Miracle-dz/UniFAR-FTUs huggingface dataset:
3D Video Quality Assessment

Quality is a fundamental concept closely linked to measuring performance in systems, products and services. Any compression and representation technique in audiovisual signals needs metrics of quality, not only in their design stage but also in demonstrating their superior performance when compared to state of the art. Some believe that the main reason for the failure of previous waves of 3D was the lack of a minimum quality requirement in 3D. It is therefore important to consider mechanisms of 3D vision in humans, and their underlying perceptual models, in conjunction with the type of distortions that today and tomorrow 3D video processing systems produce. In this chapter, we will examine some parts of this complex puzzle, by mainly focusing on an important issue, namely, how to measurement 3D visual quality, as an essential factor in the success of 3D technologies, products and services.
Preparation of MR Fluid and Modeling of Magneto Rheological Fluid Brake (MRB)

Magneto-rheological fluids are smart fluids displaying flow properties that can be adjusted by the introduction of magnetic fields. Conventional brakes require complex mechanical parts to dissipate energy, they are having more weight, produce less braking torque and the time of response is about 300-500 milliseconds and hence brake distance is high. A Magneto-rheological fluid brake is efficient than conventional braking system in terms of the weight reduction, and response time. In this paper MR fluid is prepard and an improved MRB design is made, taking into account the temperature effects and more accurate description of the material properties as well. The proposed work is concerned with the development of a new Brake-by-wire system which employs MRF as working medium. The design procedure comprises the selection of materials for MRB, creating an analytical model for finding the braking torque produced by the MRB and Finite Element Analysis of the MRB.
Quantitative Modeling of Acid Wormholing in Carbonates- What Are the Gaps to Bridge

The authors would like to thank Jamaliah Abu’Rabie – PhD student of King Abdullah University of Science and Technology (KAUST) for much of the reaction kinetics experimentation used in this study as part of a summer internship program, and Mohammed Abdul Muqtadir of Schlumberger’s Dhahran Research Center for all aspects of the experimentation, core flow and reaction kinetics. Additional aknowledgements go to Sarmad Khan and his supervisor, Dr Abdullah Sultan of King Fahd University of Petroleum and Minerals (KFUPM) for assisting in the experimentation and core CT scanning.
Optimization of Low-Level Controllers and High-Level Polymer Grade Changes

Two design problems at different levels in the control hierarchy are considered; optimization of robust low-level controllers with constrained control signal activity and optimization of economical high-level polyethylene grade changes. As for the first design problem, a constraint on control signal activity due to measurement noise is presented and used when optimizing and comparing PI/PID controllers with measurement filters of different orders. The results show increased performance when roll-off is present in the feedback loop and that similarities exist between PID and high-order Youla-parametrized controllers. Robustness margins separating the dead-time uncertainty from other process uncertainties are presented. Methods to compute the margins, posed as optimization problems based on Nyquist diagram interpretations, are given. PID and predictive PI (PPI) controllers with measurement filters are optimized and compared using the presented control signal activity constraint and robustness margins. The two controllers show similar performance on industrially representative processes, with a few exceptions where the PID controller outperforms the PPI controller. Concerning the second design problem mentioned above, a cost function for optimization of economical polyethylene grade changes is proposed. It considers inflow costs, on- and off-grade polymer production revenues and polymer quality variable intervals to define on-grade production as well as economical incentives for on-target production. Using the JModelica.org platform, several stationary operating points and dynamic grade changes are optimized with regards to economy. The optimizations are based on Modelica models of both a gas-phase polyethylene reactor and the polyethylene plant PE3 at Borealis AB. The results show that economically optimal grade changes can be divided into three phases with distinguishing features, and that the synchronization of control flows and the usage of recycle area off-gas flows are important. A Modelica library for the plant PE3 at Borealis AB, including three reactors and three distillation columns, is presented.
An Exploration of Community Detection and Recommendation Systems (CDR) in Social Networks

Community detection and Recommender systems are assumed as significant parts in helping the web users discover important information by proposing information of likely interest to them and a central task for network analysis means to segment a network into numerous substructures to assist with uncovering their inactive capacities. Community detection has been widely concentrated in and extensively applied to numerous real world network problems. Because of the possible worth of social relations in recommender systems, social recommendation has drawn in expanding consideration in recent years. As the issues that network strategies attempt to solve and the network information to be determined become progressively more complex, new methodologies have been proposed and created, traditional ways to deal with community detection and recommendation commonly use probabilistic graphical models and implement an assortment of earlier information to deduce community structures. Regardless of all the new progression, there is as yet an absence of astute comprehension of the hypothetical and methodological supporting of local area location, which will be fundamentally significant for future advancement of the space of social network analysis. In this paper, we start by giving conventional meanings of social networks terms and talk about the novel property of social networks and its implications. Unified architecture of network community finding methods to characterize the state-of-the-art of the field of community detection. In particular, we give a complete survey of the current community detection techniques and audit of existing recommender systems examine some exploration bearings to further develop social network capabilities.
An innovative approach to salvage a fractured endodontically treated tooth – A case report of resection, regeneration and restoration

