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| 1 | 温度-压力解耦条件下汽爆玉米秸秆物化作用及酶解效果显示文摘为研究温度-压力解耦条件下汽爆玉米秸秆物化作用及其酶解效果,分别采用不同蒸煮温度(453、471和485 K)和不同爆破压力(1.0、1.5和2.0MPa)对玉米秸秆进行汽爆处理,测定并分析对其物理结构(微观形貌和多孔特性)、化学组成(组分含量、官能团结构和结晶程度)和热力学性质的影响。结果显示:随蒸煮温度增加,汽爆秸秆中半纤维素和乙酰基含量最高降低50.69%和67.11%,木质素含量最高增加17.66%,整体热稳定性增加;水洗液中糖类产物含量最高降低45.37%,而有机酸和糠醛类含量最高增加37.66%和73.21%。随爆破压力增加,汽爆秸秆多孔特性得到改善,具体表现为累积孔体积、累积孔面积、平均孔径、孔隙率、渗透率和迂曲度均有不同程度增加。汽爆水热改性作用对提升秸秆酶解效果的贡献大于其物理爆破作用,但在较高温度条件下对结构性成分的过度降解可能导致回收率降低,从而影响葡萄糖得率。在471 K低温维持和2.0 MPa高压爆破条件下,汽爆秸秆纤维素水解率最高达到87.99%,表明温压分控汽爆预处理策略有效促进秸秆纤维素酶解转化。研究可为揭示木质纤维素类物料汽爆过程物化作用机理、提高预处理和后续转化利用效果提供理论依据。 | 李祥 陆子琦 浦译文 李冉冉 贾永秀 Amirsalar Khandan 隋文杰 | 2022 | 农业工程学报2022,38,3: | 6 |
| 2 | An in vitro evaluation of novel NHA/zircon plasma coating on 316L stainless steel dental implant显示文摘The surface characteristics of an implant that influence the speed and strength of osseointegration include crystal structure and bioactivity. The aim of this study was to evaluate the bioactivity of a novel natural hydroxyapatite/zircon(NHA/zircon) nanobiocomposite coating on 316L stainless steel(SS) dental implants soaking in simulated body fluid. A novel NHA/zircon nanobiocomposite was fabricated with 0(control),5, 10, and 15 wt% of zircon in NHA using ball mill for 1 h. The composite mixture was coated on SS implants using a plasma spray method.Scanning electron microscopy(SEM) was used to evaluate surface morphology, and X-ray diffraction(XRD) was used to analyze phase composition and crystallinity(Xc). Further, calcium ion release was measured to evaluate the coated nanobiocomposite samples. The prepared NHA/zircon coating had a nanoscale morphological structure with a mean crystallite size of 30–40 nm in diameter and a bone-like composition,which is similar to that of the biological apatite of a bone. For the prepared NHA powder, high bioactivity was observed owing to the formation of apatite crystals on its surface. Both minimum crystallinity(Xc=41.1%) and maximum bioactivity occurred in the sample containing 10 wt% of zircon because of minimum Xcand maximum biodegradation of the coating sample. | Ebrahim Karamian Mahmood Reza Kalantar Motamedi Amirsalar Khandan Parisa Soltani Sahel Maghsoudi | 2014 | Progress in Natural Science:Materials International2014,24,2: | 6 |
| 3 | Per/ormance region of center affine Filter for liminating of interference terms of discrete Wigner distribution显示文摘 | KHANDAN F AYATOLLAHI A | 2003 | Image and Signal Processing and Analysis2003,,2: | 1 |
| 4 | Role of cell cycle in mediating sensitivity to radiothraphy显示文摘 | PAWLIK M D KHANDAN K | 2004 | Int J Radioat Oncol Biol Phys2004,59,4: | 1 |
| 5 | Performance region of center affine filter for laminating of interference terms of discrete wigner distribution显示文摘 | Khandan F Ayalollahi A | 2003 | Image and Signal Processing and Analysis2003,,2: | 1 |
| 6 | Determining an optimum catalyst for liquid-phase dehy- dration of methanol to dimethyl ether 显示文摘 | KHANDAN N KAZEMEINI M AGHAZIARATI M | 2008 | Applied Ca- talysis A: General2008,349,12: | 1 |
| 7 | CyclinE and survival in patients with breast cancer显示文摘 | Khandan Keyomarsi Susan L Theker Thomas A Buehholz | 2002 | N Engl J Med2002,347,: | 1 |
| 8 | Hematopoiesis and RAS-driven myeloid leukemia differentially require PI3K isoform p110[alpha]显示文摘 | Gritsman Kira Yuzugullu Haluk Von Thanh Yan Howard Clayton Linda Fritsch Christine Maira Sauveur-Michel Hollingworth Gregory Choi Christine Khandan Tulasi Paktinat Mahnaz Okabe Rachel O Roberts Thomas M Zhao Jean J | 2014 | Journal of Clinical Investigation2014,,4: | 1 |
| 9 | Synthesis of dimethyl ether over modified H-mor- denite zeolites and bifunctional catalysts composed of Cu/ ZnO/ZrO2 and modified H-mordenite zeolite in slurry phase 显示文摘 | Nahid Khandan Mohammad Kazemeini Mahmoud Agha- ziarati | 2009 | Catal Lett2009,129,: | 1 |
| 10 | The development of laminated composite plate theories : a review 显示文摘 | Khandan R Noroozi S Sewell P | 2012 | Journal of Material Science2012,47,: | 1 |
