Abstract: The present disclosure provide a food processor, comprising: a base assembly; a food processing cup can be mounted on the base assembly, and including a cup body and a working screw rotatably mounted in the cup body, the cup body can be used to store food juice, and a first slag outlet is provided on the cup body or a second slag outlet is provided in the cup body; a feeding assembly is sealed and mounted on the cup mouth end of the cup body; a slag receiving device is hermetically connected to the first slag outlet for collecting food waste, or the slag receiving device is located in the cup body and connected to the second slag outlet for collecting food waste; a sealed cavity formed between the cup body, the feeding assembly, and the slag receiving device to conduct them to each other; and an extraction assembly can communicate with the sealed cavity and is used for extracting air in the sealed cavity.

Abstract: The present invention relates to the field of fluid heat transfer, and discloses a heat transfer enhancement pipe as well as a cracking furnace and an atmospheric and vacuum heating furnace including the same. The heat transfer enhancement pipe (1) includes a pipe body (10) of tubular shape having an inlet (100) for entering of a fluid and an outlet (101) for said fluid to flow out; internal wall of the pipe body (10) is provided with a fin (11) protruding towards interior of the pipe body (10), wherein the fin (11) has one or more fin sections extending spirally in the axial direction of the pipe body (10), and each fin section has a first end surface facing the inlet (100) and a second end surface facing the outlet (101), at least one of the first end surface and the second end surface of at least one of the rib sections is formed as a transition surface along spirally extending direction.

Abstract: The present invention relates to the field of fluid heat transfer, and discloses a heat transfer enhancement pipe as well as a cracking furnace and an atmospheric and vacuum heating furnace including the same. The heat transfer enhancement pipe (1) includes a pipe body (10) of tubular shape having an inlet (100) for entering of a fluid and an outlet (101) for said fluid to flow out; the internal wall of the pipe body (10) is provided with a fin (11) protruding towards the interior of the pipe body (10), the fin (11) spirally extends in an axial direction of the pipe body (10), wherein at least one of a heat insulator (14) and a heat insulating layer (17) is provided at the outside of the pipe body (10). The heat transfer enhancement pipe can reduce thermal stress of itself, thereby increasing service life of the heat transfer enhancement pipe.

Abstract: Compositions for specifically cleaving target sequences in retroviruses include nucleic acids encoding a Clustered Regularly Interspace Short Palindromic Repeat (CRISPR) associated endonuclease and a guide RNA sequence complementary to one or more target nucleic acid sequences in a retrovirus genome.

Abstract: A single-layer shock-absorbing sports helmet formed by steam, including a hard shell and an EPP layer. The hard shell is fitted and bonded with the EPP layer by glue, and the hard layer covers an outer surface of the EPP layer. The EPP layer is made of an EPP material which is waterproof and heat resisting and insulating, such that the wearing comfort of the helmet is effectively improved. The hard shell and the EPP layer are bonded by glue, so less materials are used, thus the weight and cost will be reduced without affecting the use of the helmet. In addition, the helmet also has excellent impact resistance.

Abstract: The present invention relates to the field of fluid heat transfer, and discloses a heat transfer enhancement pipe as well as a cracking furnace and an atmospheric and vacuum heating furnace including the same. The heat transfer enhancement pipe (1) includes a pipe body (10) of tubular shape having an inlet (100) for entering of a fluid and an outlet (101) for said fluid to flow out; internal wall of the pipe body (10) is provided with a fin (11) protruding towards interior of the pipe body (10), the fin (11) spirally extends in an axial direction of the pipe body (10), wherein a height of the fin (11) gradually increases from one end in at least a part extension of the fin. The heat transfer enhancement pipe can reduce thermal stress of itself, thereby increasing service life of the heat transfer enhancement pipe.

Abstract: A magnetic core of an electric motor includes a central portion and a plurality of teeth extending outwardly from the central portion, the teeth disposed along a circumferential direction of the central portion. Each tooth includes a tooth body, two neck portions and two crown portions, the neck portions respectively connecting the crown portions to the tooth body, the two crown portions respectively extending beyond opposite sides of the tooth body. Each of the two neck portions of each tooth has a minimum width which is 0.1˜0.3 times of the width of the tooth body. The present invention further provides an electric motor that employs the magnetic core which can increase the peak value of the cogging torque of the motor.

Abstract: A motor includes a stator, and a rotor rotatable to the stator. The stator includes a magnetic core, a plurality of windings, and at least one shielding member mounted to one of opposite ends of the magnetic core. The magnetic core includes a yoke portion and a plurality of teeth extending from the yoke portion. The windings are correspondingly wound on the teeth. Said at least one shielding member is grounded. The rotor and said at least one shielding member cooperatively bound a shielding space for the windings.

Abstract: The present disclosure relates to a heat transfer tube and a racking furnace using the heat transfer tube. The heat transfer tube comprises a twisted baffle arranged in an inner wall of the tube, said twisted baffle extending spirally along an axial direction of the heat transfer tube. The twisted baffle is provided with a non-through gap extending along an axial direction of the heat transfer tube from an end to the other end of the twisted baffle. The heat transfer tube and cracking furnace according to the present disclosure have good heat transfer effects and small pressure loss.

