Design and Implementation of Smart Home System Based on SIP Protocol

在移动互联网高速发展的催生下，移动终端的应用软件犹如雨后春笋般出现。网络服务以及云端服务的普及和便利给数字化智能家居带来了新的发展契机，尤其是实现数字家庭网关服务器使得数字家居物联网变成可能，更是能够通过移动终端，例如主流的Android、IOS、WindowsPhone来连接服务器，实现IP电话、即时通讯、远程控制、监控、门禁等功能，实现实际意义上的数字家居物联网。 本文提出了基于SIP协议的家居服务器模型的设计方案，从硬件架构和软件架构两个方面进行分析，完成对服务器体系架构的设计和开发流程的规划，并遵循服务器的架构设计和功能设计，结合现有的实验环境，设计完成了一套运行于服务器应用层的智能...With the rapid development of mobile Internet, the application software of mobile terminal has sprung up like bamboo shoots. This thanks to the development of the server. The popularization of network services and cloud services conservation brings new developmental opportunities to the field of the smart home, especially the implementation of digital home gateway server makes digital home network...学位：工程硕士院系专业：软件学院_软件工程学号：X201123044

区域医疗物联网监管平台总体规划与设计

目的:解决当前医疗物联网应用中顶层设计缺乏和标准不统一的问题,加强医疗物联网数据监管,充分利用物联网可穿戴设备采集的数据,辅助医生及时有效地进行疾病预防干预和治疗。方法:采用Hadoop、REST、Hbase等关键技术,构建区域医疗物联网监管平台,实现健康监护,并以厦门慢病全程健康管理为切入点进行应用与实践。结果:医疗物联网监管平台在厦门全程慢病管理中的成功应用,能有效辅助基层医疗卫生机构管理者进行监管决策,辅助家庭医生进行健康照护,提升了居民的满意度与家庭医生的服务存在感。结论:区域医疗物联网监管平台能够为医院管理者和医务人员提供有效的健康数据支撑,辅助医务人员为患者提供个性化的预防和治疗解决方案,提升医疗服务水平与居民的满意度

基于振动信号的采矿机截割负载分类

针对人为判断采矿机截割负载类型的方式具有一定误差和滞后性的问题，提出了一种基于小波包分解和麻雀搜索算法优化BP神经网络（SSA−BPNN）的采矿机截割负载分类方法。该方法包括信号特征提取和模式分类2个部分：在信号特征提取部分，对采集的采矿机摇臂振动信号进行小波包分解，得到各子频带能量及信号总能量，经归一化处理后得到表征不同负载类型的特征向量，并利用主成分分析法对特征向量进行降维处理；在模式分类部分，通过SSA优化BPNN的初始权值和阈值，将特征向量作为SSA−BPNN的输入，从而实现负载分类识别。以MG500/1170−AWD1采矿机为对象，将磁吸式加速度传感器吸附于采矿机摇臂一轴靠近支架侧的壳体处，采集采矿机滚筒空载、截割铝土和岩石3种工况下的振动信号进行试验。试验结果表明：不同截割负载下振动信号在各子频带能量上表现出一定的差异性，表明经小波包分解后得到的能量特征可以作为区分不同负载类型的特征向量；与BPNN相比，SSA−BPNN收敛速度更快、识别准确率更高，负载分类识别准确率达95.3%

An Effective Deploying Strategy of Relay Nodes in Line-of-sight MIMO System

视距环境下的MIMO系统无法获得空间自由度增益.为了在视距环境下充分发挥MIMO系统的性能,提出了一种次优的中继节点布置策略,能够在增加少量中继节点后获得较佳的系统性能.在该策略中,根据MIMO系统能提供的最大空间自由度确定中继节点的数量,并且根据收发天线阵列的波束主瓣方向确定各个中继节点的位置.仿真结果表明,在较高信噪比时,系统容量优于加入中继节点前,随着信噪声比增加,优势愈明显.并且中继节点位置出现偏差时,系统性能仅存在很小的波动.No spatial degree-of freedom gain is obtained for MIMO system in Line-of-Sight(LOS) environments.A suboptimal deploying strategy of relay nodes is developed to improve performance in LOS MIMO system,which require only a few relay nodes.In this strategy,the number of relay nodes is determined by the maximum number of spatial degree of freedom provided by MIMO system.And the location of relay nodes is determined by direction of main lobes of transmit and receive antennas.Simulation results indicate that,compared to LOS MIMO system,the system based the scheme obtains capacity gain in large SNR which become larger as SNR become larger.Moreover,system capacity only fluctuates a little when the positional deviation of relay nodes happens.国家重点基础研究发展规划项目(2007CB310608

