辽宁省水库防汛视频会商预监录制系统的设计与实现

传统视频会商系统中将不同信号源以列表形式呈现在控制界面,每路信号源仅以文字符号代替,很难预先并且实时判定信号源内容,只有在大屏显示后才能明确信息。如果在重要视频会商期间信号源标识有误或显示内容不当,将错误信息显示在大屏后将会造成恶劣影响。为确保视频会商系统安全稳定运行直接的方式就是在显示大屏之前看到信号源的实时画面。视频会商预监系统使用带有预监功能混合矩阵处理,可以在操作显示器上实时预览系统中所有前端输入信号画面,选择正确内容视频信号快速、准确显示,提高视频会商系统的安全稳定性。

摄像机操作控制面板预监功能的实现

本文就JOYSTICK的实现原理和具体实现方式展开了详细描述,并对比了几种实现方式的特点。JOYSTICK功能简单好用,在实际应用中可选择符合系统设计的方案,提供快捷高效的全屏预监体验。

山东省1989～1993年预防性卫生监督工作动态分析

本文分析比较了山东省1989～1993年预防性卫生监督工作量统计资料,得出了山东省预监工作由发展到萎缩的结论,提出了改善预监工作的意见和建议,为今后开展预监工作提供依据。

Mechanism,prevention,and control of mining-induced dynamic disasters in underground metal mines in China:Challenges and solutions

Metal mineral resources play an indispensable role in the development of the national economy.Dynamic disasters in underground metal mines seriously threaten mining safety,which are major scientific and technological problems to be solved urgently.In this article,the occurrence status and grand challenges of some typical dynamic disasters involving roof falling,spalling,collapse,large deformation,rockburst,surface subsidence,and water inrush in metal mines in China are systematically presented,the characteristics of mining-induced dynamic disasters are analyzed,the examples of dynamic disasters occurring in some metal mines in China are summarized,the occurrence mechanism,monitoring and early warning methods,and prevention and control techniques of these disasters are highlighted,and some new opinions,suggestions,and solutions are proposed simultaneously.Moreover,some shortcomings in current disaster research are pointed out,and the direction of efforts to improve the prevention and control level of dynamic disasters in China’s metal mines in the future is prospected.The integration of forward-looking key innovative theories and technologies in the abovementioned aspects will greatly enhance the cognitive level of disaster prevention and mitigation in China’s metal mining industry and achieve a significant shift from passive disaster relief to active disaster prevention.

The Research Status and Enlightenment of Foreign Foodborne Disease Prevention and Control

Foodborne disease is a worldwide il ness and over 1 bil ion people get diseased every year. In China, thousands of foodborne diseases occur every year. It is proved that prevention is the most crucial for control ing foodborne disease. In the research, food safety monitoring system, laws and early warning system in the US and EU were introduced to explore the successful experience and monitoring or control mode suitable for China.

Comparison of the Evolution of Genetically Modified Food Safety Policies between the United States and the European Union

With the research on and development of Genetically Modified Food （GMF）, people＇s attitude toward GMF may fall into two divergent categories, typical- ly represented by the United States（US） and the European Union（EU）, respectively. The former follows a ＂sound science principle＂ and firmly objects to the precautionary principle, namely a permissive policy of positive support of and voluntary labelling on GMF; while the latter adopts a cautiously precautionary principle, requiring mandatory labelling and traceability. From the standpoint of regulatory principles, together with corresponding supervisory measures and relevant provisions, this paper compared the execution of directives and provisions on GMF from the initial policies enacted by the US and EU to current situation combined with the track and analysis of latest polic ies issued.

Short-term warning and integrity monitoring algorithm for coal mine shaft safety

A new short-term warning and integrity monitoring algorithm was proposed for coal mine shaft safety. The Kalman filter (KF) model was used to extract real global positioning system (GPS) kinematic deformation information. The short-term warning model was built by using the two-side cumulative sum (CUSUM) test, which further improves the warning system reliability. Availability (the minimum warning deformation, MWD), false alarm rate (the average run length, ARL), missed rate (the warning delay, WD) and the relationships among them were analyzed and the method choosing warning parameters is given. A test of a deformation simulation platform shows that the warning algorithm can be effectively used for steep deformation warning. A field experiment of the Malan mine shaft in Shanxi coal area illustrates that the proposed algorithm can detect small dynamic changes and the corresponding occurring time. At given warning thresholds (MWD is 15 mm and ARL is 1000),the detected deformations of two consecutive days’ deformation sequences with the algorithm occur at the 705th epoch (705 s) and the 517th epoch (517 s), respectively.

新一代集中控制管理系统

新一代集中控制管理系统是利用物联传感、网络和计算机编程技术,旨在对多个会议室系统进行批量管理、控制和监视的管理平台。

Research on Resources and Environmental Carrying Capacity

This paper, in the context of resources and environmental carrying capaci-ty, systematic reviewed resources and environmental carrying capacity in monitoring, evaluation and early warning, and then putted forward the development direction for promoting the sustainable development of China’s social and economic environment.

