Abstract: A method and an apparatus for three-dimensional reconstruction. Images of the reconstruction space captured by N cameras are acquired as N current images in response to an object entering the reconstruction space. Foreground-background differences of all position points in the N current images are obtained according to the N current images and N corresponding initial background images captured by the N cameras when the reconstruction space is empty. Corresponding foreground-background differences of position points in the N current images are fused according to a corresponding relationship between all position points in the N current images and all position points in the reconstruction space, to obtain a foreground-background difference of each position point in the reconstruction space.

Abstract: A structure of a two-dimensional material-based device having an air-gap and a method for preparing same comprises a substrate, a gate, an dielectric, a two-dimensional material-based film, and source and drain electrodes; the air-gap is formed between the two-dimensional material-based film and the side wall of the dielectric on the gate, or the air-gap is formed between the dielectric and the gate; two-dimensional material-based devices of the above structure utilize the ductility and flexibility of two-dimensional materials to reduce the coupling between the gate and the source/drain electrodes, thereby reducing the parasitic capacitance and the circuit delay; also, the structure ensures that a part of the contact region of the source and drain electrodes with the two-dimensional material can be controlled by the gate, and can thus avoid the reduction in electrical properties and keep a low resistance of the device.

Abstract: Apparatus, methods, and systems for transducing measurements from medium of interest. One non-limiting example is in planta monitoring of plants. In one aspect, a micro- or nano-scale probe body includes one or more microprobes (e.g. microneedles or waveguides) to access desired plant tissue, and one or more microsensors on the probe body. A microcircuit on or in the probe body transduces relevant measurements from the microsensor(s). An output interface allows storage, communication, or transfer of the transduced measurement for further use. Non-limiting examples are processing into estimations of chemical concentrations or the like for biochemical sensing. As such, if used as in planta sensors, they can be minimally invasive and cost effective for both single use and use in sets for plural plants with one central station.

Abstract: This disclosure relates to methods, non-transitory computer readable media, and client devices that automatically initiate a wireless network connection (e.g., a pairing) with an auxiliary computing device based on recurring detection of a wireless broadcast signal from the auxiliary computing device. Upon detecting a wireless broadcast signal for an auxiliary computing device satisfying a signal-strength threshold at multiple times or locations, for example, the disclosed client devices can automatically initiate a wireless network connection (e.g., a pairing) with the auxiliary computing device. By automatically initiating a wireless connection with such an auxiliary computing device, the disclosed client devices obviate inefficient user interactions conventional computing devices use to establish a pairing, facilitate pairings with auxiliary computing devices for unsavvy technology users, and avoid unsecure wireless connections that may compromise data on the disclosed provider client devices.

Abstract: The use of phosphatidylserine as a target for treating inflammatory bowel disease. Phosphatidylserine can be used as a marker of inflammatory bowel disease and used for drug screening. Annexin A5 can be traced by phosphatidylserine in the extracellular membrane and indicate the location of lesions and extent of inflammatory bowel disease, and can be used to treat inflammatory bowel disease. Better anti-inflammatory effects can be generated by mutating Annexin A5.

Abstract: The present application relates to the field of XRF spectra analysis, and discloses a background reduction method for soil XRF spectra based on the XRF-EGAN, which is based on the design mode of GAN model, includes constructing a generator of the model by using a one-dimensional fully convolutional network layer and a residual connection, constructing a discriminator of the model by using one-dimensional convolution and a fully connected layer, and training the XRF-EGAN model by using an adversarial training mode, and then obtaining the trained generator and discriminator, and the generator is a soil XRF background reduction model, which in turn improves the correlation between the net peak area and the content of element of soil XRF, and thus enhances the accuracy of quantitative analysis of element based on XRF spectra.

Abstract: Provided herein is technology relating to electrochemical detection of analytes and particularly, but not exclusively, to a double junction reference electrode, methods of using a double junction reference electrode, handheld or robotically manipulable apparatuses comprising a double junction reference electrode, and systems comprising a double junction reference electrode.

Abstract: Examples described herein relate to selecting a compute node to execute the function based on latency of retrievals of function data blocks, wherein the function data blocks comprise at least a portion of an image of the function and the function data blocks are stored among two or more tiers of storage. In some examples, a latency of retrievals of function data blocks is based on storage of the function data blocks in devices of one or more storage tiers and retrieval latency to a memory utilized to launch the function.

Abstract: Examples described herein relate to a system that prior to execution of a virtualized execution environment on a compute node, store at least one image block into at least one tier of storage of a hierarchical storage system based on priority of the at least one image block. In some examples, the at least one image block comprises at least one portion of an image of the virtualized execution environment.

Abstract: It is a two-dimensional semiconductor-metal ohmic-contact structure, a preparation method therefor and use thereof, wherein the ohmic-contact structure comprises two-dimensional semiconductor having semimetal antimony or an alloy containing semimetal antimony deposited thereon to form an ideal van der Waals interface with strong orbital hybridization, and semimetal antimony is deposited on the two-dimensional semiconductor by high-vacuum evaporation; which is applied to semiconductor devices and realizes ultralow contact resistance between the metal and the two-dimensional semiconductor and significantly improve the performance of two-dimensional semiconductor devices.

