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 ...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).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 ergigineering, negative pressure aspirator is more and more widely applied in clinical treatment and patients rescuing. The study of negative pressure aspi- rator is an importa...Along with the development of biomedical ergigineering, negative pressure aspirator is more and more widely applied in clinical treatment and patients rescuing. The study of negative pressure aspi- rator is an important goal pursued in emergency treatment, became 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 In- tegral Derivative （PID） algorithm to realize the setting negative pressure rapidly, aoctarately and stably. The control requiroemnt is accomplishedthrough the nmn-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).
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 ergigineering, negative pressure aspirator is more and more widely applied in clinical treatment and patients rescuing. The study of negative pressure aspi- rator is an important goal pursued in emergency treatment, became 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 In- tegral Derivative （PID） algorithm to realize the setting negative pressure rapidly, aoctarately and stably. The control requiroemnt is accomplishedthrough the nmn-machine interface. This device has the advantage of simple operation, low cost and good practicability.
