Abstract: A clutch adapted for an exoskeleton includes lower and upper base plates, a roller, a roller ratchet ring, a trigger, a pawl, a pawl spring, a trigger torsional spring, a trigger positioning shaft, and a pawl positioning shaft. Two ends of the trigger positioning shaft are respectively connected to the upper and lower base plates. The trigger and the trigger torsional spring are sleeved on the trigger positioning shaft. Two ends of the trigger torsional spring are respectively connected to the lower base plate and the trigger. Two ends of the pawl positioning shaft are connected to the lower and upper base plates. The pawl spring and the pawl are respectively sleeved on the pawl positioning shaft. Two ends of the roller are rotatably connected to the lower and upper base plates. The pawl is detachably connected to the roller ratchet ring. The trigger is movably connected to the pawl.

Abstract: The present disclosure belongs to the field of energy materials, and relates to a preparation method of a solid electrolyte, in particular to a method for forming a membrane by using an electrolyte to activate a porous powder material prepared by in-situ polymerization of a polymer on the surfaces of cellulose nanocrystals, and then hot-pressing. According to the technical solution of the present disclosure, cellulose nanocrystals are used as templates, the powder material with a porous structure is prepared by in-situ polymerization growth of the polymer on the surfaces of the cellulose nanocrystals, a small amount of electrolyte is used to activate the powder, and the solid electrolyte is prepared by hot-pressing membrane formation. The solid electrolyte prepared by the present disclosure has excellent electrochemical performance and mechanical performance, and a broad application prospect.

Abstract: An online measurement device for crystal size and shape in a high-solid-content crystallization process includes a solution amplifier, a measurement device, a peristaltic pump, a crystallization kettle, a dilution device and a solution storage tank. A crystal-containing solution is arranged in the crystallization kettle; an inner wall of the solution amplifier is smooth, one end is an amplification end, and the other end is a contraction end. The contraction end is communicated with one end of the solution storage tank and one end of the crystallization kettle. The amplification end is communicated with the dilution device and the peristaltic pump. The peristaltic pump is communicated with the other end of the crystallization kettle. The solution amplifier, the peristaltic pump and the crystallization kettle form a complete passage through a pipeline. A measurement instrument of the measurement device is arranged at the outer side of the solution amplifier.

Abstract: A method for history matching utilizing Bayesian Markov Chain Monte Carlo (MCMC) workflow may include selecting a reservoir simulation model of interest, identifying a mathematical model relevant to the reservoir simulation model, and identifying a plurality of history matching parameters as initial priors. The method may include constructing a first model, utilizing the initial priors, to obtain updated priors. The method may include constructing a second model to obtain posteriors. The method may include determining history matching accuracy of the reservoir simulation model by comparing medians of the posteriors and a plurality of measured data. The method may further include, upon determining accuracy of the reservoir simulation model, performing a plurality of predictions of a reservoir.

Abstract: A passive exoskeleton based on energy flow characteristics of a foot-ankle complex includes a first passive exoskeleton. The first passive exoskeleton includes an energy distribution mechanism, a strike-recipient mechanism and a wearing fixing assembly. The energy distribution mechanism is connected to the strike-recipient mechanism, and the energy distribution mechanism is also connected to the wearing fixing assembly. The energy distribution mechanism includes a ratchet wheel shaft, a left torsional spring, a right torsional spring and a middle guide wheel respectively sleeved on the ratchet wheel shaft. The middle guide wheel is connected to the wearing fixing assembly through an ankle joint power-assisted cord. The ratchet wheel shaft is connected to the strike-recipient mechanism, the strike-recipient mechanism drives the ratchet wheel shaft to rotate, and the ratchet wheel shaft drives the left torsional spring, the right torsional spring and the middle guide wheel to rotate.

Abstract: A method for treating cancer by using an agent which is capable of inhibiting the functionality of the MCM complex, a heterohexameric ring formed from six subunits, in the process of DNA replication and a method of screening for such agents by detecting the locations and functions of the MCM subunits, such as hMcm2 and hMcm6, in cells treated with candidate compounds.

