Miracle-dz/UniFAR-FTUs huggingface dataset:
Morphological characteristics of auricula in children from Kyustendil region (Southwest Bulgaria)

The shape of human auricula is characterized by specific features. The diversity of these individual characteristics can be used in forensic identification of individuals. Inter and intrapopulation variability in the shape of auricula is not thoroughly investigated neither in Bulgaria, nor worldwide. The present study was conducted in the town of Kyustendil (Southwest Bulgaria). The examined sample comprised 240 individuals of both sexes 120 school boys and 120 school girls (11 to 18 years of age). The shape of auricula and the absence/presence of tuberculum auriculae Darwini were defined by the scale of Schwalbe-Martin and Saller (1959). The most common form of both ears in the examined group is form 6 (60.00%) followed by form 3 with 20.83%. When an additional tuberculum Darwini was present, it was mostly asymmetrically positioned in both sexes. High percentage of individuals with ears positioned in a greater distance from the surface of the head was also established. Within the examined male group, 20.83% had prominent ears, the percentage was higher in comparison with the females, where the percentage was 1.66 % lower than in males.
Development of New Attachment System with Soft Lining Material for Implant-retained Complete Denture

Purpose: The retention of complete dentures is frequently difficult in edentulous patients with a severely resorbed residual alveolar ridge. In such cases, implant overdentures having a stronger retention force are useful. Although there are various types of attachment systems for implant overdentures, they are frequently complicated. We are, therefore, developing a simple attachment system focusing on a soft lining material for the female connector. The purpose of this study was to evaluate the retention force of implant overdentures applying a soft lining material for the attachment. Materials and methods: The models in which seven male and female connector pairs were used. As the control, a rubber O-ring attachment system, in which a rubber O-ring female was paired with a metal ball anchor (male), having a diameter of 1.7 or 2.2 mm. In the attachment system with a soft lining material, a female component was made up of soft lining material paired with a male having a diameter of 1.7, 2.2, 2.5, 2.7 or 3.0 mm. In measuring the retention force, the maximum force required to dislodge the male from the female was recorded by a digital force gauge. Results: With the rubber O-ring, the retention force was 2.9 ± 0.2 N for the 1.7 mm male and 3.3 ± 0.3 N for the 2.2 mm male; these values were higher than the respective retention forces when using a soft lining material as the female and a male of the same diameter. However, with the female comprising soft lining material, the retention force exceeded 4 N for the 2.5, 2.7 and 3.0 mm males and was higher than the retention forces for the rubber O-ring. Conclusion: The proposed attachment system with soft lining material for implant overdentures provides a clinically sufficient retention force when the diameter of the male exceeds 2.5 mm.
Occupancy-Based HVAC Control with Short-Term Occupancy Prediction Algorithms for Energy-Efficient Buildings

This study aims to develop a concrete occupancy prediction as well as an optimal occupancy-based control solution for improving the efficiency of Heating, Ventilation, and Air-Conditioning (HVAC) systems. Accurate occupancy prediction is a key enabler for demand-based HVAC control so as to ensure HVAC is not run needlessly when when a room/zone is unoccupied. In this paper, we propose simple yet effective algorithms to predict occupancy alongside an algorithm for automatically assigning temperature set-points. Utilizing past occupancy observations, we introduce three different techniques for occupancy prediction. Firstly, we propose an identification-based approach, which identifies the model via Expectation Maximization (EM) algorithm. Secondly, we study a novel finite state automata (FSA) which can be reconstructed by a general systems problem solver (GSPS). Thirdly, we introduce an alternative stochastic model based on uncertain basis functions. The results show that all the proposed occupancy prediction techniques could achieve around 70% accuracy. Then, we have proposed a scheme to adaptively adjust the temperature set-points according to a novel temperature set algorithm with customers’ different discomfort tolerance indexes. By cooperating with the temperature set algorithm, our occupancy-based HVAC control shows 20% energy saving while still maintaining building comfort requirements.
Laser-Based Online Sliding-Window Approach for UAV Loop-Closure Detection in Urban Environments

Online loop-closure detection serves as an essential task for Unmanned Aerial Vehicles (UAVs) equipped with laser scanners. Due to the inherent errors in UAVs' pose estimation, a 3-D reconstruction algorithm is adopted to perform 3-D map building, which establishes probabilistic models of the system according to the assumption of errors. To meet the demand of online loop-closure detection using sequential 2-D laser data, a robust ISW-NDT (incremental sliding-window-based NDT) approach is proposed, which compares the appearance similarity between two scans by sliding a window with fixed size. Compared with the conventional 3-D NDT approach, the proposed loop-closure detection algorithm is capable of providing superior performance in large-scale outdoor environments, achieving higher recall rate at 100% precision and ensuring successful online implementation. Experimental results show the validity and robustness of the proposed method.
Algorithm for Finding the Mobile Phone in a Cellular Network

