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Wind turbine power curves are greatly important for monitoring the turbine performance, forecasting the power generation and mitigating the system unreliability. However, the presence of abnormal values in the power curves affects the modelling of normal turbine behavior, conversely. This study explores the anomalies in the raw power curve data of a wind turbine and offers a robust outlier detection...
Elastic resource scaling is a key feature of cloud computing. The most popular approach to managing elasticity is scale-out, but this approach sometime incurs performance problems, especially for service with rapid workload change. So we proposed the hybrid auto-scaling method which use both scale-out and scale-up as workload pattern. However, the effect of the method depends on the parameters. Moreover,...
Rapid expansion of Advanced Driver Assistance Systems (ADAS) applications has resulted in development of many new algorithms that are applied in solving various challenging problems. These algorithms need to be implemented on existing ADAS platforms which are usually heterogeneous in order to maximize computing power, while minimizing power consumption. The problem becomes how to efficiently decouple...
Program coverage is used across many stages of software development. While common during testing, program coverage has also found use outside the test lab, in production software. However, production software has stricter requirements on run-time overheads, and may limit possible program instrumentation. Thus, optimizing the placement of probes to gather program coverage is important. We introduce...
This paper presents a novel technique based on System Verilog assertions to optimize the consumed power of RTL designs. The proposed technique helps the designer to enhance his RTL code towards achieving low power design. The designer codes the proposed technique according to the design specifications and integrates the coded technique into his test bench. The coded technique generates directive massages...
With the evolution of wireless technologies Wireless Sensor Network(WSN) have gained tremendous exposure in field of sensing remote places. For researchers WSN has been most sought for field due to its wide area of applications and usefulness. Day by day new technologies are evolving with new and efficient features, which keep this field live for development and research oriented work. The key component...
According to 2015 Performance Reports, the Ministry of Foreign Affairs' Key Performance Indicator (KPI): Percentage of Information Technology Master Plan Implementation performance falls into the poor category. Through root cause analysis, it is identified that the KPI's poor performance is caused by the evaluation of information technology (IT) governance has never been performed. By performing such...
In order to capture all the fault points of voltage sag in distribution network, based on improved MRA method, an optimal allocation method of voltage sag monitors in multi voltage grades distribution network is proposed. All buses in the system are classified according to the voltage grades. When the fault point is located at different voltage grades of the system, the corresponding zero sequence...
This paper presents a power management strategy for islanded microgrids. The proposed strategy utilizes the MultiAgent System (MAS) to perform the required tasks. The strategy is divided into two stages. The first stage is an operational planning stage which aims to optimize the operation of the microgrid in the islanded mode. This is achieved by performing Optimal Power Flow (OPF) periodically in...
Number of maternal and infant mortality in Indonesia is high. This problem can be minimized by monitoring the fetal condition via ultrasound image. In addition, Indonesia have small number of obstetrics and gynecology compare to number of its population. Moreover, it is centralized in urban areas, so it is hard to monitor the condition of every babies in Indonesia. In order to resolve this problem,...
A lot of problems appear because that there are many differences between traditional welding process and industrial robot welding process, such as type selection of industrial robots, welding power configuration, and welding parameter adjustment, etc. On the basis of analyzing links in welding services of industrial robots, a platform of networked service in industrial robot welding was designed in...
Test point optimization selection is an effective way to decrease test cost and time. This paper proposes a method of test point optimization selection based on qualitative fault propagation analysis. Firstly, a qualitative fault propagation model based on physical relations is built. Secondly, the responses of available test points under normal state and failure state are analyzed, and the Mahalanobis...
A major drawback of mobile devices is limited battery life. Apps that use graphics are especially energy greedy and developers must invest significant effort to make such apps energy efficient. We propose a novel static optimization technique for eliminating drawing commands to produce energy-efficient apps. The key insight we exploit is that the static analysis is able to predict future behavior...
Innovative air traffic concepts of operation are now possible that enable novel allocations of authority and responsibility between air and ground, and between humans and automation. This paper proposes a systematic approach for the synthesis of allocations of authority and responsibility early in the design of a concept of operations to achieve its performance and safety goals. The methodology models...
This paper proposes an algorithm that can maximize the total harvested energy of a single-inductor buck-boost converter operating with multiple input energy sources. It does so by dynamically adjusting the turn-on times and allocating the available time slots for the individual input sources in such a way that all the sources require equal turn-off times for the buck-boost converter to meet the zero-current...
Nowadays, the energy price is rising. The consciousness of environmental sustainability of governments and customers has been ever increasing. Consequently, manufacturing enterprises are increasingly motivated to reduce the energy cost involved in their production activities. This paper proposes a novel production scheduling method to minimize the energy cost involved in the production at the unit...
Currently, Business Process Model and Notation (BPMN) has becoming one of the main languages for creating a description of processes and developing executable frameworks for the management of the process itself. In this context, one important aspect of process management is the possibility of process analysis and optimization, which many times relies on real data collected during the process execution...
False sharing is a notorious performance problem that may occur in multithreaded programs when they are running on ubiquitous multicore hardware. It can dramatically degrade the performance by up to an order of magnitude, significantly hurting the scalability. Identifying false sharing in complex programs is challenging. Existing tools either incur significant performance overhead or do not provide...
Memory access latency continues to be a dominant bottleneck in a large class of applications on modern architectures. To optimize memory performance, it is important to utilize the locality in the memory hierarchy. Structure splitting can significantly improve memory locality. However, pinpointing inefficient code and providing insightful guidance for structure splitting is challenging. Existing tools...
Railway companies need to achieve higher capacities on existing infrastructures such as high density suburban mainlines. Communication based train control (CBTC) systems have been widely deployed on dedicated subway lines. However, deployment on shared rail infrastructure, where CBTC and non-CBTC trains run, leads to a mixed positioning and controlling system with different precision levels and restrictions...
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