基于泛在末端感知的 单户故障研判定位及主动抢修     

马永寿  芈书亮 《农村电气化》2020,(4):51-53

文章围绕国家电网公司因故障停电、95598工单报修时间过长、故障类型无法研判同时等日益突出的问题,采取集中、实验的调研方式,进行现场论证。操作过程中,通过采集宽带技术的提升,加强营销、运检、调控中心三个专业之间的协同,实现停电信息主动上报,最终提升客户供电服务水平。  相似文献   

羊支原体性肺炎两标准株对抗菌药物敏感性的研究     

林密  孙继国  柴静 《猪业科学》2003,20(12):57-59

本实验测定了环丙沙星、氧氟沙星、单诺沙星、红霉素、罗红霉素、泰勒菌素、泰妙菌素、四环素等8种药物对羊肺炎支原体两个标准株Y98和Y-goat的体外抑菌浓度以及红霉素与氧氟沙星、泰勒菌素对Y-goat和四环素与氧氟沙星、泰勒菌素对Y98的联合药敏作用。对羊肺炎支原体两个标准株对抗菌药物的敏感性进行了分析。  相似文献   

雏鸡饮服鸡源芽孢杆菌对其生长性能的影响   总被引：1，自引：0，他引：1  

李国治  李明丽  王米  任文辉 《水禽世界》2004,(4):14-15

本研究利用从健康鸡消化道分离的鸡源芽孢杆菌饲喂雏鸡,采用鸡白痢沙门氏菌作为攻毒病原菌,观察试验组与对照组在生长速度及死亡率上的差异。实验结果表明试验组的生长速度明显高于对照组(p<0.01),死亡率明显低于对照组(低20%),说明芽孢杆菌是一种用于研制微生态制剂的理想益生菌。  相似文献   

奶牛盐酸普鲁卡因过敏案例分析   总被引：1，自引：0，他引：1  

米坤熠  吕长荣 《中国奶牛》2006,(1):40-41

笔者从事临床工作以来，遇3例盐酸普鲁卡因过敏，现将病历、诊治及体会介绍如下。  相似文献   

山羊传染性胸膜肺炎支原体和绵羊肺炎支原体对抗菌药物敏感性的研究   总被引：4，自引：0，他引：4  

林密  柴静  孙继国  王爱华 《中国兽药杂志》2004,38(5):29-32

测定了环丙沙星、氧氟沙星、单诺沙星、红霉素、罗红霉素、泰乐菌素、泰妙菌素、四环素等8种药物对羊肺炎支原体两个标准株Y-98和Y-goat的体外抑菌浓度以及红霉素与氧氟沙星、泰乐菌素对Y-goat和四环素与氧氟沙星、泰乐菌素对Y-98的联合药敏作用.结果表明,这8种抗菌药物对Y-goat和Y-98的MIC(μg/mL)分别为:环丙沙星0.223、0.002 23,氧氟沙星0.281、0.014 0,单诺沙星0.136、0.014 0,红霉素0.021 8、无效,罗红霉素0.032 7、无效,泰乐菌素0.042 2、0.039 0,泰妙菌素0.021 7、0.052 0,四环素0.195、0.052 0.红霉素与氧氟沙星的联合药敏指数为1,是相加作用;红霉素与泰乐菌素对Y-goat的联合药敏指数为1.5,是无关作用;四环素与氧氟沙星、泰乐菌素对Y-98的联合药敏试验指数均为0.375,是协同作用.  相似文献   

Effects of three-dimensional spheroid culture on equine mesenchymal stem cell plasticity     

Mi Jeong Park  Jienny Lee  Jeong Su Byeon  Da-Un Jeong  Na-Yeon Gu  In-Soo Cho  Sang-Ho Cha 《Veterinary research communications》2018,42(3):171-181

