摘要:
The present invention provides a novel β-galactoside-α2,6-sialyltransferase having high productivity and/or high activity, and a nucleic acid encoding the sialyltransferase. The present invention also provides a microorganism producing the sialyltransferase. The present invention further provides a vector carrying a nucleic acid encoding the sialyltransferase, and a host cell transformed with the vector, as well as a method for producing a recombinant β-galactoside-α2,6-sialyltransferase.
摘要:
In semiconductor integrated circuit devices for vehicle use or the like, in general, an aluminum pad on a semiconductor chip and an external device are coupled to each other by wire bonding or the like using a gold wire and the like for the convenience of mounting. Such a semiconductor integrated circuit device, however, causes a connection failure due to the interaction between aluminum and gold in use for a long time at a relatively high temperature (about 150 degrees C.). The invention of the present application provides a semiconductor integrated circuit device (semiconductor device or electron circuit device) which includes a semiconductor chip as a part of the device, an electrolytic gold plated surface film (gold-based metal plated film) provided over an aluminum-based bonding pad on a semiconductor chip via a barrier metal film, and a gold bonding wire (gold-based bonding wire) for interconnection between the plated surface film and an external lead provided over a wiring board or the like (wiring substrate).
摘要:
A valveless micropump for transforming a pressure variation of fluid in a volume variation chamber (8) into an oscillatory flow of fluid (10) by means of a piezoelectric element (7), making the fluid (10) to flow smoothly in channels (5, 6). A channel (2) is formed as an asymmetric diffuser-shaped channel (12) having a narrow channel (5) on the diffuser inlet (3) side and a wide channel (6) on the diffuser outlet (4) side, and the volume variation chamber (8) provided with the piezoelectric element (7) is communicated with the narrow channel (5). Vibration generated by applying a voltage to the piezoelectric element (7) causes a pressure variation of the fluid in the volume variation chamber (8) to generate a nozzle flow. The fluid (10) is made to flow smoothly from the wide channel (6) to the narrow channel (5) by the nozzle flow.
摘要:
In semiconductor integrated circuit devices for vehicle use or the like, in general, an aluminum pad on a semiconductor chip and an external device are coupled to each other by wire bonding or the like using a gold wire and the like for the convenience of mounting. Such a semiconductor integrated circuit device, however, causes a connection failure due to the interaction between aluminum and gold in use for a long time at a relatively high temperature (about 150 degrees C.). The invention of the present application provides a semiconductor integrated circuit device (semiconductor device or electron circuit device) which includes a semiconductor chip as a part of the device, an electrolytic gold plated surface film (gold-based metal plated film) provided over an aluminum-based bonding pad on a semiconductor chip via a barrier metal film, and a gold bonding wire (gold-based bonding wire) for interconnection between the plated surface film and an external lead provided over a wiring board or the like (wiring substrate).
摘要:
There is provided a DC-DC converter control circuit, wherein a reference feedback signal related to a supply voltage to a load is compared to a reference oscillation signal to generate a result of comparison. The result of comparison is used as a switching control signal to control the supply voltage to the load. The result of comparison is frequency divided to generate a frequency divided signal; and the switching control signal is generated in response to the frequency divided signal.
摘要:
A parking brake apparatus for activating a brake unit includes a base member; an operating lever supported on the base member for generating an operating force when the operating lever is operated so that the operating force is transmitted to the brake unit through a brake cable; an inputting member to be rotated with the operating lever; an intermediating member disposed separately from the inputting member for interconnecting the inputting member and the brake cable; and a connection member for connecting the intermediating member and the inputting member. Accordingly, the intermediating member transmits the operating force to the brake cable from the connection member.
摘要:
The present invention provides an inexpensive and simple method which allows efficient glycosylation with glycosyltransferases derived from microorganisms of the Vibrionaceae family when compared to conventional enzymatic reaction systems.According to the method of the present invention, glycosyltransferases derived from microorganisms of the Vibrionaceae, such as β-galactoside-α2,6-sialyltransferase derived from Photobacterium damselae, β-galactoside-α2,3-sialyltransferase derived from Photobacterium phosphoreum and β-galactoside-α2,3-sialyltransferase derived from Vibrio sp., enhance their enzymatic activity when an appropriate amount of NaCl is added to their enzyme reaction systems.
摘要:
The invention relates to a strain belonging to Exserohilum monoceras which shows the esterase zymogram pattern shown in FIG. 1, a weed-controlling agent containing the same, and a weed-controlling method using the same. The invention provides a novel strain belonging to Exserohilum monoceras excellent in herbicidal effects as well as in spore productivity.
摘要:
The present invention relates to a disease-controlling agent for useful gramineous plants such as rices, corns, wheats, barleys, ryes and oats, comprising as an active ingredient a microorganism belonging to the genus Exserohilum and having an ability to control diseases of useful gramineous plants, as well as a disease control method for gramineous plants comprising applying said agent to useful gramineous plants including rices, corns, wheats, barleys, ryes and oats.