Abstract: A biohydrogen production device of corn stalks based on synchronous saccharification and fermentation and a hydrogen production method thereof are provided. The biohydrogen production device has a vertical fermenter, an irradiation pretreatment unit, an enzymolysis saccharification unit, a dark fermentation unit, a photofermentation unit, a power supply box and a hydrogen storage tank. The method and device utilize the high specificity of different microorganisms to the substrate to combine the dark fermentation and the process of photofermentation hydrogen production. The method and device can be used for the preparation of hydrogen.

Abstract: A lens module, constructed to include all necessary filters but retaining its wide-angle characteristic and short focal length, is comprised of a housing, a cover plate, and a filter switcher. The housing and the cover plate form a receiving cavity, the cavity containing the filter switcher. The filter switcher includes holder, two mounting frames, two first adhesive layers, and two filters, and is of minimal thickness. The two first adhesive layers fix the filters on the two mounting frames. An enlarged installation space within the lens module is not required. The disclosure also relates to an electronic device using the lens module.

Abstract: A high-load organic wastewater dark fermentation biohydrogen production device and a hydrogen production method are provided. An exhaust port of the production device is communicated with a gas collection region through a gas pipe; a return inlet is arranged at a bottom; a baffle plate is arranged in a two-phase separation device; the baffle plate has a helical shape that makes influent water form a helical centripetal water flow path; one end of an inert gas communicating pipe is connected with an air hole at a bottom of the gas collection region; the other end of the inert gas communicating pipe is communicated with an air intake disc; the inert gas communicating pipe is provided with a connecting hole and an air pump; and the gas collection region is connected with a gas buffer tank and a hydrogen storage tank in sequence. A two-phase separation unit is also provided.

Abstract: Embodiments of this application provide an information processing method, and relate to the field of information and communication technologies. An electronic device includes a first memory and a second memory. When loading application information, the electronic device obtains an attribute of the application information; if the attribute of the application information is a first attribute, writes the application information into the first memory, or encrypts the application information and writes the encrypted application information into the second memory, where the first memory is disposed in a processor, and the second memory is disposed independently of the processor; and if the attribute of the application information is a second attribute, writes the application information into the second memory. Embodiments of this application further provide an electronic device, a chip, and a computer-readable storage medium.

Abstract: The present disclosure discloses a method for preparing a green slow-release preservative paper used for fruit and vegetable preservation. The method includes: step 1, preparing a core paper loaded with biological preservative; step 2, preparing a base membrane loaded with fruit and vegetable respiration inhibitor; and step 3, heating and pressing the core paper loaded with biological preservative and the base membrane loaded with fruit and vegetable respiration inhibitor to obtain the green slow-release preservative paper. The present disclosure uses a biological preservative as a main material and an absorbent paper or a non-woven fabric as an auxiliary material to prepare the green slow-release preservative paper used for fruit and vegetable preservation through a layer-by-layer film covering method.

Abstract: An inverter and an inverter system. The inverter includes an inverter module and a power distribution unit; the inverter module has a first direction and a second direction which are perpendicular to each other; the inverter module is provided with a direct current input end and an alternating current output end, and the direct current input end and the alternating current output end are distributed on two sides of the inverter module in the first direction; the power distribution unit includes a direct current module and an alternating current module, and the direct current module and the alternating current module are provided at a same end of the inverter module in the second direction; the direct current input end faces the power distribution unit; the alternating current output end faces the power distribution unit; the direct current module is electrically connected to the direct current input end; the alternating current module is electrically connected to the alternating current output end.

Abstract: Disclosed are a resource management method and a computing system. The resource management method comprises: creating a first user application resource library, and when a first user operates a first application, allowing the first application to access the first user application resource library; creating a third user application resource library, and when the first user operates a second application, allowing the second application to access the third user application resource library; and in response to a management operation performed by the first user on resources in the first user application resource library, directly or indirectly transmitting the resources in the first user application resource library to the third user application resource library. Independent resource libraries are configured according to applications operated by users, such that both resource isolation and resource sharing are realized.

Abstract: Provided are a photovoltaic power generation system and a fault protection method and device thereof, a combiner box, and an inverter, which relate to the technical field of photovoltaic power generation. The system includes a power conversion unit, a multi-pole linked switch, and N photovoltaic strings. The method includes: controlling, in response to a fault in the photovoltaic power generation system, a switch tube in the power conversion unit to short-circuit the positive input terminal and the negative input terminal of the power conversion unit, and controlling the multi-pole linked switch to be disconnected, such that at most three of the N photovoltaic strings are connected in parallel.