Introduction: The progressing inflammatory periodontal disease, if untreated, results in attachment loss. This can affect the furcation region of multirooted teeth. Hemisection is the splitting of two rooted tooth into two separate portions accompanying crown portion of tworooted teeth most likely mandibular molars. In the healing phase after hemisection, alveolar bone undergoes additional atrophy as a result of the natural remodelling process. Post-extraction Alveolar Ridge resorption may have an impact on dental implant placement, since sufficient vertical and horizontal volume of alveolar bone should ideally be present at the site of insertion. Alveolar ridge preservation (ARP) procedures have been introduced for aesthetic concern, as well as to prevent alveolar ridge atrophy and maintain adequate dimensions of bone in order to facilitate implant placement in prosthetically driven positions. Case Description: A 51 years old systemically healthy male patient came with a chief complaint of pain and swelling in his lower left back tooth region. On clinical examination, Endodontically treated mandibular first molar manifested bucco-lingual fracture, grade 2 mobility of mesial component, 10 mm probing depth in mesial region and grade 3 furcation involvement. The treatment of the tooth included proposed hemisection of the mesial component followed by socket augumentation and delayed implant placement. After phase 1 therapy, hemisection was performed and mesial root socket was augumented with zenograft and PRF membrane. After 8 months, Osteotomy site was prepared with flapless procedure then narrow, two piece implant of size 3.3 × 11.5 mm was placed in hemisected region of mandibular molar which was followed by provisional restoration at 3 weeks. Conclusion: An innovative approach for a periodontally compromised fractured endodontically treated tooth which was undertaken with a definitive treatment.
A Trust Management Model in Electronic Commerce Applications

Most current trust management systems cannot precisely reflect the dynamic feature of trust status. Based on the fundamental trust management principles and the thin client requirements in electronic commerce applications, by introducing the concept of Important Factor in trust calculation, a centralized trust management architecture and an efficient trust evaluation method were proposed. The trust evaluation method advocates defining as less formulae as possible to enable a simple and efficient trust evaluation system. And the parameters in trust evaluation equation can vary to adapt to different application environments. The simulation shows the new trust management model could precisely reflect the dynamic feature of trust status.
Broadband waveguide slot array for SAR

A new kind of wideband waveguide slot array for synthetic aperture radar (SAR) is presented. Elliptical slots are first used for designing the waveguide slot antenna. An eight-element waveguide slot array operating at X-band is designed and measured. Predicted results are compared with measured data and good agreement is reported. The measured bandwidth for VSWR≤1.5 has reached 19.6%.
Financial Management of the Company for Financial Crisis

Corporate Finance is a business process the company forecast capital movement, organization, coordination, analysis and control of a decision-making and management activities. If the long-term store the excess corporate cash, will result in capital investment flow can not, can not be profitable. At the same time, enterprises need to expand production but difficult to raise funds. Therefore, SME Banking, the key is enterprise fund safety, liquidity and profitability of organic combination.
Direct Synthesis Controller Identification

Direct synthesis controller design approach has serious limitations when it is applied to plant models that have more complex models and models involving time delays. In such cases the design becomes more cumbersome and the time delay appears in the denominator making it difficult to realize. In order to get simple realizable controllers approximations of plant model and time delays are done. This leads to controllers with non-optimal parameters. In this paper, a new approach for designing the controller by combining direct synthesis approach and system identification is presented. The controller is identified from the plant model and the desired closed-loop without the need for approximating the plant model and the time delay and ensures that the controller parameters are optimal.
Large rotation angle micromirror based on hypocycloidal electrothermal actuators

A large rotation angle micromirror using hypocycloidal electrothermal actuators (HEAs) is presented. The mechanical rotation angle of the micromirror is ∼35° at 2.6 V in nonresonant mode. The Cr/Au coated square mirror plate is supported by two groups of HEAs in order to achieve single axis rotation. Four Al/Si bimorph structures are staggerly connected in parallel to form a HEA. This structure is experimentally demonstrated to increase the deflection angle. Moreover, the rotation axis keeps still and there is no lateral shifting effect. The −3 dB cutoff frequency was found to be about 29 Hz as the large signal frequency response.
Polarisation insensitive and tuneable optical add and drop multiplexer utilising vertically stacked buried semiconductor waveguides

