Miracle-dz/UniFAR-FTUs huggingface dataset:
Modeling Cybercafé Internet Service for Revenue Optimization under Stochastic Demand

: We consider a set of cybercafés faced with an optimal choice of bandwidth for internet service under stochastic stationary demand. The choice is made over uniformly time horizons with a goal of optimizing revenue for internet service provision. Considering customer demand and price for internet service at cybercafés, we formulate a finite state markov decision process model where states of a markov chain represent possible states of demand for internet service. A revenue matrix is generated; representing the long run measure of performance for the Markov decision process problem. The problem is to determine an optimal bandwidth adjustment policy at cybercafés so that the long run revenue generated is maximized for a given state of demand. Using dynamic programming, the optimal bandwidth adjustment policies are determined over a finite period planning horizon. Results from the case study demonstrate the existence of an optimal state-dependent option for bandwidth adjustment policy and revenue generated from internet service provision at the cybercafés.
Design, Improvement, Development, and Performance Analysis of a Collection of Model Developed From Naïve Bayes and Maximum Entropy Opinion Mining Classifiers for Movie Reviews

The internet is a basic platform for people from every one walks of life to interconnect and convey opinions on the topic of their choice. Almost every website asks for comments, suggestions and reviews. Exploring opinion and determining a person‟s views is itself a large subject in computer science, known as Opinion Mining, also called Sentiment Analysis There are different sentiment classifiers, the most admired of which are the Naïve Bayes classifier, maintain Vector Machines (SVM), Maximum Entropy classifier, to name a few. In this paper, here we are analyzing the efficient performance of the Naïve Bayes also about the Maximum Entropy classifiers. Here we analyze and examine how bigrams perform better than unigrams in sentiment analysis. We further propose a serialized ensemble model of the two as a hybrid algorithm and analyze its performance as well.
High-Temperature Dielectric Materials for Electrical Energy Storage

The demand for high-temperature dielectric materials arises from numerous emerging applications such as electric vehicles, wind generators, solar converters, aerospace power conditioning, and downhole oil and gas explorations, in which the power systems and electronic devices have to operate at elevated temperatures. This article presents an overview of recent progress in the field of nanostructured dielectric materials targeted for high-temperature capacitive energy storage applications. Polymers, polymer nanocomposites, and bulk ceramics and thin films are the focus of the materials reviewed. Both commercial products and the latest research results are covered. While general design considerations are briefly discussed, emphasis is placed on material specifications oriented toward the intended high-temperature applications, such as dielectric properties, temperature stability, energy density, and charge-discharge efficiency. The advantages and shortcomings of the existing dielectric materials are identified. Challenges along with future research opportunities are highlighted at the end of this review.
Wave energy for electricity generation in Malaysia - Merang shore, Terengganu

Malaysian government introduced Small Renewable Energy Power (SREP) Program in 2001. In this paper, it dis cussed the possibility to utilize ocean wave in Merang shore, Terengganu, Malaysia. Besides, this paper also discusses the current technologies have been used to convert wave energy to electricity. The work principle of the devices also present in this paper. After that, sea condition in Malaysia was explored to study the possibility of utilization of wave energy in Malaysia. Finally, It is found Merang shore is the idea location to utilize the wave energy in Malaysia. Mean wave height and mean wave period at the location are 0.95 meter and 3.5 second. Also, attenuator type wave converter developed by Wave Star was considered as one of the possible devices to install at the location. From the calculation, the research obtained that the total r ate of electrical power possible to grid is 649 MWh a year if only on e set of C5 Wave star device install at Merang shore, Terengganu.
Optimize Design of full subtractor using 45nm Technology

full swingi.ehigh noise margin gate diffusioninput (FSGDI) technique whose performance has been compared with full subtractor circuits employing CMOS, transmission gates (TG),) and gate diffusion input (GDI). It has been observed that the FSGDI based full subtractorhas good noise margin compared to GDI technique and less number of transistor count compared to CMOS.
IN VITRO BIOCHEMICAL ASSESSMENT OF ANTIOXIDANT POTENTIAL OF AN AYURVEDIC HERBAL EYE DROPS FOR DRY EYE SYNDROME