Abstract: The present application provides a method of training a deep learning model. A specific implementation solution of the method of training the deep learning model includes: determining, according to first training data for a current training round, a first target parameter required to be written into a target memory in a first network parameter required by an embedding of the first training data, wherein the target memory is a memory contained in a target processor; determining a remaining storage slot in the target memory according to a first mapping relationship between a storage slot of the target memory and a network parameter; and writing, in response to the remaining storage slot meeting a storage requirement of the first target parameter, the first target parameter into the target memory so that a computing core contained in the target processor adjusts the first network parameter according to the first training data.

Abstract: A processing method for secure access to a resource access server connected to one or more resources by means of a resource client comprises: registering the resource and determining a resource identifier corresponding to the resource; receiving a resource confirm request carrying the resource identifier from the resource client; at least confirming that the resource identifier is valid, and in response to the resource confirm request, providing a resource access channel connection message to the resource client; receiving a resource access request of a user for accessing a target resource; in response to a resource access channel establishment request initiated by the resource client according to the resource access channel connection message, establishing a resource access channel between the resource access server and the resource client; and in response to the resource access request, allowing access to the target resource by means of the resource access channel.

Abstract: A system may create a localized machine learning model including one or more customized local parameter values using a global model and variance data. The localized machine learning model may be used by a device or cohort of devices to perform evaluations of data. The localized model may be trained based off a global model that is adjusted and then trained a certain number of steps, where the number of steps is based at least in part on the variance data.

Abstract: A method and device for determining a daily peak load regulation capacity of a hydropower station are provided. The method includes: defining a concept of the daily peak load regulation capacity and setting two schemes, namely, finding an amplitude according to time and finding time according to an amplitude; distinguishing constraint conditions for the hydropower station in different periods; according to actual operation of the hydropower station, setting a daily average inflow and a daily initial water level, and determining a typical daily load process of peak load regulation of the hydropower station by analyzing an actual daily load of a power grid in a period; setting a peak load duration or a peak load regulation amplitude during typical load operation of the hydropower station; iteratively calculating a maximum peak load regulation amplitude or a maximum duration under this boundary condition to obtain the daily peak load regulation capacity.

Abstract: This disclosure describes one or more embodiments of methods, non-transitory computer-readable media, and systems that utilize computing models to intelligently match provider devices and requester devices in response to event-trigger transportation requests. In particular, in one or more embodiments, the disclosed systems utilize global positioning information to monitor requester device proximity to pickup locations and generate timely transportation matches for event-trigger transportation requests. For example, the event-trigger transportation matching system matches requester devices and provider devices based on the satisfaction of a location trigger; or, conversely, the event-trigger transportation matching system delays matching processes for provider devices based on a location trigger remaining unsatisfied.

Abstract: The present disclosure relates to information processing systems, methods, devices, and storage mediums. In one example method, a first node stores a private key and public object information, and a second node stores information obtained by encryption based on a public key of the first node. When feature information of an object is not sent out from a client, a plurality of nodes interact with each other based on an information mapping relationship.

Abstract: A system may create a localized machine learning model including one or more customized local parameter values using a global model and variance data. The localized machine learning model may be used by a device or cohort of devices to perform evaluations of data. The localized model may be trained based off a global model that is adjusted and then trained a certain number of steps, where the number of steps is based at least in part on the variance data. The variance data may include variance data from other device cohorts which is received from a remote device, which can also re-train the global model using the variance data and/or the localized machine learning model(s).

Abstract: An inverter module and an inverter are provided. The inverter module includes at least two capacitors and at least one power unit group. The at least one power unit group each comprises one or more power units. The capacitors are connected in series and parallel to form a capacitor head terminal, a capacitor end terminal and a capacitor midpoint, where capacitance between the capacitor midpoint and the capacitor head terminal is the same as capacitance between the capacitor midpoint and the capacitor end terminal. Positive poles of DC sides of the power units are equidistantly connected with the capacitor head terminal, negative poles of the DC sides of the power units are equidistantly connected with the capacitor end terminal, and midpoints of the DC sides of the power units are equidistantly connected with the capacitor midpoint.

Abstract: Provided herein are methods and systems for analyzing a sample of a subject by using a trained algorithm to evaluate and classify the sample as indicating a risk of having or developing cancer.

Abstract: The present application discloses a multi-channel grid-connected power generation system and a control method therefor, which lowers the system cost while reducing no-load losses of all step-up transformers. Multi-channel energy conversion devices in the system are each connected in parallel, by means of a step-up transformer, to the same collector line, one end of the collector line is connected to the grid by means of a switch device, and the on-off switching of the switch device is controlled by a control unit. The control unit sends a switch-off command to the switch device when same has determined that all of the energy conversion devices have entered a non-operating state.