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| 1 | Contribution of oxidative stress to pulmonary arterial hypertension显示文摘Recent data implicate oxidative stress as a mediator of pulmonary hypertension (PH) and of the associated pathological changes to the pulmonary vasculature and right ventricle (RV). Increases in reactive oxygen species (ROS), altered redox state, and elevated oxidant stress have been demonstrated in the lungs and RV of several animal models of PH, including chronic hypoxia, monocrotaline toxicity, caveolin-1 knock-out mouse, and the transgenic Ren2 rat which overexpresses the mouse renin gene. Generation of ROS in these models is derived mostly from the activities of the nicotinamide adenine dinucleotide phosphate oxidases, xanthine oxidase, and uncoupled endothelial nitric oxide synthase. As disease progresses circulating monocytes and bone marrow-derived monocytic progenitor cells are attracted to and accumulate in the pulmonary vasculature. Once established, these inflammatory cells generate ROS and secrete mitogenic and fibrogenic cytokines that induce cell proliferation and fibrosis in the vascular wall resulting in progressive vascular remodeling. Deficiencies in antioxidant enzymes also contribute to pulmonary hypertensive states. Current therapies were developed to improve endothelial function, reduce pulmonary artery pressure, and slow the progression of vascular remodeling in the pulmonary vasculature by targeting deficiencies in either NO (PDE-type 5 inhibition) or PGI 2 (prostacyclin analogs), or excessive synthesis of ET-1 (ET receptor blockers) with the intent to improve patient clinical status and survival. New therapies may slow disease progression to some extent, but long term management has not been achieved and mortality is still high. Although little is known concerning the effects of current pulmonary arterial hypertension treatments on RV structure and function, interest in this area is increasing. Development of therapeutic strategies that simultaneously target pathology in the pulmonary vasculature and RV may be beneficial in reducing mortality associated with RV failure. | Vincent G DeMarco Adam T Whaley-Connell James R Sowers Javad Habibi Kevin C Dellsperger | 2010 | World Journal of Cardiology2010,2,10: | 21 |
| 2 | 3.0 T高空间分辨力MR下肢血管成像对比剂剂量的对照性研究显示文摘目的明确在3.0T设备上行下肢高空间分辨力MR血管成像时,是否可在对比剂剂量减少的情况下仍保持较好的影像质量。方法45例病人(男27例,女18例;平均年龄64岁)在3.0T设备上行下肢增强MR血管成像检查。本研究经学院伦理委员会批准可免除知情同意书。16例采用高剂量(约0.3mmol/kg),15例采用中等剂量(约0.2mmol/kg),14例采用低剂量(约0.1mmol/kg)的马根维显溶液进行3站双相注射检查。将动脉系统从腹腔干到跖动脉分成34个节段评定积分。 | R. Habibi M.S. Krishnam D.G. Lohan F. Barkhordarian M. Jalili R.S.Saleh 白荣杰(译) 唐光健(校) | 2008 | 国际医学放射学杂志2008,31,5: | 15 |
| 3 | Load-settlement behaviour of a strip footing resting on iron ore tailings as a structural fill显示文摘This study presents a laboratory investigation of load-settlement behaviour of a strip footing resting on iron ore tailings used as a structural fill.The footing was placed at various depths in the tailings bed.The relative density of the tailings was varied as D_r = 50%,70%and 90%.An incremental load was applied on the footing while observing the settlement until the failure took place.The results obtained for tailings were compared with those for the sandy soil.It is observed that the load-bearing capacity and stiffness increase with an increase in footing embedment depth and relative density.Compared to load-settlement behaviour of Perth sandy soil,the tailings fill could have as high as 22 times and 13.5 times the load-bearing capacity and stiffness,respectively.Therefore,the replacement of sandy soil with iron ore tailings for structural fills is cost-effective,and moreover,this application contributes to environmental sustainability in construction. | Kuranchie Francis Atta Shukla Sanjay Kumar Habibi Daryoush Kazi Monir | 2016 | International Journal of Mining Science and Technology2016,26,2: | 8 |