Dry Eye Syndrome is a leading cause of ocular discomfort affecting millions of people. Dry Eye conditions are a spectrum of disorders with varied aetiology ranging from mild eyestrain to very severe dry eyes associated with visual complications. Dry eye is a condition produced by the inadequate interrelation between lachrymal film and ocular surface epithelium, and is caused by quantitative and qualitative deficits in one or both of them. Ocular surface conditions may result from the abnormalities in one or more of the tear film components, ocular or systemic diseases, various drugs and even environment factors. Oxidative stress is involved in many surface ocular diseases including dry eye syndrome (DES). The anterior eye segment and mainly the cornea are directly affected by the hazards from potential oxidative damage evoked by air pollution, radiation, chemicals as evident by proven role of oxidative stress in the pathogenesis surface ocular disease. Further certain scientific studies have demonstrated beneficial effects and protective role of topical and oral antioxidants in the management of surface lesions like dry eye disease. Along with measures such as tear preservation, use of tear stimulants, tear substitutes and control of infection, the advocacy of topical and oral antioxidant agents also forms an important component in the management of dry eye syndrome (DES). Owing to its importance, the biochemical assessment of antioxidant potential of the Ayurvedic herbal eye drops formulated for dry eye syndrome was performed. The plant based ingredients of the eye drop possess promising leads for their antioxidant, anti-inflammatory; anti-microbial potential. The study encompasses biochemical antioxidant assays viz. Nitric oxide radical scavenging assay, ABTS radical scavenging assay, DPPH radical scavenging assay and Ferric reducing antioxidant potential (FRAP) assay . These studies revealed significant antioxidant potential of herbal eye drops, possibly compliment to the management of dry eye syndrome and marinating the surface ocular health.
On the reliability of the nervous (Nv) nets

This paper investigates the reliability of a particular class of neural networks, the Nervous Nets (Nv). This is the class of nonsymmetric ring oscillator networks of inverters coupled through variable delays. They have been successfully applied to controlling walking robots, while many other applications will shortly be mentioned. The authors will then explain the robustness of Nv nets in the sense of their highly reliable functioning--which has been observed through many experiments. For doing that the authors will show that although the Nv net has an exponential number of periodic points, only a small (still exponential) part are stable, while all the others are saddle points. The ratio between the number of stable and periodic points quickly vanishes to zero as the number of nodes is increased, as opposed to classical finite state machines--where this ratio is relatively constant. These show that the Nv net will always converge quickly to a stable oscillatory state--a fact not true in general for finite state machines.
Probolarina and Streptaria, two cenozoic rhynchonellide brachiopods new to New Zealand

Abstract Probolarina chathamensis, a new species of semicostate rhynchonellide brachiopod, is widespread in limestones and calcareous tuffs of Late Palaeocene — Early Eocene age (Dannevirke Series) on Chatham Island and Pitt Island. The genus was previously known only from the Eocene of North Carolina. Related smooth rhynchonellides with a twisted commissure, from the Mid-Miocene of Taranaki, are placed in the genus Streptaria.
Numerical Solutions of the Symmetric Regularized Long Wave Equation Using Radial Basis Functions

In this study, the nonlinear symmetric regularized long wave equation was solved numerically by using radial basis functions collocation method. The single solitary wave solution, the interaction of two positive solitary waves and the clash of two solitary waves were studied. Numerical results and simulations of the wave motions were presented. Validity and accuracy of the method was tested by compared with results in the literature.
Delay-limited Computation Ofﬂoading for Mobile Blockchain Networks in Edge Computing

In this paper, we present new mobile blockchain networks with the help of a mobile edge computing (MEC) server, where all mobile users participate in the proof-of-work (PoW) mining process. To maintain a stable block time of mobile blockchain networks, we formulate delay-limited computation ofﬂoading strategies of PoW-based mining tasks as a non-cooperative game with maximizing the individual revenue in the MEC-assisted mobile blockchain networks. Then we analyze speciﬁcally the sub-game optimization problem and prove the existence of Nash equilibrium (NE) of this non-cooperative game. Moreover, we design an alternating iterative algorithm based on continuous relaxation and greedy rounding to acquire NE of this game. Given optimal computation ofﬂoading strategies, we also derive the optimal transmission power for the individual user within the maximum mining delay range. Our proposed algorithm can efﬁciently attain optimal delay-limited computation ofﬂoading and transmit power strategies for all users. The individual transmission power extends accordingly with the optimal computation resource allocation strategies for all users. Different parameters, such as the number of users, block size
EFFICIENCY OF DIFFERENT SCHEDULES OF POTASSIUM FOLIAR APPLICATION ON YIELD, YIELD COMPONENTS AND SOME PHYSIOCHEMICAL PROPERTIES OF HYBRID RICE UNDER SALINE SOIL CONDITIONS

