Abstract: A drag knife apparatus for cutting stencil patterns in sheet material comprises a drag knife holder biased downwardly into cutting position by a variable tension spring and lifted out of cutting position by a relay-controlled solenoid. The knife holder is counterweighted through a lever arm. The apparatus can be used to form a sandblasting stencil from material adhesively held in position on the face of a monument during the stencil cutting process. The stencil is removed after the sandblasting step.

Abstract: A chemical mechanical polishing composition comprises, consists of, or consists essentially of a liquid carrier, abrasive particles in the liquid carrier, a pyrophosphate compound, and a sulfonate compound or a compound including a quaternary ammonium group.

Abstract: System analysis by receiving a model of a complex system design. The model includes at least one layer. The analysis includes performing a plurality of simulations of the performance of the layer. The number of simulations is determined according to a number of system components associated with the layer. The analysis further includes determining a worst-case result for a set of simulations from the plurality of simulations and assigning the worst-case result to an overall system simulation.

Abstract: A laser engraving machine with a three-point suspension system and an inverted X-Y axis support system wherein the X-axis beam is to and mounted below the Y-axis beams and the Y-axis beams are mounted inwardly of the outer ends of the X-axis beam and are structurally integrated with the machine housing. In addition, a counterweight in the form of a second, independently activatable laser is added to the drive belt to reduce or eliminate vibration during rapid reciprocal movement of the tool during an engraving process.

Abstract: A wearable air conditioner includes a shell for being worn around a wearing portion of a user, a fan and a temperature regulating member disposed in the shell. The shell includes a first air passage, a first accommodating chamber, at least one air outlet in communication with the first air passage, and vent holes in communication with the first accommodating chamber. The temperature regulating member is configured for generating heat energy or cold energy. The temperature regulating member is in thermal connection with a sidewall of the first accommodating chamber. An airflow generated by the fan is capable of entering the first air passage and then exiting the shell via the at least air outlet.

Abstract: The present disclosure belongs to the technical field of sewage treatment, and discloses a method and system for enhanced culture of aerobic granular sludge. The system includes a reaction tank, a water inlet and outlet unit, an aeration unit, and a sludge discharge unit. The water inlet and outlet unit includes a water inlet pump, a water inlet electric valve, a liquid flowmeter, a sewage uniform distribution treatment device, buffers, a water drainage pipe, and a water drainage electric valve. The aeration unit includes a blower, microporous aerators, and a gas flowmeter. The sludge discharge unit includes sludge discharge pumps, a sludge discharge pipe, a sludge discharge electric valve, and a sludge concentration meter. In the present disclosure, a multi-point uniform water distribution method is used.

Abstract: Exemplary embodiments relate to a protein engineering pipeline configured to optimize or improve proteins for specified functions. The problem space of such a task can grow quickly based on the sequence of the protein being optimized and the functions for which the protein is being designed. The solutions described herein allow the problem space to be efficiently searched by applying a combination of a protein design pipeline and an evaluation procedure performed on a quantum computer. As a result, single or multiple amino acid substitutions at a site of interest may be predicted in order to generate optimized protein variants.

Abstract: A morphing part to be morphed and a morphing effect are acquired. Human body contour point information is acquired by detecting a human contour point of a human sideway image. A morphing region is determined according to the human contour point information and the morphing part. The morphing region is an image region to be morphed in the human sideway image. A human orientation is determined according to the human contour point information. A morphing direction of the morphing region is determined according to the human orientation and the morphing effect. Morphing is performed along the morphing direction in the morphing region.

Abstract: A vibration isolation/damping satellite mount of a chopped carbon fiber reinforced thermoplastic composite material mainly includes two parts, and the two parts are connected through bolts. Considering the limitation of the molding process, the mount configuration is further optimized, and the mount structure is prepared by using the injection molding process. Furthermore, the vibration isolation/damping satellite mount of the chopped carbon fiber reinforced thermoplastic composite material prepared in the present invention can be used for large loads and complex working conditions, and the connectivity, overall strength stability, vibration isolation performance and service life of the mount all meet the design requirements.

Abstract: Variant polypeptides having beta-amylase activity and methods of making and using the enzymes in baking, detergents, personal care products, in the processing of textiles, in pulp and paper processing, in the production of ethanol, lignocellulosic ethanol, or syrups; as viscosity breakers in oilfield and mining industries.

