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Multifactor roadmap for designing low-power-consumed micro thermoelectric thermostats in a closed-loop integrated 5g optical module

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Interdisciplinary Materials 2024年第2期3卷 326-337页

作者： dongwang Yang Yubing Xing Jiang Wang Kai Hu Yani Xiao Kechen Tang Jianan Lyu Junhao Li Yutian Liu Peng zhou Yuan Yu Yonggao Yan Xinfeng Tang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhanChina Nanostructure Research Center Wuhan University of TechnologyWuhanChina Research Center for Materials genome Engineering Wuhan University of TechnologyWuhanChina Institute of Physics(IA) RWTH Aachen UniversityAachenGermany

As the core components of fifth-generation(5g)communication technology,optical modules should be consistently miniaturized in size while improving their level of *** inevitably leads to a dramatic spike in power consumption and a consequent increase in heat flow density when operating in a confined *** ensure a successful start-up and operation of 5g optical modules,active cooling and precise temperature control via the Peltier effect in confined space is essential yet *** this work,p-type Bi_(0.5)Sb_(1.5)Te_(3)and n-type Bi_(2)Te_(2.7)Se_(0.3)bulk thermoelectric(TE)materials are used,and a micro thermoelectric thermostat(micro-TET)(device size,2×9.3×1.1mm^(3);leg size,0.4×0.4×0.5mm^(3);number of legs,44)is successfully integrated into a 5g optical module with Quad Small Form Pluggable 28 *** a result,the internal temperature of this kind of optical module is always maintained at 45.7°C and the optical power is up to 7.4 ***,a multifactor design roadmap is created based on a 3d numerical model using the ANSYS finite element method,taking into account the number of legs(N),leg width(W),leg length(L),filling atmosphere,electric contact resistance(Rec),thermal contact resistance(Rtc),ambient temperature(Ta),and the heat generated by the laser source(QL).It facilitates the integrated fabrication of micro-TET,and shows the way to enhance packaging and performance under different operating *** to the roadmap,the micro-TET(2×9.3×1mm^(3),W=0.3 mm,L=0.4 mm,N=68 legs)is fabricated and consumes only 0.89W in cooling mode(Q_(L)=0.7W,T_(a)=80℃)and 0.36Win heating mode(T_(a)=0℃)to maintain the laser temperature of 50℃.This research will hopefully be applied to other microprocessors for precise temperature control and integrated manufacturing.

关键词： 5g optical module finite element simulation micro thermoelectric thermostat Peltier effect

陆东凹陷中低成熟度页岩油储层含油性特征及“甜点”评价

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特种油气藏 2024年第4期31卷 27-35页

作者：周立国中国石油辽河油田分公司辽宁盘锦124010

针对陆东凹陷交力格洼陷中低成熟度页岩油储层分布特征与富集控制因素不明等问题,通过开展二维核磁共振分析、纳米CT扫描、干酪根显微组分鉴定等方法,对页岩油储层含油性特征进行研究,综合页岩岩相、储集性、含油性及可动性等因素,基于... 详细信息

针对陆东凹陷交力格洼陷中低成熟度页岩油储层分布特征与富集控制因素不明等问题,通过开展二维核磁共振分析、纳米CT扫描、干酪根显微组分鉴定等方法,对页岩油储层含油性特征进行研究,综合页岩岩相、储集性、含油性及可动性等因素,基于储层及含油性分级参数建立了页岩油“甜点”综合评价标准。结果表明:页岩纹层与层理的发育程度、密度、岩性等结构特征是含油性特征及分布的主要影响因素。层状含粗粒岩屑粉砂岩与纹层状长英质页岩岩相微观孔隙结构及连通性较好,比表面积小于15 m 2/g,氮气吸附平均孔径大于8 nm,为优质储层。Ⅰ+Ⅱ类“甜点”TOC大于1%,储层发育中、大孔,占比大于25%,储集空间孔径大于8 nm,含油性和可动性为中等—好,油气相对富集。该成果可为研究区页岩油有利目标优选及试验区部署评价提供技术支撑。

