WTO对家畜口蹄疫流行和无口蹄疫状态的规定

2000年英国暴发大规模的灾难性的口蹄疫(FMD),使本病的重要性得到充分证明(Knowles et al,2001).本病在英国的动物中迅速传播,暴发几千例,主要引起牛羊感染,影响范围很大(其暴发流行的情况见图).英国自1968年以来属无FMD国家.

面向弹丸炮口状态的自行火炮结构参数全局灵敏度

合理评估自行火炮结构参数在给定分布条件下对弹丸炮口状态的影响,不仅有利于提高自行火炮的射击精度,而且还可以改进自行火炮的生产工艺水平。为获得较准确的弹丸炮口状态,建立了能够同时考虑弹丸膛内运动和车体振动的某自行火炮整体发射动力学模型。针对某些自行火炮参数存在相关性等情况,提出了一种基于Rosenblatt转换理论的全局灵敏度分析方法。该方法在输入变量为任意连续独立实变量条件下,通过对独立变量组1阶敏感系数和全敏感系数的估计,实现了相关变量组1阶敏感系数和全敏感系数的估计。基于上述模型和方法,进行了某自行火炮最大射程条件下,面向弹丸炮口状态的火炮结构参数全局灵敏度分析。结果显示:底盘纵向转动惯量是最大射程条件下影响火炮弹丸炮口状态的最大因素。

VC++实现计算机并口的直接输入/输出

在计算机的各种外部接口中 ,并口的速度最快 ,通常 CCD、视频采集、扫描仪等都使用了并口 ,并口边信的最大缺点是抗干扰差、传送距离短。计算机的并口有 SPP、PS/2、EPP和 ECP等工作模式 ,每种工作模式的工作寄存器各不相同。在 VC+ +中 ,提供了 — inp( )和—outp( )

计算机并行接口在计量测试中的应用

介绍了计算机并行接口的数据口、控制口、状态口寄存器的功能。充分利用其自动保持高电平和低电平的内部锁存器,并以计量检测中的应用为例,阐述了TC2.0、VC++、VB下的编程方法。

968例食管(贲门)癌手术吻合器重建术后吻合口的观察

对９６８例食管（贲门）癌手术行吻合器重建食管胃吻合口状态的术后观察及并发症分析。本组食管癌４５５例，贲门癌５１３例，术后吻合口瘘发生率０．８３％，吻合口狭窄０．４１％，５年生存率３０．５％，１０年生存率２０．５％，通过用食管胃造影及胃镜的术后观察吻合口状态的动态变化，认为吻合口直径平均２１ｍｍ，吻合口随术后时间的延续无逐渐狭窄的改变。吻合口周缝钉随术后时间延长逐渐脱落，胃包套吻合口起到了一定抗返流作用。

调督和胃针法在中风后中枢性面瘫中的应用

目的探究调督和胃针法对中风后中枢性面瘫者的治疗疗效。方法选取2022年1月—2022年12月在该院就诊的中风后中枢性面瘫患者109例,采用随机数表法分为观察组(56例)和对照组(53例)。对照组采用温胆汤加减治疗,观察组患者在对照组基础上联合调督和胃针法治疗。比较两组中医证候评分、面部神经功能、口唇微循环状态变化情况,以及治疗过程中不良反应发生情况。结果治疗后,观察组患者面瘫中医证候(急躁易怒、面色黯滞/淡白、少言懒语、疼痛及舌淡黯)评分均低于对照组(P<0.05)。治疗后,观察组发夹形血管、排列整齐血管、线型流态血管占比均高于对照组(P<0.05)。治疗后,观察组House-Brackmann量表(H-B)评分以及面部肌电波幅高于对照组(P<0.05),面部肌电潜伏期短于对照组(P<0.05)。两组患者的不良反应发生率比较,差异无统计学意义(P>0.05)。结论调督和胃针法联合温胆汤加减治疗是一种非常有效的中西医结合疗法,值得推广。在治疗中风后中枢性面瘫方面,该疗法能够改善患者的神经功能,减轻肌肉麻痹,改善患者预后。

空气/泡沫钻井条件下水层判别方法探讨

空气/泡沫钻井过程中,使用泡沫钻井费用比使用空气钻井高出很多,但空气钻井携砂能力明显差,不利于井壁稳定,所以出水层段必须使用泡沫钻井,因此在空气/泡沫钻井过程中,及时发现和识别水层,及时更换循环介质是十分重要的。在伊朗19+2气井项目钻井过程中,对综合录井资料进行重新的认识和解释,探索出了一套水层识别方法。

NSGA-Ⅱ based traffic signal control optimization algorithm for over-saturated intersection group

In order to improve the efficiency of traffic signal control for an over-saturated intersection group, a nondominated sorting genetic algorithm Ⅱ（NSGA-Ⅱ） based traffic signal control optimization algorithm is proposed. The throughput maximum and average queue ratio minimum for the critical route of the intersection group are selected as the optimization objectives of the traffic signal control for the over-saturated condition. The consequences of the efficiency between traffic signal timing plans generated by the proposed algorithm and a commonly utilized signal timing optimization software Synchro are compared in a VISSIM signal control application programming interfaces （SCAPI） simulation environment by using real filed observed traffic data. The simulation results indicate that the signal timing plan generated by the proposed algorithm is more efficient in managing oversaturated flows at intersection groups, and, thus, it has the capability of optimizing signal timing under the over-saturated conditions.

