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| 1 | 等径角挤压晶粒细化技术对纯铝显微组织演变、力学性能和腐蚀行为的影响(英文)显示文摘在室温下,采用等径角挤压法加工纯铝样品10道次。研究等径角挤压道次数对加工样品显微组织演变、力学性能、变形均匀性和腐蚀行为的影响。所施加的应变导致晶粒尺寸明显减小,等径角挤压前,晶粒尺寸为390μm,经等径角挤压2、4和10道次后,晶粒尺寸分别减小至1.8、0.4和0.3μm。随着等径角挤压道次数的增加,显微硬度、变形均匀性和拉伸强度增大,而伸长率下降。浸泡试验、开路电势、Tafel极化、循环极化和恒电位测试表明,与铸态样品相比,在3.5%Na Cl溶液中,经等径角挤压样品的耐蚀性明显提高。增加挤压道次数能成功用来生产具有高错位角、高力学性能和耐蚀性的超细晶大块纯铝。 | Mohamed Ibrahim ABD EL AAL M.M.SADAWY | 2015 | Transactions of Nonferrous Metals Society of China2015，25，12： | 6 |
| 2 | 纯铝等径角挤压及等径角挤压和直接挤压结合的塑性变形3D有限元模拟和实验验证(英文)显示文摘对纯铝进行等径角挤压、等径角挤压结合不同挤压比直接挤压及直接挤压,并采用刚-粘塑性3D有限元模拟进行分析。利用3D有限元模拟研究不同成形过程变形Al-1080的载荷-位移行为、塑性变形特征和有效塑性应变均匀性。用显微组织观察、显微硬度分布图、有效塑性应变和显微硬度值验证模拟结果。结果表明:模拟结果与实验结果一致;模拟载荷-位移曲线和最大载荷与实验结果接近;显微硬度分布图符合有效塑性应变等高线,证实了3D有限元模拟结果。等径角挤压工件的变形均匀性程度比其他变形过程的高。根据平均有效塑性应变计算了显微硬度值。预测显微硬度值与实验结果吻合。横向和纵向显微组织观察验证了不同成形过程中3D有限元模拟有效塑性应变和显微硬度分布结果。 | Mohamed Ibrahim Abd EL AAL | 2017 | Transactions of Nonferrous Metals Society of China2017，27，6： | 5 |
| 3 | Improvement of geotechnical properties of sabkha soil utilizing cement kiln dust显示文摘Improvement of properties of weak soils in terms of strength,durability and cost is the key from engineering point of view.The weak soils could be stabilized using mechanical and/or chemical methods.Agents added during chemical stabilization could improve the engineering properties of treated soils.Stabilizers utilized have to satisfy noticeable performance,durability,low price,and can be easily implemented.Since cement kiln dust(CKD) is industrial by-product,it would be a noble task if this waste material could be utilized for stabilization of sabkha soil.This study investigates the feasibility of utilizing CKD for improving the properties of sabkha soil.Soil samples are prepared with 2% cement and 10%,20% or 30% CKD and are tested to determine their unconfined compressive strength(UCS),soaked California bearing ratio(CBR) and durability.Mechanism of stabilization is studied utilizing advanced techniques,such as the scanning electron microscope(SEM),energy dispersive X-ray analysis(EDX),backscattered electron image(BEI) and X-ray diffraction analysis(XRD).It is noted that the sabkha soil mixed with 2% cement and 30% CKD could be used as a sub-base material in rigid pavements.The incorporation of CKD leads to technical and economic benefits. | Abdullah A.Al-Homidy Mohammed H.Dahim Ahmed K.Abd El Aal | 2017 | Journal of Rock Mechanics and Geotechnical Engineering2017，9，4： | 3 |
| 4 | Electrophoreted Zn–TiO 2 –ZnO nanocomposite coating films for photocatalytic degradation of 2-chlorophenol显示文摘 | A. Abdel Aal M.A. Barakat R.M. Mohamed | 2008 | Applied Surface Science2008，，15： | 2 |
| 5 | Iron Biomineralization Controls on Geophysical Signatures of Hydrocarbon Contaminated Sediments显示文摘The interpretation of geophysical data from mature hydrocarbon contaminated sites has relied on a conductive plume model where the conductivity of the subsurface contaminant volume is the result of microbial mediated changes in pore fluid chemistry. This conductive anomalous region is characterized by high total dissolved solids and occurs within the water table fluctuation zone where microbial activity is the maximum. Here we update this conductive plume model by providing new insights from recent laboratory investigations and geophysical data from hydrocarbon contaminated sites suggesting the unrecognized role of the impact that microbial-mediated metallic mineral precipitates have on geophysical signatures. We show that microbial redox processes(e.g., iron and sulfate reduction) during the biodegradation process involve mineralogical transformations and the precipitation of new minerals(e.g., magnetite, and pyrite) that can impact the electrical and magnetic properties of contaminated sediments. We provide examples from laboratory experiments and field studies and suggest that knowledge of the dominant redox processes occurring at hydrocarbon contaminated sites and the mineral phases formed is critical for a more robust interpretation of geophysical data associated with microbial-mediated changes at hydrocarbon contaminated sites. We also show that integration of both magnetic and electrical techniques may help reduce ambiguity in data interpretation. | Estella A.Atekwana Gamal Z.Abdel Aal | 2015 | Journal of Earth Science2015，26，6： | 2 |
