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Based on the consideration of the client and the contractor's joint project profit, a compromise thought that both the client and the contractor deviate from their respective ideal solutions by an equal percentage is proposed, an optimization model of payment scheduling with generalized precedence relations in the progress payment model is constructed. Ultimately, an example is given to demonstrate...
As one of the key characteristics of software as a Service (SaaS), multi-tenancy aims to support massive customers by sharing application instances and databases. To achieve the high economies of scale, one of the most issues needing to be solved in the real industry is that, given a fixed number of nodes, how to optimally place on-boarding tenants to maximize the total supported number of tenants...
The virtual prototyping model of Crank and Link Mechanism of Engine was constructed on ADAMS software by three dimensional model which produced on three dimensional modeling software; Through theoretical analysis of inertial force and moment of Crank and Link Mechanism, dynamical simulation was carried on in ADAMS software, and then the position of mass point of Crank and Link Mechanism of Engine...
Take support structure as the object, studied the multi-objective optimization of optimization layout of structural materials and maximize natural frequency under multiple load cases. Based on the SIMP (solid isotropic material with penalization) method, compromise programming method was adopted to define objectives of multi-objective topology optimization. With the supporting structure for the study,...
Statistical analysis of massive data is becoming indispensable to science, commerce, and society today. Such analysis requires efficient, flexible storage support and special optimization techniques. In this demo, we present RIOT (R with I/O Transparency), a system that extends R, a popular computing environment for statistical data analysis. RIOT makes R programs I/O-efficient in a way transparent...
The multilayered film acoustic resonance biosensors operated in the thickness-shear mode, which can be utilized in liquid for biosensor applications. To obtain high sensitivity the biosensors operate at GHz, in which the thickness of the electrodes is comparable to that of the piezoelectric films, and their effects on the biosensors become important factors for performance optimizations of the biosensors...
Based on the previous researches and according to the milling characteristics of ball-end milling cutter, the cutting force model is established. Using empirical formula, the feed rate of NC codes of machining free-form surface is optimized under constraint of nearly constant cutting force, and so as to decrease the fluctuation of cutting force. Thus, the machining quality and efficiency of part are...
Shift schedules both for optimal dynamic performance and fuel economy are proposed in this paper for vehicles equipped with dual clutch transmissions. A range simulation model for DCT vehicles has been established to evaluate the effects on dynamic performance and fuel economy. A fuzzy logic controller for engine throttle and a PID controller for brake force are used for vehicle operation. The simulation...
An automotive active suspension system composes of a mechanical structure and a feedback controller. Conventionally, these two elements are designed sequentially, with the controller design subsequent to that of the mechanical structure design. The traditional design method cannot obtain the global optimum performances for the system. This paper presents an approach to integrate structural and control...
An ultra-precision vibration isolation platform composes of a mechanical structure and a feedback controller. Conventionally, these two elements are designed sequentially, with the controller design subsequent to that of the mechanical structure design. The traditional design method cannot obtain the global optimum performances for the system. This paper presents an approach to integrate structural...
In the process of training support vector machines (SVMs) by decomposition methods, working set selection is an important technique, and some exciting schemes were employed into this field. To improve working set selection, we propose a new model for working set selection in sequential minimal optimization (SMO) decomposition methods. In this model, it selects B as working set without reselection...
This paper presents a kind of optimization strategy which is aiming to optimize the clock tree in the timing sensitive region. By traversing through the clock tree, the timing sensitive region was found out. Then delayers and buffers can be added to or removed from this region according to the cases of single unassociated clock paths and multiple correlated clock paths. Meanwhile, the speed of transmission...
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