Miracle-dz/UniFAR-FTUs huggingface dataset:
Key Issues in the Application of Knowledge Management in Education

Abstract : Today's world is a fast moving place in which decisions are made with an ever-increasing speed, and the success of an organization rests on its ability to correctly make these decisions. This shift in paradigms has made knowledge the key resource as organizations shift their focus from natural resources to intellectual assets, heralding the use of a concept called Knowledge Management (KM). Despite its acceptance and use in commercial organizations, KM is not being applied in the academic world. No KM models exist for educational use, and no other studies into this topic can be found. This research establishes a foundation for future research by answering the question "What does current literature identify as the key issues in the application of KM concepts in education? " Forty-eight key issues were uncovered, each with varying levels of emphasis. Further research is required to better define these 48 issues, and to discover the cause of this educational issue gap. The key issues discovered here also can be used to build and test an actual KM model for application in an educational environment.
An eigenvalue equation analysis of a symmetrical coax line to N-way waveguide power divider

We present an eigenvalue equation analysis of a TEM coaxial line to N-way waveguide power divider. Applied to this particular structure for the first time, the analysis provides the scattering matrix of the power divider in terms of the eigenvalues of the structure. Because there are fewer unknown eigenvalues than S-parameters, we are able to determine for a given value of N 1) if all the divider's ports can be matched perfectly, 2) if not all the ports can be matched, then how well a given port can be matched, and 3) the values of the other S-parameters. >
Lossless dielectric tapers with three-dimensional geometry

General properties of two-dimensional tapers for the cylindrical coordinate systems are described. A criterion to determine the index distribution of lossless tapers is given in terms of the phase shift. The design method of lossless tapers with three dimensional geometry is presented. Design equations of tapers for spherical, conical and ellipsoidal coordinate systems are described, and some specific design examples are presented. Tapers for a complicated refractive index can be solved by a numerical method based on the design equations. It is shown that equations for the ellipsoidal coordinates can be reduced to those for coordinate systems with high symmetry. >
Linear Models for the Prediction of Animal Zone Ammonia in a Weaned Piglet Building

Measuring ammonia inside livestock buildings poses many challenges that hinder the incorporation of this variable into environmental control systems. The aim of this study was to measure various microclimate variables inside a weaned piglet building and analyse their interactions with NH3 concentrations for setpoint temperatures of 26 and 25 °C, in order to control NH3 concentrations based on other easily measurable variables. The experimental test was conducted on a conventional farm in Northwest Spain. NH3 concentrations in the animal zone were best correlated with CO2 concentrations in the animal zone (R = 0.91 and R = 0.55) and velocity of air extracted through the fan (R = 0.72 and R = 0.65) for setpoint temperatures of 26 and 25 °C, respectively. Similarly, strong correlations were found with relative humidity in the animal zone and temperature of inlet air. Because NH3 concentration in the animal zone is related to the performance of the ventilation system, strong positive correlations were found between NH3 concentration and temperature of inlet air whereas negative correlations were found between NH3 concentration and ventilation rates. Linear regression models based on CO2 concentrations in the animal zone and temperature of inlet air are recommended, because they provide a good fit for both setpoint temperatures using variables that can be readily measured.
Impact of irrigated and non-irrigated cropping systems on soil physicochemical properties in a small-scale irrigation farming system in Eastern Uganda

This study evaluated the impact of irrigation and cropping on soil physicochemical properties at Kyekide small scale irrigation farm in Jinja district, eastern Uganda. Treatments included Land-use systems under perennial and annual cropping with and without irrigation for over 20 years. The hypothesis was that there were insignificant differences in physicochemical properties of the soil under irrigated and non-irrigated cropping systems. Soil physical properties except hydraulic conductivity was not significantly different with irrigation and cropping. The pH of the soils ranged from moderately acidic to neutral pH (5.17-7.40), with irrigated soils tending to be more neutral than non-irrigated soils. SOM content was higher in the irrigated soils and perennial soils than in the non-irrigated and annual soils. The soils were moderately deficient in N and severely deficient in P (mean values =0.175% N and 1.183mg kg-1 P) compared with the critical of 0.2% and 15 mg kg-1, respectively. Irrigated soils had a significantly higher Na+ content than non-irrigated soils, with a mean value of 2.985cmol/kg. The K+, Ca2+, and Mg2+ contents were higher in irrigated and perennial soils than non-irrigated and annual soils. The study suggested monitoring the soils under an irrigation scheme to prevent degradation due to increased salt accumulation or chemical fertility decline. Overall, monitoring of soil quality is vital in irrigation schemes to monitor the impacts of water on the environment.
Modified-strip-analysis method for predicting wing flutter at subsonic to hypersonic speeds.

