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| 1 | Al6013/Mg搅拌摩擦焊接的材料流动及相变(英文)显示文摘研究搅拌摩擦焊接铝合金6013和纯镁板在接头界面处的材料流动及相变。将铝合金6013和纯镁板分别放置在焊缝的前进侧和返回侧,搅拌针放在焊缝中央偏向铝合金侧1mm处,可以获得无缺陷的焊缝。为了研究搅拌摩擦焊时材料流动情况,将钢丸嵌入焊接材料中作为示踪材料,焊接完成后,采用X射线分析钢丸在材料中的位置。结果表明,嵌在前进侧材料中的钢丸焊后进入了返回侧材料中,而嵌在返回侧材料中的钢丸仍留在返回侧中。对焊接试样进行热处理,研究热处理对焊接接头力学性能的影响和接头处金属间化合物层的生成情况。结果表明,在接头界面处生成了2种金属间化合物:Al3Mg2和Al12Mg17。 | Pooya POURAHMAD Mehrdad ABBASI | 2013 | Transactions of Nonferrous Metals Society of China2013,23,5: | 16 |
| 2 | Semi-hot Stamping as an Improved Process of Hot Stamping显示文摘Reducing the forming load,deletion of springback,increasing the formability of sheets as well as producing high strength parts are the main reasons to apply hot stamping process.Hot stamping process and 22MnB5 steels are the state of the art process and grades,respectively;however novel processes and steel grades are under considerations.In the current research,behavior of the steel grade MSW1200 blanks under semi and fully hot stamping processes was characterized.During semi-hot stamping process,the blank was firstly heated to a temperature of about 650℃ and then formed and quenched in the die assembly,simultaneously.Microstructure and mechanical properties of semi and fully hot stamped blanks were studied and the results were compared with those of normally water/air quenched blanks.The hot stamped blanks attained the strength values as high as water quenched blanks.The highest ductility and consequently,the best formability were achieved for the blank which had been semi-hot stamped.It was concluded that for the mentioned steel,semi-hot stamping process could be considered as an improved thermo-mechanical process which not only guaranteed a high formability,but also led to ultra high strength values. | Malek Naderi Mostafa Ketabchi Mahmoud Abbasi Wolfgang Bleck | 2011 | Journal of Materials Science & Technology2011,27,4: | 15 |
| 3 | HTML5安全研究显示文摘HTML5是目前富互联网应用(RIA)中最重要的技术之一。由于得到了业界厂商的大力支持,发展迅速,已经成为未来Web应用发展的事实标准。新技术的引用,在给用户提供丰富多彩互联网的同时,也引入了新的安全问题:CORS、XHR-LEVEL2等已经打破了浏览器原有的同源策略准则(SOP);Web Storage、Application Cache等新功能在增强客户端能力的同时,也提供了一些新型的客户端攻击机制;Web Workers、Web Socket等新特性则引入了新的滥用手段。在中国互联网上,越来越多的网站开始逐步采用HTML5技术,但在安全防护方面还存在众多弱点。与此同时,目前大多数Web应用扫描器都不具备检测HTML5安全问题的特性,这使得HTML5安全问题在安全评估与渗透测试过程中成为盲点。深入探讨HTML5新引入的安全威胁,通过对国内支持HTML5大型网站的测试发现了大量安全问题,并对现有Web应用扫描器对HTML5支持情况进行了调查分析,结果验证了国内互联网网站对于HTML5新形态安全威胁的脆弱性。 | 孙松柏 Ali Abbasi 诸葛建伟 段海新 王珩 | 2013 | 计算机应用与软件2013,30,3: | 11 |
| 4 | 烟酰胺磷酸核糖基转移酶促进肺血管重塑,是肺动脉高压的治疗靶点显示文摘肺动脉高压(pulmonary arterial hypertension,PAH)是一种严重的进行性疾病,其标志之一是肺血管重塑。烟酰胺磷酸核糖基转移酶(nicotinamide phosphoribosyl transferase,NAMPT)是调节细胞内烟酰胺腺嘌呤二核苷酸水平、细胞氧化还原状态,调节组蛋白脱乙酰酶,促进细胞增殖和抑制凋亡的一种细胞酶。研究人员假设NAMPT可促进肺血管重塑, | Chen J Sysol JR Singla S Zhao S Yamamura A Valdez-Jasso D Abbasi T Shioura KM Sahni S Reddy V Sridhar A Gao H Torres J Camp SM Tang H Ye SQ Comhair S Dweik R Hassoun P Yuan JX Garcia JG Machado RF 刘莉 叶鹏 | 2017 | 中华高血压杂志2017,25,2: | 10 |
| 5 | Hot Compression Behavior of As-Cast Precipitation-Hardening Stainless Steel显示文摘High temperature deformation characteristics of a semiaustenitic grade of precipitation-hardening stainless steels were investigated by conducting hot compression tests at temperatures of 900-1 100 ℃ and strain rates of 0.001-1 s-1. Flow behavior of this alloy was investigated and it was realized that dynamic recrystallization (DRX) was responsible for flow softening. The correlation between critical strain for initiation of DRX and deformation parameters including temperature and strain rate, and therefore, Zener-Hollomon parameter (Z) was