针对目前靶场光学测量设备大量使用高帧频、高像素值的数字CCD相机,设计了一种基于SCSI接口的高速数字视频存储系统;硬件平台采用普通PC机,软件使用ASPI指令直接在数字视频采集卡和SCSI适配器之间通过64 bit PCI-X总线实现数据传输,避...针对目前靶场光学测量设备大量使用高帧频、高像素值的数字CCD相机,设计了一种基于SCSI接口的高速数字视频存储系统;硬件平台采用普通PC机,软件使用ASPI指令直接在数字视频采集卡和SCSI适配器之间通过64 bit PCI-X总线实现数据传输,避开了操作系统和文件系统的速率瓶颈;在实际应用中可实现带宽为100MB/s,总容量为200GB以上的数据存储,取得了预期效果;实现了低成本平台和高效率存储的统一。展开更多
AIM: To investigate the clinical differences between small intestinal injuries in low-dose aspirin(LDA) users and in non-steroidal anti-inflammatory drug(NSAID) users who were examined by capsule endoscopy(CE) for obs...AIM: To investigate the clinical differences between small intestinal injuries in low-dose aspirin(LDA) users and in non-steroidal anti-inflammatory drug(NSAID) users who were examined by capsule endoscopy(CE) for obscure gastrointestinal bleeding(OGIB). METHODS: A total of 181 patients who underwent CE for OGIB were included in this study. Based on clinical records, laboratory data such as hemoglobin levels, major symptoms, underlying diseases, the types and duration of LDA and NSAID use, and endoscopic characteristics of CE were reviewed.RESULTS: Out of a total of 45 cases of erosive lesions, 27 cases were taking LDA or NSAIDs(7 were on NSAIDs, 9 were on LDA alone, 9 were on LDA and thienopyridine, and 2 were on LDA and warfarin).The prevalence of ulcers or erosion during chronic use of LDA, LDA and the anti-platelet drug thienopyridine (clopidogrel or ticlopidine), and NSAIDs were 64.3%, 80.0%, and 75.0%, respectively. Erosive lesions were observed predominantly in chronic LDA users, while ulcerative lesions were detected mainly in NSAID users. However, concomitant use of thienopyridine such as clopidogrel with LDA increased the proportion of ulcers. The erosive lesions were located in the whole of the small intestine(jejunum and ileum), whereas ulcerative lesions were mainly observed in the ileum(P < 0.05). CONCLUSION: Our CE findings indicate that chronic LDA users and NSAID users show different types and locations of small-bowel mucosal injuries. The concomitant use of anti-platelet drugs with LDA tends to exacerbate the injuries from LDA-type to NSAID-type injuries.展开更多
Previous reports clearly demonstrated that Helicobacter pylori(H.pylori)infection,nonsteroidal anti-inflammatory drugs(NSAID)or low dose aspirin(ASA)use significantly and independently increased the risk for the devel...Previous reports clearly demonstrated that Helicobacter pylori(H.pylori)infection,nonsteroidal anti-inflammatory drugs(NSAID)or low dose aspirin(ASA)use significantly and independently increased the risk for the development of peptic ulcer disease.Today,the presence of H.pylori infection associated with low dose ASA and/or NSAID use in the same patient is becoming more frequent and therefore the potential interaction between these factors and the consequences of it has important implications.Whether NSAID intake in the presence of H.pylori infection may further increase the risk of peptic ulcer carried by the presence of only one risk factor is still a matter of debate.Studies on the interaction between the two risk factors yielded conflicting data and no consensus has been reached in the last years.In addition,the interaction between H.pylori infection and low-dose ASA remains even more controversial.In real clinical practice,we can find different clinical scenarios involving these three factors associated with the presence of different gastrointestinal and cardiovascular risk factors.These huge variety of possible combinations greatly hinder the decision making process of physicians.展开更多
Along with the development of biomedical engineering,negative pressure aspirator is more and more widely applied in clinical treatment and patients rescuing.The study of negative pressure aspirator is an important goa...Along with the development of biomedical engineering,negative pressure aspirator is more and more widely applied in clinical treatment and patients rescuing.The study of negative pressure aspirator is an important goal pursued in emergency treatment,because it can boost aid success.Given this need,this device based on MXT8051 single-chip is developed.The device can use Pulse Width Modulation(PWM)signal to drive the motor of negative pressure pump and it can adjust the motor’s speed through the Proportional Integral Derivative(PID)algorithm to realize the setting negative pressure rapidly,accurately and stably.The control requirement is accomplishedthrough the man-machine interface.This device has the advantage of simple operation,low cost and good practicability.展开更多
