Abstract: A method of identifying defects in crystals includes the following steps. A silicon carbide crystal to be identified for defects is sliced to obtain a test piece. An etching process is performed on the test piece. Etching conditions of the etching process includes the following. An etchant including potassium hydroxide is used, and etching is performed at a temperature of 400° C. to 550° C. in an environment where dry air or oxygen is introduced, so as to form etching pits of threading edge dislocations (TED) and threading screw dislocations (TSD) in the test piece. After the etching process is performed, a diameter ratio (TED/TSD) of the etching pits of the threading edge dislocations (TED) and the threading screw dislocations (TSD) observed by an optical microscope in the test piece is in a range of 0.2 to 0.5.

Abstract: The anti-twist structure includes a base, a lens housing, an elastic sheet and a yoke member. The lens housing has a margin wall with a first protrusion, a second protrusion and a contact portion. The contact portion is extended outwardly the first protrusion, and the second protrusion is protruded from the contact portion. The first protrusion and the second protrusion are protruded along an axial direction substantially perpendicular to the margin wall. The elastic sheet is disposed on the contact portion. When the lens housing deflects from the horizontal reference line to a maximum value of the deflectable angle, the first protrusion abuts against an upper wall of the yoke member, the second protrusion abuts against the elastic sheet, and the contact portion abuts against the elastic sheet or the upper wall at the same time, whereby the lens housing and the yoke member interfere with each other.

Abstract: The anti-twist structure includes a base, a lens housing, an elastic sheet and a yoke member. The lens housing has a margin wall with a first protrusion, a second protrusion and a contact portion. The contact portion is extended outwardly the first protrusion, and the second protrusion is protruded from the contact portion. The first protrusion and the second protrusion are protruded along an axial direction substantially perpendicular to the margin wall. The elastic sheet is disposed on the contact portion. When the lens housing deflects from the horizontal reference line to a maximum value of the deflectable angle, the first protrusion abuts against an upper wall of the yoke member, the second protrusion abuts against the elastic sheet, and the contact portion abuts against the elastic sheet or the upper wall at the same time, whereby the lens housing and the yoke member interfere with each other.

Abstract: An array substrate, a display panel, and a display device. The array substrate includes a display area, a fan-out area, a bonding area, the fan-out area and the bonding area being arranged at a side of the display area along a first direction, the bonding area being arranged at a side of the fan-out area away from the display area, a substrate, a plurality of signal leads arranged on the substrate and located in the bonding area, and a plurality of pads configured to be electrically connected to a driver integrated circuit. The plurality of pads are stacked on the plurality of signal leads in a one-to-one correspondence and are electrically connected to the plurality of signal leads correspondingly.

Abstract: An anti-twist structure of a voice coil motor includes a base, a lens housing, a first elastic sheet, a second elastic sheet, a magnet, and a yoke member. The lens housing has first margin wall and a second margin wall, and a first protrusion extends from the first margin wall. The yoke member has a first wall, a connection wall, a second wall, and a side wall. The first wall is disposed above the first protrusion, and the second wall is above the first margin wall. The lens housing has a deflectable angle relative to a horizontal reference line. When the lens housing deflects to a maximum value of the deflectable angle, the first margin wall abuts against the second wall and/or the first protrusion abuts against the first wall.

Abstract: An operation image positioning method is disclosed. A point-cloud camera captures a point-cloud image of first and second positioning marks respectively fixed on a treated portion and an X-ray imaging machine. The first and second positioning marks within the point-cloud image are recognized to compute a first conversion module between the point-cloud camera and the treated portion and a second conversion module between the point-cloud camera and the X-ray imaging machine, thereby computing a third conversion module between the treated portion and the X-ray imaging machine. An image positioning camera captures a positioning image of the first positioning mark. The first positioning mark within the positioning image is recognized to compute a fourth conversion module between the image positioning camera and the treated portion. A fifth conversion module between the image positioning camera and the X-ray imaging machine is computed according to the third and fourth conversion modules.

Abstract: GalNAc monomers and GalNAc-oligonucleotide conjugates made using said GalNAc monomers, for example, GalNAc-bearing nucleic acids, e.g. sa-RNAs and siRNAs that may be useful in regulating expression of a target gene.

Abstract: Adhesive compositions comprising a polyester polyol that includes residues of at least one 2,2,4,4-tetraalkylcyclobutane-1,3-diol, including, for example, 2,2,4,4-tetramethylcyclobutane-1,3-diol (TMCD). Adhesive compositions may exhibit enhanced properties as compared to conventional adhesive compositions, and may be suitable for a wide variety of end use applications, including, flexible packaging, woodworking, automotive uses, and electronics.

Abstract: An information handling system may include at least one processor and a non-transitory memory coupled to the at least one processor. The information handling system may be configured to: receive information regarding a set of variables relating to a machine learning task for analyzing a target variable; perform principal component analysis (PCA) on the set of variables to determine a reduced set of variables; in response to a change in the plurality of variables, dynamically update the reduced set of variables; and determine at least one hyperparameter for the machine learning task based on the dynamically updated reduced set of variables.

