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高速接口电路发送器的设计

集成电路应用 2024年第5期41卷 6-7页

作者：杨海玲上海市集成电路研发中心上海201210

阐述一种高速接口电路发送器的设计,采用分布式架构,包括输入数据接口、数据编码和调制模块、错误检测和纠正模块、缓冲和驱动模块,以及时钟和时序控制模块。通过该设计,能够实现高效可靠的数据传输。

关键词：高速接口电路发送器时序控制模块

紫苏叶HPLC指纹图谱建立及其抗流感病毒活性谱效关系研究

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中草药 2024年第1期55卷 287-296页

作者：刘振杰丘海芯甘金月奉建芳唐红珍谭小青杨海玲广西优势中成药与民族药开发工程技术研究中心广西中医药大学广西南宁530299 广西中药质量标准研究重点实验室广西壮族自治区中医药研究院广西南宁530022 安徽医学高等专科学校安徽合肥230601

目的研究紫苏叶Perillae Folium的化学成分,化学模式识别法建立紫苏叶HPLC指纹图谱,并研究其抗流感病毒活性,为其进一步开发利用提供依据。方法采用超高效液相色谱-三重四级杆飞行时间质谱联用(UPLC-Q-TOF-MS/MS)技术,鉴定紫苏叶的主要... 详细信息

目的研究紫苏叶Perillae Folium的化学成分,化学模式识别法建立紫苏叶HPLC指纹图谱,并研究其抗流感病毒活性,为其进一步开发利用提供依据。方法采用超高效液相色谱-三重四级杆飞行时间质谱联用(UPLC-Q-TOF-MS/MS)技术,鉴定紫苏叶的主要化学成分,建立HPLC指纹图谱,匹配共有峰并进行归属,通过对照品比对指认6种化学成分,使用SPSS 22.0、SIMCA 14.1软件进行聚类分析和主成分分析(principal component analysis,PCA),测定其抗流感病毒生物效价,并通过灰色关联分析(gray correlation analysis,GCA)建立其谱效关系。结果从紫苏叶中鉴定出47个化合物;选取了19个色谱峰作为指纹图谱的共有峰,通过聚类分析可将15批紫苏叶分为2类,PCA与聚类分析结果基本一致;15批不同产地的紫苏叶样品均具有抗流感病毒活性,其生物效价为6.21、5.58、4.19、8.19、6.09、5.82、6.10、5.36、5.54、10.86、4.74、5.78、3.78、7.98、5.65 U/mg。19个共有峰与抗病毒活性存在一定的关联度(0.82~0.97),各共有峰代表的化学成分对其抗病毒活性贡献的大小顺序为峰6(咖啡酸)、19(木犀草素)>2、8、9、12(阿魏酸)>4、5、15(芹菜素-7-O-二葡萄糖醛酸苷)>7、13>11>3、10、17>1、16(野黄芩苷)>14>18(迷迭香酸)。结论构建的紫苏叶抗流感病毒活性生物效价测定方法能关联其临床功效,而UPLC-Q-TOF-MS/MS法能快速鉴定紫苏叶的成分,结合指纹图谱和化学模式识别,发现紫苏叶抗病毒作用为“多成分”共同起效的结果,这将为其质量控制提供科学依据。

关键词：紫苏叶指纹图谱化学模式识别灰色关联分析生物评价抗流感病毒活性灰色关联度分析谱效关系咖啡酸木犀草素阿魏酸芹菜素-7-O-二葡萄糖醛酸苷野黄芩苷迷迭香酸

Novel concept of nano-additive design:PTFE@silica Janus nanoparticles for water lubrication

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Friction 2024年第2期12卷 258-270页

作者： Yanfei LIU hailing HE Meng yang Ruize ZHANG Shengtao YU Tiantian yang Wenzhong WANG Fuxin LIANG School of Mechanical Engineering Beijing Institute of TechnologyBeijing 100081China Institute of Polymer Science&Engineering Department of Chemical EngineeringTsinghua UniversityBeijing 100084China MOE Key Laboratory of Bioinformatics Center for Plant BiologySchool of Life SciencesTsinghua UniversityBeijing 100084China Tsinghua-Peking Center for Life Sciences Beijing 100084China College of Biological Sciences China Agricultural UniversityBeijing 100193China

Polytetrafluoroethylene(PTFE)has been widely used as a lubrication additive for reducing friction and wear;however,the hydrophobic nature of PTFE restricts its application in eco-friendly water-based lubrication *** this study,for the first time,we designed novel PTFE@silica Janus nanoparticles(JNs)to meet the requirement for additives in water-based lubricants,which have excellent dispersion stability in water attributed to the unique amphiphilic *** introducing the lubrication of the aqueous dispersion of the JNs with a concentration of 0.5 wt%,the coefficient of friction(COF)and wear volume were reduced by 63.8%and 94.2%,respectively,comparing to those with the lubrication of pure ***,the JNs suspension also exhibits better lubrication and wear-resistance performances comparing to commercial silica and PTFE *** excellent tribological behaviors of PTFE@silica JNs as nano-additives could be attributed to the synergetic effect of the two components,where the PTFE provided lubrication through the formed tribofilms on the friction pairs,and the rigid silica further enhanced the wear-resistance *** importantly,the unique structure of JNs makes it possible to use PTFE as an additive in water-lubrication *** study shed light on the design and application of novel JNs nanomaterials as additives to meet the requirements of future industrial applications.