Online Predictive Monitoring and Prediction Model for a Periodic Process Through Multiway Non-Gaussian Modeling

A new on-line predictive monitoring and prediction model for periodic biological processes is proposed using the multiway non-Gaussian modeling. The basic idea of this approach is to use multiway non-Gaussian modeling to extract some dominant key components from daily normal operation data in a periodic process, and subsequently combining these components with predictive statistical process monitoring techniques. The proposed predictive monitoring method has been applied to fault detection and diagnosis in the biological wastewater-treatment process, which is based on strong diurnal characteristics. The results show the power and advantages of the proposed predictive monitoring of a continuous process using the multiway predictive monitoring concept, which is thus able to give very useful conceptual results for a daily monitoring process and also enables a more rapid detection of the process fault than other traditional monitoring methods.

FEASIBLE STUDY ON THE INTEGRATION SYSTEM FOR THE SPACE MONITORING OF MAJOR EARTHQUAKES AND VOLCANOES IN TERRESTRIAL LAND

With the rapid development of space technology,earth observation tech nology and sky observatory technolo-gy,they have played a more and more im portant part in monitoring and predi cting of earthquakes and volcanoes i n the terres-trial land.In recent years,the rela ted agencies have done the experimen ts and researches on monitoring and p redicting of earthquakes and volcanoes in the forewarning period by means of many appr oaches,such as satellite thermal in frared re-mote sensing(TIRS),Global Positioning System(GPS),differential interferometric syn thesis aperture radar(D-INSAR),astronomical time-latitude residual anomaly,and Geographic Information Systems (GIS),etc.A quite large number of re-search foundation has been built in t he fundamental theories and applica tion methods.The experiments and re searches have shown that these technology is e fficient methods for high frequency crust movement.If the existed separate scientific forces and results are possibly asse mbled together to form a more complete integration monitoring system wit h the combina-tion of space,sky observation,grou nd,deep geology and macro anomaly,i t will come into a new stage of monitoring and predicting of earthquakes and volca nic eruptions.

Assays for predicting and monitoring responses to lung cancer immunotherapy

Immunotherapy has become a key strategy for cancer treatment, and two immune checkpoints, namely, programmed cell death 1 （PD-1） and its ligand （PD-L1）, have recently emerged as important targets. The interaction blockade of PD-1 and PD-L1 demonstrated promising activity and antitumor efficacy in early phase clinical trials for advanced solid tumors such as non-small cell lung cancer （NSCLC）. Many cell types in multiple tissues express PD-L1 as well as several tumor types, thereby suggesting that the ligand may play important roles in inhibiting immune responses throughout the body. Therefore, PD-L1 is a critical immunomodulating component within the lung microenvironment, but the correlation between PD-L1 expression and prognosis is controversial. More evidence is required to support the use of PD-L1 as a potential predictive biomarker. Clinical trials have measured PD-L1 in tumor tissues by immunohistochemistry （IHC） with different antibodies, but the assessment of PD-L1 is not yet standardized. Some commercial antibodies lack specificity and their reproducibility has not been fully evaluated. Further studies are required to clarify the optimal IHC assay as well as to predict and monitor the immune responses of the PD-I/PD-L1 pathway.

Implementation of remote monitoring system for prediction of tool wear and failure using ART2

Remote monitoring of tools for prediction of tool wear in cutting processes was considered, and a method of implementation of a remote-monitoring system previously developed was proposed. Sensor signals were received and tool wear was predicted in the local system using an ART2 algorithm, while the monitoring result was transferred to the remote system via intemet. The monitoring system was installed at an on-site machine tool for monitoring three kinds of tools cutting titanium alloys, and the tool wear was evaluated on the basis of vigilances, similarities between vibration signals received and the normal patterns previously trained. A number of experiments were carried out to evaluate the performance of the proposed system, and the results show that the wears of finishing-cut tools are successfully detected when the moving average vigilance becomes lower than the critical vigilance, thus the appropriate tool replacement time is notified before the breakage.

Effects of High-temperature Damage on Rice Growth and Its Countermeasures

This study introduced the effects of high-temperature damage on rice and reviewed the damage mechanism, heat damage index and risk assessment, forewarning and monitoring. On the basis of extensive studies, this paper put forward the viewpoints of ascertaining the fundamental mechanism of high temperature damage to rice at the molecular level, establishing a comprehensive heat damage index taking variety, growth stage and other meteorological factors into consideration, selecting appropriate sowing time, choosing heat-resistant varieties and improving the prevention system. All of these are aimed at providing a solid foundation for coping avoiding the harms from heat damage and improving the coping method.

