Abstract: Multi-solid waste activated concretes with high-silicon iron ore tailings and preparation methods thereof are disclosed. In at least some embodiments, the concrete is prepared from raw materials including 360-380 kg/m3 of a cement, 30-40 kg/m3 of fly ash, 30-40 kg/m3 of a modified ultrafine sand of high-silicon iron ore tailings, 930-950 kg/m3 of a waste stone of tailings, 870-930 kg/m3 of a fine sand of tailings, 160-170 kg/m3 of water, and 4-8 kg/m3 of an additive.

Abstract: Face mask devices, systems, and methods of use include a frame that holds a suitable filter material, including a face mask, over the user's face to form a seal and prevent unfiltered air from being inhaled through the nose or mouth of the user without first passing through the filter material. The frame is removably attached over the users face by, for example, adjustable straps. The frame may be adjustable in size to be suitable for use on user's having different facial sizes, shapes, and/or geometries.

Abstract: Disclosed is a control device for determining cognitive radio terminals. The device comprises: a spectrum sensing information storage unit for receiving and storing interference amount information for each frequency from spectrum sensing devices; a communication success probability calculation unit for receiving position information from secondary user terminals within a network and calculating a communication success probability of each secondary user terminal; a reinforced learning unit for setting the communication success probability as an initial access probability for each of the secondary user terminals and enabling learning such that an access probability, a state function, and a utility function are updated for each of the secondary user terminals at each iteration; and a cognitive radio terminal determining unit for, when the leaning is completed in the reinforced learning unit, selecting a secondary user terminal to execute cognitive radio communication on the basis of a final access probability.

Abstract: A flexible polymer waveguide array structure serves as a stitch or jumper on an optical printed circuit board (OPCB). The flexible polymer waveguide array structure can be attached to the OPCB so that it can provide a chip-to-OPCB optical connection. The waveguide(s) in the flexible polymer waveguide array structure may be prefabricated before the flexible polymer waveguide array structure is attached to the OPCB. Alternatively, the waveguides may be fabricated after the flexible polymer waveguide array structure has been attached to the OPCB. The waveguide(s) may be subsequently formed using a printing process such as photolithography. As a consequence of forming the waveguide(s) after attachment of the flexible polymer waveguide array to the OPCB, the precision in the lateral alignment that is required when placing the flexible polymer waveguide array structure on the OPCB is generally significantly less than is required when the waveguide(s) are prefabricated.

Abstract: Small molecule disruptors of Beclin-1/Bcl-2 protein-protein interactions induce autophagy and hence are useful for treating a variety of indications where stimulation of autophagy is therapeutically useful, including cancer, infection immunity, neurodegeneration, longevity.

Abstract: Methods, systems, and media for segmenting images are provided. In some embodiments, the method comprises: generating an aggregate U-Net comprised of a plurality of U-Nets, wherein each U-Net in the plurality of U-Nets has a different depth, wherein each U-Net is comprised of a plurality of nodes Xi,j, wherein i indicates a down-sampling layer the U-Net, and wherein j indicates a convolution layer of the U-Net; training the aggregate U-Net by: for each training sample in a group of training samples, calculating, for each node in the plurality of nodes Xi,j, a feature map xi,j, wherein xi,j is based on a convolution operation performed on a down-sampling of an output from Xi?1,j when j=0, and wherein xi,j is based on a convolution operation performed on an up-sampling operation of an output from Xi+1,j?1 when j>0; and predicting a segmentation of a test image using the trained aggregate U-Net.

Abstract: Spheroid microtissues that can mimic native tissue-like structure and function, spheroid production methods that are high-throughput, suitable for efficient production, maintainable over long-term culture, and/or offer repeatable control over size distribution. Spheroids that have blood vessels, including spheroids with functional, blood-perfused vascular networks upon injection in vivo. Dissolvable hydrogel microwell arrays for high throughput parallel formation of spheroids in a single pipetting step and easy retrieval for downstream applications. A method to produce prevascularized microtissues in sufficient numbers to form a macrotissue in vivo for therapeutic purposes. This method is based on sacrificial release of dissolvable microwell templates, a novel and scalable strategy which enables gentle harvesting of microtissues with control over size and composition.

Abstract: A method of making a hydrodesulfurization catalyst having nickel and molybdenum supported on activated carbon is specified. The hydrodesulfurization catalyst produced is mesoporous having an average pore diameter of 4-10 nm and a BET surface area of 250-500 m2/g. The utilization of the hydrodesulfurization catalyst in treating a hydrocarbon feedstock containing aromatic sulfur compounds (e.g. dibenzothiophene) to produce a desulfurized hydrocarbon stream is also provided.

Abstract: Disclosed herein are exciton-blocking treatments for buffer layers used in organic photosensitive optoelectronic devices. More specifically, the organic photosensitive optoelectronic devices described herein include at least one self-assembled monolayer disposed on the surface of an anode buffer layer. Methods of preparing these devices are also disclosed. The present disclosure further relates to methods of forming at least one self-assembled monolayer on a substrate.