Problem of interoperability in semantic web service system

In order to fully realize semantic interoperability among distributed and heterogeneous applications on the web, a set of effective interoperability mechanisms is presented. This mechanism adopts service interactive interfaces （SII） and service aggregative interfaces （SAI） modeled with abstract state machine （ASM） to abstractly describe the behavior of the invoked web service instances, which makes business processing accurately specify tasks and effectively solves the problems of communication and collaboration between service providers and service requesters. The mechanism also uses appropriate mediators to solve the problems of information and coinmunication incompatibility during the course of service interaction, which is convenient for service interoperability, sharing and integration. The mechanism＇ s working principle and interoperability implementation are illustrated by a use case in detail.

基于JTAG的在线编程实现

在分析了 JTAG 接口的结构以及 JTAG 状态机的工作原理的基础上,针对目前 JTAG 接口实现在线编程的一些问题,给出了一种简单可行的方法,实现对 ATMEL 公司 Atmega128内部 FLASH 的在线编程。该方法用软件代替了编程器硬件电路,其可靠性和稳定性在实际系统中得到了充分的验证。

行动起来,亚健康人

天天在空调环境中出没的你是否常有这样的困惑,只上了半天班就疲惫不堪;开会时老板不满地盯着你打哈欠的大嘴;什么体力活都没干,总是莫名其妙地浑身酸痛。10块钱挂一个专家号,全身检查做了个遍,慈眉善目的医生拿着花花绿绿的化验单说,你没有任何毛病。

Steering Vibrational Population Transfer via Double-∑-Type Laser Scheme

The vibrational state-selected population transfer from a highly vibrationally excited level to the ground level is of great importance in the preparation of ultra-cold molecules. By using the time-dependent quantum-wave-packet method, the population transfer dynamics is investigated theoretically for the HF molecule. A double-E-type laser scheme is proposed to transfer the population from the ｜v=16〉 level to the ground vibrational level ｜v=0〉 on the ground electronic state. The scheme consists of two steps： The first step is to transfer the population from ｜v=16〉 to ｜v=7〉 via an intermediate level ｜v=11〉, and the second one is to transfer the population from ｜v=7〉 to ｜v=0〉 via ｜v=3〉. In each step, three vibrational levels form a E-type population transfer path under the action of two temporally overlapped laser pulses. The maximal population-transfer efficiency is obtained by optimizing the laser inten- sities, frequencies, and relative delays. Cases for the pulses in intuitive and counterintuitive sequences are both calculated and compared. It is found that for both cases the population can be efficiently （over 90%） transferred from the ｜v=-16〉 level to the ｜v=0〉 level.

First Principles Study of Half Metallic Properties of VSb Surface and VSb/GaSb (001) Interface

The structural, electronic, and magnetic properties of VSb in zincblende, and NiAs phases, VSb （001） film surfaces and its interfaces with GaSh （001） have been investigated within the framework of the density functional theory using the FPLAPW＋lo approach. The NiAs structure is more stable than the ZB phase, ZB VSb is found to a half-metallic ferromagnetic. The V-terminated surfaces retain the half-metallic character, while the half-metallicity is destroyed for Sb-terminated surfaces due to surface states, which originate from p electrons. The phase diagram obtained through the ab-initio atomistic thermodynamics shows that the formation energy of ZB VSb is about 0.1 Ryd. The half-metallicity character is also preserved at VSb/GaSb （001） interface. The conduction band minimum （CBM） of VSb in the minority spin case lies about 0.47 eV above that of GaSb, suggesting that the majority spin can be injected into GaSb without being flipped to the conduction bands of the minority spin.

XPS Analysis of Surface and Interface States for PTC DA/ p-Si Heterojunction

The surface and interface of heterojunction (HJ) formed with organic semiconductor (3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA)) and inorganic semiconductor p-Si were measured and analyzed by X-ray photoelectron spectroscopy (XPS).The results indicate that, in PTCDA molecule,the binding energy ( E b) of C is 284.6 eV and 288.3 eV, corresponding to C of the perylene and C of the anhydride, respectively, and the binding energy of O is 531.3 eV and 531.1 eV, corresponding to C of C=O in the anhydrides and C of C-O-C, respectively. Moreover, PTCDA lost its anhydrides and only its perylenes were left in the HJ interface.