| 4 | Study of effective parameters for enhancement of methane gas production from natural gas hydrate reservoirs显示文摘Natural gas hydrate resources have become the major source of energy in the second half of 21st century.Gas production and fluid behavior in natural gas hydrate reservoirs are different from conventional ones.There are three major methods for methane decomposition such as depressurization,thermal stimulation and inhibitor injection.However,CO2 substitution can also be introduced as an alternative method to inject in sediments containing gas hydrate.All these methods tend to imbalance equilibrium condition via temperature and pressure variation in order to fulfill hydrate decomposition process.This study aims to simulate depressurization method for gas production from a hydrate gas bearing layer.Hence,a sensitivity analysis of reservoir parameters includes porosity,permeability,hydrate saturation,hydrate thickness layer;pressure and temperature of single well hydrate model were investigated to determine how these parameters impact on gas production.Results show that depressurization is an efficient method for gas production from hydrate bearing sediments.Through sensitivity analysis,it has been concluded that if properties of a hydrate layer such as porosity and permeability become greater,methane production will be increased significantly.Moreover,results investigate that the rate of hydrate dissociate is strongly dependent on pressure reduction,and it has a reverse relationship with bottomhole pressure and reservoir temperature. | Hamid Aghajari Moien Habibi Moghaddam Mehdi Zallaghi | 2019 | Green Energy & Environment2019,4,4: | 5 |
| 5 | 无储能单元串联式电传动车辆直流母线电压鲁棒控制的研究显示文摘鉴于一般串联式电传动车辆带有一定容量的储能单元,导致系统体积大、成本高、寿命低等缺陷,提出一种无储能单元的串联式电传动系统,并针对取消储能单元带来的母线电压波动问题,在传统电压和电流双闭环PI控制基础上加入模糊控制,制定了模糊自适应PI控制的直流母线电压控制策略,提出了PI参数的在线自整定方法。搭建无储能单元串联式电传动系统的Matlab/Simulink模型,对模型和控制策略进行仿真。结果表明,模糊自适应PI控制策略有利于提高系统的响应速度,减小电压的超调量,增强系统鲁棒性,有更好的静、动态性能。 | 宋强 李松 Saeid Habibi | 2017 | 汽车工程2017,39,8: | 4 |
| 6 | A Feature Model Based Framework for Refactoring Software Product Line Architecture显示文摘软件生产线(系统程序设计语言) 是过去常与类似的高度开发软件产品的一个范围的一条途径。在这条途径,一个特征模型通常被用来追踪类似和差别。随着时间的过去,当修正被做到系统程序设计语言,与特征模型一起的矛盾能产生。处理这些矛盾的第一条途径正在重新分解。重新分解由当积累时,可以在系统程序设计语言导致大规模变化的小步组成,导致被增加或从系统程序设计语言消除了的特征。在这份报纸,我们为重新分解系统程序设计语言建议一个框架,它帮助与特征模型一起使系统程序设计语言一致。在一些介绍讲话以后,我们为代表特征模型描述一个正式模型。我们正式表示对特征模型和 SPL 适用的各种各样的重新分解的模式,然后为在系统程序设计语言发现他们介绍一个算法。最后,我们使用一种系统程序设计语言的真实世界的案例研究说明在纸介绍的框架的适用性。 | Mohammad Tanhaei Jafar Habibi Seyed-Hassan Mirian-Hosseinabadi | 2016 | Journal of Computer Science & Technology2016,31,5: | 3 |
| 7 | On Skew Triangular Matrix Rings显示文摘让 R 是有一个内变质作用的一枚戒指。我们证明干净性质和 R 的各种各样的 Armendariz 类型性质被斜矩阵戒指 S 继承(R, n,) 并且 T (R, n,) 。他们与继承戒指的各种各样的有趣的性质的 nilpotency 的任意的索引的非零 nilpotent 理想允许戒指的构造。 | M. Habibi A. Moussavi A. Alhevaz | 2015 | Algebra Colloquium2015,22,2: | 3 |
| 8 | Preoperative clinical and paraclinical predictors of choledocholithiasis显示文摘BACKGROUND:Choledocholithiasis is the most common cause of obstructive jaundice and cholangitis and occurs in about 10%of patients with symptomatic gallstone.The aim of this study was to find preoperative and non-invasive tests for predicting common bile duct stones(CBDs). METHODS:Findings of clinical examination,history laboratory tests and ultrasound(US)in 60 patients with CBDs were compared retrospectively,with 60 patients with gallstones.The data were collected from medical charts The sensitivity,specificity and positive predictive value (PPV)were determined. RESULTS:The comparison between the two groups showed significant differences in anorexia,itching,dark urine subicterus(slightly elevated serum bilirubin without clinical evidence of jaundice)and jaundice appearance increased bilirubin level,aspartate aminotransferase(AST) and alanine aminotranferase(ALT),CBD