bluuebunny/crossref_metadata_2025_split huggingface dataset:
Penerapan Blended Librarian di Era Digital (Studi Kasus di Perpustakaan Universitas Muhammadiyah Yogyakarta)
Authors: Qurotianti Aidilla 
Published: June 2020

Era digital merupakan tantangan bagi pustakawan, terutama pustakawan akademik di perpustakaan universitas. Demi menjunjung Tri Dharma Perguruan Tinggi di universitas, perpustakaan perguruan tinggi harus menyediakan layanan yang mengikuti pola kebutuhan informasi dari kalangan akademik. Selain meningkatkan layanan dan fasilitas, perpustakaan juga harus meningkatkan kemampuan dan keahlian sumber daya manusia di sana, yaitu pustakawan. Tidak hanya mampu mengolah bahan pustaka, tetapi pustakawan akademik juga harus memiliki kompetensi di bidang teknologi informasi dan memiliki peran dalam proses peningkatan pembelajaran mahasiswa. Kemampuan dalam menggabungkan ketiga kombinasi ini disebut blended librarian. Salah satu perpustakaan perguruan tinggi yang telah memiliki pustakawan dengan kemampuan blended librarian yaitu Perpustakaan Universitas Muhammadiyah Yogyakarta. Berdasarkan pemaparan tersebut, peneliti tertarik pada penelitian tentang implementasi blended librarian di era digital di Perpustakaan Universitas Muhammadiyah Yogyakarta. Penelitian ini adalah penelitian deskriptif kualitatif dengan menggunakan metode studi kasus. Hasil dari penelitian ini adalah implementasi blended librarian di Universitas Muhammadiyah Yogyakarta adalah 1) Menyediakan dan mengelola sumber referensi; 2) Menyediakan fasilitas yang mendukung learning commons; 3) Mengoptimalkan TIK untuk akses informasi; 4) Sebagai penghubung ke sumber lain di luar universitas; 5) User Education; 6) Literasi Informasi; 7) Pencegahan Plagiarisme; 8) Pelatihan Manajer Referensi; dan 9) Pendamping Dosen.
Pemetaan Bibliometrik Perkembangan Publikasi Ilmiah Sains Terbuka Periode Tahun 2000-2019
Authors: Tupan Tupan 
Published: June 2020

Kajian ini melakukan pemetaan bibliometrik tentang perkembangan penelitian sains terbuka berbasis data scopus periode tahun 2000-2019 yang bertujuan untuk mengetahui produktivitas publikasi Ilmiah tentang sains terbuka berdasarkan tahun; jurnal Inti yang mempublikasikan tentang penelitian sains terbuka; jumlah penulis terproduktif; jumlah publikasi ilmiah tentang sains terbuka berdasarkan afiliasi/ lembaga, negara, tipe dokumen; dan sponsor penandanaan; serta untuk memetakan perkembangan penelitian sains terbuka melalui clustering kata kunci menggunakan software VOSviewer. Kajian ini dilakukan melalui penelusuran informasi pada database Scopus menggunakan kata kunci “open science”. Selanjutnya, data dari database scopus dieksplorasi sesuai tujuan penelitian. Lebih lanjut, software VOSviewer digunakan untuk memvisualisasikan perkembangan penelitian tentang sains terbuka. Hasil penelitian menunjukkan bahwa pertumbuhan publikasi ilmiah tentang sains terbuka yang terindeks di scopus puncaknya terjadi pada tahun 2018 yaitu sebanyak 230 publikasi. Jurnal inti yang mempublikasikan publikasi ilmiah sains terbuka terbanyak adalah Royal Society Open Science sebanyak 26 publikasi, kemuadian dsusul Journal of Physics Conference Series 23 publikasi, Nature 18 publikasi. Penulis yang paling produktif menulis tentang open science adalah Quick R dari Indiana University. Publikasi ilmiah sains terbuka yang terbanyak mendapatkan sponsor penandanaan dari National Science Foundation sebesar 54 publikasi. Hasil pemetaan menggunakan sofware VOSviewer menunjukkan bahwa perkembangan publikasi sains terbuka terbagi menjadi 6 kluster.
A Computational Study of Effect of Thickness on Mild Steel Fracture
Authors: Permanoon Ali , Akhaveissy Amir Houshang 
Published: June 2020

Abstract
Fracture and crack propagation in various materials have always attracted the attention of researchers. Therefore, an investigation of the fracture of construction steel as one of the most extensively used materials in the industry is of necessity. Numerical modeling has been always a complementary aid to the laboratory sample analysis. One important issue is to study the behavior of laboratory specimens based on their dimensions, which finds further significance in fracture problems. In the current research, the effect of sample thickness on the crack behavior is investigated via a compact tension specimen. Accordingly, using numerical result validation, the behavior of the numerical samples along the thickness is examined and used as a complement to the experimental results. By modeling and analyzing numerical samples with different thicknesses (0.1 &lt; B/W &lt; 2), an equation is proposed. The equation can be used to determine in what percentage of the thickness from the free edge the behavior is either plane stress or plane strain.
Measurement of Water Content in Metal Powders
Authors: Lefebvre Louis-Philippe , Dai Jiajie , Thomas Yannig , Daroszewska Malgosia , Martinez-Rubi Yadienka 
Published: June 2020

