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| 1 | 弯曲疲劳后4D-C/C复合材料的抗弯强度及热膨胀性能(英文)显示文摘采用液相浸渍炭化技术,在压力为75MPa下制备出4D-C/C复合材料,并进行高温热处理。研究静态和动态加载条件下,材料沿厚度方向的弯曲性能及断裂行为。结果表明,循环次数达到10×105次、频率为10 Hz时,材料的临界弯曲疲劳极限是静态弯曲强度的80%。静态弯曲加载情况下,C/C复合材料失效机制取决于试样底层炭纤维的取向。循环疲劳载荷作用下,其失效机制包括基体开裂、纤维-基体界面弱化及纤维断裂。复合材料在循环加载过程中界面结合强度降低,并释放内应力,故增强了纤维拔出以及复合材料的假塑性,疲劳加载后其剩余弯曲强度增加10%左右,而模量降低。疲劳载荷引起材料基体缺陷和裂纹数量的增加及纤维断裂,削弱了长度方向上的热膨胀,使材料热膨胀系数降低。 | Wajed Zaman 李克智 李伟 Hira Zaman Khurshid Ali | 2014 | 新型炭材料2014，29，3： | 6 |
| 2 | 3000℃氧-乙炔重复烧蚀后4D-炭/炭复合材料的剩余强度和热物理性能(英文)显示文摘主要研究炭/炭(C/C)复合材料在高温使用环境下的烧蚀、剩余强度以及热物理性能。实验采用四维C/C复合材料,在3000℃下进行重复氧-乙炔烧蚀实验,每次烧蚀时间为30s,烧蚀后快速冷却。结果表明:材料的烧蚀率与烧蚀时间呈线性关系;在总烧蚀时间相同的情况下,单步烧蚀比逐步烧蚀的烧蚀率高。经过最初几步烧蚀实验后,材料的烧蚀率保持恒定。试样烧蚀面的粗糙度对试样的烧蚀率有重要影响。随着烧蚀次数的增加,材料的压缩强度、热导率和热膨胀系数逐步降低,而比热容几乎保持不变。 | Wajed ZAMAN 李克智 Sumeera IKRAM 李伟 | 2013 | 中国有色金属学会会刊:英文版2013，23，6： | 3 |
| 3 | Key synthesis of magnetic Janus nanoparticles using a modified facile method显示文摘Inorganic/organic poly(methylmethacrylate-acrylic acid-divinylbenzene) iron oxide Janus magnetic nanoparticles(P(MMA-AA-DVB)/Fe_3O_4) with strong magnetic domains and unique surface functionalities were prepared using a solvothermal process.The P(MMA-AA-DVB) nanoparticles were prepared via soapfree emulsion polymerization and used as a precursor for preparing Janus nanoparticles.The morphology and magnetic properties of the magnetic Janus nanoparticles formed were characterized using a laser particle size analyzer,transmission electron microscopy,Fourier transform infrared spectroscopy,vibrating sample magnetometry,and thermogravimetric analysis.The synthesized P(MMA-AA-DVB)/Fe_3O_4 magnetic Janus nanoparticles were characterized by a Janus structure and possessed a stable asymmetric morphology after being dually functionalized.The particle size,magnetic content,and magnetic domain of the P(MMA-AA-DVB)/Fe_3O_4 magnetic Janus nanoparticles were 200 nm,40%,and 25 emu/g,respectively.The formation mechanism of the Janus nanoparticles was also investigated,and the results revealed that the reduction of Fe^(3+) ions and growth of Fe_3O_4 took place on the surface of the P(MMA-AA-DVB) polymeric precursor particles.The size of the Janus particles could be controlled by narrowing the size distribution of the P(MMA-AA-DVB) precursor nanoparticles. | Nisar Ali Baoliang Zhang Hepeng Zhang Wajed Zaman Wei Li Qiuyu Zhang | 2014 | Particuology2014，12，6： | 2 |
| 4 | DNA methylation: an alternative pathway to cancer 显示文摘 | Wajed S A Laird P W DeMeester T R | 2001 | Ann Surg2001，234，： | 1 |
| 5 | Doppler ultrasound and clinical findings in patients with acute ischemic stroke treatec with intravenous thrombolylsis显示文摘 | Thomassen L Waje - Andreassen U Naess H | 2005 | Eur J Neurol2005，12，6： | 1 |
| 6 | Systemic complement activation following human acute ischaemic stroke 显示文摘 | Pedersen ED Waje AU Vedeler CA | 2004 | Clin Exp Immunol2004，137，1： | 1 |
| 7 | Purification, drying of bromelain显示文摘 | DEVAKATE R V PATIL V V WAJE S S | 2009 | Separation and Purification Technology2009，64，3： | 1 |
| 8 | DNA methylation:an alterna-tive pathway to cancer显示文摘 | Wajed SA Laird PW DeMeester TR | 2001 | Ann Surg2001，234，1： | 1 |
| 9 | Tomographic diagnosis of gas maldistribution in gas-solid fluidized beds显示文摘 | Patel A K Waje S S Thorat B N | 2008 | Powder Technology2008，185，3： | 1 |
| 10 | Impact of HIV and AIDS on surgical practice显示文摘 | Dua RS Wajed SA Winslet MC | 2007 | Ann R Coll Surg Engl2007，89，4： | 1 |
| 11 | Sulfonated ordered mesoporous carbon as a stable and highly active protonic acid catalyst显示文摘 | Wang X Q Liu R Waje M M | 2007 | Chem Mater2007，19，10： | 1 |
| 12 | DNA methylation: an alternative pathway to cancer 显示文摘 | Wajed SA Laird PW DeMeester TR | 2001 | Ann Surg2001，234，1： | 1 |
| 13 | DNA methylation:An alternative pathway to Cancer显示文摘 | Wajed SA Laird PW DeMeester TR | 2001 | Ann Surg2001，1，： | 1 |
| 14 | Methanol resistant cathodic catalyst for direct methanol fuel cells显示文摘 | Wang Xin Waje Mahesh Yan Yushan | 2004 | J Electro- chem Soc2004，151，12： | 1 |
| 15 | IL-6:an early marker for outcome in acute ischemic stroke显示文摘 | Waje U Krakenes J Ulvestad E | 2005 | Acta Neurol Scand2005，111，： | 1 |
| 16 | Review of long - term mortality and vascular morbidity amongst young adults with cerebral infarction 显示文摘 | Naess H Waje - Andreassen U | 2010 | Eur J Neurol2010，17，1： | 1 |
| 17 | Platinum nanopaticles sup- ported on stacked-cup carbon nanofibers as electrocatalysts for proton exchange membrane fuel cell 显示文摘 | Li W Z Waje M Chen Z W | 2010 | Carbon2010，48，： | 1 |
| 18 | Sulfonated ordered mesoporous carbon as a stable and highly active protonic acid catalyst 显示文摘 | Wang X Q Liu R Waje M M | 2007 | Chem Mater2007，19，10： | 1 |
| 19 | Randomized controlled trial of laparoscopic gastric ischemic conditioning prior to minimally invasive esophagectomy,the LOGIC trial显示文摘 | Veeramootoo D Shore AC Wajed SA | 2012 | Surg Endosc2012，26，7： | 1 |
| 20 | Laparoscopic and endoscopic surgery in esophageal malignancy显示文摘 | Wajed SA Peters JH | 2001 | Surgical oncology clinics of North America2001，10，3： | 1 |
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