effect of processing conditions
A CFD analysis on the effect of ambient conditions on the hygro-thermal stresses distribution in a planar ambient airbreathing PEM fuel cell
... self-humidifying effects of passive fuel cells are balanced by the transfer of heat and water to the ambient Optimal performance of air-breathing cells is therefore a complex function of ambient and load conditions ... local conditions of temperature and humidity As a result of in the changes in temperature and moisture, the membrane, GDL and bipolar plates will all experience expansion and contraction Because of ... The development of physically representative models that allow reliable simulation of the processes under realistic conditions is essential to the development and optimization of fuel cells, improve...
- 16
- 727
- 0
The effect of annealing conditions on the red photoluminescence of nanocrystalline Si/SiO films
... Therefore, the main role of hydrogen here is the effective passivation of nonradiative recombination centers 3.4 The effect of annealing times upon 400 8C annealing Fig The dependence of the peak energy ... of hydrogen that have been suggested are: (1) the passivation of dangling bonds w25–27x; (2) as one of the components of the luminescence centers w11,29x; and (3) responsible for the change of ... report here the effects of annealing conditions on the PL approximately 1.75 eV (in the third stage) 177 Fig The peak energy as a function of FG annealing times at annealing temperatures of (a) 200,...
- 10
- 578
- 0
effect of processing parameters on pore structure and thickness of anodic
... burning potential of the porous anodic alumina films in sulfuric acid and then increased with the aging of solutions after a long period of anodization Self-ordering regime of nanoporous AAO was ... pass into one end (inner) of the pore would only come out from the other end (outer) of the pore without diffusing out from the middle of the pore-tunnel The relationship of membrane thickness and ... concentration of the electrolyte, as can be seen from the interpore distance values of the AAO membranes yielded from different concentration of sulfuric acid at 12.5 V 5.3 Thickness Fig The variation of...
- 7
- 1,227
- 5
Effect of cultural conditions on production of cellulases in trichoderma longibrachiatum
... Act ion of cellulas e fr om fungus of marine ori gin in rice straw In dian Journal of Mic robiology 17, 194- 197· D 'S OUZA, J & VOLFOVA, O (1982) The effect of pH on the production of cellu ... lase product ivity of Eupenicillium jauanicum J ourna l of Fermentat ion T echnology 58, 149-154 T ANIGUCHI, M , TANAKA, M , MATSUNO, R & KAMIKUBO, T (1980) Effect of cu lture conditions on cellulase ... concentrations This may be due to release of high levels of glucose in the culture broth which is a known repressor of cellulase Increasing the concentration of lactose above % did not bring about...
- 8
- 336
- 1
Báo cáo khoa học: "Effect of storage conditions on germination in Touki seeds (A. acutiloba Kitagawa) on the different umbel orders" pptx
... Fig.1 Effects of time after harvesting on germination percentage in Touki seeds (Angelica acutiloba Kitagawa) SE = error bar P: Primary; S: Secondary; T: Tertiary 84 Effect of storage conditions ... days) starting from day ( the day of sowing); ni is the number of seeds that completed germination on day t; and nj is the number of seeds with complete emergence of the seedlings on day t The Tukey ... (P
- 5
- 499
- 0
Báo cáo lâm nghiệp: "Can 13C stable isotope record of Norway spruce tree rings display the effect of environmental conditions" pot
... rings provides a long term record of the effect of environmental conditions Needle analyses might provide information only about the effect of environmental conditions in the current year (Solberg, ... saturation of soils, have remained exposed to the effect of soil acidification after the decline of atmospheric deposition, which can result in the growth depression of trees Growth depression of Norway ... end of the 19th century and at the beginning of the 20th century might be a reaction to the closure of pasturing and timber harvesting (Veselý 1994) in conjunction with the long-term effect of...
- 7
- 413
- 0
Báo cáo lâm nghiệp: "Effect of storage conditions on post planting water status and performance of Pinus radiata D. Don stock-types" doc
... death of 40% of plants planted in wet soils (Fig 6C) and after 15 days at ºC or after days at 10 ºC only 20% of BR seedlings survived The percentage of BR plants that survived in drought conditions ... lowering of internal water status can cause severe injury to roots (Fig 4) The reduction of root water content as a consequence of desiccation of the root system [9] is accompanied by a decrease of ... rate of physiological recovery is dependent on the severity of drought [14] but also on the conditions and duration of preplanting storage; as the storage period is lengthened the rate of water...
- 10
- 293
- 0
Isoflavone levels and the effect of processing on the content of isoflavones during the preparation of soymilk and tofu
... in tofu.………………….…115 5.2 Effect of different coagulants on the physical properties of tofu………… …….…120 5.2.1 Evaluation of yield, moisture and color of tofu………………………… 121 5.2.2 Evaluation of the ... 112 Chapter Effect of different coagulants on the isoflavone levels and physical properties of firm tofu………………………………………………………………………….… 114 5.1 Effect of different coagulants on the isoflavone levels ... results of isoflavone analysis…………………………………… 94 Chapter Effect of extraction methods and UHT treatment conditions on the level of isoflavones during soymilk manufacture.……………………………………………… 98 4.1 Isoflavone...
