摘要:
A method of forming a multiple level porous silicon substrate for semiconductor integrated circuits including anodizing non-porous silicon layers of a multi-layer silicon substrate to form multiple levels of porous silicon. At least one porous silicon layer is then oxidized to form an insulating layer and at least one other layer of porous silicon beneath the insulating layer is metallized to form a buried conductive layer. Preferably the insulating layer and conductive layer are separated by an anodization barrier formed of non-porous silicon. By etching through the anodization barrier and subsequently forming a metallized conductive layer, a fully or partially insulated buried conductor may be fabricated under single crystal silicon.
摘要:
A die holder comprises a die housing and a guide bar. The guide bar is designed to be retained within a Jacob's chuck retained within a lathe tailstock, and the die housing is slidably movable along the guide bar. A button die is retained within the die housing and with the guide bar aligned with the bar stock workpiece held by the lathe headstock, the die housing may be brought into engagement with the workpiece so that the button die engages the same. A user may then grasp the die holder while the headstock and workpiece are rotating so as to effect a cutting of threads. A reverse rotation of the headstock will result in a disengagement of the die holder.
摘要:
A rod arraying system for nuclear fuel rods or burnable poison rods. A support structure positions a consolidation canister vertically to receive the rods. A rod loading pattern provides a gap between rods to allow projections to hold each rod in position. One or more rod arraying devices positioned vertically along and inclined toward the canister provide a triangular pitch loading configuration. A guide assembly slidably mounted on the mounting base of the rod arraying device has two guide plates with scalloped edges. The guide plates are offset relative to each other with one being cycled back and forth by an air cylinder to allow individual loading of fuel rods one row at a time. The inclined weight of the guide plates keeps them in position against the rods to prevent unwanted shifting of rods during the loading operation.
摘要:
A connector is disclosed for coupling a coaxial cable to terminal pins on a printed circuit board to provide EMI/RFI shielding for a signal pin on the board. The insulator of the connector has a center contact cavity for receiving a socket contact which is connected to the center conductor of the coaxial cable. Longitudinal grooves in the outer surface of the insulator form outer contact cavities for ground terminal pins on the PC board. Integral resilient contact fingers formed on the shell extend inwardly into the outer cavities to engage the ground pins.
摘要:
In one embodiment, the limb protector is a protective gaiter which extends from the wearer's instep to just below his knee. A portion of the gaiter forms a completely closed pocket which contains an energy absorbing pad. The pocket and the pad are both configured so that the pad fits over and protects the wearer's shinbones, as well as covering many of the major bones and muscles of the wearer's leg. In another embodiment, the limb protector is an arm guard which extends from the wearer's elbow to his wrist. The arm guard includes a tapered sleeve-like element which is sufficiently elastic that it bears tightly about the arm of a user. A pocket is provided in the sleeve-like element to receive a protective pad. Elastic means are provided at both ends of the sleeve-like element to assist in preventing circumferential and longitudinal movement of the protector, even with violent movement of the user's arm.
摘要:
Sterile, injectable, physiologically acceptable solutions of an X-ray contrast agent are prepared by autoclaving a solution of a m-carboxamido-o-iodo-N-(.beta.-hydroxyalkyl)aniline X-ray contrast agent in the presence of a physiologically acceptable buffer system the pH of which decreases with increasing temperature.The presence of a temperature dependent buffer, preferably an amine, enables X-ray contrast agents to be sterilized by autoclaving without significant decomposition.Examples of the autoclaving processes are given and solutions for autoclaving containing a m-carboxamido-o-iodo-N-(.beta.-hydroxyalkyl)aniline X-ray contrast agent and a physiologically acceptable buffer system the pH of which decreases with increasing temperature are described and claimed.
摘要:
A conference arrangement for use in a pulse code modulated system including first and second control memories and a comparison logic circuit. Two words corresponding to two channels are read from information memory during each time slot and after proper comparison, the largest sample is transmitted to a third channel. Also included is a dial tone source for supplying dial tone to all terminations in the system by writing a time slot number assigned to the dial tone source and the respective ones of the channel memory words in the control memory associated with the channels.
摘要:
Embodiments of the present invention relate to methods and apparatuses for providing, processing, and/or servicing a mortgage loan having one or more exercisable options. For example, in some embodiments, a method is provided that includes storing, in a non-transitory computer-readable medium, one or more terms of an exercisable option, where the option is incorporated into a mortgage loan, where exercising the option results in one or more terms of the mortgage loan being modified, and where one or more terms of the option are based at least partially on a non-mortgage relationship between a borrower associated with the mortgage loan and a lender associated with the mortgage loan.
摘要:
An extendable/retractable ladder assembly includes a first column and a second column, the first column nesting in the second column, and a first rung coupled to, and extending from the second column. A ladder assembly bracket includes a collar portion, which extends about the second column, and a rung portion, which extends from the collar portion into the first rung. The collar portion may be gripped by a hand of an operator in order to position a thumb of the hand in engagement with a button to retract a locking pin of a latch assembly mounted within the rung portion of the bracket.
摘要:
Content returned by a search query is specific to a version of a product installed on or associated with the computer system requesting the search. Upon receipt of the search query, a search system accesses a persistent descriptor corresponding to a detected version of the product. The persistent descriptor may be a cookie file stored on the requesting computer system. A product detection module interrogates the computer system to identify the associated products, including the particular versions of those products. The search of a repository of general content related to the product is scoped using the persistent descriptor as a search filter in order to provide version-specific content.