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DOE将提供1.22亿美元用于稀土和关键矿产研究(图)
美国能源部 DOE 稀土 矿产
2020/11/12
2020年9月22日,美国能源部(DOE)宣布,根据碳矿石、稀土和关键矿产(CORE-CM)计划的资助机会公告(FOA),将为美国盆地提供1.22亿美元资助用于成本分摊。该FOA下的项目将由私营企业、大学、州、地方和联邦政府人员组成的联合团队实施。他们将设计一个多年的计划,分三个阶段实施。
钻速是衡量掘进机工作性能的关键参数之一。采用DOE建模技术,以钻速作为目标变量,以刀盘扭矩、千斤顶推力、刀盘转速、螺旋机转速等主控参数作为设计变量建立二次回归函数,得出钻速的预测函数。通过拟合判定系数、修正判定系数和均方根差对回归函数的误差进行判定,研究不同的样本数据采点方法对拟合精度的影响。构建优化数学模型,采用二次规划算法求解不同样本数目下的极值,有效地实现了掘进性能的提升。
以提高增压器涡轮等熵效率为目标,提出使用基于试验设计(Design of experiment, DoE)的优化设计方法,进行涡轮叶片优化设计研究。对现有增压器涡轮选取合理的特征型线方案,建立了涡轮参数化模型;在现有增压器的基础上建立了计算流体力学(Computational fluid dynamics, CFD)仿真模型,并通过涡轮热吹试验台架验证了模型的可靠性;选取14个描述叶形的叶片截面控...
Design of DOE-based Automatic Process Controller with Consideration of Model Uncertainties
Automatic Process Controller Model Uncertainties
2015/3/18
This paper developed a DOE-based
automatic process control scheme considering both
observation and modeling uncertainties. The
simulation demonstrates that considering the
uncertainties, automatic...
Evaluation of the US DOE's conceptual model of hydrothermal activity at Yucca Mountain, Nevada
the US DOE's conceptual model hydrothermal activity Yucca Mountain Nevada
2014/12/19
A unique conceptual model describing the conductive heating of rocks in the thick unsaturated zone of Yucca Mountain, Nevada by a silicic pluton emplaced several kilometers away is accepted by the US ...
Influence of Rabbit Sire Genetic Origin, Season of Birth and Parity Order on Doe and Litter Performance in an Organic Production System
Rabbit Organic Production System Reproduction Genetic Origin
2016/5/11
The aim of this study was to compare both the performance of litters derived from two sire genetic origins (SGO), Vienna Blue (VB) and Burgundy Fawn (BF), along successive seasons of birth (SB; winter...
Concrete Security for Entity Recognition:The Jane Doe Protocol(Full Paper)
Concrete Security Entity Recognition Jane Doe Protocol
2009/6/12
Entity recognition does not ask whether the message is from
some entity X, just whether a message is from the same entity as a previous
message. This turns turns out to be very useful for low-end de...
MIT will be home to two of 46 new multimillion-dollar Energy Frontier Research Centers (EFRCs), the White House announced this week.The EFRC program plans to provide $19 million to fund the Center for...