Abstract: The present invention provides methods and kits for the detection of rare genetic mutations in the human KRAS gene. The methods provided herein use specific restriction enzymes that target regions in the 3? end of a region of interest within the human KRAS gene paired with primers designed for the specific amplification of the digested regions of interest to identify samples comprising these rare mutations.

Abstract: Provided are a wireless signal apparatus and an elevator service request system and method, which belong to the field of intelligent elevator control technologies. In the elevator service request system of the present invention, a corresponding wireless signal is broadcast by a wireless signal apparatus of an elevator system and the wireless signal is received by a personal mobile terminal. The personal mobile terminal is provided with an elevator service request application component running at an application layer of an operating system thereof. The wireless signal apparatus includes a location notification unit used for broadcasting corresponding location marker data. The elevator service request system includes a wake-up module running at a system layer of the operating system of the personal mobile terminal. The wake-up module is used for waking up the elevator service request application component in response to reception of the location marker data.

Abstract: A sealing ring positioning component adapted to be fitted on an outer housing of a connector to position a sealing ring on the outer housing comprises a peripheral wall and a pushing protrusion formed on an inner peripheral surface of the peripheral wall. The pushing protrusion is adapted to be pushed on the outer sides of two half shells of a shielding shell of the connector such that splicing edges of the two half shells of the shielding shell are in contact with each other.

Abstract: The present disclosure relates to the technical field of nut-derived fruit oil preparation, in particular to a method for extracting palmitoleic acid from Macadamia integrifolia and use thereof. In the method for extracting palmitoleic acid from Macadamia integrifolia, a fruit oil of the Macadamia integrifolia is purified by vacuum distillation, and an antioxidant is added during the vacuum distillation. A preparation method of the antioxidant includes the following steps: extracting a pulverized Macadamia integrifolia green peel using ethanol by heat reflux to obtain a green peel extract; extracting the green peel extract using petroleum ether, and then using ethyl acetate; collecting an ethyl acetate layer to obtain the antioxidant. The method can avoid easy oxidization and deterioration of oil during extracting and enriching the palmitoleic acid, and can enrich the palmitoleic acid in the fruit oil of the Macadamia integrifolia by not less than 3 times.

Abstract: An image processing method and apparatus, a device and a storage medium. The method comprises: acquiring a trigger instruction of a user and a first image, wherein the first image comprises two or more sub-images, and the positions of the two or more sub-images on the first image are disarranged; according to the trigger instruction, randomly exchanging the positions of the sub-images on the first image, displaying a process of randomly exchanging the sub-images until all the sub-images on the first image are restored to the position before the disarrangement, and obtaining a second image; and displaying the second image obtained by restoration.

Abstract: The invention relates to a composite shock absorber for a polycrystalline diamond compact bit, comprising a drilling tool body having a water inlet, an impact body having a water outlet and forming a shock absorption cavity, a disc spring group having an annular pressing sleeve, a cylindrical torsion bar spring which has an external thread and a spline, is connected to the drilling tool body through threads and extended into an impactor and connected thereto through the spline, and the annular pressing sleeve, wherein bit vibration impact force is transmitted therebetween through a torsion transmission joint, and a bearing group is arranged between the lower end surface of the annular pressing sleeve and an annular step of the impact body. The composite shock absorber can weaken damage of the slippage effect to polycrystalline diamond compact cutting teeth, absorb axial vibration from a drill stem and prolong the service life of the bit.

Abstract: A personal protective device (PPE) comprising a face cover assembly and a bodysuit configured to be worn by a human user. The device protects users against airborne aerosol particles containing viruses or other infectious agents while enabling improved flexibility relative to prior art designs. The device includes a helmet-like” rotating face cover assembly that fits over the user's head and attaches to a collar on the biohazard bodysuit. This rotating face cover assembly has a plurality of different mask sides, each with differing geometries or other properties. The device enables a user to rotate (either manually or by electric motor) the masks and select a given mask side that best meets that user's needs. The different mask sides can accommodate different facial geometries, eyewear types, and use cases, such as operation in more hostile environments. Features to improve user comfort, including alternate bodysuit designs, moisture reduction, and cooling are disclosed.

