Road condition is an important variable to measure in order to decrease road and vehicle operating/maintenance costs, but also to increase ride comfort and traffic safety. By using the built-in vibration sensor in sma...Road condition is an important variable to measure in order to decrease road and vehicle operating/maintenance costs, but also to increase ride comfort and traffic safety. By using the built-in vibration sensor in smart phones, it is possible to collect road roughness data which can be an indicator of road condition up to a level of Class 2 or 3 in a simple and cost efficient way. Since data collection therefore is possible to be done more frequently, one can better monitor roughness changes over time. The continuous data collection can also give early warnings of changes and damage, enable new ways to work in the operational road maintenance management, and can serve as a guide for more accurate surveys for strategic asset management and pavement planning. Collected measurement data are wirelessly transferred by the operator when needed via a web service to an internet mapping server with spatial filtering functions. The measured data can be aggregated in preferred sections, as well as exported to other GlS （geographical information systems） or road management systems. Our conclusion is that measuring roads with smart phones can provide an efficient, scalable, and cost-effective way for road organizations to deliver road condition data.展开更多
Objective：To evaluate the efficacy and safety of the treatment of chronic prostatitis/chronic pelvic pain syndrome （CP/CPPS）. Methods- The randomized controlled trials （RCTs） about the treatment for CP/CPPS all o...Objective：To evaluate the efficacy and safety of the treatment of chronic prostatitis/chronic pelvic pain syndrome （CP/CPPS）. Methods- The randomized controlled trials （RCTs） about the treatment for CP/CPPS all over the world were searched. MEDLINE （January 1966 to June 2007）, EMBASE （January 1988 to June 2007）, and 4 Chinese databases were electronically searched. The studies included in the refer- ences of eligible studies were additionally searched. Two reviewers independently screened the studies for eli- gibility, evaluated the quality and extracted the data from the eligible studies, with confirmation by cross- checking. Divergences of opinion were settled by discussion or consulted by the experts. Meta-analysis was performed by using RevMan 4.2 software. Results： Twelve original studies involving 1 003 participants met inclusion criteria. Compared with placebo, alpha-blockers could improve the symptoms of CP/CPPS obvious- ly with WMD of NIH-CPSI, total score and pain score were -4.10 （95%CI： -6. 92 to -1.28） and -1.68 （95 %CI： -2.54 to -0. 82）. Antibiotics could not improve the symptoms obviously with WMD of NIH-CP- SI; total score and pain score were -2.71 （95%CI： -4. 78 to -0. 64） and -0.86 （95%CI： -2.07 to 0.36）. Flavoxate could not improve the NIH-CPSI total score obviously, but could relieve the pain, with WMD of NIH-CPSI total score and pain score being -2.96 （95%CI： -5.17 to -0. 74） and --2.31 （95%CI.. -4.05 to 0.03）. Prostat could improve the NIH-CPSI total score obviously, but could not relieve the pain, with WMD of NIH-CPSI total score and pain score being --7. 60 （95%CI.. -9. 97 to -5.23） and -2. 02 （95%CI： -4.07 to 0. 04）. Conclusion： Drug intervention could improve total symptoms of CP/CPPS in some degree, but no universally effective treatment is available that can prove significant lasting benefit for all the symptoms of CP/CPPS. Future RCT must use an appropriate sample size and optimal duration and fol- low-up of participants. It is important to improve the quality of internal original studies.展开更多
Digital cable-stayed bridge maintenance and management system （DCBMS） was developed for the need of maintenance and management of long-span cable-stayed bridges. In this paper, the major functions and theoretical ap...Digital cable-stayed bridge maintenance and management system （DCBMS） was developed for the need of maintenance and management of long-span cable-stayed bridges. In this paper, the major functions and theoretical application of eight modules were systematically stated with the background of Harbin Songhua River cable-stayed bridge, which include data management module, inspection and measurement module, assessment module, finite dement analysis module, disease diagnosis and prediction module, maintenance module, query module and help module. By analyzing and calculating the data from manual inspection database, basic database and health monitoring subsystem, DCBMS can accomplish the functions like life prediction, disease diagnosis, comprehensive assessment, maintenance and management of bridges. Therefore, the maintenance and management of long-span cable-stayed bridges can be made digital, professional and scientific. By running this system, a real-time and specific technical guidance can be provided for the maintainers and managers of long- span cable-stayed bridges.展开更多
Objective： The high burden of injuries in Iran necessitates the establishment of a comprehensive trauma care system. The purpose of this paper is to describe the current status of trauma system regarding the componen...Objective： The high burden of injuries in Iran necessitates the establishment of a comprehensive trauma care system. The purpose of this paper is to describe the current status of trauma system regarding the components and function. Methods： The current status of trauma system in all components of a trauma system was described through expert panels and semi-structured interviews with trauma specialists and policy makers. Results： Currently, various organizations are involved in prevention, management and rehabilitation of injuries, but an integrative system approach to trauma is rather deficient. There has been ongoing progress in areas of public education through media, traffic regulation reinforcement, hospital care and prehospital services. Meanwhile, there are gaps regarding financing, legislations and education of high risk groups. The issues on education and training standards of the front line medical team and continuing education and evaluation are yet to be addressed. Trauma registry has been piloted in some provinces, but as it needs the well-developed infrastructure （regarding staff, maintenance, financial resources）, it is not yet established in our system of trauma care. Conclusions： It seems that one of the problems with trauma care in Iran is lack of coordination among trauma system organizations. Although the clinical management of trauma patients has improved in our country in the recent decade, decreasing the burden of injuries necessitates an organized approach to prevention and management of trauma in the context of a trauma system.展开更多
文摘Road condition is an important variable to measure in order to decrease road and vehicle operating/maintenance costs, but also to increase ride comfort and traffic safety. By using the built-in vibration sensor in smart phones, it is possible to collect road roughness data which can be an indicator of road condition up to a level of Class 2 or 3 in a simple and cost efficient way. Since data collection therefore is possible to be done more frequently, one can better monitor roughness changes over time. The continuous data collection can also give early warnings of changes and damage, enable new ways to work in the operational road maintenance management, and can serve as a guide for more accurate surveys for strategic asset management and pavement planning. Collected measurement data are wirelessly transferred by the operator when needed via a web service to an internet mapping server with spatial filtering functions. The measured data can be aggregated in preferred sections, as well as exported to other GlS （geographical information systems） or road management systems. Our conclusion is that measuring roads with smart phones can provide an efficient, scalable, and cost-effective way for road organizations to deliver road condition data.