- 200
- 335
- 0
Biomass fueling of a SOFC by integrated gasifier: Study of the effect of operating conditions on system performance
... terms of species molar fractions Table e Comparison of the 0-D SOFC model (current work) with a literature available [21] 1-D SOFC model in terms of power density [W/m2] as a function of temperature ... reported in Fig 5, where the effect of the variation of SOFC H2 utilization has been added It may be observed that, as a general trend, the lower SOFC H2 utilization operating conditions have to be ... exploitation of the SOFC off-gas that is evident by the analysis of Fig 6, where dHint is reported as a function of SOFC H2 utilization and MC dHint represents the amount of the offgases enthalpy that...
- 8
- 410
- 0
Biomass gasification in a downdraft gasifier with a twostage air supply: Effect of operating conditions on gas quality
... rate of 20 Æ 0.45 Nm3/h and an AR of 80% a fuel gas with a CO content of 19.2 Æ 0.36% v, CO2 of 14.22 Æ 0.19%v H2 of 17, 14 Æ 0.13%v, CH4 of 1.3 Æ 0.07% v, tar of 54.25 Æ 0.66 mg/Nm3, particles of ... on time of the temperature profile of the gasifier for AR of 0% and total airflow of 20 Nm3/h 240 b i o m a s s a n d b i o e n e r g y ( ) e2 4 easy to understand the difficulties of data replication ... different values of AR, (0%, 40% and 80%) Table shows the average concentrations of CO, CH4 and H2 as well as the LHV of the gas Figs and show the effects of the total flow of air and AR on the...
- 9
- 247
- 0
Catalytic Steam Gasification of Biomass Surrogates: Thermodynamics and Effect of Operating Conditions
... Steam Gasification of Biomass Surrogates: Thermodynamics and Effect of Operating Conditions Jahirul Mazumder and Hugo I de Lasa* Chemical Reactor Engineering Centre, Department of Chemical and Biochemical ... Figure 9: Profiles of (a) dry gas yield, (b) carbon conversion, (c) tar yield (wt% of biomass) and (d) coke yield (% of carbon injected); with the temperature from steam gasification of 2-methoxy-4-methylphenol ... C + H ←→ CH -74.52 (8) Steam Reforming of Methane standard heat of reaction at 298K were calculated from the standard heat of formation The development of an efficient steam gasification process...
- 41
- 304
- 0
Tài liệu Báo cáo "Effect of the preparation conditions on the properties of Fe-Pt nanoparticles produced by sonoelectrodeposition " pptx
... has the potential benefit of combining sonochemistry with electrochemistry Some of these beneficial effects include acceleration of mass transport, cleaning and degassing of the electrode surface, ... the current was turned off for a fixed duration toff of 0.5 s During ton, FePt nanoparticles were deposited on the surface of the electrode When the current was switched off, an ultrasound was ... magnetization of the unannealed particles was about few emu/g and the coercivity was 20 – 80 Oe The low value of Ms of the as-prepared nanoparticles may be explained by the oxidation or hydroxidation of...
- 7
- 513
- 0
Tài liệu Báo cáo khoa học: Effect of sequence polymorphism and drug resistance on two HIV-1 Gag processing sites pdf
... Antiviral Program of the Office of the Director of NIH and by AIDS FIRCA Grant TW01001 The contents of this publication not necessarily reflect the views or policies of the Department of Health and ... models of the P1¢ residue of peptides 7, 10, 11 and 14 (Table 4) are shown occupying the S1¢ binding site of wild-type HIV-1 PR suggest that the maximization of the van der Waals interactions of ... P2 Ala to Val mutation, without the appearance of P3 Arg mutation [10] In these mutants the positive effect of P3 Arg is offset due to the loss of favorable hydrophobic interaction with the smaller...
- 7
- 480
- 0
Effect of raw material and processing factors
... and Pham: Effects on the Production of Effervescent Artichoke Tea Tablets of 10, 20 and 30% The ability of spray-drying and sensory properties of artichoke powder were evaluated Effect of effervescent ... at concentration of 10% The ability of spraydrying, sensory properties and weight of artichoke powder were determined Effect of artichoke extract concentration 170 mL samples of extract prepared ... and investigate the effects of raw material composition, additives and processing conditions From these results, process conditions will be recommended for the optimization of extract concentration,...
- 17
- 680
- 0
Effect of sludge processing mode, soil texture and soil ph on metal mobility in undisturbed soil columns
... as of the end of Cycle Statistical testing of the signi®cance of observed eects was limited by the substantial interaction of independent variables (sludge treatments with soil pH) In view of ... was the result of a number of factors, including crop, temperatures of greenhouse and ventilation air, humidity and amount of supplemental lighting, all of which aected the rate of transpiration ... goal of the present study was to use 90 undisturbed soil columns to determine the eects of sludgeprocessing mode, initial soil pH and soil texture on the short- and long-term mobility of metals...