Abstract: A fracturing method, to cause a crack in bedrock, includes installing a depressurizing device in a well in the bedrock, and depressurizing the inside of the well with the installed depressurizing device. The installing step includes installing, in the well, a connecting pipe, which is connected to the depressurizing device, and a packer, which is attached to the connecting pipe, and the depressurizing step includes shutting off a gap between the well and the connecting pipe, with the packer, and depressurizing a region in the well below the packer, with the depressurizing device.

Abstract: The present invention provides a means for reconstituting tissues and organs having mature functions. A method of preparing a tissue or an organ, comprising coculturing an organ cell with a vascular endothelial cell and a mesenchymal cell, generating an organ bud, transplanting the organ bud into a non-human animal, and then isolating from the non-human animal the transplanted organ bud-derived tissue or organ.

Abstract: A preparation method of indium oxide with stable morphology includes: (1) mixing indium oxide powder and bismuth oxide powder according to a mass ratio of 1:0.1-0.5 to obtain a powder mixture; (2) putting the powder mixture into a ball mill for ball milling at room temperature to obtain a uniform powder mixture; (3) putting the obtained uniform powder mixture into a muffle furnace and calcining at 700-1000° C.; and (4) obtaining the indium oxide with cubic stable morphology after the muffle furnace naturally cools to room temperature. The method has advantages of simple synthesis process, short synthesis period, high sample yield, no need of complicated equipment, and morphology of the obtained indium oxide can be maintained after being heated at a high temperature within 1000° C. for 2 hours. An electrochemical sensor prepared by using the indium oxide obtained by the method has better selectivity to nonane.

Abstract: A modularized externally-driven joint structure can be used for general purposes. An externally-driven joint structure: includes a shaft member that extends in an axial direction; and a number of rotatable members that are arranged along the axial direction, and are coupled with each other by the shaft member in an axially rotatable manner. Each of the rotatable members includes a pair of face portions that face each other in the axial direction, a side wall portion that is arranged along the outer circumferential edges of the pair of face portions, and at least one coupling portion that is arranged at the face portions or the side wall portion, and is coupled with a link member constituting a link of a robot.

Abstract: Blockade of immune checkpoints such as cytotoxic T-lymphocyte antigen-4 (CTLA-4) and programmed death-1 (PD-1) shows promise in patients with cancer. Inhibitory antibodies directed at these receptors have been shown to break immune tolerance and promote anti-tumor immunity. These agents work particularly well in patients with a certain category of tumor. Such tumors may be particularly susceptible to treatment because of the multitude of neoantigens which they produce.

Abstract: A size reduction in an optical system that detects a fluorescent photon is achieved. A photon detection operation of a photon detection unit (21) is controlled on the basis of timing of an irradiation operation of an excitation light source (50), and after excitation light emitted to a microfluidic channel (10) is switched off, a fluorescent photon generated by a target flowing in the microfluidic channel (10) is detected.

Abstract: Compositions of alkaline salts and metabolic acid inducers and methods of use thereof are provided. The disclosed compositions may be used for stimulating vagal nerve efferent pathways, treating or preventing an inflammatory response or an autoimmune disorder, inhibiting or reducing one or more inflammatory M1 macrophages and/or one or more inflammatory neutrophils in the blood, promoting polarization of macrophages from a pro-inflammatory M1 state to an anti-inflammatory M2 state, and treating or preventing cardiovascular disease or metabolic disorders.

Abstract: Provided is a bolt screening machine, including an external frame, a feeding mechanism, and a screening mechanism, wherein the feeding mechanism and the screening mechanism are combined with and mounted on the external frame, the unscreened bolts are fed into the screening mechanism through the feeding mechanism, and the screening mechanism screens and arranges the bolts.

Abstract: The invention provides a multi-functional true triaxial shear test device and method for hard rocks, the device comprises a hydraulic system, a left-end combination tangential loading oil cylinder, a right-end combination tangential loading oil cylinder, a front-end combination lateral loading oil cylinder, a rear-end combination lateral loading oil cylinder, an upper normal loading oil cylinder, a lower normal loading oil cylinder, an annular framework, a lateral auxiliary push-and-pull framework, an annular framework support platform, a horizontal support platform and a test chamber. The stiffness of the device is improved, and besides, a total section stress covering loading manner of the rock samples in a shear process is guaranteed. Through improving a temperature reduction manner of front ends of the oil cylinders, the situation that high temperature does not enable the temperature of hydraulic oil in the oil cylinders to rise to affect normal motion of the actuator can be guaranteed.

Abstract: A system, method, and apparatus for sensing analytes comprises assembling a sensor of at least one polymer and at least one fluorophore by mixing the polymer with the fluorophore, exposing the sensor to an analyte, and identifying the presence of the analyte according to a change in fluorescence of the sensor. The sensor can comprise a non-covalent complex of the at least one fluorophore and the at least one polymer. The at least one polymer can comprise a polymer capable of binding a metal ion. The at least one polymer is capable of binding a metal ion comprising an imidazole-containing polymer such as an N-vinylimidazole homo polymer and/or an N-vinylimidazole co-polymer.

Abstract: The present disclosure provides a return gas prevention device for a drainage pipe, belonging to the technical field of drainage pipes. The device realizes two functions of water seal and a check valve simultaneously, as well as prevents gas channeling in a drainage process.