In this paper, the three dimensional flow field in the billet mold has been studied by simple numerical method.The influence caused by teeming deviation.from the mold center has been discussed.
In this paper,we introduce a three-step composite implicit iteration process for approximating the common fixed point of three uniformly continuous and asymptotically generalizedΦ-hemicontractive mappings in the inte...In this paper,we introduce a three-step composite implicit iteration process for approximating the common fixed point of three uniformly continuous and asymptotically generalizedΦ-hemicontractive mappings in the intermediate sense.We prove that our proposed iteration process converges to the common fixed point of three finite family of asymptotically generalizedΦ-hemicontractive mappings in the intermediate sense.Our results extends,improves and complements several known results in literature.展开更多
目的探讨高血压合并阻塞性睡眠呼吸障碍患者持续气道内正压通气(CPAP)或手术治疗前后的血压昼夜节律变化。方法入选高血压患者105例,根据多导睡眠仪监测结果分为单纯高血压组47例、高血压合并轻度阻塞性睡眠呼吸暂停综合征(OSAS)组36例...目的探讨高血压合并阻塞性睡眠呼吸障碍患者持续气道内正压通气(CPAP)或手术治疗前后的血压昼夜节律变化。方法入选高血压患者105例,根据多导睡眠仪监测结果分为单纯高血压组47例、高血压合并轻度阻塞性睡眠呼吸暂停综合征(OSAS)组36例和高血压合并中、重度 OSAS 组22例。CPAP 或手术治疗前后行24 h 动态血压监测,比较治疗前后睡眠呼吸参数与血压昼夜节律的关系。结果治疗前单纯高血压组昼夜血压呈非杓型占23.4%,高血压合并轻度和中、重度阻塞性睡眠呼吸暂停综合征组昼夜血压呈非杓型的分别占47.2%和59.1%。与单纯高血压组比较,差异有统计学意义(P<0.05)。治疗后各组昼夜血压呈非杓型的比例均有所下降,分别为19.1%,38.9%和45.5%,与治疗前各组间比较,差异有统计学意义(P<0.05)。中、重度阻塞性睡眠呼吸暂停综合征组非杓型血压下降最为明显。结论高血压患者昼夜血压呈非杓型时应考虑合并睡眠呼吸暂停综合征,且昼夜血压变化与 OSAS 严重性相关,CPAP 或手术治疗后非杓型明显减少。展开更多
Based on the auto- corrclation coefficient model.we gave an expression ofsize deviation of raw silk when testing- length is equal to a fraction for the unitlength,and discussed how the ratio of the size deviatinons by...Based on the auto- corrclation coefficient model.we gave an expression ofsize deviation of raw silk when testing- length is equal to a fraction for the unitlength,and discussed how the ratio of the size deviatinons by different testing-length fluctuates with the pseudo- cycle.Using these results as a basis,weexamined how the size deviation with the continuous property of raw silk sizechanges when changing the testing- length from 450 m to ll2.5m.Then weexamined the problem of quality control of raw silk.展开更多
文摘In this paper, the three dimensional flow field in the billet mold has been studied by simple numerical method.The influence caused by teeming deviation.from the mold center has been discussed.
文摘In this paper,we introduce a three-step composite implicit iteration process for approximating the common fixed point of three uniformly continuous and asymptotically generalizedΦ-hemicontractive mappings in the intermediate sense.We prove that our proposed iteration process converges to the common fixed point of three finite family of asymptotically generalizedΦ-hemicontractive mappings in the intermediate sense.Our results extends,improves and complements several known results in literature.
文摘目的探讨高血压合并阻塞性睡眠呼吸障碍患者持续气道内正压通气(CPAP)或手术治疗前后的血压昼夜节律变化。方法入选高血压患者105例,根据多导睡眠仪监测结果分为单纯高血压组47例、高血压合并轻度阻塞性睡眠呼吸暂停综合征(OSAS)组36例和高血压合并中、重度 OSAS 组22例。CPAP 或手术治疗前后行24 h 动态血压监测,比较治疗前后睡眠呼吸参数与血压昼夜节律的关系。结果治疗前单纯高血压组昼夜血压呈非杓型占23.4%,高血压合并轻度和中、重度阻塞性睡眠呼吸暂停综合征组昼夜血压呈非杓型的分别占47.2%和59.1%。与单纯高血压组比较,差异有统计学意义(P<0.05)。治疗后各组昼夜血压呈非杓型的比例均有所下降,分别为19.1%,38.9%和45.5%,与治疗前各组间比较,差异有统计学意义(P<0.05)。中、重度阻塞性睡眠呼吸暂停综合征组非杓型血压下降最为明显。结论高血压患者昼夜血压呈非杓型时应考虑合并睡眠呼吸暂停综合征,且昼夜血压变化与 OSAS 严重性相关,CPAP 或手术治疗后非杓型明显减少。
文摘Based on the auto- corrclation coefficient model.we gave an expression ofsize deviation of raw silk when testing- length is equal to a fraction for the unitlength,and discussed how the ratio of the size deviatinons by different testing-length fluctuates with the pseudo- cycle.Using these results as a basis,weexamined how the size deviation with the continuous property of raw silk sizechanges when changing the testing- length from 450 m to ll2.5m.Then weexamined the problem of quality control of raw silk.