Summary A cellular network is a wireless network made up of a number of cells. Each cell is served by a fixed transmitter known as a Base Station(BS). These cells are used to cover different areas in order to provide more coverage area in the network. This paper proposes an algorithm, which deals with finding a mobile phone within a cell based on the cell-id, signal strength and hellopacket delay. The proposed model is simulated and tested under various conditions and it has shown excellent results while finding mobile phone in the network.
Development, Engineering and Biological Characterization of Stirred Tank Bioreactors

Stirred tank bioreactors are still the predominant cultivation systems in large scale bio- pharmaceutical production. Today, several manufacturers provide both reusable and single-use systems, whereas the broad variety of designs and properties lead to devia- tions in biological performance. Although the methods for bioreactor characterization are well established, varying experimental conditions and procedures can result in sig- nificantly different outcomes. In order to guarantee a reliable comparison and evaluation of different single-use and reusable bioreactor types, standardized methods for their characterization are needed. Equally important is the biological capability of bioreactors, which must be accessed by standardized cultivation procedures of industrially relevant organisms (bacteria, yeasts as well as mammalian and animal cell cultures). In addition, the implementation of well-defined uniform procedures for biological and engineering characterization during the development phase can support a fast assessment of the suitability of a bioreactor system. Based on stirred bioreactors, we describe the aspects of the engineering characterization in order to discuss further the biological characterization as a valuable complement. Finally, a case study is presented.
Towards improved handling of uncertainty in cost-benefit analysis: addressing the ‘price-quality’ and ‘communication’ dilemmas

An important limitation of Cost-Benefit Analysis (CBA) is the inherent uncertainty in estimations of future welfare effects. In this paper, we argue that consideration of the ‘pricequality’ dilemma and the ‘communication’ dilemma is useful to explain and improve the handling of uncertainty in CBA. The ‘price-quality’ dilemma refers to the trade-off between the quality of welfare effect estimations and the costs of providing these estimations. Instruments to produce good quality effect estimates (including uncertainties) can be expensive both in monetary terms and time. We discuss the application of probabilistic traffic models as a promising example of how the ‘price-quality’ dilemma can be solved. The ‘communication’ dilemma refers to the observation that both a poor communication and a too prominent communication of uncertainties can cause problems for decision-makers. We argue that cognitive psychological theory provides useful perspectives to solve this dilemma, by providing a psychological framework which might help to explain why different types of people process CBA information differently. The results of this research may enhance first insights into the questions how the two dilemmas can be solved.
The Research of Low Earth Orbit Prediction of Satellite Based on Deep Neural Network

Satellite orbit prediction is a basic requirement in satellite applications. The current orbit prediction mainly depends on the dynamic model. Because of the limitations of the detection equipment and the satellite orbit data cannot be updated in time, which cause the dynamical model long-term orbit divergence to be serious. Using deep neural network as a method of orbit prediction which can predict the future data by training the satellite orbit data and grasp the implicit relationship between the data. The neural network model is optimized and the prediction data is compared with the actual data. The error of 20 days forecast is reduced to 2km, which improves the accuracy of neural network forecasting satellite orbit.
Is the residual vertical velocity a good proxy for stratosphere‐troposphere exchange of ozone?

Stratosphere‐troposphere exchange (STE) of ozone (O3) is key in the budget of tropospheric O3, in turn affecting climate forcing and global air quality. We compare three commonly used diagnostics meant to quantify cross‐tropopause O3 fluxes with a Chemistry‐Transport Model driven by two distinct European Centre forecast fields. Our reference case calculates accurate, geographically resolved net transport across an isosurface in artificial tracer e90 representing the tropopause. Hemispheric fluxes derived from the ozone mass budget of the lowermost stratosphere yield similar results. Use of the Brewer‐Dobson residual vertical velocity as a scaled proxy for ozone flux, however, fails to capture the interannual variability. Thus, the common notion that the strength of stratospheric overturning circulation is a good measure for global STE does not apply to O3. Climatic variability in the modeled O3 flux needs to be diagnosed directly rather than indirectly through the overturning circulation.
Solid-state recycling of aluminum alloy (AA-6061) chips via hot extrusion followed by equal channel angular pressing (ECAP)

