Zobrazeno 1 - 10
of 308
pro vyhledávání: '"波動"'
Publikováno v:
Zhongguo youzhi, Vol 49, Iss 5, Pp 14-20 (2024)
为了更好地理解油料产品价格的波动规律,提升国内油料产品价格研究水平,以大豆、油菜、花生为油料作物的典型代表,以2011年2月—2019年12月油料产业链上各个环节月度价格数据为基础
Externí odkaz:
https://doaj.org/article/ea33da17ec4047e89a3b801344a3d740
Autor:
张光辉(ZHANG Guanghui)
Publikováno v:
Zhejiang Daxue xuebao. Lixue ban, Vol 51, Iss 3, Pp 328-335 (2024)
Based on the equivalent integral-differential form of the equation considered, an alternate directional implicit (ADI) numerical scheme for two-dimensional nonlinear time-fractional wave equations with initial singularity was developed by combining t
Externí odkaz:
https://doaj.org/article/fddec803a352485ca424dcce63412b33
Publikováno v:
Tourism Review, 2023, Vol. 78, Issue 4, pp. 1092-1115.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/TR-08-2022-0416
Publikováno v:
Journal of Diabetes, Vol 15, Iss 5, Pp 368-381 (2023)
Abstract Background The relationship between glucose fluctuation and the risk of cardiovascular disease (CVD) in patients with diabetes remains elusive. Glycated hemoglobin (HbA1c) variability is a key parameter of glucose fluctuation. Methods PubMed
Externí odkaz:
https://doaj.org/article/3010a1c400234219bc6295975d4cf7df
Autor:
吴倩, 陶立元, 陈思琪, 钟莲梅, 刘丽萍, 米东华
Publikováno v:
Zhongguo cuzhong zazhi, Vol 17, Iss 8, Pp 845-850 (2022)
目的 探讨血糖波动与动脉瘤性蛛网膜下腔出血(aneurysmal subarachnoid hemorrhage,aSAH)患者发生迟发性脑缺血(delayed cerebral ischemic,DCI)及30 d死亡的关系。 方法 回顾性收集并分析aSAH患者的临
Externí odkaz:
https://doaj.org/article/557222cefe6f4f6d881d85018160cfb7
Autor:
SHENYinfang(沈银芳), YANXin(严鑫)
Publikováno v:
Zhejiang Daxue xuebao. Lixue ban, Vol 49, Iss 1, Pp 66-75 (2022)
基于广义自回归得分(generalized autoregressive score,GAS)和已实现波动率异质自回归(heterogeneous autoregressive of realized volatility,HAR-RV)模型,引入投资者情绪因素,构建了HAR-RV GAS和HAR-RV-SENT GAS
Externí odkaz:
https://doaj.org/article/47c4cf878c944483aa71b449486ffce2
Publikováno v:
全球能源互联网, Vol 5, Iss 3, Pp 290-297 (2022)
近年来,大规模风电汇集系统实际运行中频繁出现电压反复波动现象,具有波动幅度大、波动峰谷值切换速率达秒级的特点,与风能随机性、无功补偿装置动作引起的电压波动现象具有显著
Externí odkaz:
https://doaj.org/article/357843cb16bb4c69b79ec3243fb9b6cc
Publikováno v:
Tourism Review, 2020, Vol. 76, Issue 2, pp. 489-502.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/TR-09-2019-0373
Autor:
Burnett, Mark, Johnston, Tony
Publikováno v:
Tourism Review, 2020, Vol. 75, Issue 3, pp. 595-606.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/TR-04-2019-0118
Autor:
陈忠伦,张杉杉,张献文,李肇坤,浦明军,都泓材,段劲峰
Publikováno v:
Zhongguo cuzhong zazhi, Vol 15, Iss 9, Pp 1010-1014 (2020)
Externí odkaz:
https://doaj.org/article/87724905f71a4d179c89b6512f2c2469