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Context: A growing number of software organizations have been adopting Continuous DElivery (CDE) and Continuous Deployment (CD) practices. Researchers have started investing significant efforts in studying different aspects of CDE and CD. Many studies refer to CDE (i.e., where an application is potentially capable of being deployed) and CD (i.e., where an application is automatically deployed to production...
Everything in this universe is, to some extent, nonlinear in nature. For certain parameter values, a nonlinear dynamical system exhibits erratic behavior called chaos. In this paper, a novel yet simple method is presented for implementing nonlinear systems using operational amplifiers (op-amps) based circuits like integrators and subtractors. The non-linear function sin2 (x) has been written in terms...
Smart grid defines a modern power system with completely integrated, flexible and communicative power supply structure. It is becoming smarter by adding distributed energy sources, control and automation techniques and advanced information technologies resulting in increased degree of complexity. This complexity of smart grid systems brings along a new set of problems and it is imperative to address...
With the development of a hybrid system, flexible AC transmission system (FACTS) and high voltage direct current (HVDC) system are using to provide the control technique in the hybrid power system. In distributed power generation systems, the DC networks have more importance to handle the problem related to the DC power flow control in DC networks. Interline Power Flow Controller (IPFC) is a FACTS...
In this paper a preliminary characterization of an 8 × 6 pixels, FET-based THz imager with on-chip antennas is presented. The sensor was designed and fabricated in a standard 150 nm CMOS technology and it takes advantage of a Switched Capacitor Band-Pass Filter (SC-BPF) followed by a sampling and amplifying stage for the readout chain, implemented at the pixel level.
Pregnancy is an important moment of growth of the human being. In many case women do not know that she is being pregnant, this is one of the causes of miscarriage. For healthy pregnancy also need to be guarded by knowing abnormalities early in pregnancy. There are several early pregnancy disorder among others hyperemesis gravidarum, pre-eclampsia and eclampsia, hydatidiform mole, and ectopic pregnancy...
Indonesian text data from social media is one of large text data that interesting to be mined. Mining the insight knowledge from large text data need more effort and time to processed. Moreover, Indonesian text data from social media contains natural language, including slang that require special treatment. We propose incremental technique for more efficient mining process of large text data with...
This paper deals with the application of polyaniline conducting polymer as a new sensor material for detection of phenol. The sensor is designed using bare carbon paste electrode (cPE), nonimprinted polymer-modified electrode (CPE/NIP) and imprinted polymer-modified electrode (CPE/MIP). These electrodes were prepared by electropolymerization of the monomer (aniline) in the presence of phenol as the...
Partial shading condition (PSC) is the most serious concern of a photovoltaic (PV) system as it pointedly decreases the proficiency of PV system. The PV system generates numerous peaks in its output power characteristics curve under PSC. To track a global maximum power point (GMPP) with-in a suitable time limit, a consistent method is thus required. For achieving high performance, enhanced convergence...
This article investigates the dynamic interactions between four commodities prices and the exchange rate for an emerging economy, Malaysia. The literature has identified a series of contradictory claims in the support and against the accurate prediction of the exchange rate. This article provides a new methodology to perform a comparative analysis of the three machine learning techniques, namely:...
Power system stability is a serious concern of power system engineers and utilities especially after the recent occurrences of major events of black outs. Power factor improvement devices such as capacitors, optimally placed in series or shunt in any given network can improve its voltage as well as angular stability. Thermal limits of lines can be observed as the system is visible at all times through...
Since series capacitors change the effective transmission line inductive reactance, addition of series capacitors in lines can increase the amount of power transmitted on the same lines. Series capacitors provide reactive power, which can improve the system power factor and help in improving voltage profile. A sensitivity analysis has been carried out to select some of the most effective lines for...
In this paper, we present an analytical framework to evaluate the coverage in the uplink of millimeter wave (mmWave) cellular networks. By using a distance dependent line-of-sight (LOS) probability function, the location of LOS and non-LOS user equipment (UE) are modeled as two independent non-homogeneous Poisson point processes, with each having different pathloss exponent. The analysis takes account...
Heterogeneous networks are a key solution to serving the exponential surge in data volume and higher quality expectations. Nonetheless, such networks require the ubiquitous presence of fiber-to-the-cell to address the performance demands of 5G and fast-spreading small cells. To this end, innovative ways of optimizing the usage of realistic backhaul links are being investigated. In this work, we propose...
Cooperative spatial diversity allows for more robust wireless networks with higher capacity and data rates. These diversity gains, however, diminish with the multiple carrier frequency offsets (CFOs) that arise due to distributed transmissions over independent channels. A number of techniques have been proposed for multiple CFO estimation, however, their empirical performance remains to be analyzed...
In this paper, a novel low-complexity and spectrally efficient modulation scheme for visible light communication (VLC) is proposed. Our new spatial quadrature modulation (SQM) is designed to efficiently adapt traditional complex modulation schemes to VLC; i.e. converting multi-level quadrature amplitude modulation (M-QAM), to real-unipolar symbols, making it suitable for transmission over light intensity...
In this work we investigate the effect of WiFi offloading in improving the interaction of a Mobile Network with the Smart Grid. In order to make demand match supply, so as to prevent grid instabilities and to effectively use the produced power, the smart grid can issue some requests to its users to increase or decrease their consumption; the users that can positively respond to the smart grid requests...
High-performance and ultra-miniaturized mm-wave building block structures were demonstrated on panel-scale processed 3D glass packages for high-speed 5G communication standards at 28 and 39 GHz bands. To demonstrate the benefits of glass for 5G communications, various topologies of microstrip-fed patch antennas for different resonant frequencies and compact conductor-backed co-planar waveguides were...
Frequent itemset mining is a fundamental step in analysis of big data where correlation among the raw data in deemed necessary. In modern era the amount of data available for processing has grown exponentially, making it a stepper task for mining algorithms to provide solution in a timely manner. The software implementations are normally not efficient in handling such datasets thus focus on parallel...
Acrylonitrile Butadiene Styrene (ABS) is a thermo plastic material which is widely used for making bodies of countless electrical and medical appliances. It is low cost amorphous thermoplastic which belongs to poly styrene class of thermoplastics. It has very high tensile strength and almost unbreakable. It is a beneficial encapsulating and insulating material which is usually employed for indoor...
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