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| 1 | Obstructive jaundice in Iran:factors affecting early outcome显示文摘BACKGROUND:Understanding any factors which influence the morbidity and mortality in patients with obstructive jaundice in each society will better guide appropriate management and lead to improved survival This study aimed to assess baseline etiologies,clinical manifestations,diagnostic results,and morbidity and mortality related to obstructive jaundice in Iranian patients. METHODS:The hospital recorded files of 133 patients with the final diagnosis of obstructive jaundice who had been admitted to the Taleqhani Hospital in Tehran between January 2001 and September 2004 were reviewed. RESULTS:The most common etiologies of obstructive jaundices were neoplasia and then common bile duct stone in the two genders.The results of ultrasonography were positive in less than half of the patients.However,the most positive results were related to endoscopic retrograde cholangiopancreatography(ERCP).The in-hospital mortality rate in patients less than 50 years old and elderly patients was 0%and 6.76%,respectively.The in-hospital morbidity rate was 2.25%and 7.51%,respectively in both patients and it was commonly related to infection of ulcer (44.46%),pneumonia(14.75%),myocardial infarction (14.75%),and subdiaphragmatic abscess(11.29%).In patients with a diagnosis of benign obstruction,only one patient died of severe sepsis.In malignant group preoperative characteristics,such as weight loss(P=0.015) and serum bilirubin concentration more than 16 mg/dl and postoperative complications,such as sepsis(P<0.001) cardiac arrest(P<0.001),and hepatic coma(P<0.001)were main predictors for the in-hospital mortality rate.CONCLUSION:Although the mortality and morbidity of obstructive jaundice in our study are less than those in other studies,the determination of preoperative clinical and laboratory indices and postoperative complications of patients is needed for the control of mortality and morbidity rate. | Mehrdad Moghimi Seyed Ali Marashi Mohammad Taghi Salehian Mehrdad Sheikhvatan | 2008 | Hepatobiliary & Pancreatic Diseases International2008，7，5： | 9 |
| 2 | Mineralogical and sink-float studies of Jajarm low-grade bauxite显示文摘Jajarm's bauxite deposits are mainly diasporic,and they have a low mass ratio of Al2O3/SiO2. It is necessary to increase the run-of-mine mass ratio before feeding the material to the Bayer process. Chemical analysis indicated that the low-grade bauxite sample from Jajarm contained 43.9wt% Al2O3 and 13.35wt% SiO2, resulting in a mass ratio of 3.29. According to mineralogical studies, the presence of aluminosilicate minerals such as kaolinite, illite, and quartz was the main reason for the decrease of the mass ratio. Microscopic observations revealed that, with the size reduction from -1000+710 to -38 μm, the liberation degree of diaspore increased from 10% to 60%, and that of aluminosilicates increased from 20% to 85%. Heavy liquids with the densities of 2.8, 3.0, 3.2, and 3.4 g/cm3 were used to evaluate the heavy media separation in three sizes, i.e., -3350+710, -710+212, and -212+125 μm. Laboratory studies confirm that the density of 3.2 g/cm3 can produce the concentrates (in sunk fractions) with recoveries of 89.09%, 91.24%, and 84.68% with the Al2O3/SiO2 mass ratios of 5.03, 5.16, and 5.15 for the ?3350+710, ?710+212, and ?212+125 μm sizes, respectively. | Mohammad Zarbayani Esmaeil Jorjani Mirsaleh Mirmohammadi Mohammad Taghi Shadloo Mohammad Noaparast | 2010 | International Journal of Minerals,Metallurgy and Materials2010，17，3： | 8 |
