Abstract: In one embodiment, a method (236) of harvesting thermal energy and water from air, the method comprising: receiving a flow of water vapor containing air over a first heat exchanging contactor contained in a chamber in a non-sealed state, the first heat exchanging contactor coated with an adsorbent material that adsorbs water vapor (238); desorbing water vapor from a second adsorbent-coated heat exchanging contactor contained in a chamber in a sealed state under a partial vacuum (240); exchanging thermal energy between the first heat exchanging contactor and the second heat exchanging contactor, wherein heat gained by heat of adsorption in the first heat exchanging contactor transferred to heat the second heat exchanging contactor to aid desorption, wherein heat lost due to the heat of desorption in the second heat exchanging contactor is transferred to cool the first heat exchanging contactor to aid adsorption (242); drawing a vacuum in the sealed chamber to pull air out and desorb, compress, and heat the wat

Abstract: A metal oxide semiconductor based power device in 4H-SiC semiconductor includes a semiconductor region, a drain electrode disposed adjacent a drain region and a source electrode disposed adjacent a source region which is disposed over a base region, and a gate electrode separated from the semiconductor region by silicon dioxide as a dielectric material. To avoid punchthrough, when the channel has a length of between i) about 0.5 ?m and about 0.4 ?m, ii) about 0.4 ?m and about 0.3 ?m, iii) about 0.3 ?m and about 0.2 ?m, or iv) about 0.2 ?m and about 0.1 ?m, the silicon dioxide has a corresponding thickness range of between i) about 5 nm to about 25 nm, ii) about 5 nm to about 20 nm, iii) about 5 nm to about 15 nm, or iv) about 5 nm to about 10 nm, respectively each base region at a predetermined doping profile.

Abstract: Systems and methods for secure digital asset transactions. An offline system includes a custodian computer, digital asset accounts accessible by the custodian computer and a centralized ledger maintained by the custodian computer. The custodian computer is in communication with public ledger computers of a public ledger, and receives transaction data associated with digital assets from among entity computers. Each account is prefunded with digital asset funds. The custodian computer monitors a transaction parameter of the transaction data and, in accordance with the monitoring, generates a transfer instruction indicating transfer of funds between the first and second accounts, updates the centralized ledger responsive to the transfer instruction, and transfers the funds between the first and second accounts, responsive to the transfer instruction. The transfer instruction remains offline and is not transferred to the public ledger.

Abstract: A system for accurate geospatial location and time transfer using radio transmissions without satellite signals. A position and timing measurement system uses standard uncorrelated radio broadcast signals, each of which transmits on an assigned frequency from a known position defined in latitude and longitude, and each of which transmits a modulated or unmodulated carrier signal. A reference unit at known fixed position receives the said standard broadcast signals in the vicinity, samples the frequencies and content values of their signals and broadcasts the said measured frequency and content data nearly simultaneously with a time mark representing the time of said measurement and further broadcasts its position in latitude and longitude. A mobile unit at an unknown position to be determined receives the said standard broadcast signals in the vicinity and measures the time of arrival of their broadcast, recording the time of said measurement.

Abstract: A system for accurate geospatial location and time transfer using radio transmissions without satellite signals. A position and timing measurement system uses standard uncorrelated radio broadcast signals, each of which transmits on an assigned frequency from a known position defined in latitude and longitude, and each of which transmits a modulated or unmodulated carrier signal. A reference unit at known fixed position receives the said standard broadcast signals in the vicinity, samples the frequencies and content values of their signals and broadcasts the said measured frequency and content data nearly simultaneously with a time mark representing the time of said measurement and further broadcasts its position in latitude and longitude. A mobile unit at an unknown position to be determined receives the said standard broadcast signals in the vicinity and measures the time of arrival of their broadcast, recording the time of said measurement.

Abstract: A power semiconductor device includes a silicon carbide substrate and has at least a first layer or region formed above the substrate. The silicon carbide substrate has a pattern of pits formed thereon. The power semiconductor device further includes an ohmic metal disposed at least in the pits to form low-resistance ohmic contacts. Each pit of the pattern of pits has a depth that extends short of the first layer.

