An apparatus and method perform supersonic cold-spraying to deposit N and P-type thermoelectric semiconductor, and other polycrystalline materials on other materials of varying complex shapes. The process developed has been demonstrated for bismuth and antimony telluride formulations as well as Tetrahedrite type copper sulfosalt materials. Both thick and thin layer thermoelectric semiconductor material is deposited over small or large areas to flat and highly complex shaped surfaces and will therefore help create a far greater application set for thermoelectric generator (TEG) systems. This process when combined with other manufacturing processes allows the total additive manufacturing of complete thermoelectric generator based waste heat recovery systems. The processes also directly apply to both thermoelectric cooler (TEC) systems, thermopile devices, and other polycrystalline functional material applications.

A steering wheel structure configured to control cooling and heating, the steering wheel structure including: an inner layer forming a rim of the steering wheel; and an outer layer surrounding at least a part of the inner layer; wherein the outer layer including, an outer circumferential part forming at least a part of outer circumference of the outer layer; at least one gap disconnecting the outer circumferential part; and a cold-hot adjusting part formed in the at least one gap; wherein the cold-hot adjusting part has a lower heat capacity and a higher thermal conductivity than the outer circumferential forming part.

The present disclosure provides a laser device, where the laser device comprises a substrate, a seed laser disposed on the substrate, and a radiofrequency coil. Two connection ends of the radiofrequency coil are connected with corresponding pin ends of the seed laser, respectively.

Disclosed is a server rack system within an enclosed building and a process for directing air through a server facility. Air is channeled from conduit to a server rack assembly and then through a closed loop back again into the server rack assembly from channeling exhaust air through conduit away from the server rack assembly.

Disclosed is a server rack system that is composed of and/or constructed from cartridges adapted to retain computing equipment. The cartridge dimensions can very to retention-oriented embodiments that hold and allow air passage, to smart cartridges that have logic capabilities and internal components that control airflow passing therein.

Disclosed is a computer retention system composed of cartridges that permit advantageous control of airflow beyond the cartridge. Smart cartridges permit shut-off, increase, or some fractional delivery of airflow to computer equipment.

Disclosed is a server rack system within an enclosed building and a process for directing air through a server facility. Air is channeled within a server rack assembly and then through a closed loop back again into the server rack assembly. Impediments may control the degree of airflow availability.

Disclosed is a computer having airflow apertures positioned efficiently advantageously throughout a computer body. Peripheral airflow apertures are emphasized, as well as minimizingand in some embodimentseliminating apertures elsewhere on the computer body. Plugs can be applied to computer bodies lacking such advantageous original construction.

Disclosed is system, method, and rack stand portion for the advantageous cooling of computer equipment. The rack stand includes a hollow body that may be formed of cartridges. Gas from an airflow source is guided into the rack stand body and then into a sealed case of the computer equipment. Air flow is then guided out of the computer equipment for recirculation, exhaust, or other purpose.

Disclosed is system, method, and rack stand portion for the advantageous cooling of computer equipment. The rack stand includes a hollow body that may be formed of cartridges. Gas from an airflow source is guided into the rack stand body and then into a sealed case of the computer equipment. Air flow is then guided out of the computer equipment for recirculation, exhaust, or other purpose.