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| 1 | Effect of cerium/lanthanum addition on microstructure and mechanical properties of Al7075 alloy via mechanical alloying and sintering显示文摘The effect of the Al-6Ce-3La(ACL) on the microstructural behavior of the Al7075 was investigated. Materials were synthesized by mechanical alloying with variation in the ACL content and milling time. Products were characterized and studied in the as-milled condition and mechanically evaluated after sintering. The synergetic effect of milling time and ACL content in the modified materials led to a reduction in the particle size. Results from electron microscopy showed a homogeneous dispersion of Ce/La phases up to 20 wt.% of ACL content after 10 h of milling. Mechanical evaluation under compressive test showed an improved performance for those alloys reinforced with 0.2 wt.% and 0.5 wt.% of ACL. | R.Pérez-Bustamante A.Reyna-Cruz D.C.Acosta-Pena C.R.Santillán-Rodríguez J.A.Matutes-Aquino F.Pérez-Bustamante M.C.Maldonado-Orozco J.Aguilar-Santillán R.Martínez-Sánchez | 2016 | Journal of Rare Earths2016，34，4： | 2 |
| 2 | Cost and Profit Efficiency in European Banks显示文摘 | Maudos J J.Pastor F.Pérez J.Quesada | | 0，，： | 1 |
| 3 | 低阻尼碰撞中粒子交换的关联性和丰中子流显示文摘 | D.Schüll 沈文庆 H.Freiesleben F.Busch D.Bangert F.Pühlhofer | 1983 | 高能物理与核物理1983，，02： | 1 |
| 4 | SVM Multiregression for Nonlinear Channel Estimation in Multiple-input Multiple-output Systems显示文摘 | M.P.Sánchez-Fernández M.de Prado-Cumplido J.Arenas-García F.Pérez-Cruz | | 0，，08： | 1 |
| 5 | Productivity in the tourism industry显示文摘 | Barros C.P Alves F.P | | 0，，03： | 1 |
| 6 | Recycling of compatibilized and uncompatibilized nylon/polypropylene blends显示文摘 | F.P La Mantia L Capizzi | 2001 | Polymer Degradation and Stability2001，，2： | 1 |
| 7 | They don't do it often,but they do it well:Exploring the relationship between applicant mental abilities and faking显示文摘 | Levashina J Morgeson F.P Campion M.A | | 0，，03： | 1 |
| 8 | Safety at work:a meta-analytic investigation of the link between job demands,job resources,burnout,engagement,and safety outcome显示文摘 | Nahrgang J.D Morgeson F.P Hofman D.A | | 0，，01： | 1 |
| 9 | 在碱性体系中用NH_4OH浸出赤铜矿(英文)显示文摘在酸性条件下,赤铜矿是一种难浸出的氧化物,最大浸出率仅为50%。本文作者研究在氨性介质中浸出赤铜矿的可行性。所研究的实验条件为液固比(120:1~400:1mL/g)、溶液搅拌速度(0~950r/min)、温度(10~45°C)和NH_4OH浓度(0.05~0.15mol/L)。此外,还对不同的氨性试剂(NH_4F和(NH_4)_2SO_4)的作用进行分析。实验是在带有加热套和冷凝器的2L反应器中进行的。最重要的结果是,在pH10.5、NH_4OH浓度0.10mol/L、浸出温度45°C、浸出时间4 h、搅拌速度850 r/min、液固比400:1的条件下,达到82%的最大浸出率。这一结果与溶液中四氨合铜离子(Cu(NH_3)_4^(2-))的形成使得铜不会生成沉淀有关。液固比和溶液搅拌速度是提高赤铜矿浸出率的关键参数。虽然最大浸出率是在较高温度下实现的,但在接近水冰点的温度下也发生了显著的浸出,4h浸出率达17.9%。随着NH_4OH浓度的增大和粒径的减小,Cu_2O的浸出率增大。本文研究两种氨性试剂(NH_4F和(NH_4)_2SO_4),与氢氧化铵相比,它们对铜的浸出率较低。Cu_2O浸出的动力学符合表面化学反应模型,相对于氢氧化铵浓度的反应级数为1.8,表观反应速率常数与颗粒半径成反比。在10~45°C温度范围内,计算得到的活化能为44.36 kJ/mol。 | A.ARACENA F.PéREZ D.CARVAJAL | 2018 | Transactions of Nonferrous Metals Society of China2018，28，12： | 1 |
| 10 | Canine hepatozoonosis in Brazil: description of eight naturally occurring cases显示文摘 | Lu??s F.P Gondim Aguemi Kohayagawa Nayro X Alencar Alexander W Biondo Regina K Takahira S?nia R.V Franco | 1998 | Veterinary Parasitology1998，，2： | 1 |
| 11 | 查看详情显示文摘 | Alt F.P Bohm L.L Enderle H.F Berthold J | | 0，，： | 1 |
| 12 | Prospective multicentre clinical trial of stapled transanal rectal resection for obstructive defaecation syndrome显示文摘 | A.Arroyo F. X.González‐Argenté M.García‐Domingo E.Espin‐Basany F.De‐la‐Portilla F.Pérez‐Vicente R.Calpena | 2008 | Br J Surg2008，，12： | 1 |
| 13 | Influence of steel fibres on strength and ductility of normal and lightweight high strength concrete显示文摘 | R.V Balendran F.P Zhou A Nadeem A.Y.T Leung | 2002 | Building and Environment2002，，12： | 1 |
| 14 | Study on effect of jellyfish collagen hydrolysate on anti-fatigue and anti-oxidation显示文摘 | Ding J.F Li Y.Y Xu J.J Su X.R Gao X Yue F.P | | 0，，： | 1 |
| 15 | Vanadium oxide surface studies显示文摘 | S Surnev M.G Ramsey F.P Netzer | 2003 | Progress in Surface Science2003，，4： | 1 |
| 16 | Immunohistochemically proven cytomegalovirus end‐organ disease in solid organ transplant patients: clinical features and usefulness of conventional diagnostic tests显示文摘 | A.Fica C.Cervera N.Pérez M.A.Marcos J.Ramírez L.Linares G.Soto M.Navasa F.Cofan M.J.Ricart F.Pérez‐Villa T.Pumarola A.Moreno | 2007 | Transplant Infectious Disease2007，，3： | 1 |
| 17 | A survey of children’s acute, recurrent, and chronic pain: validation of the Pain Experience Interview显示文摘 | Patricia A McGrath Kathy N Speechley C.E Seifert J.T Biehn A.E.L Cairney F.P Gorodzinsky G.L Dickie P.J McCusker J.R Morrissy | 2000 | Pain2000，，1： | 1 |
| 18 | Generation of Leishmania donovani axenic amastigotes: their growth and biological characteristics显示文摘 | Alain Debrabant Manju B Joshi Paulo F.P Pimenta Dennis M Dwyer | 2003 | International Journal for Parasitology2003，，2： | 1 |
| 19 | The development of leader-member exc hanges:Exploring how personality and performance influence leader and member relationships over time显示文摘 | Nahrgang J.D Morgeson F.P Hies R | | 0，，02： | 1 |
| 20 | Oil-acrylic hybrid latexes as binders for waterborne coatings显示文摘 | E.M.S Van Hamersveld J.J.G.S Van Es A.L German F.P Cuperus P Weissenborn A.-C Hellgren | 1999 | Progress in Organic Coatings1999，，1： | 1 |
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