Abstract: The present invention relates to fitness equipment. The fitness equipment includes an attachment and a support including discrete formations. A latching pin is provided for latching with the discrete formations to fasten the attachment to the support at different locations. Advantageously, the latching pin may lock the attachment in position without user interaction with the latching pin itself. The latching pin may be actuated by the user installing the attachment. The attachment may be installed less cumbersomely than the non-latching pin arrangement.

Abstract: A transistor with an emitter, base, and collector. The base includes a monocrystalline base layer. A sacrificial material is formed on the monocrystalline base layer. The sacrificial material is removed to expose a portion of the monocrystalline base layer. A base silicide includes a portion formed on the portion of the base monocrystalline base layer that was exposed by the removal of the sacrificial material.

Abstract: Disclosed is a SiGe, HBT, and method of manufacturing the same, comprising: an n-doped buried collector; a p-doped SiGe base layer, within a layer stack, the layer stack being over and in direct contact with the collector; an n-doped monocrystalline silicon emitter; an epitaxial silicon base contact layer over a second area of the layer stack; a polycrystalline silicon emitter contact layer; an oxide layer over a third area of the layer stack between the first and second areas, wherein the oxide layer and the n-doped monocrystalline silicon emitter are within a window, having sidewalls, in the epitaxial silicon layer; dielectric spacers on the sidewalls of the window and over the oxide layer, and providing electrical isolation between the epitaxial silicon layer and the polycrystalline silicon layer; the epitaxial silicon layer extending beneath the dielectric spacers on the sidewalls of the window.

Abstract: A system for accurate geospatial location and time transfer using radio transmissions without satellite signals. A position and timing measurement system uses standard uncorrelated radio broadcast signals, each of which transmits on an assigned frequency from a known position defined in latitude and longitude, and each of which transmits a modulated or unmodulated carrier signal. A reference unit at known fixed position receives the said standard broadcast signals in the vicinity, samples the frequencies and content values of their signals and broadcasts the said measured frequency and content data nearly simultaneously with a time mark representing the time of said measurement and further broadcasts its position in latitude and longitude. A mobile unit at an unknown position to be determined receives the said standard broadcast signals in the vicinity and measures the time of arrival of their broadcast, recording the time of said measurement.

Abstract: A system for accurate geospatial location and time transfer using radio transmissions without satellite signals. A position and timing measurement system uses standard uncorrelated radio broadcast signals, each of which transmits on an assigned frequency from a known position defined in latitude and longitude, and each of which transmits a modulated or unmodulated carrier signal. A reference unit at known fixed position receives the said standard broadcast signals in the vicinity, samples the frequencies and content values of their signals and broadcasts the said measured frequency and content data nearly simultaneously with a time mark representing the time of said measurement and further broadcasts its position in latitude and longitude. A mobile unit at an unknown position to be determined receives the said standard broadcast signals in the vicinity and measures the time of arrival of their broadcast, recording the time of said measurement.

Abstract: A method, a structure, and a computer system for mapping data fields. The exemplary embodiments may include, based on determining that a first data set and a second data set contain homogenous data, mapping at least one column of the first data set to at least one column of the second data set based on comparing at least one of relative column position and unique value sets. Based on determining that the first data set and the second data set contain heterogeneous data, the exemplary embodiments may include mapping the at least one column of the first data set to the at least one column of the second data set based on a difference between distribution signatures of unique value sets within each of the first data set and the second data set being less than a threshold.

Abstract: A method, apparatus, computer system, and computer program product for managing information. A set of bucket hashes and comparison information for a data record are identified by a computer system. The set of bucket hashes is generated from the comparison information, wherein the set of bucket hashes and the comparison information form a metadata record. A number of candidate metadata records in a metadata database is identified by the computer system using the set of bucket hashes, wherein the number of candidate metadata records comprises a set of candidate bucket hashes and candidate comparison information. An entity membership is identified by the computer system for the data record from a comparison of the comparison information in the metadata record with the candidate comparison information in the number of candidate metadata records.