Aluminum alloy (AA-6061) chips were recycled using hot extrusion followed by equal channel angular pressing (ECAP) process at room temperature. AA-6061chips were cold compacted into billets, then extruded into rods under extrusion ratio of 5.2 at different extrusion temperatures (ET). Finally, the rods were processed through ECAP die with inner angle Φ of 90°, and outer arc angle Ψ of 32.8°, which impose strain ɛ of 1 per each pass up to different number of passes. The effects of the ECAP number of passes and extrusion temperature on the microstructure evolution and mechanical properties were fully investigated. Furthermore, the microstructure and the mechanical properties of the ECAPed samples were compared with those of the extruded samples. Grain refinement were noted after the ECAP process. Moreover, the ECAPed samples revealed higher mechanical properties than those of the extruded samples. The extrusion temperature (ET) and the number of the ECAP passes have an obvious effect on both the microstructure and mechanical properties of the solid state recycled chips samples.
Trends in Extreme Indices and Seasonal Analysis of Precipitation and Temperature in the Northwest Region of Rio Grande do Sul, Brazil

Probably the most important environmental challenge of this century is to adapt to climate change and develop strategies to minimize its effects. This study aims to conduct an investigation to detect changes in temperature and precipitation in the northwest region of Rio Grande do Sul with the use of different general and regional circulation models (GCMs and RCMs, respectively). Seven distinct locations in the region were considered, for which there were ten different climate projections. Additionally, we investigated the frequency and intensity of extreme rainfall events using different extreme precipitation indices. These projections indicate an increase of mean annual temperature of almost 3°C till the end of the century, as well as an increase in annual precipitation. The seasonal analysis has demonstrated that the largest increases of temperature are projected for winter and early spring and do not coincide with the summer months of the main crop cultivation (soybean) in the region. Additionally, it is expected high amounts of rain during these same months. In general, trends in extreme precipitation indices were detected for the RCM projections in most of locations. It can also be concluded that it is possible that the spatial distribution of the impacts of climate change on agriculture will not be uniform.
Design and Investigation of Circularly Polarized RMPA with Chiral Metamaterial Cover

In this paper, a simple method for designing a circular polarized antenna using chiral metamaterial is presented. The antenna proposed in this paper consists of conventional linear polarized Rectangular Microstrip Patch Antenna (RMPA) and cover of bilayer twisted cross wire Chiral Metamaterial (CM). The placement of CM cover over the linearly polarized RMPA changes its polarization from linear to circular and the antenna produces a left handed circularly polarized wave at resonant frequency of 6.24GHz with axial ratio of 0.46 dB. Investigation of performance parameter of proposed antenna and parameters of unit cell of CM is also presented in the paper. Index Terms: Chiral Metamaterial (CM), Left hand Circularly Polarized(LCP), Right hand Circular Polarized(RCP), Rectangular Microstrip Patch antenna(RMPA),linear polarization(LP), circular polarization(CP)
Power and Trust as Factors Influencing Tax Compliance Behavior in Malaysia

This study adopted the slippery slope framework in the context of tax compliance in Malaysia tax. Thus, the research objective is to examine the effect of slippery slope factors on tax compliance. The slippery slope consists of power and trust. Power is distinguished between legitimate power and coercive power. Power and trust have different influence on tax compliance. Trust is perceived to influence voluntary tax compliance and power influences enforced tax compliance. Survey method is used to collect data involving individual taxpayers as respondents. The findings suggest that only trust has significant effect on tax compliance. Meanwhile, neither legitimate power nor coercive power could influence tax compliance.
Nemertesia tropica spec. nov. from Indonesian waters near Bali. Description of the new species and a review of the genus Nemertesia Lamouroux, 1812 (Leptothecata, Hydrozoa, Cnidaria)

A new species of the leptolid family Plumulariidae, Nemertesia tropica spec. nov. is described. The various species of Nemertesia are listed and their synonymy and characters discussed. Allocation in Nemertesia of some species previously described in Plumularia by Fraser (1938-1948) necessitated the introduction of two new names, viz. Nemertesia californica nom. nov. for Plumularia mutabilis Fraser, 1948 and Nemertesia mexicana nom. nov. for Plumularia reversa Fraser, 1938.
Modeling Collaboration for Crisis and Emergency Management

Managing crisis and emergency requires a deep knowledge of the related scenario. Simulation and analysis tools are considered as a promising mean to reach such understanding. Precondition to these types of tools is the availability of a graphical modeling language allowing domain experts to build formally grounded models. To reach this goal, in this paper, we propose the CEML language and the related meta-model to describe structural aspects of crisis and emergency scenarios. The meta-model consists of a set of modeling constructs, a set of domain relationships, and a set of modeling rules. Finally, we propose a preliminary set of collaboration design patterns to model interaction and communication exchange arising among emergency services providers and citizens to solve the crisis.
Comparative Image Encryption Method Analysis Using New Transformed - Mapped Technique