A modified strip analysis has been developed for rapidly predicting flutter of finite-span, swept or unswept wings at subsonic to hypersonic speeds. The method employs distributions of aerodynamic parameters which may be evaluated from any suitable linear or nonlinear steady-flow theory or from measured steady-flow load distributions for the underformed wing. The method has been shown to give good flutter results for a broad range of wings at Mach number from 0 to as high as 15.3. The principles of the modified strip analysis may be summarized as follows: Variable section lift-curve slope and aerodynamic center are substituted respectively, for the two-dimensional incompressible-flow values of 2 pi and quarter chord which were employed by Barmby, Cunningham, and Garrick. Spanwise distributions of these steady-flow section aerodynamic parameters, which are pertinent to the desired planform and Mach number, are used. Appropriate values of Mach number-dependent circulation functions are obtained from two-dimensional unsteady compressible-flow theory. Use of the modified strip analysis avoids the necessity of reevaluating a number of loading parameters for each value of reduced frequency, since only the modified circulation functions, and of course the reduced frequency itself, vary with frequency. It is therefore practical to include in the digital computing program a very brief logical subroutine, which automatically selects reduced-frequency values that converge on a flutter solution. The problem of guessing suitable reduced-frequency values is thus eliminated, so that a large number of flutter points can be completely determined in a single brief run on the computing machine. If necessary, it is also practical to perform the calculations manually. Flutter characteristics have been calculated by the modified strip analysis and compared with results of other calculations and with experiments for Mach numbers up to 15.3 and for wings with sweep angles from 0 degrees to 52.5 degrees, aspect ratios from 2.0 to 7.4, taper ratios from 0.2 to 1.0, and center-of-gravity positions between 34% chord and 59% chord. These ranges probably cover the great majority of wings that are of practical interest with the exception of very low-aspect-ratio surfaces such as delta wings and missile fins. This program has been implemented on the IBM 7094.
Hepatorenal syndrome in acute-on-chronic liver failure with acute kidney injury: more questions requiring discussion

Abstract In cirrhosis with ascites, hepatorenal syndrome (HRS) is a specific prerenal dysfunction unresponsive to fluid volume expansion. Acute-on-chronic liver failure (ACLF) comprises a group of clinical syndromes with multiple organ failure and early high mortality. There are differences in the characterization of ACLF between the Eastern and Western medical communities. Patients with ACLF and acute kidney injury (AKI) have more structural injuries, contributing to confusion in diagnosing HRS-AKI. In this review, we discuss progress in the pathogenesis, diagnosis, and management of HRS-AKI, especially in patients with ACLF. Controversy regarding HRS-AKI in ACLF and acute liver failure, hepatic carcinoma, shock, sepsis, and chronic kidney disease is also discussed. Research on the treatment of HRS-AKI with ACLF needs to be more actively pursued to improve disease prognosis.
Vibration harvesting in traffic tunnels to power wireless sensor nodes

Monitoring the traffic and the structural health of traffic tunnels requires numerous sensors. Powering these remote and partially embedded sensors from ambient energies will reduce maintenance costs, and improve the sensor network performance. This work reports on vibration levels detected in railway and road tunnels as a potential energy source for embedded sensors. The measurement results showed that the vibrations at any location in the road tunnel and at the wall in the railway tunnel are too small for useful vibration harvesting. In contrast, the railway sleeper features usable vibrations and sufficient mounting space. For this application site, a robust piezoelectric vibration harvester was designed and equipped with a power interface circuit. Within the field test, it is demonstrated that sufficient energy is harvested to supply a microcontroller with a radio frequency (RF) interface.
Pengaruh penggunaan film dokumenter terhadap hasil belajar IPS SMP

Penelitian ini bertujuan untuk mencari tahu pengaruh penggunaan media pembelajaran film dokumenter terhadap hasil belajar siswa mata pelajaran IPS di SMP Negeri 2 Gending Probolinggo Tahun Pelajaran 2019/2020. Penelitian dilakukan dengan pendekatan kuantitatif dengan metode quasi experiment . Populasi penelitian ini adalah siswa kelas VII SMP Negeri 2 Gending Probolinggo sebanyak 100 siswa, diwakili oleh 59 siswa kelas VIIA dan VIIB sebagai sampel. Teknik sampling ditentukan dengan metode purposive sampling . Teknik pengumpulan data dilakukan dengan cara dokumentasi, observasi dan uji instrument. Uji validitas dilakukan dengan menguji validitas isi melalui aplikasi SPSS for Windows 22. Analsisis data dilakukan melalui uji normalitas, iju homogenitas dan Uji T-test. Hasil penelitian menunjukkan ada pengaruh yang signifikan antara penggunaan media pembelajaran film dokumenter terhadap hasil belajar siswa mata pelajaran IPS di SMP Negeri 2 Gending Probolinggo tahun pelajaran 2019/2020. The effect of using documentary films on Social Studies learning outcomes in junior high school T his study aims to find out the effect of using documentary film learning media on student learning outcomes for social studies subjects at SMP Negeri 2 Gending Probolinggo for the 2019/2020 academic year. The research was conducted with a quantitative approach with a quasi-experimental method. The population of this study was the seventh grade students of SMP Negeri 2 Gending Probolinggo as many as 100 students, represented by 59 students of grades VIIA and VIIB as samples. The sampling technique was determined by purposive sampling method. Data collection techniques were carried out by means of documentation, observation and instrument testing. The validity test was carried out by testing the content validity through the SPSS for Windows 22 application. Data analysis was carried out through the normality test, homogeneity test and T-test. The results showed that there was a significant influence between the use of documentary film learning media on student learning outcomes in social studies subjects at SMP Negeri 2 Gending Probolinggo for the 2019/2020 school year.
The smiling assassin?: Reconceptualising redundancy envoys as quasi-dirty workers