关键词： “甜点”评价赋存特征微观分布中低成熟度页岩油交力格洼陷陆东凹陷

喷雾干燥结合紫外交联制备甲基丙烯酸缩水甘油酯改性丝胶中空微球及其性能

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高分子材料科学与工程 2024年第3期40卷 30-38页

作者：谭宇浩杜姗韩璐张祎李勇周金利周伟涛中原工学院纺织学院河南郑州451191 中原工学院纺织服装产业研究院河南郑州451191 中原工学院郑州市绿色染整技术重点实验室河南郑州451191

为了制备高耐水性光固化丝胶蛋白(SS)微球,采用喷雾干燥与紫外交联相结合的方法,以丝胶为原料制备了甲基丙烯酸缩水甘油酯(gMA)交联SS中空微球(gMA-g-SS),该法赋予了其良好的耐水稳定性和紫外光固化性能。优化的喷雾干燥工艺参数包括:S... 详细信息

为了制备高耐水性光固化丝胶蛋白(SS)微球,采用喷雾干燥与紫外交联相结合的方法,以丝胶为原料制备了甲基丙烯酸缩水甘油酯(gMA)交联SS中空微球(gMA-g-SS),该法赋予了其良好的耐水稳定性和紫外光固化性能。优化的喷雾干燥工艺参数包括:SS浓度、进风温度及进液速度;研究了gMA浓度、二苯甲酮(BP)用量及紫外辐照时间对接枝率的影响。借助扫描电镜、红外光谱及热分析对微球表面形貌结构及稳定性进行了表征与分析。结果表明,喷雾干燥SS微球呈单分散空心结构,直径约5~20μm;gMA-g-SS微球红外光谱在1152 cm^(-1)和764 cm^(-1)处出现环氧基的吸收峰,表明gMA与SS交联成功。交联后微球呈黏连聚集状态,具有较高的紫外光固化性能且耐水稳定性大幅提升,溶失率仅为17.1%。所制备的gMA-g-SS微球具有可调的耐水稳定性和紫外光固化性,是一种有潜力的光固化3d打印生物材料。

关键词：丝胶喷雾干燥交联空心微球紫外光固化

Iodine Nutrition, Thyroid-stimulating Hormone, and Related Factors of Postpartum Women from three different Areas in China: A Cross-sectional Survey

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Biomedical and Environmental Sciences 2024年第3期37卷 254-265页

作者： SHAN Xiao Yun ZOU Yan HUANg Li Chun JIANg Shan zhou Wei Wen QIN Qiu Lan LIU Chang Qing LUO Xiao Yan LU Jia Xi MAO de Qian LI Min YANg Zhen Yu YANg Li Chen Key Laboratory of Trace Element Nutrition of National Health Committee National Institute for Nutrition and HealthChinese Center for Disease Control and PreventionBeijing 100050China Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards School of Public HealthHengyang Medical SchoolUniversity of South ChinaHengyang 241001HunanChina Zhejiang Provincial Center for disease Prevention and Control Hangzhou 310051ZhejiangChina guangxi Zhuang Autonomous Region Center for disease Control and Prevention Nanning 530028GuangxiChina Hebei Provincial Center for disease Control and Prevention Shijiazhuang 050021HebeiChina

Objective Studies on the relationship between iodine,vitamin A(VA),and vitamin d(Vd)and thyroid function are *** study aimed to analyze iodine and thyroid-stimulating hormone(TSH)status and their possible relationships with VA,Vd,and other factors in postpartum *** A total of 1,311 mothers(896 lactating and 415 non-lactating)from Hebei,Zhejiang,and guangxi provinces were included in this *** urinary iodine concentration(UIC),TSH,VA,and Vd were *** The median UIC of total and lactating participants were 142.00µg/L and 139.95µg/L,*** median TSH,VA,and Vd levels in all the participants were 1.89 mIU/L,0.44μg/mL,and 24.04 ng/mL,*** differences in the UIC were found between lactating and non-lactating *** and TSH levels were significantly different among the three *** rural UIC was higher than the urban *** mothers had a higher UIC and a higher prevalence of excessive *** UICs and TSHs levels were observed in both the Vd deficiency and insufficiency groups than in the Vd-sufficient *** adjustment,no linear correlation was observed between UIC and VA/*** interaction was found between vitamins A/d and UIC on TSH *** The mothers in the present study had no iodine ***,area type,BMI,and Vd may be related to the iodine status or TSH levels.