A polarisation insensitive and tuneable optical add and drop multiplexer has been realised by utilising vertically stacked buried semiconductor waveguides. The difference in peak wavelength of the dropped light between the two orthogonal polarisations was as small as 0.03 nm, which is much smaller than the 3 dB bandwidth of 0.4 nm. The difference in peak power was also as small as 0.7 dB. Furthermore, polarisation insensitivity was maintained even during wavelength tuning.
Looking Good and Sounding Right: Style Counselling and the Aesthetics of the New Economy

Suggests that bosses choose staff for their self-presentational skills rather than technical skills or experience. The authors, Chris Warhurst and Dennis Nickson of Strathclyde University, believe that government training policy should try and help staff meet these needs. Everyone, not only middle-class professionals and politicians, should be prepared to make use of the image-makers. The survey was carried out in the Glasgow region but its findings are almost certainly applicable elsewhere in these islands. The authors asked employers about the things they looked for when hiring new employees. Key findings include a high ranking for personal presentation and appearance (above even initiative and communications skills), and very low ranking for technical skills.
Long range wind lidars based on novel high spectral brilliance all-fibered sources

New Lidar applications related to aircraft safety in the area of an airport include mapping wind velocity and monitoring turbulences within a radius longer than 8km in a short acquisition time (360° map in 1 minute). During landing and takeoff, a minimal distance separation between aircrafts is set by referring to wake turbulence categories. However, it was shown that wake vortices can dissipate quicker because of atmospheric turbulence (characterized by eddy dissipation rate - EDR) or can be transported out of the way on oncoming traffic by cross-winds. Long range scanning Lidars provide radial wind data that can be used to calculate EDR. To reach long range within a short acquisition time, coherent wind Lidars require high power (~kW), narrow linewidth (few MHz) pulsed laser sources with nearly TF limited pulse duration (~1μs). Eyesafe, all-fiber laser sources based on MOPFA (master oscillator, power fiber amplifier) architecture offer many advantages over bulk sources such as low sensitivity to vibrations, efficiency and versatility. However, narrow linewidth pulsed fiber lasers and amplifiers are usually limited by nonlinear effects such as stimulated Brillouin scattering (SBS) to 300W with commercial fibers. We investigated various solutions to push this limit further. For example, a source based on a new fiber composition yielded a peak power of 1120W for 650ns pulse duration with excellent beam quality. Based on these innovative solutions we built a Lidar with a record range of 16km in 0.1s averaging time. In this proceeding, we present some recent results obtained with our wind Lidars based on these high power sources with record ranges. EDR measurements using the developed algorithm based on structure function calculation are presented, as well as its validation with simulations and measurements campaign results.
Automatic Power Supply for Residential Consumer Using Microgrid with Hybrid Power Supply

Abstract. This paper proposes a Power Management System (PMS) designed to supply continuous power for residential using low voltage Microgrid. The Microgrid equipped with a hybrid power supply includes, battery storage system and three power supplies: a wind mill, photovoltaic (PV) emulator and proton exchange membrane (PEM) fuel cell (FC). The connections of the energy resources to the common ac bus make use of power inverters with specific functionalities. The automatic power management system for the operation and control of the distributed energy resources connected to residential electric power installations, taking into account both the grid connected operating mode and the islanded operating mode. The PMS provides rapid response to support the critical load. It can also operate as a standalone system in case of grid failure like an incessant power supply. The operating behavior of the proposed automatic system is simulated by using MATLAB SIMULINK.
DROUGHT CONTINGENCY PLANNING : EVALUATING THE EFFECTIVENESS OF PLANS

This article reports results from a two-year research project to evaluate the effectiveness of drought contingency plans. The research developed a metalevel framework for evaluating plans before a drought. In addition, it applied this framework to an in-depth case study of a major metropolitan region, Atlanta, Georgia. This research discovered that drought plans have limited effectiveness when disconnected from larger scale and longer term planning. The requirement to prepare a plan does not necessarily invoke a substantive drought planning process. Disjointed local level plans, instead of coordinated planning efforts, have limited ability to mitigate impacts in widespread drought. Because the faith placed in plans may be misplaced, metropolitan regions may be unwittingly poised for a disaster. Recommendations include stronger links between drought plans and drought planning, inclusion of stakeholders and agency expertise, mechanisms for interagency coordination, and improved integration between drought plans and strategic water resources plans.
Performance of microstrip patch antenna with electrically thick laminated glass superstrate

