Abstract: A bolt feeder is for supplying a bolt to a resistance welding machine that performs resistance-welding of a workpiece and the bolt using a lower electrode. The bolt feeder comprises a holding unit configured to receive the bolt fed by a bolt feeding unit with a head located above a shaft, a moving unit configured to move the holding unit, and a pusher member configured to protrude from and retract into a tip end of the upper electrode. The bolt includes a projection on a top surface of the head which is opposite to a surface provided with the shaft. The lower electrode includes an insertion hole into which the shaft is inserted. The shaft is inserted into the insertion hole by the pusher member protruding from the tip end of the upper electrode and pushes an area of the top surface where the projection is absent.

Abstract: A component supply device is configured to feed a component having a through hole to a target position. The component supply includes: a rod including at its distal end a holding portion to be inserted into the through hole; an actuator; a valve mounted on the rod; and a fixing portion by which the valve that advances with the rod passes. The rod includes a gas outlet located in an outer periphery of the holding portion and configured to blow gas rearward, and a gas passage extending inside the rod and configured to send gas supplied from a gas source to the gas outlet. The valve includes a push switch configured to be switched between an advanced attitude and a withdrawn attitude, and a biasing unit configured to bias the push switch to the withdrawn attitude. The fixing portion includes a pressing wall portion facing the push switch.

Abstract: The present invention provides a novel copolymer available for a drug delivery technique. More particularly, a novel copolymer for a drug delivery carrier targeting a tumor is provided. The present invention relates to a copolymer comprising structural units represented by the following formulas (A), (B), and (C): wherein R1, R2, and R3 are the same or different and represent a hydrogen atom or a C1-3 alkyl group, R4 represents a C1-3 alkyl group, R5 represents a hydrogen atom, a C1-18 alkyl group, a 3- to 8-membered cycloalkyl group optionally having a substituent, an adamantyl group, a C6-18 aryl group optionally having a substituent, or a 5- to 10-membered heteroaryl group optionally having a substituent, X1, X2, and X3 are the same or different and represent an oxygen atom, a sulfur atom, or N—R7, R6 represents a hydrogen atom, a leaving group, or a linker, R7 represents a hydrogen atom or a C1-3 alkyl group, m represents an integer of 1 to 100, and n represents an integer of 0 to 3.

Abstract: A component supply device is configured to feed a component having a through hole to a target position. The component supply includes: a rod including at its distal end a holding portion to be inserted into the through hole; an actuator; a valve mounted on the rod; and a fixing portion by which the valve that advances with the rod passes. The rod includes a gas outlet located in an outer periphery of the holding portion and configured to blow gas rearward, and a gas passage extending inside the rod and configured to send gas supplied from a gas source to the gas outlet. The valve includes a push switch configured to be switched between an advanced attitude and a withdrawn attitude, and a biasing unit configured to bias the push switch to the withdrawn attitude. The fixing portion includes a pressing wall portion facing the push switch.

Abstract: A laser processing apparatus for processing a workpiece includes a holding table that holds the workpiece and a laser beam irradiation unit that applies a laser beam to the workpiece held on the holding table. The laser beam irradiation unit has a laser oscillator that emits the laser beam, a condenser that focuses the laser beam emitted from the laser oscillator, at least one optical component that guides the laser beam from the laser oscillator to the condenser, a casing that accommodates the at least one optical component, and an ionizer that is disposed inside the casing and captures contaminants that are present inside the casing.

Abstract: A component transfer device includes an integration path through which both of a regular component and a defective component are to be transported, and a sorting gauge that is provided at the downstream end of the integration path and sorts the regular component and the defective component. A discharge path through which the defective component passes extends to incline in the width direction of the integration path. The sorting gauge includes a gauge body, a sorting path extending through the gauge body and into which the regular component is allowed to advance while the defective component is not allowed to advance, and a guide surface that is disposed at the gauge body so as to spread toward the discharge path and that guides the defective component to the discharge path when the defective component comes into contact with the guide surface.

Abstract: A laser oscillator support table includes a base, a fixed plate supported over the base with intermediary of a Z-axis direction movement unit, and a Y-axis direction moving plate mounted on the fixed plate, movable orthogonal to an X-axis direction. An optical path direction of the beam emitted from a laser oscillator supported by the laser oscillator support table is defined as the X-axis direction. The laser oscillator support table further includes a rotating plate that is mounted on the Y-axis direction moving plate rotatably around a rotation center pin fixed to the Y-axis direction moving plate and supports the laser oscillator, a Y-axis direction movement unit that moves the Y-axis direction moving plate in the Y-axis direction, and a rotational movement unit that rotates the rotating plate around the rotation center pin in a plane parallel to a plane formed by the X-axis direction and the Y-axis direction.

Abstract: The dissimilar material joint structure 1 includes a plate member 20, a weld nut 10 on a front surface of the plate member, and a washer 30 on a back surface of the plate member. The weld nut and the plate member are made of dissimilar materials different from each other. The weld nut includes a projection 12 on a bearing surface thereof. The plate member has a bolt through-hole 23 located on a center axis of the weld nut, for passing therethrough a bolt 40 corresponding to the weld nut and a projection through-hole 24 on the periphery of the bolt through-hole. The projection through-hole is penetrable by the projection. The weld nut is not directly welded to the plate member but joined to the plate member by being welded to the washer via the projection penetrating the projection through-hole.

Abstract: An optimization system has a plurality of nodes, each including: a calculation processing unit that calculates an optimum value of a determination variable representing a parameter that controls the nodes by using the ADMM; and a function value calculation unit that receives an input of a value of the determination variable and calculates the value of the objective function based on a calculation model constructed by a learning processing. An arbitrary value of the determination variable is input to the function value calculation unit, and the calculation processing unit substitutes the value of the objective function calculated by the function value calculation unit and the arbitrary value of the determination variable into a second optimization problem by dual transformation of the first optimization problem, thereby repeatedly executing a processing of calculating a value of the dual variable until the value of the dual variable satisfies a predetermined condition.