关键词： Median urinary iodine concentration Thyroid-stimulating hormone Vitamin A Vitamin d Postpartum women

gut commensal metabolite rhamnose promotes macrophages phagocytosis by activating SLC12A4 and protects against sepsis in mice

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Acta Pharmaceutica Sinica B 2024年第7期14卷 3068-3085页

作者： dongping Li Rongjuan Wei Xianglong Zhang Shenhai gong Meijuan Wan Fangzhao Wang Jiaxin Li Meiling Chen Ruofan Liu Yantong Wan Yinghao Hong Zhenhua Zeng Peng gu Zhang Wang Kutty Selva Nandakumar Yong Jiang Hongwei zhou Peng Chen department of Pathophysiology Guangdong Provincial Key Laboratory of ProteomicsSchool of Basic Medical SciencesSouthern Medical UniversityGuangzhou 510000China department of Critical Care Medicine Nanfang HospitalSouthern Medical UniversityGuangzhou 510000China department of gastroenterology Shenzhen HospitalSouthern Medical UniversityShenzhen 518000China Institute of Ecological Sciences School of Life SciencesSouth China Normal UniversityGuangzhou 510000China department of Environmental and Biosciences School of BusinessInnovation and SustainabilityKristian IV’s vag 3Halmstad UniversityHalmstad 30004Sweden Microbiome Medicine Center Zhujiang HospitalSouthern Medical UniversityGuangzhou 510000China

Sepsis progression is significantly associated with the disruption of gut ***,the modulatory mechanisms of gut microbiota operating.during sepsis are still ***,we investigated how gut commensals impact sepsis development in a pre-clinical *** ligation and puncture(CLP)surgery was used to establish polymicrobial sepsis in *** depleted of gut microbiota by an antibiotic cocktail(ABX)exhibited a significantly higher level of mortality than *** determined by metabolomics analysis,ABX treatment has depleted many metabolites,and subsequent supplementation with L-rhamnose(rhamnose,Rha),a bacterial carbohydrate metabolite,exerted profound immunomodulatory properties with a significant enhancement in macrophage phagocytosis,which in turn improved organ damage and ***,rhamnose binds directly to and activates the solute carrier family 12(potassium-chloride symporter),member 4(SLC12A4)in macrophages and promotes phagocytosis by activating the small g-proteins,Ras-related C3 botulinum toxin substrate1(Rac1)and cell division control protein 42 homolog(Cdc42).Interestingly,rhamnose has enhanced the phagocytosis capacity of macrophages from sepsis *** conclusion,by identifying SLC12A4 as the host interacting protein,we disclosed that the gut commensal metabolite rhamnose is a functional molecular that could promote the phagocytosis capacity of macrophages and protect the host against sepsis.

关键词： gut microbiota Sepsis Rhamnose SLC12A4 gTP-Rac1 gTP-Cdc42 Macrophage Phagocytosis

