Abstract: In some embodiments, an apparatus includes a layer of a printed circuit board (PCB), a pair of signal vias formed on the layer of the PCB and including a first signal via a second signal via each configured to propagate a respective signal, a first plurality of ground vias formed on the layer and at least partially circumferentially surrounding the first signal via of the pair of signal vias, and a second plurality of ground vias formed on the layer and at least partially circumferentially surrounding the second signal via of the pair of signal vias. The first plurality of ground vias and the second plurality of ground vias include a shared ground via.

Abstract: Presented herein is a printed circuit board (PCB) assembly with an absorber having a perforated structure. The absorber is positioned between a trace of a PCB and a connector that couples the PCB to an enclosure. The absorber includes a perforated structure to maintain an integrity of a signal propagated along the trace, while improving electromagnetic interference and/or electromagnetic compatibility properties.

Abstract: In some embodiments, an apparatus, includes a pad of a printed circuit board (PCB) configured to couple to an electrical component separate from the PCB and a via formed through the pad. The via is offset from a center of the pad such that a distance between the via and a most adjacent trace electrically separate from the via is above a threshold distance.

Abstract: In some aspects, the techniques described herein relate to an apparatus including: a semiconductor device substrate material; a first signal conductor incorporated into the semiconductor device substrate material; a second signal conductor incorporated into the semiconductor device substrate material; and a ground conductor incorporated into the semiconductor device substrate material between the first signal conductor and the second signal conductor, wherein the ground conductor includes a first elongated portion and a second elongated portion arranged at an angle relative to the first elongated portion.

Abstract: A printed circuit board includes a grid of pads and tracks. The grid of pads includes a first pair of adjacent signal pads arranged in a first column and a second pair of adjacent signal pads arranged in a first row. A first signal pad of the second pair is arranged in the first column. The grid of pads also includes a third pair of adjacent signal pads arranged in a second row. A second signal pad of the first pair is arranged in the second row. The grid of pads further includes a fourth pair of adjacent signal pads arranged in a second column. A third signal pad of the third pair is arranged in the second column. A fourth signal pad of the fourth pair is arranged in the first row. The tracks are electrically coupled to the first, second, third, and fourth pairs.

Abstract: Methods and apparatus are described for splitting a page (or node) in an index tree database index for a multi-master database. The methods include creating a first split page of a first page. The first page belongs to a first set of pages and comprises a hinge page. The hinge page also belongs to a second set of pages. Updating the first set of pages may cause the hinge page itself to split, creating a split of the hinge page. The second set of pages is updated in response to creating the split of the hinge page. Described are techniques whereby the updates to the first and second sets of pages are atomic, that is, they all succeed or they all fail, which may realize any of several benefits.

Abstract: A gas oven with stations under parallel or synchronous control includes a plurality of temperature sensors, a controller and a plurality of processing stations. An air intake device includes a throttle valve, a gas transmission pipeline and a main gas valve. The throttle valve includes a combined gas control unit and a gas valve controller. The air intake device further includes an external gas supply source, and the gas supply source is connected to the gas transmission pipeline and a bakeware. The main gas valve and the throttle valve are separately arranged on the main gas transmission pipeline. The plurality of processing stations are provided with a plurality of gas sub-transmission pipelines and throttle valve gas main transmission pipelines, respectively. The gas oven further includes a communication module connected to a remote control to control the oven by way of a remote terminal or a mobile phone app.

Abstract: A control method of stepwise and stepless linear adjustment of a gas oven includes step 1: obtaining the setting temperature of the gas oven; step 2: obtaining the temperature inside the gas oven; step 3: determining the low temperature threshold, high temperature threshold and preset flame level according to the setting temperature, wherein the high temperature threshold is greater than the low temperature threshold; step 4: ensuring the temperature inside the gas oven is between the low temperature threshold and the high temperature threshold; step 5: if it exceeds, determining the change trend of the temperature inside the gas oven; step 6: when the change trend of the temperature inside the gas oven rises or falls, adjusting the flame level of the gas oven to the preset flame level.

Abstract: This application provides a data processing method and apparatus. The method includes: receiving, by a master storage node, information that is about a first transaction and that is sent by a read-write node, where the information about the first transaction is used to request to perform a write operation on first data stored on the master storage node; determining, by the master storage node, the first data based on the information about the first transaction, and executing the first transaction; generating, by the master storage node, first transaction status metadata when the first transaction ends, where the first transaction status metadata includes identification information of expired data and identification information of the first transaction; and sending, by the master storage node, the first transaction status metadata to at least one read-only node. According to the data processing method and apparatus, a read delay of a read-only node can be eliminated.

Abstract: The disclosed systems and methods are directed for detecting and resolving write-write conflicts among a plurality of transactions received from master nodes of a multi-writer database system. The method includes receiving a plurality of REDO logs and storing the plurality of REDO logs in a buffer, each REDO log associated with the one of the plurality of transactions, selecting one REDO log of the plurality of REDO logs; persisting the transaction associated with the one REDO log in a local storage when a write-write conflict is detected between the one REDO log and at least one other REDO log of the plurality of REDO logs prior to committing the transaction associated with the one REDO log; and transmitting a status of the transaction associated with the one REDO log to a global transaction manager (GTM).

Abstract: A machine learning-based method for automatically determining abnormal points of a single indicator includes step 1: randomly selecting M sample points from training data as subsamples, and putting them into a root node of a tree; and step 2: randomly specifying a data dimension for projection, and randomly generating a cutting point p in data of a current node, where the cutting point is generated between a maximum value and a minimum value of the specified dimension in the data of the current node. The present disclosure optimizes conventional data analysis linear model functions and regression model functions, constructs a computer neural network in the algorithm, puts multiple perceptron parameters in a multi-layer network for learning and training, and adopts the principle of principal component analysis, to find out the abnormal data that violates the data correlation.