Developments and prospects of microseismic monitoring technology in underground metal mines in China

Microseismic monitoring technology has become an important technique to assess stability of rock mass in metal mines.Due to the special characteristics of underground metal mines in China,including the high tectonic stress,irregular shape and existence of ore body,and complex mining methods,the application of microseismic technology is more diverse in China compared to other countries,and is more challenging than in other underground structures such as tunnels,hydropower stations and coal mines.Apart from assessing rock mass stability and ground pressure hazards induced by mining process,blasting,water inrush and large scale goaf,microseismic technology is also used to monitor illegal mining,and track personnel location during rescue work.Moreover,microseismic data have been used to optimize mining parameters in some metal mines.The technology is increasingly used to investigate cracking mechanism in the design of rock mass supports.In this paper,the application,research development and related achievements of microseismic technology in underground metal mines in China are summarized.By considering underground mines from the perspective of informatization,automation and intelligentization,future studies should focus on intelligent microseismic data processing method,e.g.,signal identification of microseismic and precise location algorithm,and on the research and development of microseismic equipment.In addition,integrated monitoring and collaborative analysis for rock mass response caused by mining disturbance will have good prospects for future development.

A Real-time Monitoring and Early Warning System for Landslides in Southwest China

Landslides not only cause property losses,but also kill and injure large numbers of people every year in the mountainous areas. These losses and casualties may be avoided to some extent by early warning systems for landslides. In this paper, a realtime monitoring network and a computer-aided automatic early warning system(EWS) are presented with details of their design and an example of application in the Longjingwan landslide, Kaiyang County, Guizhou Province. Then, according to principle simple method of landslide prediction, the setting of alarm levels and the design of appropriate counter-measures are presented. A four-level early warning system(Zero, Outlook, Attention and Warning) has been adopted, and the velocity threshold was selected as the main warning threshold for the landslide occurrence, but expert judgment is included in the EWS to avoid false alarms. A case study shows the applicability and reliability for landslide risk management, and recommendations are presented for other similar projects.

Highlights for α-fetoprotein in determining prognosis and treatment monitoring for hepatocellular carcinoma

AIM:To explore the prognostic value in the monitoring of treatment efficacy of serial α-fetoprotein(AFP) in hepatocellular carcinoma(HCC) patients.METHODS:We searched MEDLINE,EMBASE and COCHRANE LIBRARY through April 21,2012,to find qualifying articles.Our overall search strategy included terms for HCC,AFP,treatment response,and prognosis.Literature was limited to English-language,human studies.Studies reporting cumulative survival rates were summa-rized qualitatively.For the prognostic meta-analysis,we undertook a series of meta-analyses that summarised the Cox proportional hazard ratios(HRs) by assuming a random effects model.With regards to the correlation of AFP change with radiologic response,the categorical dichotomous variables were assessed using Poisson relative risks(RRs),which were incorporated into the random effects model meta-analysis of accuracy prediction.Between-study heterogeneity was estimated by use of the I2 statistic.Publication bias was evaluated using the Begg funnel plot and Egger plot.Sensitivity analyses were conducted first by separating systemic treatment estimates from locoregional therapy estimates,evaluating different AFP response cut-off point effects,and exploring the impact of different study sizes.RESULTS:Of 142 titles identified in our original search,11 articles(12 clinical studies) met our criteria.Six studies investigated outcome in a total of 464 cases who underwent systemic treatment,and six studies investigated outcome in a total of 510 patients who received locoregional therapy.A random-effects model metaanalysis showed that AFP response was associated with an mortality HR of 0.55(95%CI,0.47-0.65) across HCC in overall survival(OS) and 0.50(95%CI,0.38-0.65) in progression-free survival.Restricting analysis to the six eligible analyses of systemic treatment,the pooled HRs were 0.64(95%CI,0.53-0.77) for OS.Limiting analysis to the six analyses of locoregional therapy,the pooled HRs for OS was 0.39(95%CI,0.29-0.53).We showed a larger pooled HR in the 50% definition studies(HR,0.67,95%CI,0.55-0.83) compared with that from the 20% definition studies(HR,0.41,95%CI,0.32-0.53).Restricting analysis to the four studies including over 100 patients individually,the pooled HR was 0.65(95%CI,0.54-0.79),with a pooled HR for OS of 0.35(95%CI,0.23-0.46) in the studies of less than 100 patients.As to radiological imaging,43.1%(155/360) of the patients in the AFP response group presented with a radiological overall response,while the response rate decreased to 11.5%(36/313) in the patients from theAFP nonresponse group.The RR of having no overall response was significantly lower in the AFP response group than the AFP nonresponse group(RR,0.67;95%CI,0.61-0.75).In terms of disease control rate,86.9%(287/330) in the AFP response group and 51.0%(153/300) in the AFP nonresponse group showed successful disease control,respectively.The RR of disease control failure,similarly,was significantly lower in the AFP response group(RR,0.37;95%CI,0.23-0.58).But these findings could be overestimates because of publication and reporting bias.CONCLUSION:HCC patients presenting with an AFP response are at decreased risk of mortality.In addition,patients with an AFP response also present with a higher overall response rate and disease control rate.