Miracle-dz/UniFAR-FTUs huggingface dataset:
Significance of graded doses of aqueous seed extract of Moringa oleifera (L) on live body weight, gonadal, extragonadal dimensions and sperm reserves of Yankasa rams

The aim of the study was to investigate the effects of Moringa oleifera aqueous seed extract on live body weight, gonadal and extragonadal dimensions and sperm reserves of Yankasa rams. Twenty five apparently healthy Yankasa rams aged 1-2 years and weighing 19.0 ± 2.1 Kg were used for the study. The rams were randomly selected into five groups: A, B, C, D and E with five rams in each group as treatment and control groups respectively. Groups A - D were given oral dose of Moringa oleifera aqueous seed extract at a dose rate of 1000, 2000, 3000, 4000 (mg/kg), respectively while group E was given 10 ml/kg water orally, daily for five months. Live body weight, gonadal and extragonadal reserves were determined according to standard techniques. The results showed a significant increase in live body weight in the months of April to June among rams treated with different doses of Moringa oleifera aqueous seed extract compared with the control group. The control group showed no significant differences in the body weight, gonadal and extragonadal dimensions and sperm reserves. In conclusion, the treatment of Yankasa rams with Moringa oleifera aqueous seed extract increased live body weight, but had no significant effects on gonadal and extragonadal dimensions and sperm reserves in Yankasa rams. Therefore, it is recommended that M. oleifera aqueous seed extract can be used at doses of 2000mg/kg to 3000mg/kg in Yankasa rams for optimum gain in live body weight.
Sistema de monitoramento de perdas visíveis de cana-de-açúcar em colhedora de cana picada

In the last few years the sugar-cane mechanical harvested area has increased, especially in regions with appropriated slop. The use of this technology brings some inconveniences, such as, the increase in the percentage of extraneous matter, which causes the reduction of technological quality of the raw material, and losses in the field. Extraneous matter (trash) is composed of tops and leaves in major percentage, plus soil and roots, and eventually some metal parts. In the green cane harvest system the percentage of extraneous matter has a tendency to increase due to the great amount of vegetal matter to be processed. The increase in the blower fan speed to reduce the amount of extraneous matter can lead to an unacceptable economic level of raw material losses. The main objective of this work was, using a cane loss monitor, to evaluate and quantify the amount of visible losses of sugar cane through the primary extractor at two different fan speeds. Afterwards these losses were related to the harvester cleaning efficiency. The piezoelectric transducer shows a reasonable sensibility. The results show that the cleaning efficiency in the primary extractor (85% mean), the cane losses (between 5.68% and 2.15%) and fan speed are interrelated. The total losses and specially splinters (between 3.19% and 0.91%), showed a significant difference among the treatments.
Human behaviour in fire: The development and maturity of a scholarly study area

This article presents a selected literature review of the critical studies with an analysis of the development of the study area concerned with the behaviour of the occupants during a fire occurrence. Although, the primary emphasis is on the developments in this study area within the United States from the early 1900s until 1998, the literature cited is of world wide origin. The influence of the performance code concept on tbe human behaviour in fire research with the resulting emphasis on the evacuation models is examined. Cautions are expressed relative to the design, validation and application of the evacuation models. Concerns are expressed relative to the application of the evacuation models to the simulation of the documented behaviour of occupants in fire incidents.
Dual fuel operation of ethyl ester of Jatropha curcus with ethanol by fumigation

The main objective of this investigation was to study the dual fuel operation of ethyl esters of Jatropha curcus and ethanol by fumigation experimentally. The ethyl ester was prepared from the non-edible J. curcus oil using the transesterification process. The experimental study was carried out in a single cylinder direct injection diesel engine. The inlet air was heated to 75° C by a heating coil heated at a constant rate by using a closed loop control of the loading rheostat and a cut-out relay. In the experimental set-up, ethanol was injected into the hot inlet air very near the intake manifold. The results show an appreciable reduction in smoke and sulphur dioxide (SO2) emissions, a slight increase in hydrocarbon and carbon monoxide emissions, and a slight reduction in NOx emissions at part loads, with an appreciable increase in the performance compared with neat diesel and neat ethyl esters.
Factors Associated with Stunted Children

Stunting is the high-priority problem of child malnutrition in Indonesia. The purpose of this study was to determine the relationship between maternal posture and exclusive breastfeeding and stunting. This research will be conducted with a quantitative approach. This study was designed with a cross-sectional study design. The population is parents of stunted children aged 3-5 years in Demak district, Central Java. The sampling technique used in this study was purposive sampling and the sample was 36 parents of stunted children aged 3-5 years in Demak district, Central Java. The research instrument was a questionnaire and test. Data analysis used the chi-square test to measure the association between maternal posture and exclusive breastfeeding and stunting. The results showed there was no relationship between stunting and maternal education (OR.0,7,95% CI, 0,132-4,022;P=1.000), level of income (OR.0,7;95% CI, 0,132-4,022;P=1.000), maternal posture (OR, 1.0;95% CI, 0,320-3,123;P=1.000), and exclusive breastfeeding (OR, 1,5;95%CI,0,469-4,797;P=0,660).
Using object-based image analysis to detect laughing gull nests