三轴形变核^(131)Ba中的奇异集体激发模式

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物理学报 2024年第11期73卷 89-100页

作者：韦锐周厚兵王思成丁兵强赟华贾晨旭陈红星郭松 C.M.Petrache d.Mengoni A.Astier E.dupont 吕冰锋 d.Bazzacco A.Boso A.goasduff F.Recchia d.Testov F.galtarossa g.Jaworski d.R.Napoli S.Riccetto M.Siciliano J.J.Valiente-dobon C.Andreoiu F.H.garcia K.Ortner K.Whitmore A.Ataç-Nyberg T.Bäck B.Cederwall E.A.Lawrie I.Kuti d.Sohler T.Marchlewski J.Srebrny A.Tucholski 广西师范大学物理科学与技术学院桂林541004 广西核物理与核技术重点实验室桂林541004 中国科学院近代物理研究所兰州730000 中国科学院大学北京100049 巴黎萨克雷大学 CNRS/IN2P3IJCLab奥赛91405 帕多瓦大学物理和天文学系帕多瓦I-35131 意大利国家核物理研究所帕多瓦分部帕多瓦I-35131 意大利国家核物理研究所莱尼亚罗国家实验室莱尼亚罗(帕多瓦)I-35020 费拉拉大学理学与自然科学院费拉拉西蒙菲莎大学化学系本拿比BC V5A 1S6 皇家理工学院物理系斯德哥摩尔S-10691 国家研究基金会iThemba加速器科学实验室西萨默塞特7123 西开普大学物理与天文系贝尔维尔ZA-7535 HUN-REN原子核研究所德布勒森4001 华沙巴斯德拉大学重离子实验室华沙02-093

利用意大利Legnaro实验室串列静电加速器提供的65 MeV^(13)C束流与122Sn靶的熔合蒸发反应布居了^(131)Ba的高自旋态,并搭建了新的能级纲图.新的能级纲图由15条转动带组成,包括三对手征双重带,其中两对正宇称手征带为赝自旋-手征四重带.... 详细信息

利用意大利Legnaro实验室串列静电加速器提供的65 MeV^(13)C束流与122Sn靶的熔合蒸发反应布居了^(131)Ba的高自旋态,并搭建了新的能级纲图.新的能级纲图由15条转动带组成,包括三对手征双重带,其中两对正宇称手征带为赝自旋-手征四重带.正负宇称手征带通过一系列增强的E1跃迁连接,表明它们之间存在八极关联.在低自旋区域搭建了一条新的转动带,通过一系列γ跃迁向νh1_(1/2)晕带退激.这种能级结构与摇摆带相似,但基于现有的实验证据还难以将它确认为摇摆带,不能排除其他集体激发机制,如γ振动的影响.

关键词：高自旋态手征带赝自旋八极关联摇摆运动

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AN INVESTIgATION OF HIgH-TEMPERATURE dEFORMATION STRENgTHENINg ANd TOUgHENINg MECHANISM OF TITANIUM ALLOY

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Acta Metallurgica Sinica(English Letters) 1998年第5期11卷 376-382页

作者： Y.g.zhou W.d.Zing H.Q.Yu Northwestern Polytechnical Univ Xi'an China

The high-temperature deformation strengthening and toughening mechanisms of titanium alloys have been investigated in this paper. The materials processed by this method produce a new tri-modal microstrvcture, which consists of 10-20% equiaxed alpha, streaky alpha and transformed beta matrix. It is found that the higher ductility of tri-modal microstructure is attributed to the equiaxed alpha's coopemtive slip and coordinated deformation with the transformed beta matrix. The streaky alpha phases not only increase the strength and creep properties, but also increase the fracture toughness. Propagating along grain boundaries between two neighboring streaky alpha phases, cracks in tri-modal microstructure make a more tortuous way, and then the materials show a higher fracture toughness. This new method is applicable to α, near α,α+β and near β titanium alloys.

关键词： titanium alloy high-temperature deformation strengthening and toughening mechanism

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安徽巢湖早三叠世短腿巢湖龙的牙齿替换研究

北京大学学报（自然科学版） 2024年第2期60卷 239-248页

作者：顾书纶江大勇周敏造山带与地壳演化教育部重点实验室北京大学地球与空间科学学院北京100871

对产自安徽省巢湖市马家山剖面下三叠统奥伦尼克阶斯帕斯亚阶南陵湖组上段的短腿巢湖龙标本(gMPKU-P-3086)进行研究,根据CT扫描数据重建牙齿及前颌骨、上颌骨和齿骨的三维模型。通过对模型进行观察和度量,并与实际标本进行对比,发现以... 详细信息