studied. Metallographic observation was performed to determine the as-deformed microstructure. Microstructural observation shows that recrystallized grain size increases with increasing the temperature and decreasing the strain rate. The activation energy required for DRX of the investigated steel was determined using correlations of flow stress versus temperature and strain rate. The calculated value of activation energy, 460 kJ/mol, is in accordance with other studies on stainless steels. The relationship between peak strain and Z parameter is proposed. | A Momeni S M Abbasi A Shokuhfar | 2007 | Journal of Iron and Steel Research(International)2007,14,5: | 9 |
| 6 | Plant-derived anticancer agents: A green anticancer approach显示文摘Cancer is a frightful disease and represents one of the biggest health-care issues for the human race and demands a proactive strategy for cure. Plants are reservoirs for novel chemical entities and provide a promising line for research on cancer. Hitherto, being effective, chemotherapy is accompanied by certain unbearable side effects. Nevertheless,plants and plant derived products is a revolutionizing field as these are Simple, safer, ecofriendly, low-cost, fast, and less toxic as compared with conventional treatment methods.Phytochemicals are selective in their functions and acts specifically on tumor cells without affecting normal cells. Carcinogenesis is complex phenomena that involves many signaling cascades. Phytochemicals are considered suitable candidates for anticancer drug development due to their pleiotropic actions on target events with multiple manners. The research is in progress for developing potential candidates(those can block or slow down the growth of cancer cells without any side effects) from these phytochemicals. Many phytochemicals and their derived analogs have been identified as potential candidates for anticancer therapy. Effort has been made through this comprehensive review to highlight the recent developments and milestones achieved in cancer therapies using phytomolecules with their mechanism of action on nuclear and cellular factors. Furthermore, drugs for cancer treatment and their limitations have also been discussed. | Javed Iqbal Banzeer Ahsan Abbasi Tariq Mahmood Sobia Kanwal Barkat Ali Sayed Afzal Shah Ali Talha Khalil | 2017 | Asian Pacific Journal of Tropical Biomedicine2017,7,12: | 8 |
| 7 | Fabrication and characterization of Fe_3O_4@SiO_2@TiO_2@Ho nanostructures as a novel and highly efficient photocatalyst for degradation of organic pollution显示文摘In this work we synthesize a novel and highly efficient photocatalyst for degradation of methyl orange and rhodamine B. In addition, a new method for synthesis of Fe_3O_4@SiO_2@TiO_2@Ho magnetic core-shell nanoparticles with spherical morphology is proposed. The crystal structures, morphology and chemical properties of the as-synthesized nanoparticles were characterized using Fourier transform infrared spectroscopy(FT-IR), scanning electron microscopy(SEM), transmission electron microscopy(TEM), energy dispersive X-ray(EDS), X-ray diffraction(XRD), UV–vis diffuse reflectance spectroscopy(DRS) and vibrating sample magnetometer(VSM) techniques. The photocatalytic activity of Fe_3O_4@SiO_2@TiO_2@Ho was investigated by degradation of methyl orange(MO) as cationic dye and rhodamine B(Rh B) as anionic dye in aqueous solution under UV/vis irradiation. The results indicate that about 92.1% of Rh B and78.4% of MO were degraded after 120 and 150 min, respectively. These degradation results show that Fe_3O_4@SiO_2@TiO_2@Ho nanoparticles are better photocatalyst than Fe3O4@Si O2@TiO 2@Ho for degradation of MO and Rh B. As well as, the catalyst shows high recovery and stability even after several separation cycles. | Sobhan Mortazavi-Derazkola Masoud Salavati-Niasari Omid Amiri Ali Abbasi | 2017 | Journal of Energy Chemistry2017,26,1: | 8 |
