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光驱动Rh/InGaN_(1-x)O_(x)纳米组装体甲烷干重整制合成气

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Science Bulletin 2024年第10期69卷 1400-1409页

作者：李亦昕李景林俞天奇邱亮 Syed M.Naj.b Hasan 姚琳潘虎 Shamsul Arafin Sharif md.Sadaf 朱磊周宝文 Key Laboratory for Power Machinery and Engineering of Ministry of Education Research Center for Renewable Synthetic FuelSchool of Mechanical EngineeringShanghai Jiao Tong UniversityShanghai 200240China China-UK Low Carbon College Shanghai Jiao Tong UniversityShanghai 201306China Centre Energie Matériaux et TélécommunicationsInstitut National de la Recherche Scientifique(INRS)-Universitédu QuébecVarennes J3X 1E4Canada Department of Electrical and Computer Engineering The Ohio State UniversityColumbusOH43210USA

Light-driven dry reforming of methane toward syngas presents a proper solution for alleviating climate change and for the sustainable supply of transportation fuels and ***,Rh/InGaN_(1-x)O_(x) nanowires supported by silicon wafer are explored as an ideal platform for loading Rh nanoparticles,thus assembling a new nanoarchitecture for this grand *** combination with the remarkable photothermal synergy,the O atoms in Rh/InGaN_(1-x)O_(x) can significantly lower the apparent activation energy of dry reforming of methane from 2.96 eV downward to 1.70 *** as-designed Rh/InGaN_(1-x)O_(x) NWs nanoarchitecture thus demonstrates a measurable syngas evolution rate of 180.9 mmol g_(cat)^(-1) h^(-1) with a marked selectivity of 96.3% under concentrated light illumination of 6 W cm^(-2).What is more,a high turnover number(TON)of 4182 mol syngas per mole Rh has been realized after six reuse cycles without obvious activity *** correlative 18O isotope labeling experiments,in-situ irradiated X-ray photoelectron spectroscopy(ISI-XPS)and in-situ diffuse reflectance Fourier transform infrared spectroscopy characterizations,as well as density functional theory calculations reveal that under light illumination,Rh/InGaN_(1-x)O_(x) NWs facilitate releasing^(*)CH_(3) and H^(+)from CH_(4) by holes,followed by H_(2) evolution from H^(+)reduction with ***,the O atoms in Rh/InGaN_(1-x)O_(x) can directly participate in CO generation by reacting with the ^(*)C species from CH_(4) dehydrogenation and contributes to the coke elimination,in concurrent formation of O *** resultant O vacancies are then replenished by CO_(2),showing an ideal chemical *** work presents a green strategy for syngas production via light-driven dry reforming of methane.

关键词： Dry reforming of methane Photo-thermal catalysis Rh/InGaN_(1-x)O_(x)nanowires

Design　Issues　for　Use　of　Solid　State　Transmitter　Radars　in　the　Terminal　Airspace

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j.urnal of Systems Engineering and Electronics 1995年第1期6卷 57-64页

作者： E. Lee Cole & Lawrence j. Friz(Westinghouse Electric Corporation, Baltimore, md, USA) Westinghouse Electric Corporation Baltimore MD USA

Abstract

关键词： Design Use Issues Airspace

Methylation status of p16 gene in colorectal carcinoma and normal colonic mucosa

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World j.urnal of Gastroenterology 1999年第5期5卷 451-454页

作者： Zhang j.Lai md Chen j Hangzhou Railway Cent Hosp Dept Clin Pathol Hangzhou 310000 Zhejiang Provin Peoples R China Zhej.ang Univ Sch Med Dept Pathol Hangzhou 310006 Zhejiang Provin Peoples R China

