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| 1 | Improved prediction of slope stability using a hybrid stacking ensemble method based on finite element analysis and field data显示文摘Slope failures lead to catastrophic consequences in numerous countries and thus the stability assessment for slopes is of high interest in geotechnical and geological engineering researches.A hybrid stacking ensemble approach is proposed in this study for enhancing the prediction of slope stability.In the hybrid stacking ensemble approach,we used an artificial bee colony(ABC)algorithm to find out the best combination of base classifiers(level 0)and determined a suitable meta-classifier(level 1)from a pool of 11 individual optimized machine learning(OML)algorithms.Finite element analysis(FEA)was conducted in order to form the synthetic database for the training stage(150 cases)of the proposed model while 107 real field slope cases were used for the testing stage.The results by the hybrid stacking ensemble approach were then compared with that obtained by the 11 individual OML methods using confusion matrix,F1-score,and area under the curve,i.e.AUC-score.The comparisons showed that a significant improvement in the prediction ability of slope stability has been achieved by the hybrid stacking ensemble(AUC?90.4%),which is 7%higher than the best of the 11 individual OML methods(AUC?82.9%).Then,a further comparison was undertaken between the hybrid stacking ensemble method and basic ensemble classifier on slope stability prediction.The results showed a prominent performance of the hybrid stacking ensemble method over the basic ensemble method.Finally,the importance of the variables for slope stability was studied using linear vector quantization(LVQ)method. | Navid Kardani Annan Zhou Majidreza Nazem Shui-Long Shen | 2021 | Journal of Rock Mechanics and Geotechnical Engineering2021,13,1: | 10 |
| 2 | Oxidative Desulfurization of Non-hydrotreated Kerosene Using Hydrogen Peroxide and Acetic Acid显示文摘The oxidative desulfurization of a real refinery feedstock (i.e.,non-hydrotreated kerosene with total sulfur mass content of 0.16%) with a mixture of hydrogen peroxide and acetic acid was studied.The influences of various operating parameters including reaction temperature (T),acid to sulfur molar ratio (nacid/nS),and oxidant to sulfur molar ratio (nO/nS) on the sulfur removal of kerosene were investigated.The results revealed that an increase in the reaction temperature (T) and nacid/nS enhances the sulfur removal.Moreover,there is an optimum nO/nS related to the reaction temperature and the best sulfur removal could be obtained at nO/nS=8 and 23 for the reaction temperatures of 25 and 60°C,respectively.The maximum observed sulfur removal in the present oxidative desulfurization system was 83.3%. | Asghar Molaei Dehkordi Mohammad Amin Sobati Mohammad Ali Nazem | 2009 | Chinese Journal of Chemical Engineering2009,17,5: | 8 |
| 3 | Efficacy and safety of Amla(Phyllanthus emblica L.) in non-erosive reflux disease:a double-blind,randomized,placebo-controlled clinical trial显示文摘Background: Gastroesophageal reflux disease(GERD) is one of the most common gastrointestinal complaints. GERD, caused by the reflux of stomach contents into the esophagus, leads to troublesome symptoms such as heartburn and regurgitation. It is classified into two types: erosive esophagitis,characterized by visible esophageal mucosa erosion in endoscopy, and non-erosive reflux disease(NERD). GERD is a chronic and recurrent disease that impairs the quality of life and imposes socioeconomic and therapeutic burdens to both patients and society.Objective: Due to the failure of the conventional treatments for GERD and to the traditional use of Amla(Phyllanthus emblica L.), in addition to beneficial effects shown in recent studies, we evaluated the safety and