Miracle-dz/UniFAR-FTUs huggingface dataset:
On the vocal repertoire of the monkey frog Phyllomedusa venusta: distress call and the presumed non-existing advertisement call

ABSTRACT The anuran advertisement call has been widely used in taxonomic and evolutionary studies due to its essential role in species-specific recognition. For a long time, it has been presumed that P. venusta did not emit mating calls. Here, we observed the entire vocal activity period of P. venusta over the night and recorded male calls and a female distress call. We recognized and described a single male call type, identified as the advertisement call. This call has an extremely low timbre, and it is composed of a single or a sequence of pulsed notes. The multi-noted calls were usually emitted in intrasexual agonistic contexts. Although both call duration and note number have a high coefficient of variation values, they are linearly correlated, so they should be acting as a single independent variable in the P. venusta calls. As expected, the distress call is longer and with a higher timbre than the advertisement call. Interspecific comparisons were made based on the ratio between advertisement call dominant frequency (DF) and body size. This ratio is similar to those of the species of the P. tarsius group.
Fabrication and Characteristics of Silicon Bridge Magnetic Sensor Based on Nano-Polysilicon TFTs

A silicon bridge magnetic sensor based on nano-polysilicon TFTs is presented in this paper.It adopted four nano-polysilicon TFTs on the center of every squared silicon membrane edge to forma Wheatstone bridge, and then its squared silicon membrane center was sticked by ferromagnetic material.The sensor simulation was realized by adopting ANSYS software. The simulation results showthat based on the piezoresistive effect, the measurement to the external magnetic field can be achieved.According to the simulation results, we designed and fabricated the silicon bridge magnetic sensor byCMOS technology and MEMS technology. The experimental results show that when supply voltageof the sensor is 5.0 V, its full range (4.0 kGs) output voltage is 10.97 mV, and magnetic sensitivity is1.44 mV/kGs.
Assessing the factor structure of the Spreitzer’s Psychological Empowerment Scale among Malaysian teachers

Psychological empowerment is one of the compelling factors that drive employees to be more initiative and innovative and Spreitzer's Psychological Empowerment Scale (PES) has been widely used to measure it. Nevertheless, PES stability has not been determined in the Malaysian context, limiting its meaning and interpretation. Hence, this study examines the factor structure of the scale among Malaysian teachers. The scale structure was investigated using confirmatory factor analysis (CFA) simultaneously with the convergent validity, discriminant validity, and reliability assessment. CFA results of factor loadings and average variance extracted revealed significant evidence of convergent validity while the Fornell-Larcker procedure produced an outcome that supported high discriminant validity of the PES. The reasonable values of the goodness-of-fit indices show that overall, the data fit well. Also, based on the values of the composite reliability and Cronbach’s alpha, measurement using the scale demonstrated high internal consistency. Thus, the findings confirmed the stability of the factor structure and therefore provided evidence of generalizability of the scale into the Malaysian context.
Effects of model updating on the estimation of stochastic seismic response of a concrete-filled steel tubular arch bridge

The objectives of this paper are to integrate the structural health monitoring (SHM) technique with the structural seismic analysis, and to make the SHM technique serve, benefit and promote the structural seismic analysis integrally. Therefore, considering a concrete-filled steel tubular arch bridge structure, the SHM technique is used to calibrate the finite element (FE) model through the model-updating scheme to minimise the structural response differences caused by FE model errors. Effects of model updating on structural seismic responses are investigated using the stochastic vibration analysis approach. It is observed that effects of model updating are significant on structural seismic responses, and these effects may become more evident in structural nonlinear dynamic analysis. Hence, it is of prime importance to calibrate the FE models through the SHM technique for seismic evaluations of some operational critical structures.
FOLDING CONCEPT FOR FLEXIBLE SURFACE REFLECTORS

Following the recent development of graphite antennas with a flexible reflective surface, a new folding concept for this type of reflectors is presented. The key idea is to cut the surface into 6-8 petals along lines whose shape is determined by an optimisation approach. In the packaged configuration, the petals fit together in a cylindrical manner about a central hub. During deployment, they open out and unwrap, driven by the energy stored during folding. Analytical expressions are derived for the stresses induced by inextensional elastic folding of a doubly-curved shell. It is shown that the assumption of inextensional behaviour is an acceptable approximation for shells cut into petals that are bent, without twisting. A simple, approximate method for analysing the packaging scheme is introduced, and its predictions are used as part of the optimisation scheme. A finiteelement analysis and experimental verification of the optimised folding scheme for a dish with diameter of 0.9 m show that these predictions are remarkably accurate, and conservative. A packing ratio of 3 is achieved for this dish.
Fast low-power full-adders based on bridge style minority function and multiplexer for nanoscale