INTRODUCTIONp16 gene (also known as MTS-1, INK4a, CDKN2A), located on chromosome 9p21, is a G1-specific cell-cycle regulatory gene. It is composed of three exons, which encode 156 amino acids[1]. The gene is frequently inactivated in many human cancers. Unlike other tumor-suppressor genes that are commonly inactivated by point mutations, small homozygous deletions and methylation of the promoter represent the maj.r mechanism of p16 gene inactivation[2,3]. In the Western countries, colorectal carcinoma ranks first among malignant tumors. The mortality from colorectal carcinoma has been rapidly growing in China in the last two to three decades. The genetic alterations involved in this tumor are still unclear. Rare mutation and infrequent deletion of p16 gene in primary colorectal carcinoma has been widely reported[4]. There were a few papers on p16 gene methylation in colorectal carcinoma, but the results were contradictory[5,6]. In this study, we have examined a total of 60 samples of colorectal carcinoma and paired 60 samples of the normal colonic mucosa for methylation by means of PCR-based methylation assay. There is infrequent methylation in the promoter of p16 gene both in colorectal carcinoma and normal colonic mucosa. The methylation status in 5′ CpG island of p16 gene in colorectal carcinoma is not related to the clinical pathologic parameters of these tumors.

关键词： Colonic mucosa colorectal neoplasms p16 gene methylation

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微带漏波天线及其波束控制方法

无线通信技术 2024年第2期33卷 29-32页

作者： Hossain md Yousuf 华昌洲宁波大学信息科学与工程学院宁波315211

漏波天线是一类具有广大应用前景的导波天线,与传统天线相比具有明显的优势,可为各种无线通信和雷达应用提供波束控制功能。本文提出一种使用容性负载实现方向图动态辐射模式控制的漏波天线设计及波束控制方法。波束控制方法作为研究的... 详细信息

漏波天线是一类具有广大应用前景的导波天线,与传统天线相比具有明显的优势,可为各种无线通信和雷达应用提供波束控制功能。本文提出一种使用容性负载实现方向图动态辐射模式控制的漏波天线设计及波束控制方法。波束控制方法作为研究的主要重点,即在天线结构的特定位置引入电容元件来调制导波的有效折射率,通过改变波束的辐射角度来实现波束的控制。此外,研究还通过改变容性负载的参数分析了不同参数的容性负载对漏波天线辐射特性的影响。该技术具有结构简单、低成本、易小型化等特点,可以集成到各种无线通信系统和雷达阵列中。

关键词：漏波天线导波天线波束偏转

An Alternative Method for Solving Lagrange＇s First-Order Partial Differential Equation with Linear Function Coefficients

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j.urnal of Partial Differential Equations 2015年第3期28卷 208-224页

作者： ISLAM Syed md Himayetul DAS j. Fatullapur Adarsha High School Vill.-Fatullapur P.O.-Nimta Dist.-North 24-Parganas Kolkata-700049 India Department of Pure Mathematics Calcutta University 35 Ballygunge Circular Road Kolkata-700019 West Bengal India

An alternative method of solving Lagrange＇s first-order partial differential equation of the form（a1x ＋b1y＋C1z）p＋（a2x ＋b2y＋c2z）q =a3x ＋b3y＋c3z,where p = Эz/Эx, q = Эz/Эy and ai, bi, ci （i = 1,2,3） a... 详细信息

关键词： Lagrange's first-order partial differential equation linear functions simultaneousordinary differential equations linear homogeneous algebraic equations.

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镁-铝异种合金自冲铆接接头的力学性能

锻压技术 2024年第9期49卷 157-163+185页

作者：卢杰豪赵伦张俊凯雷乐李承旺刘高宇刘纪元 md Shafiqul Islam 深圳职业技术大学超声技术研究所辽宁科技大学材料与冶金学院云南开放大学机电工程学院瑞典布京理工学院机械学院

镁合金材料在车身轻量化制造方面具有巨大的潜力和应用空间，选取不同厚度的AZ31B镁合金和5083铝合金薄板材料进行自冲铆接，并通过拉伸实验和扫描电镜分析接头的静力学性能及微观组织。结果表明：自冲铆接能实现对AZ31B镁合金和5083铝... 详细信息