Abstract: A monolithically and heterogeneously integrated micro-light-emitting diode (microLED) display chip includes the following parts from bottom to top: an LED epitaxial wafer, an isolation layer, a two-dimensional (2D) thin-film transistor (TFT) drive array. The LED epitaxial wafer is provided with a microLED column display array. The 2D TFT drive array is connected to the microLED column display array through a metal column array. A top-gate field-effect transistor (FET) or a back-gate FET is used as a 2D TFT. A channel layer of the 2D TFT is made of a 2D layered material. The vertical monolithic heterogeneous integration is achieved through a drive circuit defined by a microLED column array on the epitaxial wafer and the 2D TFT matrix. A preparation method of the monolithically and heterogeneously integrated microLED display chip is provided.

Abstract: Techniques are provided for detection of malicious activity using behavior data. A behavior model is trained with behavior data generated in association with a plurality of requests. Data is received that describes a particular request from a particular client device to a server system hosting a website. The data includes particular behavior data generated at the particular client device in association with the particular request. The particular behavior data is analyzed using the behavior model to generate a behavior model result. An automation determination for the particular request is generated based on the behavior model result. The particular request is handled based on the automation determination for the particular request.

Abstract: A large-area, uniform, and continuous films of bi-layer transition metal dichalcogenide (TMDC) and preparation method comprises that the bi-layer TMDC continuous films are grown on a substrate through the merging of bi-layer domains; the top and bottom layers of the bi-layer domains have equal size and grow synchronously, which guarantees uniformity of the bi-layer films; the bi-layer domains were nucleated at the surface steps of the substrate which require a height no less than 0.8 nm; the bi-layer TMDCs films include molybdenum disulfide, tungsten disulfide, molybdenum diselenide, and tungsten diselenide, and the size of the bi-layer TMDC films reaches centimeter-level and above, limited only by the substrate size.

Abstract: An automated, fieldable ion-selective sensor system for frequent detection of nutrients in soils or water is set forth. In one aspect, an integrated small form-factor housing includes a battery, processor, a fluid manipulation unit and reservoirs, and a chemical species detection cell. A flow-through sampling head can be connected to the detection cell and a waste reservoir by flexible tubing sealingly connected at opposite ends of the tube. In one aspect, improved performance of the ion-selective sensor includes adding an ion-to-electron transfer interlayer between an ion-selective membrane and its working electrode. In one aspect, the sensor is solid-state and uses printed polymeric composite of POT-MoS2. The use of a porous tube for a sampling head and fluid connection at opposite ends allows not only fluid to be removed from the head to the detection cell for measurement but also flow in an opposite direction and out to a waste reservoir to clean and reset for a next sample measurement.

Abstract: The present invention discloses a method for preparing large-area transition metal dichalcogenide (TMDC) single-crystal films and the products obtained therefrom. The method comprises the steps of: (1) providing a single-crystal C-plane sapphire with surface steps along <1010> directions; and (2) taking the sapphire in step (1) as the substrate, generating unidirectionally arranged TMDC domains on the sapphire surface based on a vapor deposition method and keeping the domains continuously grow and merge into a large-area single-crystal film. The lateral size of the TMDC single-crystal films prepared by the method can reach inch level or above, and is limited only by the size of the substrate.

Abstract: Unsupervised or supervised machine learning (“ML”) techniques discussed herein can be used to classify browsers as one or more types of browser or within one or more browser groups.

Abstract: Techniques are disclosed for assisted learning with module privacy. In one example, a module creates a learner unit by fitting, into a first fitted label set, an initial label set using a first learning technique, a first machine learning model, and a first feature set, send, to at least one module that provides assisted learning, first statistical information defined by at least one residual from fitting the first fitted label set, wherein each module is operative to fit, into a second fitted label set, the first statistical information using at least one second learning technique, a second machine learning model, and a second feature set, receives second statistical information from the at least one module, the second statistical information being defined by at least one residual from fitting the second fitted label set, and updates the learner unit by fitting, into a third fitted label set, the second statistical information.

Abstract: A two-step optimization process is utilized to define an optimal phase profile for a LCoS spatial light modulator. The two-step optimization process first utilizes a nonlinear constrained optimization (NCO) program to determine the specific parameters required to obtain an optimal phase profile (hologram), where the “optimal phase profile” is typically defined as that profile which achieves maximum diffraction efficiency for optical switching. Following this first step, phase scaling (and perhaps an adjustment in the number of pixels per period) is employed to slightly modify the values of the optimal phase profile to effectively suppress crosstalk peaks. If any orders still exhibit an unacceptable level of crosstalk, these orders are then subtracted from the phase profile to create the final design.

Abstract: Apparatus, methods, and systems for transducing measurements from a medium of interest. One non-limiting example is in planta monitoring of plants. In one aspect, a micro- or nano-scale probe body includes one or more microprobes (e.g. microneedles or waveguides) to access desired plant tissue, and one or more microsensors on the probe body. A microcircuit on or in the probe body transduces relevant measurements from the microsensor(s). An output interface allows storage, communication, or transfer of the transduced measurement for further use. Non-limiting examples are processing into estimations of chemical concentrations or the like for biochemical sensing. As such, if used as in planta sensors, they can be minimally invasive and cost effective for both single use and use in sets for plural plants with one central station.