Objective: to summarize the effect of the whole-course rehabilitation pathway nursing measures on postoperative rehabilitation and prognosis of patients with lumbar spinal stenosis who received surgical treatment. Met...Objective: to summarize the effect of the whole-course rehabilitation pathway nursing measures on postoperative rehabilitation and prognosis of patients with lumbar spinal stenosis who received surgical treatment. Methods: the research subjects were randomly selected 100 patients with lumbar spinal stenosis who received surgical treatment. The 100 patients were randomly divided into the study group and the control group, and the routine nursing and whole-course rehabilitation path nursing measures were implemented respectively. The two groups of patients were compared and observed. of each observation indicator. Results: the patients in the research group who implemented the whole-course rehabilitation pathway nursing measures were significantly better than those in the control group who implemented routine nursing care (P < 0.05). Conclusion: the application of the whole-course rehabilitation path nursing measures in the nursing of patients with lumbar spinal stenosis who have received surgical treatment can have a positive impact on their postoperative rehabilitation and prognosis. Psychological burden, and promote the improvement of patients' living ability.展开更多
An experimental scheme to simultaneously obtain the information of fringe visibility and path predictability is designed. In a modified Young＇s double-slit experiment, two density filters rotating at different freque...An experimental scheme to simultaneously obtain the information of fringe visibility and path predictability is designed. In a modified Young＇s double-slit experiment, two density filters rotating at different frequencies are placed before the two pineholes to encode path information. The spatial and temporal distributions of the output provide us with the wave and particle information of the single photons, respectively. The simultaneous measurement of the wave and particle information inevitably disturbs the system and thus causes some loss of the duality information, which is equal to the mixedness of the photonic state behind the density filters.展开更多
Miniaturization of electronic package leads to high heat density and heat accumulation in electronics device, resulting in short life time and premature failure of the device. Junction temperature and thermal resistan...Miniaturization of electronic package leads to high heat density and heat accumulation in electronics device, resulting in short life time and premature failure of the device. Junction temperature and thermal resistance are the critical parameters that determine the thermal management and reliability in electronics cooling. Metal oxide field effect transistor（MOSFET）is an important semiconductor device for light emitting diode-integrated circuit（LED IC） driver application, and thermal management in MOSFET is a major challenge. In this study, investigations on thermal performance of MOSFET are performed for evaluating the junction temperature and thermal resistance. Suitable modifications in FR4 substrates are proposed by introducing thermal vias and copper layer coating to improve the thermal performance of MOSFET. Experiments are conducted using thermal transient tester（T3ster） at 2.0 A input current and ambient temperature varying from25℃ to 75℃. The thermal parameters are measured for three proposed designs： FR4 with circular thermal vias, FR4 with single strip of copper layer and embedded vias, and FR4 with I-shaped copper layer, and compared with that of plain FR4 substrate. From the experimental results, FR4I-shaped shows promising results by 33.71% reduction in junction temperature and 54.19% reduction in thermal resistance. For elevated temperature, the relative increases in junction temperature and thermal resistance are lower for FR4I-shaped than those for other substrates considered. The introduction of thermal vias and copper layer plays a significant role in thermal performance.展开更多
文摘Objective: to summarize the effect of the whole-course rehabilitation pathway nursing measures on postoperative rehabilitation and prognosis of patients with lumbar spinal stenosis who received surgical treatment. Methods: the research subjects were randomly selected 100 patients with lumbar spinal stenosis who received surgical treatment. The 100 patients were randomly divided into the study group and the control group, and the routine nursing and whole-course rehabilitation path nursing measures were implemented respectively. The two groups of patients were compared and observed. of each observation indicator. Results: the patients in the research group who implemented the whole-course rehabilitation pathway nursing measures were significantly better than those in the control group who implemented routine nursing care (P < 0.05). Conclusion: the application of the whole-course rehabilitation path nursing measures in the nursing of patients with lumbar spinal stenosis who have received surgical treatment can have a positive impact on their postoperative rehabilitation and prognosis. Psychological burden, and promote the improvement of patients' living ability.
基金Supported by the National Science Foundation(INSPIRE CREATIV)under Grant No PHY-1241032the Robert A.Welch Foundation under Grant No A-1261the National Natural Science Foundation of China under Grant No 11664018
文摘An experimental scheme to simultaneously obtain the information of fringe visibility and path predictability is designed. In a modified Young＇s double-slit experiment, two density filters rotating at different frequencies are placed before the two pineholes to encode path information. The spatial and temporal distributions of the output provide us with the wave and particle information of the single photons, respectively. The simultaneous measurement of the wave and particle information inevitably disturbs the system and thus causes some loss of the duality information, which is equal to the mixedness of the photonic state behind the density filters.
基金Project supported by the Collaborative Research in Engineering,Science&Technology(Grant No.P28C2-13)
文摘Miniaturization of electronic package leads to high heat density and heat accumulation in electronics device, resulting in short life time and premature failure of the device. Junction temperature and thermal resistance are the critical parameters that determine the thermal management and reliability in electronics cooling. Metal oxide field effect transistor（MOSFET）is an important semiconductor device for light emitting diode-integrated circuit（LED IC） driver application, and thermal management in MOSFET is a major challenge. In this study, investigations on thermal performance of MOSFET are performed for evaluating the junction temperature and thermal resistance. Suitable modifications in FR4 substrates are proposed by introducing thermal vias and copper layer coating to improve the thermal performance of MOSFET. Experiments are conducted using thermal transient tester（T3ster） at 2.0 A input current and ambient temperature varying from25℃ to 75℃. The thermal parameters are measured for three proposed designs： FR4 with circular thermal vias, FR4 with single strip of copper layer and embedded vias, and FR4 with I-shaped copper layer, and compared with that of plain FR4 substrate. From the experimental results, FR4I-shaped shows promising results by 33.71% reduction in junction temperature and 54.19% reduction in thermal resistance. For elevated temperature, the relative increases in junction temperature and thermal resistance are lower for FR4I-shaped than those for other substrates considered. The introduction of thermal vias and copper layer plays a significant role in thermal performance.
