It was all the more a great pleasure to learn from my coursework modules by Prof Karimi, A/ Prof Laksh, A/ Prof Mark Saeys, A/ Prof...
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Optimization of a window frame by BEM and genetic algorithm
... introduction of new materials and additional layers of thermal insulation Because of the new regulations in national and international standards, the admissible value of the heat losses of the walls has ... http://www.emeraldinsight.com/0961-5539.htm Optimization of a window frame by BEM and genetic algorithm Optimization of a window frame 565 Małgorzata Kro´l Department of Heat Supply, Ventilation and Dust Removal Technology, Silesian ... previous example The moment of inertia has been kept constant at the level of 2.12 cm4 A constant value for the surface area has been taken as in the previous Optimization of a example, namely 1.17...
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Optimization of long term performance of municipal solid waste management system a bi objective mathematical model
... Alcada-Almeida et al [11] investigate a multi criteria approach for locating incineration plant in Portugal The tradeoff among overall system cost, total impact, maximum average impact and impact to ... interest includes mathematical modeling and optimization as well as their applications in design and manufacture management, digital integrated manufacturing, and lean production E-mail address: lishiyun@zjut.edu.cn ... (11) and (14) regulate the input waste amount equals to the waste quantity processed at treatment plant and disposal facility in each period In addition, the numerical values of all the parameters...
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Báo cáo hóa học: " Research Article Hybrid Method for a Class of Stochastic Bi-Criteria Optimization Problems" docx
... objective achieve its maximal value Next, taking into account that the expectation value represents the average level and the variance indicates the deviation of the stochastic variable, the stochastic ... Germany, 2003 12 Journal of Inequalities and Applications M J Pardo and D de la Fuente, “Design of a fuzzy finite capacity queuing model based on the degree of customer satisfaction: analysis and ... inequality constraint, which is used to guarantee that the stochastic constraint is satisfied with a probability as higher as possible.For the Journal of Inequalities and Applications general stochastic...
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Báo cáo y học: "Optimization of 5-fluorouracil solid-lipid nanoparticles: a preliminary study to treat colon cancer"
... Doxorubicin-loaded PLGA nanoparticles by nanoprecipitation: preparation, characterization and in vitro evaluation Nanomedicine 2007; 2: 219-232 Kukowska-Latallo JF, Candido KA, Cao Z, et al Nanoparticle targeting ... concentration of the stabilizer (PVA) It is clear that a ratio of 2:1 soyalicithin: Dynasan and a high lipid ratio in the nanoparticles are important factors for getting smaller particle size The PVA concentration ... obtained from BDH Laboratories (Poole, England) All other reagents and chemicals were of analytical grade Preparation of solid lipid nanoparticles Weighed amounts of soyalecithin and Dynasan were dissolved...
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Optimization of design and operating parameters on the year round performance of a multi-stage evacuated solar desalination system using transient mathematical analysis
... variation of global solar radiation and ambient temperature at Chennai for January to June _ Solar radiation -Ambient temperature Figure Mean monthly hourly variation of global solar radiation ... temperature from the flat plate collectors, latent heat and refined latent heat of vaporization of water from each stage and specific heat capacity of water from each stage are averaged over the day ... Each evaporator and condenser tray has an area of 1m2 inclined at an angle of 16o (a) (b) Figure Coupling of Multi-stage evacuated solar desalination system to flat plate collectors; (a) Parallel...
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Optimization of injection timing and injection pressure of a DI diesel engine fueled with preheated rice bran oil
... southern Asia, and it is a staple food for a large part of the world’s human population especially in east, south and south-east Asia, making it the most consumed cereal grain Rice bran oil is extracted ... 349 Deepak Agarwal, Avinash Kumar Agarwal, Performance and emissions characteristics of Jatropha oil (preheated and blends) in a direct injection compression ignition engine, Applied Thermal Engineering ... Kumar M, Ramesh A, Nagalingam B, An experimental comparison of methods to use methonal and jatropha oil in a compression ignition engine, Biomass and Bioenergy 25 (2003): 309 – 318 Avinash Kumar...
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Exergoeconomic optimization and improvement of a cogeneration system modeled in a process simulator using direct search and evolutionary methods
... exergoeconomic analysis of the system at each iteration and on several qualitative and quantitative objective criteria, a hierarchical classification of the system components, and the associated subsets of ... mathematical optimization Table Results obtained with the genetic algorithm Decision variable Case Case EIS EIS Alternative Alternative Mathematical EIS optimization Alternative EIS Alternative Mathematical ... Nelder and Mead A global analysis of Tables and reveals an important outcome: the method of Powell systematically leads to the smallest values of the objective function and of the number of simulator...
