Abstract: A semiconductor storage device of an embodiment includes a memory block, a resistance measurement circuit, and a control circuit. The memory block includes first to third control signal lines connected to gates of a first select gate transistor, a plurality of memory cell transistors, and a second select gate transistor. The resistance measurement circuit measures resistance of at least one control signal line among the first to third control signal lines. The control circuit performs erase, program, and read of data at the plurality of memory cell transistors included in the memory block. The control circuit determines, based on a measurement result of the resistance measurement by the resistance measurement circuit, whether to set a fail status to a result of erase verify that verifies the erase.

Abstract: A rail breakage detection device includes a first core part provided to a first cable connecting an electrical neutral point of an impedance bond that electrically connects a first rail and a second rail to the first rail, a second core part provided to a second cable connecting the electrical neutral point of the impedance bond to the second rail, a first coil wound around the first core part to generate a first electromotive force in accordance with a current variation occurring in the first cable, a second coil connected electrically to the first coil and wound around the second core part to generate a second electromotive force in accordance with a current variation occurring in the second cable, and a CPU to determine that the first or second rail is broken based on an electromotive force that is a sum of the first and second electromotive forces.

Abstract: Provided is a project management apparatus including: a first acquisition unit configured to acquire an on-site image obtained by photographing a construction site in which an installation object is to be constructed; a second acquisition unit configured to acquire engineering model data on each of a plurality of components forming the installation object; a display control unit configured to display, on a display apparatus, a composite image obtained by superimposing the engineering model data on the on-site image; and a reception unit configured to receive an operation of a user, wherein the display control unit is configured to display, based on the operation performed on the composite image by the user, a display screen for causing the user to input information relating to progress of a work unit containing a work of a component corresponding to the engineering model data selected by the user, on the display apparatus.

Abstract: A semiconductor storage device of an embodiment includes a memory block, a resistance measurement circuit, and a control circuit. The memory block includes first to third control signal lines connected to gates of a first select gate transistor, a plurality of memory cell transistors, and a second select gate transistor. The resistance measurement circuit measures resistance of at least one control signal line among the first to third control signal lines. The control circuit performs erase, program, and read of data at the plurality of memory cell transistors included in the memory block. The control circuit determines, based on a measurement result of the resistance measurement by the resistance measurement circuit, whether to set a fail status to a result of erase verify that verifies the erase.

Abstract: There is provided a light source control apparatus including an image change determination unit that determines presence or absence of at least one of a change of an image signal and the image signal, and a light source controller that reduces luminous output of a light source at a predetermined decreasing rate when the image change determination unit determines at least one of no change of the image signal and absence of the image signal.

Abstract: There is provided a light source control apparatus including an image change determination unit that determines presence or absence of at least one of a change of an image signal and the image signal, and a light source controller that reduces luminous output of a light source at a predetermined decreasing rate when the image change determination unit determines at least one of no change of the image signal and absence of the image signal.

Abstract: A projector apparatus includes: a case; a light source which is provided in the case and emits light by supply of power; an opening provided in the case; an image projection unit that generates image projection light from light of the light source and emits the image projection light through the opening in order to project an image onto a screen; a shutter which is moved to a block position at which the opening provided in the case is blocked or to an open position at which the opening is opened; and a light leakage section which provides notification that the power is being supplied to the light source by allowing some light beams of the light source or some light beams of the image projection unit to leak to the outside of the case in a state where the shutter is located at the block position.

Abstract: A projector apparatus includes: a case; a light source which is provided in the case and emits light by supply of power; an opening provided in the case; an image projection unit that generates image projection light from light of the light source and emits the image projection light through the opening in order to project an image onto a screen; a shutter which is moved to a block position at which the opening provided in the case is blocked or to an open position at which the opening is opened; and a light leakage section which provides notification that the power is being supplied to the light source by allowing some light beams of the light source or some light beams of the image projection unit to leak to the outside of the case in a state where the shutter is located at the block position.