对产自安徽省巢湖市马家山剖面下三叠统奥伦尼克阶斯帕斯亚阶南陵湖组上段的短腿巢湖龙标本(gMPKU-P-3086)进行研究,根据CT扫描数据重建牙齿及前颌骨、上颌骨和齿骨的三维模型。通过对模型进行观察和度量,并与实际标本进行对比,发现以下短腿巢湖龙牙齿新的特征:1)颌骨上存在连续的牙槽沟,且内具浅的牙槽窝,牙齿为亚槽生齿;2)牙齿的大小和形状呈周期性变化,显示奇偶相间的交替模式;3)口腔前部发育单牙列,替换齿位于功能齿的远中位置;4)口腔后部发育双牙列,替换齿列位于功能齿的舌侧-远中位置。短腿巢湖龙的牙齿特征与早三叠世基干鱼龙类短尾鱼龙和歌津鱼龙具有一致性,可能代表鱼龙类牙齿的原始特征,并反映捕压式食性群团地理分布的广泛性。

关键词：短腿巢湖龙早三叠世牙齿替换 CT扫描

Taohong Siwu decoction(桃红四物汤)ameliorates atherosclerosis in rats possibly through toll-like receptor 4/myeloid differentiation primary response protein 88/nuclear factor-κB signal pathway

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Journal of Traditional Chinese Medicine 2024年第1期44卷 103-112页

作者： CHANg Fengjin zhou Peng LI guoying ZHANg Weizhi ZHANg Yanyan PENg.daiyin CHEN guangliang department of Pharmacy the First Affiliated Hospital of Anhui University of Chinese MedicineHefei 230031China School of Integrated Traditional and Western Medicine Anhui University of Chinese MedicineHefei 230012China Anhui Province Key Laboratory of Chinese Medicinal Formula Hefei 230012China School of Pharmacy Anhui University of Chinese MedicineHefei 230012China

OBJECTIVE:To investigate the effect of Taohong Siwu decoction(桃红四物汤,TSd)on atherosclerosis in rats as well as investigate the underlying mechanism based on molecular ***:Sixty healthy male Sprague-dawley rats were randomly divided into 6 groups with 10 rats in each group:control group,model group,atorvastatin group(AT,2.0 mg/kg),and TSd groups(20,10,5 g/kg)after 7 d of *** model of atherosclerosis was successfully established except the control group by high fat diet(HFd)and vitamin *** analyzers were used to detect the levels of triglyceride(Tg),total cholestero(TC),low density lipoprotein-cholesterol(LdLC)and high density lipid-cholesterol(HdL-C)in blood *** levels of tumor necrosis factor-α(TNF-α),interleukin-6(IL-6)and interleukin-1β(IL-1β)were determined by enzyme-linked immunosorbent *** IV staining and Hematoxylin and eosin staining(HE staining)were performed to observe the pathological changes in aortic *** docking technology was used to predict the best matching between the main components of TSd and the target *** expression of target proteins was further detected by quantitative real time polymerase chain reaction(q RTPCR)and Western blot ***:The results showed that TSd restricted atherosclerosis development and decreased the inflammatory cytokines in *** docking results predicted that the main components of TSd showed a strong binding ability with toll-like receptor(TLR4),myeloid differentiation primary response protein 88(My d88),and nuclear factor kappa-B(NF-κB).The results of q RT-PCR and Western blot analysis showed that the m RNA and protein expressions of TLR4,My d88 and NF-κB p65 in the aorta were reduced in atorvastatin group and TSd ***:TSd can ameliorate atherosclerosis in rats,and the underlying mechanism is supposed be related to the suppression of inflammatory response by regulating TLR4/My d88/NF-κB signal pathway.

关键词： atherosclerosis molecular docking simulation tolllike receptor 4 myeloid differentiation factor 88 NF-kappa B signal transduction Taohong Siwu decoction