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| 1 | Process mineralogy as a key factor affecting the flotation kinetics of copper sulfide minerals显示文摘The aim of this study is to apply process mineralogy as a practical tool for further understanding and predicting the flotation kinetics of the copper sulfide minerals. The minerals' composition and association, grain distribution, and liberation within the ore samples were analyzed in the feed, concentrate, and the tailings of the flotation processes with two pulp densities of 25 wt% and 30 wt%. The major copper-bearing minerals identified by microscopic analysis of the concentrate samples included chalcopyrite(56.2 wt%), chalcocite(29.1 wt%),covellite(6.4 wt%), and bornite(4.7 wt%). Pyrite was the main sulfide gangue mineral(3.6 wt%) in the concentrates. A 95% degree of liberation with d_(80) > 80 μm was obtained for chalcopyrite as the main copper mineral in the ore sample. The recovery rate and the grade in the concentrates were enhanced with increasing chalcopyrite particle size. Chalcopyrite particles with a d_(80) of approximately 100 μm were recovered at the early stages of the flotation process. The kinetic studies showed that the kinetic second-order rectangular distribution model perfectly fit the flotation test data. Characterization of the kinetic parameters indicated that the optimum granulation distribution range for achieving a maximum flotation rate for chalcopyrite particles was between the sizes 50 and 55 μm. | Ataallah Bahrami Mirsaleh Mirmohammadi Yousef Ghorbani Fatemeh Kazemi Morteza Abdollahi Abolfazl Danesh | 2019 | International Journal of Minerals,Metallurgy and Materials2019,26,4: | 4 |
| 2 | 《认知行为疗法减轻耳鸣、听觉过敏及恐声症所致痛苦的现状》摘译显示文摘1耳鸣的定义和心理学影响耳鸣是没有外部声音刺激的情况下对声音的感知。耳鸣常见描述有:嗡嗡声、高音调噪声、口哨声、瀑布声、砂轮声、铃声、静电噪声等,大约20%的患者无法描述他们的耳鸣声。大多数耳鸣患者伴有某种程度的听力损失,但并非所有的听力损失患者都有耳鸣。英国最近一项针对在耳鸣和听觉过敏诊所就诊的445例患者的研究表明,耳鸣的响度与听力损失的严重程度有关。 | 余炎林(摘译) 张剑宁(审校) Aazh H Landgrebe M Danesh AA | 2021 | 听力学及言语疾病杂志2021,29,1: | 3 |
| 3 | 冠心病中7个凝血基因的多态性:对66155例冠心病患者及91307例对照者的荟萃分析显示文摘Background: Variants of certain haemostatic genes(such as that encoding factor V Leiden) are involved in the development of venous thrombosis, but studies of such variants in coronary disease have reported apparently conflicting results. We did meta-analyses on seven such haemostatic genetic variants for which the available evidence on each comprises at least 5000 coronary disease cases and at least 5000 controls. Methods: Meta-analyses were done of 191 studies in relation to factor V G1691A(ie, factor V Leiden), factor VII G10976A, prothrombin G20210A, plasminogen activator inhibitor-1(PAI-1) [-675] 4G/5G, and three platelet glycoprotein(GP)receptor variants(GPIa C807T, GPIbα T[-5]C,GPIIIa C1565T), involving a total of 66 155 coronary disease cases and 91 307 controls. We explored potential sources of heterogeneity. Findings: In a combined analysis of all studies, the per-allele relative risks(RR) for coronary disease of factor V 1691A and of prothrombin 20210A were 1.17(95% CI 1.08-1.28) and 1.31(1.12-1.52), respectively. Combined analyses of studies of the PAI-1 [-675] 4G variant yielded a per-allele relative risk for coronary disease of 1.06(1.02-1.10), but there was an indication of publication bias in these studies. Combined analyses of the factor VII 10976A, GPIa 807T, GPIbα [-5]C, and GPIIIa 1565T variants showed no significant overall associations with coronary disease, yielding