文摘Objective：To evaluate the efficacy and safety of the treatment of chronic prostatitis/chronic pelvic pain syndrome （CP/CPPS）. Methods- The randomized controlled trials （RCTs） about the treatment for CP/CPPS all over the world were searched. MEDLINE （January 1966 to June 2007）, EMBASE （January 1988 to June 2007）, and 4 Chinese databases were electronically searched. The studies included in the refer- ences of eligible studies were additionally searched. Two reviewers independently screened the studies for eli- gibility, evaluated the quality and extracted the data from the eligible studies, with confirmation by cross- checking. Divergences of opinion were settled by discussion or consulted by the experts. Meta-analysis was performed by using RevMan 4.2 software. Results： Twelve original studies involving 1 003 participants met inclusion criteria. Compared with placebo, alpha-blockers could improve the symptoms of CP/CPPS obvious- ly with WMD of NIH-CPSI, total score and pain score were -4.10 （95%CI： -6. 92 to -1.28） and -1.68 （95 %CI： -2.54 to -0. 82）. Antibiotics could not improve the symptoms obviously with WMD of NIH-CP- SI; total score and pain score were -2.71 （95%CI： -4. 78 to -0. 64） and -0.86 （95%CI： -2.07 to 0.36）. Flavoxate could not improve the NIH-CPSI total score obviously, but could relieve the pain, with WMD of NIH-CPSI total score and pain score being -2.96 （95%CI： -5.17 to -0. 74） and --2.31 （95%CI.. -4.05 to 0.03）. Prostat could improve the NIH-CPSI total score obviously, but could not relieve the pain, with WMD of NIH-CPSI total score and pain score being --7. 60 （95%CI.. -9. 97 to -5.23） and -2. 02 （95%CI： -4.07 to 0. 04）. Conclusion： Drug intervention could improve total symptoms of CP/CPPS in some degree, but no universally effective treatment is available that can prove significant lasting benefit for all the symptoms of CP/CPPS. Future RCT must use an appropriate sample size and optimal duration and fol- low-up of participants. It is important to improve the quality of internal original studies.
基金Sponsored by the Research Fund for the Doctoral Program of Higher Education of China(Grant No.20050213008)Scientific and Technical Plan Item of Communications Department of Heilongjiang Province of China(Grant No.2004).
文摘Digital cable-stayed bridge maintenance and management system （DCBMS） was developed for the need of maintenance and management of long-span cable-stayed bridges. In this paper, the major functions and theoretical application of eight modules were systematically stated with the background of Harbin Songhua River cable-stayed bridge, which include data management module, inspection and measurement module, assessment module, finite dement analysis module, disease diagnosis and prediction module, maintenance module, query module and help module. By analyzing and calculating the data from manual inspection database, basic database and health monitoring subsystem, DCBMS can accomplish the functions like life prediction, disease diagnosis, comprehensive assessment, maintenance and management of bridges. Therefore, the maintenance and management of long-span cable-stayed bridges can be made digital, professional and scientific. By running this system, a real-time and specific technical guidance can be provided for the maintainers and managers of long- span cable-stayed bridges.
文摘Objective： The high burden of injuries in Iran necessitates the establishment of a comprehensive trauma care system. The purpose of this paper is to describe the current status of trauma system regarding the components and function. Methods： The current status of trauma system in all components of a trauma system was described through expert panels and semi-structured interviews with trauma specialists and policy makers. Results： Currently, various organizations are involved in prevention, management and rehabilitation of injuries, but an integrative system approach to trauma is rather deficient. There has been ongoing progress in areas of public education through media, traffic regulation reinforcement, hospital care and prehospital services. Meanwhile, there are gaps regarding financing, legislations and education of high risk groups. The issues on education and training standards of the front line medical team and continuing education and evaluation are yet to be addressed. Trauma registry has been piloted in some provinces, but as it needs the well-developed infrastructure （regarding staff, maintenance, financial resources）, it is not yet established in our system of trauma care. Conclusions： It seems that one of the problems with trauma care in Iran is lack of coordination among trauma system organizations. Although the clinical management of trauma patients has improved in our country in the recent decade, decreasing the burden of injuries necessitates an organized approach to prevention and management of trauma in the context of a trauma system.