Abstract: Methods and apparatus are described for splitting a page (or node) in an index tree database index for a multi-master database. The methods include creating a first split page of a first page. The first page belongs to a first set of pages and comprises a hinge page. The hinge page also belongs to a second set of pages. Updating the first set of pages may cause the hinge page itself to split, creating a split of the hinge page. The second set of pages is updated in response to creating the split of the hinge page. Described are techniques whereby the updates to the first and second sets of pages are atomic, that is, they all succeed or they all fail, which may realize any of several benefits.

Abstract: A control method of stepwise and stepless linear adjustment of a gas oven includes step 1: obtaining the setting temperature of the gas oven; step 2.: obtaining the temperature inside the gas oven; step 3: determining the low temperature threshold, high temperature threshold and preset flame level according to the setting temperature, wherein the high temperature threshold is greater than the low temperature threshold; step 4: ensuring the temperature inside the gas oven is between the low temperature threshold and the high temperature threshold; step 5: if it exceeds, determining the change trend of the temperature inside the gas oven; step 6: when the change trend of the temperature inside the gas oven rises or falls, adjusting the flame level of the gas oven to the preset flame level.

Abstract: A gas oven with stations under parallel or synchronous control includes a plurality of temperature sensors, a controller and a plurality of processing stations. An air intake device includes a throttle valve, a gas transmission pipeline and a main gas valve. The throttle valve includes a combined gas control unit and a gas valve controller. The air intake device further includes an external gas supply source, and the gas supply source is connected to the gas transmission pipeline and a bakeware. The main gas valve and the throttle valve are separately arranged on the main gas transmission pipeline. The plurality of processing stations are provided with a plurality of gas sub-transmission pipelines and throttle valve gas main transmission pipelines, respectively. The gas oven further includes a communication module connected to a remote control to control the oven by way of a remote terminal or a mobile phone app.

Abstract: A detachable multi-station parallel synchronous and asynchronous control system for a gas oven includes a controller, a plurality of temperature sensors, a solenoid valve, a stepper motor, and a remote control terminal. The plurality of temperature sensors are installed on a plurality of stations, respectively. The controller generates a control signal, and sends the control signal to a driver through a communication network, so that the driver generates a driving signal according to the control signal, and sends the driving signal to a multi-station coordinated control system. The multi-station coordinated control system controls the stepper motor and the solenoid valve of each station according to the drive signal. A sensor is configured to collect position information and speed information of a plurality of target motors and generate a detection signal. A method for using the detachable multi-station parallel synchronous and asynchronous control system is further provided.

Abstract: A temperature controller for a gas oven includes a control module, a temperature measurement module, a prompt module, and a gas regulating module. The control module is connected to the temperature measurement module, the prompt module, and the gas regulating module, respectively, to transmit a signal. The temperature measurement module is arranged in the oven to measure a temperature in the oven and return the temperature to the control module. The prompt module is configured to receive an excessive temperature or a normal temperature of the control module, and provide a prompt. The gas regulating module is configured to receive a temperature and a control quantity returned by the control module, and control an air intake quantity, to adjust the temperature or turn on or turn off the oven. A micro-switch is provided and an on signal and an off signal of the micro-switch are transmitted to the control module.

Abstract: The disclosed computing node comprises a processor and a non-transitory storage medium storing instructions executable by the processor. A method and a system are also disclosed. A subset of a plurality of conventional redo records, corresponding to received write requests, is selected based on an identical data location identifier. The conventional redo records of such selected subset are combined into a consolidated redo record. The consolidated redo record is then transmitted to a target node for processing.

Abstract: The disclosed systems, structures, and methods are directed towards for processing a lock request by a master node to access a shared data object in a database located at a remote location comprising identifying, in the master node, a category of the lock request. If the lock request is for a self-compatible lock, determining a value of a counter associated with the master node and with one or more other master nodes, and if the value of the counter is zero, locally granting the lock request. If the value of the counter is greater than zero, forwarding the lock request to a global lock manager (GLM), and if the lock request is for a heavy-conflicting lock, forwarding the lock request by the master node to the GLM.

Abstract: The invention discloses an inverted cone separation device with double dust-collecting cups and cleaner comprising the same, the inverted cone separation device comprises a separator, a dust-collecting cup connecting member, and dust-collecting cups, the separator includes a first and second separator, the first separator is arranged in a first cavity, and the second separator is arranged in a second cavity; the first separator includes an inverted cone filter, the surface of the inverted cone filter includes a filtering and non-filtering surface; the filtering surface is in communication with an air duct. When implementing the invention, large-particle garbage can be separated in a first dust-collecting cup through the inverted cone filter, and other garbage enters the second dust-collecting cup through the air duct, therefore, the large-particle garbage can be separated and be effectively prevented from entangling and blocking in the dust-collecting cup, and the efficiency of dust collection is improved.

Abstract: The disclosed systems and methods are directed for detecting and resolving write-write conflicts among a plurality of transactions received from master nodes of a multi-writer database system. The method includes receiving a plurality of REDO logs and storing the plurality of REDO logs in a buffer, each REDO log associated with the one of the plurality of transactions, selecting one REDO log of the plurality of REDO logs; persisting the transaction associated with the one REDO log in a local storage when a write-write conflict is detected between the one REDO log and at least one other REDO log of the plurality of REDO logs prior to committing the transaction associated with the one REDO log; and transmitting a status of the transaction associated with the one REDO log to a global transaction manager (GTM).