| 3 | LaZn_xFe_(1-x)O_3钙钛矿型纳米催化剂的制备、表征及其甲苯燃烧性能(英文)显示文摘Nanostructured LaFeO3 and substituted LaZnxFe1-xO3(x = 0.01,0.05,0.1,0.2,and 0.3) perovskites were synthesized by the sol-gel auto-combustion method and used in the catalytic combustion of toluene.Their structures and surface properties were investigated by X-ray diffraction,Fourier transmission infrared spectroscopy,BET surface area,and scanning electron microscopy.Characterization data revealed that the total insertion of zinc into LaFeO3 takes place when x ≤ 0.1.However,ZnO segregation occurs to some extent,especially at x > 0.1.The performance of these perovskites was evaluated by toluene combustion.The catalytic activity of the catalysts increased substantially with an increase in zinc substitution.These results can be attributed to the cooperative effect between LaZnxFe1-xO3 and the zinc oxide phases.The relative concentration of these phases determines their oxygen activation ability and reactivity. | Seyed Ali HOSSEINI Mohammad Taghi SADEGHI Abdolali ALEMI Aligholi NIAEI Dariush SALARI Leila KAFI-AHMADI | 2010 | 催化学报2010，31，7： | 7 |
| 4 | 采用不同吸附剂从铜电解液中除锑(英文)显示文摘采用不同吸附剂,如活性炭、膨润土、高岭土、树脂、沸石和白沙从铜电解液中去除Sb(Ⅴ),得到不同吸附剂从铜电解液中去除锑(Ⅴ)的吸附容量顺序为:白沙(27)阴离子型树脂(27)沸石(27)高岭土(27)活性炭(27)膨润土。利用FTIR、XRF、XRD、SEM和BET等手段对膨润土进行表征。结果表明:膨润土的比表面积为95 m^2/g,粒度为175 nm;最大去除锑(Ⅴ)的最佳条件为接触时间10 min、4 g膨润土和温度40°C;膨润土吸附锑(Ⅴ)遵守伪二级动力学方程(R^2=0.996,k=9×10^(-5) g/(mg·min))。热力学结果显示,膨润土从铜电解液中吸附锑(Ⅴ)是吸热和自发的过程(ΔG~Θ=-4806 kJ/(mol·K),吸附数据与Freundlich和Langmuir等温线模型吻合。在铜电解液中膨润土具有最大的吸附锑(Ⅴ)容量为10000 mg/g,对于铜电解液中的Zn,Co,Cu和Bi的吸附很低且影响不大。 | Katereh SALARI Saeedeh HASHEMIAN Mohammad Taghi BAEI | 2017 | Transactions of Nonferrous Metals Society of China2017，27，2： | 7 |
| 5 | Serum γ-glutamyltransferase,alanine aminotransferase,and aspartate aminotransferase activity in Iranian healthy blood donor men显示文摘AIM: To determine serum γ-glutamyltransferase (GGT), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) activity, and to assess their correlation with demographic and clinical findings in healthy blood donors. METHODS: This cross-sectional study was performed in 934 male blood donors, aged 18 to 68 years, who consecutively attended Tehran blood transfusion service in 2006. All participants were seronegative for HBV or HCV infections, non alcohol users, and all underwent a standard interview and anthropometric tests. Clinical and biochemical parameters including AST, ALT, and GGT activities were determined. Patients taking drugs known to cause hepatic fat deposition were excluded. For AST, ALT, and GGT variables, we used 33.33 and 66.66 percentiles, so that each of them was divided into three tertiles. RESULTS: Mean AST, ALT, and GGT activities were 25.26 ± 12.58 U/L (normal range 5-35 U/L), 33.13 ± 22.98 (normal range 5-35 U/L), and 25.11 ± 18.32 (normal range 6-37 U/L), respectively. By univariate analyses, there were significant associations between increasing AST, ALT, or GGT tertiles and age, body weight, body mass index, and waist and hip circumferences (P < 0.05). By multiple linear regression analyses, ALT was found to be positively correlated with dyslipidemia (B = 6.988, P = 0.038), whereas ALT and AST were negatively correlated with age. AST, ALT, and GGT levels