关键词： Janus nanoparticles(JNs) polytetrafluoroethylene(PTFE) nano-additives friction lubrication

Formation mechanisms of Ti_(3)(Si,Al)C_(2)/Al_(2)O_(3) composites from Ti_(3)AlC_(2) and SiO via low-temperature sintering

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Journal of Advanced Ceramics 2023年第1期12卷 93-110页

作者： Zhenyu ZHANG Jun JI Yingying CHEN Deli MA Sique CHEN hailing yang Guopu SHI Zhi WANG Mengyong SUN Fei CHEN Shifeng HUANG Qinggang LI Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials University of JinanJinan 250022China School of Materials Science and Engineering University of JinanJinan 250022China Institute of China North Industries Group Yantai 264003China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Ti_(3)SiC_(2)/Al_(2)O_(3) composites have attracted attention due to their excellent mechanical and electromagnetic properties,but the high temperatures(≥1400℃)required for the densification of aluminum oxide(Al_(2)O_(3))leads to the decomposition of Ti_(3)SiC_(2).To address this issue,Ti_(3)(Si_(x)Al_(1−x))C2/Al_(2)O_(3)(x represents the Si content)composites were synthesized for the first time via hot-pressing(HP)sintering and current-assisted sintering(CAS)of mixed Ti_(3)AlC_(2) and silicon monoxide(SiO)powders at 1300 and 1200℃,*** approaches produced composites with x values greater than 0.9,indicating that the compositions of the prepared composites were similar to those of Ti_(3)SiC_(2)/Al_(2)O_(3) *** synthetic mechanism involved substitution and continuous interdiffusion of Al and Si *** composite prepared by CAS at 1200℃ was compacted,whereas the composite prepared by HP had a low *** low-temperature densification mechanism is attributed to the combined effects of amorphous SiO,liquid Al,and the high heating rates for *** flexural strength and hardness of the composite prepared by CAS were also comparable to those of compacted Ti_(3)SiC_(2)/Al_(2)O_(3) composites.

关键词： aluminum oxide(Al_(2)O_(3)) current-assisted sintering(CAS) silicon monoxide(SiO) Ti_(3)(Si Al)C_(2)

Effect of annealing atmosphere on magnetic properties of pure ZnO and Na:ZnO films

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Rare Metals 2012年第1期31卷 27-30页

作者： Wu, Kai Xu, Xiaoguang yang, hailing Zhang, Jianli Miao, Jun Jiang, Yong State Key Laboratory for Advanced Metals and Materials School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China

Pure ZnO and Zn0.96Na0.04O films were grown on quartz substrates by sol-gel technology. The XRD analysis revealed that all thin films had hexagonal wurtzite structure and obvious c-axis preferred orientation. Ferromagnetism was precisely measured by an alternating gradient magnetometer (AGM). To explore the nature original ferromagnetism, the effect of annealing atmosphere on magnetic properties of the films was studied. Compared with pure ZnO, magnetic hysteresis loops showed that doping Na atoms enhanced saturation magnetism. The magnetism of the films annealed in the air atmosphere was significantly better than that in the O2 atmosphere. The photoluminescence (PL) spectrum analysis suggested that the ferromagnetism was due to the defects in the films.

关键词： pure ZnO Na-doped ZnO anneal sol-gel

Advances in the treatment of IgA nephropathy with biological agents

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Chronic Diseases and Translational Medicine 2024年第1期10卷 1-11页

作者： Yongze Zhuang hailing Lu Junxia Li Department of Nephrology 900 Hospital of the Joint Logistics TeamPLAFuzhou General Clinical Medical CollegeFujian Medical UniversityFuzhouFujianChina

Immunoglobulin A nephropathy(IgAN)is the most common primary glomerular disease,and the“four-hit”theory represents its currently accepted pathogenic *** immunity triggered by infections in the respiratory tract,intestines,or other areas leads to antigen presentation,T cell stimulation,B cell maturation,and the production of IgA-producing plasma *** proteins B-lymphocyte stimulator(BLyS)and a proliferation-inducing ligand(APRIL)are involved in this process,and alternative complement and lectin pathway activation are also part of the pathogenic *** Disease Improving Global Outcomes guidelines indicate that a specific effective treatment for IgAN is lacking,with renin-angiotensin-aldosterone system inhibitors being the primary *** research shows that biological agents can significantly reduce proteinuria,stabilize the estimated glomerular filtration rate,and reverse some pathological changes,such as endocapillary proliferation and crescent *** are four main categories of biological agents used to treat IgA nephropathy,specifically anti-CD20 monoclonal antibodies,anti-BLyS or APRIL monoclonal antibodies,monoclonal antibodies targeting both BLyS and APRIL(telitacicept and atacicept),and monoclonal antibodies inhibiting complement system activation(narsoplimab and eculizumab).However,further research on the dosages,treatment duration,long-term efficacy,and safety of these biological agents is required.