MR Immunoimaging Using Antihuman Lung Cancer Monoclonal Antibodies Labelled Gadolinium

目的：探讨gd标记抗肺癌单抚对荷瘤裸鼠的定向增强效应。材料与方法：用dTPA环二酸研与抗肺癌单抗3d3和gd3--3+分别偶联，制备出gd-dTPA-Igg：建立6只荷瘤裸鼠模型；将gd-dTPA-Igg按2Mg单抗/只的剂量从尾静脉内注入；观察平扫及注药后6小时瘤体磁共振信号。结果：gd-dTPA-Igg能选择性增加瘤灶的信号强度。结论：磁共振免疫成像为肺癌定性提供一种潜在新的方法。Purpose: To explore the Possibilitv of specific contrast enhancemen1 in nude mice hosted lung cancer using Gd labelled monocloa1 antibodies against lung adenocarcinorna.Materials and Methods: Uslng cyclic anhydride DTPA as a bifunctional chelat1ng a- gent, Gd3+ was attached to a monoclnal antihody (3D3).6 nude mlce carrying the 1ung cancer were esta[)lished.Then, Gd - DTPA - IgG was intravenously injected at a dose of 2mg IgG/mouse.MR scans wcre performed before and 6 hours after administration of Gd - DTPA - IgG.ResultS: all tumor of nodules were specifically cnhancecl with Gd - DTPA - IgG.ConcIusion: MR immunoimaging is a promise method for detecting lung cancer

厚耗尽层面垒探测器及其应用

描述了厚度为１．６ｍ ｍ 灵敏面积为１０ｍ ｍ 的全耗尽型面垒探测器的研制及性能，同时给出了这种探测器用于硬Ｘ射线（２ｋｅＶ＜ Ｅｘ ＜ ２０ｋｅＶ）辐射场的模拟测试结果。The thick full depleted surface barrier detectors with depleted layer of 1.6 mm and active area of φ10 mm in diameter have been developed. The performance of the detectors and its application in the measurement of hard X ray radiation field were described

PI3-K与活动性狼疮肾炎Th2 细胞因子的关系

【目的】了解磷脂酰肌醇三激酶(PI3-K)在活动性狼疮肾炎患者外周血单个核细胞中的表达, 并探讨其与Th2 细 胞因子的关系。【方法】利用免疫沉淀、免疫印迹和RT-PCR 技术检测12 例正常人和14 例活动性狼疮肾炎患者外周血单个 核细胞PI3-K 磷酸化产物、IL-6 mRNA 和IL-10 m RNA 表达, 观察PI 3-K 特异性抑制剂PY294002 对活动性狼疮肾炎患者外 周血单个核细胞IL-6 m RNA 和IL-10 m RNA 表达的影响。【结果】自发培养时活动性狼疮肾炎组外周血单个核细胞PI3-K 磷酸化产物明显高于健康对照(1.14±0.23 vs 0.46±0.12, P =0.023), CD3 单抗诱导下活动性狼疮肾炎组PI3-K 磷酸化产 物表达仍然高于健康对照组(2.09±0.63 vs 0.65±0.14, P =0.016)。活动性狼疮肾炎组外周血单个核细胞PI3-K 磷酸化产 物表达量与IL-6 mRNA 和IL-10 m RNA 呈正相关关系(r =0.652 , P =0.008;r =0.718 , P =0.007)。PI3-K 特异性抑制 剂PY294002 明显抑制了抗CD3 单抗诱导的活动性狼疮肾炎组IL-6 mRNA(2.32±0.51 vs 0.57 ±0.15 , P =0.009)和IL-10 m RNA(1.71 ±0.33 vs 0.67±0.11, P =0.006)的表达。【结论】PI3-K 过度活化可能介导了IL-6 和IL-10 细胞因子的高效表 达而参与狼疮肾炎的发病过程

