为提高CTCS3-300T车载列控系统监控及数据分析的实时性、有效性,利用Spring MVC框架和MySQL数据库等技术,开发一套基于B/S架构的列控运行数据分析诊断系统。该系统采用展现层、业务层、持久层3层架构模型,实现C T C S3-300T列控系统运...为提高CTCS3-300T车载列控系统监控及数据分析的实时性、有效性,利用Spring MVC框架和MySQL数据库等技术,开发一套基于B/S架构的列控运行数据分析诊断系统。该系统采用展现层、业务层、持久层3层架构模型,实现C T C S3-300T列控系统运行记录自动下载与安全传输、分类存储、故障智能诊断及故障告警等功能,系统运行稳定可靠,为高铁列控系统的监控及数据分析诊断提供一种新的设计方法。展开更多
To discover the knowledge of fault diagnosis in maintenance record of flexible manufacture system(FMS) equipment. An algorithm (process) was presented, which consists of ① preparatory phase in which some items in mai...To discover the knowledge of fault diagnosis in maintenance record of flexible manufacture system(FMS) equipment. An algorithm (process) was presented, which consists of ① preparatory phase in which some items in maintenance record are selected and decomposed into associated concepts and attributes, and ② discovering and establishing process, in which some possible relationships between the concepts and attributes can be established and knowledge is formulated. The rich diagnosis knowledge in maintenance record was captured through applying the method. An application of the method to the diagnosis system for FMS equipment showed that the approach is correct and effective.展开更多
Objective: To examine the outcome of in vitro fertilization according to the body mass index of infertile patients. Study design: Between September 2003 and May 2005, 573 patients underwent 789 in vitro fertilization ...Objective: To examine the outcome of in vitro fertilization according to the body mass index of infertile patients. Study design: Between September 2003 and May 2005, 573 patients underwent 789 in vitro fertilization cycles or ICSI because of male factor, tubal factor, and unexplained infertility were retrospectively included from our IVF database. The patients were classified in four groups: BMI< 20 kg/m2(264 cycles), 20 ≤BMI< 25(394 cycles), 25 ≤BMI< 30(83 cycles), and BMI ≥30(48 cycles). All patients had a long protocol for IVF with a combination of the GnRH agonist and recombinant FSH. Results: All parameters of ovarian response were comparable except the total required r-FSH dose. This dose was statistically higher in the group of BMI ≥30 compared to the other groups (p=0.0003). All parameters of IVF outcome were comparable, including the cancellation rate, the implantation rate, and pregnancy rates. Conclusion: Obese patients require a higher r-FSH dose to achieve follicular maturation than normal weight patients. Obesity does not affect negatively results of in vitro fertilization.展开更多
Objective: To investigate the association between physician-documented diagnoses of maternal autoimmune diseases, allergies, and asthma around the time of pregnancy and subsequent diagnoses of autism in children. Desi...Objective: To investigate the association between physician-documented diagnoses of maternal autoimmune diseases, allergies, and asthma around the time of pregnancy and subsequent diagnoses of autism in children. Design: A case-control study nested within a cohort of infants born between January 1995 and June 1999. Setting: Northern California Kaiser Permanente Medical Care Program. Participants: Cases (n=420) were children with at least 1 diagnosis of an autism spectrum disorder (ASD) recorded in Kaiser Permanente outpatient clinical databases. Controls (n=2100) were children without an ASD diagnosis who were frequency matched to cases on sex, birth year, and hospital of birth. Main Outcome Measures: Frequencies of maternal immunologic disorders were compared between cases and controls with a χ2 statistic, and relative risks were estimated by crude and adjusted odds ratios and 95%confidence intervals using logistic regression. Results: The final study population included 407 cases and 2095 controls. A similar proportion of case and control mothers had a diagnosis of any autoimmune disease in the 4-year period surrounding pregnancy (10.3%vs 8.2%, P = .15). After adjustment for maternal factors, only 1 autoimmune condition, psoriasis, was significantly associated with ASDs (adjusted odds ratio, 2.7; 95%confidence interval, 1.3-5.8)-. A greater than 2-fold elevated risk of ASD was observed for maternal asthma and allergy diagnoses recorded during the second trimester of pregnancy. Conclusions: These findings suggest that ma ternal autoimmune disorders present in women around the time of pregnancy are unlikely to contribute significantly to autism risk. Further etiologic investigations are needed to confirm these results and should include objective documentation of diagnoses and consider a larger set of maternal immune-related conditions, including asthma and allergies.展开更多