Full-adders are essential parts of digital circuits whereby many arithmetic circuits can be implemented by applying these cells. Therefore speed and power consumption of full-adders affect the performance of digital circuits, FA cell performs a predominant arithmetic operation in them. We utilise carbon nanotube field effect transistors for implementing our proposed designs due to their unique mechanical and electrical properties such as lower delay, lower power consumption, very dense and lower current off. Extensive simulation results using HSpice are reported to demonstrate the acquired significant improvement in performance of FA circuit design in comparison with the state-of-the-art work.
Design and Development of Test Rig to Estimate Performance of Spur Gears

Online condition monitoring of mechanical systems is gaining importance due to easy detection of root cause of failures. Vibration measurement is a vital tool of online condition monitoring. The present paper describes the experimental observations on pair of spur gears obtained using accelerometer. A test rig has been designed and developed to obtain realistic (in-situ) conditions for spur gear. The developed test setup can be used to vary the speed from 600 rpm to 24,000 rpm. Accelerometer is used to measure the vibration of the system and the acquired signals are analyzed to predict the system performance. To confirm the conclusions from the vibration results, inspection using optical microscope on the gear surface were carried out before and after performing experiments.
Re-Examining the Effect of Job Sprawl on the Black-White Housing Consumption Gap: Evidence Following the Great Recession

This article examines the association between employment decentralization and the Black-White housing consumption gap since the Great Recession. This research investigates the extent to which post-recession spatial patterns of employment facilitate, or impede, the recovery for Black households. The model estimates a statistically significant correlation between job sprawl and the Black-White housing gap, although the direction depends upon the level of sprawl and measure of housing consumption. For example, while job sprawl is associated with a reduction in the Black-White unit size gap, that association only holds in high-sprawl metropolitan areas. In one area of improvement since the recession, job sprawl is correlated with a reduction in the ownership gap in a majority of metropolitan areas. However, job sprawl is also correlated with an intensification of the suburban ownership gap in the vast majority of metropolitan areas in the study. This study counters conventional arguments that unplanned sprawl may reduce intergroup inequality, and that metropolitan land use regulations may therefore exacerbate inequality. The results of this research demonstrate that inequality persists in light of competitive market forces that generate sprawl. Metropolitan land use policies that mitigate sprawl may therefore be legitimate tools for mitigating intergroup inequality in metropolitan housing markets.
Wideband mobile antenna design based on artificial neural network models

A compact wideband planar monopole antenna is designed and optimized based on artificial neural network (ANN) models. The antenna is suitable for DCS, PCS, DECT, PHS, IMT‐2000, UMTS, and WLAN in mobile communication. The design time decreases dramatically due to using the ANN models. © 2003 Wiley Periodicals, Inc. Int J RF and Microwave CAE 13: 316–320, 2003.
Power of engineering: changing the perceptions of year 9 and 10 female school students towards an engineering career

BACKGROUND The engineering profession in Australia has failed to attract young women for the last decade or so despite all the effort that have gone into promoting engineering as a preferred career choice for girls. It is a missed opportunity for the profession to flourish as a heterogeneous team. Many traditional initiatives and programs have failed to make much impact or at best incremental improvement into attracting and retaining more women in the profession. The reasons why girls and young women in most parts of the world show little interest in engineering haven't changed, despite all the efforts to address them, the issue proposed here in this paper is with the perceptions of engineering in the community and the confidence to pursue it. This gender imbalance is detrimental for the engineering profession, and hence an action-based intervention strategy was devised by the Women in Engineering Qld Chapter of Engineers Australia in 2012 to change the perceptions of school girls by redesigning the engagement strategy and key messages. As a result, the “Power of Engineering Inc” (PoE) was established as a not-for-profit organisation, and is a collaborative effort between government, schools, universities, and industry. This paper examines a case study in changing the perceptions of year 9 and 10 school girls towards an engineering career. PURPOSE To evaluate and determine the effectiveness of an intervention in changing the perceptions of year 9 and 10 school girls about engineering career options, but specifically, “What were their perceptions of engineering before today and have those perceptions changed? ” DESIGN/METHOD The inaugural Power of Engineering (PoE) event was held on International Women’s Day, Thursday 8 March 2012 and was attended by 131 high school female students (year 9 and 10) and their teachers. The key message of the day was “engineering gives you the power to change the world”. A questionnaire was conducted with the participating high school female students, collecting both quantitative and qualitative data. The survey instrument has not been validated. RESULTS The key to the success of the event was as a result of collaboration between all participants involved and the connection created between government, schools, universities and industry. Of the returned surveys (109 of 131), 91% of girls would now consider a career in engineering and 57% who had not considered engineering before the day would now consider a career in engineering. Data collected found significant numbers of negative and varying perceptions about engineering careers prior to the intervention. CONCLUSIONS
Eficiência do modelo Ceres-Maize na simulação do desempenho de híbridos de milho

