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Rare Metals 2009年第1期28卷 9-13页

作者： liu Jinjun liu Xincai PAN Jing JIANG Chengyong State Key Laboratory Base of Novel Functional Materials and Preparation Science Faculty of Materials Science and Chemical Engineering Ningbo University Ningbo 315211 China

the C15 Laves phase with composition tb0.2Pr0.8（Fe0.4Co0.6）1.93 was synthesized by mechanical alloying （MA） and subsequent annealing process. the structure and magnetic properties of tb0.2Pr0.8（Fe0.4Co0.6）1.93 were investigated by means of X-ray diffraction （XRD）, a vibrating sample magnetometer, and a standard strain technique. the effect of annealing on the structure and magnetic properties was studied. the analysis of XRD shows that the high Pr-content tb0.2Pr0.8（Fe0.4Co0.6）1.93 alloy with the single phase of MgCu2-type structure can be successfully synthesized by MA method. the sample annealed at 450℃ is found to have a coercivity of 196 kA/m at room temperature. An epoxy/tb0.2Pr0.8（Fe0.4Co0.6）1.93 composite was produced by a cold isostatic pressing technique. A large magnetostriction of 400 ppm, at an applied magnetic field of 800 kA/m, was found for the composite. the epoxy-bonded tb0.2Pr0.8（Fe0.4Co0.6）1.93 composite combines a high magnetostriction with a significant coercivitv, which is a oromising magnetostrictive material.

关键词： mechanical alloying magnetostriction structure magnetic properties magnetostrictive composites

Ni-_2P-MoS_2/γ-Al_2O_3 Catalyst for Deep Hydrodesulfurization via the Hydrogenation Reaction Pathway

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China Petroleum Processing & Petrochemical technology 2014年第4期16卷 12-18页

作者： liu Lihua liu Shuqun School of Chemistry and Materials Science Huaibei Normal University

A series of highly active Ni2P-Mo S2/γ-Al2O3 catalysts were prepared and characterized, the catalytic performance of which was evaluated through hydrodesulfurization of dibenzothiophene. the result indicated that when the amount of Ni2 P was 4%, the catalyst showed a relatively high activity to provide a reliable reference for the hydrodesulfurization pathway in comparison with the conventional Ni Mo and Ni Mo P catalysts. the physicochemical properties of the catalysts were correlated with their catalytic activity and selectivity on hydrodesulfurization. the stacking number of active Mo S2 phases was important for influencing the hydrogenation activity.

关键词： MoS2 catalysts nickel phosphide morphology hydrodesulfurization

transient elastography improves detection of liver cirrhosis compared to routine screening tests

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World Journal of Gastroenterology 2015年第3期21卷 953-960页

作者： thomas Gobel Janine Schadewaldt-tümmers Lucas Greiner Christopher Poremba Dieter Haussinger Andreas Erhardt Klinik für Gastroenterologie Hepatologie und InfektiologieUniversitatsklinikum Düsseldorf40225 DüsseldorfGermany Klinik für Gastroenterologie Hepatologie und DiabetologiePetrus-Krankenhaus Wuppertal42283 WuppertalGermany Pathologie München-Nord Ernst-Platz-StraBe 280992 MünchenGermany

AIM:to investigate the diagnostic significance oftransient elastography(tE) in a daily routine clinical setting in comparison to clinical signs,laboratory parameters and ***:tE,ultrasound,laboratory parameters and cutaneous liver signs were assessed in 291 consecutive patients with chronic liver disease of various aetiologies who underwent liver biopsy in daily ***:Sensitivity of tE for the detection of liver cirrhosis was 90.4%,compared to 80.1% for ultrasound,58.0% for platelet count and 45.1% for cutaneous liver signs(P th histology).AUROC for tE was 0.760(95%CI:0.694-0.825).Combination of tE with ultrasound increased sensitivity to 96.1% and AUROC to 0.825(95%CI:0.768-0.882).tE correlated with laboratory parameters of cirrhosis progression like albumin(r =-0.43),prothrombin time(r =-0.44),and bilirubin(r = 0.34; P ticularly,in patients with Child Pugh score A or normal platelet count tE improved sensitivity for the detection of liver cirrhosis compared to ultrasound by 14.1%(P transient elastography is superior to routine diagnostic tests allowing detection of liver cirrhosis in additional 10%-16% of patients with chronic liver disease that would have been missed by clinical examinations.