Mesenchymal stem cells (MSCs) are useful candidates for tissue engineering and cell therapy fields. We optimize culture conditions of equine adipose tissue-derived MSCs (eAD-MSCs) for treatment of horse fractures. To investigate enhancing properties of three-dimensional (3D) culture system in eAD-MSCs, we performed various sized spheroid formation and determined changes in gene expression levels to obtain different sized spheroid for cell therapy. eAD-MSCs were successfully isolated from horse tailhead. Using hanging drop method, spheroid formation was generated for three days. Quantitative real-time PCR was performed to analyze gene expression. As results, expression levels of pluripotent markers were increased depending on spheroid size and the production of PGE₂ was increased in spheroid formation compared to that in monolayer. Ki-67 showed a remarkable increase in the spheroid formed with 2.0?×?10⁵ cells/drop as compared to that in the monolayer. Expression levels of angiogenesis-inducing factors such as VEGF, IL-6, IL-8, and IL-18 were significantly increased in spheroid formation compared to those in the monolayer. Expression levels of bone morphogenesis-inducing factors such as Cox-2 and TGF-β1 were also significantly increased in spheroid formation compared to those in the monolayer. Expression levels of osteocyte-specific markers such as RUNX2, osteocalcin, and differentiation potential were also significantly increased in spheroid formation compared to those in the monolayer. Therefore, spheroid formation of eAD-MSCs through the hanging drop method can increases the expression of angiogenesis-inducing and bone morphogenesis-inducing factors under optimal culture conditions.  相似文献   

非线性、分形与期锌市场价格     

文先明  周贤军  张蜜 《湖南农业大学学报(自然科学版)》2011,(3):31-35

从非线性角度研究期锌市场，运用R/S分析法对期锌市场进行分析，发现期锌市场的Hurst指数为0.6183,其价格收益率序列是分维时间序列，具有分形结构，维数为1.6174。期锌市场的平均周期长度为176天，具有强持续性和相关性。关联系数为19.47%，远远大于国外相关市场。在风险方面，期锌市场的风险比期铜市场的要小，而比股票市场的风险要大。  相似文献   

环境噪音对饲养绿壳蛋鸡的影响     

张勇  密国辉 《贵州畜牧兽医》2015,39(2):18-19

试验对绿壳蛋鸡在高速公路旁不同距离生产性能受环境噪音的影响进行分析比较,通过在平坝县十字乡青山村基地、开发区幺铺镇尚兴村基地、镇宁县城关镇五里坪村基地的监测,结果表明:距离高速公路800、650、500 m饲养绿壳蛋鸡,环境噪音对绿壳蛋鸡的生产性能均无明显影响。  相似文献   

我国林木生物质发电产业中政府角色与发展模式的思考     

来飞  米锋 《世界林业研究》2020,33(2):106-111

我国林木生物质能源十分丰富，适宜发展林木生物质发电产业。但是目前林木生物质发电产业仍处于初级发展阶段，产业发展模式还不够成熟，产业潜力未被充分挖掘。文中基于产业模式相关研究基础，结合我国林木生物质发电产业发展实践，设计了更为全面系统的林木生物质发电产业发展模式，根据政府对产业发展介入力度不同，将产业发展模式分为萌芽期（政府主导型产业发展模式）、成长期（政府引导型产业发展模式）、成熟期（政府规制型产业发展模式），并从资源、经济、社会、环境、技术5个方面论证林木生物质发电产业发展的可行性、有效性和持续发展的稳定性，以期为国家主管部门制定相关政策提供理论参考。  相似文献   

The innovation effect of low-carbon technology transfer from the perspective of carbon emission reduction demand: A case study of the Yangtze River Economic Belt in China     

Zefeng Mi  Zhixin Qiu  Gang Zeng  Can Zhou  Lei Ye 《Growth and change》2023,54(2):625-648

Reducing carbon emissions is the only way to solve the global climate problem, which obviously requires the joint efforts of all regions. From the perspective of carbon emission reduction demand, this research obtains the data of low-carbon patents and CO₂ emissions from 2000 to 2019, and then explores the innovation effect of low-carbon technology transfer in the Yangtze River Economic Belt (YREB). We draw the following conclusions: (1) Low-carbon technology transfer has a positive impact on low-carbon technology innovation. However, a large number of low-carbon technology transfers are concentrated between developed regions in the YREB at present. (2) No matter from the perspective of total amount or efficiency, carbon emission reduction demand can play positive moderating role in the process of exerting the innovation effect of low-carbon technology transfer, indicating that the transfer of low-carbon technologies to regions with high demand is efficient. (3) The moderating effect of carbon emission reduction demand in different regions has regional heterogeneity. Carbon emissions per unit of GDP plays a greater role in moderating the innovation effect of low-carbon technology transfer in the eastern region, while CO₂ emissions plays a greater role in the central and western regions. Therefore, we propose to strengthen the transfer of low-carbon technologies between developed and less-developed regions, and adopt differentiation strategies according to the actual situation of each region. Our research has deepened the understanding of environmental economic geography on the innovation effect of low-carbon technology transfer, and has reference significance for global low-carbon technology cooperation.  相似文献