检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

硅胶牙刷刷头设计及其模具制造工艺

工程塑料应用 2019年第3期47卷 77-80页

作者：俞荣标王华兴浙江工业职业技术学院浙江绍兴312000 浙江一派克管道科技有限公司浙江绍兴312000

从分析对比传统牙刷刷毛与硅胶牙刷刷毛性能着手,根据硅胶材料的特性和牙刷刷头及刷毛的结构特点,提出了优化刷毛设计的台阶思路和解决方法,并对刷头模具中微小孔的制造工艺加工难点进行分析研究,通过对切削力的分析,确定影响微小孔加... 详细信息

从分析对比传统牙刷刷毛与硅胶牙刷刷毛性能着手,根据硅胶材料的特性和牙刷刷头及刷毛的结构特点,提出了优化刷毛设计的台阶思路和解决方法,并对刷头模具中微小孔的制造工艺加工难点进行分析研究,通过对切削力的分析,确定影响微小孔加工钻头折断的主要因素为切削速度和切削深度,最后通过在精雕Caver400TE上加工进行实验验证,得到刷头模具微小孔加工的一系列工艺参数,经列表分析,得出较为合适的制造参数,验证了该方法的有效性和可行性。

关键词：硅胶牙刷微小孔刷头模具加工钻头切削速度切削深度

在线全文

学校读者我要写书评

暂无评论

光伏电站安装常识

太阳能 2010年第4期 60-62页

作者：余荣彪江苏振发太阳能科技发展有限公司技术部

一安装注意事项光伏系统的安装和试运行要求特定的技术和知识，必须由有资格的工程师来完成。安装者应该预知安装过程中可能发生伤害的风险，包括电击。

关键词：安装过程光伏电站光伏系统试运行工程师电击

古越文化在绍兴城市品牌视觉形象中的设计表现

在线全文

学校读者我要写书评

暂无评论

西部皮革 2019年第13期41卷 23-24页

作者：俞荣标浙江工业职业技术学院

本文从古越文化的多元化和城市品牌视觉形象的理论入手,提出了构建绍兴城市品牌视觉形象设计的基本思路,主要通过挖掘和选取最具绍兴代表性文化,深入对所选取的鉴湖水文化、名仕文化、书法文化作基因剖析与视觉化研究,进一步高度提炼和... 详细信息

本文从古越文化的多元化和城市品牌视觉形象的理论入手,提出了构建绍兴城市品牌视觉形象设计的基本思路,主要通过挖掘和选取最具绍兴代表性文化,深入对所选取的鉴湖水文化、名仕文化、书法文化作基因剖析与视觉化研究,进一步高度提炼和现代化设计,有效构建了以绍兴城市标志为核心的系列内容,预估了该设计一旦投入,将有效传承古越文化和有力提升绍兴城市品牌影响力。

关键词：古越文化绍兴城市品牌视觉形象

MICROCRYSTALLINE RARE EARTH COMPLEX DOPED PMMA BULK FOR ORGANIC SOLID-STATE LASERS

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

MICROCRYSTALLINE RARE EARTH COMPLEX DOPED PMMA BULK FOR ORGA...

A NOVEL INORGANIC MATERIAL FOR LIQUID LASER

Asia Conference on Nanoscience and Nanotechnology Abstracts Book

作者： XIAOMING QIU LEI ZHAO rongbiao yu KEHAN yu XIANGXING XU LEI JIANG SAMMING SI DAN CHEN LI XU BO PENG WEI HUANGInstitute of Advanced Materials Fudan University Shanghai 200433 China

＜正＞ It is well known that the rare earth elements are good gain media for lasers in inorganic materials such as crystals and glasses. They have been studied extensively and have already been applied to many fields. In recent years, with the rapid development of organic electronics and photonics, organic lasers have been attached more and more importance. Amplified Spontaneous Emission was observed in many organic molecules and laser output was obtained in some of them . At the same time, rare earth complex doped polymer solutions and thin films were also studied . However, up to now, the rare earth doped organic solid-state lasers have not been achieved. In this paper, we focused on preparing the microcrystalline rare earth complex doped PMMA bulk. The rare earth complex Eu（TTA）3（PyON） was dissolved into the MMA monomer, through the latex polymerization, the rare earth complex was well dispersed into the PMMA organic matrix in the form of microcrystal ranging from 60nm to 80nm. The latex was poured into a mold and heated and finally a transparent organic bulk was obtained. By further studying its optical properties and other physical properties, we are trying to get laser output for developing rare earth doped organic solid-state lasers and amplifiers.

关键词： microcrystalline bulk otganic laser

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

A NOVEL INORGANIC MATERIAL FOR LIQUID LASER

Efficacy of Sanqi(Radix Notoginseng)in treating cerebral hemorrhage in rats with traumatic brain injury

Asia Conference on Nanoscience and Nanotechnology Abstracts Book

作者： Zhongcheng FAN rongbiao yu Xiaoming QIU Kehan yu Xiangxing XU Lei JIANG Sanming SI Dan CHEN Li XU Lei ZHAO Bo PENG Wei HUANGInstitute of Advanced Materials Fudan University Shanghai 200433 China.

＜正＞ Solid state lasers have been widely used in defense works, mechanical processing, information technology and many other areas. However, they still have quite a few disadvantages. As is well known, it is costly and difficult to homogeneously manufacture the crystal and glass bulks in big size. These solid bulks can not avoid defects, which will develop damaged spots when running before the spots grow rapidly. The growing spots are very harmful and even dangerous for the performance and maintenance of high power laser systems. What is more, it is awfully difficult to cool the solid lasing materials, thus the running cycle period and working life shrank badly, and the laser system become low repeated usable. Fortunately, inorganic liquid laser can gracefully tackle such nuts. First of all, it is pretty easy to get lasing liquid in almost unlimited volume at a uniform density. As far as most thin liquids are concerned, the structure is nearly ideally homogenized when flowing. Even if some defects are developed while lasing, the spots will get resolved by the flowing ambient branches to prevent such damage. It is also quite convenient to realize the high repeated laser to prolong both the running cycle period and working life. In our work, neodymium doped yttrium aluminum garnet （Nd: YAG） was manufactured through the aqueous solutions of aluminum, yttrium and neodymium chlorides. After calcination and sinter, Nd: YAG nanocrystals by the size of tens of nanometers were realized. They were homogeneously dispersed in inorganic solvent, such as POCl3, BBr3 and TiCl4, with properly adjusted refractive index and density. Tbe laser emission was also achieved while the mixture was recirculated. It might have a potential application in high repeated laser system.

关键词： liquid laser inorganic nanosized particle.

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Journal of Traditional Chinese Medicine 2021年第2期41卷 262-269页

作者： JIANG Tao ZHOU Xiaqing JIANG Huifang YING rongbiao ZHANG Zhirong CAI Danli WU yu FANG Haijun WANG Lingcong Department of Neurosurgery of the First Affiliated Hospital of Zhejiang Chinese Medical University Hangzhou 310006China Department of Intensive Care Unit of the First Affiliated Hospital of Zhejiang Chinese Medical University Hangzhou 310006China Department of Hematology Tongde Hospital of Zhejiang ProvinceHangzhou 310012China Department of Surgical Oncology Tumor Hospital of TaizhouWenling 317502China

OBJECTIVE:To evaluate the protective efficacy of Sanqi(Radix Notoginseng)on cerebral hemorrhage in a rat model of traumatic brain injury(TBI)by investigating plasminogen activator inhibitor-1(PAI-1),tissue-type plasminogen activator(t-PA),nuclear factor-κB(NF-κB,p-p65),nitric oxide(NO),endothelin(ET),cluster differentiation(CD61CD62),and ***:The free-fall method was used to create a rat model of ***-eight rats were randomly divided into six groups:the blank group,sham group,model group,low-dose Sanqi(Radix Notoginseng)group,middle-dose Sanqi(Radix Notoginseng)group,and high-dose Sanqi(Radix Notoginseng)*** 24 h after the model was created,we investigated brain MRI,brain tissue morphology using HE staining,flow cytometry,and immunohistochemical ***:Cerebral hemorrhage was aggravated in TBI rats(observed in brain specimens,brain MRI,and brain tissue HE).Cerebral immunohistochemistry results demonstrated that the expression of t-PA,PAI-1 and p-p65 increased significantly in TBI rats,while t-PA/PAI-1 had a significant *** addition,CD61CD62,D2D,and ET were significantly increased in TBI rats,and PT and APTT were significantly prolonged;in contrast,NO was significantly ***(Radix Notoginseng)decreased cerebral hemorrhage in TBI rats(observed in brain MRI and brain tissue HE),and increased t-PA/PAI-1,CD61CD62 *** also significantly decreased the expression of t-PA,PAI-1,and p-p65 in brain immunohistochemistry and significantly decreased PT,APTT,D2D,and ***,there were no differences in NO between the model group and the Sanqi(Radix Notoginseng)***:Sanqi(Radix Notoginseng)can decrease the expression of p-p65,increase t-PA/PAI-1,and stem traumatic intracranial hemorrhage in a TBI rat model.

