基于合作域的无线传感器网络数据存储机制研究

通过分析无线传感器网络(WSNs)的特性及其应用特点,提出了一种新型的基于合作域的无线传感器网络数据存储机制,以便在节约节点能量和内存开销的前提下提高数据的可靠性。指出了其设计目标和体系结构,定义了数据存储合作域、管理节点及其建立机制,给出了在合作域内根据网络编码理论进行数据存储与提取的算法与流程。通过仿真测试,证明其能够在较低的资源开销下提高信息的可靠性。

“泛珠三角”区域合作与发展的经济及政治视角

区域协调发展是社会进步的重要标志,也是一个国家、一个地区社会经济发展的重要战略.本文以现阶段我国区域协调发展中比较有代表性的“泛珠三角”经济区为例,从经济与政治两方面的视角“论述。泛珠三角”区域合作与协调发展在我国社会经济发展中的重要战略意义.

The antinociceptive role of central arginine vasopressin is involved in the endogenous opiate peptide, serotonin and acetylcholine systems

Our previous work has demonstrated that arginine vasopressin (AVP) plays a role in pain modulation. The present study investigated which kinds of neuropeptides and neurotransmitters in central nervous system might be involved in AVP antinociceptive role in the rat. The results showed that (1) intraventricular injection (icv) of V1 receptor antagonist [d(CH2)5Tyr(Me)AVP] and V2 receptor antagonist [d(CH2)5[D-Ile2, Ile4, Ala9-NH2]AVP] blocked the antinociceptive effect induced by AVP (icv), (2) the opiate recaptor antagonist (naloxone) reversed the antinociceptive effect induced by AVP (icv), and (3) both the serotonin receptor antagonist (cypoheptadine) and M receptor antagonist (atropine) could attenuate the antinociceptive effect induced by AVP (icv);but (4) oxytocin, dopamine, N-methyl-D-aspartate (NMDA), γ-aminobutyric acid (GABA), N, α or β receptor antagonist did not influence the antinociceptive effect induced by AVP (icv). The data suggested that AVP antinociceptive role was involved in the endogenous opiate peptide, serotonin and acetylcholine systems in central nervous system.

中国对外开放与跨境经济合作区发展策略

近年来,我国跨境经济合作区发展迅速,成为沿边开放和区域合作的新亮点。本文对我国沿边跨境经济合作区的发展现状和态势进行了描述,分析了跨境经济合作区建设存在的问题和困难及其产生的根源,提出了加快我国跨境经济合作区发展的若干对策建议。