had positive correlation with family history of liver disease (B = 15.763, P < 0.001), (B = 32.345, P < 0.001), (B =24.415, P < 0.001), respectively.CONCLUSION: Although we did not determine the cutoffs of the upper normal limits for AST, ALT, and GGT levels, we would suggest screening asymptomatic patients with dyslipidemia and also subjects with a family history of liver disease. | Hossein Khedmat Farahnaz Fallahian Hassan Abolghasemi Bashir Hajibeigi Zohre Attarchi Farshid Alaeddini Mohammad Taghi Holisaz Masoumeh Pourali Shahin Sharifi Nasrin Zarei | 2007 | World Journal of Gastroenterology2007，13，6： | 7 |
| 6 | Prevalence of malaria infection in Sarbaz,Sistan and Bluchistan province显示文摘Objective:To survey malaria prevalence in Sarbaz from April 2009 to October 2010.Methods: Epidemiological data of 1 464 confirmed malarial patients were analyzed according to demographic status,sex,age,nationality,isolated species and residence place.Results:The majority of patients were male 930(64.8%) but 514(35.2%) were female.82.5%of patients were Iranian,14%Pakistani immigrants,and 3.5%Afghan immigrants.Data collected showed that 90% of isolated species were Plasmodium vivax,7.8%Plasmodium falciparum,and 2.2%Plasmodium malariae and mixed species.Conclusions:Therefore,it is crystal clear that refugees should be prohibited by government and controlled by experts in health centers in order to campaign effectively with this life threating disease. | Youssefi Mohammad Reza Rahimi Mohammad Taghi | 2011 | Asian Pacific Journal of Tropical Biomedicine2011，1，6： | 6 |
| 7 | Fatal motorcycle accidents in Fars Province, Iran: a com- munity-based survey显示文摘ObjectiveTo 在 Fars 省识别摩托车事故的牺牲品的主要特征, Iran.MethodsThis 代表性的学习在从 2009 年 3 月在伊朗有所有 31 个省的第四张最大的人口到 2010 年 6 月的 Fars 省被进行。我们从所有 542 的 includeddata 由于机动车辆事故记录了死亡的盒子。数据从由人口统计、事故相关的信息组成的法庭的药登记被记录。人口统计的信息由名字,年龄,性别,致命的牺牲品(摩托车驱动程序对旅客) 的地位和 2 345 尸体从法庭的药档案记录的教育 level.ResultsOf 组成了,(23.1%) 542 作为机动车辆事故给了死亡的原因。这些牺牲品的吝啬的年龄是(31.4 ±16.5 ) 年,和男性到女比率是 28。头损害是在这些牺牲品的死亡的最普通的原因,并且总的来说,他们趋于有教育的底层。摩托车事故经常包含了更年轻的年龄组(15-35 年) ,并且与一顶头盔的弃权联系的头损伤是 death.ConclusionsHead 损害的最普通的原因在在我们学习了的省的牺牲品之中是经常的。这种状况可能与 victims’ 有关关于交通法律与他们的弱实施一起导致加速和这些法律的不顾的低社会经济的地位和很少教育。 | Seyed Taghi Heydari Najmeh Maharlouei Aft Foroutan Yaser Sarikhani Fariborz Ghaffarpasand Arya Hedjazi Mohammad Zarenezhad Ghasem Moafian Mohammad Reza Aghabeigi Payam Peymani Seyed Mehdi Ahmadi Maryam Dehghankhalili Hassan Joulaei Kamran B. Lankarani | 2012 | Chinese Journal of Traumatology2012，15，4： | 6 |
| 8 | Complementary and alternative medicine use in Iranian patients with diabetes mellitus显示文摘OBJECTIVE: There is increasing interest in complementary and alternative medicine generally, and especially by those affected by chronic diseases, such as diabetes mellitus. We aimed to determine the prevalence and pattern of complementary and alternative medicine use among patients suffering from diabetes mellitus in Shiraz, southern Iran. Another objective was to explore associated factors for use of complementary and alternative medicine among patients with diabetes mellitus.METHODS: A 19-item semi-structured questionnaire(open- and close-ended) was administered to 239 patients with diabetes mellitus in this cross-sectional study. It was carried out in two outpatient diabetes clinics affiliated with the Shiraz University of Medical Sciences, Shiraz, Iran.RESULTS: One hundred and eighty patients(75.3%) used