Hardware Design of Wireless Multimedia Terminal on Vehicles Based on Au1200

介绍一种无线车载多媒体终端的硬件设计方案,该终端以Alchemy Au1200多媒体处理器为核心,将无线网络技术与多媒体技术相结合,具有音视频播放、远程监控管理、无线数据高速传输、红外遥控等功能,为车载多媒体设备向无线化、综合化过渡提供一种解决方案。经测试,该无线车载多媒体终端硬件运作良好,结果达到设计要求。A hardware scheme for wireless multimedia terminal on vehicles is introduced.The terminal,which is based on Alchemy Au1200,has multi-funtions such as audio and video playing,high speed wireless transmission of multimedia files,remote monitoring management and infrared remote control.So security,entertainment and communications are incorporated.It provids a solution for vehicular multimedia system in wireless and integration development.厦门科技计划项目资助(3502Z20073002

Analysis of Agaricus bisporus Themotolerance Related Gene with RT-RAPD

应用RT RAPD技术 ,以 6bp随机引物反转录双孢蘑菇 (Agaricusbisporus) 0 2菌株常温培养和高温诱导菌丝体的总RNA ,10bp随机引物PCR扩增 ,得到几个高温诱导差异片段 ,对OPU13引物的差异片段 0 2U13克隆并测序 ,发现该片段可能编码tRNAVal(密码子GUC)基因 .推测GUC可能是稀有密码子 ,在某些耐温基因中出现频率较高 .识别该稀有密码子的tRNAVal在常温条件下不表达或表达量很少 ,而在高温诱导下引发一定的调控机制促使它们大量的合成 ,进一步引发相关的耐温基因表达Using the RT-RAPD method, total RNA was reverse-transcripted with 6 bp random primer, then cDNA was amplified by PCR with 10 bp random primer. Several related thermotolerance DNA fragments of strain 02 were obtained. The fragment 02U13 with OPU13 random primer was cloned and sequenced . It is found that 02U13 is probable a gene fragment of tRNA Val. GUC may be a rare codon, and it is abundant in some related themotolerance genes. The gene of tRNA Val for GUC is silence or low activity at normal temperature. But it express actively when the organism was induced at high temperature, and result of the high expression of the themotolerance related genes.福建省自然科学基金资助项目 (C982 0 0 0 5

硅光电负阻器件的光双稳态瞬态特性

在该文中，一方面对电路参数与硅光电负阻器件的光学双稳态开关时间的关系进行了研究，另一方面对器件在低、中、高三个不同输入光强区的光学双稳态响应的变化趋势进行了研究。硅光电负阻器件包括有各种类型，该文主要对“λ”型双极光电负阻晶体管(PLBT)以电阻和光电二极管作为负载的情况进行了讨论

螅状独缩虫(Cachesium polypinum)遗传多样性的RAPD分析

用随机扩增多态DNA(RAPD)技术对武汉的汉口 (CP_1)、汉阳 (CP_2 )和武昌 (CP_3)三个地区缘毛类的螅状独缩虫 (Cachesiumpolypinum)进行了遗传多样性分析。结果表明 :这种动物存在广泛的变异 ,三个地域群体之间的遗传相似度为 0 .6 52 2～ 0 .7385(平均值为 0 .6 92 1) ,各群体之间遗传相似度大小依次为 :CP_2—CP_3>CP_1—CP_2 >CP_1—CP_3。本文对这些变异与环境的关系和以RAPD技术研究缘毛类等动物遗传多样性的意义作

SPNRD的光电负阻特性与光学双稳态特性间的对应关系

文章对电阻为负载时，硅光电负阻器件(SPNRD)的光电负阻特性和光学双稳态特性间的对应关系进行了系统的分析，定义了描述静态光学双稳态特性的7个基本参数，并分析了负载电阻(R_L)和电源电压(V_0)对这些参数的影响，理论分析结果与实测结果相一致。所得出的结论适用于由负阻特性产生双稳态特性的所有情况

INSTRUMENT FOR DETECTING SENSITIVITY OF STRESS-CORROSION CRACKING DUE TO SULPHIDE INCLUSION IN PIPING STEEL

本装置为一种含硫油气集输系统的安全检测装置，其结构由信号检测部分和数据处理两部分组成。检测部分为带有前置NHA型传感器探头。有旁路联接式和直接插入式两种。将信号输入给带有电流信号放大的A/V转换器，再送给A/D转换，然后送给微机作数据处理，最后由打印机将数据

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies