摘要:
Systems and methods according to embodiments provide elasticity for complex event processing (CEP) systems. Embodiments may comprise at least the following three components: (1) incremental query optimization, (2) operator placement, and (3) cost explanation. Incremental query optimization allows avoiding simultaneous computation of identical results by performing operator-level query reuse and subsumption. Using automatic operator placement, a centralized CEP engine can be transformed into a distributed one by dynamically distributing and adjusting the execution according to unpredictable changes in data and query load. Cost explanation functionality can provide end users with near real-time insight into the monetary cost of the whole system, down to operator level granularity. Combination of these components allows a CEP system to be scaled up and down.
摘要:
A method for controlling exhaust gas of an internal combustion engine includes controlling operation of the engine to fluctuate a lambda value of a raw exhaust gas at the lambda probe, exhibiting two-step action and disposed upstream of a three-way catalytic converter located in an exhaust tract, about a predetermined mean value. In a trimming controller, a concentration of an exhaust gas component downstream of the converter is measured with an amperometric-measuring sensor made from a solid-state electrolyte. In the sensor's first measuring cell, an oxygen concentration is measured through a first Nernst voltage between a first electrode and a reference electrode exposed to ambient air, and is controlled by a first oxygen-ion pumping current between the first electrode and an outer electrode of the sensor. In the second measuring cell of the sensor, the oxygen concentration is measured through a second Nernst voltage between the second and reference electrodes. A voltage is tapped between the outer and reference electrodes in conjunction with a series connection of the first and second measuring cells, and the voltage is used as a signal, dependent on the oxygen concentration and indicating two-step action, for trimming control. The predetermined mean values are corrected in dependence on the measured concentration of the exhaust gas component downstream of the converter. Preferably, the sensor is a NOx-measuring sensor, and, in its second measuring cell, the oxygen concentration in the second measuring cell is controlled through a second oxygen-ion pumping current.
摘要:
A cost monitoring system can monitor a cost of queries executing in a complex event processing system, running on top of a pay-as-you-go cloud infrastructure. Certain embodiments may employ a generic, cloud-platform independent cost model, multi-query optimization, cost calculation, and/or operator placement techniques, in order to monitor and explain query cost down to an operator level. Certain embodiments may monitor costs in near real-time, as they are created. Embodiments may function independent of an underlying complex event processing system and the underlying cloud platform. Embodiments can optimize a work plan of the cloud-based system so as to minimize cost for the end user, matching the cost model of the underlying cloud platform.
摘要:
Various embodiments of systems and methods for a fault tolerance based query execution are described herein. Queries are received from users, the queries including operators. A multi-query optimization is performed on the operators included in the queries to obtain a query plan. A fault tolerance degree is determined for the operators included in the query plan. Based on the fault tolerance degree of the operators, nodes are assigned to the operators included in the query plan. The assigned nodes execute the operators included in the query plan to execute the queries. In one aspect, the nodes simultaneously execute the operators included in the query plan.
摘要:
The invention relates to a hot melt adhesive, comprising at least one polysaccharide ester gained by a reaction of a polysaccharide with an imidazolide in melted imidazole. The invention relates, further, to a process for producing the hot melt adhesive, in which imidazole is melted, and an acid chloride and/or an acid anhydride and/or a lactone is reacted in and with the melted imidazole to form an imidazolide, whereby at least one polysaccharide is added to the melted imidazole, whereby the polysaccharide is reacted with the imidazolide to form a polysaccharide ester.
摘要:
The invention relates to a motor vehicle that is provided with a device for testing the systems, functions or components of the vehicle. According to the invention, the vehicle is jacked-up and is equipped with an actuator or a driver to operate the brakes of the vehicle. The vehicle propulsion can rotate freely against the load of at least one brake of the vehicle and the freely rotating wheel or wheels have no frictional connection to the tread contact area of the vehicle. The brakes and/or the propulsion load can be controlled by actuators having a controller or by the driver in accordance with specific signals of the operating condition of the drive train of the vehicle.
