Humans have various kinds of needs, namely primary, secondary and tertiary needs. One of the activities to fulfill those needs is to carry out sales and purchase transaction. the development of knowledge and technolog...
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Humans have various kinds of needs, namely primary, secondary and tertiary needs. One of the activities to fulfill those needs is to carry out sales and purchase transaction. the development of knowledge and technology makes the process of sales and purchase transaction become easier. Currently, sales and purchase transaction can be carried out online. However, there are many concerns that occur in online transaction, especially during the current pandemic, in which virus can be carried on the purchased items. One of the efforts to reduce the spread of the virus is to carry out disinfection sterilization. Prototype sorting items for disinfection sterilization is one of ways to carry out automatic sterilization. this system uses a smart relay as its main component, and uses ladder diagram programming as instruction. the smart relay used is zelio with 10 I/O. It has an input in the form of a photoelectric sensor that will be directly if there is object in front of it. And also, the addition of a water level sensor is to measure whether the disinfection liquid is ready to use. the output of the smart relay is in the form of a sprayer to spray disinfection liquid, and a dc motor to move object automatically. the dc motor and sprayer become the important points in the disinfection sterilization process. the speed of the dc motor used is 114 RPM with a voltage of 4.4VDC, so that withthis speed, the object can reach the sprayer point within 3.5s for high object and 8s for short object. the use of a splitter is to direct short type object using a timer as a determinant of the degree of rotation. the degree of rotation produced must be 45o forward and backward rotation, and the timer used to obtain those degrees is 0.05s for the forward splitter servo motor and 0.1s for the opposite direction until it returns to its initial place.
Multiple time series data occur in many real applications and the alignment among them is usually a fundamental step of data analysis. Frequently, these multiple time series are inter-dependent, which provides extra i...
ISBN:
(纸本)9781713871088
Multiple time series data occur in many real applications and the alignment among them is usually a fundamental step of data analysis. Frequently, these multiple time series are inter-dependent, which provides extra information for the alignment task and this information cannot be well utilized in the conventional pairwise alignment methods. Recently, the joint alignment was modeled as a max-flow problem, in which boththe profile similarity between the aligned time series and the distance between adjacent warping functions are jointly optimized. However, despite the new model having elegant mathematical formulation and superior alignment accuracy, the long computation time and large memory usage, due to the use of the existing general-purpose max-flow algorithms, limit significantly its well-deserved wide use. In this report, we present BIdirectional pushing with Linear component Operations (BILCO), a novel algorithm that solves the joint alignment max-flow problems efficiently and exactly. We develop the strategy of linear component operations that integrates dynamic programming technique and the push-relabel approach. this strategy is motivated by the fact that the joint alignment max-flow problem is a generalization of dynamic time warping (DTW) and numerous individual DTW problems are embedded. Further, a bidirectional-pushing strategy is proposed to introduce prior knowledge and reduce unnecessary computation, by leveraging another fact that good initialization can be easily computed for the joint alignment max-flow problem. We demonstrate the efficiency of BILCO using both synthetic and real experiments. Tested on thousands of datasets under various simulated scenarios and in three distinct application categories, BILCO consistently achieves at least 10 and averagely 20-folds increase in speed, and uses at most 1/8 and averagely 1/10 memory compared withthe best existing max-flow method.
To improve power system reliability, it is important to reduce the amount of curtailed load when a contingency occurs. While comparing the conventional methods in load shedding, this paper presents a new approach base...
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ISBN:
(纸本)9781424487790
To improve power system reliability, it is important to reduce the amount of curtailed load when a contingency occurs. While comparing the conventional methods in load shedding, this paper presents a new approach based on sensitivity between line flows and bus power injections. the proposed method selects a set of buses for alleviating the overloaded transmission lines. the RBTS, IEEE-RTS79, and IEEE 118-bus test systems are used to examine the applicability of the proposed method. the results obtained are compared withthose of global optimization and heuristic approach from the amount of curtailed load and the computational burden points of view. It will be shown that the proposed method can reduce the computational time and efforts effectively while keeping the required accuracy.
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