Purpose： Rib fractures are the most common skeletal thoracic injuries resulting from blunt chest trauma. Half of the rib fractures are not detected upon a precise physical evaluation and radiographs. Recently ultraso...Purpose： Rib fractures are the most common skeletal thoracic injuries resulting from blunt chest trauma. Half of the rib fractures are not detected upon a precise physical evaluation and radiographs. Recently ultrasonography （USG） has been investigated to detect rib fractures. But based on literature the usefulness of USG varies widely. This study was conducted to investigate the role of USG in the detection of possible rib fractures in comparison with radiography. Methods： In this cross-sectional study, consecutive patients with minor blunt chest trauma and suspected rib fractures presenting in Imam Reza Hospital located in Mashhad-Iran, between April 2013 and October 2013 were assessed by USG and radiography. The radiography was performed in a posteroanterior （PA） chest projection and oblique rib view centered over the area of trauma. The time duration spent in taking USG and radiography were recorded. The prevalence and location of fractures revealed by USG and radiography were compared. Results： Sixty-one suspected patients were assessed. The male to female ratio was 2.4：1 （43 men and 18 women） with a mean ± SD age of （44.3 ± 19.7） years. There were totally 59 rib fractures in 38 （62.3%） patients based on radiography and USG, while 23 （37.7%） patients had no diagnostic evidence of rib lesions. USG revealed 58 rib fractures in 33 （54.1%） of 61 suspected patients and radiographs revealed 32 rib fractures in 20 （32.8%） of 61 patients. A total of 58 （98.3%） rib fractures were detected by USG, whereas oblique rib view and PA chest radiography showed 27 （45.8%） and 24 （40.7%） rib fractures, respectively. The average duration of USG was （12 ± 3） min （range 7e17 min）, whereas the duration of radiography was （27 ± 6） min （range 15-37 min）. The kappa coefficient showed a low level of agreement between both USG and PA chest radiography （kappa coefficient=0.28）, and between USG and oblique rib view （kappa coefficient=0.32）. Conclusion： USG discloses more fractures than radiography in most patients presenting with suspected rib fractures. Moreover USG requires significantly less time than radiography.展开更多
文摘为提高CTCS3-300T车载列控系统监控及数据分析的实时性、有效性,利用Spring MVC框架和MySQL数据库等技术,开发一套基于B/S架构的列控运行数据分析诊断系统。该系统采用展现层、业务层、持久层3层架构模型,实现C T C S3-300T列控系统运行记录自动下载与安全传输、分类存储、故障智能诊断及故障告警等功能,系统运行稳定可靠,为高铁列控系统的监控及数据分析诊断提供一种新的设计方法。
文摘To discover the knowledge of fault diagnosis in maintenance record of flexible manufacture system(FMS) equipment. An algorithm (process) was presented, which consists of ① preparatory phase in which some items in maintenance record are selected and decomposed into associated concepts and attributes, and ② discovering and establishing process, in which some possible relationships between the concepts and attributes can be established and knowledge is formulated. The rich diagnosis knowledge in maintenance record was captured through applying the method. An application of the method to the diagnosis system for FMS equipment showed that the approach is correct and effective.
文摘Objective: To examine the outcome of in vitro fertilization according to the body mass index of infertile patients. Study design: Between September 2003 and May 2005, 573 patients underwent 789 in vitro fertilization cycles or ICSI because of male factor, tubal factor, and unexplained infertility were retrospectively included from our IVF database. The patients were classified in four groups: BMI< 20 kg/m2(264 cycles), 20 ≤BMI< 25(394 cycles), 25 ≤BMI< 30(83 cycles), and BMI ≥30(48 cycles). All patients had a long protocol for IVF with a combination of the GnRH agonist and recombinant FSH. Results: All parameters of ovarian response were comparable except the total required r-FSH dose. This dose was statistically higher in the group of BMI ≥30 compared to the other groups (p=0.0003). All parameters of IVF outcome were comparable, including the cancellation rate, the implantation rate, and pregnancy rates. Conclusion: Obese patients require a higher r-FSH dose to achieve follicular maturation than normal weight patients. Obesity does not affect negatively results of in vitro fertilization.