文摘针对目前靶场光学测量设备大量使用高帧频、高像素值的数字CCD相机,设计了一种基于SCSI接口的高速数字视频存储系统;硬件平台采用普通PC机,软件使用ASPI指令直接在数字视频采集卡和SCSI适配器之间通过64 bit PCI-X总线实现数据传输,避开了操作系统和文件系统的速率瓶颈;在实际应用中可实现带宽为100MB/s,总容量为200GB以上的数据存储,取得了预期效果;实现了低成本平台和高效率存储的统一。
文摘AIM: To investigate the clinical differences between small intestinal injuries in low-dose aspirin(LDA) users and in non-steroidal anti-inflammatory drug(NSAID) users who were examined by capsule endoscopy(CE) for obscure gastrointestinal bleeding(OGIB). METHODS: A total of 181 patients who underwent CE for OGIB were included in this study. Based on clinical records, laboratory data such as hemoglobin levels, major symptoms, underlying diseases, the types and duration of LDA and NSAID use, and endoscopic characteristics of CE were reviewed.RESULTS: Out of a total of 45 cases of erosive lesions, 27 cases were taking LDA or NSAIDs(7 were on NSAIDs, 9 were on LDA alone, 9 were on LDA and thienopyridine, and 2 were on LDA and warfarin).The prevalence of ulcers or erosion during chronic use of LDA, LDA and the anti-platelet drug thienopyridine (clopidogrel or ticlopidine), and NSAIDs were 64.3%, 80.0%, and 75.0%, respectively. Erosive lesions were observed predominantly in chronic LDA users, while ulcerative lesions were detected mainly in NSAID users. However, concomitant use of thienopyridine such as clopidogrel with LDA increased the proportion of ulcers. The erosive lesions were located in the whole of the small intestine(jejunum and ileum), whereas ulcerative lesions were mainly observed in the ileum(P < 0.05). CONCLUSION: Our CE findings indicate that chronic LDA users and NSAID users show different types and locations of small-bowel mucosal injuries. The concomitant use of anti-platelet drugs with LDA tends to exacerbate the injuries from LDA-type to NSAID-type injuries.
文摘Previous reports clearly demonstrated that Helicobacter pylori(H.pylori)infection,nonsteroidal anti-inflammatory drugs(NSAID)or low dose aspirin(ASA)use significantly and independently increased the risk for the development of peptic ulcer disease.Today,the presence of H.pylori infection associated with low dose ASA and/or NSAID use in the same patient is becoming more frequent and therefore the potential interaction between these factors and the consequences of it has important implications.Whether NSAID intake in the presence of H.pylori infection may further increase the risk of peptic ulcer carried by the presence of only one risk factor is still a matter of debate.Studies on the interaction between the two risk factors yielded conflicting data and no consensus has been reached in the last years.In addition,the interaction between H.pylori infection and low-dose ASA remains even more controversial.In real clinical practice,we can find different clinical scenarios involving these three factors associated with the presence of different gastrointestinal and cardiovascular risk factors.These huge variety of possible combinations greatly hinder the decision making process of physicians.
文摘Along with the development of biomedical engineering,negative pressure aspirator is more and more widely applied in clinical treatment and patients rescuing.The study of negative pressure aspirator is an important goal pursued in emergency treatment,because it can boost aid success.Given this need,this device based on MXT8051 single-chip is developed.The device can use Pulse Width Modulation(PWM)signal to drive the motor of negative pressure pump and it can adjust the motor’s speed through the Proportional Integral Derivative(PID)algorithm to realize the setting negative pressure rapidly,accurately and stably.The control requirement is accomplishedthrough the man-machine interface.This device has the advantage of simple operation,low cost and good practicability.
