摘要:
Disclosed is an aluminum electrolytic cell having profiled cathode carbon blocks structures, comprising a cell case, a refractory material installed on the bottom, an anodes and a cathode. The cathode carbon blocks include a profiled structure having projections on the top surface of the carbon blocks, that is, a plurality of projections are formed on a surface of the cathode carbon blocks. The aluminum electrolytic cell having the cathode structure according to the present invention can reduce the velocity of the flow and the fluctuation of the level of the cathodal molten aluminum within the electrolytic cell, so as to increase the stability of the surface of molten aluminum, reduce the molten lose of the aluminum, increase the current efficiency, reduce the inter electrode distance, and reduce the energy consumption of the production of aluminum by electrolysis. With the above configuration, compounds or precipitates of viscous cryolite molten alumina can be formed on the lower portion between walls protruding on the upper surface of the cathode, which can prohibit the molten aluminum from flowing into the cell bottom through the cracks and apertures on cathodes, so that the life of the electrolytic cell can be extended.
摘要:
Disclosed is an aluminum electrolytic cell having profiled cathode carbon blocks structures, comprising a cell case, a refractory material installed on the bottom, an anodes and a cathode. The cathode carbon blocks include a profiled structure having projections on the top surface of the carbon blocks, that is, a plurality of projections are formed on a surface of the cathode carbon blocks. The aluminum electrolytic cell having the cathode structure according to the present invention can reduce the velocity of the flow and the fluctuation of the level of the cathodal molten aluminum within the electrolytic cell, so as to increase the stability of the surface of molten aluminum, reduce the molten lose of the aluminum, increase the current efficiency, reduce the inter electrode distance, and reduce the energy consumption of the production of aluminum by electrolysis. With the above configuration, compounds or precipitates of viscous cryolite molten alumina can be formed on the lower portion between walls protruding on the upper surface of the cathode, which can prohibit the molten aluminum from flowing into the cell bottom through the cracks and apertures on cathodes, so that the life of the electrolytic cell can be extended.
摘要:
Described herein is a sensor comprising a porous substrate comprising xanthommatin or a salt or a crosslinked derivative thereof. The sensor can be fabricated by distributing xanthommatin or a salt thereof throughout the porous substrate, and optionally crosslinking the distributed xanthommatin or a salt thereof. The sensors can be incorporated into microfluidic devices and/or used as wearable or mountable solar radiometers and/or UVC radiation detectors.
摘要:
A biosensor that is configured to be implanted into a living being includes a light source configured to generate source light with a source light spectrum. The biosensor also includes plasmonic nano-antenna optically coupled to the light source to receive the source light and to emit light therefrom exhibiting a spectral signature of the plasmonic nano¬antenna. A bio-functionalized element joined to the plasmonic nano-antenna can receive a biomarker if available and effect a change in the spectral signature as a function of receipt or nonreceipt of the biomarker. A combination of the light source and nano-antenna can encode an optical communication signal into the emitted light and transmit the signal to a separate communication node. An optional detector can detect the emitted light and provide output indicative of receipt or nonreceipt of the biomarker, which can in turn be encoded into the communication signal for reporting to another node.
摘要:
Provided herein are methods and systems for recognizing an infant action in a recorded video. The infant action recognition technique includes performing pose estimation for each frame of the video, where pose corresponds to skeletal joint locations and joint angles. A posture classifier uses the pose estimations to classify each pose estimation as one of five postures and a probability value for the posture. The infant action recognition technique further includes using the identified postures for each frame and the probability values to determine a period of uncertainty that corresponds to a transition segment. The infant action recognition technique further includes using the first and last frames of the transition segment to distinguish start and end stable postures. The technique further includes performing filtering and majority voting to remove outlier posture classifications and determine an infant action label for the video based on the start and end stable postures.
摘要:
A radio access network (RAN) intelligent controller (RIC) and corresponding method may be implemented within RAN and in next-generation cellular networks to improve performance. The RIC comprises an interface to a RAN and further comprises a data-driven logic unit. The data-driven logic unit (i) produces, based on data received from the RAN via the interface, a representation describing a state of the RAN and (ii) based on the representation describing the state, instructs an action associated with at least one network element. The interface transmits a message based on the action instructed. The message is to be routed to the at least one network element. The representation is based on a context of the RAN. The message transmitted enabling re-configuration of the at least one network element. The re-configuration improves performance of the at least one network element within the context.
摘要:
4-phenyl-2-dimethylaminotetralin compounds, formulations, and methods are provided for selective modulation of serotonin 5-HT2A and 5-HT2C receptors without causing sedation at doses that are antipsychotic. Mechanisms for selective modulation are shown to involve inverse agonism at one or more of the 5-HT2A-2C receptors based on stereochemistry and substituents. The technology can be targeted to receptors inside or outside the central nervous system.
摘要:
A hybrid radiating element may comprise a dielectric substrate having a thickness, a top surface and a bottom surface, and an electrically conductive patch disposed on the top surface of the dielectric substrate. The hybrid radiating element may further comprise a graphene stub disposed on the top surface of the dielectric substrate. The graphene stub may be contiguous with, and electrically coupled to, the electrically conductive patch. The hybrid radiating element may further comprise an electrically conductive layer disposed on the bottom surface of the dielectric substrate. An array of hybrid radiating elements may be arranged in a grid pattern of M rows and N columns. A codebook set of biasing voltages may be arranged to drive the radiating elements in the array as a phase transformation matrix, thereby manipulating the reflection of an incoming electromagnetic wave.
摘要:
Provided herein are compounds that are able to bind metal ions (e.g., free metal ions or metal ions bound to low affinity ligands) in a sample or subject. Also provided herein are methods of using the compounds for chelating metal ions and for the treatment of diseases associated with abnormal levels of metal ions. Methods of preparing the compounds and pharmaceutical compositions are also provided.
摘要:
A radiation detection device includes a sensor having a first electrode and a second electrode. The first and second electrode each defines a plurality of fingers comprising a nanotube material, and the fingers of each electrode are interdigitated with one another. A voltage source may be configured to apply a voltage across the first and second electrodes. A chamber contains the sensor with a gas, one or more walls of the chamber enabling passage of radiation external to the chamber. A detection circuit detects radiation within the chamber based on a change in current across the first and second electrodes resulting from ionization of the gas by the radiation.