深耕于行业做行业应用的最佳代言人——记新汉AFC地铁自动售检票设备专用机发布会

<正>目前工控机的发展非常迅速,应用领域也越来越广泛。熟悉工控机行业的人都知道,有一家工控机厂商与众不同,它不做标准机,而是深耕于行业,为行业量身订制工控机,这就是新汉电脑股份有限公司     

TriQuint 亮相深圳IIC为中国企业带来领先的RF解决方案

<正>提起TriQuint公司,人们并不陌生,这是一家领先的RF半导体公司,自1985年从Tektronix分离出来独立成立公司至今,始终致力于向全球主要通信公司提供高性能的射     

微涡流混凝技术在西桥水厂中的应用

介绍了微涡流混凝工艺的核心———涡流反应器的特点及其混凝机理 ,指出对不同表面开孔直径的选用与开孔率的控制是其技术关键。同时阐述其在广东梅州西桥水厂的改造及运行情况。运行实践表明 ,涡流反应器具有混凝效率高 ,絮凝时间短 ,出水质量优 ,适应变化能力强 ,施工方便等特点。     

融合常用语的大规模疾病术语图谱构建

国家卫计委要求医疗机构使用国际疾病分类(international classification of diseases, ICD)编码,然而由于临床疾病描述存在大量的常用词,导致电子病历中录入的诊断名称与ICD编码直接映射匹配率低.基于区域健康平台上的真实诊断数据,构建了融合常用语的疾病术语图谱.具体来说,在基于疾病构成成分的规则算法基础上,提出了基于数据增强的BERT(bidirectional encoder representation from transformers)上下位关系识别算法,将5万多个诊断常用语和ICD10(international classification of diseases 10th revision,Chinese version)中的疾病进行同义关系和上下位关系识别,进一步融合了ICD11(international classification of diseases 11th revision,Chinese version)的层次结构,此外,还提出了基于疾病-科室关联图谱的任务分配方法以进行人工校验,最终94 478个疾病实体形成了包含1 460条同义关系、46 508条上下位关系的大规模疾病术语图谱.评估实验表明,基于疾病术语图谱,对临床诊断数据的覆盖率比基于ICD10的直接映射编码的覆盖率提升了75.31%,另外,利用疾病术语图谱自动进行编码疾病相比于医生人工编码会缩短约59.75%的编码时间,且正确率达到85%.
     

业务受理系统中业务逻辑模型的研究与实现

业务受理系统主要供监督中心工作人员使用,在城市管理信息系统和呼叫中心（站）系统的基础上．对城市管理问题进行登记、核实、转发、立案等操作,根据监督员问题上报和社会公众举报生成案卷记录,并促使案卷记录在系统中流转,实现与协同工作系统的信息传递。业务受理是数字化城市管理的基础业务流程,其业务逻辑多元而复杂,本文在详细研究业务受理系统业务逻辑的基础上,提出业务逻辑模型化思想,并将该设想应用于数字化城市子项目中,取得了良好的效果。     

高压下液氨的pVT关系计算

介绍了一个普遍化的Tait型高压液体的状态方程,并将它应用于高压下液氨的pVT数据的计算。对照2组文献数据(一组温度253～313K,最高压力180MPa;另一组温度310～350K,最高压力110MPa),计算结果表明,平均绝对偏差分别为0.20%和0.94%。本方程适合用来描述液氨的pVT行为。     

嵌入式移动代理的设计与实现

随着移动通信的快速发展,以及手持移动设备的增多,人们已经进入到一个移动计算的时代。移动管理是移动通信中的核心问题。针对IETF的移动IP协议的不足,论文提出了基于嵌入式WindowsCE.net操作系统实现通信设备的移动管理方案。首先简述移动IP协议,并指出其不足之处;然后介绍了嵌入式移动代理的整体框架;最后详细说明了移动代理的实现。该方案主要特点如下:可以最大限度地减小移动管理对移动管理基础设施的依赖;嵌入式移动代理可以为操作系统提供透明的移动服务。     

整体喷嘴环电火花清根加工关键技术

针对整体喷嘴环叶片与缘板间的新型过渡圆角加工问题,采用数控铣削+电火花加工的组合工艺,对整体喷嘴环电火花清根加工技术进行了研究.提出一种电火花清根加工专用电极设计方法,采取周向压缩和径向压缩的策略,定义径向最佳压缩方向并进行求解,使得电极在保留通道过渡圆角区域型面的同时,体积在一定范围内可调.提出一种电极移出轨迹设计方...     

Photodynamic Therapy and Multi-Modality Imaging of Up-Conversion Nanomaterial Doped with AuNPs

Two key concerns exist in contemporary cancer chemotherapy in clinic: limited therapeutic efficiency and substantial side effects in patients. In recent years, researchers have been investigating a revolutionary cancer treatment technique, and photodynamic therapy (PDT) has been proposed by many scholars. A drug for photodynamic cancer treatment was synthesized using the hydrothermal method, which has a high efficiency to release reactive oxygen species (ROS). It may also be utilized as a clear multi-modality bioimaging platform for photoacoustic imaging (PAI) due to its photothermal effect, computed tomography (CT), and magnetic resonance imaging (MRI). When compared to single-modality imaging, multi-modality imaging delivers far more thorough and precise details for cancer diagnosis. Furthermore, Au-doped up-conversion nanoparticles (UCNPs) have an exceptionally high luminous intensity. The Au-doped UCNPs, in particular, are non-toxic to tissues without laser at an 808 nm wavelength, endowing the as-prepared medications with outstanding therapeutic efficacy but exceptionally low side effects. These findings may encourage fresh effective imaging-guided approaches to meet the goal of photodynamic cancer therapy to be created.     

Biofilm and Small Colony Variants—An Update on Staphylococcus aureus Strategies toward Drug Resistance

Recently, the drawbacks arising from the overuse of antibiotics have drawn growing public attention. Among them, drug-resistance (DR) and even multidrug-resistance (MDR) pose significant challenges in clinical practice. As a representative of a DR or MDR pathogen, Staphylococcus aureus can cause diversity of infections related to different organs, and can survive or adapt to the diverse hostile environments by switching into other phenotypes, including biofilm and small colony variants (SCVs), with altered physiologic or metabolic characteristics. In this review, we briefly describe the development of the DR/MDR as well as the classical mechanisms (accumulation of the resistant genes). Moreover, we use multidimensional scaling analysis to evaluate the MDR relevant hotspots in the recent published reports. Furthermore, we mainly focus on the possible non-classical resistance mechanisms triggered by the two important alternative phenotypes of the S. aureus, biofilm and SCVs, which are fundamentally caused by the different global regulation of the S. aureus population, such as the main quorum-sensing (QS) and agr system and its coordinated regulated factors, such as the SarA family proteins and the alternative sigma factor σB (SigB). Both the biofilm and the SCVs are able to escape from the host immune response, and resist the therapeutic effects of antibiotics through the physical or the biological barriers, and become less sensitive to some antibiotics by the dormant state with the limited metabolisms.