摘要:
A process for preparing ultra-high molecular weight poly(alpha-olefin) (UHMWPO) multi-filament yarns having improved tensile properties at higher productivity. The process includes drawing a solution yarn, then drawing a gel yarn and then drawing a dry yarn continuously in sequence to form a partially oriented yarn, winding up the partially oriented yarn, unrolling the yarn, drawing the partially oriented yarn to form a highly oriented yarn, cooling the highly oriented yarn under tension and winding up the highly oriented yarn.
摘要:
Disclosed are apparatus and methods for embodiments for efficiently and flexibly controlling hardware devices in a semiconductor processing system are provided for use in a distributed control arrangement. In general, the distributed arrangement includes at least one upper-level controller that is configurable with a computer program sequence of instructions for controlling one or more hardware devices of a processing tool. The hardware devices are controlled through one or more lower-level controllers. Prior to execution of the program sequence of the upper-level controller, at least one instruction of this program is pre-compiled so as to translate the instruction for execution by a selected lower-level controller and to add an at least one interlock check to such pre-compiled instruction and make the translated instruction accessible to at least one lower-level controller. The interlock check specifies one or more condition(s) for the selected lower-level controller to execute the pre-compiled instruction. Any number of instructions of the upper-level controller may be translated for use by any number of selected lower-level controllers, where some of the translated instructions include one or more interlock checks.
摘要:
Disclosed are apparatus and methods for embodiments for efficiently and flexibly controlling hardware devices in a semiconductor processing system are provided for use in a distributed control arrangement. In general, the distributed arrangement includes at least one upper-level controller that is configurable with a computer program sequence of instructions for controlling one or more hardware devices of a processing tool. The hardware devices are controlled through one or more lower-level controllers. Prior to execution of the program sequence of the upper-level controller, at least one instruction of this program is pre-compiled so as to translate the instruction for execution by a selected lower-level controller and to add an at least one interlock check to such pre-compiled instruction and make the translated instruction accessible to at least one lower-level controller. The interlock check specifies one or more condition(s) for the selected lower-level controller to execute the pre-compiled instruction. Any number of instructions of the upper-level controller may be translated for use by any number of selected lower-level controllers, where some of the translated instructions include one or more interlock checks.
摘要:
A robust process for the continuous preparation of solutions of high molecular weight UHMW PO that is capable of producing strong materials at high production capacity, is conservative of capital and energy requirements, and the articles made therefrom.
摘要:
Cellular transcription is modulated by increasing or decreasing the amount of active HEXIM1 in the cell. The methods are applied to the treatment of HIV infection and cardiac hypertrophy. Assays using reconstituted 7SK:P-TEFb snRNP screen for agents that modulate HEXIM1-P-TEFb binding.
摘要:
Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.
摘要:
Cellular transcription is modulated by increasing or decreasing the amount of active HEXIM1 in the cell. The methods are applied to the treatment of HIV infection and cardiac hypertrophy. Assays using reconstituted 7SK:P-TEFb snRNP screen for agents that modulate HEXIM1-P-TEFb binding.
摘要:
Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.
摘要:
An undrawn yarn is produced at increased quench delay and increased take-up speed to achieve improved ultimate elongation at a given crystallinity. Particularly preferred aspects include products comprising such yarns and methods for producing same.
摘要:
A calibration fixture for an MWD logging tool consists of a plurality of concentric co-planar conductive calibration loops are mounted around the logging tool mandrel coaxially with the usual transmitter(s) and receivers that are mounted on the tool. The calibration loops are terminated with a multiple-tap impedance quantizing means for discretely varying the impedance of the calibration loops. When a transmitter is activated to emit an electromagnetic signal, the calibration loops are excited to reradiate a portion of that signal into the receivers with an intensity that is a function of the loop impedance thereby to simulate the effects of formations having known resistivities.