at least one type of complementary and alternative medicine in the last year prior to the interview. Patients with diabetes mellitus who were living in a large family(≥ 5 members), not taking insulin, and believed that complementary and alternative medicine have synergistic effects with conventional medicine, were independently and significantly(P values: 0.02, 0.04, and 0.01, respectively) more likely to use complementary and alternative medicine. Most of the users(97.7%) reported use of herbal preparations, and 89.4% of users did not change their medication, neither in medication schedule nor its dosage.CONCLUSION: The use of complementary and alternative medicine, especially herbal remedies, is popular among diabetes patients in Shiraz, Iran. This use is associated with patients' family size, type of conventional medications and their view about concomitant use of complementary and conventional medicine. | Mohammad Hashem Hashempur Mojtaba Heydari Seyed Hamdollah Mosavat Seyyed Taghi Heydari Mesbah Shams | 2015 | Journal of Integrative Medicine2015，13，5： | 5 |
| 9 | Epidemiological characteristics of fatal pedestrian ac- cidents in Fars Province of Iran: a community-based survey显示文摘ObjectiveTo 决定在 Iran.MethodsThis 代表性的学习的 Fars 省的致命的步行事故的流行病学的特征从 2009 年 3 月在一个 29 月的时期期间在伊朗的 Fars 省被进行到 2011 年 7 月。数据从 Fars 法庭的药登记。在 4 923 记录道路交通事故死亡, 971 死亡由于步行事故。人口统计、事故相关的信息被社会科学统计套装软体版本 11.5 分析。不到 0.05 被认为死者的 significant.ResultsThe 平均数年龄的 P 价值是(47.2 ±26.2 ) 年,从 6 个月到 103 岁。男性们说明了 69.8% 所有死亡。致命的事故在 9 月是很普通的;56.1% 致命的损害发生在 intracity 道路上并且 33.1% 在 extracity 道路上。致命的头损害在 60.54% 盒子中是在场的。损害地点的评估和死亡的原因发现他们显著地与年龄被联系,在损害和死亡之间的间隔。而且,道路的类型在 mortality.ConclusionAlthough 起了一个重要作用损伤病人的临床的管理在最近的十年在我们的国家被改进了,减少损害的负担在损伤系统组织之中需要协作。 | Payam Peymani Seyed Taghi Heydari Amin Hoseinzadeh Yaser Safikhani Arya Hedjazi Mohammad Zarenezhad Ghasem Moafian Mohammad Reza Aghabeigi Najmeh Maharlouei All Foroutan Seyed Mehdi Ahmadi FariborzGhaffarpasand Hassan Joulaei Kamran B Lankarani | 2012 | Chinese Journal of Traumatology2012，15，5： | 5 |
| 10 | Analytical modeling of static behavior of electrostatically actuatednano/micromirrors considering van der Waals forces显示文摘In this paper,the effect of van der Waals(vdW)force on the pull-in behavior of electrostatically actuatednano/micromirrors is investigated.First,the minimum potential energy principle is utilized to find the equation governing the static behavior of nano/micromirror under electrostatic and vdW forces.Then,the stability of static equilibrium points is analyzed using the energy method.It is foundthat when there exist two equilibrium points,the smaller oneis stable and the larger one is unstable.The effects of different design parameters on the mirror's pull-in angle andpull-in voltage are studied and it is found that vdW forcecan considerably reduce the stability limit of the mirror.Atthe end,the nonlinear equilibrium equation is solved numerically and analytically using homotopy perturbation method(HPM).It is observed that a sixth order perturbation approximation can precisely model the mirror's behavior.The results of this paper can be used for stable operation design andsafe fabrication of torsional nano/micro actuators. | Hamid Moeenfard Mohammad Taghi Ahmadian | 2012 | Acta Mechanica Sinica2012，28，3： | 4 |
