Home Monitoring of Estrone-3-Glucuronide (E1-3G) Levels in Two Different Ovarian Stimulation Protocols: A Pilot Study

Background: Studies have shown a strong correlation between the growth of E2 in serum and estrone-3-glucuronide (E1-3G) in urine during ovarian stimulation. Thus, we developed theoretical models for using urinary E1-3G in ovarian stimulation and focused on their experimental verification and analysis. Methods: A prospective, observational pilot study was conducted involving 54 patients who underwent 54 cycles of ovarian stimulation. The goal was to establish the growth rate of urinary E1-3G during the course of stimulation and to determine the daily upper and lower limits of growth rates at which stimulation is appropriate and safe. Controlled ovarian stimulation was performed using two different stimulation protocols—an antagonist protocol in 25 cases and a progestin-primed ovarian stimulation protocol (PPOS) in 29 cases, with fixed doses of gonadotropins. From the second day of stimulation, patients self-measured their daily urine E1-3G levels at home using a portable analyzer. In parallel, a standard ultrasound follow-up protocol accompanied by a determination of E2, LH, and P levels was applied to optimally control stimulation. Results: The average daily growth rates in both groups were about 50%. The daily increase in E1-3G for the antagonist protocol ranged from 14% to 79%, while they were 28% to 79% for the PPOS protocol. Conclusion: This is the first study to analyze the dynamics of E1-3G in two different protocols and to estimate the limits of its increase during the entire course of the stimulation. The results confirm our theoretical model for the viability of using urinary E1-3G for monitoring ovarian stimulation.

A Multi-Interface Remote Monitoring and Control System Architecture Based on Embedded Server

This paper presents a multi-interface embedded server architecture for remote real-time monitoring system and distributed monitoring applications. In the scheme,an embedded microprocessor( LPC3250 from NXP) is chosen as the CPU of the embedded server with a linux operation system( OS) environment. The embedded server provides multiple interfaces for supporting various application scenarios. The whole network is based on local area network and adopts the Browser / Server( B / S) model. The monitoring and control node is as a browser endpoint and the remote node with an embedded server is as a server endpoint. Users can easily acquire various sensors information through writing Internet protocol address of remote node on the computer browser. Compared with client / server( C / S) mode,B / S model needs less maintain and can be applicable to large user group. In addition,a simple network management protocol( SNMP) is used for management of devices in Internet protocol( IP) networks. The results of the demonstration experiment show that the proposed system gives good support to manage the network from different user terminals and allows the users to better interact with the ambient environment.

Comprehensive Overview on Computational Intelligence Techniques for Machinery Condition Monitoring and Fault Diagnosis

Computational intelligence is one of the most powerful data processing tools to solve complex nonlinear problems, and thus plays a significant role in intelligent fault diagnosis and prediction. However, only few com- prehensive reviews have summarized the ongoing efforts of computational intelligence in machinery condition moni- toring and fault diagnosis. The recent research and devel- opment of computational intelligence techniques in fault diagnosis, prediction and optimal sensor placement are reviewed. The advantages and limitations of computational intelligence techniques in practical applications are dis- cussed. The characteristics of different algorithms are compared, and application situations of these methods are summarized. Computational intelligence methods need to be further studied in deep understanding algorithm mech- anism, improving algorithm efficiency and enhancing engineering application. This review may be considered as a useful guidance for researchers in selecting a suit- able method for a specific situation and pointing out potential research directions.

Online Condition Monitoring of Gripper Cylinder in TBM Based on EMD Method

The gripper cylinder that provides braced force for Tunnel Boring Machine （TBM） might fail due to severe vibration when the TBM excavates in the tunnel. Early fault diagnosis of the gripper cylinder is important for the safety and efficiency of the whole tunneling project. In this paper, an online condition monitoring system based on the Empirical Mode Decomposition （EMD） method is estab- lished for fault diagnosis of the gripper cylinder while TBM is working. Firstly, the lumped mass parameter model of the gripper cylinder is established considering the influence of the variable stiffness at the rock interface, the equivalent stiffness of the oil, the seals, and the copper guide sleeve. The dynamic performance of the gripper cylinder is investigated to provide basis for its health condition evaluation. Then, the EMD method is applied to identify the characteristic frequencies of the gripper cylinder for fault diagnosis and a field test is used to verify the accuracy of the EMD method for detection of the characteristic frequencies. Furthermore, the contact stiff- ness at the interface between the barrel and the rod is calculated with Hertz theory and the relationship between the natural frequency and the stiffness varying with the health condition of the cylinder is simulated based on the dynamic model. The simulation shows that the character- istic frequencies decrease with the increasing clearance between the barrel and the rod, thus the defects could be indicated by monitoring the natural frequency. Finally, a health condition management system of the gripper cylin- der based on the vibration signal and the EMD method is established, which could ensure the safety of TBM.