| 8 | 大荨麻提取物对高胆固醇血症大鼠血脂的影响(英文)显示文摘目的:探讨大荨麻提取物对高胆固醇血症大鼠血脂的影响。方法:雄性大鼠口服高胆固醇饮食(10mL/kg)4周,制备高胆固醇血症大鼠模型。造模同时灌服100、300mg/kg大荨麻提取物或10mg/kg洛伐他汀。观察大荨麻提取物对大鼠血脂、肝功能和肝脏病理的影响。结果:100、300mg/kg大荨麻提取物可以明显减少高胆固醇血症大鼠血总胆固醇和低密度脂蛋白胆固醇含量,并可以降低丙氨酸氨基转移酶(alanine aminotransferase,ALT)和天冬氨酸氨基转移酶(aspartate aminotransferase,AST)活性。苏木精和伊红染色显示,100mg/kg大荨麻提取物组肝脏组织未见明显脂肪变性,细胞形态与对照组相似;300mg/kg大荨麻提取物组肝脏组织可见到中等程度的脂肪变性。结论:大荨麻提取物可能通过降低血浆胆固醇含量和血浆ALT、AST活性治疗大鼠高胆固醇血症。 | Marjan NASSIRI-ASL Farzaneh ZAMANSOLTANI Esmail ABBASI Mohammad-Mehdi DANESHI Amir-Abdollah ZANGIVAND | 2009 | 中西医结合学报2009,7,5: | 7 |
| 9 | Molybdenite alkali fusion and leaching:reactions and mechanism显示文摘从 Sarcheshmeh 辉钼矿的 MoO3 的生产经由一个 pyro-hydrometallurgical 过程专注 studied.The 辉钼矿专注并且钠碳酸盐是 premixed 并且在空气下面熔化了 atmosphere.Then 熔化产品在水里被沥滤,溶解的铝作为铵 molybdate.The 铵 molybdate 被恢复然后被锻烧生产 mo-lybdic oxide.At 熔化阶段。 | Reza Ebrahimi-Kahrizsangi Mohammad Hasan Abbasi Ali Saidi | 2010 | International Journal of Minerals,Metallurgy and Materials2010,17,2: | 7 |
| 10 | Improvement of Mechanical Properties of Cr-Ni-Mo-Cu-Ti Stainless Steel With Addition of Vanadium显示文摘The effect of vanadium (V) addition on the mechanical properties of a Cr-Ni-Mo-Cu-Ti stainless steel was studied and its influence on microstructural changes was also investigated. Results indicate that the structure of the solution-treated specimens mainly comprises of austenite-martensite, and adding V leads to the formation of a considerable amount of ferrite. Under this condition, austenite phase is not mechanically stable, and transforms to martensite by plastic deformation. The addition of 0.5% - 1.0% (in mass percent) of V increases the hardness and the strength of the 80% cold rolled and aged steel, without any effect on ductility. Improvement in mechanical properties is presumably attributed to the formation of a small amount of ferrite in the primary structure, and the formation of certain precipitates is accelerated by the addition of V during aging. By contrast, excessive V decreases the strength and ductility simultaneously. This is due to the strong effect of ferrite formation compared to the beneficial effect of precipitation. The loss of ductility caused by adding higher amount of V is due to the formation of ferrite phases which in turn are suitable nucleation sites for crack propagation. | S M Abbasi A Shokuhfar | 2007 | Journal of Iron and Steel Research(International)2007,14,6: | 7 |
| 11 | Microstructural Evolution of Nb–V–Mo and V Containing TRIP-assisted Steels during Thermomechanical Processing显示文摘The microstructural evolution and precipitation behaviour of Nb–V–Mo and single V containing transformation induced plasticity assisted steels were investigated during thermomechanical processing. A plane strain compression testing machine was used to simulate the thermomechanical processing. Microstructures were characterised by optical microscopy, scanning-transmission electron microscopy and microanalysis, and X-ray diffraction analysis, and Vickers hardness was obtained from the deformed specimens. The resulting microstructure of both Nb–V–Mo and V steels at room temperature primarily consisted of an acicular/bainitic ferrite, retained austenite and martensite surrounded