25,870 research outputs found
Optically activated magnetic recording tape
Optically activated data storage medium visually and electromagnetically reproduces a recorded signal. In an electric field, particles in heat-fluidized thermoplastic layer form a visible image of the recorded signal. Refluidizing the thermoplastic layer erases the signals. Very high data packing densities are achieved
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A Theoretical Model for Optimization of SALD Parameters
This paper addresses the need to conduct theoretical work concerning an economical way
of Solid Freeform Fabrication rendering by using selective Area Laser Deposition (SALD). The
part in SALD rendering process is formed layer by layer that, in turn, is composed of stripes of
material produced in the path of a laser. There are three situations in which such a stripe can be
rendered: a) alone, b) with one neighbor on one side, and c) with neighbors on both sides.
Residual thermal stresses in the part are expected to be affected by how a stripe is rendered.
Furthermore, the residual thermal stress and the mechanical property of the part are also dictated
by other processing variables such as laser scanning patters, laser input power, scanning speed,
scanning spacing, deposition temperature, gas precursor pressure, intrinsic thermal conductivity
and mechanical properties of the rendered material. A theoretical approach is proposed to address
the minimization of residual thermal stresses and rendering times and the maximization of the
strength of the part. It is proposed that such multiple optimizations that are dictated by many
decision variables can be solved by minimizing and/or maximizing object functions dePending on
the design criteria for each attribute of the rendered partMechanical Engineerin
Inverse Scattering and Acousto-Optic Imaging
We propose a tomographic method to reconstruct the optical properties of a
highly-scattering medium from incoherent acousto-optic measurements. The method
is based on the solution to an inverse problem for the diffusion equation and
makes use of the principle of interior control of boundary measurements by an
external wave field.Comment: 10 page
Person v. Potential: Judicial Struggles to Decide Claims Arising from the Death of an Embryo or Fetus and Michigan\u27s Struggle to Settle the Question
“Death is well understood; it’s life that isn’t.” We recognize death, but state by state, courts struggle to understand life when called on to determine whether their states’ wrongful death acts apply after the death of an embryo or fetus. These struggles arise because, for the most part, state legislatures have failed to clarify whether a cause of action may be maintained under their wrongful death acts for the death of an embryo or fetus. This failure has lead to inconsistent and unfair results, often allowing the tortfeasor to benefit from causing the greater harm of death, when the tortfeasor would have been liable if only injury had resulted.
In Part II of this article, the history and purpose of wrongful death acts are examined. Part III examines, state by state, the inconsistent results caused by legislative failure to act. Part IV focuses on the inconsistent results within one jurisdiction, Michigan, and examines that state’s legislative attempt to provide the guidance called for in the article. Part V suggests a redrafted version of the Michigan statute, to clearly provide the guidance needed by the court. Finally, Part VI challenges state legislatures to respond to the problem by passing legislation that clarifies and directs the courts how to understand life, as it applies to embryonic or fetal death
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