Abstract: A method and system of generalized balanced few-shot learning using only novel data without old data is proposed. The method of generalized balanced few-shot learning using only novel data without old data proposed in the present disclosure includes pre-training stage for training a feature extractor and a classifier of a training model with base data through a pre-training unit and fine-tuning stage for freezing the feature extractor through a fine-tuning unit, training a joint linear classifier capable of inferring base classes and novel classes, and performing weight normalization to achieve zero-mean and balanced variance.

Abstract: A gripper includes a body part, a finger base part coupled to the body part to be rotatable, the finger base part including a first finger base part and a second finger base part configured such that when the first finger base part is rotated in a first direction with respect to the body part, the second finger base part is provided to be rotatable in a second direction opposite the first direction with respect to the body part, and a finger part coupled to a first side of the body part or the finger base part to be reciprocal.

Abstract: A gripper includes a body part, a finger base part coupled to the body part, and a finger part coupled to a first side of the body part or the finger base part and coupled to the body part or the finger base part to be reciprocal, wherein the finger part comprises a first link structure and a second link structure, sides of which are coupled to the finger base part, respectively, and wherein, in the first link structure and the second link structure, a first support area of the first link structure and a second support area of the second link structure reciprocate in only one of a plurality of directions that cross a direction in which the finger part reciprocates with respect to the finger base part.

Abstract: An apparatus for embedding a sentence feature vector according to an embodiment includes a sentence acquisitor configured to acquire a first sentence and a second sentence, each including one or more words; a vector extractor configured to extract a first feature vector corresponding to the first sentence and a second feature vector corresponding to the second sentence by independently inputting each of the first sentence and the second sentence into a feature extraction network; and a vector compressor configured to compress the first feature vector and the second feature vector into a first compressed vector and a second compressed vector, respectively, by independently inputting each of the first feature vector and the second feature vector into a convolutional neural network (CNN)-based vector compression network.

Abstract: An embodiment device includes an input module including a motor configured to generate a rotational force, an output module configured to receive power from the input module to be rotatable, and a connection module having a first side coupled to the input module and a second side, opposite the first side, coupled to the output module, wherein the connection module is configured to transmit the power from the input module to the output module.

Abstract: An embodiment joint structure includes a first connection link configured to be fixed to one side of a wearer, a second connection link coupled to the first connection link to be rotatable about a first rotation axis, a third connection link coupled to the first connection link to be rotatable about a second rotation axis spaced apart from the first rotation axis, and a fourth connection link, a first side of which is coupled to the second connection link to be rotatable about a third rotation axis and a second side of which is coupled to the third connection link to be rotatable about a fourth rotation axis spaced apart from the third rotation axis, wherein an imaginary first extension axis, an imaginary second extension axis, an imaginary third extension axis, and an imaginary fourth extension axis intersect each other in an intersection area.

Abstract: A titanium alloy having ultrahigh strength and ultralow elastic modulus, and showing linear elastic deformation behavior is disclosed. The titanium alloy (Ti-20Nb-5Zr-1Fe-O) of the present invention consists of titanium, niobium, zirconium, iron and oxygen. More specifically, the amount of niobium is 18 to 22 at. %, the amount of zirconium is 3 to 7 at. %, the amount of iron is 0.5 to 3.0 at. %, the amount of oxygen is 0.1 to 1.0 wt. %, and the balance is titanium.

Abstract: There is provided a Ti—Al-based alloy ingot having ductility at room temperature, in which the Ti—Al-based ingot has a lamellar structure in which ?2 phases and ? phases are arranged sequentially and regularly, and a thickness ratio ?/?2 of the ? phase to the ?2 phase is equal to or more than 2. There is also provided a Ti—Al-based alloy ingot having ductility at room temperature, in which the Ti—Al-based alloy ingot has a lamellar structure in which ?2 phases and ? phases are arranged sequentially and regularly, the ? phase has a thickness of 100 nm to 200 nm, and the ?2 phase has a thickness of 100 nm or less.

Abstract: An engine for converting thermal energy to kinetic energy is provided. The engine includes a first zone and a second zone and a movable loop, which extends between the first zone and the second zone. Containers are attached to the loop such that the loop and the containers are movable conjointly between the first zone and the second zone. Each of the containers is adapted to receive a varying amount of a working fluid therein and is adapted to be in a plurality of states, including a first state, in which it contains a first amount of the working fluid, and a second state, in which it contains a second amount of the working fluid, the first amount being smaller than the second amount. Each of the containers is caused to be in its first state as it moves through the first zone and in its second state as it moves through the second zone so as to impart motion to the loop.

Abstract: The present invention relates to A titanium-aluminum-based alloy comprising: 40 to 46 at % of aluminum (Al); 3 to 6 at % of niobium (Nb); 0.3 to 0.5 at % of creep-property enhancer; at least any one of 1 to 3 at % of tungsten (W) and 1 to 3 at % of chrome (Cr); and the balance of titanium (Ti), wherein the creep-property enhancer comprises silicon (Si) and boron (B), wherein the boron is added at 0.05 to 0.2 at %.

Abstract: An engine for converting thermal energy to kinetic energy includes a first zone, a second zone, and a movable loop extending between the first zone and the second zone. Containers are attached to the loop such that the loop and the containers are movable conjointly between the first zone and the second zone. Each of the containers is adapted to receive a varying amount of a working fluid therein and is adapted to be in a plurality of states, including a first state, in which it contains a first amount of the working fluid, and a second state, in which it contains a second, larger amount of the working fluid. Each of the containers is caused to be in its first state as it moves through the first zone and in its second state as it moves through the second zone so as to impart motion to the loop.