关键词： transient elastography Fibroscan Liver cirrhosis Liver disease Chronic hepatitis

tissue expression and developmental regulation of chicken cathelicidin antimicrobial peptides

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Journal of Animal Science and Biotechnology 2012年第2期3卷 86-92页

作者： Mallika Achanta Lakshmi t Sunkara Gan Dai Yugendar R Bommineni Weiyu Jiang Guolong Zhang Department of Animal Science Oklahoma State University Stillwater OK 74078 USA Department of Biochemistry and Molecular Biology Oklahoma State University Stillwater OK 74078 USA

Cathelicidins are a major family of antimicrobial peptides present in vertebrate animals with potent microbicidal and immunomodulatory activities. Four cathelicidins, namely fowlicidins 1 to 3 and cathelicidin B1, have been identified in chickens. As a first step to understand their role in early innate host defense of chickens, we examined the tissue and developmental expression patterns of all four cathelicidins. Real-time PCR revealed an abundant expression of four cathelicidins throughout the gastrointestinal, respiratory, and urogenital tracts as well as in all primary and secondary immune organs of chickens. Fowlicidins 1 to 3 exhibited a similar tissue expression pattern with the highest expression in the bone marrow and lung, while cathelicidin B1 was synthesized most abundantly in the bursa of Fabricius. Additionally, a tissue-specific regulatory pattern was evident for all four cathelicidins during the first 28 days after hatching. the expression of fowlicidins 1 to 3 showed an age-dependent increase both in the cecal tonsil and lung, whereas all four cathelicidins were peaked in the bursa on day 4 after hatching, with a gradual decline by day 28. An abrupt augmentation in the expression of fowlicidins 1 to 3 was also observed in the cecum on day 28, while the highest expression of cathelicidin B1 was seen in both the lung and cecal tonsil on day 14. Collectively, the presence of cathelicidins in a broad range of tissues and their largely enhanced expression during development are suggestive of their potential important role in early host defense and disease resistance of chickens.

关键词： Antimicrobial peptides Cathelicidins Chickens Development Host defense peptides

Novel foaming agent used in preparation process of aluminum foams

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Journal of University of Science and technology Beijing 2008年第6期15卷 735-739页

作者： Xiangyang Zhou Xiquan liu Jie Li Hongzhuan liu School of Metallurgical Science and Engineering Central South University Changsha 410083 China

the performances of a novel foaming agent used in the preparation process of aluminum foams were investigated, and the effects of some factors, such as addition of the foaming agent, foaming temperature on the porosity, and appearance of aluminum foams were also discussed. Experimental results show that the novel foaming agent has a wide decomposition temperature range and a mild decomposed rate; the foaming agent has the ability to enhance the viscosity of aluminum melt, as a result, an extra viscosifier such as Ca or SiCp is unnecessary while using this foaming agent; the bubble-free zone in material decreases and the foaming effi- ciency increases with the increase of foaming agent; the bubble-free zone disappears and the foaming efficiency is near 100% when the addition of foaming agent is more than 1.4wt%; the porosity of the aluminum foam increases with the increase of foaming agent when the addition of foaming agent is less than 2.2wt%.

关键词： aluminum foam foaming agent porosity viscosity foaming efficiency

Succinylation improves the slowly digestible starch fraction of cardaba banana starch. A process parameter optimization study

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Artificial Intelligence in Agriculture 2020年第1期4卷 219-228页

