Parsimonious Model for Blood Glucose Level Monitoring in Type 2 Diabetes patients

To establish the parsimonious model for blood glucose monitoring in patients with type 2 diabetes receiving oral hypoglycemic agent treatment. One hundred and fifty-nine adult Chinese type 2 diabetes patients were randomized to receive rapid-acting or sustained-release gliclazide therapy for 12 weeks.

The Design Liquid-level Monitoring System of Adopting the Ultrasonic Sensing Technology

Utilizing the technology of Ultrasonic wave,relevant test arithmetic and the PC to carry on monitoring,controlling and cen-tralized management of the liquid-level in the liquid container. It can prevent from keeping in touch with the examined liquid,not only has increased the continuous working time of the system greatly,simplifying maintenance of the sensor conveniently,can also realize overhauling in producing and boost the productivity and management level. The working principle,hardware structure of the instrument and the design method are presented,and the selection of sensor and MCU is discussed in detail in this paper. MCU are used to control the emission and receiving. Then the liquid-level are calculated,which makes the design more intelligent.

Dispersion-Induced Waveform Distortion Detection in 42.7 Gbps CS-RZ Signals by Optical Time Domain Level Monitoring

We propose a technique for chromatic dispersion monitoring based on optical time domain level monitoring. Experimental and simulation results show that the technique is effective for the monitoring of dispersion in 42.7-Gbps CS-RZ signals for dynamic dispersion compensation.

Adaptive Runtime Monitoring of Service Level Agreement Violations in Cloud Computing

The cloud service level agreement(SLA)manage the relationship between service providers and consumers in cloud computing.SLA is an integral and critical part of modern era IT vendors and communication contracts.Due to low cost and flexibility more and more consumers delegate their tasks to cloud providers,the SLA emerges as a key aspect between the consumers and providers.Continuous monitoring of Quality of Service(QoS)attributes is required to implement SLAs because of the complex nature of cloud communication.Many other factors,such as user reliability,satisfaction,and penalty on violations are also taken into account.Currently,there is no such policy of cloud SLA monitoring to minimize SLA violations.In this work,we have proposed a cloud SLA monitoring policy by dividing a monitoring session into two parts,for critical and non-critical parameters.The critical and non-critical parameters will be decided on the interest of the consumer during SLA negotiation.This will help to shape a new comprehensive SLA based Proactive Resource Allocation Approach(RPAA)which will monitor SLA at runtime,analyze the SLA parameters and try to find the possibility of SLA violations.We also have implemented an adaptive system for allocating cloud IT resources based on SLA violations and detection.We have defined two main components of SLA-PRAA i.e.,(a)Handler and(b)Accounting and Billing Manager.We have also described the function of both components through algorithms.The experimental results validate the performance of our proposed method in comparison with state-of-the-art cloud SLA policies.

Design of online control and monitoring software for the CPPF system in the CMS Level-1 trigger upgrade

The concentration preprocessing and fan-out(CPPF) system is one of the electronic subsystems of the upgraded Compact Muon Solenoid(CMS) Level-1 trigger system. It includes, in hardware, eight specially designed CPPF cards, one CMS card called AMC13, one commercial Micro-TCA Carrier HUB(MCH) card, and a MicroTCA shelf. Powerful online software is needed for the system, including providing reliable configuration and monitoring for the hardware, and a graphical interface for executing all actions and publishing monitoring messages.Further, to control and monitor the large amount of homogeneous hardware, the SoftWare Automating conTrol of Common Hardware(SWATCH) concept was proposed and developed. The SWATCH provides a generic structure and is flexible for customization. The structure includes a hardware access library based on the IPbus protocol, which assumes a virtual 32-bit address/32-bit data bus and builds a simple hardware access layer. Furthermore, the structure provides a graphical user interface, which is based on modern web technology and is accessible by web page. The CPPF controlling and monitoring online software was also customized from a common SWATCH cell, and provides afinite state machine(FSM) for configuring the entire CPPF hardware, and five monitoring objects for periodically collecting monitoring data from five main functional modules in the CPPF hardware. This paper introduces the details of the CPPF SWATCH cell development.