- 20
- 489
- 0
Báo cáo khoa học: Dual effect of echinomycin on hypoxia-inducible factor-1 activity under normoxic and hypoxic conditions docx
... Echinomycin concentration (nM) Absorbance A Dual effect of echinomycin on HIF-1 activity *** N Conditions N + E 5nM H H + E 5nM Conditions H+ EA320nM Fig Effect of echinomycin on HIF-1 activity HepG2 and ... hypoxic conditions in HepG2 cells, its effects are not specific to this transcription factor, as activator protein-1 (AP-1) and c-myc activities are also affected Moreover, a dual effect of this ... at nm under normoxic conditions Similar results were obtained in HeLa cells (Fig 1B) To investigate the effects of echinomycin on endogenous gene expression, mRNA expression of two HIF-1 target...
- 10
- 341
- 0
Báo cáo lâm nghiệp: "Effect of initial height of seedlings on the growth of planting material of Norway spruce (Picea abies [L.] Karst.) in mountain conditions" ppsx
... nurseries may pose a risk of impoverishment of the natural spectrum of individuals well adapted to extreme conditions of mountain localities When growing the planting material of spruce from the mountain ... characteristics of four-year plants In 1994 the above-described planting material was set out in a model mountain area of the Krkonoše Mts on the slope of Stoh Mt at a height of 1,000 to 1,100 ... growth of the sorted planting material of Norway spruce (Picea abies [L.] Karst.) in the course of 11 years after planting to a mountain locality large 2002 2004 2006 Fig Diameter growth of the...
- 7
- 343
- 0
Báo cáo lâm nghiệp:"Net effect of competing vegetation on selected environmental conditions and performance of four spruce seedling stock sizes after eight years in Québec (Canada)" ppsx
... competing vegetation effects by means of competition – free seedlings, instead of release treatments The objectives of this study were first, to quantify the net effect of non-crop vegetation ... a half of each plot; within each of these subplots, four rows were laid out and assigned at random to one of the four sizes of seedlings Within each row or sub-subplot, seven seedlings of a given ... quantity of light (% PAR) reaching the mid-upper crown of seedlings with competition at site was analyzed using an ANOVA after angular transformation of the data To evaluate the effect of the release...
- 9
- 292
- 0
Báo cáo lâm nghiệp: "Argan (Argania spinosa (L.) Skeels) seed germination under nursery conditions: Effect of cold storage, gibberellic acid and mother-tree genotype" docx
... possible synergetic effect of GA and cold in the case of argan seed germination From the results of this study, dormancy can be broken using GA or cold storage, but the presence of GA appears to ... explore treatments effects in a three way analysis of variance where cold storage, GA treatment and replication are crossed factors [17] The LSD test (α = 5%) of equality of means was used to ... storage of the seeds for long periods decreased losses to seed fungi-contamination or to pre-emergence seedling dumping-off 3.2 Mother-tree genotype effect Mother-tree genotype main effect was...
- 4
- 412
- 0
báo cáo khoa học: "Anti-oxidant effect of gold nanoparticles restrains hyperglycemic conditions in diabetic mice" ppt
... the anti-oxidative effect of traditional gold in treatment of diseases, have affirmed the urge for the need of study over restorative effect of gold nanoparticles at conditions of, hyperglycemia ... hyperglycemic conditions may lead to excessive leakage of these enzymes in the blood stream Thus the effect of gold nanoparticles over the level of different metabolic enzymes shaping the effective ... disruptions Figure Protective effect of gold nanoparticles over hyperglycemia induced damage in pancreas of diabetic mice Histological sections of pancreas of experimental group of mice after treatment...
- 15
- 303
- 0
Tìm thêm: xác định các mục tiêu của chương trình xác định các nguyên tắc biên soạn khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn khảo sát chương trình đào tạo gắn với các giáo trình cụ thể xác định thời lượng học về mặt lí thuyết và thực tế tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra đối với đối tượng giảng viên và đối tượng quản lí điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu nội dung cụ thể cho từng kĩ năng ở từng cấp độ mở máy động cơ lồng sóc hệ số công suất cosp fi p2 đặc tuyến hiệu suất h fi p2 động cơ điện không đồng bộ một pha sự cần thiết phải đầu tư xây dựng nhà máy thông tin liên lạc và các dịch vụ phần 3 giới thiệu nguyên liệu từ bảng 3 1 ta thấy ngoài hai thành phần chủ yếu và chiếm tỷ lệ cao nhất là tinh bột và cacbonhydrat trong hạt gạo tẻ còn chứa đường cellulose hemicellulose chỉ tiêu chất lượng 9 tr 25