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An epidermal electrode based triboelectric walking energy harvester for wearable wireless sensing applications

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Science China(Technological Sciences) 2024年第3期67卷 949-957页

作者： CHANG ShiYuan liU FuHai CHEN JinKai XIA lianBin zhou Hao JIANG JingYang DONG Kang ZHANG ChenHao WU Yun CHEN Jin XUAN Weipeng SUN lingling JIN Hao DONG ShuRong LUO JiKui Ministry of Education Key Laboratory of RF Circuits and Systems Hangzhou Dianzi UniversityHangzhou 310018China Special Equipment College Hangzhou Vocational&Technical CollegeHangzhou 310018China College of Information Science and Electronic Engineering Zhejiang UniversityHangzhou 330027China ZJU-Hangzhou Global Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 311200China

Harvesting bio-kinetic energy using a triboelectric nanogenerator(TENG) is one of the promising routes to solve the sustainable energy supply problem for wearable electronics. However, additional materials, complex fabricating processes or specific mechanical structures are needed for existing TENGs to harvest bio-kinetic energy. Besides, they need to be tightly attached to the human body, which may result in detachment and malfunction under tense human motion. Herein, an intrinsic epidermal electrode-based TENG(E-TENG) is proposed to harvest human walking energy. The wearing shoes and ground are used as tribo-materials, and the human epidermis is used as the back electrode of the E-TENG. Compared with the traditional TENGs,the E-TENG does not need any additional tribo-materials and complex mechanical structures. Under optimal conditions, the voltage output of E-TENG can reach 914 V. E-TENG has been used as a self-powered warning sensor and pedometer sensor for demonstration. Furthermore, E-TENG based self-powered wireless sensor system has been developed using a newly designed micro energy electronic switch(MEES). Ambient ultraviolet intensity, temperature and humidity information can be monitored and then transmitted to mobile phone every 3.5 min, demonstrating great potential for widespread wearable applications.

关键词： triboelectric nanogenerator wearable wireless sensing self-powered

Study on thickness uniformity of Ta_(2)O_(5) film evaporated on the inner-face of a hemispherical substrate

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Optoelectronics Letters 2021年第11期17卷 673-677页

作者： XU lingmao HE Yanchun li kun zhou Hui XIONG Yuqing Science and Technology on Vacuum Technology and Physics Laboratory Lanzhou Institute of PhysicsLanzhou 730001China

Theoretical analysis and experimental study on the thickness distribution of Ta_(2)O_(5) film evaporated on the inner-face of a hemispherical substrate are demonstrated. It is derived that the value of n/R and L/R influence the film thickness distribution(where R is the radius of the hemisphere, n and L are the horizontal distance and vertical height between the evaporation source and the center of the hemisphere, respectively). The whole hemispherical substrate can be coated when n≤L+R, otherwise there is a "blind area" on the substrate when the substrate is self-rotating. A hemispherical composite substrate with a radius of 200 mm is coated with Ta_(2)O_(5) protective film under a certain configuration, the thickness of Ta_(2)O_(5) film at the edge is 0.372 times the film at the vertex which shows that the evaporation characteristics of Ta_(2)O_(5) tend to be a point source.

关键词： Study on thickness uniformity of Ta_(2)O_(5)film evaporated on the inner-face of a hemispherical substrate

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土石坝反滤料包线设计方法

水利技术监督 2024年第5期 244-247页

作者：李平周芳山东电力工程咨询院有限公司山东济南250013

谢拉德方法是国内外反滤层反滤设计的主要方法,为反滤层特征粒径设计提供了依据,但是其在规范中描述高度凝练,不便于设计人员理解和掌握。为方便工程设计人员应用,文章结合工程实例,介绍了反滤层特征粒径的计算方法,基于此方法给出了反... 详细信息

谢拉德方法是国内外反滤层反滤设计的主要方法,为反滤层特征粒径设计提供了依据,但是其在规范中描述高度凝练,不便于设计人员理解和掌握。为方便工程设计人员应用,文章结合工程实例,介绍了反滤层特征粒径的计算方法,基于此方法给出了反滤层设计的流程,给出了级配曲线各特征粒径计算的关键步骤为反滤层级配设计人员提供了参考。

关键词：土石坝反滤层流程图级配特征粒径

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油品检定仪器精度提升及标准化方法探索

纯碱工业 2024年第4期 32-34页

作者：周莉荆莹山东柏森化工技术检测有限责任公司山东东营257000

设备润滑油的品质直接影响机械的运转性能与寿命,因此准确检定其关键指标至关重要。本文系统探讨了提升检定仪器精度、实现行业标准化的解决方案。通过优化粘度计、水分仪等核心部件设计,改进信号处理与自动标定环节,仪器线性度和重复... 详细信息

