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| 1 | NIHSS绝对值变化与NIHSS变化率对脑梗死患者残疾预测能力的比较研究显示文摘目的探讨美国国立卫生研究院卒中量表(NIHSS)绝对值的变化与NIHSS变化率对脑梗死患者功能残疾的预测价值。方法采用前瞻性设计对10个临床研究中心急性期脑梗死患者的数据进行分析,筛选出入院当天、发病90d NIHSS评分和BI数据资料完整患者953例,按入院时NIHSS评分分为轻、中、重度,以BI作为功能残疾疗效判定'金标准',应用ROC比较NIHSS绝对值变化与NIHSS变化率对患者功能残疾的判断价值。结果轻、中、重度患者AUC曲线下面积分别为0.60、0.76、0.93,与AUC曲线下面积=0.50比较,中、重度患者差异有统计学意义(P<0.05)。NIHSS变化率在轻、中、重度患者中分别为0.76、0.85、0.97,与AUC曲线下面积=0.50比较,差异均有明显统计学意义(P<0.01)。脑梗死患者良好功能结局的最佳NIHSS绝对值变化的界值在轻、中、重度患者中分别为2.5、4.5、14.5;敏感性分别为0.57、0.92、1.00,特异性分别为0.61、0.50、0.89;NIHSS变化率的界值在轻、中、重度患者中分别为70.8%、74.7%、84.9%;敏感性分别为0.63、0.82、1.00,特异性分别为0.78、0.75、0.94。结论 NIHSS绝对值变化、NIHSS变化率对患者功能残疾的预测能力随着神经功能缺损程度的增加而增大,而后者对结局预测能力更佳。 | 王平平 高颖 刘璐 马斌 曹克刚 辛喜艳 张杨 ShaPour Badiee Aval Baghyahi | 2011 | 中风与神经疾病杂志2011，28，2： | 52 |
| 2 | 焊接热输入和后续热处理对AA7075-AA5086异种搅拌摩擦焊接头显微组织和力学性能的影响(英文)显示文摘研究焊接热输入和后续热处理对时效硬化AA7075-T6合金和应变硬化AA5086-H32合金异种搅拌摩擦焊接接头显微组织和力学性能的影响。采用X射线残余应力分析、拉伸测试、光学金相分析以及透射电子显微分析研究工艺参数对焊接接头的影响。结果表明,与其他焊接接头相比,无散热片焊接的接头搅拌区更均匀。在所研究的自然时效时间范围内,焊接接头在快速冷却过程中高的固溶度将产生更大的驱动力,这也导致在自然时效过程中,AA7075的硬度增加。自然时效使AA7075搅拌区和热力影响区的残余应力减小10~25 MPa。该影响在无散热片焊接的接头中明显减小。此外,自然时效对接头强度无明显影响。 | Jamshidi Aval HAMED | 2017 | Transactions of Nonferrous Metals Society of China2017，27，8： | 6 |
| 3 | Microstructural evolution and mechanical properties of friction stir-welded C71000 copper–nickel alloy and 304 austenitic stainless steel显示文摘Dissimilar joints comprised of copper–nickel and steel alloys are a challenge for manufacturers in modern industries, as these metals are not thermomechanically or chemically well matched. The present study investigated the effects of tool rotational speed and linear speed on the microstructure and mechanical properties of friction stir-welded C71000 copper–nickel and 340 stainless steel alloys using a tungsten carbide tool with a cylindrical pin. The results indicated that a rotational-to-linear speed ratio of 12.5 r/mm did not cause any macro defects, whereas some tunneling defects and longitudinal cracks were found at other ratios that were lower and higher. Furthermore, chromium carbide was formed on the grain boundaries of the 304 stainless steel near the shoulder zone and inside the joint zone, directing carbon and chromium penetration toward the grain boundaries. Tensile strength and elongation percentages were 84% and 65% of the corresponding values in the copper–nickel base metal, respectively. | Hamed Jamshidi Aval | 2018 | International Journal of Minerals,Metallurgy and Materials2018，25，11： | 6 |
| 4 | 摩擦堆焊AA2024-Ag复合材料的显微组织表征与力学性能显示文摘研究银对摩擦堆焊AA2024铝合金涂层显微组织、力学性能和电导率的影响。银添加方式为先在AA2024铝合金耗材棒横截表面钻孔,再在孔内填充银粉,其添加量为5.3、10.6和16.0%(质量分数)。结果表明,固溶强化、析出相和含银金属间化合物的形成降低晶粒生长的驱动力,从而降低涂层中的晶粒尺寸。经人工时效热处理后,含0%Ag(质量分数)涂层的电导率提高了4.15%(IACS),而含16.0%Ag(质量分数)涂层的电导率降低2.15%(IACS)。当考虑线性关系时,在银含量Ag增加1%(质量分数)的条件下,涂层的强度和硬度分别增加1.8%和1.0%。Al6(Cu,Ag)Mg4析出相的形成比富Ag金属间化合物的形成对强化的影响更大。 | Parisa PIRHAYATI Hamed JAMSHIDI AVAL | 2020 | Transactions of Nonferrous Metals Society of China2020，30，7： | 5 |
