Abstract: A separable screw according to an embodiment of the present disclosure includes a first module having a plurality of slits formed on an outer peripheral surface thereof by a plurality of rods, and a second module formed with a plurality of ribs inserted into the slits of the first module, in which the first module and the second module are detachably coupled, and when the second module is inserted into and coupled to the first module, the rib is inserted into the slit to form a gap between the rib and the slit, at least one first spiral protrusion is formed on an outer peripheral surface of the rod, and a groove retreated toward a central axis of the first module is formed on the first spiral protrusion located at an upper portion of the first module.

Abstract: Disclosed herein is an image shake correcting module. The image shake correcting module includes an optical module, a first holder, a first drive unit, a second holder, a second drive unit, a third holder, a housing, an outer cover, and a substrate. The optical module may be mounted in an inner space of the first holder. The first drive unit may include a first drive ball, a first magnet and a first coil for primary driving of the first holder. The first holder may be mounted in an inner space of the second holder. The second drive unit may include a second drive ball, a second magnet, and a second coil for secondary driving of the second holder. The second holder may be mounted in an inner space of the third holder. The third holder may be mounted in an inner space of the housing.

Abstract: A rheometer according to an embodiment includes a substrate on which an object to be measured is placed, a vibration unit configured to provide a vibration to the substrate, a plurality of probe units each including a quartz tuning fork and a contact member fixed to the quartz tuning fork, the contact member being able to contact the object, the plurality of probe units having different types of the contact members. Any one of the plurality of probe units is selected and contacts the object, and a controller configured to calculate a viscoelastic force of the object based on a vibration of the vibration unit and a vibration transmitted to the quartz tuning fork through the object from the vibration of the vibration unit.

Abstract: A Raman spectroscopy apparatus using a nano printing device is provided to perform Raman spectroscopy on nanoscale nanostructures printed from the nano printing device. The Raman spectroscopy apparatus includes a laser light source configured to generate and emit a laser light to the nanostructures, and a Raman detector configured to collect spectroscopic information from the light scattered by the nanostructures.

Abstract: The present disclosure relates to a system and methods for inducing pet movement in a metaverse environment. More particularly, the system is configured to enable a user to monitor an action of a pet and perform an interaction with the corresponding pet by using tools in various shapes and types including a toy capable of inducing an action of the pet, thereby being capable of satisfying an exercise amount required for the pet.

Abstract: The present disclosure relates to a wearable device for a pet and, more particularly, to a wearable device for the pet that is worn on body parts of a pet to collect information, including biometric information, movement information, surrounding environment information, or a combination thereof, detected from not only the pet but also surroundings of the pet. The device allows the collected detection information to be registered with a pet management server, and allows an authorized user to access the pet management server and view the detection information for the pet to extensively monitor health status and surroundings of the pet.

Abstract: The present disclosure relates to systems and methods for monitoring pets. More particularly, the system being configured such that, in order to remotely monitor behavior or condition of a pet, a wearable device is worn around a body portion of the pet, a signal detected by the wearable device is registered to a pet monitoring server via a repeater, and a user can access the pet monitoring server with a user terminal to remotely monitor the behavior or condition of the pet.

Abstract: The present disclosure relates to a necklace belt for a pet. More particularly, when a wearable sensor device for monitoring a bio-signal of the pet is coupled to the necklace belt for a pet and the necklace belt is worn around the pet, the necklace belt is easily and solidly bent according to a form of a body part of the pet, locked, not overturned on the body part of the pet, and not released even with repeated movements.

Abstract: The present disclosure relates to a wearable sensor apparatus and method for monitoring a pet body temperature, more particularly, the wearable sensor apparatus being worn on a body of the pet to measure the pet body temperature such that an owner of the pet remotely receives and monitors the measured body temperature, causing no trouble on a skin of the pet even when the wearable sensor apparatus is in contact with the pet skin, and having improved thermal conductivity such that the body temperature can be accurately measured.