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Tài liệu tiếng anh Điện tử công suất mạch MERS Loss and rating consideration of a wind energy conversion system with reactive compensation by magnetic energy recovery switch
... higher than for the MERS case The influence of actual switch characteristics and thermal capability has been investigated An average peak junction temperature of 125°C and 80°C heat sink temperature ... Ryuichi Shimada, Jan A Wiik, Takanori Isobe, Taku Takaku, Noriyuki Iwamuro, Yoshiyuki Uchida, Marta Molinas, and Tore M Undeland A new ac current switch called mers with low on-state voltage igbts ... measurement and estimation of MERS system and diode bridge with cancellation of full voltage drop across synchronous reactance (b) Measured characteristics of low on-state voltage IGBT compared...
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Tài liệu Báo cáo khoa học: Involvement of two positively charged residues of Chlamydomonas reinhardtii glyceraldehyde-3-phosphate dehydrogenase in the assembly process of a bi-enzyme complex involved in CO2 assimilation doc
... PsativumA SoleraceaA 197 Chlamy 200 Synechocystis 198 Synechococcus 199 R R R R R R R R R R R R R R R R R R R R A A A A A A A A A A R R R R R R R R R R A A A A A A A A A A A A A A A A A A A A A ... T T T T T G G G G G G G G G G A A A A A A A A A A A A A A A A A A A A K K K K K K K K K K A A A A A A A A A A V V V V V V V V V V S S S S A A A S A A L L L L L L L L L L V V V V V V V V V V L ... N A A A A A A A A A A S S S S S S S S S S C C C C C C C C C C T T T T T T T T T T T T T T T T T T T T N N N N N N N N N N AthalianaB 159 PativumB 159 SoleraceaB 159 159 NtabacumB A. thalianaA...
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Báo cáo khoa học: "Efficient Optimization of an MDL-Inspired Objective Function for Unsupervised Part-of-Speech Tagging" docx
... then ran MAP-EM again on the test data with these hyperparameters and achieved a tagging accuracy of 87.4% (see Table 1) This is higher than the 85.2% that Goldwater and Griffiths (2007) obtain using ... data and achieve better accuracies than (Goldwater and Griffiths, 2007) We have also shown that the objective function correlates well with tagging accu- R Andreani, E G Birgin, J M Martnez, and ... treebank to a categorical grammar treebank for italian In Eighth International Workshop on Treebanks and Linguistic Theories (TLT8) D Chiang, J Graehl, K Knight, A Pauls, and S Ravi 2010 Bayesian...
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Báo cáo khoa học: Optimization of D-amino acid oxidase for low substrate concentrations – towards a cancer enzyme therapy pdf
... oxidation state via its absorbance at 455 nm [21,23] and at pH 8.5 and 15 °C (A) Wild-type DAAO or m-DAAO at 8.6 lM, O2 at 305 lM and D-Ala at 0.6 mM The symbols are the experimental data points ... such as those reported in (A) tive half-reaction obtained for Q144R-DAAO are identical to those of wt-DAAO, a detailed kinetic investigation of this mutant DAAO was not carried out As with wt-DAAO ... wt-DAAO and m-DAAO Thus, the same kinetic model derived for wt-DAAO [21] applies for m-DAAO, and the values of k2, k5 and Kd,app are similar (Table 2) The absolute values of the substrate-binding...
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Bí mật của một trí nhớ siêu phàm Secrets of a Super Memory Eran Katz
... trí hai thứ mà sau hai sai có ngh a bạn điểm Tổng số điểm kiểm tra 40) Bài kiểm tra số Danh sách mục sau đánh số từ đến 20 Nhiệm vụ bạn nhớ danh sách d a vào thuộc tính số học, ngh a là, bi t ... McDonaladino .6294813 S a ch a ôtô Travolta & Son .7295431 Studio tóc Kojak 4917322 Bác sĩ Dan DeVito, khoa Da liễu 6291133 Taxi “R a buồn ngủ” 5234444 Bác sĩ Mickey Mousulu, khoa Nhi ... Motorola, IBM, Oracle, Microsoft, Nokia, General Electric, Coca-Cola,… Eran Katz tác giả hai sách bán chạy Israel:Secrets of a Super Memory Jerome Becomes a Genius Hai sách dịch nhiều thứ tiếng giới...
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Báo cáo hóa học: " Objective assessment of motor fatigue in multiple sclerosis using kinematic gait analysis: a pilot study" docx
... and standard deviations for each parameter and time interval were calculated for each patient and used for further analysis Significant changes in the mean and standard deviations of these parameters ... variability and was defined as · indexmean + indexvariability Nsignificant mean changes Nsigificant SD changes + Ngait parameters Ngait parameters indexfatigue = = · where Nsignificant_mean_changes ... design and evaluation of treatment and rehabilitation programs aimed at improving symptoms and for evaluating a patient’s ability to perform occupational tasks Author details Division of Sport...
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