ABSTRACT Remote sensing has long been used to study wildlife; however, manual methods of detecting wildlife in aerial imagery are often time-consuming and prone to human error, and newer computer vision techniques have not yet been extensively applied to wildlife surveys. We used the object-based image analysis (OBIA) software eCognition to detect laughing gull (Leucophaeus atricilla) nests in Jamaica Bay as part of an ongoing monitoring effort at the John F. Kennedy International Airport. Our technique uses a combination of high resolution 4-band aerial imagery captured via manned aircraft with a multispectral UltraCam Falcon M2 camera, LiDAR point cloud data, and land cover data derived from a bathymetric LiDAR point cloud to classify and extract laughing gull nests. Our ruleset uses the site (topographic position of nest objects), tone (spectral characteristic of nest objects), shape, size, and association (nearby objects commonly found with the objects of interest that help identify them) elements of image interpretation, as well as NDVI and a sublevel object examination to classify and extract nests. The ruleset achieves a producer’s accuracy of 98% as well as a user’s accuracy of 65% and a kappa of 0.696, indicating that it extracts a majority of the nests in the imagery while reducing errors of commission to only 35% of the final results. The remaining errors of commission are difficult for the software to differentiate without also impacting the number of nests successfully extracted and are best addressed by a manual verification of output results as part of a semi-automated workflow in which the OBIA is used to complete the initial search of the imagery and the results are then systematically verified by the user to remove errors. This eliminates the need to manually search entire sets of imagery for nests, resulting in a much more efficient and less error prone methodology than previous unassisted image interpretation techniques. Because of the extensibility of OBIA software and the increasing availability of imagery due to small unmanned aircraft systems (sUAS), our methodology and its benefits have great potential for adaptation to other species surveyed using aerial imagery to enhance wildlife population monitoring.
EVALUATING CUSTOMERS’ CONTINUANCE INTENTION FOR USING MOBILE PAYMENT: CONSUMPTION VALUE THEORY PERSPECTIVE

Use of mobile payment applications (m-payment) has been growing over the past decade. However, much of the existing studies generally: a) focus on participants chosen from a single cultural background, b) rely on using the traditional attitude-oriented theories (e.g., TRA, TAM), and c) are concerned with use attitudes and/or intention to use. Hence, studies about the effect of national culture (differing among various nationalities) on m-payment are scarce. In this paper, using value orientations theoretical perspective we report on a study that focuses on understanding the key factors that could possibly affect customers’ continuance intention for using m-payment from a cross-nationality perspective. A research model is proposed to investigate whether four specific value factors, as conceptualized in the theory of consumption value, affect m-payment continuance intention as well as whether the influence of such factors are perceived differently among two different nationalities (i.e., India, China). Our findings reveal that the m-payment continuance intention is largely indirectly explained by emotional value. In addition, the effects of social value differ between Indian and Chinese students. The research findings offer insights to m-payment providers in terms of the culture-based m-payment application strategy related to designing content and interface, so as to properly guide the momentum.
Transitional Issues of Induction into Design Education for International Undergraduate Students: A Case Study Analysis of Architecture

Abstract The overarching aim of this paper is to present and discuss a collaborative undertaking between the School of Architecture and Building and the Academic Skills Unit at Deakin University, Australia in a programme called The Integrated Support Programme for Architecture. It does this in the following ways. It provides a justification for the setting up of an integrated programme for international architecture students. It describes the programme that was set up and outlines the reasons for collaboration between an academic School and an Academic Skills support services unit to prepare students both nationally and internationally as graduates of architecture. It then reports on a study undertaken to evaluate the programme in terms of student response and perception. Following this, it highlights directions for effective and strategic transition of past and present learning for international students. Using a case study analysis, the thrust of this paper is to advance knowledge and understanding of the pertinent issues related to international students either commencing or articulating into the professional course of architecture. It is envisaged that in this discussion matters may be raised for a strategic and effective transition of generic and internationalised learning for international students.
Steady-state visual evoked potentials are unchanged following physical and cognitive exertion paradigms