| 6 | The use of wood pulp and radiation modified starch in wastewater treatment显示文摘 | Abdel Aal S E Gad Y Dessouki A M | 2006 | J Appl Polym Sci2006，99，5： | 1 |
| 7 | Controlling factors affecting the stability and rate of electroless copper plating显示文摘 | Hamid Z Abdel Aal A Abdel | 2003 | Materials Letters2003，58，： | 1 |
| 8 | Physicochemical and structural characteristics of flours and starches from waxy and nowaxy wheats显示文摘 | Abdel - Aal E - S Hucl P Chibbar R N | 2002 | Cereal Chemistry2002，79，3： | 1 |
| 9 | Aphid carboxylester- ases : Biochemical aspects and importance in the diagnosis of insecti- cide resistance显示文摘 | Abdel - Aal Y A I Wolff M A Roe R M | 1990 | Pestic Biochem Physiol1990，38，： | 1 |
| 10 | Tectonic evolu- tion of the Eastern Mediterranean Basin and its significance for hydrocarbon prospectivity in the ultradeepwater of the Nile Delta 显示文摘 | Abdel aal A Barkooky A Gerrits M | 2000 | The Leading Edge2000，19，10： | 1 |
| 11 | Fluoroscopic and sonographic guidance to place peritoneal catheters: how we do it 显示文摘 | Abdel Aal AK Joshi AK Saddekni S | 2009 | AJR2009，192，10： | 1 |
| 12 | Environmental factors affecting the corrosion behavior of reinforcing steel Ⅱ , role of some anions in the initiation and inhibition of pitting corrosion of steel in Ca( OH)2 solutions 显示文摘 | HALEEM S M WANEES S AAL E E | 2010 | Corrosion Science2010，52，： | 1 |
| 13 | Sepaption and characterizationof 4 - and B - type starch granules in wheat endosperm 显示文摘 | PengM Gao M Abdel - Aal A | 1999 | CerealChemistry1999，76，3： | 1 |
| 14 | Stability of new electrostatic discharge protection and electromagnetic wave shielding effectiveness from poly (vinyl chloride) /graphite/nickel nanoconducting composites 显示文摘 | AI-Ghamdi A A E1-Tantawy Farid Aal Nadia Abdel | 2009 | Polymer Degradation and Stability2009，94，6： | 1 |
| 15 | Environmental factors affecting the corrosion behavior of reinforcing steel Ⅳ, variation in the pitting corrosion current in relation to the concentration of the aggressive and the inhibitive anions显示文摘 | ABD EL HALEEM S M ABD EL WANEES S ABD EL AAL E E | 2010 | Corrosion Science2010，52，5： | 1 |
| 16 | Clomiphene citrate or letrozole for ovulation inductionin patients with polycystic ovarian syndrome : a prospective randomized trial 显示文摘 | BADAWY A ABDEL AAL I ABULATTA M | 2009 | Fertility and Sterility2009，92，3： | 1 |
| 17 | Antioxidant activity and nutrient composition of selected cereals for food use显示文摘 | Ragaee S Elsayed M Abdel Aal | 2006 | Food Chemistry2006，98，： | 1 |
| 18 | Intelligent Forecasting Model of COVID-19 Novel Coronavirus Outbreak Empowered with Deep Extreme Learning Machine显示文摘An epidemic is a quick and widespread disease that threatens many lives and damages the economy.The epidemic lifetime should be accurate so that timely and remedial steps are determined.These include the closing of borders schools,suspension of community and commuting services.The forecast of an outbreak effectively is a very necessary but difficult task.A predictive model that provides the best possible forecast is a great challenge for machine learning with only a few samples of training available.This work proposes and examines a prediction model based on a deep extreme learning machine(DELM).This methodology is used to carry out an experiment based on the recent Wuhan coronavirus outbreak.An optimized prediction model that has been developed,namely DELM,is demonstrated to be able to make a prediction that is fairly best.The results show that the new methodology is useful in developing an appropriate forecast when the samples are far from abundant during the critical period of the disease.During the investigation,it is shown that the proposed approach has the highest accuracy rate of 97.59%with 70%of training,30%of test and validation.Simulation results validate the prediction effectiveness of the proposed scheme. | Muhammad Adnan Khan Sagheer Abbas Khalid Masood Khan Mohammed AAl Ghamdi Abdur Rehman | 2020 | Computers, Materials & Continua2020，，9： | 1 |
| 19 | Electrophoreted Zn-TiO2·ZnO nanocomposite coating films for photocatalytic degradation of 2-chlorophenol显示文摘 | AAL A A BARAKAT M A MOHAMED R M | 2008 | Appl Surf Sci2008，254，15： | 1 |
| 20 | Nanocrystalline soft ferromagnetic Ni-Co-P thin film on Al alloy by low temperature electroless deposition 显示文摘 | Abdel Aal A Shaaban A Abdel Hamid Z | 2008 | Applied Surface Science2008，254，7： | 1 |
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