| 11 | Dynamic Adaptive Finite Element Analysis of Acoustic Wave Propagation Due to Underwater Explosion for Fluid-structure Interaction Problems显示文摘在这份报纸,进附近的结构上的水和他们的效果里的远域爆炸波浪的繁殖的调查被执行。为远域结构,包围结构的液体的运动可以被假定小,允许管理液体方程的 linearization。这个问题的完全的分析必须在包围液体包含结构和爆炸波浪的繁殖的动态反应的同时的答案。在这研究,一个动态适应有限元素过程被建议。它到一个 2D 液体结构相互作用的解决方案的应用程序在时间域被调查。研究包括:一) 计算远地散布波浪由于在水下看情况时间的声学的波浪方程的爆炸包括答案, b ) 用联合 Euler-Lagrangian 途径的液体结构相互作用分析,和 c ) 适应有限元素过程采用错误估计,并且重新协调。时间的网孔改编被格子的本地新生基于压力功能的弯曲用时间依赖者错误指示物完成。作为结果,全面反应被一个动人的网孔更好比一个相等的一致网孔预言。另外,当精确性被改进时,为大问题的计算的费用被减少。 | Seyed Shahab Emamzadeh Mohammad Taghi Ahmadi Soheil Mohammadi Masoud Biglarkhani | 2015 | Journal of Marine Science and Application2015，14，3： | 4 |
| 12 | Cattle toxoplasmosis in Iran:a systematic review and meta-analysis显示文摘Objective:To analyze and review the overall seroprevalence rate of Toxoplasma gondii(T.gondii) infection in cattle from Iran.Methods:In the current study,data collection(published and unpublished papers,abstracts of national scientific congresses and dissertations) using particular terms was carried out systematically on the following electronic databases like PubMed,Google Scholar,Ebsco,Science Direct,Scopus,Magiran,Irandoc,IranMedex and SID(Scientific Information Database).Results:A total of 22 studies since 1983 to 2012 reporting the seroprevalence of toxoplasmosis in cattle from different regions of Iran met our eligibility criteria.The pooled proportion of toxoplasmosis,using random effect model,among cattle in Iran from over the 30-year period was estimated 18.1%(95%CI:9.9%to 28.2%).Conclusions:This study firstly establishes a crude seroprevalence rate of Toxoplasma infection in cattle which can lead us to understand the condition of eattle toxoplasmosis,which have to take into accounted fur an appropriate and effective prevention and controls.Secondly,it compares and discusses elaborately the role of risk factors including sex,age and breed in the epidemiology of the disease.Thus,it determines gaps and drawbacks in the prior studies which are greatly useful to design more accurate investigations in the future. | Shahabeddin Sarvi Ahmad Daryani Mohammad Taghi Rahimi Mohsen Aarabi Azar Shokri Ehsan Ahmadpour Azadeh Mizani Mahdi Sharif | 2015 | Asian Pacific Journal of Tropical Medicine2015，8，2： | 4 |
| 13 | CELL ADHESION AND SURFACE PROPERTIES OF POLYSTYRENE SURFACES GRAFTED WITH POLY(N-ISOPROPYLACRYLAMIDE)显示文摘Cell adhesion plays a key role in various aspects of biological and medical sciences. In this study, poly(Nisopropylacrylamide)(PNIPAM) was grafted on polystyrene surfaces using different solvents under UV radiation.Moreover, the relation between surface roughness and cell adhesion were evaluated by gravimetric, SEM, AFM, contact angle measurement and cellular analyses. The gravimetric analysis clearly indicated an increase in the grafting by adding10% methanol to water. The study of surface topography by AFM images showed an increase in the surface roughness and as a result of which, a decrease in wettablity was observed. At 37 C, epithelial cells were well attached and proliferated on the grafted surfaces, while these cells were spontaneously detached below 32 °C in the absence of any enzymes. Moreover,MTT assay and SEM images indicated good cell viability and an increase in cell adhesion caused by the roughness increase. The results of this study reveal the great potential of PNIPAM-grafted polystyrene for being used in the biomedical fields such as drug delivery systems, tissue engineering and cell separation. | Esmaeil Biazar Mohammad Taghi Khorasani Morteza Daliri Joupari | 2013 | Chinese Journal of Polymer Science2013，31，11： | 3 |