GF-3 InSAR Achieves Sub-centimeter Level Surface Subsidence Monitoring

The GF-3 satellite was launched on August 10,2016 from the Taiyuan Satellite Launch Center and was put into operation at the end of January,2017.It has acquired nearly 100 thousand C-band multi-polarization ocean and land SAR images,providing data support for many departments covering resource survey,typhoon early warning,disaster assessment,crop yield estimation and polar investigation.Recently,the team led by ZHANG Qingjun from

Thoughts on Integrated Monitoring of Ecological Environment at Provincial Level

The Law of Soil and Water Conservation entitles the administrations of water resources at various level to monitor ecological environment and to proclaim status of soil erosion periodically.Monitoring units of soil and water conservation approved by local governments are obliged to undertake this work.How to develop a monitoring program needs an overall and long-term concept.Particularity and objectives of ecological environment monitoring was discussed. Monitoring at provincial level may be divided into two levels:province-wide and at project level. Those indicators meaningful,sensitive to any disturbances,and simple to measure may be selected to test status of ecosystem stability and health.It makes sense to have an integrated sampling design,to set up permanent observation plots and to collect data, so that to have a relative timely,accurate understanding of ecosystems in the province.A program regarding sampling design,field methods, data analysis,documentation and implementation was detailed.

Real-time State Monitoring During Switching Mode Transitions in High Power Three-level Inverters

大功率多电平逆变器近年来在实际工业生产中得到越来越广泛的应用。多电平逆变器由于结构复杂,采用元器件较多,因此在设计和实验中,实现各个工作状态下运行参数的同步监测和分析较为困难。本文针对大功率三电平逆变器,实现开关动态特性的在线测试,在此基础上,进一步研究三电平逆变器在开关状态变化时理论与实际负载运行工况下电路拓扑的转换变化规律。通过全电路电气参数和元器件状态的实时监测,发现在三电平逆变器非正常运行状态下开关转换时额外电应力,同时,深入研究在实际工况运行条件非正常状态下该额外电应力出现的机理和原因,为三电平逆变器的故障诊断提供了参考,对于设计高可靠性的多电平逆变器系统有一定的理论和现实意义。

水库水位升降对堆石坝坝体变形行为的影响

建国后大量兴建的堆石坝历经数十年的使用及自然损耗,坝体安全风险逐渐升高。为了有效掌握坝体在拦蓄水体的作用下的变形行为,指导既有坝体的维护。该研究以华南某地水库的既有堆石坝为对象,对坝体典型部位开展沉降位移监控、水平位移监测及水位监测等。研究表明:水坝下游一侧的坝体沉降位移与水位呈负相关性,水平位移与水位呈正相关性;坝体的沉降和水平位移特征为,坝体中间的变形较两侧的变形大,坝顶的变形最大;坝肩地质条件的差异会导致坝体不同部位产生水平位移差,威胁坝体安全。该研究成果对治理和维护既有堆石坝体具有重要的参考和指导意义。

Radiation Dose Survey of Pediatric Chest Computed Tomography Examinations: A Local Diagnostic Reference Levels Approach to Patient Safety

Objectives: The aim of this work was to initially establish both age and weight driven pediatric diagnostic reference levels (DRLs) for chest computed tomography (CT) examinations performed at tertiary care medical institution. Another aim was to compare the presented data with internationally published ones. This initial data shall serve as basis for establishing a national DRLs values for pediatric diagnostic CT examinations. Methods: Dosimetric indexes were collected for the chest examination for 93 patients during the past 2 years in a tertiary care medical city. Results: The results are within and below the international reported levels for chest CT in several countries. Conclusion: Continuous monitoring of the radiation doses received by the patients in computed tomography is continuous and ongoing process in order to ensure compliance and to optimize clinical imaging protocols. More extensive data acquisition and analysis are required to allow better understanding of the contributing factors leading to less patient radiation dose while preserving the clinical image quality. .