Abstract Despite redundancies having far reaching consequences for organisations, relatively limited attention has been paid to the conflicting experiences of those implementing the redundancy process; the redundancy envoys. By drawing on theories of cognitive dissonance and ‘dirty work’ we explain how individuals implementing redundancies can experience a disconnect between their outward and inner emotions. We reconceptualise redundancy envoys as quasi-dirty workers as they intermittently perform ‘dirty work’ tasks that may be perceived as morally tainted, whilst recognising their conventional role incorporates tasks perceived as contrary to that of ‘dirty work’. Our study draws on insider research access to redundancy envoys over a five-year period during the implementation of four consecutive redundancy programmes, providing the opportunity to observe decisions and actions in ‘real time. ’ We offer a contemporary reconceptualisation of the redundancy envoywhich permits a deeper understanding of the negative impact on redundancy envoys and offers opportunities to examine how this can be reduced. In addition, it is anticipated that the results of this study will offer support to HR functions in reducing the stigma of ‘dirty work’ for redundancy envoys with the intention of enhancing the management of redundancy implementation.
Living-Apart-Together (LAT) in Contemporary Sweden: (How) Does It Relate to Vulnerability?

Sweden is among the countries with the highest share of single households in Europe, but not all are truly partnerless. We examine the potential vulnerability of individuals in living-apart-together relationships at age 30 and above, analyzing data from the Swedish GGS. We apply multinomial logistic regression. The results show that individuals engaging in LAT occupy an intermediate position in terms of socioeconomic resources (homeownership and economic situation), being less advantaged than co-residents but better-off than singles, especially men. We find no association between ill-health and living in a LAT arrangement. Having previous family experiences (unions with or without children) is positively associated with LAT, but childhood family composition does not matter. The majority of LAT individuals claim to be constrained to living-apart-together rather than LAT being their preferred alternative. Women and the elderly (aged 70+) are, however, more likely to engage in LAT by choice and appreciate their non-residential partnerships.
Experimental validation of a structural health monitoring methodology: Part III. Damage location on an aircraft wing

This paper documents the third phase of a programme of experimental work which validates a structural health monitoring methodology based on novelty detection. In this paper, an extension of the detection method for damage location is proposed and demonstrated. The structure of interest is a Gnat aircraft wing. Although it was not possible to damage the aircraft, the method was demonstrated by determining which of a set of inspection panels had been removed.
The role of peer effects on farmers’ decision to adopt unmanned aerial vehicles: evidence from Missouri

ABSTRACT This paper examines the role of peer effects on farmers’ decision to adopt Unmanned Aerial Vehicles (UAVs). This relationship is analysed by means of a Bayesian spatial autoregressive probit model applied to spatially explicit data describing the awareness, attitudes, and adoption of UAVs by 809 Missouri farmers. Results show that it is not only the farmers’ characteristics, awareness, and attitudes towards UAVs that affect adoption, but also the adoption behaviour and traits of neighbouring peers. Peer effects arise both from UAV adoption of nearby farmers and from spatial spillovers of farmers’ characteristics, awareness of UAV agricultural applications, expectations of economic and environmental benefits from UAV use and perceived neighbour privacy concerns in the use of UAVs.
Application of a rat‐race coupler in low‐cost load and source pull transistor amplifier design

A method for load and source pull is proposed in which rat‐race couplers with sections of shorted transmission lines are used. It is shown that the connection of a rat‐race coupler with two shorted transmission lines allows for realization of any desired impedance, thus, allowing for effective transistor matching and, therefore, achieving maximum output power. Both theoretical analysis and experimental results are presented showing usefulness of the proposed technique. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2537–2541, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24668
Unblocking Performance Blocks: An Interdisciplinary Approach towards an Exploratory Study on Musical Performance Blocks in "Late Arriving" Pianists

