摘要:
A method for configuring the physical model of a heat recovery steam generator that can estimate the state quantity of generated steam from the state quantity of the exhaust gas to be introduced, and capable of establishing the physical model of a combined cycle power generation facility thereby. The optimum values for the flow rates Flp and Fhp, pressures and temperatures Tlp and Thp of the low pressure main steam and high pressure main steam are computed in such a way as to ensure that an objective function E stored in advance will come close to zero.
摘要:
The present invention relates to an agent for the prophylaxis and treatment of diabetic complications comprising, as an active ingredient, 4-[α-hydroxy-2-methyl-5-(1-imidazolyl)benzyl]-3,5-dimethylbenzoic acid, an optically active compound thereof or a pharmaceutically acceptable salt thereof. The present invention further relates to a method for the prophylaxis and treatment of diabetic complications comprising administering an effective amount of this compound. The medicament of the present invention is useful for the prophylaxis and treatment of diabetic complications, namely, diabetic neuropathy, nephropathy, ophthalmopathy, arteriosclerosis and the like. The action of the drug is long-lasting for very small doses and a single administration a day is sufficient.
摘要:
5-2-chloro-4-trifluoromethylphenoxy)-2-nitro-.alpha.-substituted-acetophenones and oxime derivatives thereof represented by the formula ##STR1## wherein R.sup.1 and Y are as defined in the disclosure, process for the preparation thereof, herbicidal composition and method for the destruction of undesirable weeds. The herbicides comprising the above compounds are capable of selectively controlling undesirable weeds among desirable crop plants.
摘要:
An oxyfuel combustion boiler plant comprising: a boiler having an air separation unit for manufacturing oxygen by separating nitrogen from air, a burner for burning the oxygen supplied from the air separation unit and pulverized coal, and a primary system pipe for supplying the pulverized coal to the burner, exhaust gas recirculation system pipe for supplying combustion exhaust gas discharged from the boiler to the primary system pipe, a carbon dioxide capture unit for capturing carbon dioxide in the exhaust gas discharged from the boiler, the oxyfuel combustion boiler plant is further comprising: an oxygen buffer tank disposed on a downstream side of the air separation unit; an oxygen supply pipe for supplying oxygen to the primary system pipe of the burner from the oxygen buffer tank; and a nitrogen supply pipe for supplying a part of nitrogen generated from the air separation unit or an air supply pipe for supplying air from outside which is connected to the oxygen supply pipe on a downstream side of the oxygen buffer tank and on an upstream side of a junction of the primary system pipe.
摘要:
A coal-fired power plant having a control unit including a first flow rate control valve for regulating a water flow rate of a water feed bypass system, a second flow rate control valve installed in an extraction pipe for extracting steam from a steam turbine, a first temperature sensor on a downstream side of a heat recovery device, and a second temperature sensor on a downstream side of a heat exchanger and the control unit regulates opening of the first and second flow rate control valves on the basis of an exhaust gas temperature detected by the first temperature sensor and a feed water temperature detected by the second temperature sensor.Accordingly, even when a recovery heat quantity of the heat recovery device installed on a gas duct is changed due to deterioration with age of a boiler, a reduction in plant reliability and plant efficiency can be suppressed.
摘要:
A method for retrofitting a pulverized coal boiler in an air combustion boiler system is disclosed, which has a plurality of burners over a plurality of stages along the vertical direction on a wall surface of a furnace of the pulverized coal boiler and an after-air port for introducing air for two-stage combustion located above the burners to retrofit into a two-stage combustion pulverized coal boiler in an oxyfuel combustion boiler system.
摘要:
A performance monitoring system for monitoring the performance of a single shaft combined cycle plant having a steam turbine, a gas turbine and a generator connected by a single shaft, comprising: a gas turbine calculation means 2 for estimating a gas turbine output and a gas turbine exhaust gas temperature from a process value related to the gas turbine; a steam turbine calculation means 3 for estimating a steam turbine output from a process value related to the steam turbine; and a performance monitoring calculation means 6 which, in the case where the difference between the total of the estimate values for the estimated steam turbine output and the estimated gas turbine output and the actual measurement of the generator output exceeds a prescribed value, if the difference between the estimate value of the gas turbine exhaust gas temperature and the actual measurement of the gas turbine exhaust gas temperature exceeds another prescribed value, determines gas turbine abnormality, while if the difference between the estimate value of the gas turbine exhaust gas temperature and the actual measurement of the gas turbine exhaust gas temperature does not exceed the another prescribed value, determines steam turbine abnormality.
摘要:
The present invention aims at providing compounds having therapeutic effects due to a DPP-IV inhibitory action, and satisfactory as pharmaceutical products. The present inventors have found that derivatives having a substituent introduced into the γ-position of proline represented by the formula (I) wherein each symbol is as defined in the specification, have a potent DPP-IV inhibitory activity, and completed the present invention by increasing the stability.
摘要:
The present invention aims at providing compounds having therapeutic effects due to a DPP-IV inhibitory action, and satisfactory as pharmaceutical products. The present inventors have found that derivatives having a substituent introduced into the γ-position of proline represented by the formula (I) wherein each symbol is as defined in the specification, have a potent DPP-IV inhibitory activity, and completed the present invention by increasing the stability.
摘要:
The MAG expression promoter of the present invention contains a compound of the formula (I) wherein each symbol is as defined in the specification, an optically active form thereof or a pharmaceutically acceptable salt thereof. As a compound of the formula (1), 4-[α-hydroxy-5-(1-imidazolyl)-2-methylbenzyl]-3,5-dimethylbenzoic acid is exemplified. The MAG expression promoter of the present invention is useful as an agent for the prophylaxis and/or treatment of a disease of mammals inclusive of humans, which mainly presents hypomyelination, further, dysmyelination or demyelination.