Abstract: An alkaline protease mutant, and a gene, engineered strain, a preparation method and application thereof are provided. The method comprises the following steps of extracting genome DNA of Bacillus clausii, performing PCR amplification to obtain a wild-type alkaline protease gene sequence, mutating the wild-type alkaline protease gene obtained by the amplification through an error-prone PCR, performing high-throughput screening to obtain a plurality of highly active alkaline protease genes, performing DNA shuffling on the highly active alkaline protease genes, and performing screening to obtain eight alkaline protease mutant genes with higher activity.

Abstract: Utilization of past dynamics sample(s), that reflect past contact physics information, in training and/or utilizing a neural network model. The neural network model represents a learned value function (e.g., a Q-value function) and that, when trained, can be used in selecting a sequence of robotic actions to implement in robotic manipulation (e.g., pushing) of an object by a robot. In various implementations, a past dynamics sample for an episode of robotic manipulation can include at least two past images from the episode, as well as one or more past force sensor readings that temporally correspond to the past images from the episode.

Abstract: A heater and a vaporization device using the same are provided. The heater comprises an end for insertion into a cartridge, a body having a sidewall and at least one opening on the sidewall, and a chamber inside the body. The end has an outlet. The chamber and the opening provide an airflow path for an aerosol to be vented outside the heater through the outlet. The aerosol is generated from the vaporizable material when the body is heated.

Abstract: A heater and a vaporization device using the same are provided. The heater comprises an end for insertion into a cartridge, a body having a sidewall and at least one opening on the sidewall, and a chamber inside the body. The end has an outlet. The chamber and the opening provide an airflow path for an aerosol to be vented outside the heater through the outlet. The aerosol is generated from the vaporizable material when the body is heated.

Abstract: Disclosed are an electronic cigarette and a vaporizer thereof which are suitable for adjusting air inflow with a single hand. The electronic cigarette vaporizer includes a vaporizer base and a liquid reservoir connected to the vaporizer. An atomizing cavity is formed by an internal cavity obtained by the connection of the liquid reservoir and the vaporizer base. An air inlet passage communicated with the atomizing cavity is arranged at the liquid reservoir. An adjusting knob at the entrance of the air inlet passage for adjusting air inflow is also arranged at the liquid reservoir. An air inlet is arranged at the adjusting knob. By rotating the adjusting knob, the air inflow can be adjusted by relative position changes of the air inlet and the entrance of the air inlet passage.

Abstract: An electronic vaporization device with activation protection is provided. The electronic vaporization device includes a heater for heating a vaporizable material and a compartment housing the vaporizable material, said compartment being thermally connected to the heater. The electronic vaporization device further includes a power source providing electric power to the heater, said electric power being converted to thermal power. The electronic vaporization device further includes two or more contact points disposed on the outside surface of the electronic vaporization device. The electric power is provided when the two or more contact points are physically connected to an object having a resistance within a predetermined range.

Abstract: A heater and a vaporization device using the same are provided. The heater comprises an end for insertion into a cartridge, a body having a sidewall and at least one opening on the sidewall, and a chamber inside the body. The end has an outlet. The chamber and the opening provide an airflow path for an aerosol to be vented outside the heater through the outlet. The aerosol is generated from the vaporizable material when the body is heated.

Abstract: A quick connector for removable join of two pipes is provided by the present disclosure, which includes: a quick joint, an elastic pressing sleeve and a quick connection body; wherein the quick joint is a member for passing water, and is composed of a water pipe joint and a plug-in portion; an outer side wall of the plug-in portion is provided with a fixing groove and sealing ring grooves; an inner side wall of the elastic pressing sleeve is provided with an elastic insert that is capable of being ejected outwardly, and the elastic insert is disposed on the inner side wall of the elastic pressing sleeve in a cross sectional direction and extends inwardly.

Abstract: A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines (“L”) and arcs (“A”) connected according to a sequence from the center of a root to the center of an adjacent cog of L1-A1-L2-A2-L3 for the upper profile and A3-L5-A4-L6, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of L1 plus the radius of A1 equal to or within 20% of the radius of A3. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.

Abstract: A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines (“L”) and arcs (“A”) connected according to a sequence from the center of a root to the center of an adjacent cog of L1-A1-L2-A2-L3 for the upper profile and A3-L5-A4-L6, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of L1 plus the radius of A1 equal to or within 20% of the radius of A3. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.

Abstract: A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines (“L”) and arcs (“A”) connected according to a sequence from the center of a root to the center of an adjacent cog of L1-A1-L2-A2-L3 for the upper profile and A3-L5-A4-L6, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of L1 plus the radius of A1 equal to or within 20% of the radius of A3. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.

Abstract: A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines (“L”) and arcs (“A”) connected according to a sequence from the center of a root to the center of an adjacent cog of L1-A1-L2-A2-L3 for the upper profile and A3-L5-A4-L6, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of L1 plus the radius of A1 equal to or within 20% of the radius of A3. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.

Abstract: A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines (“L”) and arcs (“A”) connected according to a sequence from the center of a root to the center of an adjacent cog of L1-A1-L2-A2-L3 for the upper profile and L4-A3-L5-A4-L6, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of L1 plus the radius of A1 equal to or within 20% of the sum of the length of L4 plus the radius of A3. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.

Abstract: A double-cogged V-belt with the upper and lower cog profiles symmetric and having lines (“L”) and arcs (“A”) connected according to a sequence from the center of a root to the center of an adjacent cog of L1-A1-L2-A2-L3 for the upper profile and L4-A3-L5-A4-L6, and with at least one upper root and one lower root substantially aligned with each other, and with the sum of the length of L1 plus the radius of A1 equal to or within 20% of the sum of the length of L4 plus the radius of A3. The upper and lower pitches may be equal and all the roots aligned, or there may be more upper cogs than lower cogs. Some or all arcs and lines may be connected tangentially.