Abstract: A perfluorocarbon-free membrane composed of a non-perfluorocarbon material having a first side and a second side opposite of the first side. The perfluorocarbon-free membrane also includes a plurality of pores, each having an inlet and outlet and each passing through the non-perfluorocarbon material so that each pore provides fluidic communication between the first and second sides of the non-perfluorocarbon material. A portion of the non-perfluorocarbon material extends over the inlet and outlet of each the plurality of pores so that a cross-sectional area of the inlets and outlets in a direction of the extension of the non-perfluorocarbon material is smaller than a cross-sectional area of the respective pore in the direction of the extension of the non-perfluorocarbon material. The perfluorocarbon-free membrane does not include a hydrophobic perfluorocarbon coating.

Abstract: A system and method passively normalize an ultrasonic dry coupled wheel probe as the probe traverses a surface of a structure to inspect the structure, such as a flat structure or a curved pipe. At least a pair of arms are configured to passively maintain normalization of the probe in a detection direction normal to the surface.

Abstract: Provided are methods, systems, and apparatuses providing flexible conductive substrates for nanomaterial/perovskite-based optoelectronic devices. One such apparatus may include a flexible conductive substrate, a nanomaterial layer disposed on the flexible conductive substrate, and a perovskite layer disposed on the nanomaterial layer. The flexible conductive substrate may be a cost-effective metal sheet such as a stainless steel sheet or an aluminum sheet. The nanomaterial layer may comprise semiconductor or oxide nanorods, nanowires, nanotubes, or nanoparticles, such as gadolinium-doped zinc oxide nanorods. The perovskite layer may comprise inorganic or organic perovskite. The apparatus may further include an optically transparent conductive layer disposed on the perovskite layer. Optionally, the apparatus may include an electrical contact disposed on a portion of the optically transparent conductive layer.

Abstract: Disclosed is a metal-semiconductor contact structure based on two-dimensional (2D) semimetal electrodes, including a semiconductor module and a metal electrode module, where the semiconductor module is a 2D semiconductor material, and the metal electrode module is a 2D semimetal material with no dangling bonds on its surface; the 2D semiconductor material and the 2D semimetal material are interfaced with a Van der Waals interface with a surface roughness of 0.01-1 nanometer (nm) and no dangling bonds on the surface, the 2D semiconductor material and the 2D semimetal material are spaced less than 1 nm apart.

Abstract: A secondary cooling control method for reinforcing surface solidification structure of microalloyed steel continuous casting bloom includes: in situ observing precipitation behavior of secondary phase particles of the microalloyed steel, and determining a concentrated precipitation temperature range; cooling the microalloyed steel at different cooling rates, obtaining a particle size and a volume fraction of the secondary phase particles of the microalloyed steel at different cooling rates; determining an optimal average cooling rate; determining an optimal average cooling rate r; determining an optimal average cooling rate; and determining an optimal average cooling rate range through intersection of the three optimal average cooling rates whereby the continuous casting secondary cooling is optimized. The present invention can enhance the surface solidification structure of continuous casting bloom and reduce surface and subsurface cracks of the microalloyed steel continuous casting bloom.

Abstract: A microscopic imaging method of phase contrast (PC) and differential interference contrast (DIC) based on the transport of intensity equation (TIE) includes capturing three intensity images along the optical axis; solving the TIE by deconvolution to obtain the quantitative phase; obtaining the intensity image under the DIC imaging mode according to the DIC imaging principle; and obtaining the corresponding phase image of PC imaging mode according to the PC imaging principle. The method can endow the bright-field microscope with the ability to realize PC and DIC imaging without complex modification of the traditional bright-field microscope. In addition, it has the same imaging performance as the phase contrast microscope and differential interference contrast microscope, which are expensive, complex-structure, and has strict environmental conditions.