| 14 | Spatial optimization of soil and water conservation practices using coupled SWAT model and evolutionary algorithm显示文摘Soil and water conservation practices have been extensively used in effective watershed management.The impact of each conservation practice is site specific and dependent on the implementation site in the watershed.In order to select cost effective placement of conservation practices with high impact,a large number of spatial combinations is needed to be compared.In this study,an optimization model framework is presented to find cost effective solutions for sediment yield and runoff control in the Fariman dam watershed in the Northeast of Iran.This was accomplished by integrating soil and water assessment tool(SWAT)for simulation of watershed hydrology and multi objective genetic algorithm(NSGA-II)for spatial optimization of soil and water conservation practices.The optimized solutions provided a trade-off between the two objective functions.The final Pareto-optimal shows that the impact of soil and water conservation practices on sediment yield is more than stream flow.The trade-offs between the objective functions show that the implementation of the median cost can lead to a significant decrease of 22.1%in the amount of sediment yield,and 10%in stream flow.Also,percent change achieved through median cost is very close to percent reduction with the highest cost.Results of low cost solution show that the vegetative practices are a suitable economic scenario for soil and water conservation.The introduced framework can be adapted as a suitable tool for selecting cost effective conservation practices in different regions. | Farzaeh Naseri Mahmood Azari Mohammad Taghi Dastorani | 2021 | International Soil and Water Conservation Research2021，9，4： | 3 |
| 15 | Evaluation of total load sediment transport formulas using ANN显示文摘The calculated results from various sediment transport formulas often differ from each other and from measured data. Some parameters in the sediment transport formulas are more effective than others to estimate total sediment load. In this study, an Artificial Neural Network (ANN) model is trained using four dominant parameters of sediment transport formulas. ANN models are able to reveal hidden laws of natural phenomena such as sediment transport process. The results of ANN and some total bed material load sediment transport formulas have been compared to indicate the importance of variables which can be used in developing sediment transport formulas. To train ANN, average flow velocity, water surface slopes, average flow depth, and median particle diameter are used as dominant parameters to estimate total bed material load. Two hundreds and fifty samples are used to train the ANN model. Twenty-four sets of field data not used in the training nor calibration of ANN are used to compare or verify the accuracy of ANN and some well-known total bed material load formulas. The test results show that the ANN model developed in this study using minimum number of dominant factors is a reliable and uncomplicated method to predict total sediment transport rate or total bed material load transport rate. Results show that the accuracy of formulas in descending order are those by Yang (1973), Laursen (1958), Engelund and Hansen (1972), Ackers