The CERES-Maize model was developed for simulating the development and performance of corn and has been used as a tool for planning and decision making by farmers in several countries. The objective of this study was to evaluate the efficiency of the CERES-Maize model in the simulation of agronomic characteristics of corn hybrids on tropical conditions. A field experiment was conducted with five hybrids (AG7000, AG8060, DKB199, GNZ2004 and P30F90) and three sowing times (24/11/2006, 19/12/2006 and 13/01/2007) in an experimental area of the Agriculture Department of the Federal University of Lavras, Lavras, Minas Gerais State, Brazil. The treatments were arranged in a randomized block design with three replicates. Data were collected on flowering dates and physiological maturity, grain number per square meter, grain mass and grain yields. These data were compared with the data simulated by the model using the mean square error (RSME), percentage deviation (PD) and agreement index (d). The results showed that corn sown in January, independent of the hybrid, had lower grain number per square meter, grain mass and grain yield than sowings in November and December. CERES-Maize proved very efficient to simulate the flowering and physiological maturity dates as the RSME values were below 10%, the 'd'values were above 0.80, and the highest PD value was -11%. For grain number per square meter, grain mass and grain yield, the simulation was considered good, with RSME below 20%. These variables had the highest PD values, mainly in the last sowing date, indicating that environmental conditions unfavorable to the good performance of the crop affect efficiency of simulation. The Ceres-Maize model was proven a good tool for simulation of agronomic characteristics in corn hybrids.
Modulation characteristic of waveguide-type optical frequency comb generator

We report the modulation characteristics of a waveguide-type optical frequency comb generator (WG-OFCG) with the advantages of compactness, high modulation index and low driving power. The characteristics of the optical frequency comb (OFC) generated when the modulation index exceeds 2/spl pi/ are discussed. The power of the modulation sidebands was measured by the optical heterodyne method with an external-cavity laser as a local oscillator. The dependence of the modulation index of the WG-OFCG on the modulation frequency up to 40 GHz was measured. The generation span of the OFC at the modulation frequency detuned from an integer multiple of the free spectral range (FSR) is discussed.
Effect of Genotype by Environment Interaction (GEI), Correlation, and GGE Biplot analysis for high concentration of grain Iron and Zinc biofortified lentils and their agronomic traits in multi-environment domains of Nepal

— Lentil (Lens culinaris Medik. culinaris ) is a cool season food legume contains the high quality of proteins and minerals. Selecting genotypes for high mean yield and yield stability has been a challenge for lentil breeders. The complexities of genotype × environment interaction (GEI) make selection difficult to identify the best performing and most stable genotypes. Therefore, this study was carried out to apply a GGE biplot and AMMI analysis model to evaluate the magnitude of the effect of GE interaction on grain yield of 25 lentil accessions at three environments during the year of 2016 and 2017 seasons in alpha-lattice design (5x5) with three locations and to evaluate relationships between test environments for identification of favorable genotypes for lentil production areas. Combined pooled mean analysis of variance for grain yield tested at three environments over the two subsequent years 2016 and 2017 showed that highly significant differences in genotypes, environment and G x E interaction effect indicating the possibility of selection for stable accessions. The stability of the assessed genotypes using some stability statistics derived from three types of statistical concepts (variance and regression analyses), AMMI (additive main effect and multiplicative interaction) analysis and GGE biplot (genotype main effects and genotype-by-environment interaction effects) models were applied to obtain good understanding of the interrelationship and overlapping among the used stability statistics. Research results showed that lentil accession WBL-77 (1451 kg ha-1) , RL-79(1446 kg ha-1) and PL-4(1429 kg ha-1) were the best performer and well adopted across the environments and over the years. AMMI analysis of variance for lentil grain yield (tha -1 ) of lentil accessions tested at three environments over the years showed that 80.71% of the total sum of squares was attributed to environmental effects, only 8.38 % to genotypic effects and 10.90% to genotype × environment interaction effects. The partitioning of GGE sum of squares through the GGE biplot analysis showed that PC1and PC2 accounted 74.75%, and 25.24% of GGE sum of squares respectively over the years. Accessions ILL8006, RL-6, Shital, ILL3490 and simal were more close to the center point and indicated that stable across the environments. In another words, the genotypes which have low stability value (ASV) is said to be stable and the breeder chose the stable genotypes along with grain yield above the mean grand yield. In this experiment accessions RL-6(G-2) ranked 1st stability (ASV-0.53) followed by Simal (ASV-2.05), ILL-3490 (ASV-2.42) and Shital (ASV-2.72) and suitable for all environment.
Visual Surveillance for Airport Monitoring Applications