Abstract: A preparation method of charcoal-based fertilizer is provided. Particularly, a special pig manure charcoal modified by amino grafting, a preparation method thereof, and its application in the reuse of nitrogen from farmland drainage are provided. The preparation method includes the following steps: 1) drying raw pig manure to a moisture content of 80%-85% and carrying out pickling, drying, and crushing successively to obtain a dried pig manure powder; 2) conducting liquid nitrogen pretreatment and high-temperature charcoalization to obtain an expanded pig manure charcoal; 3) performing carboxylation treatment to obtain a carboxylated pig manure charcoal; 4) amino grafting: adding an ammonia liquor to the carboxylated pig manure charcoal obtained in step 3), stirring for 20-24 h in an oil bath at 200-240° C.; washing and filtering; and drying and grinding to obtain the special pig manure charcoal modified by amino grafting.

Abstract: A secondary cooling control method for reinforcing surface solidification structure of microalloyed steel continuous casting bloom includes: in situ observing precipitation behavior of secondary phase particles of the microalloyed steel, and determining a concentrated precipitation temperature range; cooling the microalloyed steel at different cooling rates, obtaining a particle size and a volume fraction of the secondary phase particles of the microalloyed steel at different cooling rates; determining an optimal average cooling rate; determining an optimal average cooling rate r; determining an optimal average cooling rate; and determining an optimal average cooling rate range through intersection of the three optimal average cooling rates whereby the continuous casting secondary cooling is optimized. The present invention can enhance the surface solidification structure of continuous casting bloom and reduce surface and subsurface cracks of the microalloyed steel continuous casting bloom.

Abstract: A device and method for preparing a solidified cohesionless soil specimen for triaxial test. The device includes a first vessel for storing a grout, a first peristaltic pump, a grouting pipe, a first electrode rod, a direct-current power supply, a first glass stopper, a PMMA pipe, a circumferential grouting cylinder, a first hoop sleevedly provided on the circumferential grouting cylinder, a second hoop sleevedly provided on the PMMA pipe, a return pipe, a second glass stopper, a second electrode rod, a liquid outlet pipe, a first water-stop clamp, a second water-stop clamp, a second vessel for collecting an exudate, and a second peristaltic pump.

Abstract: A method for global mapping between a first sequence Xp and a second sequence Xg.

Abstract: An analog front-end module of an ultra-wideband optical receiver including a transimpedance amplifying unit and a distributed amplifier unit is provided. The transimpedance amplifying unit is configured to convert an externally-inputted current signal into a voltage signal, amplify the voltage signal, and then output a voltage-amplified signal. The distributed amplifier unit includes an input transmission network, an input matching load, an output transmission network, an output matching load, and a plurality of gain units. The input transmission network is configured to receive the voltage-amplified signal and distribute the voltage-amplified signal to each gain unit for further amplification. The input matching load is configured to absorb the voltage-amplified signal reflected to the transimpedance amplifying unit. The output transmission network is configured to superimpose amplified signals outputted from the gain units and output in combination.

Abstract: This disclosure relates to an active inerter damper configured to be disposed on or in a building structure. The active inerter damper includes a base, a lead screw, a rotational mass block, a driving device and a controller. The lead screw is movably disposed above the base along an axial direction. The rotational mass block is engaged with the lead screw so as to be rotatable with respect to the base. The driving device is connected to the lead screw. The controller is electrically connected to the driving device, and the controller is configured to activate the driving device to move the lead screw along the axial direction so as to rotate the rotational mass block via the lead screw.

Abstract: A system for integratedly testing damping performance of a hydro-pneumatic suspension vehicle, including a testing platform and a testing device. The testing device includes a sensor module, a data acquiring and processing module and a testing software. A method for integratedly testing damping performance of a hydro-pneumatic suspension vehicle is also provided. A calculation is performed by a testing software to optimize a sensor configuration. A signal is acquired and transmitted by the sensor module. The signal is acquired and processed by a data acquiring and processing module, and displayed and analyzed by the testing software.

Abstract: Disclosed is an in vitro exposure system that may radiate a uniform field having a constant wavefront to an experimental cell container and expose each cell container to a same electromagnetic field.