Abstract: Disclosed is a method of manufacturing a silicon bipolar junction transistor device, the method comprising a sequence of steps including: depositing a polysilicon layer over at least a device region; depositing a dielectric layer over the polysilicon layer; patterning a photoresist layer and etching a window in the dielectric layer and the polysilicon layer through an opening in the photoresist layer; etching a SiGe layer stack through the window, to expose a silicon layer thereunder; patterning a further photoresist layer to expose at least the window; and doping the silicon layer by ion implantation through the window to form a base region. A corresponding BJT device is also disclosed.

Abstract: A closed system transfer device includes a first adaptor and a second adaptor that attach with one another in a coupled state to form a sealed fluid passage between two reservoirs. The first adaptor can be attached to a first reservoir, and the second adaptor can be attached to a second reservoir. One or both adaptors can include a septum that engages another septum during coupling and decoupling to prevent liquid or vapor from being released to the environment. The device can also include a vent line that equalizes pressure between the two reservoirs. The vent line can include at least one filter to filter gas in device. In addition, or in the alternative, the vent line can be connected in fluid communication with an inflatable membrane that stores gas inside the device and assists in equalizing pressure.

Abstract: A semiconductor device, such as a heterojunction bipolar transistor (HBT), may include an extrinsic base region an intrinsic base region, and a lateral base link region disposed between and in contact with each of the extrinsic base region and an intrinsic base region. The extrinsic base region, the lateral base link region, and a portion of the intrinsic base region each may be formed on a passivation layer disposed over an isolation region and a collector region of a substrate of the semiconductor device. The extrinsic base region and a first portion of the lateral base link region may be formed from polycrystalline semiconductor material. The intrinsic base region and a second portion of the lateral base link region may be formed from monocrystalline semiconductor material. The lateral base link region may be formed after formation of the extrinsic base region and the intrinsic base region.

Abstract: A semiconductor device includes a semiconductor substrate, a collector region having a first width formed within the semiconductor substrate and an intrinsic base region having a second width, disposed over the collector region, wherein the first width is greater than the second width. An extrinsic base region having an upper surface is formed over the collector region and electrically coupled to the intrinsic base region, wherein the extrinsic base region includes a monocrystalline region coupled to the intrinsic base region and a polycrystalline region coupled to the monocrystalline region. An emitter region is formed over the base region.

Abstract: A semiconductor device includes a semiconductor substrate, a collector region formed within the semiconductor substrate in a first semiconductor region having an upper surface and a collector sidewall, a base region disposed over the collector region, a seed region formed over the semiconductor substrate and coupled to the semiconductor substrate outside the base region, an extrinsic base region having an upper surface and formed over the seed region and electrically coupled to the base region, and an emitter region formed over the base region.

Abstract: An air treatment system includes germicidal air circulation unit with a germicidal chamber with disinfection stages or channels each having UVC LED light engines therein. The air treatment system includes an intake port, an exhaust port and a circulation fan that pushes or pulls air into and through the germicidal chamber. The germicidal chamber can include baffle structures and can contain a metal-oxide material and/or a metal-sulfide material. The air treatment system includes a control unit and sensor that regulates air flow provided by the circulation fan and/or the fluence or power levels of the UVC LED light engines.

Abstract: A method for forming a transistor with an emitter, intrinsic base, and collector. The base includes a semiconductor layer doped with a conductivity dopant to provide for a lower resistivity path to the intrinsic base. After the formation of a layer over a substrate, an emitter window opening is formed in the layer. The semiconductor layer is formed through the opening by a deposition process. A portion of the semiconductor layer is then removed. An emitter electrode is formed that includes at least a portion located in the opening. A remaining portion of the semiconductor layer is in a conductive path to the intrinsic base.