Abstract: The present invention provides a Saccharomyces uvarum strain capable of low production of higher alcohols and strong degradation of malic acid. After the wine using Saccharomyces uvarum recombinant strain of the present invention is fermented for 5 days, with other fermentation properties unaffected, the content of isobutanol, isoamyl alcohol and phenethyl alcohol in the wine is 28.18 mg/L, 171.76 mg/L and 13.60 mg/L respectively, which is reduced by 20.28%, 14.77% and 11.26% compared with the starting strain, the total content of main higher alcohols (n-propanol, isobutanol, isoamyl alcohol and phenethyl alcohol) is reduced by 12.97%, and the content of malic acid is reduced to 1.13 g/L after fermentation, which greatly shortens the fermentation period, overcomes the influence of lactic acid bacteria fermentation in the ordinary fermentation process and unpleasant flavor caused by higher content of higher alcohols.

Abstract: A computing architecture for providing a software component or feature of a first platform as a service to a second platform. An API request from a frontend of the second platform, including a user auth token providing access to the second platform, can be received by an authentication token proxy service that converts the user auth token into a user auth token of the first platform. With this token, subsequent API requests of a backend of the first platform from the frontend of the second platform can be served directly by the second platform.

Abstract: A portable blowing device configured for being worn around a neck of a human body, includes two arms each defining an airflow channel therein; and fans received in the arms respectively. The arm includes an inner side wall close to the neck and an outer side wall connected to the inner side wall. The arm includes an air inlet and an air outlet in communication with the airflow channel respectively. The air inlet is arranged at the inner side wall and/or the outer side wall. The fan is configured to generate an airflow passing through the air inlet, the airflow channel and the air outlet in sequence.

Abstract: The present disclosure provides a portable blowing device configured for being worn around a neck of a human body, the portable blowing device includes two parts and two first fans. Each first part defines an airflow channel therein and includes an inner side wall, an outer side wall, and a top side wall connected between the inner side wall and the outer side wall. Each fan is received in one corresponding part and configured for generating an airflow to flow through the airflow channel defined therein. At least a portion of each of the two top side walls includes an inclined surface. Each of the parts defines at least one first air inlet and at least one first air outlet communicated with the at least one first air inlet and the airflow channel, and each of the first air outlets is defined in one corresponding inclined surface.

Abstract: A novel PSL family prenyltransferase has relaxed substrate specificity, which can use a variety of cyclic dipeptides and prenyl donors as substrates to produce various terpenylated diketopiperazines. An amino acid sequence of the prenyltransferase is SEQ ID NO: 1. An application of the prenyltransferase is transferring different prenyl groups to Trp-containing cyclic dipeptides. The prenyltransferase catalyzes the formation of terpenylated diketopiperazines by assembling prenyl groups onto cyclic dipeptides, which provides a new strategy for drug development of diketopiperazines.

Abstract: A frame like structure supporting a laser engraving machine between left and right vertically adjustable pedestal. Each pedestal is mounted to a set of vertically oriented screw shafts wherein at least one shaft on each side frame is driven by a stepper motor connected to the screw shaft adjacent the bottom end thereof. Manually operated locks are provided at the tops of the screw shaft to prevent inadvertent rotation caused by the weight of the engraving machine in the event of a motor failure. The pairs of screw shafts on each side of the frame are coupled by belts to permit one motor to rotate both shafts and one lock to lock both shafts.

Abstract: Exemplary embodiments relate to a protein engineering pipeline configured to optimize or improve proteins for specified functions. The problem space of such a task can grow quickly based on the sequence of the protein being optimized and the functions for which the protein is being designed. The solutions described herein allow the problem space to be efficiently searched by applying a combination of a protein design pipeline and an evaluation procedure performed on a quantum computer. As a result, single or multiple amino acid substitutions at a site of interest may be predicted in order to generate optimized protein variants.

Abstract: A transparent light source system for a display device comprises a light source, and a light guide plate which includes an incident surface opposite to the light source, an upper surface, a lower surface parallel to the upper surface, and a lateral surface opposite to the incident surface. An outer light guide film is disposed outside the upper surface, first optical micro-structures allowing light transmitted in the light guide plate to be emitted from the upper surface are disposed on the upper surface, second optical micro-structures opposite to the first optical micro-structures are disposed on an inner surface of the outer light guide film, and the second optical micro-structures allow light emitted out of the first optical micro-structures to be emitted from an outer surface of the outer light guide film.

Abstract: A method for sending a data packet includes, sending, by a transmit node, a data packet based on a target sending rate and occupation of a data sending queue, where a sending rate for sending the data packet is proportional to the target sending rate, and the occupation of the data sending queue limits a quantity of data packets. The transmit node receives a feedback message from a receive node indicating the capability of the receive node for processing the data packet. The transmit node may adjust the sending rate based on the feedback message.