Background There is a need for objective biomarkers of sports-related concussion that are unaffected by physical and cognitive exertion. Electroencephalography-based biomarkers such as steady-state visually evoked potentials (SSVEPs) have been proposed as one such biomarker. The aim of this study was to investigate the effects of cognitive and physical exertion on SSVEP signal-to-noise ratio (SNR). Methods This study involved two experiments. The first experiment was performed in a controlled laboratory environment and involved a treadmill run designed to induce physical fatigue and a Stroop task designed to induce mental fatigue, completed in a randomized order on two separate visits. SSVEPs were evoked using a 15-Hz strobe using a Nurochek headset before and after each task. Changes in the 15-Hz SSVEP SNR and self-reported fatigue (visual analog scales) were assessed. In the second experiment, SSVEP SNR was measured before and after real-world boxing matches. Paired t-tests compared pre- and post-task SSVEP SNR and fatigue scores. Results Eighteen participants were recruited for experiment 1. Following the treadmill run, participants reported higher physical fatigue, mental fatigue, and overall fatigue (p ≤ 0.005; d ≥ 0.90). Following the Stroop task, participants reported higher mental fatigue and overall fatigue (p < 0.001; d ≥ 1.16), but not physical fatigue. SSVEP SNR scores were unchanged following either the Stroop task (p = 0.059) or the treadmill task (p = 0.590). Seven participants were recruited for experiment 2. SSVEP SNR scores were unchanged following the boxing matches (p = 0.967). Conclusions The results of both experiments demonstrate that SSVEP SNR scores were not different following the treadmill run, Stroop task or amateur boxing match. These findings provide preliminary evidence that SSVEP fidelity may not be significantly affected by physical and cognitive exertion paradigms.
Yield design of dry‐stone masonry retaining structures—Comparisons with analytical, numerical, and experimental data

Over the past few years, there has been a steady increase in the interest in dry‐stone walling not only to preserve existing constructions but also to build new ones. Yet, dry masonry's expansion is slowed down by the lack of scientific knowledge to assess its reliability. This study aims at contributing to the construction of this scientific frame using a simplified model based on yield design and homogenization, which can be directly exploited for engineering purposes. A new analytical expression of the ultimate load is thus established. Then, the validity of the method is assessed by comparisons with limit equilibrium analysis, distinct element method, and field trials. Finally, possible improvements of the model are discussed. Copyright © 2008 John Wiley & Sons, Ltd.
Numerical Simulation of Glider Crash Against a Non-Deformable Barrier

This study, describing computer simulation of a glider crash against a nondeformable ground barrier, is a part of a larger glider crash modeling project. The studies were intended to develop a numerical model of the pilot – glider – environment system, whereby the dynamics of the human body and the composite cockpit structure during a crash would make it possible to analyze flight accidents with focus on the pilot’s safety. Notwithstanding that accidents involving glider crash against a rigid barrier (a wall, for example) are not common, establishing a simulation model for such event may prove quite useful considering subsequent research projects. First, it is much easier to observe the process of composite cockpit structure destruction if the crash is against a rigid barrier. Furthermore, the use of a non-deformable barrier allows one to avoid the errors that are associated with the modeling of a deformable substrate, which in most cases in quite problematic. Crash test simulation, carried out using a MAYMO package, involved a glider crash against a wall positioned perpendicularly to the object moving at a speed of 77 km/h. Computations allowed for determination of time intervals of the signals that are required to assess the behavior of the cockpit and pilot’s body – accelerations and displacements in selected points of the glider’s structure and loads applied to the pilot’s body: head and chest accelerations, forces at femur, lumbar spine and safety belts. Computational results were compared with the results of a previous experimental test that had been designed to verify the numerical model. The glider’s cockpit was completely destroyed in the crash and the loads transferred to the pilot’s body were very substantial – way over the permitted levels. Since modeling results are fairly consistent with the experimental test, the numerical model can be used for simulation of plane crashes in the future.
Computation of Aerial Towed Cable Aerodynamic Performances with Large Eddy Simulation

The dynamics characteristic of aerial towed cable has been investigated with many models. Because of the coupling between the components of the towed cable system, the dynamics of the towed cable is complex and nonlinear. Though the aerodynamic performances of cable is studied for a long time, the results are quiet different with researchers. The ideal method to obtain the aerodynamic forces is to simulate the flow structure around the towed cable.The purposes of this paper are to simulate the flow field of the towed cable with the different inclined angles by using Large Eddy Simulation (LES) with sub-grid scale model of Smagorinsky-Lily and to study the variation of the aerodynamic forces and its influences on flow structure. The results show that the LES can predict the flow structure of the cable reasonably.
The influence of benzyladenine on the flowering of Liatris spicata L. 'Alba' cultivated for cut flowers in an unheated plastic tunnel and in the field