Abstract: A personal protective device (PPE) including a face cover assembly and a bodysuit configured to be worn by a human user. The device protects users against airborne aerosol particles containing viruses or other infectious agents while enabling improved flexibility relative to prior art designs. The device includes a helmet-like” rotating face cover assembly that fits over the user's head and attaches to a collar on the biohazard bodysuit. This rotating face cover assembly has a plurality of different mask sides, each with differing geometries or other properties. The device enables a user to rotate (either manually or by electric motor) the masks and select a given mask side that best meets that user's needs. The different mask sides can accommodate different facial geometries, eyewear types, and use cases, such as operation in more hostile environments. Features to improve user comfort, including alternate bodysuit designs, moisture reduction, and cooling are disclosed.

Abstract: Disclosed are a method, an apparatus, a computer device and a storage medium for decoding speech data. The method comprises acquiring at least one transcribed text obtained by transcribing the speech data; acquiring score of each transcribed text; acquiring at least one preset hot word corresponding to the speech data, each preset hot word corresponds to a reward value; and calculating, when there is a string matched with the preset hot word in the transcribed text, a target score of the transcribed text according to the reward value of the matched string and the score of the transcribed text, where the target score is used to determine the decoded text of the speech data. Hot word matching is performed on the transcribed text. If there is a matching hot word, the score of the transcribed text will be increased. The accuracy of decoding is improved without updating the model, and the operation is simple.

Abstract: A Macadamia integrifolia whitening extract and a preparation method thereof are disclosed. The preparation method includes: S1: carrying out a hot extraction on a crushed Macadamia integrifolia green peel using an ethanol solution as an extraction solvent to obtain a crude green peel extract; then enzymatically treating the crude green peel extract using a snailase to obtain a enzymatic hydrolysate; finally extracting the enzymatic hydrolysate using a petroleum ether, and taking an aqueous phase to obtain a green peel extract; S2: carrying out a hot extraction on crushed Sichuan lovase rhizome decoction pieces using an ethanol solution as an extraction solvent to obtain a Sichuan lovase rhizome extract; S3: dispersing the green peel extract and the Sichuan lovase rhizome extract in water to obtain a whitening extract.

Abstract: The present disclosure relates to the technical field of nut-derived fruit oil preparation, in particular to a method for extracting palmitoleic acid from Macadamia integrifolia and use thereof. In the method for extracting palmitoleic acid from Macadamia integrifolia, a fruit oil of the Macadamia integrifolia is purified by vacuum distillation, and an antioxidant is added during the vacuum distillation. A preparation method of the antioxidant includes the following steps: extracting a pulverized Macadamia integrifolia green peel using ethanol by heat reflux to obtain a green peel extract; extracting the green peel extract using petroleum ether, and then using ethyl acetate; collecting an ethyl acetate layer to obtain the antioxidant. The method can avoid easy oxidization and deterioration of oil during extracting and enriching the palmitoleic acid, and can enrich the palmitoleic acid in the fruit oil of the Macadamia integrifolia by not less than 3 times.

Abstract: A Macadamia integrifolia whitening extract and a preparation method thereof are disclosed. The preparation method includes: S1: carrying out a hot extraction on a crushed Macadamia integrifolia green peel using an ethanol solution as an extraction solvent to obtain a crude green peel extract; then enzymatically treating the crude green peel extract using a snailase to obtain a enzymatic hydrolysate; finally extracting the enzymatic hydrolysate using a petroleum ether, and taking an aqueous phase to obtain a green peel extract; S2: carrying out a hot extraction on crushed Sichuan lovase rhizome decoction pieces using an ethanol solution as an extraction solvent to obtain a Sichuan lovase rhizome extract; S3: dispersing the green peel extract and the Sichuan lovase rhizome extract in water to obtain a whitening extract.

Abstract: A nanometer niobium carbide/carbon nanotube reinforced diamond composite and a preparation method thereof, belonging to the field of materials science. The nanometer niobium carbide/carbon nanotube reinforced diamond composite is composed of nanometer niobium carbide/carbon nanotube composite powders, matrix powders and diamond grains, wherein the nanometer niobium carbide/carbon nanotube composite powders are the composites of nanometer niobium carbide which are evenly distributed in the surface defects and interior of the carbon nanotube, the nanometer niobium carbide/carbon nanotube reinforced diamond composite is prepared by mixing the nanometer niobium carbide/carbon nanotube composite powders, matrix powders and diamond grains uniformly and sintering with a hot pressing technique.