关键词： anti-CD20 monoclonal antibodies APRIL biological agents BLyS complement IgAnephropathy

Visibility restoration for real-world hazy images via improved physical model and Gaussian total variation

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Frontiers of Computer Science 2024年第1期18卷 267-269页

作者： Chuan LI Enping HU Xinyu ZHANG Hao ZHOU hailing XIONG Yun LIU College of Computer and Information Science Southwest UniversityChongqing 400715China School of Big Data and Intelligent Engineering Chongqing College of International Business and EconomicsChongqing 401520China College of Artificial Intelligence Southwest UniversityChongqing 400715China College of Electronic and Information Engineering Southwest UniversityChongqing 400715China

1 Introduction Under real-world haze conditions,the existence of haze particles in the atmosphere reduces the visibility of captured ***,the noise is inevitably introduced into the degraded image,which further deteriorates the visual quality of the *** enhance the visibility and quality of outdoor real-world hazy images,numerous algorithms have been proposed to remove haze from a single input *** existing methods are broadly lumped into two categories:prior-based methods[1,2]and learning-based methods[3–6].Unfortunately,the widely used atmospheric scattering model and the corresponding haze removal methods fail to take the noise interference into account,which may result in poor visibility restoration performance.

关键词： visibility remove noise

Thermal properties of high temperature vacuum receivers used for parabolic trough solar thermal power system

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Progress in Natural Science:Materials International 2017年第4期27卷 410-415页

作者： Qinghe Yu Jing Mi Yufan Lang Miao Du Shijie Li hailing yang Lei Hao Xiaopeng Liu Lijun Jiang Department of Energy Material & Technology General Research Institute for Non-Ferrous Metals

The receiver's emittance and vacuum pressure are the two of great significance issues on the heat-loss which is the main factor reducing the efficiency of the parabolic though systems. In this paper, the thermal steady-state equilibrium method was used to test the receivers heat-loss. The receivers with increasing emittance were tested to study the variation of heat-loss. Meanwhile, the variable vacuum pressure in the annulus that affects the efficiency of the system was investigated. The influence of vacuumizing rate and getters on the vacuum pressure and heat-loss were discussed. The result shows that the emittance and vacuum pressure affect the receiver's heat-loss dramatically, and the emittance is the major influence factor on the thermal properties. The receiver with 0.08 emittance and 10-3Pa vacuum pressure has a satisfactory heat-loss of 215.6 W/m at 400 ℃.The analysis further reveals that the synergistic effect of both emittance and vacuum pressure on the heat-loss can be reflected by the packaging temperature of the glass tube, and a fitting formula has been established to estimate the receivers' heat-loss according to the packaging temperature of the glass tube.

关键词： Parabolic trough receiver Heat-loss Emittance Vacuum pressure

High-density triple-phase contact points for enhanced photocatalytic CO_(2) reduction to methanol

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Chinese Chemical Letters 2024年第2期35卷 252-256页

作者： Hanwen Jian Kaiming Deng Tongyu Wang Chengxi Huang Fang Wu hailing Huo Bo Ouyang Xuan Liu Jingjing Ma Erjun Kan Ang Li MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing School of ScienceNanjing University of Science and TechnologyNanjing 210094China College of Information Science and Technology Nanjing Forestry UniversityNanjing 210037China State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering Ningxia UniversityYinchuan 750021China

The efficiency of photocatalytic CO_(2) reduction reaction(PCRR)is restricted by the low solubility and mobility of CO_(2) in water,poor CO_(2) adsorption capacity of catalyst,and competition with hydrogen evolution reaction(HER).Recently,hydrophobic modification of the catalyst surface has been proposed as a potential solution to induce the formation of triple-phase contact points(TPCPs)of CO_(2)(gas phase),H_(2) O(liquid phase),and catalysts(solid phase)near the surface of the catalyst,enabling direct delivery of highly concentrated CO_(2) molecules to the active reaction sites,resulting in higher CO_(2) and lower H+surface *** TPCPs thus act as the ideal reaction points with enhanced PCRR and suppressed ***,the initial synthesis of triple-phase photocatalysts tends to possess a lower bulk density of TPCPs due to the simple structure leading to limited active points and CO_(2) adsorption ***,based on constructing a hydrophobic hierarchical porous TiO_(2)(o-HPT)with interconnected macropores and mesopores structure,we have significantly increased the density of TPCPs in a unit volume of the *** with hydrophobic macroporous TiO_(2)(o-MacPT)or mesoporous TiO_(2)(o-MesPT),the o-HPT with increased TPCP density leads to enhanced photoactivity,enabling a high methanol production rate with 1111.5μmol g^(−1) h^(−1) from *** results emphasize the significance of high-density TPCPs design and propose a potential path for developing efficient PCRR systems.

关键词： Photocatalysis CO_(2)reduction reaction Photocatalyst Triple-phase contact points Methanol