41 research outputs found

    基于TH7122.1芯片的无线数据传输模块设计

    Get PDF
    TH7122.1芯片是一款由比利时Melexis公司开发的低功耗单片集成无线收发芯片。主要介绍该芯片的功能特点,并以该芯片为基础设计一种低成本的半双工无线数据传输模块。调试结果表明,所实现的模块无线数据通信稳定可靠。利用该模块可以实现结构简单、性能稳定的无线数据通信系统,在某些短距离无线应用场合具有实用价值,对其他无线应用系统的设计具有参考价值

    Exploitation of Techniques for Detecting Harmful Organisms on Imported Wood and Wood Packaging Materials

    No full text
    本計劃將針對進口原木材及本土林木中重要病原(特別是長喙殼菌類真菌)進行偵測,建立菌種形態特性及DNA序列資料庫,提供快速且正確檢測木材中此類有害真菌之基礎。潛在病原菌之偵測及鑑定包括形態及分子序列方式,依據不同之菌種類別之特性,以特有之方式進行菌種分離,針對特定rDNA片段進行解序,建立形態及分子鑑定標準,有助於發展快速之檢測方法,攔截有害病原之輸入。對於木質包裝材,建立重要病蟲害資訊庫及建立進出口木質包裝材之標準採樣流程、快速病蟲害鑑定技術及監測系統。重要工作項目包括收集世界各國經由木質包裝材輸入之重要病蟲害文獻資料、建立進出口木質包裝材之標準採樣流程及病蟲害檢測程序,持續監測經木質包裝材輸出入之重要病蟲害等四大項。預期收集經由進口木質包裝材輸入之重要病蟲害資訊並建立資料庫,以及建立有效取樣標準流程,進而協助檢疫人員監測與管制經木質包裝材輸入之重要病蟲害。The aims of this project is to inspect detrimental fungi, particularly ophiostomatoid fungi, on wood which is from importation or from indigenous plants. Morphological characteristics and DNA sequences of these fungi can be established to provide the basis for their accurate and quick detection. Both methods of morphology identification and DNA sequence comparison will be applied. Specific approaches of isolation will be adopted to obtain specific groups of fungi. Specific primers are used to amplify specific DNA fragments for comparisons with DNA sequences deposited in GenBank. Based on the morphological and molecular data acquired, it can be expected that these potential pathogens can be warded off from our country. As to the imported / exported wood packaging materials, a standard sampling procedure of a fast screening process and a monitoring system will be set up for these materials. In this project, three tasks will be included, (i) literature survey of important pests and pathogens for wood (ii) establishing a standard procedures for inspecting and identifying of pests and plant pathogens and (iii) continuous monitoring important pests and pathogens information of imported / exported wood packaging materials, are proposed to accomplish our goal. The success of this project would help quarantine officers monitor and control important imported / exported wood packaging materials importing from wood packaging material

    輸出入木材及木質包裝材有害生物檢測技術之研發

    No full text
    The aims of this project is to inspect detrimental fungi, particularly ophiostomatoid fungi, on wood which is from importation or from indigenous plants. Morphological characteristics and DNA sequences of these fungi can be established to provide the basis for their accurate and quick detection. Both methods of morphology identification and DNA sequence comparison will be applied. Specific approaches of isolation will be adopted to obtain specific groups of fungi. Specific primers are used to amplify specific DNA fragments for comparisons with DNA sequences deposited in GenBank. Based on the morphological and molecular data acquired, it can be expected that these potential pathogens can be warded off from our country. As to the imported / exported wood packaging materials, a standard sampling procedure of a fast screening process and a monitoring system will be set up for these materials. In this project, three tasks will be included, (i) literature survey of important pests and pathogens for wood (ii) establishing a standard procedures for inspecting and identifying of pests and plant pathogens and (iii) continuous monitoring important pests and pathogens information of imported / exported wood packaging materials, are proposed to accomplish our goal. The success of this project would help quarantine officers monitor and control important imported / exported wood packaging materials importing from wood packaging material.本計劃將針對進口原木材及本土林木中重要病原(特別是長喙殼菌類真菌)進行偵測,建立菌種形態特性及DNA序列資料庫,提供快速且正確檢測木材中此類有害真菌之基礎。潛在病原菌之偵測及鑑定包括形態及分子序列方式,依據不同之菌種類別之特性,以特有之方式進行菌種分離,針對特定rDNA片段進行解序,建立形態及分子鑑定標準,有助於發展快速之檢測方法,攔截有害病原之輸入。對於木質包裝材,建立重要病蟲害資訊庫及建立進出口木質包裝材之標準採樣流程、快速病蟲害鑑定技術及監測系統。重要工作項目包括收集世界各國經由木質包裝材輸入之重要病蟲害文獻資料、建立進出口木質包裝材之標準採樣流程及病蟲害檢測程序,持續監測經木質包裝材輸出入之重要病蟲害等四大項。預期收集經由進口木質包裝材輸入之重要病蟲害資訊並建立資料庫,以及建立有效取樣標準流程,進而協助檢疫人員監測與管制經木質包裝材輸入之重要病蟲害