efficacy of Amla tablet for improvement of symptoms of patients with NERD.Design, setting, participants and interventions: We designed a double-arm, randomized, double-blind,placebo-controlled clinical trial. Sixty-eight patients who had classic symptoms of GERD(heartburn,regurgitation and epigastralgia) for at least three months before the start of the trial were randomized in two parallel groups. Patients in the Amla group received two 500 mg Amla tablets twice a day, after meals,for 4 weeks. In the control group, patients received placebo tablets similar to the Amla prescription.Main outcome measures: The patients were visited at baseline, and at the end of the 2 nd and 4 th weeks of intervention; their symptoms were measured on a frequency and severity scale for the symptoms of NERD,according to the quality of life in reflux-associated disease questionnaire.Results: Frequencies of heartburn and regurgitation in both groups of the study were significantly reduced after intervention(P < 0.001). Repeated measures logistic regression analysis showed that, in the Amla group, there was a more significant reduction in regurgitation frequency, heartburn frequency, regurgitation severity and heartburn severity during the study period, compared with the placebo group(P < 0.001).Conclusion: This randomized double-blind, placebo-controlled clinical trial demonstrated that Amla could reduce frequencies of heartburn and regurgitation and improve heartburn and regurgitation severity in patients with NERD. | Shahnaz Karkon Varnosfaderani Fataneh Hashem-Dabaghian Gholamreza Amin Mahbubeh Bozorgi Ghazaleh Heydarirad Esmaeil Nazem Mohsen Nasiri Toosi Seyed Hamdollah Mosavat | 2018 | Journal of Integrative Medicine2018,16,2: | 7 |
| 4 | Antioxidant properties and inhibitory effects of Satureja khozestanica essential oil on LDL oxidation induced-CuSO_4 in vitro显示文摘Objective:To assess various antioxidative activities of Satureja khozestanica essential oil(SKE)and its effect on oxidation of low density lipoprotein(LDL)induced by CuSO_4 in vitro by monitoring the formation of conjugated dienes and malondialdehyde(MDA).Methods:The formation of conjugated dienes,lag time and MDA were measured.Inhibition of this Cu-induced oxidation was studied in the presence of several concentrations of SKE.Also total antioxidant activity and free radical scavenging of SKE were determinated.Results:It was demonstrated that SKE was able to inhibit LDL oxidation and decrease the resistance of LDL against oxidation.The inhibitory effects of SKE on LDL oxidation were dose-dependent at concentrations ranging from 50 to 200μg/mL.Total antioxidant capacity of SKE was(3.20±0.40)nmol of ascorbic acid equivalents/g SKE.The SKE showed remarkable scavenging activity on 2,2-diphenyl-picrylhydrazyl,IC_(50)(5.30±0.11)ng/mL.Conclusions:This study shows that SKE is a source of potent antioxidants and prevents the oxidation of LDL in vitro and it may be suitable for use in food and pharmaceutical applications. | Shahrokh Bagheri Hassan Ahmadvand Ali Khosrowbeygi Farshid Ghazanfari Narges Jafari Habibolah Nazem Reza Haji Hosseini | 2013 | Asian Pacific Journal of Tropical Biomedicine2013,3,1: | 2 |
| 5 | Validity of the MoCA and MMSE in the detection of MCI and dementia in Parkinson disease显示文摘 | Hoops S Nazem S Siderowf AD | 2009 | Neurology2009,73,21: | 1 |
| 6 | Montreal cognitive assessment performance in patients with Parkinson's disease with'normal'global cognition according to mini-mental state examination score显示文摘 | Nazem S Sidcrowf AD Duda JE | 2009 | J Am Geriatr Soc2009,57,: | 1 |
| 7 | Validity of the Mo CA and MMSE in the detection of MCI and dementia in Parkinson disease显示文摘 | HOOPS S NAZEM S SIDEROWF A D | 2009 | Neurology2009,73,21: | 1 |
| 8 | Validity of the MoCA and MMSE in the detection of MCI and dementia in Parkinson disease显示文摘 | Hoops S Nazem S Siderowf AD | | 0,,21: | 1 |