设备润滑油的品质直接影响机械的运转性能与寿命,因此准确检定其关键指标至关重要。本文系统探讨了提升检定仪器精度、实现行业标准化的解决方案。通过优化粘度计、水分仪等核心部件设计,改进信号处理与自动标定环节,仪器线性度和重复性得到显著提升。在检定方法上,针对新型合成润滑油的特性,构建了基于多元回归的标准曲线修正模型,形成一套规范化操作规程。数据处理中,采用小波变换与局部加权回归散点平滑相结合的融合算法,抑制了噪声与异常值影响。多个典型矿物油与合成油检定案例表明,改进方案能使仪器精度提高,为后续推广应用和行业标准制定奠定了基础。

关键词：润滑油检定精度提升标准曲线修正模型小波变换标准化

靶向烧伤创面的荧光显像工具:低pH插入肽的应用研究

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中华核医学与分子影像杂志 2024年第3期44卷 164-169页

作者：朱树先曹溆姚建忠周芮冬杨月月陈凯何昆昆明医科大学研究生院昆明650500 解放军联勤保障部队第九二〇医院泌尿外科昆明650000 大理大学临床医学院大理671003

目的利用低pH插入肽(pHliP)-变体7(var7)-异硫氰酸荧光素(FITC)探索一种靶向烧伤创面的精确显像工具,以更好地进行烧伤清创。方法建立大鼠烧伤模型(n=12),尾静脉注射不同浓度(0.5、1.5和2.0 mg/ml)pHliP-var7-FITC进行活体荧光显像。通... 详细信息

目的利用低pH插入肽(pHliP)-变体7(var7)-异硫氰酸荧光素(FITC)探索一种靶向烧伤创面的精确显像工具,以更好地进行烧伤清创。方法建立大鼠烧伤模型(n=12),尾静脉注射不同浓度(0.5、1.5和2.0 mg/ml)pHliP-var7-FITC进行活体荧光显像。通过荧光偶联物聚集至烧伤创面的集中位置,结合病理切片判断创面损伤坏死范围;并检测pHliP-var7-FITC在心、肝、肾、脑等重要器官的残留及毒性。采用Kruskal-Wallis秩和检验、Bonferroni校正法及单因素方差分析进行数据分析。结果24 h内,0.5 mg/ml组、1.5 mg/ml组、2.0 mg/ml组烧伤创面单位面积荧光光子数分别为1.49(1.31,1.65)、2.46(1.88,2.68)、2.77(1.94,3.10)×107 p·s-1·cm-2·Sr-1,其荧光光子数总体分布差异有统计学意义(H=73.55,PliP-var7-FITC能精准靶向聚集在烧伤创面,呈现烧伤组织与正常组织的清晰界限,辅助临床外科手术清创判断损伤范围。

关键词：烧伤光学成像荧光膜蛋白质类荧光素-5-异硫氰酸盐细胞,培养的大鼠

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我国农村订单定向医学生的违约风险及其治理

南京医科大学学报（社会科学版） 2024年第4期24卷 336-342页

作者：周勇李诗薇李旭贵阳幼儿师范高等专科学校学前教育系贵州贵阳550000 贵阳幼儿师范高等专科学校社会工作系贵州贵阳550000 贵州师范大学教育学院贵州贵阳550000

定向医学生违约直接影响定向医学生免费培养的政策效能。文章基于不完全契约理论与理性经济人学说的双重分析发现,国家与定向医学生不同价值取向背后有限理性博弈、政策确定性承诺与不确定性过程拉扯中背离倾向加剧、定向医学生免费培... 详细信息

定向医学生违约直接影响定向医学生免费培养的政策效能。文章基于不完全契约理论与理性经济人学说的双重分析发现,国家与定向医学生不同价值取向背后有限理性博弈、政策确定性承诺与不确定性过程拉扯中背离倾向加剧、定向医学生免费培养信息不对称性滋生机会主义行为、医学教育专用性投资与个体利益间失衡诱发套牢问题等多重因素会引发违约风险。规避定向医学生的违约风险,须承认定向医学生就业契约不完全性的客观存在,联动各方利益主体让渡利益空间,构建有效的治理策略。

关键词：农村订单定向医学生违约风险治理策略不完全契约理论理性经济人学说

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师范类专业认证背景下的课程思政:价值意蕴与实践路径

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湖北第二师范学院学报 2024年第3期41卷 29-33页