This paper presents the Object Tracking compo- nent of a complete multi-camera surveillance system that was developed as part of the AVITRACK project. The aim of the project is to automatically recognise activities around a parked aircraft in an airport apron area to improve the ef- ciency, safety and security of the servicing operation. The overall Object Tracking component comprises three main modules: Motion detection, frame to frame object tracking and object categorisation.
Lifetime prediction and sizing of lead-acid batteries for microgeneration storage applications

Existing models of microgeneration systems with integrated lead-acid battery storage are combined with a battery lifetime algorithm to evaluate and predict suitable sized lead-acid battery storage for onsite energy capture. Three onsite generation portfolios are considered: rooftop photovoltaic (2.5 kW), micro-wind turbine (1.5 kW) and micro combined heat and power (1 kW). With no embedded energy storage, the dwelling exports energy when the microgeneration system generates excess power leading to a high level of generated export throughout the year. The impact that the size of installed battery has on the proportion of the generated export that is reserved onsite, along with the annual energy discharged per year by the energy store is assessed. In addition, the lifetime algorithm is utilised to predict corresponding lifetimes for the different scenarios of onsite generation and storage size, with design tables developed for expected cost and weight of batteries given a predicted generated export and lifetime specification. The results can be used to indicate optimum size batteries for using storage with onsite generation for domestic applications. The model facilitates the choice of battery size to meet a particular criteria, whether that be optimising size, cost and lifetime, reducing grid export or attempting to be self-sufficient. Suitable battery sizes are found to have lifetimes of 2-4 years for high production microgeneration scenarios. However, this is also found to be highly variable, depending on chosen microgeneration scenario and battery size.
A Dual-Band Self-Oscillating Mixer for $C$ -Band and $X$ -Band Applications

A self-oscillating mixer that employs both the fundamental and harmonic signals generated by the oscillator subcircuit in the mixing process is experimentally demonstrated. The resulting circuit is a dual-band down-converting mixer that can operate in C -band from 5.0 to 6.0 GHz, or in X-band from 9.8 to 11.8 GHz. The oscillator uses active superharmonic coupling to enforce the quadrature relationship of the fundamental outputs. Either the fundamental outputs of the oscillator or the second harmonic oscillator output signals that exists at the common-mode nodes are connected to the mixer via a set of complementary switches. The mixer achieves a conversion gain between 5-12 dB in both frequency bands. The output 1-dB compression points for both modes of the mixer are approximately -5 dBm and the output third-order intercept point for C -band and X -band operation are 12 and 13 dBm, respectively. The integrated circuit was fabricated in 0.13-? m CMOS technology and measures 0.525 mm2 including bonding pads.
Decoupling natural resource use and environmental impacts from economic growth

Decoupling natural resource use and environmental impacts from economic growth. A Report of the Working Group on Decoupling to the International Resource Panel / Fischer-Kowalski, M. , Swilling, M. , von Weizsacker, E.U., Ren, Y. , Moriguchi, Y. , Crane, W. , Krausmann, F. , Eisenmenger, N. , Giljum, S. , Hennicke, P., Romero Lankao, P., Siriban Manalang, A. UNEP, 2011, 174 p., ISBN: 978-92-807-3167-5 http://www.unep. org/resourcepanel/decoupling/files/pdf/Decoupling_Report_English. pdf Voir ci-dessous.
Photonic Crystal Slab Add-Drop Filter

A new type of optical add drop filter (ADF) based on slab photonic crystals resonant cavities is proposed. ADF operation is based on coupling between the photonic crystal waveguides. Using the finite difference time domain (FDTD) method and plane wave expansion (PWE) method, the ADF characteristics and band structure of the filter, respectively are obtained. The proposed structure is optimized to work as an ADF. Dropping efficiency at 1560 nm and quality factor ( Q ) of our proposed structure are 90% and 195, respectively. The quantities of quality factor and transmission efficiency are suitable for optical applications. This structure is highly attractive for photonic integrated circuits (PICs).
Serial and Parallel Convolutional Neural Network Designs for NFDM Signals

Two conceptual convolutional neural network designs are proposed for directly decoding NFDM signals with the consideration of hardware implementation. A serial network is designed for small network size suitable for small user applications and a parallel network is designed for speed suitable for places such as data centres. In the numerical demonstrations, the serial design only occupies 0.5 MB of memory space while the parallel design occupies 128 MB of memory but allow parallel computing. Both network designs were trained with simulated data and able to reach more than 99.9% accuracy.
Propagation characteristics of rectangular corrugated waveguides

The propagation characteristics of guided waves in a rectangular waveguide with transverse corrugations on all four walls is investigated both theoretically and experimentally. The theoretical solution obtained is an improvement on an earlier analysis, providing a basis for the assumption that the corrugated side walls of the guide act, very approximately, like a smooth metal-walled guide. It is also shown that the new solution, in contrast to the earlier solution, satisfies the impedance compatibility relation.