The study focused on the influence of benzyladenine (BA) on the flowering of Liatris spicata L. 'Alba' cultivated for two years in an unheated plastic tunnel and in the field. Benzyladenine at a concentration of 0, 100, 200, 400 mg×dm -3 was applied on the leaf twice during both years of the experiment. It was noted that cultivation of Liatris spicata L. 'Alba' in an unheated plastic tunnel leads to the growth of longer inflorescence stems with a bigger fresh weight and a larger number of primary shoots. However, in comparison with control plants, it decreases the yield of inflorescence stems in the first and second year of the plants' flowering. It is beneficial to apply benzyladenine at a concentration of 400 mg×dm -3 on the leaves of Liatris spicata L. 'Alba' cultivated in an unheated plastic tunnel, because this treatment increases the number and fresh weight of inflorescence stems as well as the number of primary shoots in the first and second year of the plants' flowering. It is also justified to apply benzyladenine at a concentration of 400 mg×dm -3 on Liatris spicata L. 'Alba' cultivated in the field, as it leads to a greater number and fresh weight of inflorescence stems in the first and second year of flowering.
Development of a dual-axis thermal convective gas gyroscope

This paper presents the development of a dual-axis gas gyroscope, whose working principle is based on the convective heat transfer and thermoresistive effect of lightly doped silicon. The working principle and the cross-sensitivity of the gas gyroscope are also analyzed. Experiments were performed to confirm the simulation results and good agreement has been achieved. The measured sensitivities for the X-axis and Y-axis were 0.107 mV deg−1 s−1 and 0.102 mV deg−1 s−1, respectively. Compared with a gyroscope of the same configuration but using tungsten as a sensing element, this gyroscope has 42 times greater sensitivity and one quarter the power consumption. These advantageous characteristics are inherited from the high TCR and high resistance of lightly doped p-type silicon. Nonlinearity and cross-sensitivity were measured to be smaller than 0.07% FS and 0.5% FS, respectively. The effect of acceleration on the sensitivity is 0.02 (deg s−1)/g and the measurement resolution based on sensitivity and noise analyses is 0.05 deg s−1. The relations between sensor performance, power consumption and ambient temperature were also realized.
Impact of Ship Motions on Maritime Radio Links

The improvement of maritime radio links often requires an increase of emitted power or receiver sensitivity. Another way is to replace the poor antenna gains of traditional surface ship whips by novel antenna structures with directive properties. However, ship motions, especially when launches are involved, may affect the radio link quality. Therefore, a tool for modelling the impact of ship motions on such antenna structures was developed. It helps the specification of antenna radiating parameters and improves the radio link performance evaluation. This tool includes a deterministic two-ray model for radio-wave propagation over the sea surface. The geometrical 3D engine for ship motions has the advantage to be compatible with any propagation model and antenna structure.
Effect of two dehydration processes on extracts from Opuntia atropes and characterization of polyphenolic compounds by ultra high-resolution liquid chromatograph coupled with mass spectrometry

ABSTRACT The objective of this research was to evaluate the polyphenolic compounds, the antioxidant activity, and the individual identification of the different types of phenolic compounds in dried extracts of Opuntia atropes. O. atropes extract was dehydrated in a drying oven at 50°C/24 h and by nano-spray drying at 105°C. Drying by nano-spray did not affect the content of phenolic compounds or the antioxidant activity of the O. atropes extract, presenting values of 11.80 ± 0.61 mg of gallic acid equivalent/g of phenolic acids, 22.26 ± 1.02 mg quercetin equivalent/g of flavonoids and inhibition percentage of the radical DPPH• (2,2-. diphenil-1-picrilhidrazil) and ABTS•+ (2,2ʹAzinobis(3-ethylbenzothiazoline-6 sulfonic acid)) of 17.92 ± 0.31 and 54.08 ± 0.48, respectively. In the powdered extracts of O. atropes, glycosides of kaempferol and isorhamnetin were mainly identified by ultra high-performance liquid chromatography coupled to mass spectrometry. Mediorresinol lignan was identified for the first time in this Opuntia species.
Cooling System of Outer Rotor SPMSM for a Two-Seater All-Electric Aircraft Based on Heat Pipe Technology

Due to the limitation of working situation, the driving motor for all-electric aircraft (AEA) has higher requirement on the weight and cooling performance of motor, so the thermal problem of driving motor is more prominent. Therefore, a high-performance cooling system based on heat pipe technology is proposed. The cooling system takes full advantage of high thermal conductivity of heat pipe. One end of heat pipe is inserted into stator yoke, and the other end is outside the motor, which is connected to aluminum radiator. Firstly, an experimental test is built to test the cooling performance of proposed cooling system. Secondly, based on 3D transient temperature field simulation, the influences for axial size of radiator and thermal conductivity of heat pipe on motor temperature rise are analyzed, which is a great significance to solve the overheating problem for driving motor. Finally, a 22-poles and 24-slots outer rotor surface-mounted permanent magnet synchronous motor (SPMSM) for AEA is designed and manufactured. Temperature rise distribution of prototype under different flight conditions is tested, and the effectiveness of proposed cooling system is verified. The power density of driving motor is further improved.