In order to overcome root media problems in feed application of Potassium under saline soil conditions, we carried out this investigation at El- Serw Agricultural Research Station, Agricultural Research Center, Egypt during 2009 and 2010 seasons in randomized complete plot design with four replication to study various schedules of potassium foliar sprays application with 2% K 2 O once at maximum tillering stage, twice at both maximum tillering growth and panicle initiation growth stages or thrice at maximum tillering growth, panicle initiation growth and booting growth stages along with root media application as basal with ( 58kgK 2 O/ ha.) and control (without any application) on yield, yield components and some physiochemical properties of Egyptian hybrid Rice one( ERH 1 ) under saline soil conditions. The results obtained revealed that potassium application either though root media as basal application or foliar sprays at different growth stages surpassed the control in all studied parameters. Foliar sprays of K with 2% K 2 O at different growth stages of rice plant showed significant superiority in plant height, number of panicles/ unit area, sterility %, number of grains/ panicle, panicle weight, 1000 grain weight, grain yield and some of physiochemical parameters compared with potassium as basal application. Among schedules of K foliar sprays application, data recorded that multi - way scheme of K foliar sprays application with 2 % K 2 O at maximum tillering stage, panicle initiation stage and booting stage significantly produced the peak values in yield, yield components as well as physiochemical properties compared with the rest of K foliar sprays application under study. Finally, from the obtained could be that K foliar sprays with 2% K 2 O thrice at natal growth stages; maximum tillering stage, panicle initiation stage and booting stage is much sufficient to improve yield and yield components as well as physiochemical properties of Egyptian hybrid rice under saline soil conditions.
The evolving polarised jet of Swift J 1745 − 26 13

Swift J1745−26 is an X-ray binary towards the Galactic Centre that was detected when it went into outburst in September 2012. This source is thought to be one of a growing number of sources that display “failed outbursts”, in which the self-absorbed radio jets of the transient source are never fully quenched and the thermal emission from the geometrically-thin inner accretion disk never fully dominates the X-ray flux. We present multifrequency data from the Very Large Array, Australia Telescope Compact Array and Karoo Array Telescope (KAT7) radio arrays, spanning the entire period of the outburst. Our rich data set exposes radio emission that displays a high level of large scale variability compared to the X-ray emission and deviations from the standard radio–X-ray correlation that are indicative of an unstable jet and confirm the outburst’s transition from the canonical hard state to an intermediate state. We also observe steepening of the spectral index and an increase of the linear polarization to a large fraction (≈ 50%) of the total flux, as well as a rotation of the electric vector position angle. These are consistent with a transformation from a self-absorbed compact jet to optically-thin ejecta – the first time such a discrete ejection has been observed in a failed outburst – and may imply a complex magnetic field geometry.
2 0 A ug 2 00 3 Nucleation times in the 2 D Ising model

A theoretical framework is presented for the estimation of nucleation times in systems with Brownian type dynamics. This framework is applied to a prototype system: the two-dimensional Ising model with spin-flip dynamics in an external magnetic field. Direct simulation results for the nucleation times, spanning more than four orders of magnitude, are compared with theoretical predictions. There are no free parameters; all system properties required by the theory are determined by simulations in equilibrium systems. Theoretical and simulation values are found to agree in most cases within 20%.
Radiatively and shock excited H2 in Magellanic H II regions

Near-IR spectroscopy of 14 small Magellanic Cloud H II regions has led to the detection of the 1-0S (1) transition of molecular hydrogen in 8 objects. In the latter, relatively strong emission due to the He I 4 3 S-3 3 P 0 transition was also found. As a consequence, low-resolution CVF spectrophotometry of (extragalactic) H II regions carries the danger of significantly overestimating the 1-0S (1) H 2 transition strength, and thereby the relative importance of shock excitation. In 5 objects (SMC : N81, N88; LMC : N83B, N159A5 and N160A2) various H 2 transitions were observed in order to identify the H 2 excitation mechanism.
Act Local, Act Global* Inﬂammation and the Multiplicity of “Vulnerable” Coronary Plaques A REVOLUTION IN OUR THINKING REGARDING THE PATHOGENESIS OF ACUTE CORONARY SYNDROMES

ontemporary clinical and laboratory data have challenged ur classical concepts of the pathogenesis of the acute oronary syndromes. Indeed, several independent lines of linical evidence have shown that critical stenoses cause only fraction of acute coronary syndromes (1). Rather, disrupions due to fibrous cap fracture or superficial intimal rosion frequently trigger acute coronary thromboses at sites f non-critical narrowing of coronary arteries. This shift in ur thinking has fostered the notion of the so-called vulnerable” or “high-risk” plaque (2,3) and spawned manfold attempts to develop methods for detection of the vulnerable” plaque (4), a quest predicated on the postulate hat local intervention could preclude plaque thrombosis
Surface fatigue crack identification in steel box girder of bridges by a deep fusion convolutional neural network based on consumer-grade camera images

