搜索结果: 1-15 共查到“理学 Supply”相关记录63条 . 查询时间(0.065 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Review supply chain resilience and research prospect
供应链 弹性 研究前景 灾害影响分析 定量经济模型
2023/4/18
In this paper, we review the different dimensions of supply chain resilience and propose that supply chain resilience should be measured in a more integrated way. We review the quantitative economic m...
Bee competitive: Research reveals the impact of natural selection on nectar supply and demand
natural selection nectar supply and demand seasonal imbalances
2021/8/6
Theoretical research indicates that natural selection will increase existing seasonal imbalances between the supply of nectar from flowers and the demand from bees and other insects.
Phosphorus supply pathways and mechanisms in shallow lakes with different regime
lakes carbon nitrogen (Fe(OOH)~P
2021/7/27
In order to better understand the pathways and mechanisms of phosphorus (P) supply under different regimes, 12 sampling sites from 4 basins of 2 lakes were studied seasonally from October 2017 to July...
2017年不确定性和破坏性环境下的供应链规划专题会议（Special Session on Supply Chain Planning On Uncertain and Disruptive Environments）
2017年 不确定性和破坏性环境下的供应链规划 专题会议
2017/12/20
This special session deals with the problem of Supply Chain Planning evolving on uncertain and disruptive environments. Supply Chain, viewed as a network of facilities, is a complex system highly infl...
More than half of world's fresh water supply warming rapidly（图）
More than half of world fresh water warming rapidly
2017/11/23
More than half of the world's fresh water supply is warming rapidly, according to an NSF- and NASA-funded study.Using satellite data and ground measurements collected from 235 lakes on six continents ...
深圳大学管理学院运筹学课件 DEMAND and SUPPLY MODELLING。
New Study Suggests the United States’ Power Supply Has the Capacity to be More Adaptable to Climate Change than Previously Predicted
the United States Power Capacity More Adaptable Climate Change Previously Predicted
2017/11/23
Climate change scientists warn that the continued burning of fossil fuels is likely to cause major disruptions to the global climate system leading to more extreme weather, sea level rise, and biodive...
Those who crave brownies or hot cocoa may be happy to hear that heroes too small to be seen may help to protect the world’s chocolate supply. Scientists at the Smithsonian Tropical Research Institute ...
Silver nanoparticle concentration too low to be harmful in water supply,paper finds
Silver nanoparticle concentration too low harmful water supply paper finds
2016/11/4
Silver nanoparticles have a wide array of uses, one of which is to treat drinking water for harmful bacteria and viruses. But do silver nanoparticles also kill off potentially beneficial bacteria or c...
Origin of Earth’s oceans: An assessment of the total amount, history and supply of water
origin of water age of oceans water in Earth planet formation snow line
2017/4/10
The presence of water on Earth has played important roles in shaping the solid regions of the planet as well as in the
origin and evolution of life. This paper addresses three fundamental aspects of ...
Supply-Side Ecology and the Response of Zooplankton to Climate-Driven Changes in North Atlantic Ocean Circulation
Response of Zooplankton Supply-Side Ecology
2015/7/29
Recent findings from oceanographic field studies conducted on both sides of the North Atlantic have dramatically altered our view of how zooplankton populations respond to climate-driven changes in oc...
A Collaborative Web Service Platform for AEC Supply Chain
AEC supply chain information sharing online collaboration web services model
2015/6/30
Information sharing within and across companies is crucial for an effective supply chain. For the AEC industry, however, information sharing is difficult due to the highly fragmented and temporary, pr...
Distribution and supply mechanisms of high uranium concentration in the rivers of Okinawa Island, Japan
uranium river Okinawa Island guideline value supply mechanism
2017/4/10
Uranium concentrations in the rivers of Okinawa Island, Japan were determined in this study. Most rivers in the
southwestern area of the island showed high U concentrations, the highest of which was ...
The University of Queensland has suspended from 21 February the supply of pigs to market from its Gatton piggery while it investigates concerns about possible contamination.
Iron, phosphorus, and nitrogen supply ratios define the biogeography of nitrogen fixation
Iron phosphorus nitrogen fixation
2014/4/2
We present a unified conceptual framework describing the competition between diazotrophs and non–
nitrogen-fixing marine plankton and their interaction with three essential nutrient elements: nitroge...