作者： Babatunde Olawoye Oladapo F.Fagbohun Saka O.Gbadamosi Charles t.Akanbi Department of Food Science and technology First Technical UniversityKM 11Ibadan-Lagos ExpresswayIbadanNigeria Department of Biomedical Engineering First Technical UniversityKM 11Ibadan-Lagos ExpresswayIbadanNigeria Department of Food Science and technology Obafemi Awolowo University Ile-IfeNigeria

the study investigated the improvement of slowly digestible starch fraction of cardaba banana via octenyl succinic anhydride(OSA)modification process.A nonlinear(Response surface methodology[RSM]and artificial neural network[ANN])and linear(partial least square[PLS])modelswere employed and their predictabilitywas *** result revealed that all the modelling techniques were accurate in predicting the experimental *** optimized RSM values for the production of slowly digestible starch(SDS)fraction were OSA concentration of 4%,reaction time of 47.49 min,and pH of 10 with a predicted SDS value of 44.64%.Among the modelling techniques,ANNwas adjudged as the predictivemodel for improving the SDS *** regression coefficient coupled with the variable important in the projection(VIP)values of the PLS model indicated that the OSA concentrationwas themost important factors responsible for high SDS ***,a structural comparison of the optimized starch against native starch revealed the formation of high ordered crystalline structure of the starch due to the impregnation of the modifying agent to the hydroxyl group of the cardaba banana starch.

关键词： Slowly digestible starch Low glucose response Artificial neural network Partial least square

新型列控系统列车行车许可CtC显示方案研究

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铁道通信信号 2025年第1期61卷 24-30页

作者：刘黎李军兴中国铁道科学研究院集团有限公司通信信号研究所北京100081 中国铁路北京局集团有限公司调度所北京100860

调度集中(CtC)系统中的列车运行状态信息实时显示功能可帮助列车调度人员高效开展行车指挥。新型列控系统下列车采取移动闭塞方式运行,既有CtC系统中的列车行车许可显示无法准确反映列车运行情况,为此需要对列车行车许可在CtC系统中的... 详细信息

调度集中(CtC)系统中的列车运行状态信息实时显示功能可帮助列车调度人员高效开展行车指挥。新型列控系统下列车采取移动闭塞方式运行,既有CtC系统中的列车行车许可显示无法准确反映列车运行情况,为此需要对列车行车许可在CtC系统中的显示与更新方案进行研究。通过提取列车精准位置信息,分别研究列车位于站内和站间两种情况下行车许可显示范围计算方法,并根据行车许可显示范围计算显示光带的起止点,从而实现列车位置和行车许可范围在CtC终端界面的实时显示及更新。该方案在CtC仿真测试平台及现场试验线路上进行了验证,满足新型列控系统下调度集中系统中列车运行状态信息显示的规范要求,能够准确及时地反映列车运行状态,有利于提升列车调度指挥的准确性和效率。

关键词：新型列控系统调度集中移动闭塞信息封装行车许可虚拟区段显示光带

Assessing the biogenicity and syngenicity of candidate bioalteration textures in pillow lavas of the～2.52 Ga Wutai greenstone terrane of China

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Chinese Science Bulletin 2010年第2期55卷 188-199页

作者： McLOUGHLIN N FLIEGEL DJ FURNES H StAUDIGEL H SIMONEttI A ZHAO GuoChun ROBINSON P t Department of Earth Science and Center for Geobiology AUegaten 41 Bergen N-5007 Norway Scripps Institution of Oceanography University of California La Jolla CA 92093-0225 USA Department of Civil Engieering and Geological Sciences University of Notre Dame Indiana IN46556 USA Department of Earth Sciences The University of Hong Kong Pokfulam Road Hong Kong China Department of Earth Sciences Dalhousie University Halifax Nova Scotia B3H 4J1 Canada

住在 sub-seafloor 熔岩的微生物能够蚀刻暴烈的玻璃并且创造微米大小的隧道和坑。这些 bioalteration 踪迹的矿化作用保证这些质地熬过主人玻璃的变丑和转变到变形矿物质。如此的 bioalteration 质地的石块记录从在原处海洋的外壳在暴... 详细信息

