搜索结果: 1-15 共查到“period”相关记录597条 . 查询时间(0.031 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Bootstrap-based Statistical Analysis for Multi-period Data-driven Inventory Models with Seasonal Demand
自举 统计分析 季节性需求 多周期数据 驱动库存模型
2023/4/24
We study multi-period inventory control systems in which managers face seasonal demands with unknown distributions and make inventory decisions based on past demand data. It can be shown that a data-d...
Period (Per1、Per2、Per3)基因广泛分布于生物体中，对许多生物的昼夜节律、细胞周期、DNA损伤修复起重要的作用。目前许多研究结果显示，Period基因是一种抑癌基因，与乳腺癌的发生密切相关，其启动子高甲基化导致了其在乳腺癌中表达下调。本文就Period基因与乳腺癌关系的研究进展进行综述。
Eruption of Alaska's Okmok volcano linked to period of extreme cold in ancient Rome（图）
Eruption Alaska Okmok volcano linked period extreme cold ancient Rome
2020/7/10
An international team of scientists has found evidence connecting an unexplained period of extreme cold in ancient Rome with an unlikely source: a massive eruption of Alaska's Okmok volcano, located o...
Eruption of Alaska's Okmok volcano linked to period of extreme cold in ancient Rome（图）
Eruption Alaska Okmok volcano linked period extreme cold ancient Rome
2020/7/3
An international team of scientists has found evidence connecting an unexplained period of extreme cold in ancient Rome with an unlikely source: a massive eruption of Alaska's Okmok volcano, located o...
安徽三联学院外语学院美国文学课件Chapter 1 The Literature of Colonial Period
安徽三联学院外语学院 美国文学 课件 Chapter 1 The Literature of Colonial Period
2019/4/28
安徽三联学院外语学院美国文学课件Chapter 1 The Literature of Colonial Period。
西北师范大学美国文学通史课件 Chapter 26 Colonial Period。
西北师范大学美国文学通史课件 Chapter 25 Colonial Period。
西北师范大学美国文学通史课件 Chapter 24 Colonial Period。
西北师范大学美国文学通史课件 Chapter 23 Colonial Period。
西北师范大学美国文学通史课件 Chapter 22 Colonial Period。
西北师范大学美国文学通史课件 Chapter 21 Colonial Period。
西北师范大学美国文学通史课件 Chapter 20 Colonial Period。
西北师范大学美国文学通史课件 Chapter 19 Colonial Period。
西北师范大学美国文学通史课件 Chapter 18 Colonial Period。
西北师范大学美国文学通史课件 Chapter 17 Colonial Period。