Wireless sensing system for environmental humidity and temperature monitoring

Aiming at the actual demand for monitoring environmental information,a wireless sensing system for temperature and relative humidity(RH)monitoring based on radio frequency(RF)technology and mobile network was designed.This paper introduces the architecture of the system.The system uses AVR micro controller unit(MCU),KYL-1020U RF module and SHT71 to complete real-time temperature and humidity monitoring,and uses SIM900A module to realize remote alarming and monitoring with short message system(SMS)through global system for mobile communication(GSM).Experimental results show that the designed system has good stability of measurement and real-time performance,and it can be used in some small temperature and humidity monitoring occasions.

气相色谱-负化学源质谱联用法测定水产品及食用油中氟乐灵的残留量

建立了一种可用于水产品及食用油中氟乐灵残留量分析的分散型固相萃取-气相色谱-负化学离子源质谱方法。水产品及食用油经乙腈提取，4℃冷藏后，采用分散型固相萃取法净化，由气相色谱-负化学离子源质谱选择离子监测技术进行测定与确证，同位素内标法定量。在1～40μg / L 范围内氟乐灵农药的线性关系良好；方法定量限（LOQ）为0.02μg / kg；对鳗鱼、烤鳗、梭子蟹、小龙虾、猪油和橄榄油等6种复杂基质进行1.0、2.0和3.0μg / kg 等3个水平的添加回收试验，平均回收率均处于80％～100％之间，RSD≤10.3％；无干扰现象出现。该方法可作为水产品及食用油中氟乐灵残留检测的确证方法。

A DUAL-CAMERA VIDEO-TRACKING SYSTEM USING PROJECTION ALGORITHM

This paper presents a video-tracking system composed of two cameras. One camera acts for producing an in-focus image of the object and the other one ensures an extended vision field under monitoring. Such a system scheme can achieve an excellent tracking performance,especially under various unfavorable conditions. A projection algorithm is used for the calculation of the displacement of the moving object. As a result, the computational cost is reduced greatly.In order that the tracking action of the system persists even if the object is sheltered or ns acceleration is larger than a specified threshold, a dedicated tracking algorithm on the basis of the α-β filtering is designed. Experiments show that the algorithm is efficient and the system works very well.

TBM施工条件下隧道净空位移监测

以辽宁大伙房输水工程为背景,介绍TBM施工条件下隧道净空位移监测技术。根据试验,提出一种激光准直TBM隧道净空位移监测方法,它利用开敞式掘进机与隧道周边之间的纵向通视空间,通过对拱顶和两侧边墙三点位应用激光准直法来实现,从而解决TBM施工中现有监测方法难以有效实施净空位移监测的难题。同时,研制出SWL–I型TBM隧道激光位移监测系统,具有满意的量测精度和简便的操作特性,已在该工程Robbins和Wirth两种开敞式掘进机施工环境中得到应用验证,并获得掘进机刀盘尾部拱顶和两侧边墙围岩净空位移的变化特性曲线,实现了TBM施工条件下的净空位移监测。

VENTRICUAL ECTOPY IN PATIENTS WITH HYPERTENSIVE LEFT VENTRICULAR HYPERTOPHY

It has been noticed that patients with essential hypertension and left ventricular hypertrophy on EKG, are highly exposed to a risk of sudden death. LVH in arterial hypertension has repeatedly been documented to trigger or aggravate ventricular ectory. So we investigated the frequency of complex ventricular arrhythmia by means of 24-hour holter monitoring in 120 patients divided into 3 groups, the first group are 40 patients of essential hypetrtension with LVH, the second group are 40 patients with essential hypertension without LVH, and the third group are 40 normotensives without LVH as a control group. The three groups have been matched for age, sex and smoking habit, and the two hypertensive groups matched for blood pressure before and after antihypertensive therapy and duration of hypertension. Thirty hypertensive patients were examined for plasma norepinephrive on the day of holter monitoring, fifteen of those with LVH and the other fifteen without LVH. Nonsustained ventricular tahycardia, had been seen on five (12.5%)of the 40 patients with echocardiographic patten of LVH, and in no one of the 40 hypertensive patients without hyperophy and the 40 normotgnsive control group. Ninteen patients (47. 5%) with LVH had episodes of less than 30 premature ventricular contraction/hour. One patient (2.5%) with LVH has episodes of >30 premature ventricual contraction/hour, higher grade of ventricular ectopic activity such as coupled premature ventricular contractions was seen in two patiens (5%) and multifocal premature ventricular contractions in 11 patiens (27.5%) of the group with LVH. In this study all the data suggest that complex ventricular arrhythmia occur commonly in hypertensive patients with LVH, and map contribute the higher incidence of sudden death in these patients.

Design of RTU based on LPC2294

The remote terminal unit(RTU)is an important part of the power grid dispatching automation in the distribution automation(SCADA).The design of LPC2294 RTU based on ARM7TDMI(-S)chip has been discussed. The hardware and software design of 2294 has been introduced in detail.