Assessing benthic ecological status in coastal area near Changjiang River estuary using AMBI and M-AMBI

The Changjiang(Yangtze)River estuary has been subject to a variety of anthropogenic pressures in recent decades.To assess the ecological health of the coastal benthic ecosystem adjacent to the estuary,three surveys were conducted in 2005,2009,and 2010.The AZTI's Marine Biotic Index(AMBI)and multivariate-AMBI(M-AMBI)were used to analyse the benthic ecological status of this coast.The AMBI indicate that the ecological status of the coast adjacent to the Changjiang River estuary was only slightly degraded in all 3 years.In contrast,the M-AMBI indicated that the ecological status was seriously degraded,a result that is most likely due to pollution and eutrophication induced by human activities.The assessment of the coast's ecological status by the AMBI was not in agreement with that of the M-AMBI at some stations because of lower biodiversity values at those sites.The analysis of the two indices integrated with abiotic parameters showed that the M-AMBI could be used as a suitable bio-indicator index to assess the benthic ecological status of the coast adjacent to the Changjiang River estuary.The reference conditions proposed for the coast of the Changjiang River estuary should be further evaluated in future studies.Designation of local species could also provide an important reference for Chinese waters.To improve the reliability of AMBI and M-AMBI,further research into the ecology of local species is required to understand their arrangement in ecological groups.

XPS Investigation on Surface and Interface Electronic States of Alq_3/ITO

The surface and interface electronic states of tris (8 hydroxyquinoline) aluminum (Alq 3)/indium tin oxide (ITO) were measured and analyzed by X ray photoelectron spectroscopy (XPS). The results indicated that, in Alq 3 molecule, the binding energy ( E b) of Al atoms is 70.7 eV and 75.1 eV, corresponding to Al(O) and Al(Ⅲ), respectively; The binding energy of C is 285.8 eV, 286.3 eV, and 286.8 eV, corresponding to C of C-C group, C-O, and C-N bond, respectively. N is the main peak locating at 401.0 eV, corresponding to N atom of C-N=C. O atoms mainly bond to H atom, with the binding energy of 533.2 eV. As the sputtering time of Ar + ion beam increases, Al 2p , C 1s , N 1s , O 1s , In 3d 5/2 and Sn 3d 5/2 peaks slightly shift towards lower binding energy, and Al 2p , C 1s and N 1s peaks get weaker, which contributes to diffusing the oxygen, indium and tin in ITO into Alq 3 layer.

Systems Neuroengineering: Understanding and Interacting with the Brain

In this paper, we review the current state- of-the-art techniques used for understanding the inner workings of the brain at a systems level. The neural activity that governs our everyday lives involves an intricate coordination of many processes that can be attributed to a variety of brain regions. On the surface, many of these functions can appear to be controlled by specific anatomical structures; however, in reality, numerous dynamic networks within the brain contribute to its function through an interconnected web of neuronal and synaptic pathways. The brain, in its healthy or pathological state, can therefore be best understood by taking a systems-level approach. While numerous neuroengineering technologies exist, we focus here on three major thrusts in the field of systems neuroengineering： neuroimaging, neural interfacing, and neuromodulation. Neuroimaging enables us to delineate the structural and functional organization of the brain, which is key in understanding how the neural system functions in both normal and disease states. Based on such knowledge, devices can be used either to communicate with the neural system, as in neural interface systems, or to modulate brain activity, as in neuromodulation systems. The consideration of these three fields is key to the development and application of neuro-devices. Feedback-based neuro-devices require the ability to sense neural activity （via a neuroimaging modality） through a neural interface （invasive or noninvasive） and ultimately to select a set of stimulation parameters in order to alter neural function via a neuromodulation modality. Systems neuroengineering refers to the use of engineering tools and technologies to image, decode, and modulate the brain in order to comprehend its functions and to repair its dysfunction. Interactions between these fields will help to shape the future of systems neuroengineering--to develop neurotechniques for enhancing the understanding of whole- brain function and dysfunction, and the management of neurological and mental disorders.

Research on transformation from UML statechart to interface automata

This paper studies the problem of deriving an interface automata model from UML statechart, in which, interface automata is a formaliged model for describing component behavior in an open system, but there is no universal criterion for deriving behavior from component to construct the model. UML is a widely used modeling standard, yet it is very difficult to apply it to system verification and testing directly for its imprecise semantics. After analyzing the expression ability of the two models, several transforma- tion rules are defined and each step of transformation is described in detail, after that, the approach is illustrated with an example. The paper provides a method for acquiring interface automata and lays the foundation for related research.

Study on Urban Hierarchy Status of Sports Population in Jiangxi Province

The survey shows that urban sports population in Jiangxi Province have the following characteristics： the ＂jobless or unemployed＂ , ＂retired＂ vastly outnumber office workers, which reflects the uneven distribution of various strata; men outnumber women among the young and mid-aged and women are slightly outnumber men among the elderly, which reflects the uneven gender distribution; sports participation investment of higher income strata is relatively high, and low-income people are taking universal sports activities. To optimize the structure of sports population, the government needs to increase public investment in sports venues and facilities and publicity of the national fitness program, using legislation to protect off work time and raising the minimum income standards, and urging enterprises to set staff room, sports venues and facilities.