    离散型双俯冲的地球动力学:东南亚Molucca海俯冲带的三维数值模拟研究

    No full text
    地质记录和地球物理观测表明,在地质历史中单个大洋板块两侧可能同时发生俯冲,即离散型双俯冲作用(Divergent Double Subduction,DDS)。DDS可能对板块构造运动产生重要影响,如促进洋盆的闭合,岩浆弧的迁移、增生以及大陆的生长。由于地质历史上古老DDS的地质记录多已变得模糊,难以很好约束地DDS发生和演化,因此

    俯冲驱动地幔物质上涌与板内玄武岩质浆作用:以华南中生代HIMU型玄武岩为例

    No full text
    关于板内玄武岩的成因机制,前人提出了多种动力学模型,包括岩石圈伸展、加厚岩石圈拆沉、俯冲板片拆离等。这些动力学机制通常把板内玄武岩的源区局限在对流软流圈或岩石圈地幔。近年来随着认识程度的不断加深,具有洋岛玄武岩地球化学特征的岩浆很可能来自更深的地幔,如下地幔和地幔转换带。纵观全球中新世以来的小规模板内玄

    Guía de estudio para ser usada como complemento de la unidad audiotutorial sobre el mismo tema

    No full text
    细菌性疾病是水产养殖病害中最常见且危害甚为严重的一类疾病1。长期以来,一直用于鱼类细菌性疾病防治的西药类药物,由于会导致病原菌产生耐药性,在鱼体内产生药物残留危害人类健康等副作用而被限制使用2。因此,为了选择更加安全有效的防治方法,疫苗免疫逐步得到了人们的重视

    鱼类病原菌外膜蛋白及其免疫原性研究进展

    No full text
    细菌性疾病是水产养殖病害中最常见且危害甚为严重的一类疾病1。长期以来,一直用于鱼类细菌性疾病防治的西药类药物,由于会导致病原菌产生耐药性,在鱼体内产生药物残留危害人类健康等副作用而被限制使用2。因此,为了选择更加安全有效的防治方法,疫苗免疫逐步得到了人们的重视

    中性粒细胞曳尾结构形成的力-生物学耦合机制

    No full text
    目的中性粒细胞(PMN)曳尾的形成对局部组织环境的重建,以及后续免疫细胞的募集至关重要,但其形成机制和对力学信号(流体剪切和基底硬度)的响应尚不清楚。方法通过荧光抗体对PMN的标志性分子Ly6G进行标记,体外监测PMN在爬行过程中曳尾的形成,利用免疫荧光技术表征曳尾形貌及其黏附分子及骨架相关蛋白的含量和分布;采用微流控技术构建不同硬度的微流道,模拟血流剪切下基底硬度对曳尾形成的调控

    基底硬度和流体剪切调控中性粒细胞募集单核细胞的生物力学机制

    No full text
    目的动脉粥样硬化过程中,中性粒细胞(PMN)能够介导单核细胞的大量募集,但募集机制和生理力学因素(流体剪切、血管硬度)如何调控该过程并不完全清楚。研究表明,快速迁移的中性粒细胞(PMN)可在基质上遗留富含β2整合素的曳尾结构。探讨中性粒细胞曳尾结构形成与单核细胞募集的力-生物学耦合机制。方法为模拟体内生理病理血管的力学环境,采用微流控技术构建了基底硬度(0.78~280 kPa)和流体剪切(0.1 Pa)耦合的微流道系统

    内蒙古贺根山蛇纹岩化流体来源的H-O-B同位素地球化学制约

    No full text
    corecore