This study conducts crack identification from real-world images containing complicated disturbance information (cracks, handwriting scripts, and background) inside steel box girders of bridges. Considering the multilevel and multi-scale features of the input images, a modified fusion convolutional neural network architecture is proposed. As input, 350 raw images are taken with a consumer-grade camera and divided into sub-images with resolution of 64 × 64 pixels (67,200 in total). A regular convolutional neural network structure is employed as baseline to demonstrate the accuracy benefits from the proposed fusion convolutional neural network structure. The confusion matrix is defined for prediction performance evaluation on the test set. A total of six additional entire raw images are used to investigate the robustness and feasibility of the proposed approach. A binary conversion process based on the optimal entropy threshold method is applied and closely followed to identify the crack pixels in the sub-images. The effect of the super-resolution inputs on accuracy is investigated. Results show that the trained modified fusion convolutional neural network can automatically detect the cracks, handwriting, and background from the raw images. The recognition errors of the fusion convolutional neural network in both the training and validation processes are smaller than those of the regular convolutional neural network. The super-resolution process hurts the general identification accuracy.
Coupled behavior of shape memory alloy-based morphing spacecraft radiators: experimental assessment and analysis

Thermal control is an important aspect of spacecraft design, particularly in the case of crewed vehicles, which must maintain a precise internal temperature at all times in spite of significant variations in the external thermal environment and internal heat loads. Future missions beyond low Earth orbit will require radiator systems with high turndown ratios, defined as the ratio between the maximum and minimum heat rejection rates achievable by the radiator system. Current radiators are only able to achieve turndown ratios of 3:1, far less than the 12:1 turndown ratio requirement expected for future missions. An innovative morphing radiator concept uses the temperature-induced phase transformation of shape memory alloy (SMA) materials to achieve turndown ratios that are predicted to exceed 12:1 via substantial geometric reconfiguration. Developing mathematical and computational models of these morphing radiators is challenging due to the strong two-way thermomechanical coupling not present in traditional fixed-geometry radiators and not widely considered in the literature. Although existing simulation tools are capable of analyzing the behavior of some thermomechanically coupled structures, general problems involving radiation and deformation cannot be modeled using publicly available codes due to the complexity of modeling spatially evolving boundary fields. This paper provides important insight into the operational response of SMA-based morphing radiators by employing computational tools developed to overcome previous shortcomings. Several example problems are used to demonstrate the novel radiator concept. Additionally, a prototype morphing radiator was designed, fabricated, and tested in a thermal environment compatible with mission operations. An associated finite element model of the prototype was developed and executed. Model predictions of radiator performance generally agree with the experimental data, giving confidence that the tools developed are able to accurately represent the thermomechanical coupling present in morphing radiators and that such tools will be useful in future designs.
Imaging Water-Sided Oxygen Concentration Fields at the Wind-Driven Air-Water Interface by Fluorescence Quenching

In this study, an imaging method to resolve horizontal oxygen concentration fields is presented. The technique is based on the transformation of a concentration gradient into fluorescence intensity. A water-soluble ruthenium complex indicator is quenched by oxygen. The boundary layer imaging setup has been mounted on a small annular wind-wave tank at the IUP Heidelberg. Measurement series have been performed for three different indicator concentrations (0 . 03 mmol L − 1 , 0 . 07 mmol L − 1 and 0 . 11 mmol L − 1 ) at wind speeds ranging from 2 m s − 1 to 7 m s − 1 . The recorded images clearly show gas transport footprints, which are qualitatively discussed. The mean brightness of image sequences is quantita-tively analysed. The oxygen quenching method has been implemented, and the setup is ready for further use.
Optimal Locationand Sizing of Capacitors on Radial Distribution Systems

Distribution system forms a major part in the power system as it is the link between bulk power transmission system and the consumer load. Distribution systems are growing in large and are stretched too far leading higher system losses, poor voltage regulation and poor power factor. These factors can be improved to a greater extent using reactive power compensation. As major part of the load in distribution system is of inductive type, reactive power compensation can be done by placing capacitor banks at optimal locations in the system. In this work, it is proposed to find optimal location and size of the capacitors to minimize the losses and improve the voltage profile in a given distribution system.
A Compact UWB Antenna with Single Wide Band-Notch for WLAN Band

In this paper the design of a novel and compact ultrawideband(UWB) printed monopole antenna with band notch characteristic of size 24 x 32 mm is proposed. This antenna is designed to cover the FCC bandwidth for UWB applications(3.1 -10.6 GHz) and have a band-notch to cover the 5.15-5.825 GHz band. The simulated and measured results show that the proposed antenna achieves a wide bandwidth from 3 to 14 GHz with successful band-notching. General Terms UWB Antennas, Planar antennas et. al.