RAPID SHIELD TUNNELING IN METROPOLITAN OUTER-DISCHARGE PROJECT, TUNNEL CONTRACT NO. 1

The Shield Project

Nutritional management of dairy cows has advanced rapidly in the past few years. The days of balancing rations with a pen and a piece of paper, while referencing NRC standards, should be well behind us. However, for a number of reasons, dairy cattle nutrition remains an art as much as a science. As more is known, the boundaries of what needs to be known expand. There seems to be little question...

Spin-dependent tunneling in magnetic tunnel junctions

The phenomenon of electron tunneling has been known since the advent of quantum mechanics, but continues to enrich our understanding of many fields of physics, as well as creating sub-fields on its own. Spin-dependent tunneling in magnetic tunnel junctions (MTJs) has recently aroused enormous interest and has developed in a vigorous field of research. The large tunneling magnetoresistance (TMR)...

Application of artificial intelligence methods for estimation of maximum surface settlement caused by EPB shield tunneling

Maximum surface settlement (MSS) is an important parameter for the design and operation of earth pressure balance (EPB) shields that should determine before operate tunneling. Artificial intelligence (AI) methods are accepted as a technology that offers an alternative way to tackle highly complex problems that can’t be modeled in mathematics. They can learn from examples and they are able...

Social Yes; Contract No

Social contract theory is incoherent and it does not work as desired. Among the most obvious disanalogies is that contracts are enforced by a third party, commonly the state. There is no such external enforcer for a constitution. Contractarian theorists typically ignore all such issues and use the metaphor of contract very loosely to ground a claim that citizens are morally obligated to defer t...

ESTEC Contract No . 8696