and White (1973), and Toffaleti (1969). These results are similar to those made by ASCE (1982) based on laboratory and field data not used in this paper. Study results also show that the formulas based on physical laws of sediment transport, like those formulas that were developed based on power concept, are more accurate than other formulas for estimating total bed material sediment load in rivers. | Chih Ted YANG Reza MARSOOLI Mohammad Taghi AALAMI | 2009 | International Journal of Sediment Research2009，24，3： | 3 |
| 16 | Educational level and age as contributing factors to road traffic accidents显示文摘在 Fars 省的道路交通事故(RTA ) 上的 ObjectiveThis 研究分析数据,其道路在在伊朗的高度危险的之中。它调查涉及 RTA 以便发现能阻止或减少的模式的教育水平和年龄 accidents.MethodsThis 研究使用了数据可视化技术发现模式隐藏。数据在 Fars 省包括了与 RTA 有关的死亡率并且从从 2010 年 3 月 21 日盖住 1 年的一个时期到 2011 年 3 月 21 日的 Fars 法庭的药登记被获得。所有数据用社会科学统计套装软体 11.5 被分析。结果作为象频率(百分比) 那样的描述的索引被报导。Chisquare 测试有关教育水平和年龄被用于数据。不到 0.05 被认为 significant.ResultsIn 的 P 价值提及的时期, 1 831 个人被打死,从谁 un/lowly 教育了人(69.6%) 说明了最高的死亡率。在教育水平和死亡率之间的重要关系被发现(X 2=275.98, P < 0.0001 ) 。另外三是在年龄和死亡率之间的一个重要协会(X 2=371.20, P < 0.0001 ) 。年轻人(在 20 和 29 年之间的年龄) 与另外的年龄 groups.ConclusionThe 相比贡献更高的 RTA 死亡率教育水平和年龄显著地被相关到死亡率。青春和 un/lowly 教育了人承受更多的致命的 RTA。 | Ashkan Sami Ghasem Moafian Arman Najafi Mohammad Reza Aghabeig Navid Yamin Seyed Taghi Heydari Kamran B Lankarani | 2013 | Chinese Journal of Traumatology2013，16，5： | 2 |
| 17 | Improvement of the prediction performance of a soft sensor model based on support vector regression for production of ultra-low sulfur diesel显示文摘A novel data-driven, soft sensor based on support vector regression(SVR) integrated with a data compression technique was developed to predict the product quality for the hydrodesulfurization(HDS) process. A wide range of experimental data was taken from a HDS setup to train and test the SVR model. Hyper-parameter tuning is one of the main challenges to improve predictive accuracy of the SVR model.Therefore, a hybrid approach using a combination of genetic algorithm(GA) and sequential quadratic programming(SQP)methods(GA–SQP) was developed. Performance of different optimization algorithms including GA–SQP, GA, pattern search(PS), and grid search(GS) indicated that the best average absolute relative error(AARE), squared correlation coefficient(R2), and computation time(CT)(AARE = 0.0745, R2= 0.997 and CT = 56 s) was accomplished by the hybrid algorithm. Moreover, to reduce the CT and improve the accuracy of the SVR model, the vector quantization(VQ) technique was used. The results also showed that the VQ technique can decrease the training time and improve prediction performance of the SVR model. The proposed method can provide a robust, soft sensor in a wide range of sulfur contents with good accuracy. | Saeid Shokri Mohammad Taghi Sadeghi Mahdi Ahmadi Marvast Shankar Narasimhan | 2015 | Petroleum Science2015，12，1： | 2 |
| 18 | Soft sensor design for hydrodesulfurization process using support vector regression based on WT and PCA显示文摘A novel method for developing a reliable data driven soft sensor to improve the prediction accuracy of sulfur content in hydrodesulfurization(HDS) process was proposed. Therefore, an integrated approach using support vector regression(SVR) based on wavelet transform(WT) and principal component analysis(PCA) was used. Experimental data from the HDS setup were employed to validate the proposed model. The results reveal that