diameter>6 mm and stone observation under US(P<0.05).The highest specificity(100%)and PPV(100%)were found in dark urine and pale colored stool,history of cholangitis,and icterus.Among paraclinical tests,alkaline phosphatase (ALP)had the highest specificity(72.1%)and PPV(12.5%) Under US,stone observation in CBD was the most important factor with a sensitivity of 94.5%,a specificity of 100%and a PPV of 100%. CONCLUSIONS:The most important factors for predicting CBDs are history of cholangitis and pancreatitis,presence of icterus,dark urine,pale colored stool,elevation of ALP and sonographic evidence of chledocholithiasis. | Ali Yaghoobi Notash Javad Salimi Farzaneh Golfam Gholamreza Habibi Kamyab Alizadeh | 2008 | Hepatobiliary & Pancreatic Diseases International2008,7,3: | 3 |
| 9 | 采用微分脉冲伏安法和碳纳米管改性电极测定咖啡因(英文)显示文摘A simple and sensitive electrochemical detection of caffeine(CAF) using a single-walled carbon nanotubes on carbon-ceramic electrode(SWCNT/CCE) is reported.CAF was oxidized at the surface of the modified electrode to produce an anodic peak at 1.38 V versus the saturated calomel electrode in 0.01 mol/L,pH 1.7 H2SO4 solution in cyclic voltammetry.The experimental parameters,namely,type of electrolyte,pH value,and amount of SWCNTs casted,were optimized.Using the optimum conditions,the anodic peak current in differential pulse voltammetry was linear with CAF concentration in the range of 2.5 × 10 7 1.0 × 10 4 mol/L.The detection limit was 1.2 × 10 7 mol/L(S/N = 3).The modified electrode exhibited good stability and can be easily regenerated.The relative standard deviation of the peak current obtained for a 5.0 × 10 5 mol/L CAF solution was 3.0%.The influence of some important biological compounds,namely,ascorbic acid,dopamine,and uric acid and addictive compounds like codeine,morphine,and acetaminophen on the CAF anodic peak current was examined.The method was successfully applied for the determination of CAF in some practical samples. | Biuck HABIBI Mehri ABAZARI Mohammad Hossien POURNAGHI-AZAR | 2012 | 催化学报2012,33,11: | 2 |
| 10 | Energy-based design method for seismic retrofitting with passive energy dissipation systems显示文摘 | Ali Habibi Ricky W.K. Chan Faris Albermani | 2013 | Engineering Structures2013,,: | 2 |
| 11 | Nano-grained pure copper with high-strength and high-conductivity produced by equal channel angular rolling process显示文摘 | Asiyeh Habibi Mostafa Ketabchi Mohammad Eskandarzadeh | 2011 | Journal of Materials Processing Tech2011,,6: | 2 |
| 12 | Early nutrition,postnatal growth retardation and outcome of VLBW infants 显示文摘 | Piehain C Habibi F Rigo J | 2007 | Arch Pediatr2007,14,1: | 1 |
| 13 | Sacculo-collic pathway dysfunction accompanying auditory neuropathy显示文摘 | Sheykholeslami K Schmerber S Habiby Kermany M | 2005 | Acta Otolaryngol2005,125,: | 1 |
| 14 | Inhibition of human hepatocar- cinoma cell proliferation by mammalian and fish gona- dotropin-releasing hormones 显示文摘 | PATI D HABIBI H R | 1995 | Endocrinology1995,136,1: | 1 |
| 15 | Image quality measure based on a human visual system model 显示文摘 | Saghri J A Cheatham P S Habibi A | 1989 | Op- tical Engineering1989,28,28: | 1 |
| 16 | TEM investigation of precipitation phenomena occurring in PH15-5 alloy显示文摘 | Habibi H R Servant C | 1993 | Acta Metal Mater1993,41,5: | 1 |
| 17 | A note on comax- imal graph of non-commutative rings显示文摘 | Akbari S Habibi M Majidinya A | 2013 | Algebras and Rep- resentation Theory2013,16,: | 1 |
| 18 | 查看详情显示文摘 | Habibi Y Lucia L. A Rojas O | | 0,,: | 1 |
| 19 | Cellulose nanocrystals:Chemistry,self-assembly,and applications显示文摘 | Habibi Y Lucia L A Rojas O J | | 0,,6: | 1 |
| 20 | Power flow control in grid-connected microgrid operation using particle swarm optimization under variable load conditions 显示文摘 | ALSAEDI W LACHOWICZ S W HABIBI D | 2013 | Electrical Power and Energy Systems2013,49,: | 1 |