科学加勤劳,老树还童效益高

科学加勤劳，老树还童效益高芮城县岭底乡候方园我是１９８０年承包生产队老果园的。果园面积１０亩，全是２５年以上的老果树。由于以前由生产队管理，无科学方法，使果园衰败，部分果树已死，加之品种老化，年年无效益，即使园价极低，还是无人敢承包。１９８０年我承包...

容易产生药害的农药

容易产生药害的农药一、敌百虫：对高粱容易产生药害，一般不给高粱使用，对玉米、瓜类和豆类幼苗也能引起药害，最好不要施用。二、敌敌畏：对高粱最容易产生药害，所以不能给高粱使用。在熏蒸防治大豆食心虫时，施药地块应离高粱２０米以外，特别是下风头更要注意。三、...

使用农药效果差的几种原因

使用农药效果差的几种原因当前，防治农作物病虫害，仍以喷洒农药为主，但在生产实践中，常出现合格农药却使用效果不佳的情况。究其原因，主要有以下几点：一、诊断错误。病当虫治，虫当病治。如果把树早期落叶当作红蜘蛛危害，将番茄青枯病死苗错诊力地下害虫咬根，这样...

蔬菜病虫害防治

蔬菜病虫害防治一、实施植物检疫防止危险的病虫杂草进入未曾发生的地区，彻底消灭不慎传入新区的有害生物。二、加强农业防治①设无病留种田或无病采种株。在种子入库和播种前进行精选。②实行轮作。这对防治病虫有明显的效果，水旱轮作更为理想。③合理安排作物布局。如...

蔬菜地的化学除草

蔬菜地的化学除草一、合理选用除草剂根据种菜种类、栽培方式、耕作方法、杂草种类、发生数量，合理选择除草剂种类１、土壤处理除草剂对白菜类、菠菜、豆类等直播蔬菜和瓜类、茄果类移栽蔬菜，可分别选用乙草胺、丁草胺、杀草丹、氟乐灵、敌草胺、杜耳等扑草净适用于葫萝...

Pheromone-trapping the nun moth, Lymantria monacha （Lepidoptera： Lymantriidae）in Inner Mongolia, China

The nun moth, Lymantria monacha L., is one of the most important defoliators of Eurasian coniferous forests. Outbreaks during 2011-2015 in the natural/planted larch, and larch-birch mixed forests of the Greater Khingan Range in Inner Mongolia, China, caused tremendous timber losses from severe defoliation and tree mortality. A series of trapping experiments were conducted in these outbreak areas to evaluate the efficacy of a synthetic species-specific pheromone lure based on the female pheromone blend of European nun moth populations. Our results clearly show that the nun moth in Inner Mongolia is highly and specifically attracted to this synthetic pheromone, with few gypsy moths （Lymantria dispar） captured. Flight activity monitoring ofL. monacha male moths using pheromone-baited Unitraps at 2 locations during the summer of 2015 indicated that the flight period started in mid-July, peaking in early August at both locations. Based on male moth captures, there was a strong diurnal rhythm of flight activity throughout the entire scotophase, peaking between 22：00 and 24：00. Unitraps and wing traps had significantly and surprisingly higher catches than the gypsy moth traps. Unitraps fastened to tree trunks 2 m above ground caught significantly more male moths than those at the ground level or at 5 m height. Male L. monacha moths can be attracted to pheromone- baited traps in open areas 150-200 m distant from the infested forest edge. Our data should allow improvement on the performance of pheromone-baited traps for monitoring or mass-trapping to combat outbreaks of this pest in northeastern China.

A database of global wetland validation samples for wetland mapping

A database of global wetland validation samples （GWVS） is the foundation for wetland mapping on a global scale. In this work, a database of GWVS was created based on 25 “wetland-related” keyw ord searches of a total of 3,506 full-text documents downloaded from the Web of Science. Eight hundred and three samples from a total of 68 countries and 14i protected areas were recorded by the GWVS, including samples of marine/coastal wetlands, inland wet- lands and human-made wetlands, at ratios of 53 %, 41% and 6 %, respectively. The results exhibit spatial distribution among Terrestrial Ecoregions of the World, the World Database on Protected Areas and the Database of Global Administrative Areas. Within most of the biomes, protected areas and countries examined, the very low concentration of samples requires more attention in the future. The greatest concentration of samples within a single biome is found in the tropical and subtropical moist broadleaf forest biome, accounting for 27 % of the total samples, while no sample is found in the biome of tropical and subtropical coniferous woodland. Greater efforts are expected to be made to record samples in Oceania, Central Europe, Northern Europe, Northern Africa, Central Africa, Central America, the Caribbean, and midwestern South America. Our data show that it is feasible to map global wetlands using Landsat TM/ ETM＋ at 30-m resolution. The continued improvement of the GWVS sharing platform should be reinforced in the future, making a strong contribution to global wetland mapping and monitoring.