| 9 | Montreal cognitive assess- ment performance in patients with Parkinson's disease with ' normal' global cognition according to mini - mental state examination score 显示文摘 | Nazem S Siderowf AD Duda JE | 2009 | J Am Geriatr Soc2009,57,2: | 1 |
| 10 | Validity of the MoCA and MMSE in the detection of MCI and dementia in Parkinson disease 显示文摘 | Hoops S Nazem S Siderowf AD | 2009 | Neurology2009,73,21: | 1 |
| 11 | Montreal cognitive assessment performance in patients with Parkinson's disease with 'normal' global cognition according to mini-mental state examination score 显示文摘 | Nazem S Siderowf AD Duda JE | 2009 | J Am Geriatr Soc2009,57,2: | 1 |
| 12 | Methylenete- trahydrofolate reductase gene polymorphism in diabetes and obesity显示文摘 | Bazzaz JT Shojapoor M Nazem H | 2010 | Mol Biol Rep2010,37,1: | 1 |
| 13 | Benign joint hypermobility syndrome among children with inguinal hernia 显示文摘 | Masoud Nazem Peyman | 2013 | Journal of research in medical sciences:the official journal of Isfahan University of Medical Sciences2013,18,10: | 1 |
| 14 | Body mass index, waist-circumference and cardiovascular disease risk factors in Iranian adults: Isfahan healthy heart program显示文摘 | Mohammadifard N Nazem M Sarrafzadegan N | 2013 | J Health Popul Nutr2013,31,3: | 1 |
| 15 | Validity of the MoCA and MMSE in the detection of MCI and dementia in Parkinson disease显示文摘 | S Hoops S Nazem A D. Siderowf J E. Duda S X. Xie M B. Stern D Weintraub | 2009 | Neurology2009,,21: | 1 |
| 16 | Cupping therapy can improve the quality of life of healthy people in Tehran显示文摘OBJECTIVE: To examine the influence of cupping on the quality of life of healthy people who referred to traditional Persian medicine clinics in Tehran.METHODS: All participants were examined by Traditional Persian Medicine specialists and their temperaments were determined. The area between the shoulders was cleaned, and cupping was performed with a disposable cupping glass for a few minutes. The questionnaire used in this project was the Persian version of the SF-36 questionnaire which assesses people's understanding of their health status. Before cupping and then one monthafter cupping, all participants were called and the questionnaires were completed again. Finally, all given data was analyzed.RESULTS: From a total of 290 questionnaires completed in the first phase of the project, 112 patients were excluded. Ultimately, the data of 178 participants was analyzed. After one month, the quality of life score of 155 participants(88%) increased, remained unchanged for 21 participants(11.7%), and decreased for 2 participants(1.1%). Asked about possible complications from cupping, 160 participants reported no side effects(89.9%).CONCLUSION: Our findings suggest that cupping therapy can improve the scores of quality of life in the participants in Tehran. | Gholamreza Kordafshari Mohammad Reza Shams Ardakani Mansoor Keshavarz Mohammad Mehdi Esfahani Ismaeel Nazem Maryam Moghimi Arman Zargaran Hoorieh Mohammadi Kenari | 2017 | Journal of Traditional Chinese Medicine2017,37,4: | 1 |
| 17 | Identification and quantification of sucrose esters in various Turkish tobaccos 显示文摘 | Khorassani M A Nazem N Taylor L T | 2005 | Beitr Tabakfor Int2005,21,8: | 1 |
| 18 | Validity of the MoCA and MMSE in the detection of MCI and dementia in Parkinson dis ease显示文摘 | Hoops S Nazem S Siderowf AD | 2009 | Neurology2009,73,21: | 1 |
| 19 | Montreal cognitive assessment performance in patients with Parkinson's disease with 'normal' global cognition according to mini-mental state examination score显示文摘 | Nazem S Siderowf AD Duda JE | | 0,,2: | 1 |
| 20 | Some computational aspects for solving deep penetration problems in geomechanics显示文摘 | SHENG DAI-CHAO NAZEM MAJIDREZA CARTER JOHN P | 2009 | Computational Mechanics2009,44,: | 1 |