不同浓度葡萄糖对大鼠腹膜间皮细胞表达p21WAF1 的影响

【目的】观察不同浓度的葡萄糖对大鼠腹膜间皮细胞p21WAF1 表达的影响。【方法】大鼠腹膜间皮细胞在含糖 13.8 g/L 和38.6 g/ L 的无血清培养基培养24 h 后, 用流式细胞仪分析细胞周期分布, 用RT-PCR法测定p21WAF1 的表达水平。 【结果】经含糖13.8 g/L 和38.6 g/L 培养基培养24 h 后腹膜间皮细胞大多出现细胞肥大和停滞于细胞周期的G1 期, 以38.6 g/ L 组明显。高浓度葡萄糖刺激p21WAF1 mRNA 表达, 38.6 g/ L 组表达明显增高(P <0.05);无血清常规培养基组和甘露醇 组几乎无表达。【结论】高糖可刺激间皮细胞p21WAF1 的表达, 且可能与高糖作用下细胞肥大及G1 期阻滞有关

Enhancing Mechanical Performance and Intelligent Response of Chitosan/mah PEGmah-N-Vinylpyrrolide Double Network Hydrogel

先以壳聚糖(CS)用戊二醛(gA)交联为刚性网络,后将聚乙二醇马来酸酐双酯(MAH PEgMAH)与n-乙烯基吡咯烷酮(VP)的共聚物交联成柔性网络,合成了一种高强度且具有P H值、电场敏感性的智能型双网络水凝胶。利用红外光谱、扫描电镜表征了凝胶的化学结构和内部形态;X射线衍射研究了凝胶的结晶性能;研究了凝胶的力学性能及其影响因素,探讨了凝胶的P H值、电场敏感性能。研究结果表明,当CS含量为20%,gA用量为0.2 g gA/g CS,PEg相对分子质量为1000,bIS用量为0.5%时,所制备凝胶的压缩强度可达9.3 MPA。随着PEg相对分子质量的增加,凝胶的P H值敏感性增强;随CS交联度的增加,凝胶的最大弯曲角和电场敏感性先增加后降低。A kind of high strength intelligent double network(DN) hydrogel was synthesized by two-step cross linked method.Firstly chitosan(CS) was cross linked with glutaraldehyde(GA),secondly polyethylene glycol and maleic anhydride esterified products(mah PEGmah) and N- vinylpyrrolidone(VP) copolymers were cross linked with N,N'-methylene double acrylamide(BIS).The DN hydrogel has good p H and electric field sensitivity.The structure of resultant hydrogel was characterized by Fourier transform infrared(FT-IR) spectroscopy,scanning electron microscopy(SEM),crystallization properties of composite hydrogels were investigated by X-ray diffraction(XRD).It's found that when the CS content is 20%,the GA used content is 0.2 g GA/g CS,the molecular weight of PEG is 1000,and the BIS used content is 0.5%,the hydrogel strength of the compression rises up to 9.3 MPa.With the molecular weight of PEG increasing,the p H stim-response sensitivity of hydrogel is improved.With the degree of crosslinking increasing,the maximum bending angle of the gel and the electric field sensitivity of the hydrogel are decreased

Prediction of Energy Resolution in the JUNO Experiment

International audienceThis paper presents the energy resolution study in the JUNO experiment, incorporating the latest knowledge acquired during the detector construction phase. The determination of neutrino mass ordering in JUNO requires an exceptional energy resolution better than 3% at 1 MeV. To achieve this ambitious goal, significant efforts have been undertaken in the design and production of the key components of the JUNO detector. Various factors affecting the detection of inverse beta decay signals have an impact on the energy resolution, extending beyond the statistical fluctuations of the detected number of photons, such as the properties of liquid scintillator, performance of photomultiplier tubes, and the energy reconstruction algorithm. To account for these effects, a full JUNO simulation and reconstruction approach is employed. This enables the modeling of all relevant effects and the evaluation of associated inputs to accurately estimate the energy resolution. The study reveals an energy resolution of 2.95% at 1 MeV. Furthermore, the study assesses the contribution of major effects to the overall energy resolution budget. This analysis serves as a reference for interpreting future measurements of energy resolution during JUNO data taking. Moreover, it provides a guideline in comprehending the energy resolution characteristics of liquid scintillator-based detectors