This thesis critically examines performance blocks among late arriving pianists. In particular, this thesis tests the potential of the Bio-aesthetic Approach to Musical Performance (BAMP) developed by Phil Cohen, in reducing established performance blocks through an exploratory methodology. BAMP is evaluated in terms of the performer's somatic and cognitive experiences in unblocking via the organization principle of sketch and test mode of verification. Specifically, this thesis considers the effectiveness of BAMP concepts in enhancing coherence in music performance---these include aesthetic order; cross-modal synchronization; expressive timing; homeokinesis; vocabulary; metaphoric imperative; paradoxical causality and delegated external I embodied conductor. Through a three-part research study---(1) case studies: one reflective, two participatory, and two observational; (2) a two-year case study with a late arriving pianist; and (3) interview studies with three career track concert pianists---a select number of tangible contributions to the formation of blocks have been examined. Effective unblocking processes have also been explored with late arriving pianists using concepts from BAMP. This study demonstrates that BAMP provides a useful perspective towards the study of musical performance blocks in late arriving pianists. The subtext of the research is to encourage researchers, performance analysts, and pedagogues to re-examine existing assumptions about appropriate methodology, pedagogical practices and approaches to musical performance
Climatology of Cloud‐Top Radiative Cooling in Marine Shallow Clouds

A one‐year’s worth of near‐global marine shallow single‐layer cloud top radiative cooling (CTRC) is derived from a radiative transfer model with inputs from the satellite cloud retrievals and reanalysis sounding. The mean cloud top radiative flux divergence is 61 Wm−2, decomposed into the longwave and shortwave components of 73 and −11 W m−2, respectively. Equatorward of 30°N/S, the CTRC is largely a reflection of free‐atmospheric specific humidity distribution: a dry atmosphere enhances CTRC by reducing downward thermal radiation. Consequently, the cooling minimizes in the “wet” tropics and maximizes in the “dry” eastern subtropics. Poleward of 30°N/S, the CTRC decreases slightly due to the colder clouds that emit less effectively. The CTRC exhibits distinctive seasonal cycles with stronger cooling in the winter and has amplitudes of order 10–20 Wm−2 in stratocumulus‐rich regions. The datasets were used to train a machine‐learning model that substantially speeds up the retrieval.
Why are You Here? Modeling Illicit Massage Business Location Characteristics with Machine Learning

ABSTRACT Illicit massage businesses are a venue for sex and labor trafficking in the United States. Though many of their locations are made publicly available through online advertising, little is known about why they choose to locate where they do. In this work, we use inferential modeling to better understand the spatial distribution of illicit massage businesses within the U.S. Based on addresses web-scraped weekly from online advertisements over 6 months, we modeled illicit massage business prevalence at the census tract and county levels. We used publicly available data to characterize census tracts and counties, finding that the state in which they are located, distance to international airports, rent and income levels, racial composition, and religious presence all had significant relationships to illicit massage business presence. Illicit massage businesses operating with unethical labor practices and/or forced sexual services are not in line with just, peaceful, and inclusive societal goals, and the burdens of this industry disproportionately fall on women. While we emphasize that not all illicit massage businesses are settings of human trafficking, better understanding this industry is a key step toward better regulating it and protecting those harmed within it.
Influence of piston surface treatment on piston assembly friction in an eco-mileage vehicle engine

This study investigated the effect on piston assembly friction after treating piston surfaces with a fine particle bombarding process, using a friction measurement apparatus with a floating cylinder liner, similar to an eco-mileage vehicle engine. Friction was measured in four conditions: (1) no treatment (standard piston in a commercially-available engine), (2) micro dimple treatment (45 μm ceramic particles were air-blasted onto the piston surface), (3) molybdenum disulfide (MoS2) shot treatment (1 μm MoS2 particles were air-blasted onto the piston surface), and (4) combination of the previous two micro dimple and MoS2 shot treatments (first 45 μm ceramic particles and then 1 μm MoS2 were air-blasted onto the piston surface). Results indicated that friction decreased in the following order: no treatment > micro dimple treatment > MoS2 shot treatment > combination of micro dimple and MoS2 shot treatments.
Contact effects on HF loss of CPW high resistivity silicon lines

This paper shows that the HF losses of CPW lines realized on 5-10 K/spl Omega/cm HRS (High Resistivity Silicon) substrates are strongly affected by the derivative of the I-V curves, ie. HF losses are higher where the I-V characteristic changes most rapidly. As a result the excess HF loss due to choice of quiescent bias voltage can be as high as 0.3-0.4 dB/cm. The implication of the effect is that by proper dc biasing of a CPW line on HRS substrate minimum HF loss can be achieved. This is of importance when active devices are to be biased through line interconnects.