Abstract: [Problem] To provide a high-shelf hydroponic cultivation system equipped with a solar panel having a large power generation amount while ensuring light quantity for a plant. [Solution] Since the high-shelf hydroponic cultivation system 80 equipped with a solar panel has a light transmitting region A provided at the solar panel 50, more light can be taken into the frame unit and can be utilized for cultivating the plants P1 and P2. Since the double-sided light receiving solar cell 52 is employed for the solar panel 50 and light reflectivity is given to the floating bench 34, the weed-proof sheet 56, the vertical frame 20b and the like, light which does not shine on the plants P1 and P2 is reflected to a light receiving region on a rear face side of the double-sided light receiving solar cell 52 and can be effectively utilized for power generation. Thus, a large power generation amount can be obtained while ensuring light quantity for the plants.

Abstract: To provide a high-shelf hydroponic cultivation system equipped with a solar panel whereby an area under the solar panel can be effectively utilized and plants can be stably grown. In the high-shelf hydroponic cultivation system equipped with a solar panel according to the present invention, a cultivation tank is placed under the solar panel and plants P1 and P2 are hydroponically cultivated. Thus, an area under the solar panel 10 can be effectively utilized. Moreover, since the plants P1 and P2 are hydroponically cultivated in the high-shelf hydroponic cultivation system equipped with the solar panel, the plants P1 and P2 with high quality can be efficiently and stably cultivated. Furthermore, since the cultivation tank is placed at a specific height from the ground surface, a burden on an operator can be reduced, and the productivity of the plants P1 and P2 can be increased.

Abstract: In the soil cultivation system (80) equipped with a solar panel, a light transmitting region (A) is provided in a solar panel (50), and thus a larger amount of light is captured into a frame unit and can thereby be utilized for the cultivation of agricultural plants (P1, P2). Double-sided light receiving solar cells (52) are adopted in the solar panel (50), and thus light reflected off an agricultural ground surface, the agricultural plants (P1, P2), a sheet-shaped member and the like can be effectively utilized for power generation. In this way, it is possible to compensate for a reduction in the area of the solar cells caused by the formation of the transmitting regions A, and it is possible to obtain a large amount of power generated while acquiring the amount of light on the agricultural plants.

Abstract: In the soil cultivation system equipped with a solar panel, the space between ridges of a plurality of frame units supporting the solar panels is coupled with a roof member, furthermore, the perimeter surface thereof is integrally covered with a cover unit. In this way, a cultivation house in which the frame units are used as support columns is established. Then, in the solar panels, light transmitting regions are provided, a transmissive member is used as the roof member and thus agricultural plants are cultivated by light passing through the light transmitting regions and the roof member. Furthermore, the cultivation of the agricultural plants is performed in cultivation tanks in which a soil is put, and an appropriate cultivation nutrient solution is supplied through a supply means. In this way, the cultivation environment of the agricultural plants is managed, and thus the agricultural plants can be efficiently cultivated while the burden of an operator is reduced.

Abstract: In the soil cultivation system (80) equipped with a solar panel, a light transmitting region (A) is provided in a solar panel (50), and thus a larger amount of light is captured into a frame unit and can thereby be utilized for the cultivation of agricultural plants (P1, P2). Double-sided light receiving solar cells (52) are adopted in the solar panel (50), and thus light reflected off an agricultural ground surface, the agricultural plants (P1, P2), a sheet-shaped member and the like can be effectively utilized for power generation. In this way, it is possible to compensate for a reduction in the area of the solar cells caused by the formation of the transmitting regions A, and it is possible to obtain a large amount of power generated while acquiring the amount of light on the agricultural plants.

Abstract: [Problem] To provide a high-shelf hydroponic cultivation system equipped with a solar panel having a large power generation amount while ensuring light quantity for a plant. [Solution] Since the high-shelf hydroponic cultivation system 80 equipped with a solar panel has a light transmitting region A provided at the solar panel 50, more light can be taken into the frame unit and can be utilized for cultivating the plants P1 and P2. Since the double-sided light receiving solar cell 52 is employed for the solar panel 50 and light reflectivity is given to the floating bench 34, the weed-proof sheet 56, the vertical frame 20b and the like, light which does not shine on the plants P1 and P2 is reflected to a light receiving region on a rear face side of the double-sided light receiving solar cell 52 and can be effectively utilized for power generation. Thus, a large power generation amount can be obtained while ensuring light quantity for the plants.

Abstract: To provide a high-shelf hydroponic cultivation system equipped with a solar panel whereby an area under the solar panel can be effectively utilized and plants can be stably grown. In the high-shelf hydroponic cultivation system equipped with a solar panel according to the present invention, a cultivation tank is placed under the solar panel and plants P1 and P2 are hydroponically cultivated. Thus, an area under the solar panel 10 can be effectively utilized. Moreover, since the plants P1 and P2 are hydroponically cultivated in the high-shelf hydroponic cultivation system equipped with the solar panel, the plants P1 and P2 with high quality can be efficiently and stably cultivated. Furthermore, since the cultivation tank is placed at a specific height from the ground surface, a burden on an operator can be reduced, and the productivity of the plants P1 and P2 can be increased.

Abstract: A machine tool includes a spindle having a cutting tool for cutting a workpiece. For fault detection, a control unit of the machine tool detects a value representing a torque applied on the spindle while the spindle is stopped in a state the cutting tool is engaged with the workpiece. The control unit further compares the detected value (representing a torque) with a predetermined threshold thereby to determine that a fault has occurs. Since the detection of the value representing a torque is performed while the spindle is stopped, the detection is free from the effects of acceleration or deceleration of the spindle.

Abstract: Axial loads encountered during thread cutting are reduced by controlling interactions between rotation speed, axial feeding speed, feeding (threading) pitch, and feeding position. A counterload is generated by changing a feeding pitch to a corrected feeding pitch, which changes the rotation speed, while keeping the feeding speed constant; by changing the feeding speed, while compensating the rotation speed (which is derived from the feeding speed) to remain constant; by changing the rotation speed, while compensating the rotation speed deviation feedback (to allow the deviation correction to follow the rotation speed change), while keeping the feeding speed constant; by generating a function according to empirical results that controls the feeding pitch, and therefore the rotation speed, while keeping the feeding speed constant; and by combinations of these methods.

Abstract: A traveling wire electric discharge machining apparatus machines a workpiece by applying periodic voltage pulses to a wire electrode while moving the wire electrode relative to the workpiece. A location on the workpiece is determined, according to a predetermined parameter. The location is before a change in machining direction of the workpiece. When the wire electrode is positioned at the determined location, a characteristic of the periodic voltage pulse is changed.