Abstract: A separation apparatus suitable for separating plastic and silicone in a composite material includes a storage tank configured to store a hydrocarbon solvent, and a reaction tank fluidly connected to the storage tank and having a reaction space for placement of the composite material therein and for receiving the hydrocarbon solvent from the storage tank such that the composite material is immersed in the hydrocarbon solvent for separating the plastic and the silicone in the composite material. The plastic and the silicone in the composite material are insoluble in the hydrocarbon solvent.

Abstract: A handheld cutting tool includes a housing, a motor, a saw chain, a guide plate, and a blade sheath, where the motor is supported by the housing, the saw chain is driven by the motor to perform a cutting function, an end of the guide plate is supported by the housing and the guide plate is used for supporting and guiding the saw chain, and the blade sheath is formed with or connected to the first limiting portion, the housing or the guide plate is formed with a second limiting portion, and the first limiting portion and the second limiting portion are adaptable to each other so that the blade sheath is not separated from the handheld cutting tool at least under the action of gravity.

Abstract: A tackifier composition comprising at least one thermoplastic hydrocarbon resin and an antioxidant composition is provided; wherein a portion of the volatile organic compounds in the thermoplastic hydrocarbon resin has been removed; wherein the antioxidant composition comprises at least one primary antioxidant and at least one secondary antioxidant; and wherein the levels of individual volatile organic compound monitored in the tackifier composition are less than about 0.5 ppm as measured by GC/MS headspace analysis. Processes for producing the tackifier composition are also provided as well as adhesives comprising the tackifier compositions.

Abstract: A transport system is provided. The transport system includes a stocker configured to store an assigned wafer carrier and having a gate port. The transport system also includes a semiconductor apparatus configured to transmit a request signal including a processed time according to a processing wafer carrier loaded on the semiconductor apparatus. The transport system further includes a vehicle configured to transport the assigned wafer carrier from the gate port to the semiconductor apparatus and a control system configured to control the vehicle. When the control system receives the request signal, the control system controls the stocker to transport the assigned wafer carrier inside of the stocker to the gate port at a start time, which is earlier than the processed time, and the control system controls the vehicle to transport the assigned wafer carrier from the gate port to the semiconductor apparatus.

Abstract: A tackifier composition comprising at least one thermoplastic hydrocarbon resin and an antioxidant composition is provided; wherein a portion of the volatile organic compounds in the thermoplastic hydrocarbon resin has been removed; wherein the antioxidant composition comprises at least one primary antioxidant and at least one secondary antioxidant; and wherein the levels of individual volatile organic compound monitored in the tackifier composition are less than about 0.5 ppm as measured by GC/MS headspace analysis. Processes for producing the tackifier composition are also provided as well as adhesives comprising the tackifier compositions.

Abstract: A tackifier composition comprising at least one thermoplastic hydrocarbon resin and an antioxidant composition is provided; wherein a portion of the volatile organic compounds in the thermoplastic hydrocarbon resin has been removed; wherein the antioxidant composition comprises at least one primary antioxidant and at least one secondary antioxidant; and wherein the levels of individual volatile organic compound monitored in the tackifier composition are less than about 0.5 ppm as measured by GC/MS headspace analysis. Processes for producing the tackifier composition are also provided as well as adhesives comprising the tackifier compositions.

Abstract: A tackifier composition comprising at least one thermoplastic hydrocarbon resin and an antioxidant composition is provided; wherein a portion of the volatile organic compounds in the thermoplastic hydrocarbon resin has been removed; wherein the antioxidant composition comprises at least one primary antioxidant and at least one secondary antioxidant; and wherein the levels of individual volatile organic compound monitored in the tackifier composition are less than about 0.5 ppm as measured by GC/MS headspace analysis. Processes for producing the tackifier composition are also provided as well as adhesives comprising the tackifier compositions.

Abstract: A tackifier composition comprising at least one thermoplastic hydrocarbon resin and an antioxidant composition is provided; wherein a portion of the volatile organic compounds in the thermoplastic hydrocarbon resin has been removed; wherein the antioxidant composition comprises at least one primary antioxidant and at least one secondary antioxidant; and wherein the levels of individual volatile organic compound monitored in the tackifier composition are less than about 0.5 ppm as measured by GC/MS headspace analysis. Processes for producing the tackifier composition are also provided as well as adhesives comprising the tackifier compositions.

Abstract: An elastic electric-heating cupping jar includes a hollow convoluted jar body made of an elastic material, and further includes an electric heating device, where the electric heating device includes an electric heating wire and a connection fixture that are electrically connected to each other; the connection fixture includes a circuit board and a pluggable port; two poles of the electric heating wire and a wire connecting end of the pluggable port are electrically connected to the circuit board; and the electric heating device is encapsulated in a wall at a plane of a maximum jar body diameter, a center of the electric heating wire is located on or near an axial cross section with the maximum jar body diameter, and the pluggable port faces toward an outer surface of the jar body and is electrically connected to a controller outside the jar body and/or an external power supply.

Abstract: Adhesive compositions comprise a polyester polyol that includes residues of at least one 2, 2, 4, 4-tetraalkylcyclobutane-1, 3-diol, including, for example, 2, 2, 4, 4-tetramethylcyclobutane-1, 3-diol (TMCD). Adhesive compositions as described herein exhibit enhanced properties as compared to conventional adhesive compositions, and may be suitable for a wide variety of end use applications, including, flexible packaging, woodworking, automotive uses, and electronics.