The effects of a laminated glass superstrate on both the radiation pattern and the impedance bandwidth of a microstrip patch antenna are reported. It is shown that nulls that appear in the radiation pattern of the antenna, due to surface wave effects, can be successfully eliminated by the use of a layer of resistive film. The bandwidth of the antenna is significantly increased to approximately 20% while the gain is maintained at 5-6 dB.
Development of Work Zone Lighting Standards for Nighttime Highway Work

The results of a study to develop illumination guidelines for nighttime highway work are presented. Nighttime highway construction activities were identified and the seeing-task visual requirements for work activities were determined. Suggested illumination levels and lighting configurations were developed. In addition, hazard glare-control counter-measures were developed. A limited field demonstration of the suggested guidelines was conducted and the results are presented.
Research on Hydraulic Components Test System Based on Proportional Control Technology

Proportional control technology is widely used in many hydraulic systems. In order to measure the characteristics of hydraulic components, it is necessary to establish hydraulic components test system based on proportional control technology. In this paper, the test contents of hydraulic components are analyzed, the performance testing system is designed, the system construction is presented, and the computer test software is developed. The application results showed that the developed system has good value, which can not only be used directly in enterprise to solve the production problem, but also improve the utilization and reliability of hydraulic components.
Prototype Development of an Integrated Mars Atmosphere and Soil-Processing System

AbstractThe concept of living off the land by using the indigenous resources of the Moon, Mars, or other potential sites of robotic and human exploration has been termed in situ resource utilization (ISRU) and will be an enabling technology to open up the solar system. Although the most recent National Aeronautics and Space Administration (NASA) human Mars mission study (Design Reference Architecture 5.0) showed that production of propellants and life support consumables was a mission-enabling capability, mission planners were hesitant to select the newly proposed water extraction from Mars soil option because of the perceived high risk associated with this approach. To overcome resistance in putting ISRU capabilities in the critical path of mission success, NASA ISRU developers have adopted the approach of designing and building hardware into end-to-end systems at representative mission scales and testing these systems under mission-relevant conditions at analog field test sites. Previous ISRU field demo.
Electrically Small Broadband VHF/UHF Planar Antenna Matched Using a Non‐Foster Circuit

A broadband non‐Foster matched Planar Inverted‐F Antenna is proposed for 100–500 MHz VHF/UHF handheld terminal applications. The proposed design shows that in the lower frequencies antenna gain improvement of as much as 25 dB can be obtained with the help of the broadband matching circuit for a small antenna on a 0.05 wavelength ground plane at the lowest frequency. The issues of RF power versus matching and circuit stability are pointed out. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2494–2497, 2013
Manufacturing Systems Research: Where are the Boundaries?

This paper supports project based research and agrees with the view that it is impossible to draw a boundary around a group of subsystems in the real world so as to research only these. All aspects of the manufacturing system including strategy, management style and organisational structure are involved potentially. Project based research has produced little in the way of generalisable results, and in some cases is difficult to distinguish from management consultancy. What needs to be understood better are the methodologies of a general nature. The main movements are likely to be away from calculation towards data analysis and definition, and away from mathematical models towards formal descriptive models.
Cramer-Rao Bound for Parameter Estimation in Narrowband Bistatic MIMO Radar

The problem of Cramer-Rao bound for parameter estimation in norrowband bistatic Multiple-Input Multiple-Output (MIMO) radar system is considered. In this paper, we propose a new narrowband signal model to accurately estimate parameter from a moving target. The Cramer-Rao bound for target parameter estimation is derived and computed in closed form which shows that the optimal performance is achieved. Target location and parameter estimation performances are evaluated and studied theoretically and via simulations.
Synchronous generator third-order model parameter estimation using online experimental data

A method to estimate the dynamic parameters of the commonly used third-order d - q model of a synchronous generator, based on measured electrical power, reactive power, terminal voltage, field current, field voltage and rotor angle following a small perturbation of the field voltage, is described. The parameters are estimated from two newly developed nonlinear functions for electrical power and terminal voltage by using a nonlinear least squares (NLS) algorithm. Results of simulation studies and experimental data collected from an 80 MVA, 10.5 kV generator show the efficacy of the proposed method and also reveal that the proposed method is valid for a wide range of operating conditions. For cases where rotor angle is not available, a new method for rotor angle estimation is also proposed.
What We Find

In debates concerning videogames and the freedom of expression, two lines of argumentation have traditionally been put forward: That games express ideas and that they for this reason are in principle entitled to the protection of free speech in the same sense as other expressive media; or that their interactive nature makes them different in how they reflect our world back to us compared to what traditional media do and that they for this reason also may be more harmful (Hakimi 2019). They are argued as being either mainly expressive or mainly interactive, making them either comparable to traditional media, or very different and unique.