Method of multi-level recursive and application to nonlinear dynamic deformation forecasting

The time-dependence bilinear mixed-regression deformation model and time-dependence bilinear dynamic system deformation model are established for deformation observation series. According to the multi- level recursive method, the time-dependence parameters are first traced and predicted, and then the dynamic system states. Due to the method considering time-dependence of deformation and having stronger adaptability to time-dependence system, it can improve forecast’s precision. It is very effective for data processing of nonlinear dynamic deformation monitoring to make multi-step forecasting.

Co-seismic changes of well water level and volume strain meter in capital area and its vicinity,due to the Nov.14,2001 Ms8.1 Kunlun Mountain earthquake,China

The Kunlunshan Mountain Ms8.1 earthquake, occurred in Nov.14, 2001, is the first event with magnitude more than 8 in the China earthquake monitoring history, specifically at the beginning of digital techniques in precursor monitoring networks. Any investigation of recorded data on this earthquake is very important for testing the operation of the digital monitoring networks and understanding the preparation, occurrence, and adjustment of stress/strain of strong continental earthquakes. In this paper we investigated the coseismic response changes of well water level of groundwater and volume strain meter of bore hole in digital earthquake monitoring network of Capital area and its vicinity, due to the Nov.14, 2001 Ms8.1 Kunlun Mountain earthquake. The responding time, shapes or manners, amplitudes, and lasting time of well water level and strain-meters to seismic wave are studied in comparison. Then we discussed the possibility that the response changes of groundwater to strong distant earthquakes can be understood as one kind of observing evidence of stress/strain changes induced by distant earthquake.

基于静力水准的采空区地表变形监测及误差分析

目前,采空区上方的地表沉降变形监测主要采用人工水准仪测量,该方法效率低、成本高、周期长,且无法实现自动化实时监测。为解决上述问题,引入静力水准自动化监测技术,在分析静力水准自动化监测工作原理及监测系统构成的基础上,对其可靠性、误差来源及消除方法进行了深入探讨,最后结合条带采空区上方地表监测实例从监测方案、测点布置、数据分析等多个角度进行了系统研究。研究结果表明:该技术能够满足条带采空区上方地表沉降变形自动化监测的要求,可为相关监测工作提供技术支撑。

基于D-InSAR技术的矿区地表沉降规律分析与趋势预测

井工煤矿开采会导致地表沉陷,损坏地表建筑物、影响生态环境,甚至诱发滑坡、泥石流等灾害,对地表沉陷发展规律的准确分析和预测具有重要的现实意义。以东滩煤矿6306工作面为试验对象,选取覆盖该区域的19景Sentinel-1A影像数据,开展了基于D-InSAR技术的地表沉降规律分析与预测研究。基于“二轨法”获取了试验区域的时间序列数据,构建了SAR影像数据分析方法与处理流程;结合矿区实测数据和Sentinal-1A影像数据,验证分析了6306工作面对应的地表沉降规律;构建了基于LSTM算法的地表沉降预测模型,对比分析了LSTM、SVR和灰色GM(1,1)3种方法预测的准确性和有效性。结果表明:D-InSAR技术的监测精度高(最大误差为18.3 mm,平均差值为5.4 mm),区域广,可有效获取地表形变的时空演化规律;此外,相较于传统SVR、灰色GM(1,1)预测模型,所提出的LSTM模型平均误差约为2.98 mm,具有更高精度。