住在 sub-seafloor 熔岩的微生物能够蚀刻暴烈的玻璃并且创造微米大小的隧道和坑。这些 bioalteration 踪迹的矿化作用保证这些质地熬过主人玻璃的变丑和转变到变形矿物质。如此的 bioalteration 质地的石块记录从在原处海洋的外壳在暴烈的玻璃以外远延长从 ophiolites 和前寒武纪的绿岩带包括元暴烈的玻璃。薄节从 N 的 Wutai 组从 2.52 Ga tholeiitic 枕头熔岩这里报导了的 petrographic 的调查。中国成立细丝状微质地。激光拉曼光谱学证实这些质地被 titanite 使矿物化。而且， Wutai 微质地在到从太古代的 greenschist 外形枕头熔岩的 bioalteration 质地的尺寸，形态学和分发是可比较的。在原处，诱导地由激光脱离多收集者 titanite 标明日期的 U-Pb 联合了团 spectrometry (LA-MC-ICP-MS ) 给 1.81 敢 ? 汢獥敳 ? 楷桴的年龄的血浆吗？

关键词：枕状熔岩候选人绿岩带纹理中国电感耦合等离子体质谱五台山地体

Comparison of different chain n-fatty acids in modern plants on the Loess Plateau of China

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Frontiers of Earth Science 2020年第3期14卷 615-624页

作者： Jinzhao liu Zhisheng An State key Laboratory of Loess and Quaternary Geology Institute of Earth EnvironmentChinese Academy of SciencesCAS Center for Excellence in Quaternary Science and Global ChangeXi’an710061China School of Human Settlements and Civil Engineering Xi’an Jiaotong UniversityXi’an710049China

n-Fatty acids(n-FAs)are widely investigated in lake sediments,yet less attention has been given to soil sedimentary n-FAs primarily derived from terrestrial *** this study,we performed an analysis of n-FA distributions in modern plants on the Loess Plateau,*** showed that n-FAs were generally dominated by n-C16,and that short-chain(C16-C20),medium-chain(C22-C26)and long-chain(C28-C32)n-FAs accounted for 49.7%,33.7%and 16.6%,*** LtR(long-chain/total ratio),and medium-chain EOP(even/odd predominance)are likely to differentiate between dicots and monocots in modern *** is believed that this study will promote the paleo-application of soil sedimentary n-FAs on the Loess Plateau.

关键词： n-fatty acids terrestrial higher plants ChineseLoess Plateau

Higher incidence of steroid-induced ocular hypertension in keratoconus

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Eye and Vision 2016年第1期3卷 29-36页

作者： Anastasios John Kanellopoulos Emerson M.Cruz Robert Edward t.Ang George Asimellis Laservision.gr Clinical and Research Eye Institute 17 Tsocha StreetAthens Postal Code:11521Greece NYU Medical School New YorkNYUSA Asian Eye Institute MakatiPhilippines

Background:to compare intraocular pressure(IOP)changes following topical dexamethasone administration for 1 month in keratoconic versus normal ***:this is a retrospective,single-center,non-randomized case series evaluation of 350 *** groups were formed:normal/control Group A(n_(A)=73),eyes that underwent excimer laser photorefractive keratectomy;and keratoconic(KCN)Group B(n_(B)=277),eyes that were subjected to partial laser photorefractive keratectomy combined with collagen cross-linking(the Athens Protocol).All eyes received the same post-operative regimen of topical dexamethasone 0.1%for at least 1 *** applanation tonometry IOP readings and central corneal thickness(CCt)measurements were *** with induced ocular hypertension(OHt,defined as post-operative IOP higher than 21 mmHg),were identified and correlated to refractive procedure,gender,and corneal ***:At 4 weeks postoperatively,OHt was noted on 27.4%(20/73 eyes)in Group A,and 43.7%(121/277 eyes)in KCN Group B,(pths post-operatively(following 5-months of discontinuing topical dexamethasone treatment and commencing treatment of IOP-lowering medications),OHt rate was 1.8%in Group A and 3.9%in the KCN Group ***:this study demonstrates a potentially significant pre-disposition of keratoconic eyes to the development of steroid-induced OHt.

关键词： Keratoconus Intraocular pressure Corticosteroid induced ocular hypertension IOP spike Corneal collagen cross-linking CXL the Athens protocol topography-guided Photorefractive keratectomy Dexamethasone topical ophthalmic solution