Abstract: A lamellar titanium-aluminium (TiAl) alloy having a beta-gamma phase according to the present invention contains aluminum (Al) of 40˜46 at %, niobium (Nb) of 3˜6 at %, a creep resistance enhancer of 0.2˜0.4 at %, a softening resistance enhancer of 2 at %, and the balance of titanium (Ti) and is manufactured by vacuum arc melting.

Abstract: In a Ti—Ni alloy thin film, Ti and Ni are mixed and deposited on a base material by putting a Ti target and an Ni target at a predetermined distance from each other in a co-sputtering apparatus and simultaneously sputtering the targets by applying different voltages. A method of fabricating a Ti—Ni alloy thin film using co-sputtering includes a target preparing step that prepares a Ti target, a Ni target and a base material, a target disposing step that puts the Ti target and the Ni target at a predetermined distance from each other in a co-sputtering apparatus, an apparatus setting step that sets work conditions of the co-sputtering apparatus, and a thin film depositing step that forms a Ti—Ni alloy thin film with Ti and Ni mixed on the base material by operating the co-sputtering apparatus.

Abstract: There is provided a Ti—Al-based alloy ingot having ductility at room temperature, in which the Ti—Al-based ingot has a lamellar structure in which ?2 phases and ? phases are arranged sequentially and regularly, and a thickness ratio ?/?2 of the ? phase to the ?2 phase is equal to or more than 2. There is also provided a Ti—Al-based alloy ingot having ductility at room temperature, in which the Ti—Al-based alloy ingot has a lamellar structure in which ?2 phases and ? phases are arranged sequentially and regularly, the ? phase has a thickness of 100 nm to 200 nm, and the ?2 phase has a thickness of 100 nm or less.

Abstract: A titanium alloy having ultrahigh strength and ultralow elastic modulus, and showing linear elastic deformation behavior is disclosed. The titanium alloy (Ti-20Nb-5Zr-1Fe-O) of the present invention consists of titanium, niobium, zirconium, iron and oxygen. More specifically, the amount of niobium is 18 to 22 at. %, the amount of zirconium is 3 to 7 at. %, the amount of iron is 0.5 to 3.0 at. %, the amount of oxygen is 0.1 to 1.0 wt. %, and the balance is titanium.

Abstract: An engine for converting thermal energy to kinetic energy is provided. The engine includes a first zone and a second zone and a movable loop, which extends between the first zone and the second zone. Containers are attached to the loop such that the loop and the containers are movable conjointly between the first zone and the second zone. Each of the containers is adapted to receive a varying amount of a working fluid therein and is adapted to be in a plurality of states, including a first state, in which it contains a first amount of the working fluid, and a second sate, in which it contains a second amount of the working fluid, the first amount being smaller than the second amount. Each of the containers is caused to be in its first state as it moves through the first zone and in its second state as it moves through the second zone so as to impart motion to the loop.

Abstract: An engine for converting thermal energy to kinetic energy is provided. The engine includes a body of fluid having a first zone and a second zone, a thermal energy source thermally connected to the first zone for providing thermal energy thereto, and a thermal energy sink thermally connected to the second zone for removing thermal energy therefrom such that the first zone has a temperature greater than the second zone. The engine further includes a movable loop, which extends between the first zone and the second zone, and a plurality of containers which are positioned in the body of fluid and attached to the loop such that the loop and the containers move conjointly between the first zone and the second zone. Each of the containers expands to a first volume when it is in one of the first and second zones, and contracts to a second volume when it is in the other one of the first and second zones.

Abstract: An engine for converting thermal energy to kinetic energy is provided. The engine includes a body of fluid having a first zone and a second zone, a thermal energy source thermally connected to the first zone for providing thermal energy thereto, and a thermal energy sink thermally connected to the second zone for removing thermal energy therefrom such that the first zone has a temperature greater than the second zone. The engine further includes a movable loop, which extends between the first zone and the second zone, and a plurality of containers which are positioned in the body of fluid and attached to the loop such that the loop and the containers move conjointly between the first zone and the second zone. Each of the containers expands to a first volume when it is in one of the first and second zones, and contracts to a second volume when it is in the other one of the first and second zones.

Abstract: The present invention provides a portable exercise device including a base having first and second opposite ends. The device also includes at least one resistance member pivotally mounted to the base between the first and second ends. The resistance member is pivotable between a first orientation, in which the resistance member is positioned generally upright, and a second orientation, in which the resistance member is pivoted away from the first end toward the second end. At least one urging member is coupled to the base and the resistance member for urging the resistance member toward the first orientation so as to provide resistance when the resistance member is pivoted from the first orientation toward the second orientation.

Abstract: An engine is powered by a hot liquid zone and a cold liquid zone. A plurality of fluid-tight containers, each which contains a working fluid which expands when exposed to the hot liquid zone and contracts when exposed to the cold liquid zone, are attached to a loop which rotates over sprockets attached to shafts. The difference in the buoyant forces acting on the containers exposed to the hot liquid zone versus the buoyant forces acting on the containers exposed to the cold liquid zone produces motion in the loop which imparts rotational kinetic energy to the shafts.