镁合金材料在车身轻量化制造方面具有巨大的潜力和应用空间，选取不同厚度的AZ31B镁合金和5083铝合金薄板材料进行自冲铆接，并通过拉伸实验和扫描电镜分析接头的静力学性能及微观组织。结果表明：自冲铆接能实现对AZ31B镁合金和5083铝合金薄板的有效连接；板厚搭配均匀的自冲铆接接头的整体力学性能最优；镁板厚度较小的自冲铆接接头的失效形式均为上板断裂，其余两组自冲铆接接头的失效形式均为下板拉脱；3组不同镁板厚度组合的自冲铆接接头断口均呈脆性断裂形貌。

关键词：车身轻量化自冲铆接镁合金铝合金力学性能

Role of lysosomal trafficking regulator in autophagic lysosome reformation in neurons:a disease perspective

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Neural Regeneration Research 2024年第5期19卷 957-958页

作者： Prashant Sharma j.nny Serra-Vinardell Wendy j.Introne May Christine V.Malicdan NIH Undiagnosed Diseases Program Common FundOffice of the DirectorNational Institutes of HealthBethesdaMDUSA Human Biochemical Genetics Section Medical Genetics BranchNational Human Genome Research InstituteNational Institutes of HealthBethesdaMDUSA(Serra-Vinardell JIntrone)

Lysosomes are discrete organelles that act as recycling centers for extracellular and intracellular materials,playing a pivotal role in maintaining cellular *** acidic environment,maintained by numerous hydrolytic enzymes,facilitates substrate *** in lysosomal processes can lead to abnormal substrate degradation,significantly impacting cellular *** energy-demanding cells,such as post-mitotic neurons,are especially vulnerable to these changes,often resulting in neurological ***,a conserved catabolic process,requires extensive lysosomal *** plays a key role in removing unnecessary intracellular components,ensuring cellular homeostasis,and promoting cell survival during stress conditions such as starvation,infection,or cellular damage.

关键词： homeostasis lysosomal removing

The Practice of Physical Medicine and Rehabilitation in subSaharan Africa and Antarctica：A White Paper or a Black Mark？

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中国康复医学杂志 2009年第5期24卷 385-389页

作者： Andrew j. Haig md j.nathan Im Ayodej. Adewole, md Virgina S. Nelson, md, M.P.H Brian Krabak, md, M.B.A. Department of Physical Medicine and Rehabilitation University of Michigan Ann Arbor Michigan USA. College of Liberal Arts and Sciences Wayne State University Detroit Michigan USA. SOS International Accra Ghana. Department of Physical Medicine and Rehabilitation University of Michigan Ann Arbor Michigan USA. Department of Rehabilitation Medicine University of WashingtonSeattle Washington USA.

Obj.ctive:To explore the practice of PM&R in subSaharan Africa and ***:Medline searches,membership data searches,fax survey of medical schools,Internet searches,and interviews with ***:The continents are dissimilar in terms of climate and *** both Antarctica and subSaharan Africa have no PM&R training programs,no professional organizations,no specialty board requirements,and no practicing physicians in the *** there is no known disabled child on Antarctica and adults are airlifted to world-class health care,the consequences of this deficit are minimal *** the 788,000,000 permanent residents of subSaharan Africa including approximately 78 million persons with disability are left ***:Antarctica is doing *** is in a *** medical schools,hospitals doctors,and persons with disability;along with foreign volunteers,aid groups,and policymakers can impact the *** government-specifically national ministries of health-is ultimately responsible for the health and wellbeing of citizens.

关键词：体格检查医学文献资料因特网

Trends in Extremes of Surface Humidity, Temperature, and Summertime Heat Stress in China

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Advances in Atmospheric Sciences 2001年第5期18卷 742-751页

作者： j.lian X.L. Wang and Dian j. Gaffen NOAA/ Air Resources Laboratory, Silver Spring, md, 20910, USA NOAA

In the past half century, the mean summertime temperature in China has increased, with nights warm- ing more than days. Using surface station observations, we show that the frequency of extreme heat-stress events in China, caused by extremely hot and humid days as well as by heatwaves lasting for a few days, has increased over the period from 1951 to 1994 When humidity is high, hot weather can cause heat stress in humans. The increased heatrstress trend may pose a public health problem

关键词： Trend detection Climate change Public health