by allotriomorphic ferrite.The TEM analysis showed that a signi?cant number of Nb(V,Mo)(C,N) precipitates were formed in the microstructure down to the ?nishing stage in Nb–V–Mo steel(i.e. 830 °C). It was also found that the V(C,N)precipitation primarily occurred in both ferrite and deformed austenite below the ?nishing stage. The results suggested that Nb–Mo additions considerably increased the temperature stability of microalloy precipitates and controlled the microstructural evolution of austenite. However, the microalloy precipitation did not cause a signi?cant precipitation strengthening in both Nb–V–Mo and V steels at room temperature. | Erfan Abbasi William Mark Rainforth | 2017 | Journal of Materials Science & Technology2017,33,4: | 7 |
| 12 | 第二相粒径和振动对FSP制备AZ91/SiC表面复合层的影响显示文摘采用改进的搅拌摩擦加工方法(FSP)加工AZ91镁合金试样。这种新方法称为“振动搅拌摩擦加工方法(FSVP)”。SiC纳米颗粒作为第二相粒子,利用FSP和FSVP制备合金的表面复合层,研究不同粒径(30 nm和300 nm)的SiC强化颗粒对复合材料表面不同性能的影响。结果表明,采用FSVP工艺能细化材料的显微组织,提高材料的硬度、延展性和强度等力学性能。粒径为30 nm的增强颗粒对复合材料显微组织和力学性能的影响大于粒径为300 nm的增强颗粒。振动频率越高,FSV试样的力学性能和显微组织越好;当FSV振动频率为50和25 Hz时,搅拌区硬度值分别约为157和116 MPa。 | Behrouz BAGHERI Mahmoud ABBASI Amin ABDOLLAHZADEH Seyyed Ehsan MIRSALEHI | 2020 | Transactions of Nonferrous Metals Society of China2020,30,4: | 6 |
| 13 | Peristaltic flow in an asymmetric channel with convective boundary conditions and Joule heating显示文摘The peristaltic transport of viscous fluid in an asymmetric channel is concentrated. The channel walls exhibit convective boundary conditions. Both cases of hydrodynamic and magnetohydrodynamic(MHD) fluids are considered. Mathematical analysis has been presented in a wave frame of reference. The resulting problems are non-dimensionalized. Long wavelength and low Reynolds number approximations are employed. Joule heating effect on the thermal equation is retained. Analytic solutions for stream function and temperature are constructed. Numerical integration is carried out for pressure rise per wavelength. Effects of influential flow parameters have been pointed out through graphs. | Abbasi Fahad Munir Hayat Tasawar Ahmad Bashir | 2014 | Journal of Central South University2014,21,4: | 5 |
| 14 | 利用水/氧化锌纳米流体改善平板太阳能集热器的性能显示文摘本文通过实验研究了水/氧化锌纳米流体作为工作流体对太阳能集热器性能的影响,其中纳米粒子的体积浓度为0.4%,粒径为40 nm,流体的质量流量为1~3 kg/min。平板集热器吸收的太阳能被水/氧化锌纳米流体吸收,纳米流体被泵送到热交换器对水进行加热。测量设备不同部位的温度、辐射水平、流量和压力,使用ASHRAE标准来计算效率,结果表明:与水相比,使用水/氧化锌纳米流体可提高集热器的性能;当质量流量为1 kg/min时,与水相比,纳米流体可使集热器效率提高16%。 | SHOKRGOZAR ABBASI Ali KHAN Aghaiy Naser | 2021 | Journal of Central South University2021,28,11: | 5 |
| 15 | Characterization of Embryonic Stages through Variations in the Egg's Contents in Spodoptera fitura显示文摘 | F. Perveen H. Ahmed F. M. Abbasi N. Y. Siddiqui A. Gul | 2010 | Journal of Agricultural Science and Technology2010,4,5: | 5 |
| 16 | Numerical Investigation of Fuel Dilution Effects on the Performance of the Conventional and the Highly Preheated and Diluted Air Combustion Furnaces显示文摘这数字研究调查使用冲淡的燃料的效果(在在常规燃烧(有在 300 和 1273 K 的21% O 2的空气)和高度预热并且冲淡的空气的几个案例下面的一个工业炉子的50%天然气和50% N 2)(有10% O 2的 1273 K 并且用一台内部计算机的90% N 2)燃烧( HPDAC )条件编程序。由使用联合冲淡的燃料和氧化剂而不是他们的自由或未经冲淡的状态,最好的条件为 HPDAC 的主要唯一的特征的建立被获得,这被发现。这些特征是低吝啬、最大的煤气的温度和高放射 / 总数热转移到气体和试管;象他们的更多的一致性一样,导致的分布在没有 在炉子效率或精力节省的 x 污染物质形成和增加。而且,许多化学火焰形状,过程液体和试管围温度侧面,要求的改革者效率并且最后,集中和速度模式有也是学习的品质上 / 份量上。 | Kiomars Abbasi Khazaei Ali Asghar Hamidi Masoud Rahimi | 2009 | Chinese Journal of Chemical Engineering2009,17,5: | 4 |
