http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
H. Azizi Namaghi,A. Haghighi Asl,M. Pourafshari Chenar 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.31 No.-
This study seeks to address the influence of critical variables including casting thickness, polysulfone(PSf) concentration, m-phenylenediamine soaking time, curing time, curing temperature and interfacialpolymerization (IP) time in the preparation of thin film composite (TFC) membrane. To properly track theeffects of each parameter as well as their interactions on the performance of manufactured membranes,totally 22 experiments were conducted and evaluated by fractional factorial design (FFD). The resultsshowed that due to the complexity of variables, the preliminary models based on the factorialexperiments were not able to explain the response curvature. Therefore, a response surface methodology(RSM) based on Box–Behnken design (BBD) was tested to provide a quadratic model, by which thepredicted responses were compared with the experimental ones. By the use of RSM, various contour andthree-dimensional (3D) plots were constructed to predict optimal levels of the variables. All consideredparameters have shown a significant effect on the performance of TFC membrane. The order ofsignificance for permeate flux and rejection rate was ‘‘curing temperature > polysulfone concentra-tion > interfacial polymerization’’ and ‘‘interfacial polymerization > curing temperature > polysulfoneconcentration’’, respectively. The predicted values were in reasonable agreement with the experimentaldata, confirming the high predictability of the applied model.
Nutritive Value of Wheat Straw Treated with Pleurotus Fungi
Fazaeli, H.,Mahmodzadeh, H.,Azizi, A.,Jelan, Z.A.,Liang, J.B.,Rouzbehan, Y.,Osman, A. Asian Australasian Association of Animal Productio 2004 Animal Bioscience Vol.17 No.12
Soaked and pasteurised wheat straw was inoculated with five species of Pleurotus fungi (coded P-21, P-30, P-41, P-60 and P-90), packed in polyethylene bags and incubated in a fermentation chamber for 21 days. The chemical composition, in vitro digestibility and in sacco degradability of the treated and untreated straw were estimated using a complete randomised design consisting of six treatments and four replicates. In a feeding trial, in vivo digestibility and voluntary intake were determined in bulls, using a $3{\times}3$change over design. Dietary treatments were: 1) untreated wheat straw (UWS) as control; 2) fungal treated (P-41) wheat straw before mushroom formation (FTWS); 3) spent wheat straw (SPWS) after mushrooms were harvested. Apart from P-90, fungal treatment significantly (p<0.05) increased the crude protein (CP) and reduced the cell wall components of the straw. The in vitro dry mater and organic mater digestibility significantly (p<0.05) increased in the treated straw particularly with the treatments of P-41 and P-60. The in situ degradability and in vivo digestibility of DM and OM were significantly (p<0.05) increased in treated straws with the highest values observed for treatment P-41. The intake of DM, OM and digestible organic mater (DOM) were significantly (p<0.05) increased in cows fed FTWS.
Structural performance of precast foamed concrete sandwich panel subjected to axial load
Y. H. Mugahed Amran,Raizal S. M. Rashid,Farzad Hejazi,A. A. Abang Ali,Nor Azizi Safiee,Sani Mohammed Bida 대한토목학회 2018 KSCE JOURNAL OF CIVIL ENGINEERING Vol.22 No.4
In this paper, experimental and simple analytical studies on the structural behavior of Precast Foamed Concrete Sandwich Panel(PFCSP) were reported. Full-scale tests on six PFCSP panels varying in thickness were performed under axial load applications. Axial load-bearing capacity, load-deflection profiles, load-strain relationships, slenderness ratio, load-displacement, load-deformation,typical modes of failure and cracking patterns under constantly increasing axial loads were discussed. Nonlinear Finite ElementAnalysis (FEA) using LUSAS software to investigate the structural behavior of PFCSP was contacted. The computed ultimatestrength values using American Concrete Institute equation (ACI318) and other empirical formulas developed by perviousresearchers which applicable to predict the ultimate strength capacity of sandwich panels were compared with the experimental testresults and FEA data obtained; therefore, very conservative values resulted, a significant agreement with the FEA data that presenteda high degree of accuracy with experiments and an increase in slenderness function.
Sharif, H .,Azizi, A . 호남수학회 1999 호남수학학술지 Vol.21 No.1
The height of a prime submodule and a module version of the Krull dimension are studied.