Abstract: The invention relates to a composite shock absorber for a polycrystalline diamond compact bit, comprising a drilling tool body having a water inlet, an impact body having a water outlet and forming a shock absorption cavity, a disc spring group having an annular pressing sleeve, a cylindrical torsion bar spring which has an external thread and a spline, is connected to the drilling tool body through threads and extended into an impactor and connected thereto through the spline, and the annular pressing sleeve, wherein bit vibration impact force is transmitted therebetween through a torsion transmission joint, and a bearing group is arranged between the lower end surface of the annular pressing sleeve and an annular step of the impact body. The composite shock absorber can weaken damage of the slippage effect to polycrystalline diamond compact cutting teeth, absorb axial vibration from a drill stem and prolong the service life of the bit.

Abstract: A wipe having a residual disinfectant property or efficacy is provided. A wipe having a residual disinfectant property provides an equal to or greater than 5 log reduction of bacteria even after multiple touches. The wipe has a substrate and a liquid formulation having a residual disinfectant property applied to the substrate. The liquid formulation is present in a ratio of weight of liquid formulation to weight of substrate in a range of 1:1 to 10:1. Preferably, the ratio of the weight of the liquid formulation to the weight of the wipe is 4:1 or <4:1.

Abstract: A nanometer niobium carbide/carbon nanotube reinforced diamond composite and a preparation method thereof, belonging to the field of materials science. The nanometer niobium carbide/carbon nanotube reinforced diamond composite is composed of nanometer niobium carbide/carbon nanotube composite powders, matrix powders and diamond grains, wherein the nanometer niobium carbide/carbon nanotube composite powders are the composites of nanometer niobium carbide which are evenly distributed in the surface defects and interior of the carbon nanotube, the nanometer niobium carbide/carbon nanotube reinforced diamond composite is prepared by mixing the nanometer niobium carbide/carbon nanotube composite powders, matrix powders and diamond grains uniformly and sintering with a hot pressing technique.

Abstract: A chemical formulation for imparting a textile with durable wicking, softening and antistatic properties comprising an amphoteric or betaine surfactant, and an alkoxysilane. A method of treating the textile with the chemical formulation as well as the treated textile and the articles made therefrom are provided.

Abstract: A synthetic sweat composition, sweat odor kit, and method of use are provided. The synthetic sweat composition comprises an odor-precursor of eccrine sweat and an odor pre-cursor of apocrine sweat. The method comprises combining a synthetic sweat composition with a mixture of body odor causing microorganisms or bacteria, applying the combination to a textile, incubating the textile, and establishing an odor measurement to rate the odor of each textile.

Abstract: Presented here is a handheld writing implement form factor for a mobile device. The shape of the device can correspond to the shape of a whiteboard marker. Due to the small size, the device does not have a physical keyboard or an onscreen keyboard and instead relies on environmental cues, gestural input, voice input, and touch input to interpret user instructions. For example, when the device determines from environmental cues that it is resting on a tabletop, a touch input consisting of a single press from the user is interpreted as an instruction to scroll the display. In other embodiments, the device can be used as a handheld writing implement, such as a computer stylus, or to control the device by handwriting in the air. Other uses of the device are disclosed such as making a payment, communicating with other appliances enabled for electronic communication, recording images with a gesture, etc.

Abstract: Presented here is a handheld writing implement form factor for a mobile device. The shape of the device can correspond to the shape of a whiteboard marker. Due to the small size, the device does not have a physical keyboard or an onscreen keyboard and instead relies on environmental cues, gestural input, voice input, and touch input to interpret user instructions. For example, when the device determines from environmental cues that it is resting on a tabletop, a touch input consisting of a single press from the user is interpreted as an instruction to scroll the display. In other embodiments, the device can be used as a handheld writing implement, such as a computer stylus, or to control the device by handwriting in the air. Other uses of the device are disclosed such as making a payment, communicating with other appliances enabled for electronic communication, recording images with a gesture, etc.