摘要:
The present invention relates to a method of treating infectious diseases, that involves: (a) providing an alpha-glycosidically linked starch polysaccharide derivative; and (b) inhibiting the growth of an infectious disease by administering a composition comprising the alpha-glycosidically linked starch polysaccharide derivative. The alpha-glycosidically linked starch polysaccharide derivative represented by the following general formula I, in which: the alpha-glycosidically linked starch polysaccharide derivative has a degree of quaternary ammonium group substitution of from 0.4 to 2.0; n is 2-4; R1 is selected from the group consisting of C1-4 alkyl, benzyl and benzyl substituted with a member selected from the group consisting of C1-3 alkyl, halogen, alcoxy, carbamoyl, alkoxycarbonyl, cyano, dialkylamino and hydrogen; R2 and R3 are each independently selected from the group consisting of C1-4 alkyl, benzyl and benzyl substituted with a member selected from the group consisting of C1-3 alkyl, halogen, alcoxy, carbamoyl, alkoxycarbonyl, cyano and dialkylamino; and X is an anion selected from the group consisting of halide, hydroxide, sulfate, hydrogen sulfate and carboxylate.
摘要翻译:本发明涉及一种治疗感染性疾病的方法,其涉及:(a)提供α-糖苷连接的淀粉多糖衍生物; 和(b)通过施用包含α-糖苷连接的淀粉多糖衍生物的组合物来抑制感染性疾病的生长。 由以下通式I表示的α-糖苷连接的淀粉多糖衍生物,其中:α-糖苷连接的淀粉多糖衍生物的季铵基取代度为0.4〜2.0; n为2-4; R 1选自C 1-4烷基,苄基和被选自C 1-3烷基的成员取代的苄基, 烷基,卤素,烷氧基,氨基甲酰基,烷氧基羰基,氰基,二烷基氨基和氢; R 2和R 3各自独立地选自C 1-4烷基,苄基和被选自以下的成员取代的苄基: 由C 1-3烷基,卤素,烷氧基,氨基甲酰基,烷氧基羰基,氰基和二烷基氨基组成的组; X是选自卤化物,氢氧化物,硫酸盐,硫酸氢盐和羧酸盐的阴离子。
摘要:
Systems and methods according to embodiments provide elasticity for complex event processing (CEP) systems. Embodiments may comprise at least the following three components: (1) incremental query optimization, (2) operator placement, and (3) cost explanation. Incremental query optimization allows avoiding simultaneous computation of identical results by performing operator-level query reuse and subsumption. Using automatic operator placement, a centralized CEP engine can be transformed into a distributed one by dynamically distributing and adjusting the execution according to unpredictable changes in data and query load. Cost explanation functionality can provide end users with near real-time insight into the monetary cost of the whole system, down to operator level granularity. Combination of these components allows a CEP system to be scaled up and down.
摘要:
A cost monitoring system can monitor a cost of queries executing in a complex event processing system, running on top of a pay-as-you-go cloud infrastructure. Certain embodiments may employ a generic, cloud-platform independent cost model, multi-query optimization, cost calculation, and/or operator placement techniques, in order to monitor and explain query cost down to an operator level. Certain embodiments may monitor costs in near real-time, as they are created. Embodiments may function independent of an underlying complex event processing system and the underlying cloud platform. Embodiments can optimize a work plan of the cloud-based system so as to minimize cost for the end user, matching the cost model of the underlying cloud platform.
摘要:
The invention is directed to a simple and new method for the homogeneous synthesis of cellulose ethers. Ionic liquids are not only used as solvent, but also as reaction media for the homogeneous etherification of cellulose. The dissolved cellulose is treated with the etherification agent in the absence of organic and/or inorganic bases and in the absence and/or in the presence of moderate amounts of water. The obtained cellulose ethers show new distributions of substitution on the polymer chain, resulting in new properties and applications.