Effect of Fungal Treated Wheat Straw on the Diet of Lactating Cows
Fazaeli, H.,Jelan, Z.A.,Mahmodzadeh, H.,Liang, J.B.,Azizi, A.,Osman, A. Asian Australasian Association of Animal Productio 2002 Animal Bioscience Vol.15 No.11
This study was conducted to investigate the effects of diets that contained different levels of fungal treated wheat straw on the intake, digestibility and performance of lactating cows. Eight primiparous Holstein cows, in late lactation ranging from $170{\pm}10$ days in milk and yielding $14.3{\pm}1.3$ kg/d of fat corrected milk (FCM) were allocated into four diets with 0, 10, 20 and 30% fungal (Pleurotus ostreatus coded P-41) treated wheat straw in a $4{\times}4$ Latin Square experiment. The daily intake of DM, OM, DOM, CP and TDN were not affected by substitution of alfalfa hay with fungal treated wheat straw. Inclusion of the treated straw at different levels in the diet did not affect the digestibility of nutrients, except for the ADF that was significantly (p<0.05) reduced in the diet contained 30% treated straw. The types of the diet did not significantly affect daily milk and FCM production. The milk composition including fat, protein, lactose, solid non-fat (SNF) and total solid (TS) were not statistically (p>0.05) different among the diets. All cows gained weight, but the inclusion of treated straw to the diet significantly (p<0.05) increased the body weight gain and the highest amount was obtained in the diet containing 20% treated. Inclusion of fungal treated wheat straw up to 30% of the diet of lactating cows supplemented with a protein source such as cottonseed meal had not affected the nutrients intake and lactation performance.
Utilization of Fungal Treated Wheat Straw in the Diet of Late Lactating Cow
Fazaeli, H.,Mahmodzadeh, H.,Jelan, Z.A.,Rouzbehan, Y.,Liang, J.B.,Azizi, A. Asian Australasian Association of Animal Productio 2004 Animal Bioscience Vol.17 No.4
Eight primiparous Holstein cows, in late lactation (255$\pm$10 days in milk) and yielding 10.3$\pm$1.3 kg/d of 4% fat corrected milk (FCM) were allocated into two groups randomly. Two diets containing 30% wheat straw either untreated (UWS) or treated with Pleurotus ostreatus (FTWS) were offered as total mixed ration (TMR). In vivo digestibility of the diets was determined, using acid insoluble ash as a marker. Daily milk production was recorded and milk samples were collected and analysed. Diet FTWS resulted in significantly (p<0.05) higher dry matter intake (DMI) (12.2$\pm$0.86 vs. 10.6$\pm$1.3), DM digestibility (58.8 vs. 52.3) and milk yield (9 vs. 7.5 kg). Milk fat contents were 34.2 and 35.6 g/liter that did not differ between cows fed treated or untreated straw. However, the concentrations of lactose, solid non fat, total solids and milk protein for diets UWS and FTWS were 57.3 and 54.9, 98.9 and 93.2, 134.5 and 127.4, 35.7 and 32.3 g/l, respectively, which differed significantly (p<0.05). The average body weights gain (BWG) for UWS and FTWS were 272 and 743 g/d, respectively (p<0.05). The FCM yield per kg of DMI was similar (0.68 and 0.67 liter) for the two groups, but BWG/kgDMI was higher in the FTWS diet.
Numerical study of laminar-forced convection of Al2O3 -water nanofluids between two parallel plates
M. Hemmat Esfe,A. A. Abbasian Arani,T. Azizi,S. H. Mousavi,S. Wongwises 대한기계학회 2017 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.31 No.2
Laminar-forced convection of Al 2 O 3 -water nanofluid between two parallel plates was studied numerically. The channel walls were assumed to be isothermal. The effective viscosity and thermal conductivity of nanofluid were considered as variables, and the effects of applying a variable properties model were investigatedby using two relatively new models. The numerical results were compared to the results obtained from a previous non-variable properties model. Also, the effects of nanoparticle size on the flow and heat transfer within the channel were investigated. The study was carried out using Reynolds numbers between 100-1000, nanoparticle diameters in the 15-75 nm range, and nanoparticle volume fractions in the range 0.01-0.05 nm. The numerical results show that using nanofluid could enhance heat transfer by up to 35 %, compared to the base fluid. In addition, reducing the nanoparticle diameter can enhance heat transfer by up to 15.9 %.
M. Tahamouli Roudsari,F. Abdollahi,H. Salimi,S. Azizi,A. R. Khosravi 한국강구조학회 2015 International Journal of Steel Structures Vol.15 No.4
Reduced Beam Section (RBS) connections are a new type of connection which have been used in steel moment-resisting frames since the 1994 Northridge earthquake. This study is primarily aimed at analyzing the effects of suitable web stiffeners on preventing the deterioration effect of the hysteresis curve for RBS connections. Results of more than 183 nonlinear finite element analyses on different IPE sections with radius cut, straight cut, and drilled-flange RBS connection showed that different web stiffeners considerably contribute to the enhancement of seismic performance of RBS connections. In this research, the effects of factors such as the geometry and the number of the stiffeners, the distance between the stiffener and column side, and the length and thickness of the stiffener on the seismic performance of RBS connections were also studied.