简介：【摘 要】多人同步检测血氧仪是由于当今社会正缓慢步入老年化，为了方便大众加深对自己身体状况的认知，以及加深医疗机构对居民健康水平的了解而研制出来的。我们采用了稳定可靠的MAX30102血氧传感器，以HT66F70A芯片作为系统控制核心，并且加入了新型的 HTML_WEB技术，研发了一款适用于各个年龄段的人群，且有着十分广大市场前景的多人心率与血氧同步检测仪。该检测仪能对多人心率与血样进行实时监测，自动化显示各项监测数据。心率与血氧检测参数可以传送到云端形成大数据，能够通过大数据技术分析国民的身体健康状况，对政府做出公共卫生决策提供支持和技术服务。

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简介：以ARMCortex-M3单片机为搜救机器人的控制器，以N沟MOSFET来设计可控制大电流电机的电机驱动器，全面提高了搜救机器人的性能。

简介：中国无晶圆集成电路设计公司方舟科技有限公司通过授权获得了ARM926EJ-S处理器。该授权协议使方舟科技不仅能受益于领先的ARM处理器技术，还将得到业已形成的围绕着ARM架构的生态系统的支持，加速为消费电子市场设计具有更强功能的先进SoC解决方案。

简介：高档的指纹识别系统还要求具有以太网接口和Internet连接能力,用AT75C220和指纹传感器结合可构成高性能的指纹识别系统,　　4 指纹识别系统 　　指纹识别系统一般由指纹传感器、DSP处理器和外围电路组成

简介：用AT75C220和指纹传感器结合可构成高性能的指纹识别系统,高档的指纹识别系统还要求具有以太网接口和Internet连接能力,典型的指纹识别系统是以指纹传感器和DSP处理器为核心构成

简介：给出了一种高分辨率红外触摸屏的设计方案。介绍了整个设计的硬件环境和红外触摸屏的ARM7硬件控制平台，同时给出了基于VC平台的红外触摸屏的鼠标驱动方法。

简介：摘要本文对ARM弧反射法和声磁同步时间差法原理及在电缆故障定位中应用进行了介绍，同时介绍了韶关供电局对两种技术方法的实际应用。

简介：随着ARM的普及和广泛使用，越来越多的用户将会涉及到ARM器件仿真问题。广州致远电子有限公司是国内知名的专业仿真器提供厂商，旗下TKScope仿真器广泛使用在通信、手机、航天、工控、军工、汽车、家电等高要求领域，支持ARM7、ARM9、ARM11、Cortex—M0、Cortex—M1、Cortex—M3、XSeale等多种ARM内核；与当前全部主流IDE环境无缝嵌接，如TKStudio、Keil、ADS、IAR、RealView、GDB等。

简介：摘要触摸屏是现代数字化产品的主流技术之一，触摸屏嵌入式系统丰富了人机交互界面，提升了设备的总体性能，也对支持技术提出了高要求。本文基于ARM单片机作为重点，对其触摸屏嵌入式系统设计思路、方法进行分析，给出控制部分设计、触摸部分设计、显示与存储设计等内容，为后续产品研发工作提供参考。

简介：2008年6月12日,杭州国芯科技有限公司和ARM公司共同宣布:杭州国芯已经通过授权获得ARM926EJ-STM处理器,将用于其为家庭娱乐和多媒体应用设计的下一代数字电视和机顶盒芯片。

简介：摘 要：近年来，可编程序控制器（PLC）在我国得到了广泛应用，并逐渐发展成了现代工业中的骨干设备。随着 PLC的发展，国内可编程控制器的市场占有率还不到5%，与国际先进 PLC相比，其产品质量和性能都有很大的差距。在此基础上，提出了一种基于单片机的微型可编程序控制器的实现方法，并对其进行了详细的介绍，并对其实现方法进行了探讨。

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简介：摘要现阶段，为了将馈线自动化水平进行有效提升，我们设计了一种新型馈线自动化终端，它以ARM9处理器为基础且实现了诸多功能，包括遥控、遥调、遥信以及遥测等等。测试结果显示该装置与现代配网自动化需求相符，且具备可靠且稳定的无线通信、较高的精度以及较快的数据采集等优点。

简介：AbstractBackground:C-arm-based flat-panel detector cone-beam computed tomography (CBCT) venography has never been used in the management of iliac vein compression syndrome (IVCS). This study aimed to determine the technical feasibility and safety of CBCT venography in the diagnosis of IVCS compared with conventional venography (CV).Methods:Twenty patients with clinical manifestations of lower extremity venous insufficiency were prospectively enrolled between May 2018 and December 2018. Each patient underwent both CV and CBCT venography. The feasibility and safety of CBCT venography were assessed by technical success rate and complication rate. The relationships between the clinical indexes and the results of CBCT venography and CV were analyzed with correlation analysis. The consistency of the diagnosis of IVCS using each modality was analyzed by the kappa test.Results:The technical success rate was 100% for CBCT venography and for CV, without any complications. Compared with CV, CBCT venography was able to show more details of adjacent tissues which might be helpful for making etiological diagnosis. The stenosis rate under CBCT venography had excellent consistency with that under CV (kappa= 0.78, Chi-square test). The stenosis rate under CBCT venography was positively correlated with the presence of collateral veins (odds ratio 1.12, 95% confidence interval: [1.00, 1.26], P= 0.049), while the stenosis rate under CV was not. Unexpectedly, only one patient had a venous pressure gradient of more than 2 mmHg (1 mmHg = 0.133 kPa).Conclusions:For the diagnosis of IVCS, C-arm-based CBCT venography was technically feasible, with good safety. The presence of collateral veins on CBCT was clinically significant. A C-arm fluoroscopy-based technique that combines CV and CBCT might be a promising protocol for the management of IVCS during a single session.