基于深度学习的双目视觉水位监测方法

利用双目相机采集3D点云数据,通过多次连续测量不断增补水面空间数据;利用基于Transformer架构的深度学习模型过滤弱化噪点,强化特征纹理,通过对点云数据进行加权处理得到监测水位,该方法无需安装标尺和现场标定,不需额外结构光发射装置,减少了场景限制,降低了功耗和成本。试验结果表明,该方法可以消除水面波纹和漂浮物等的干扰,水位监测最大误差为0.8 cm,系统不确定度、随机不确定度、综合不确定度指标均小于1 cm,可满足智慧水利感知网部署场景复杂的要求。

Radioactivity level of the ambient environment of Anren bone-coal power station

The radioactivity level of the ambient environment of Anren Bone-coal Power Station (BCPS) was investigated systematically. The γ radiation dose rate level in the environment, the content of 238U and 226Ra in the ambient soil and the farmland in the direction of downwind, the concentrations of 238U. 232Th. 226Ra 40K and 222Rn as well as α potential energy in air, and the concentrations of natural U and Th in effluent are all higher than the corresponding values of the reference site. The additional annual effective dose equivalent to the residents living in the houses made of bone-coal cinder brick is 2.7 mSv.

GNSS拟合高程代替水准测量的可行性分析:以黄河上游水电基地区域为例

GNSS拟合高程代替水准测量有重要的现实意义,有必要对其进行可行性分析。黄河上游水电基地是中国在黄河上游地区开发的重要水利工程群,其安全监测具有至关重要的作用。因此,本文基于黄河上游水电基地GNSS自动监测网开展实验,从GNSS高程拟合方法、GNSS数据处理策略和GNSS高程方向定位结果等方面详细论证。结果表明,GNSS拟合高程具有替代三等水准的可行性。

Investigation of monitoring system for high-speed railway subgrade frost heave

This paper presents methods for monitoring frost heave, device requirements, testing principals, and data analysis re- quirements, such as manual leveling observation, automatic monitoring （frost heave, frost depth, and moisture）, track dynamic detection, and track status detection. We focused on the requirements of subgrade frost heave monitoring for high speed railways, and the relationship of different monitoring methods during different phases of the railway. The com- prehensive monitoring system of high speed railway subgrade frost heave provided the technical support for dynamic design during construction and safe operation of the rail system.

压差式光纤光栅静力水准仪的设计与研究

为实现对建筑结构不均匀沉降的有效监测,基于光纤光栅与连通器的基本原理,该文设计了一种压差式光纤光栅静力水准仪,并对该水准仪进行了理论推导、标定试验及静态特性分析。试验结果表明,该水准仪灵敏度为6.5 pm/mm,线性拟合度R^(2)为0.999,非线性误差为1.48%,迟滞性误差为0.74%,重复性误差为5.72%,总精度为5.95%。为增大该水准仪灵敏度特性,对原有的波纹膜片改进与分析,结果表明,改进后的水准仪灵敏度为11.87 pm/mm,较改进前提升了约1.8倍。该结构形式的水准仪可对建筑物的沉降进行有效监测,为建筑物结构健康监测提供有效的技术支持。

基于北斗系统的地表与地下一体式沉降监测新方法

为实现对地质灾害易发区地表沉降与地下沉降的同步、实时、自动监测,研发了基于北斗系统的地质体地表与地下一体化沉降监测新方法。该方法融合了北斗系统、静力水准仪、分层沉降标等沉降监测技术,监测原理如下:在稳定区域设置北斗基准点,在监测区域设置工作基点与监测点;工作基点处的北斗卫星接收机与静力水准仪安装至同一桩上,北斗卫星接收机观测工作基点处静力水准仪的绝对沉降;监测点处的静力水准仪与分层沉降标同轴连接,分层沉降标将深层沉降引至地面由静力水准仪观测;北斗系统与静力水准系统同步采集数据,数据经时间同步后分别得到工作基点和监测点的绝对沉降量。该新方法成功解决了大面积沉降监测中面临的非稳定工作基点校测问题,实现了对地质体地表与地下沉降的远程和实时监测。