per-allele RRs of 0.97(0.91-1.04), 1.02(0.97-1.08), 1.05(0.96-1.13), and 1.03(0.98-1.07) , respectively. Interpretation: The 1691A variant of the factor V gene and the 20210A variant of the prothrombin gene, both of which increase circulating thrombin generation, might each be moderately associated with the risk of coronary disease. Further studies are merited to assess these associations in greater detail(including any gene-gene and gene-environment interactions) and to determine any implications with regard to potential therapies designed to reverse patients prothrombotic phenotype, such as selective plasma factor V or factor Xa inhibition. | Higgins J.P. J. Danesh 马超 | 2006 | 世界核心医学期刊文摘(心脏病学分册)2006,2,8: | 2 |
| 4 | LES-DEM simulations of sediment transport显示文摘In this work, a fully-coupled Computational Fluid Dynamics(CFD) model and Discrete Element Method(DEM) are used to simulate a unidirectional turbulent open-channel flow over the full range of sediment transport regimes. The fluid and particles are computed on separate grids using a dual-grid formulation to maintain consistency and avoid instability issues. The results of coupling the dispersed phase to a multiphase flow solver that uses volume-averaged Navier-Stokes equations are compared to those obtained from coupling through drag to a single flow solver. The current work also examines the applicability and limitations of lumping particles as a representative particle to reduce the cost of simulations. Insight to the impact of different turbulent events to the entrainment of particles is also given. The simulation results of sediment transport from both coupling techniques show good agreement with empirical formulas in the bedload regime, but under-predict sediment transport in the suspended load regime. In the suspended load regime, using partial coupling, the rate of sediment transport was found to be under-predicted as compared to full-coupling. The deviation in results in the suspended load regime was found to increase with increases in the applied shear stress. Both coupling methods revealed the same effect on the friction factor where friction increases in the bedload regime and decreases in the suspended load regime reaching a maximum at the transition between regimes. This result is contrary to past studies which have shown a discrete jump in the friction factor at the transition. Lumping particles as representative particles is shown to reduce the simulation cost by more than a factor of 5 when using a scaling factor of 2. By doing a quadrant analysis on information obtained from particle and flow field results, it was found that most of the particles are entrained by more frequent sweep events. | Husam Elghannay Danesh Tafti | 2018 | International Journal of Sediment Research2018,33,2: | 2 |
| 5 | Triglycerides and the risk of coronary heart disease:10,158 incident cases among 262,525 participants in 29 Western prospective studies显示文摘 | Sarwar N Danesh J Eiriksdottir G | | Circulation0,,: | 2 |