Abstract: A heat transfer tube includes a twisted baffle arranged in an inner wall of the tube. The twisted baffle extends spirally along an axial direction of the heat transfer tube. The twisted baffle is provided with a non-through gap extending along an axial direction of the heat transfer tube from an end to the other end of the twisted baffle. A cracking furnace uses the heat transfer tube. The heat transfer tube and cracking furnace have good heat transfer effects and small pressure loss.

Abstract: Compositions for specifically cleaving target sequences in retroviruses include nucleic acids encoding a Clustered Regularly Interspace Short Palindromic Repeat (CRISPR) associated endonuclease and a guide RNA sequence complementary to one or more target nucleic acid sequences in a retrovirus genome.

Abstract: A magnetic core of an electric motor includes a central portion and a plurality of teeth extending outwardly from the central portion, the teeth disposed along a circumferential direction of the central portion. Each tooth includes a tooth body, two neck portions and two crown portions, the neck portions respectively connecting the crown portions to the tooth body, the two crown portions respectively extending beyond opposite sides of the tooth body. Each of the two neck portions of each tooth has a minimum width which is 0.1˜0.3 times of the width of the tooth body. The present invention further provides an electric motor that employs the magnetic core which can increase the peak value of the cogging torque of the motor.

Abstract: This disclosure provides calculation methods for the reflectivity of normal incident wave on the interface, the absolute reflection critical angle of the wave, the relative reflection critical angle of the wave, and the refraction-reflection symmetrical angle of the wave. These calculation methods can calculate the reflected wave energy on interface, the angle at which the incident wave would all be reflected on the interface and wave energy would be trapped, the angle at which the incident wave begins to be reflected, and the angle at which the reflected wave energy equals the refracted wave energy. The provided calculation methods could be widely used in various fields such as light, electromagnetic waves, sound waves and etc.

Abstract: The present invention relates to compositions and methods for reactivation of HIV in vivo or in vitro. latently infected cell. In one embodiment, the present invention uses the CRISPR/Cas9 system in combination with the MS2 bacteriophage coat protein-mediated synergistic activation mediator (SAM) system to provide enhanced transcriptional activation of the HIV genome.

Abstract: An electrical connector having an insulative housing having a mating cavity and a plurality of passageways, a plurality of electrical contacts received in the corresponding passageways and a sealing member received in the mating cavity. The insulative housing defines a front face and a mounting wall, the mating cavity is formed between the front face and the mounting wall. Each electrical contact has a contacting portion, a tail portion, and a main portion connecting the contacting portion with the tail portion, each main portion defines a plurality of barbs on both sides thereof. The sealing member has a base portion and at least one opening defined in the base portion for tail portions passing through. At least one electrical contact defines a wing on one side thereof, and the sealing member is restricted between the wing and the mounting wall.

Abstract: An electrical connector having an insulative housing having a mating cavity and a plurality of passageways, a plurality of electrical contacts received in the corresponding passageways and a sealing member received in the mating cavity. The insulative housing defines a front face and a mounting wall, the mating cavity is formed between the front face and the mounting wall. Each electrical contact has a contacting portion, a tail portion, and a main portion connecting the contacting portion with the tail portion, each main portion defines a plurality of barbs on both sides thereof. The sealing member has a base portion and at least one opening defined in the base portion for tail portions passing through. At least one electrical contact defines a wing on one side thereof, and the sealing member is restricted between the wing and the mounting wall.

Abstract: The present disclosure provides a steam cracking process, comprising heating a liquid feed stock in a convection section of a cracking furnace and subsequently conveying the material to a radiant section of the cracking furnace for cracking reaction therein, wherein a monoolefin-containing stream is conveyed to the cracking furnace for cracking reaction through at least one of modes A to C.

Abstract: The present disclosure relates to a heat transfer tube and a cracking furnace using the heat transfer tube. The heat transfer tube comprises a twisted baffle arranged in an inner wall of the tube, said twisted baffle extending spirally along an axial direction of the heat transfer tube. The twisted baffle defines a closed circle viewed from an end of the heat transfer tube. Along the trajectory of the circle a casing is arranged, which is fixedly connected to a radial inner end of the twisted baffle. The twisted baffle is provided with a plurality of holes. The heat transfer tube according to the present disclosure has a good heat transfer effect and small pressure loss.

Abstract: Compositions and methods are provided for sensitizing neoplastic cells to radiotherapy. The invention provides aptamer-inhibitory nucleic acid chimeras that selectively inliibit the expression of radiosensitizing genes in neoplastic cells expressing a cell surface molecule that binds the aptamer.

Abstract: The present disclosure relates to a heat transfer tube and a racking furnace using the heat transfer tube. The heat transfer tube comprises a twisted baffle arranged in an inner wall of the tube, said twisted baffle extending spirally along an axial direction of the heat transfer tube. The twisted baffle is provided with a non-through gap extending along an axial direction of the heat transfer tube from an end to the other end of the twisted baffle. The heat transfer tube and cracking furnace according to the present disclosure have good heat transfer effects and small pressure loss.