作者：李艳周政陕西师范大学教育学部西安710062 淄博师范高等专科学校山东淄博255100

课程思政是落实高校思想政治教育,实现立德树人根本任务的重要保证。师范类专业认证赋予了课程思政新时代新师范的特殊价值意蕴。在师范类专业认证背景下,探究师范类专业课程思政的内涵与价值意蕴,从根本上解决“为谁培养教师、怎样培... 详细信息

课程思政是落实高校思想政治教育,实现立德树人根本任务的重要保证。师范类专业认证赋予了课程思政新时代新师范的特殊价值意蕴。在师范类专业认证背景下,探究师范类专业课程思政的内涵与价值意蕴,从根本上解决“为谁培养教师、怎样培养教师、培养什么样的教师”的问题,从顶层设计、课程建构、师资队伍、协同育人四个维度提出了师范类专业课程思政的实践路径。

关键词：师范类专业认证师范类专业课程思政

TRBC1作为潜在靶点治疗T细胞来源肿瘤的研究进展

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现代肿瘤医学 2024年第6期32卷 1163-1166页

作者：周萌李慧武汉科技大学附属天佑医院血液内科湖北武汉430000

T细胞来源肿瘤具有侵袭性、易耐药且预后不良的特点,常规治疗后复发率高,目前对于其的治疗不存在特效药。若能改进早期诊断和治疗手段,将有效改善患者的预后。细胞免疫治疗对B细胞来源的血液系统肿瘤获得较高的治愈率。却因为缺乏合适... 详细信息

T细胞来源肿瘤具有侵袭性、易耐药且预后不良的特点,常规治疗后复发率高,目前对于其的治疗不存在特效药。若能改进早期诊断和治疗手段,将有效改善患者的预后。细胞免疫治疗对B细胞来源的血液系统肿瘤获得较高的治愈率。却因为缺乏合适的靶点对治疗T细胞来源血液系统肿瘤的免疫治疗效果不佳。最新发现的T细胞受体β链恒定结构域1(TRBC1)作为一个潜在的治疗靶点,给T细胞来源肿瘤的诊断和治疗带来希望。本文将对TRBC1在当前的疾病诊断和细胞免疫治疗中研究进展进行综述。

关键词： T细胞抗原受体 T细胞受体β链恒定结构域1 血液肿瘤诊断 CAR-T细胞治疗 T细胞活化信号转导

Episodic Orogeny Deduced from Coeval Sedimentary Sequences in the Foreland Basin and Its Implication for Uplift Process of Longmen Mountain,China

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Journal of Mountain Science 2013年第1期10卷 29-42页

作者： li Yong SU De-chen zhou Rong-jun li Hai-bing Alexander L.DENSMORE YAN liang YAN Zhao-kun State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of Technology Institute of Geology Chinese Academy of Geological Science Institute of Earthquake Engineering Seismological Bureau of Sichuan Province Institute of Hazard and Risk Research and Department of Geography Durham University

Longmen Mountain located at the boundary between the Sichuan Basin and Tibetan Plateau,representing the steepest gradient of any edges of the *** endmember models of uplift process and mechanism have been proposed,including crustal thickening,crustal flow,and crustal isostatic *** we use coeval sedimentary sequences in the foreland basin to restraint uplift process and mechanism in the Longmen *** more than 10,000 m thick Late TriassicQuaternary strata filled in this foreland basin and can be divided into six megasequences that are distinguished as two distinct *** first type is the wedge-shaped megasequences which are sedimentary response of strong active thrust loading events,characterized by a high rate of subsidence and sediment accumulation,coarsening-upward succession and a dual-sourced sediment *** type includes Late Triassic,Late Jurassic to Early Cretaceous and Late Cretaceous to Paleogene *** second type is the tabular megasequences,characterized by the low rate of subsidence and sediment accumulation,finingupward succession,and a single-sourced sediment supply,which is sedimentary response of isostatic rebound and erosion *** type includes the Early to Middle Jurassic,Middle Cretaceous and Neogene to Quaternary *** on sedimentary,active tectonic,geomorphic evidence,we infer that the direction has been reversed from SSWdirected sinistral strike-slip to NNE-directed dextral strike-slip during 40-3.6 Ma,and since 3.6 Ma,the Longmen Mountain thrust belt belong to times of isostatic rebound and erosional unloading with NNEdirected dextral *** suggests that crustal isostatic rebound is a primary driver for uplift and topography of the present Longmen *** Wenchuan(Ms8.0) earthquake,which ruptured a large thrust fault with NNE-directed dextral strikeslip along the range front,is an active manifestation of this crustal isostatic rebound process with dextral st

关键词： Wedge-shaped megasequence Tabular megasequence Orogenic loading Erosional unloading Uplift process Longmen Mountain Foreland basin