| 6 | 胆固醇酯转移蛋白基因的蛋白质截断型变异体与冠状动脉性心脏病风险的关系显示文摘随机对照试验结果表明,抑制胆固醇酯转运蛋白(cholesteryl ester transfer protein,CETP)的疗法并不能降低冠状动脉性心脏病(coronary heart disease,CHD)的发生风险。研究失败的可能原因包括靶目标无效、靶目标外小分子的不良反应和随机对照设计因素影响等。在编码药物靶点的基因中具有天然存在的遗传变异,以此为基础,人类研究可以深入了解针对基因产物的治疗的潜在功效和安全性。 | Nomura A Won HH Khera AV Takeuchi F Ito K McCarthy S Emdin CA Klarin D Natarajan P Zekavat SM Gupta N Peloso GM Borecki IB Teslovich TM Asselta R Duga S Merlini PA Correa A Kessler T Wilson JG Bown MJ Hall AS Braund PS Carey DJ Murray MF Kirchner HL Leader JB Lavage DR Manus JN Hartze DN Samani NJ Schunkert H Marrugat J Elosua R McPherson R Farrall M Watkins H Juang JJ Hsiung CA Lin SY Wang JS Tada H Kawashiri MA Inazu A Yamagishi M Katsuya T Nakashima E Nakatochi M Yamamoto K Yokota M Momozawa Y Rotter JI Lander ES Rader DJ Danesh J Ardissino D Gabriel S Willer CJ Abecasis GR Saleheen D Kubo M Kato N Ida Chen YD Dewey FE Kathiresan S 刘莉 叶鹏 | 2017 | 中华高血压杂志2017,25,9: | 2 |
| 7 | Investigation of structure and mechanical properties of multi-layered Al/Cu composite produced by accumulative roll bonding (ARB) process显示文摘 | M. Eizadjou A. Kazemi Talachi H. Danesh Manesh H. Shakur Shahabi K. Janghorban | 2008 | Composites Science and Technology2008,,9: | 2 |
| 8 | Effect of intra- gastric pH on mucosal protective action of sucralfate 显示文摘 | DANESH B J DUNCAN A RUSSELL R I | 1988 | Gut1988,29,10: | 1 |
| 9 | Plasma fibrinogen level and the risk of major cardiovascular diseases and nonvascular mortality: an individual participant meta- analysis 显示文摘 | Danesh J Lewington S Thompson SG | 2005 | JAMA2005,294,15: | 1 |
| 10 | C-reactive protein and other circulating markers of inflammation in the prediction of coronary heart disease显示文摘 | Danesh J Wheeler J G Hirschfield G M | 2004 | N Engl J Med2004,350,: | 1 |
| 11 | Triglycerides and the risk of coronary heart disease:10,158 incident cases among 262525 participants in 29 Western prospective studies显示文摘 | Sarwar N Danesh J Eiriksdottir G | 2007 | Circulation2007,115,: | 1 |
| 12 | Fibrin D-dimer and coro-nary heart disease:prospective study and meta-analysis显示文摘 | Danesh J Whincup P Walker M | 2001 | Circu-lation2001,103,: | 1 |
| 13 | Chlamydia pnemoniae IgG titres and coronary heart disease:prospective study and meta-analysis显示文摘 | Danesh J Whincup P Walker M | 2000 | BMJ2000,321,: | 1 |
| 14 | Mi- cmstructure and Mechanical Properties of Ultra-fine Grains (UFGs) Aluminum Strips Produced by ARB process 显示文摘 | Eizadjou Mehdi Manesh Habib Danesh Janghorban Kamal | 2009 | Journal of Alloys and Compounds2009,474,12: | 1 |
| 15 | Effects of antenatal corti- costeroids on maternal serum indicators of infection in women at risk for preterm delivery: A randomized trial comparing beta- methasone and dexamethasone 显示文摘 | Danesh A Janghorbani M Khalatbari S | 2012 | J Res Med Sci2012,17,10: | 1 |
| 16 | Triglycerides and the Risk of Coronary Heart Disease: 10 158 Incident Cases Among 262 525 Participants in 29 Western Prospective Studies显示文摘 | Nadeem Sarwar John Danesh Gudny Eiriksdottir Gunnar Sigurdsson Nick Wareham Sheila Bingham S Matthijs Boekholdt Kay-Tee Khaw Vilmundur Gudnason | 2007 | Circulation2007,,4: | 1 |
| 17 | Helicobacter pylori infection and gastric cancer: systematic review of epidemiological studies 显示文摘 | Danesh J | 1999 | Aliment Phannacol Ther1999,13,7: | 1 |
| 18 | C-reactive protein and other circulating markers of inflammation in the prediction of coronary heart disease显示文摘 | DANESH J WHEELER J G HIRSCHFIELD G M | 2004 | N Engl J Med2004,350,: | 1 |
| 19 | Helicobacter pylori infection and gastric cancer:systematic review of epidemiological studies显示文摘 | Danesh J | 1999 | Aliment Pharmacol Ther1999,13,7: | 1 |
| 20 | Chronic infection with Helicobacter pylori, Chlamydia pneumoniae, cytomegalovirus: population based study of coronary heart disease显示文摘 | Danesh J Wong Y Ward M | 1999 | Heart1999,81,3: | 1 |