| 5 | 复合铸造A390/SiC复合材料的显微组织、力学和摩擦学性能(英文)显示文摘采用复合铸造法制备10 wt.%SiC增强的A390铝合金复合材料。研究复合铸造的温度、时间和搅拌速度对复合材料显微组织、力学性能和摩擦学性能的影响。结果表明,当转速从450提高到550r/min时,碳化硅颗粒的分布更加均匀。由于气体的吸收,材料的孔隙率突然增大,导致随着搅拌速度从550增加到650r/min时,伸长率下降。此外,随着搅拌时间的增加,原始硅颗粒团聚体的数量减少,显微组织中碳化硅和硅颗粒分布更加均匀。虽然复合铸造试样的断裂模式是脆性断裂和韧性断裂的复合,但其主要断裂机理是韧性断裂。与低温磨损试验相比,在高温下材料摩擦表面形成的保护层可导致极低的磨损率。得到最佳的颗粒均匀性和力学性能的工艺参数为:610°C、550 r/min和20 min。 | Javad MOHAMADIGANGARAJ Salman NOUROUZI Hamed JAMSHIDI AVAL | 2019 | Transactions of Nonferrous Metals Society of China2019，29，4： | 3 |
| 6 | New concept and procedure for reliability assessment of an IEC 61850 based substation and distribution automation considering secondary device faults显示文摘聪明的格子是一个电源格子由处理在分发变压器,变电所变压器,分发切换设备和聪明的米监视象电流,电压,电源,和精力那样的属性的广泛的监视系统组成。有先进通讯技术的聪明的格子能被用于象效率和可靠性改进那样的几个目的。IEC 61850 是在为分发和变电所自动化的聪明的格子领域的核心标准。这份报纸用 IEC 61850 介绍现代变电所和分发系统的视觉。网络操作员主要假设现代变电所和分发系统基于 IEC 61850 是可靠的为一操作长期。然而,类似于任何另外的系统,因为运作的失败或老化失败,实现的 IEC 61850 可能失败。这份报纸为现代变电所和分发系统的可靠性评估建议一个新奇方法。典型 IEC 61850 基于分发,变电所系统被开发并且分析了使用建议方法。差错树分析(FTA ) 被用来确定系统的可靠性。这种技术在罗伊·比林顿测试系统(RBTS ) 上被实现并且示威。分析进一步与一种 breaker-and-a-half 配置在一个 400/63 kV 变电所上被扩大。另外,这种技术证明在不同操作下面柔韧。结果验证建议方法的可行性和适用性。 | Hosein HAYATI Amir AHADI Seyed Mohsen MIRYOUSEFI AVAL | 2015 | Frontiers in Energy2015，9，4： | 3 |
| 7 | Effectiveness of two conventional methods for seismic retrofit of steel and RC moment resisting frames based on damage control criteria显示文摘This study investigates the efficiency of two types of rehabilitation methods based on economic justification that can lead to logical decision making between the retrofitting schemes. Among various rehabilitation methods, concentric chevron bracing(CCB) and cylindrical friction damper(CFD) were selected. The performance assessment procedure of the frames is divided into two distinct phases. First, the limit state probabilities of the structures before and after rehabilitation are investigated. In the second phase, the seismic risk of structures in terms of life safety and financial losses(decision variables) using the recently published FEMA P58 methodology is evaluated. The results show that the proposed retrofitting methods improve the serviceability and life safety performance levels of steel and RC structures at different rates when subjected to earthquake loads. Moreover, these procedures reveal that financial losses are greatly decreased, and were more tangible by the application of CFD rather than using CCB. Although using both retrofitting methods reduced damage state probabilities, incorporation of a site-specific seismic hazard curve to evaluate mean annual occurrence frequency at the collapse prevention limit state caused unexpected results to be obtained. Contrary to CFD, the collapse probability of the structures retrofitted with CCB increased when compared with the primary structures. | Seyed Bahram Beheshti Aval Hamed Sadegh Kouhestani Lida Mottaghi | 2017 | Earthquake Engineering and Engineering Vibration2017，16，3： | 3 |
| 8 | 原位AA2024-Al_(3)NiCu复合材料的非等温时效行为显示文摘研究非等温时效处理对搅拌铸造原位AA2024-Al_(3)NiCu复合材料显微组织和力学性能的影响。在搅拌铸造过程中加入3%(质量分数)的镍粉,铸造后在500℃均匀化热处理24 h,得到Al_(3)NiCu金属间化合物。光学显微镜和扫描电镜观察结果表明,经非等温时效处理后,S-Al_(2)CuMg析出相得到细化,在枝晶之间形成该析出相的贫相区。在搅拌铸造过程中添加镍,降低S-Al_(2)CuMg析出相的析出速率及其在非等温时效处理过程中对复合材料的强化作用。含3%镍的样品在250℃非等温时效处理后可获得最大的硬度、极限抗拉强度和韧性,分别为:(121.30±4.21) HV,(221.67±8.31) MPa和(1.67±0.08) MJ/m^(3)。与不含镍的AA2024铝合金相比,AA2024-Al_(3)NiCu复合材料的最大硬度和极限抗拉强度分别降低6%和4%。 | Ramezanali FARAJOLLAHI Hamed JAMSHIDI AVAL Roohollah JAMAATI | 2022 | Transactions of Nonferrous Metals Society of China2022，32，7： | 2 |
