摘要:
A catalyst for lowering NOx concentration in an exhaust gas is disposed in an exhaust gas passage of an engine. The catalyst composed of a catalyst layer formed on a substrate. A NOx absorber that absorbs NOx when an oxygen concentration in the exhaust gas is high and releases NOx when the oxygen concentration drops, and a precious metal for reducing NOx are supported on a support material as catalyst components, and the NOx absorber includes Ba, K, Sr, and Mg. By lowering the oxygen concentration in the exhaust gas and raising a temperature of the NOx absorber when sulfur component is absorbed excessively in the NOx absorber, it is possible to regenerate the catalyst from the S poisoning.
摘要:
The concentrations of predetermined components of a chemical solution 5 present in a cleaning bath 1 are measured by a measurement unit 11. From the results are calculated the concentrations of various chemical species. From the concentrations calculated and an experimentally obtained rate equation is calculated the treating ability of the chemical solution 5 before supplementation of said components. Then, the treating abilities of chemical solution when the components and ultrapure water are supplemented, are calculated for various cases of amounts supplemented. From these cases is determined a case of amounts supplemented in which the treating ability of chemical solution is maintained at a required level and the amounts supplemented are minimized. Next, the components and ultrapure water are supplemented in respective determined amounts via feeding pumps 21, 23 and 25.
摘要:
The present invention relates to a 3-hydroxymethylcycloalkanol of the following formula (1), and a process for production of a 3-hydroxymethylcycloalkanol of the formula (1) by reduction of 3-formylcycloalkanone or 3-formylcycloalkenone. In accordance with the present invention, 3-hydroxymethylcycloalkanol, which is useful as the starting material for the production of polymers, can be produced with high conversion and high selectivity.
摘要:
A debugging information display device is provided which concurrently displays a source list and debugging information when the source list is displayed through a debugger. A vectorizing line extractor, a vectorizing degree analyzer and a breakpoint-logical vector length information fetching unit are provided on a compiler side, and debugging information is affixed to an execution program output from the compiler. A vectorizing degree fetching unit is provided on the debugger side, and displays, together with source lines, vectorizing lines to be vectorized and the corresponding vectorizing degree information fetched from the debugging information. Also, a logical vector length analyzer and a real vector length fetching unit are provided to display logical and real vector lengths simultaneously. Further, a breakpoint setting unit and a breakpoint information analyzer are provided so that set breakpoints and specifiable breakpoints can be displayed when the source is displayed.
摘要:
Provided is a lead-free solder for connecting LSI and parts on organic substrates, which can provide soldering at a maximum temperature of 220.degree.-230.degree. C. and which has a sufficient reliability in mechanical strength even at a high temperature of 150.degree. C. Also provided are electronic products prepared using this lead-free solder. The lead-free solder has a solder composition including 3-5% Zn and 10-23% Bi, the balance being Sn. Preferably, the solder composition is a composition (Sn, Zn, Bi) surrounded by lines connecting A and B, B and C and C and A, where A is (85, 5, 10 ), B is (72, 5, 23) and C is (76, 3, 21), of a ternary diagram having pure Sn, pure Zn and pure Bi at the vertices of an equilateral triangle. Through use of this solder, it is possible to solder parts, etc. on conventionally employed organic substrates at reflow temperatures equivalent to those for conventional Pb--Sn eutectic solders. The solder does not damage the environment, can be stably supplied and is low in cost.
摘要:
A nitrile compound or an amide compound is hydrolyzed in the presence of an inorganic acid or other acidic catalyst or an alkali metal hydroxide or other basic catalyst, and the by-produced ammonium salt of the acidic catalyst or the produced salt of a carboxylic acid and a base is electrodialysed to form an acid and ammonia or aqueous ammonia, or to form a base and ammonia. The obtained acid or base may be recycled as a catalyst for the hydrolysis of the nitrile compound or amide compound, and the obtained ammonia is reutilized as a nitrogen source for the nitrile compound or amide compound. Such amide compound may be produced by hydration of a nitrite compound in the presence of a manganese oxide.
摘要:
There is provided a game system in which a virtual object such as a car is moved in virtual surroundings on a screen of a display. The system comprises an input device for providing from a player operating information concerning an expected motion of the object and an element for simulating the motion of the object in response to the provided information and in consideration of interaction forces between the object and the surroundings. The interaction forces are operated at least two positions of the object. The simulated results of the object Is displayed on the screen of the display.
摘要:
A cyclodextrin adsorbing material composed of a water-insoluble resin substrate to which a ligand having such a size as to be included by cyclodextrin is chemically bonded via a spacer radical; a method of separating and purifying cyclodextrin from an aqueous solution containing it, which comprises bringing said aqueous solution into contact with the above adsorbing material to adsorb cyclodextrin on the adsorbing material, and subjecting the adsorbing material to a desorption treatment to recover cyclodextrin; and a method of increasing the amount of cyclodextrin yielded, which comprises carrying out a cyclodextrin-forming reaction by an enzymatic method in the presence of the above adsorbent material.
摘要:
Novel antibiotic .beta.-lactam compounds, i.e. 7-oxo-1-azabicyclo(3.2.0)hept-2-ene-2-carboxylic acid derivatives of the following formula ##STR1## wherein R.sub.1 represents a hydrogen atom, a methyl group or a hydroxyl group,R.sub.2 represents a lower alkyl group, a hydroxy lower alkyl group, a lower alkoxy-lower alkyl group, a lower alkanoyloxy-lower alkyl group, a cyclohexyl group, a phenyl group or a 5- or 6-membered aromatic heterocyclic group containing 1 or 2 nitrogen atoms, andR.sub.3 represents a hydrogen atom, a lower alkyl group, or a substituted or unsubstituted aralkyl group containing 7 to 20 carbon atoms,and the salts thereof; processes for production thereof; use thereof as antimicrobial agents; and novel intermediates for production of the compounds of formula (I).
摘要:
Provided is a game system having a communication function which takes into account the operability of a player. A game device is provided with: a transmission image obtaining portion which, when the hand tiles displayed in a game-state screen of a mah-jongg game are specified as a capture image, obtains image information of the capture image; and a deliver information transmitting portion which transmits the image information obtained to the server as delivery information. The server is provided with: a player information storage portion which holds delivery destinations of the delivery information of the player; a delivery destination specifying portion which specifies the delivery destinations corresponding to the player of the game device from which the delivery information was transmitted; and a delivery portion which transmits the delivery information to the delivery destinations specified via an open network.