Abstract: A construction machinery bucket part includes a body including a low alloy cast iron, and a wear resistant tip cast bonded to an end portion of the body and including a white cast iron. The construction machinery bucket part includes dissimilar materials, and has improved economic feasibility and wear resistance.

Abstract: The present disclosure relates to juice extractor comprising a cutting part for cutting a material for juice extraction beforehand by rotation above a screw, wherein the cutting part is formed in a dual structure of a core body and an outer shell covering the outer side of the core body with a material different from the core body.

Abstract: A rheometer according to an embodiment includes a substrate on which an object to be measured is placed, a vibration unit configured to provide a vibration to the substrate, a plurality of probe units each including a quartz tuning fork and a contact member fixed to the quartz tuning fork, the contact member being able to contact the object, the plurality of probe units having different types of the contact members. Any one of the plurality of probe units is selected and contacts the object, and a controller configured to calculate a viscoelastic force of the object based on a vibration of the vibration unit and a vibration transmitted to the quartz tuning fork through the object from the vibration of the vibration unit.

Abstract: The present disclosure relates to juice extractor comprising a cutting part for cutting a material for juice extraction beforehand by rotation above a screw, wherein the cutting part is formed in a dual structure of a core body and an outer shell covering the outer side of the core body with a material different from the core body.

Abstract: A Raman spectroscopy apparatus using a nano printing device is provided to perform Raman spectroscopy on nanoscale nanostructures printed from the nano printing device. The Raman spectroscopy apparatus includes a laser light source configured to generate and emit a laser light to the nanostructures, and a Raman detector configured to collect spectroscopic information from the light scattered by the nanostructures.

Abstract: A construction machinery bucket part includes a body including a low alloy cast iron, and a wear resistant tip cast bonded to an end portion of the body and including a white cast iron. The construction machinery bucket part includes dissimilar materials, and has improved economic feasibility and wear resistance.

Abstract: A wire sawing apparatus of one embodiment comprises: a wire for cutting an ingot; an ingot conveyor unit for conveying the ingot to the wire; a nozzle for supplying slurry to the wire; and a dispersed slurry blocking unit disposed above the ingot sawed by the wire, so as to absorb at least a part of the slurry dispersed from the lateral sides of the ingot cut by the wire.

Abstract: The present disclosure relates to a cast steel for construction equipment bucket parts and parts for a construction equipment bucket manufactured by using the same, and the cast steel includes 0.27 to 0.34 wt % of carbon (C), 1.2 to 1.8 wt % of chromium (Cr), 0.8 to 1.7 wt % of silicon (Si), 1.0 to 1.4 wt % of manganese (Mn), 0.2 to 0.4 wt % of molybdenum (Mo), 0.2 to 0.4 wt % of nickel (Ni), and a balance of iron and impurities.

Abstract: A wire sawing apparatus of one embodiment comprises: a wire for cutting an ingot; an ingot conveyor unit for conveying the ingot to the wire; a nozzle for supplying slurry to the wire; and a dispersed slurry blocking unit disposed above the ingot sawed by the wire, so as to absorb at least a part of the slurry dispersed from the lateral sides of the ingot cut by the wire.

Abstract: The present disclosure relates to a cast steel for construction equipment bucket parts and parts for a construction equipment bucket manufactured by using the same, and the cast steel includes 0.27 to 0.34 wt % of carbon (C), 1.2 to 1.8 wt % of chromium (Cr), 0.8 to 1.7 wt % of silicon (Si), 1.0 to 1.4 wt % of manganese (Mn), 0.2 to 0.4 wt % of molybdenum (Mo), 0.2 to 0.4 wt % of nickel (Ni), and a balance of iron and impurities.

Abstract: Provided is a wafer polishing apparatus. The wafer polishing apparatus comprises a first polishing part and a second polishing part. The first part is disposed at a position higher than a top surface of a wafer and configured to be rotated on a first rotation axis. The second polishing part is disposed at a position lower than a bottom surface of the wafer and configured to be rotated on a second rotation axis.