| 9 | Comprehensive Composite Inelastic Fiber Element for Cyclic Analysis of Concrete-Filled Steel Tube Columns显示文摘 | S. B. B. Aval M. A. Saadeghvaziri A. A. Golafshani | 2002 | Journal of Engineering Mechanics2002，，4： | 2 |
| 10 | ROC曲线分析NIHSS的变化率预测脑梗死患者功能残疾的可行性显示文摘目的通过对美国国立卫生研究院卒中量表(NIHSS)评分变化率的分析试图为脑梗死临床结局评价方法的选择提供一种新的思路与方法。方法本项研究采取前瞻性设计对来自10个临床研究中心急性期脑梗死住院患者的数据内容进行分析,筛选出入院当天NIHSS评分、发病90 d NIHSS评分和BI数据资料完整患者953例,将患者按入院时NIHSS评分分为3级:轻度(〈7分)、中度(7分-15分)、重度(〉15分),以BI作为功能残疾的疗效判定"金标准",发病90 d BI≥95分为预后良好、BI〈95分为预后不良的分界点将BI转换为二分类变量(残疾与否),应用ROC曲线了解NIHSS的变化率对脑梗死患者发病90天功能残疾的判断价值。结果本研究发现NIHSS变化率预测脑梗死患者发病90 d功能残疾的AUC曲线下面积均〉0.70,轻度患者为0.76、中度患者为0.85,重度患者为0.97,与AUC曲线下面积=0.50进行比较,差异有统计学意义(P≤0.001)。预测脑梗死患者良好功能结局的最佳NIHSS变化率的截断值在轻度、中度、重度神经功能缺损的患者分别为70.8%、74.7%、84.9%;其灵敏度在三者分别为63.0%、81.8%、100.0%,特异度分别为78.1%、75.4%、94.3%。结论 NIHSS的变化率对脑梗死患者发病90 d功能残疾具有较好的预测能力,且这种预测能力随着神经功能缺损程度的增加而增大。 | 王平平 高颖 刘璐 马斌 曹克刚 辛喜艳 Shapour Badiee Aval Baghyahi | 2011 | 中西医结合心脑血管病杂志2011，9，4： | 2 |
| 11 | The oxygen and chlorine evolution reactions at titanium oxide electrodes modified with platinum 显示文摘 | Rojas MI Esplandiu MJ Avalle LB | 1998 | Electrochimica Acta1998，43，1213： | 1 |
| 12 | Extracorporeal membrane oxy- genation to support adult patients with cardiac failure:predictive factors of 30-day mortality 显示文摘 | Formica F Avalli L Colagrande L | 2010 | Interact Cardiovasc Thorac Surg2010，10，5： | 1 |
| 13 | Successful versus failed adaptation to high-fat diet-induced insulin resistance:the role of IAPP-induced beta-cell endoplasmic reticulum stress显示文摘 | Matveyenko AV Gurlo T3)aval M | 2009 | Diabetes''2009，58，4： | 1 |
| 14 | Determination of phospholipids in dairy products by SPE/HPLC/ELSD显示文摘 | Avalli A Contarini G | 2005 | J Chromatogr A2005，1071，12： | 1 |
| 15 | Determination of phospholipids in dairy prod-ucts by SPE/HPLC/ELSD 显示文摘 | Avalli A Contarini G | 2005 | Journal of Chromatography A2005，1071，1： | 1 |
| 16 | Casting defects and fatigue strength of a die cast aluminium alloy:a comparison between standard specimens and production components显示文摘 | Avalle M Belingardi G Cavatorta M P | 2002 | International Journal of Fatigue2002，24，1： | 1 |
| 17 | Design Optimization by Response Surface Methodology Application to Crashworthiness Design of Vehicle Structures显示文摘 | Avalle M Chiandussi G Belingardi G | 2002 | Structural and Multidisciplinary Optimization2002，4，4： | 1 |
| 18 | Comprehensive composite inelastic fiber element for cyclic analysis of concrete-filled steel tube columns 显示文摘 | Aval S B B Saadeghvaziri M A Golafshani A A | 2002 | Journal of Engineering Mechanics2002，128，4： | 1 |
| 19 | Maximization of the crushing performance of a tubular device by shape optimization 显示文摘 | Giorgio Chiandussi Massimiliano Avalle | 2002 | Computers and Structures2002，80，2730： | 1 |
| 20 | Static and fatigue strength of a die-cast aluminium alloy under different feeding condition显示文摘 | Avalle M Belingardi G Cavatorta M P | 2002 | Journal of Materials:Design and Applications2002，216，： | 1 |
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