关键词： Sanqi(Radix Notoginseng) Brain injuries,traumatic Plasminogen activator inhibitor-1 Tissue-type plasminogen activator p-p65

EC-5土壤水分传感器温度影响机理及补偿方法研究

在线全文

学校读者我要写书评

暂无评论

农业机械学报 2010年第9期41卷 168-172页

作者：张荣标刘骏张磊余功江江苏大学电气信息工程学院镇江212013

针对EC-5传感器温度实验中出现的两种截然不同现象,根据温度对土壤介电常数和电导率影响的机理分析,建立土壤水分传感器测试结果随温度变化的理论模型。通过对模型的仿真分析发现,EC-5传感器测得的土壤水分含量随温度变化的趋势与土壤... 详细信息

针对EC-5传感器温度实验中出现的两种截然不同现象,根据温度对土壤介电常数和电导率影响的机理分析,建立土壤水分传感器测试结果随温度变化的理论模型。通过对模型的仿真分析发现,EC-5传感器测得的土壤水分含量随温度变化的趋势与土壤电导率密切相关。利用最小二乘支持向量机对传感器的温度实验数据建立补偿函数并提出相应补偿算法,有效地抵消了温度变化造成的传感器测试误差。

关键词：土壤介电常数土壤水分传感器最小二乘支持向量机温度补偿

Relations Between Paleoclimatological Conditions and Mineralogical Characteristics of Clays in Miocene Sediments at Linxia Basin, China

在线全文

学校读者我要写书评

暂无评论

矿物学报 2013年第S1期33卷 129-129页

作者： yu Na HONG Hanlie LI Zhaohui ZHANG Kexin LI rongbiao College of Earth Sciences Jilin University Faculty of Prospecting and Surveying Changchun Institute of Technology Faculty of Earth Sciences China University of Geosciences Geosciences Department University of Wisconsin-Parkside

Linxia Basin is a late Cenozoic fault-block basin along the border between the Tibet plateau and the Loess plateau in Northwestern China. Its formation and sediments record may be directly affected by the structural dynamics and the uplift of the Tibet Plateau. For this reason, we studied the mineral characteristics of the Maogou formation of Miocene sediments using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD results showed that quartz, chlorite, illite, calcite, plagioclase, orthoclase, kaolinite, and trace palygorskite are present throughout the sequence of the cross-section in Linxia basin. In contrast, gypsum and ankerite occur occasionally in the upper portion of the Miocene deposits. The content of calcite varied with layers in the profile and was relatively concentrated in mudstone. Chlorite and illite were observed transforming into palygorskite under SEM observation. Based on the mineral characteristics and the change of mineral composition, especially the clay minerals, it could be inferred that an arid environment prevailed in the region with warm and cold intervals during Miocene time.

关键词： clay minerals Linxia basin paleoclimate palygorksite

在线全文

学校读者我要写书评

暂无评论

WSN土壤湿度采集节点电压补偿方法研究

农业机械学报 2010年第11期41卷 178-182页

作者：张荣标余功江张磊刘骏张业成江苏大学电气信息工程学院镇江212013

针对适用于WSN土壤湿度采集节点的EC-5传感器对电源电压敏感的问题,从传感器工作原理入手分析电源电压引起检测误差的来源,且发现当传感器各项参数确定后,这种误差随着被测土壤湿度增大而增大。采用CC2430芯片作为WSN信息传输节点,建立... 详细信息

针对适用于WSN土壤湿度采集节点的EC-5传感器对电源电压敏感的问题,从传感器工作原理入手分析电源电压引起检测误差的来源,且发现当传感器各项参数确定后,这种误差随着被测土壤湿度增大而增大。采用CC2430芯片作为WSN信息传输节点,建立具有多节点的上下位机WSN土壤湿度采集系统,以节点电压u和被测土壤实际湿度θ为对象,运用神经网络对采集节点中非线性土壤湿度传感器系统进行逆向建模,在上位机上实现由电源电压引起EC-5传感器检测误差的补偿,实验结果表明,该方法能有效地减少节点电池电压变化对WSN土壤湿度采集精度的影响。

关键词：无线传感器网络土壤湿度神经网络补偿