简介：目的探讨术中O-arm导航辅助下后路半椎体切除治疗半椎体所致先天性脊柱侧后凸畸形的应用价值。方法回顾性分析河北医科大学第三医院脊柱外科2014年1月—2叭5年3月收治的14例半椎体所致先天性脊柱侧后凸畸形患者的临床资料，其中男5例、女9例，年龄9～15岁。患者均为单发性完全分节半椎体畸形，其中半椎体位于T91例、T102例、T115例、T123例、L12例、L21例。患者术前均拍摄站立位全脊柱正、侧位X线片，测量冠状面及矢状面Cobb角。在O—arm导航辅助下植入椎弓根螺钉，术中O-grill导航3D重建半椎体畸形，明确半椎体切除范围，彻底切除半椎体畸形。术中经O-arm扫描、术后经CT扫描观察螺钉位置；分析手术前后Cobb角，评价脊柱侧凸、后凸矫正率。结果14例患者共置入椎弓根螺钉120枚，其中11例置入4对椎弓根螺钉，2例置入5对，1例置入6对；经术中O-arm扫描确认位置良好，术后CT扫描评估螺钉置入准确性：0级118枚（98．3％），1级2枚（1．7％）。本组病例手术时间平均为（195．4±17．4）min，术中出血量平均为（611．9±173．0）mL，术后随访3～15个月，平均9．6个月。术前侧凸Cobb角为62．8°±15．8°，术后为10．9°±5．3°，矫正率为83．34％±6．08％，末次随访时为12．1°±4．8°；术前后凸Cobb角为57．5°±15．5°，术后为17．0°±6．6°，矫正率为70．66％±6．79％，末次随访时为17．9°±7．0°。随访期间未见明显角度丢失。术后与末次随访时侧凸、后凸角度与术前比较，差异均有统计学意义（P值均〈0．01）；而术后与末次随访时比较，差异均无统计学意义（P值均〉0．05）。本组病例术后无神经并发症，未发生螺钉松动、脱出、折断等。结论在后路半椎体切除治疗先天性脊柱侧后凸畸形的手术中，O-arm导航能够指导椎弓根螺钉的准确置入和半椎体的精�

简介：AbstractBackground:Bendamustine was approved in China on May 26th, 2019 by the National Medical Product Administration for the treatment of indolent B-cell non-Hodgkin lymphoma (NHL). The current study was the registration trial and the first reported evaluation of the efficacy, safety, and pharmacokinetics of bendamustine in Chinese adult patients with indolent B-cell NHL following relapse after chemotherapy and rituximab treatment.Methods:This was a prospective, multicenter, open-label, single-arm, phase 3 study (NCT01596621; C18083/3076) with a 2-year follow-up period. Eligible patients received bendamustine hydrochloride 120 mg/m2 infused intravenously on days 1 and 2 of each 21-day treatment cycle for at least six planned cycles (and up to eight cycles). The primary endpoint was the overall response rate (ORR); and secondary endpoints were duration of response (DoR), progression-free survival (PFS), safety, and pharmacokinetics. Patients were classified according to their best overall response after initiation of therapy. Proportions of patients in each response category (complete response [CR], partial response [PR], stable disease, or progressive disease) were summarized along with a two-sided binomial exact 95% confidence intervals (CIs) for the ORR.Results:A total of 102 patients were enrolled from 20 centers between August 6th, 2012, and June 18th, 2015. At the time of the primary analysis, the ORR was 73% (95% CI: 63%-81%) per Independent Review Committee (IRC) including 19% CR and 54% PR. With the follow-up period, the median DoR was 16.2 months by IRC and 13.4 months by investigator assessment; the median PFS was 18.6 months and 15.3 months, respectively. The most common non-hematologic adverse events (AEs) were gastrointestinal toxicity, pyrexia, and rash. Grade 3/4 neutropenia was reported in 76% of patients. Serious AEs were reported in 29 patients and five patients died during the study. Pharmacokinetic analysis indicated that the characteristics of bendamustine and its metabolites M3 and M4 were generally consistent with those reported for other ethnicities.Conclusion:Bendamustine is an active and effective therapy in Chinese patients with relapsed, indolent B-cell NHL, with a comparable risk/benefit relationship to that reported in North American patients.Clinical trial registration:ClinicalTrials.gov, No. NCT01596621; https://clinicaltrials.gov/ct2/show/NCT01596621

简介：树突的微观结构规模例如主要、第二等的树突手臂间距，在interdendritic区域以内控制分离侧面和第二等的阶段的形成，它决定团结的结构的性质。主要阶段的主要、第二等的树突手臂间距上的调查在这研究在方向性地团结的Pb-26wt%Bi低亚硫酸钠包晶体的合金期间被执行，并且系统的研究与不同直径用圆柱的样品被进行(=1.8和7.0公里)武装间距以便在主要、第二等的树突上分析样品直径的效果。在这个工作，生长速度上的树突手臂间距的依赖被建立。另外，有关主要、第二等的树突手臂间距的试验性的数据与从文学的主要预兆的树枝状的模型相比。在1.8-mm-diameter样品和7.0-mm-diameter样品的树突手臂间距的试验性的结果之间的比较也被进行。

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