期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
数字经济对我国物流业经济效益的影响——以社会消费水平为中介效应的实证检验 被引量:1
1
作者 李亚男 王姗姗 《黑河学院学报》 2024年第10期55-58,133,共5页
数字经济的快速发展,不仅带动了社会消费水平的提高,也推动了物流业经济效益的增长。利用我国30省(市、自治区)2012-2020年数字经济、物流业和社会消费等相关数据,探讨并检验社会消费水平在数字经济推动物流业经济效益增长过程中的传导... 数字经济的快速发展,不仅带动了社会消费水平的提高,也推动了物流业经济效益的增长。利用我国30省(市、自治区)2012-2020年数字经济、物流业和社会消费等相关数据,探讨并检验社会消费水平在数字经济推动物流业经济效益增长过程中的传导机制。研究结果表明:数字经济显著促进我国物流业经济效益增长,社会消费水平在数字经济推动物流业经济效益增长中发生传导作用。为实现物流经济效益的合理化增长,政府应强化产业政策,引导数字经济与物流产业融合发展;充分释放社会消费潜力,优化收入分配;培养高素质物流人才,提高物流效益;大力发展绿色物流,促进物流可持续发展。 展开更多
关键词 数字经济 社会消费水平 物流业 经济效益
在线阅读 下载PDF
多通道微震信号采集系统设计 被引量:2
2
作者 蔡建羡 缪杰 +2 位作者 姚振静 李亚南 韩智明 《工矿自动化》 北大核心 2018年第8期100-104,共5页
针对现有矿山微震信号采集系统存在价格昂贵且通用性不强等问题,设计了一种多通道微震信号采集系统。该系统采用地震计拾取微震信号,利用采集电路实现对微震信号的放大、数模转换及数字滤波,利用STM32将滤波后的信号通过USART实时发送... 针对现有矿山微震信号采集系统存在价格昂贵且通用性不强等问题,设计了一种多通道微震信号采集系统。该系统采用地震计拾取微震信号,利用采集电路实现对微震信号的放大、数模转换及数字滤波,利用STM32将滤波后的信号通过USART实时发送给上位机进行分析处理。测试结果表明,该系统可以准确采集、记录地震计拾取的3个通道的微震信号,稳定性好、可靠性高、成本低。 展开更多
关键词 矿山微震信号 地震计 数据采集 信号监测 STM32
在线阅读 下载PDF
Clinical Value Analysis of Alprazolam Combined with Gastrodin in the Treatment of Neurasthenia
3
作者 liyanan 《外文科技期刊数据库(文摘版)医药卫生》 2022年第6期060-063,共4页
Objective: to explore the clinical effect of alprazolam combined with gastrodin on neurasthenia patients, and to improve their mental state and sleep quality. Methods: 100 patients with neurasthenia admitted to our ho... Objective: to explore the clinical effect of alprazolam combined with gastrodin on neurasthenia patients, and to improve their mental state and sleep quality. Methods: 100 patients with neurasthenia admitted to our hospital from July 2020 to July 2021 were selected as the research objects, and randomly divided into two groups. The control group was treated with alprazolam produced by Beijing Yimin Pharmaceutical Co., Ltd. and approved by Chinese medicine H11020890, while the research group was treated with gastrodin produced by Guangdong Sancaishiqi Pharmaceutical Co., Ltd. and approved by Chinese medicine H44021809. Results: after treatment, the effective rate of the study group was higher than that of the control group (P < 0.05). After treatment, the scores of SAS and SDS in the study group were lower than those in the control group before treatment. And the score of the study group was lower than that of the control group (P < 0.05). Before treatment, there was no statistical significance between the PSQI scores of the study group and the control group (P > 0.05). After treatment, the PSQI scores of both groups were lower than before treatment, and the scores of the study group were lower than those of the control group (P < 0.05). The treatment satisfaction of the study group was higher than that of the control group (P < 0.05). Conclusion: to investigate the abnormal mental state and poor sleep quality caused by neurasthenia, alprazolam combined with gastrodin can help patients to adjust their mental state and alleviate their poor sleep quality, which once again shows good effect. 展开更多
关键词 NEURASTHENIA ALPRAZOLAM GASTRODIN mental state sleep quality
暂未订购
上一页 1 下一页 到第
使用帮助 返回顶部