the integrated WT-PCA with SVR model was able to increase the prediction accuracy of SVR model. Implementation of the proposed model delivers the best satisfactory predicting performance(EAARE=0.058 and R2=0.97) in comparison with SVR. The obtained results indicate that the proposed model is more reliable and more precise than the multiple linear regression(MLR), SVR and PCA-SVR. | Saeid Shokri Mohammad Taghi Sadeghi Mahdi Ahmadi Marvast Shankar Narasimhan | 2015 | Journal of Central South University2015，22，2： | 2 |
| 19 | An epidemiologic survey of road traffic accidents in Iran: analysis of driver-related factors显示文摘ObjectiveRoad 交通事故(RTA ) 和它的相关损害在伊朗贡献疾病的负担的重要部分。这份报纸在 countryMethodsThis 探索在司机相关的因素和 RTA 之间的协会代表性的学习从 2010 年 3 月 20 日关于 RTA 在伊朗和所有数据被进行到 2010 年 6 月 10 日从交通警察部门被获得。我们包括了 538 588 RTA 记录,它被分类为主要 confounders 控制:事故类型,事故的最后的原因,事故的时间和司机相关的因素。司机相关的因素包括了性,教育水平,许可证类型,损害的类型,在事故之间的持续时间并且得到驾驶执照和 538 588 位司机的 driver’s 错误 type.ResultsA 总数(91.83% 男性,几乎 13:1 的性比率) 涉及 RTA。在他们之中 423 (78.71%) 932 是未受损伤的;224 (41.74%) 818 有证书度。等级 2 驾驶执照代表了所有驾驶执照的最高的比例(290 811, 54.00%) 。事故的最大的数字发生在 12:00-13:59 (75 024, 13.93%) 。涉及 RTA 的司机的比例在在 10 以后得到一个驾驶执照到 3.13% 的第一年里从 15.90% 减少了; years’驾驶经验。规定的疏忽是交通碰撞的最普通的原因(345 589, 64.17%) 。到前面的优先级和疏忽的违反是死亡的最经常的最后的原因(138 175, 25.66% 和 129 352, 24.02% ,分别地) 。我们发现了在事故和性的类型之间的重要协会,教育,许可证类型,事故的时间,事故的最后的原因,在事故之间的 driver’s 错误以及持续时间并且得到驾驶执照(所有 P ;< ; 0.001 ) .ConclusionOur 结果将改进交通法律实施措施,它将改变司机的不恰当的行为并且保护最不富有经验的道路用户。 | Ghasem Moafian Mohammad Reza Aghabeigi Seyed Taghi Heydari Amin Hoseinzadeh Kamran Bagheri Lankarani Yaser Sarikhani | 2013 | Chinese Journal of Traumatology2013，16，3： | 2 |
| 20 | Effects of operating parameters on oxidative coupling of methane over Na-W-Mn/SiO_2 catalyst at elevated pressures显示文摘The effects of operating parameters on oxidative coupling of methane (OCM) over Na-W-Mn/SiO2 catalyst have been studied at elevated pressures of 0.2, 0.3 and 0.4 MPa under low gaseous hourly space velocity (GHSV) and low temperature conditions. Experimental results show that when the operating pressure is increased, C2+ yield slightly decreases, while the maximum ratio of ethylene to ethane remains unchanged. Moreover, it has been found empirically that increase of pressure does not affect the catalyst behavior permanently, the catalyst recovers its original low pressure performance without hysteresis behavior by reducing the pressure. Under the investigated conditions, when oxygen is completely consumed, the increase of GHSV leads to improvement in C2 selectivity, while C3+ and COx selectivities decrease slightly. The C2+ selectivity increases by increase of nitrogen diluent in the feed, but the C3+ hydrocarbons selectivities decrease with increase of nitrogen since it is possible that further dilution at high pressure may reduce the probability of collision between CH3 and C2+ hydrocarbons. During the stability test at high pressure, the catalyst performance remains unchanged throughout the 20 h running. The fresh and used catalysts were characterized using XRD, SEM and N2 adsorption-desorption methods. It was found that the phase transformation of the support from α-cristobalite to tridymite and quartz does not have obvious effect on catalyst performance at high pressure. | Jafar Sadeghzadeh Ahari Mohammad Taghi Sadeghi Saeed Zarrinpashne | 2011 | Journal of Natural Gas Chemistry2011，20，2： | 2 |
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