Several traditional encryption schemes have been analysed and based on the literature survey, it has been found that chaotic sequences are very much useful to create randomness. In this paper, a new encryption scheme has been proposed with two phases. In the first phase the input image is transformed using a new transformation technique whereas in the second phase . Chirikov Standard Map is used for pixel shuffling and modified Logistic Map is used for diffusion. Chirikov standard map , decor relate the strong relationship among adjacent pixels hence employed to shuffle the pixel positions of the plain image. The modified logistic map is used for generating the random sequence which is completed the purpose of changing pixel values. Various images and standard lena image is used to demonstrate the validity of the proposed algorithm. The results of experiments show that the proposed algorithm for image cryptosystems provides a no correlation between the original image and cipher image. The scheme is key sensitive and shows impressive resistance against brute force attack and statistical attack.
Real Time Based Bare Hand Gesture Recognition

Gestures are a powerful means of communication among humans. Gesture recognition is the process of recognizing and interpreting a stream continuous sequential gesture from the given set of input data. Primary Concern in hand gesture recognition is that it could be possible for users to communicate with computerized equipment without need for external control devices. Another advantage is that the user not only can communicate from a distance, but need have no physical contact with the computer. According to survey almost 40% of all gestures are done with one hand and multiple hands at 20% and the rest are distributed between the other body parts. In this method bare hand gestures are recognizing using dynamic vision sensor (DVS) camera. DVS is different from conventional cameras. DVS cameras only respond to pixels with temporal luminance differences, which can greatly reduce the computational cost of comparing consecutive frames to track moving object. This method attempts to classify three different hand gestures made by a user which is called as Rock,Paper,Scissors. This is novel method detect the point where the user delivers a throw, to extract hand regions and to extract useful features for classification.
Supercritical CO 2 Brayton Power Cycles for DEMO Fusion Reactor Based on Dual Coolant Lithium Lead Blanket

Fusion energy is one of the most promising solutions to the world’s energy supply. This paper presents an exploratory analysis of the suitability of supercritical CO2 Brayton power cycles as alternative energy conversion systems for a future fusion reactor based on a dual coolant lithium-lead (DCLL) blanket, as prescribed by EUROfusion. The main issue dealt is the optimization of the integration of the different thermal sources with the power cycle (up to four at different power and temperature levels) in order to achieve the highest electricity production. The analysis includes the assessment of the pumping consumption both in the source loops as in the sink one. Other considerations, as control issues and integration of thermal energy storage systems to face the pulsed operation, have been also taken into account. An exergy analysis has been performed in order to understand the behavior of each layout. Up to ten scenarios have been analyzed, taking into account the heat power released from some thermal sources directly to the sink and assessing different locations for thermal sources heat exchangers. Neglecting the worst four scenarios, it is observed less than 2% of variation among the other six ones. One of the best six scenarios clearly stands out over the others due to the location of the thermal sources in a unique island, being this scenario compatible with the control criteria. In this proposal 34.6% of electric efficiency (before the self-consumptions of the reactor but including pumping consumptions and generator efficiency) is achieved.
Application of data mining technology in Internet financial risk analysis

In this paper, we study the Internet financial risk based on the data mining technology. In order to solve problems concerning credit generation and evolution and risk control in Internet finance, we make an empirical study of factors affecting credit in Internet finance and investigates the evolution of the Internet finance credit embedded with data mining. On this basis, the alien invasion into Internet finance is analysed, and complex networks and other related theories and real evidence are used to analyse above-mentioned problems. Moreover, effective evaluations are made of credit risks to circumvent or weaken credit risks and impose targeted supervisions on credit risks. The experiment result shows the data mining method is effective to the analysis of Internet financial risk.
Phenomenographic pedagogy and a revised Approaches to teaching inventory

The Approaches to teaching inventory (ATI) is now being widely used as an instrument for formally monitoring approaches to teaching. A lesser‐known use is as a stimulant for discussion among groups of teachers to raise awareness of the variation in qualitatively different ways of approaching teaching. The phenomenographic origins of the ATI are consistent with these uses in academic development, both formative and summative. Following this increase in use, the validity and utility of the ATI were reviewed in 2003 using data from over 1600 teachers. We now summarize the outcomes of this review and report new results of the tests conducted on an expanded ATI with a further 318 academics. While the revised ATI maintains a focus on the qualitative variation in two key dimensions of teaching (a conceptual change/student‐focused approach and an information transfer/teacher‐focused approach), the number of items in those scales has now been increased. This version enhances those features of the original instrument that helped make it a useful trigger tool in ‘phenomenographic pedagogic’ discussion. Both phenomenographic pedagogy and the development of the ATI are discussed in this paper.