文摘Objective: To investigate the association between physician-documented diagnoses of maternal autoimmune diseases, allergies, and asthma around the time of pregnancy and subsequent diagnoses of autism in children. Design: A case-control study nested within a cohort of infants born between January 1995 and June 1999. Setting: Northern California Kaiser Permanente Medical Care Program. Participants: Cases (n=420) were children with at least 1 diagnosis of an autism spectrum disorder (ASD) recorded in Kaiser Permanente outpatient clinical databases. Controls (n=2100) were children without an ASD diagnosis who were frequency matched to cases on sex, birth year, and hospital of birth. Main Outcome Measures: Frequencies of maternal immunologic disorders were compared between cases and controls with a χ2 statistic, and relative risks were estimated by crude and adjusted odds ratios and 95%confidence intervals using logistic regression. Results: The final study population included 407 cases and 2095 controls. A similar proportion of case and control mothers had a diagnosis of any autoimmune disease in the 4-year period surrounding pregnancy (10.3%vs 8.2%, P = .15). After adjustment for maternal factors, only 1 autoimmune condition, psoriasis, was significantly associated with ASDs (adjusted odds ratio, 2.7; 95%confidence interval, 1.3-5.8)-. A greater than 2-fold elevated risk of ASD was observed for maternal asthma and allergy diagnoses recorded during the second trimester of pregnancy. Conclusions: These findings suggest that ma ternal autoimmune disorders present in women around the time of pregnancy are unlikely to contribute significantly to autism risk. Further etiologic investigations are needed to confirm these results and should include objective documentation of diagnoses and consider a larger set of maternal immune-related conditions, including asthma and allergies.
文摘Purpose： Rib fractures are the most common skeletal thoracic injuries resulting from blunt chest trauma. Half of the rib fractures are not detected upon a precise physical evaluation and radiographs. Recently ultrasonography （USG） has been investigated to detect rib fractures. But based on literature the usefulness of USG varies widely. This study was conducted to investigate the role of USG in the detection of possible rib fractures in comparison with radiography. Methods： In this cross-sectional study, consecutive patients with minor blunt chest trauma and suspected rib fractures presenting in Imam Reza Hospital located in Mashhad-Iran, between April 2013 and October 2013 were assessed by USG and radiography. The radiography was performed in a posteroanterior （PA） chest projection and oblique rib view centered over the area of trauma. The time duration spent in taking USG and radiography were recorded. The prevalence and location of fractures revealed by USG and radiography were compared. Results： Sixty-one suspected patients were assessed. The male to female ratio was 2.4：1 （43 men and 18 women） with a mean ± SD age of （44.3 ± 19.7） years. There were totally 59 rib fractures in 38 （62.3%） patients based on radiography and USG, while 23 （37.7%） patients had no diagnostic evidence of rib lesions. USG revealed 58 rib fractures in 33 （54.1%） of 61 suspected patients and radiographs revealed 32 rib fractures in 20 （32.8%） of 61 patients. A total of 58 （98.3%） rib fractures were detected by USG, whereas oblique rib view and PA chest radiography showed 27 （45.8%） and 24 （40.7%） rib fractures, respectively. The average duration of USG was （12 ± 3） min （range 7e17 min）, whereas the duration of radiography was （27 ± 6） min （range 15-37 min）. The kappa coefficient showed a low level of agreement between both USG and PA chest radiography （kappa coefficient=0.28）, and between USG and oblique rib view （kappa coefficient=0.32）. Conclusion： USG discloses more fractures than radiography in most patients presenting with suspected rib fractures. Moreover USG requires significantly less time than radiography.
