Abstract: A data server having a plurality of hot replaceable processing unit modules. Each module includes a motherboard having plugged therein: a CPU; a main memory; an I/O adapter card, and an interconnect printed board, electrically connected to the motherboard. A backplane has a first connector adapted for coupling to a DC power supply. The interconnect printed circuit board has a DC to DC converter connected to a second connector adapted to mate with the first connector to enable the processing unit module to be hot plugged into, or removed from, the backplane. The backplane has formed thereon a strip transmission line adapted to provide an Ethernet bus for interconnecting a plurality of the modules. A cable management system for a cabinet used to house the module includes at least one vertically extending channel disposed in the cabinet and a fastener adapted to open and enable the a cable to be inserted into the channel and close to retain such cable within the channel.

Abstract: An electrical cabinet stores, or houses, a variety electrical components. The electrical components within the cabinet may be interconnected and may be connected to other electrical components external to the cabinet. The cabinet has an access door with a door stop that allows the door to be locked in an open position. The cabinet contains a workstation with a pivoting platform that supports an electrical component. The cabinet has an extendable bracket that extends allows an electrical component to be extended from the cabinet and removed by lifting the component in an upward direction. The cabinet has a board guide module that aligns a circuit board with an electrical connector in the cabinet. The cabinet has a bulkhead connector that reduces electromagnetic degradation in electrical cables that extend from the cabinet.

Abstract: A data server having a plurality of hot replaceable processing unit modules. Each module includes a motherboard having plugged therein: a CPU; a main memory; an I/O adapter card, and an interconnect printed board, electrically connected to the motherboard. A backplane has a first connector adapted for coupling to a DC power supply. The interconnect printed circuit board has a DC to DC converter connected to a second connector adapted to mate with the first connector to enable the processing unit module to be hot plugged into, or removed from, the backplane. The backplane has formed thereon a strip transmission line adapted to provide an Ethernet bus for interconnecting a plurality of the modules. A cable management system for a cabinet used to house the module includes at least one vertically extending channel disposed in the cabinet and a fastener adapted to open and enable the a cable to be inserted into the channel and close to retain such cable within the channel.

Abstract: A cabinet having a plurality of compartments adapted to have disposed in a corresponding one thereof one of a plurality of processing unit modules. Each one of the modules includes a case. The case has a motherboard mounting surface adapted to have mounted thereto one of a plurality of differently configured motherboards, each one of the differently configured motherboards having a different arrangement of a CPU, main memory and I/O adapted cards. The case also has a bulkhead mounting surface adapted to have mounted thereto one of a plurality of differently configured I/O bulkheads, each one of the differently configured bulkheads being configured for a corresponding one of the differently configured motherboards. The case has a fan mounting surface adapted to have mounted thereto one of a plurality of differently configured fan assemblies, each one of the differently configured fan assemblies being configured for a corresponding one of the differently configured motherboards.

Abstract: A cabinet having a plurality of compartments adapted to have disposed in a corresponding one thereof one of a plurality of processing unit modules. Each one of the modules includes a case. The case has a motherboard mounting surface adapted to have mounted thereto one of a plurality of differently configured motherboards, each one of the differently configured motherboards having a different arrangement of a CPU, main memory and I/O adapted cards. The case also has a bulkhead mounting surface adapted to have mounted thereto one of a plurality of differently configured I/O bulkheads, each one of the differently configured bulkheads being configured for a corresponding one of the differently configured motherboards. The case has a fan mounting surface adapted to have mounted thereto one of a plurality of differently configured fan assemblies, each one of the differently configured fan assemblies being configured for a corresponding one of the differently configured motherboards.

Abstract: A data server having a plurality of hot replaceable processing unit modules. Each module includes a motherboard having plugged therein: a CPU; a main memory; an I/O adapter card, and an interconnect printed board, electrically connected to the motherboard. A backplane has a first connector adapted for coupling to a DC power supply. The interconnect printed circuit board has a DC to DC converter connected to a second connector adapted to mate with the first connector to enable the processing unit module to be hot plugged into, or removed from, the backplane. The backplane has formed thereon a strip transmission line adapted to provide an Ethernet bus for interconnecting a plurality of the modules. A cable management system for a cabinet used to house the module includes at least one vertically extending channel disposed in the cabinet and a fastener adapted to open and enable the a cable to be inserted into the channel and close to retain such cable within the channel.

Abstract: A preparation-making ultracentrifuge is disclosed comprising a magnetic suspension and an electric motor, which are disposed within its casing, said magnetic suspension consisting of a permanent magnet with a magnetic circuit, the armature of said electric motor being made in the form of a sleeve fixedly secured to the centrifuge rotor is disclosed. Such construction of a preparation-making ultracentrifuge enables the rotor to be accelerated to the required speed within a comparatively short time period and allows a reduction in the weight of the electric motor armature.

Abstract: A heterogeneous catalyst for oxidation of propylene into propylene oxide in the liquid phase which is a carrier with active components supported thereon, the latter being oxides of scandium, yttrium, indium, gallium, thallium, or rare-earth elements of the lanthanum group, or mixtures of oxides of the above metals. In addition to with said active components, the catalyst can also contain silver, oxides of vanadium, molybdenum, tungsten, bismuth, manganese, or tantalum, or mixtures of the above active components.The method for preparing the catalyst consists in that the carrier is treated with an aqueous solution of a mineral acid or a mixture of mineral acids at 80.degree. to 100.degree.C, washed with water and dried at 300.degree. to 400.degree.C. The thus treated carrier is impregnated with aqueous solutions of salts of the corresponding metals. The impregnated carrier is treated at a temperature of 700.degree. to 800.degree.C.