| 11 | Performance region of center affine filter for eliminating of interference terms of discrete wigner distribution显示文摘 | Khandan F Ayatollahi A | 2003 | Image and Signal Processing and Analysis2003,,2: | 1 |
| 12 | Effect of neoadjuvant anthracycline–taxane-based chemotherapy in different biological breast cancer phenotypes: overall results from the GeparTrio study显示文摘 | Jens Huober Gunter Minckwitz Carsten Denkert Hans Tesch Erich Weiss Dirk Michael Zahm Antje Belau Fariba Khandan Maik Hauschild Christoph Thomssen Bernhard H?gel Silvia Darb-Esfahani Keyur Mehta Sibylle Loibl | 2010 | Breast Cancer Research and Treatment2010,,1: | 1 |
| 13 | CyclinE and survival in patients with breast cancer 显示文摘 | KHANDAN KEYOMARSI SUSAN L THOMAS A | 2002 | N Eng J Med2002,347,: | 1 |
| 14 | Redundant cyclin overexpression and gene amplification in breast cancer cells显示文摘 | Khandan K Arthur BP | 1993 | Pro Natl Acad Sci1993,90,: | 1 |
| 15 | Anaerobic fer-mentation of cattle manure : modeling of hydrolysis and ac-idogenesis显示文摘 | Myint M T Khandan N N Speece R E | 2007 | Water Res2007,41,2: | 1 |
| 16 | Role of cell cycle in mediating sensitivity to radiotherapy显示文摘 | Timothy M. Pawlik Khandan Keyomarsi | 2004 | International Journal of Radiation Oncology Biology Physics2004,,4: | 1 |
| 17 | Formation of AlN Nano Particles Precipitated in St-14 Low Carbon Steel by Micro and Nanoscopic Observations显示文摘In low carbon steels,dissolution and precipitation of the second phases such as carbides and nitrides during annealing cycles can affect the final structure and properties of the materials.The interaction of above processes depends on parameters such as reheating temperature,heating rate,annealing temperature,soaking time and finishing temperature in hot rolling stage before cold rolling.The effects of heating rate and annealing temperature on the microstructure and hardness were investigated.Two heating rates for annealing temperatures of 550,610 and 720 ℃were applied on cold-rolled specimens and St-14 low carbon steel,which were immediately quenched after isothermal annealing.The intercept method was used to measure average grain sizes.However,resulted microstructures are different for the two heating rates.While pancaked structures were observed in specimens annealed with low heating rate,in samples annealed with high heating rate,equiaxed microstructures were observed.Vickers micro-hardness values decreased at all temperatures,which were more significant at higher temperatures.At longer annealing time,signs of increase of hardness values were detected.All results and observations consistently suggest that a precipitation process has occurred concurrently with restoration processes during annealing.In addition,the energy dispersive spectroscopy analysis resulted from transmission electron microscopic micrographs have proved that the nano particles precipitated in grain boundaries are AlN. | Amirsalar Khandan Ebrahim Karamian Mojdeh Faghih Allain Bataille | 2014 | Journal of Iron and Steel Research(International)2014,21,9: | 0 |
| 18 | 宁波就是摄影师的天堂!显示文摘我是一名来自美国的伊朗裔导演、摄影师,移居宁波已有两年了。俗话说"一张图片胜过千言万语",这也是我从事视觉艺术的原因之一。年轻时,我生活在祖国伊朗,那时伊朗的文盲率非常高。我想,如果能把故事拍成电影就可以让更多的人欣赏,所以我就走上了摄影之路。对于任何摄影师来说,宁波就是一个天堂。 | Hossein Khandan 龚维琳 | 2016 | 宁波通讯2016,0,4: | 0 |
| 19 | 酵母甘露糖蛋白体外发酵及其代谢产物的抗炎活性显示文摘通过体外肠道菌群厌氧发酵技术研究酵母甘露糖蛋白(mannoprotein,MP)的益生活性。结果表明,MP可调节肠道菌群结构,在门水平增加了拟杆菌门(Bacteroidetes)的相对丰度,降低了厚壁菌门(Firmicutes)、变形菌门(Proteobacteria)的相对丰度,降低了Firmicutes/Bacteroidetes比值。MP显著提高了发酵液中短链脂肪酸尤其是乙酸和丙酸的含量。MP与菊粉具有相似的益生菌活性,菊粉可促进双歧杆菌属(Bifidobacterium)的增殖,而MP可选择性促进拟杆菌属(Bacteroides)、韦荣球菌属(Veillonella)、Clostridium_sensu_srticto、布劳特氏菌属(Blautia)、粪杆菌属(Faecalibacterium)、纺锤链杆属(Fusicatenibacter)和产丁酸球菌属(Butyricicoccus)的生长。脂多糖诱导RAW 264.7巨噬细胞模型结果表明MP对炎症没有显著调节作用(P>0.05),而其发酵液具有显著抗炎活性,且其活性与菊粉组相似,均优于空白组。因此,MP有望成为通过调节肠道菌群改善人体健康的功能性食品。 | 李祥 陈贵杰 康贻军 Amirsalar KHANDAN | 2023 | 食品科学2023,44,2: | 0 |