摘要:
A semiconductor laser device is provided which is designed to prevent end surface optical damage, thereby permitting an increase in the output of the semiconductor laser. To achieve this, an active layer at the light emitting end surface portion of the semiconductor laser device is recessed inwardly by a distance between 50 nm and 300 nm (depending on the amount of etching) from the end surfaces of the crystal layers lying on both sides of the active layer. The recess serves to improve the heat dissipation of the active layer portion. This results in improving the amount of light output of the semiconductor laser which is possible without causing optical damage. A method for making the device is also provided. This method permits achieving the above-noted advantages simply by adding an etching step to the conventional semiconductor laser fabrication process, without requiring special equipment or technique.
摘要:
A vertical hydro-hoist for conveying a slurry under pressure by using a liquid obtained from a chemical process as a driving liquid and method for operating the same, the hydro-hoist includes at least one feed chamber and a detector for detecting a relationship of specific gravities between a driving liquid, a slurry and a float desporent in the at least one feed chamber. A holding member is provided for holding the float and a device, provided for supplying or discharging a specific gravity adjusting liquid into and out of the float. After temporarily holding the float in the feed chamber, the adjusting liquid is supplied into or discharged out of the float in accordance with the relationship detected by the detector.
摘要:
A process for producing tin oxide fibers, which comprises forming a melt comprising a solute composed essentially of tin oxide and a solvent selected from the group consisting of copper, a copper alloy, tin or a tin alloy, evaporating the solute from the melt, and leading the evaporated solute to a low temperature zone, whereby tin oxide fibers are permitted to precipitate and grow in the low temperature zone.
摘要:
Slurry consisting of water and solid material is fed to fill a plurality of supply chambers arranged in parallel to each other, by the action of slurry pump. The filled slurry is forced to a transferring pipe by the liquid pressure of a high pressure driving liquid pump. A float is positioned on an interface between the slurry and driving liquid within the supply chamber. When a sensor for detecting the position of the float is inoperative due to an external turbulence or the like, a command signal is applied to selected valves in response to a period of time set in a timer.
摘要:
In transporting solid material of a wide particle size distribution ranging from small to large size particles, a liquid is added to the solid material as a transporting medium to convert the solid material into a slurry to be hydraulically transported. The slurry that has performed the function of transporting the solid material is passed through a water removing device and a solid-liquid separating device to produce a suspension which is stored in a heavy medium tank and returned, after adjusting the concentration of the solid material therein, to the starting point of transportation so that the suspension can be recycled for use as a heavy transporting medium.
摘要:
A PM-ECU configured to control a drive torque of a vehicle is configured to be stopped in response to a driver's operation of a start switch and then activated in response to a driver's re-operation of the start switch. The PM-ECU is configured to be activated and place a restriction on the drive torque of the vehicle, in response to a re-operation of the start switch after the PM-ECU is stopped in response to an operation of the start switch. The PM-ECU is configured to remove the restriction on the drive torque in response to a reduction of an operation amount by which an accelerator pedal is operated.
摘要:
When a vehicle collision is detected, a electric connection between a power supply and an input stage of an inverter is switched to the disconnected condition. Then, when a rotation speed of an alternating current motor is higher than an allowable rotation speed or a terminal voltage of a storage unit provided at the input stage is higher than an allowable terminal voltage, an exciting current command value is set at a value other than zero and a torque current command value is set at zero, and when the rotation speed is equal to or lower than the allowable rotation speed and the terminal voltage is equal to or lower than the allowable terminal voltage, both command values are set at zero. An exciting current component and a torque current component of an alternating current supplied from the inverter to the motor are controlled according to the set command values.
摘要:
In a system, a data receiving device comprises a timing signal generation unit that generates a timing signal used for receiving the divided transmission data in each of the transmission paths, a data receiving unit that receives the divided transmission data transmitted by the data transmitting device for each of the transmission paths by using the timing signal generated by the timing signal generation unit, and an error detection unit that extracts the error detection information from the divided transmission data received for each of the transmission paths by the data receiving unit and detects an error of transmission data included in the divided transmission data by using the extracted error detection information.
摘要:
A method for manufacturing an electronic device includes forming a resin film over a wafer, the wafer including a plurality of elements formed therein, each of the elements including a functional unit, patterning the resin film to form a plurality of frame members, each of the frame members being provided on each of the elements and surrounding the functional unit, dividing the wafer into the elements, and providing an encapsulation.