An efficient clustering method of assigning nearest cluster center
Hongbo Zhou
Sch J Eng Tech | 591-594
DOI : 10.36347/sjet
Abstract
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K-means is a numerical, unsupervised, non-deterministic, simple iterative cluster method. k-means algorithm
computes the distances between data point and all centers in iterative process, this is computationally very expensive
especially for huge datasets. we propose an improved k-means algorithm to preprocess an efficient way for assigning
data points to clusters. The improved method avoids large number of iterations, and saves running time. Experimental
results show that the improved method can effectively improve the speed of clustering and accuracy, reducing the
computational complexity of the k-means.
An outlier detection algorithm based on clustering
Hongbo Zhou, Bingbing xu, Juntao Gao
Sch J Eng Tech | 595-599
DOI : 10.36347/sjet
Abstract
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Outlier detection is a very important type of data mining, which is extensively used in application areas. The
traditional cell-based outlier detection algorithm not only takes a large amount of time in processing massive data, but
also uses lots of machine resources, which results in the imbalance of the machine load. This paper presents an distancebased outlier detection algorithm. These experiments show that this improved algorithm is able to effectively improve the
efficiency of the outlier detection as well as the accuracy.
Design and FPGA Implementation of UART Using Microprogrammed Controller
Mohammad Awedh, Ahmed Mueen
Sch J Eng Tech | 600-608
DOI : 10.36347/sjet
Abstract
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This paper presents an implementation of Universal Asynchronous Receiver-Transmitter (UART) controller
based on Microprogrammed Controller on Field Programmable Gate Array (FPGA. Our design of UART is fully
functional and synthesizable. It is coded using Verilog based top-down hierarchical design methodology and realized in
Spartan-3E FPGA using Xilinx ISE Webpack 14.7. The implementation results demonstrate that the design can operate
at a maximum clock frequency of 218.248 MHz. The maximum clock frequency of hardwired implementation of UART
controller is 192
.
773 MHz. We also compare our Microprogrammed implementation of UART controller to the standard
ROM method; our implementation uses less number of bits and hence small number of storage elements.
High resolution sequence stratigraphic analysis of the 1 blocks of the ancient block of the block of the Daqing Oilfield
Zhang Yaqi, Ma Shizhong, Li Yanchen
Sch J Eng Tech | 612-620
DOI : 10.36347/sjet
Abstract
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According to the core, drilling, logging, seismic and combined with the production test and other data,
application of high resolution sequence stratigraphy theory, the Daqing oilfield in the ancient 1 block of the oilfield H2
oil layer group is divided into 1 Mid cycle, 10 short-term cycles, 1 blocks of the Daqing oil field, the formation of single
sand body level high resolution sequence stratigraphic framework, for the study of the small layer, the connectivity of
sand and sand body, as well as the study of sedimentary microfacies provides a very important significance for oil and
gas exploration and development.
Low-cost Brain-Computer Interfaces
A. Szalowski, D. Picovici
Sch J Eng Tech | 621-636
DOI : 10.36347/sjet
Abstract
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This article reviews and establishes the current state of research and technology for low-cost, portable and
easy to use Brain Computer Interface (BCI) suitable for non-medical applications such as communication, environmental
control, entertainment and gaming. The scope of this research is to analyse all possible technologies that are currently
available to enable channel of communication between humans and electronic devices using only cerebral activities. In
addition, the EMOTIV Epoc wireless EEG hardware has been reviewed
Research and development of fault zone in sand and mudstone interbed formation
Yanchen Li
Sch J Eng Tech | 637-639
DOI : 10.36347/sjet
Abstract
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Fault deformation mechanism and internal structure of fault zone are the basis of fault sealing and fluid
migration along the fault zone. The inner structure and the controlling effect of the internal structure and the control of
the oil and gas are studied. Pure sandstone in the formation of the non-consolidation, semi-solid rock, the deformation
mechanism of the particle boundary sliding, resulting in the particle rotation and rolling, that is, particle flow. During the
consolidation stage (porosity is more than 15%), the deformation mechanism is fractured, and the fault rock is the
fractured rock, and the microstructure of the formation is fractured zone. During the consolidation stage (less than 15%),
the deformation mechanism is mainly characterized by rupture, the fault core is the fault zone, and the associated micro
structure type is fracture. The displacement pressure of fault rocks is related to the depth of the fault, the mud content of
the fault rocks and the extent of the fault rocks. At last, the paper puts forward the model of controlling hydrocarbon in
the fractured zone of sand and mud interbed formation.
A new non-monotone self-adaptive trust region method for unconstrained optimization
Baowei Liu
Sch J Eng Tech | 640-644
DOI : 10.36347/sjet
Abstract
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In this paper, we consider a novel non-monotone self-adaptive trust region method for solving unconstrained
optimization problem. Unlike the usual trust region methods, our proposed the new algorithm does not only uses current
iterative but also the previous information to update the trust region radius at each iteration. The global convergence of
the algorithm is established under some reasonable assumptions.
The Design for Hardware in the Loop Simulation Test Bench
Li Hui, Chen Hao, Wang Yunchao, Lu Changyu
Sch J Eng Tech | 645-650
DOI : 10.36347/sjet
Abstract
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HIL (Hardware in the loop) simulation test bench was developed based on the CarSim and LabVIEW
software. First of all, CarSim, Real-time vehicle dynamics software, was used to build parameterized model for vehicle.
Secondly, HIL simulation system, including vehicle steering wheel Angle, accelerator, brake, gear physical signals, was
established based on the LabVIEW RT which was the real-time simulation environment of LabVIEW. And the steering
wheel Angle sensor signal, throttle brake pedal sensor signal, gear sensor signal was introduced into the vehicle
dynamics model through the hardware interface. Finally, the lemniscate road simulation test was used to verify the
validity of the HIL simulation test platform. Lemniscate road simulation test included driver model simulation test and
driver's practical operation HIL simulation test.