Abstract: A sulfur-containing platinum-carbon catalyst, a preparation method thereof, and an application thereof are provided. The sulfur-containing platinum-carbon catalyst contains sulfur-containing conductive carbon black and a platinum metal loaded thereon. The total sulfur content in the sulfur-containing conductive carbon black is greater than or equal to the surface sulfur content, and the weight fraction of platinum is 20-70% by weight based on the total weight of the catalyst. The sulfur-containing platinum-carbon catalyst of the invention has a lower overpotential and a higher weight specific activity.

Abstract: A sulfur-modified carbon material contains conductive carbon black and sulfur elements distributed therein. The total sulfur content in the sulfur-modified carbon material is equal to or more than 1.2 times, preferably equal to or more than 1.5 times, the surface sulfur content. A process for preparing the sulfur-modified carbon material includes an impregnation step to impregnate the conductive carbon black with a solution containing sulfur at 10-80° C. for 1-5 h, and a drying step.

Abstract: The present invention provides a magnetic-control measurement system, comprises a reaction container and a programable magnetron measurement unit.

Abstract: An optical imaging system includes seven lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. Each of the seven lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The seventh lens element has negative refractive power, and the object-side surface of the seventh lens element is concave in a paraxial region thereof. At least one of the object-side surface and the image-side surface of at least one lens element of the optical imaging system has at least one inflection point in an off-axis region thereof.

Abstract: A diversified system shared rental device and method relates to a service and associated system that can turn any vehicle (such as a self-use vehicle) into a rentable vehicle. By means of a “vehicle rentable and networkable module”, all vehicles required to be rented and networked are installed, and the vehicles with rentable capability processed by the vehicle rentable and networkable module are connected to the diversified system shared rental device. Through the control of the diversified system shared rental device, a rental service of the rentable vehicles is provided. A rental platform is provided for completing a renal match operation, so that a general self-use vehicle can be rented and shared at any time in the free time to minimize the idle cost of all the vehicles and create a profit-making model to promote the benefits of the part-time economy.

Abstract: An optical imaging system includes seven lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. Each of the seven lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The seventh lens element has negative refractive power, and the object-side surface of the seventh lens element is concave in a paraxial region thereof. At least one of the object-side surface and the image-side surface of at least one lens element of the optical imaging system has at least one inflection point in an off-axis region thereof.

Abstract: A dynamic memory control method for clusters includes at least one processor core and for cache memories each belonging to a corresponding cluster of the clusters. The dynamic memory control method includes borrowing a first portion of cache memory from a first cache memory and/or a second portion of cache memory from a second cache memory to allow the first portion and/or the second portion of cache memory to be utilized as a temporary internal RAM, and returning the first portion of cache memory to the first cache memory and/or the second portion of cache memory to the second cache memory such that each of the first portion and/or the second portion of cache memory is exclusively used by the at least one processor core of the first cluster and/or the second cluster.

Abstract: A device selectively executes native machine code of a computing method in an application. Prior to execution of the application, a predicted usage level of the computing method is determined based on available statistical analysis data of the computing method. According to a determination of whether the predicted usage level exceeds a threshold, a selector selects executable code of the computing method for execution. The executable code is the native machine code or bytecode of the computing method. When the computing method is called during execution of the application, the selected executable code is loaded from non-volatile storage into memory for execution by a virtual machine. Furthermore, runtime usage level of the computing method is monitored to determine whether to switch from bytecode to native machine code execution.

Abstract: The invention relates to a motor lubricant cycling system, wherein a plurality of slots are disposed in the inner wall of the shaft tube in contact with the bearing, one end of the slot is connected to the conjunction of the top side of the bearing and the shaft, the lubricant, due to the pump effect, elevates along the shaft when the motor is rotating at high speed and is sucked in the slot by a backflow suction, and the other end of the slot is connected to the lubricant container beneath the bearing in formation of a guiding path dedicated to the lubricant cycling. According, the lubricant can be recycled for operation so as to reduce the noise resulting from the motor operation and prolong the life cycle.

Abstract: A method and apparatus for allocating CRC (Cyclic Redundancy Check) codes in a flash ROM (Read-Only Memory). The apparatus includes a flash ROM and a microprocessor. The flash ROM is logically divided into a plurality of data blocks. Each data block contains a CRC code block that includes a plurality of bytes for saving CRC codes. The microprocessor can write to and read from the flash ROM, calculate a complement code of a sum of all the bytes of the data block, and add the complement code to data of one of the plurality of bytes. The microprocessor thus generates new CRC codes and writes them to the corresponding CRC code block. The new CRC codes generated can meet the critical requirement of CRC. That is, the sum of all the bytes of the data block (including the CRC code block) is null.

Abstract: A method and apparatus for allocating CRC (Cyclic Redundancy Check) codes in a flash ROM (Read-Only Memory). The apparatus comprises a flash ROM (40) and a microprocessor (10). The flash ROM is logically divided into a plurality of data blocks (41). Each data block contains a CRC code block (42) that comprises a plurality of bytes for saving CRC codes. The microprocessor can write to and read from the flash ROM, calculate a complement code (51) of a sum (50) of all the bytes of the data block, and add the complement code to data of a selected byte. The microprocessor thus generates new CRC codes (52) and writes them to the corresponding CRC code block. The new CRC codes generated can meet the critical requirement of CRC. That is, the sum of all the bytes of the data block (including the CRC code block) is null.

Abstract: An article display device comprising a metal vertically supported rod, and a plurality of spaced plastic clips thereon. Each plastic clip comprises a body having an integral J-shaped section integrally connected to the body. The J-shaped section has a slot passing through the bight of the J-shaped section for receiving the rod to a position in which one end of the clip is resiliently biased against the rod, and the other end of the body may be depressed toward the rod to form an opening between the jaw of the clip and the rod for receiving a displayed article.

Abstract: An animal leash includes a length of aircraft cable and a clamp that can be adjusted along the cable. The clamp has an eye for receiving a snap connector on the end of the cable so that the leash can be formed with a loop with a fixed diameter. The leash permits the animal to move around a tree without the leash wrapping around the tree trunk.