Abstract: A nut transporting device includes: an outer cylinder, multiple attracting members that are arrayed in a spiral shape about a center axis extending in an axial direction of the outer cylinder, on an inner surface side of the outer cylinder and that form a magnetic field on an outer surface side of the outer cylinder to attract a weld nut to an outer surface of the outer cylinder; a rotary drive unit configured to rotatably move the attracting members about the center axis; and a restriction guide that restricts rotational movement of the weld nut to move the weld nut axially along the outer surface of the outer cylinder.

Abstract: A beam adjusting unit of a laser processing apparatus that adjusts a beam diameter of a laser beam includes a first lens unit and a second lens unit that can move along an optical path of the laser beam and a first movement mechanism and a second movement mechanism that move the first lens unit and the second lens unit, respectively, along the optical path. A control unit includes a storing section that stores the beam diameter of the laser beam and positions of the first lens unit and the second lens unit corresponding to the beam diameter in advance, and causes the first movement mechanism and the second movement mechanism to be actuated to move the first lens unit and the second lens unit to positions corresponding to a predetermined beam diameter.

Abstract: Parts merge smoothly without any stopper at a branching region. A determining and sorting unit determines, between an introduction passage and a branching region, whether weld nuts at rest are facing up or down. The weld nuts determined as facing up are fed to a first branch passage, whereas the weld nuts determined as facing down are fed to a second branch passage.

Abstract: Parts merge smoothly without any stopper at a branching region. A determining and sorting unit determines, between an introduction passage and a branching region, whether weld nuts at rest are facing up or down. The weld nuts determined as facing up are fed to a first branch passage, whereas the weld nuts determined as facing down are fed to a second branch passage.

Abstract: A laser beam irradiating unit of a laser processing apparatus includes a laser oscillator, a mirror configured to reflect a laser beam emitted from the laser oscillator and propagate the laser beam to a processing point, a power measuring unit configured to measure power of leakage light of the laser beam transmitted without being reflected by the mirror, and a condensing lens configured to condense the laser beam propagated by the mirror and irradiate a workpiece with the condensed laser beam. The control unit measures the power of the leakage light of the laser beam by the power measuring unit while irradiating the workpiece with the laser beam.

Abstract: Parts merge smoothly without any stopper at a branching region. A determining and sorting unit determines, between an introduction passage and a branching region, whether weld nuts at rest are facing up or down. The weld nuts determined as facing up are fed to a first branch passage, whereas the weld nuts determined as facing down are fed to a second branch passage.

Abstract: A laser oscillator support table includes a base, a fixed plate supported over the base with intermediary of a Z-axis direction movement unit, and a Y-axis direction moving plate mounted on the fixed plate, movable orthogonal to an X-axis direction. An optical path direction of the beam emitted from a laser oscillator supported by the laser oscillator support table is defined as the X-axis direction. The laser oscillator support table further includes a rotating plate that is mounted on the Y-axis direction moving plate rotatably around a rotation center pin fixed to the Y-axis direction moving plate and supports the laser oscillator, a Y-axis direction movement unit that moves the Y-axis direction moving plate in the Y-axis direction, and a rotational movement unit that rotates the rotating plate around the rotation center pin in a plane parallel to a plane formed by the X-axis direction and the Y-axis direction.

Abstract: An optimization system has a plurality of nodes, each including: a calculation processing unit that calculates an optimum value of a determination variable representing a parameter that controls the nodes by using the ADMM; and a function value calculation unit that receives an input of a value of the determination variable and calculates the value of the objective function based on a calculation model constructed by a learning processing. An arbitrary value of the determination variable is input to the function value calculation unit, and the calculation processing unit substitutes the value of the objective function calculated by the function value calculation unit and the arbitrary value of the determination variable into a second optimization problem by dual transformation of the first optimization problem, thereby repeatedly executing a processing of calculating a value of the dual variable until the value of the dual variable satisfies a predetermined condition.

Abstract: Disclosed is a nonvolatile memory control method in which a unit of erase and a unit of read are different from each other. The control method includes: allocating a physical address of the nonvolatile memory to a logical address in a predetermined unit; and controlling a size of the unit of erase in which a physical address allocated to a logical address is included according to a write access state with respect to the logical address in the predetermined unit.

Abstract: A large-scale computer system including a plurality of nodes is controlled to improve its system performance without aggregating data in a single site. There is provided a computer system including a plurality of computers, wherein a processor: detects a trigger to calculate a control value for controlling a process to be performed by the computer; identifies a target computer for which an evaluation value is obtained; calculates the evaluation value of its own computer; obtains the evaluation value from the target computer; calculates a first point using at least one of the evaluation value of its own computer and the evaluation value of the target computer; obtains a second point from the target computer; calculates the control value using the first point and the second point; and controls the process performed by the computer based on the control value.

Abstract: A memory module includes: a first memory device that is volatile or non-volatile; a second memory device that is non-volatile; a third memory device that is non-volatile; and a controller that controls the first to third memory devices, wherein a capacity of the second memory device is larger than a capacity of the first memory device, and a capacity of the third memory device is larger than the capacity of the second memory device, a second upper limit value of the number of rewritings of the second memory device is larger than a third upper limit value of the number of rewritings of the third memory device, and a first upper limit value of the number of rewritings of the first memory device is larger than the second upper limit value of the number of rewritings of the second memory device, and the controller accesses the second memory device with reference to a first address translation table related to the second memory device stored in the first memory device, and accesses the third memory device with ref