| 17 | CRISPR/Cas9-introduced single and multiple mutagenesis in strawberry显示文摘CRISPR/Cas9-mediated genome editing is a powerful tool for life science research.Recently,strawberry (Fragaria × ananassa),an important horticultural crop,has emerged as a model organism for investigating the regulatory mechanisms of fruit development and ripening (Shulaev et al.,2011;Jia et al.,2013,2017;Kang et al.,2013;Han et al.,2015).While most cultivated strawberries (e.g.,F.× ananassa)are octoploid,most wild strawberries (e.g.,F.vesca)are diploid.Although CRISPR/Cas9 methods have been established in many plants,the use of this tool in strawberry needs to be further explored (Zhou et al.,2018). | Sinian Xing Meiru Jia Lingzhi Wei Wenwen Mao Usman Ali Abbasi Yaoyao Zhao Yating Chen Minglin Cao Kai Zhang Zhengrong Dai Zhechao Dou Wensuo Jia Bingbing Li | 2018 | Journal of Genetics and Genomics2018,45,12: | 4 |
| 18 | Sedimentary facies interpretation of Gamma Ray(GR)log as basic well logs in Central and Lower Indus Basin of Pakistan显示文摘Rocks and most type of soils emit Gamma Ray(GR) in varying amount.The emitting elements of primary gamma radiations include potassium 40,uranium,and thorium which are associated with rocks forming minerals in variable amount.GR log is used to predict the varying lithology in borehole by measuring the spontaneous emission of GR radiation from rocks.Role of GR logs in the identification of subsurface facies is the main focused research theme of this manuscript including with objective of brief introduction of GR log and its applications in the identification of facies in the field of Petroleum Geosciences by analyzing the examples of GR log(s) from wells,Lower Indus Basin,Pakistan. | Adeel Nazeer Shabeer Ahmed Abbasi Sarfraz Hussain Solangi | 2016 | Geodesy and Geodynamics2016,7,6: | 4 |
| 19 | 振动搅拌摩擦焊镁合金动态再结晶过程的模拟与实验研究显示文摘采用二维元胞自动机(CA)模型分析机械振动对AZ91合金在搅拌摩擦焊(FSW)过程中组织演变的影响。将模拟结果,即晶粒拓扑结构、粒度分布、平均晶粒度以及动态再结晶(DRX)分数与实测数据进行比较。结果显示,有限元分析结果与实验数据具有充分的相似性,CA方法可用于搅拌摩擦焊AZ91合金组织演变的分析。与FSW相比,振动搅拌摩擦焊(FSVW)处理的样品中位错密度更高,形核和晶粒长大也更快。对FSVW过程中不同振动频率下的晶粒度改变和DRX现象经过详细模拟后发现,振动使形核开始时间提前,随着振动频率的提高,孕育期和再结晶的比例降低。 | Mahmoud ABBASI Behrouz BAGHERI Farzaneh SHARIFI | 2021 | Transactions of Nonferrous Metals Society of China2021,31,9: | 4 |
| 20 | Identification of Hydrocarbon Potential of Talhar Shale: Member of Lower Goru Formation Using Well Logs Derived Parameters, Southern Lower Indus Basin, Pakistan显示文摘Using well logs data only, the evaluation of shale gas hydrocarbon potential of Talhar Shale Member of Lower Goru Formation has been a challenge in Southern Lower Indus Basin in Pakistan. Well logs data analysis is helpful to evaluate the gas potential of source shale rocks. We introduced and applied empirical and graphical method to fulfil this task and derived geochemical parameters from well logs data. The method mentioned is cheap and fast. Talhar Shale has kerogen type III and type II which are montmorillonite clay and have potential to produce oil and gas. Talhar Shale has better sorption property. Empirical formulas are used to derive parameters, using well logs of porosity, density and uranium. Porosity and volume of kerogen, calculated from density log, give average values of 11.8% and 11.4%. Average value of level of maturity index(LMI) derived from log is 0.54, which indicates that it is at the early stage of maturity. Vitrinite reflectance is between 0.5%–0.55% as calculated by graphical method and empirical formula. Talhar Shale is at onset of oil generation, with main products of oil and gas. It is a good potential source in the study area. | Muhsan Ehsan Hanming Gu Malik Muhammad Akhtar Saiq Shakeel Abbasi Zaheen Ullah | 2018 | Journal of Earth Science2018,29,3: | 4 |