Abstract: Embodiments of the present disclosure provide a data processing method and apparatus, wherein the data processing method includes: determining a first matrix and a second matrix, and splitting the second matrix into a first preset quantity of matrix blocks; invoking a Montgomery modular multiplication and addition instruction to perform an operation on an element included in the first matrix and an element included in a jth matrix block to obtain a matrix block operation result corresponding to the jth matrix block, and covering the element in the jth matrix block with the matrix block operation result corresponding to the jth matrix block; and increasing j by 1, continuing to perform the above-described step of obtaining the matrix block operation result until j is equal to the first preset quantity so as to obtain a target matrix from the matrix multiplication operation performed on the first matrix and the second matrix.

Abstract: An axial closed-loop flux electric motor or generator is a brushless AC and DC permanent magnet motor or generator, comprising a rotor having a rotor disc, permanent magnets, a shaft, and bearings; a stator having a casing and armature(s) which comprises a C-shaped core and a coil; and an electric control system. The even-numbered permanent magnets are evenly fixed or embedded in the holes of the edge of the rotor disc. Each magnet pole NS line in the hole is parallel to the shaft axis . The magnetic poles of adjacent permanent magnets are opposite. The armatures straddle the edge of the rotor disk without touching it. A single-unit motor or a single-phase AC generator comprises a stator, a rotor and an electronic control system. Coupling two or three single-unit motors can form a dual-unit motor, a triple-unit motor or a three-phase AC generator.

Abstract: A method of voting that provides an anonymous, verifiable, audit-able, secure, and anti-rigging voter receipt with secrecy and transparency. This voter receipt prints a voter's selection by filling a voter's Unique Voter Number with Signature Letter (UVNS) consisting of a Unique Voter Number and a voter Signature letter, into one of a group of the selections of a ballot. The voter receipt also prints one or more voter selections of other voters' UVNS in the remaining selections of the group of selections of a ballot; The voter receipt can print on paper, record in a memory device, mobile text or email; The voter receipt can verify with a published result of an election; A third party can audit all voter receipts in the election; The method of this application can utilize on an electronic voting (EV) system connected with a local network at a polling station, mobile network or internet.

Abstract: A method of voting providing an anonymous, verifiable, audit-able, secure, and anti-rigging voter receipt with total secrecy and transparency, which is printed not only a voter's selections by filling a voter's UVNS, which comprises a Unique Voting Number and a voter Signature Letter, into one of selections of a ballot, but also some other voters' selections filled with their UVNS in the rest of selections of the ballot; recorded by printing, or paperless digital recording, mobile text and/or emails; audited by third party; verifiable with a result of an election published after the election ends by any voter; utilized on electronic voting system connected with a local network at a polling station, mobile network or internet from anywhere.

Abstract: An automatic guitar tuning case is a tuning system to automatically, synchronously, accurately and rapidly turn an acoustic guitar or electrical guitar with no requirement of modifying the guitar. It has six optical transducers to respectively detect and convert the vibration of associated six guitar strings to electric signals. A microcontroller unit compares the frequencies of these input signals to selected tones, and then controls six electric tuning wrenches for tuning the six guitar strings. The automatic tuning guitar system also consists of a control panel for a user to preset and select tuning pattern, operate and monitor the system. It only needs to take a few seconds to tune a guitar by this tuning device.

Abstract: An automatic guitar tuning case is a tuning system to automatically, synchronously, accurately and rapidly turn a guitar. To automatically tune one string is not new, but automatically and synchronously tune an acoustic guitar or electrical guitar without modifying the guitar has never be done before. Changing one string's tension will cause all other strings' tension change, so all strings should be tuned synchronously and ended tuning together only when all strings are in tone at the same time. As a closed-loop control system, the automatic guitar tuning case comprises six transducers sensing the vibration frequency of six guitar strings respectively, six tuner units to analyze tones, and a center processor unit to control six electric tuning wrenches to tune the six guitar strings. The automatic guitar tuning case also consists of a control panel for a user to preset and select tuning patterns, control and monitor the system.