Abstract
It is recognized that humidity affects the properties of metallic powders (e.g., flowability, density, composition). Although standards exist to evaluate the water content in various materials, there is presently no standard method validated or specifically adapted for the evaluation of the water content in metallic powders. This article evaluates the water content in titanium powders using different techniques (gravimetry, Karl Fischer titration, quantification of volatiles with a relative humidity sensor). The effect of measurement conditions, particle size, and types of powder were investigated. The results showed that the adsorption of water is a function of the relative humidity in the environment and the characteristics of the powders. The relative humidity in the laboratory has, however, limited effect if the exposure of the powder to the environment is limited prior to the measurements. Water adsorption/desorption is a function of the surface area of the powder. The measured values were underestimated as the methods used (i.e., heating at temperature lower than 275°C) did not allow recovering all the water from the powders (i.e., chemisorb water is strongly bonded to the surface and cannot be completely desorbed at temperatures lower than 275°C). Although some variability has been observed, the measurement of volatiles with the relative humidity sensor allowed discriminating powders with water contents ranging from 0 to 108 ppm. The amount of water measured using the gravimetric technique was not sensitive enough to precisely monitor the small amount of water adsorb/desorb on the powders investigated in this study. Additional studies are needed to assess the variability and reproducibility of the results and evaluate the techniques on other types of metallic powders.
Processing of Microscale Aluminum Foamed Particles
Authors: Key D. , Daoush Walid M. , Morsi K. 
Published: June 2020

Abstract
Metallic foams have been gaining significant interest because of their unique properties. The present study investigates the processing of microscale particles of aluminum–titanium dihydride foaming precursors, together with their foaming characteristics. The external and internal features and dimensions of these precursor particles were found to be highly dependent on the mechanical milling process and the use of a process control agent (methanol) during milling. The effect of the foaming environment on the foaming characteristics was investigated. Foaming in argon was found to yield better foaming characteristics than that in air.
RANS study of very high Reynolds-number plane turbulent Couette flow
Authors: Sherikar Akshay , Disimile P. J. 
Published: June 2020

The objective of this study is to expound on the deliverables of a steady-state RANS (Reynolds Averaged Navier Stokes) simulation in one of the simplest flows, Couette flow, at a very high Reynolds number. To that end, a process to perform better grid sensitivity testing is introduced. Three two-equation turbulence models ( , , and ) are compared against each other as well as pitted against formal literature on the subject and core flow velocities, slopes, wall-bounded velocities, shear stresses and kinetic energies are analyzed. applied with enhanced wall functions is consistently found to be in better agreement with previous studies. Finally, plane turbulent Couette flow at 51,099, the range at which it has not been studied experimentally, numerically or analytically in former studies, is simulated. The results are found to be consistent with the trends asserted by literature and preliminary computations of this study.
Effect of combined drink cans and steel fibers on the impact resistance and mechanical properties of concrete
Authors: Syamsir A. , Mubin S. M. , Nor N. M. , Anggraini V. , Nagappan S. , Sofan A. M. , Muda Z. C. 
Published: June 2020

This study investigated the combine effect of 0.2 % drink cans and steel fibers with volume fractions of 0%, 0.5%, 1%, 1.5%, 2%, 2.5% and 3% to the mechanical properties and impact resistance of concrete. Hooked-end steel fiber with 30 mm and 0.75 mm length and diameter, respectively was selected for this study. The drinks cans fiber were twisted manually in order to increase friction between fiber and concrete. The results of the experiment showed that the combination of steel fibers and drink cans fibers improved the strength performance of concrete, especially the compressive strength, flexural strength and indirect tensile strength. The results of the experiment showed that the combination of steel fibers and drink cans fibers improved the compressive strength, flexural strength and indirect tensile strength by 2.3, 7, and 2 times as compare to batch 1, respectively. Moreover, the impact resistance of fiber reinforced concrete has increase by 7 times as compared to non-fiber concretes. Moreover, the impact resistance of fiber reinforced concrete consistently gave better results as compared to non-fiber concretes. The fiber reinforced concrete turned more ductile as the dosage of fibers was increased and ductility started to decrease slightly after optimum fiber dosage was reached. It was found that concrete with combination of 2% steel and 0.2% drink cans fibers showed the highest compressive, split tensile, flexural as well as impact strength.
Effect of corrosion on mechanical properties of the joining of materials
Authors: Abbas Mohamed , M. Abdella Galal , O. Eltai Elsadig , Gul M. 
Published: June 2020

The effect of corrosion behavior in critical environmental conditions on the mechanical properties of composite/metal materials joints was investigated by immersing metalic materials into 5wt% hydrochloric acid solutions. The current study was carried out on a single lab joint with a total thickness of 4mm; thus, a destructive test was undertaken to investigate the corrosion behavior induced degradation of mechanical properties followed by Scanning electron microscope analysis (SEM). The joined specimens were examined under both non-corrosive and corrosive environmental conditions. Moreover, the Taguchi analysis of experimental data for maximizing the required output is carried out to validate the impact and significance of input factors. Experimental results have shown that the weight losses of the mild steel and aluminum materials are 7.45% and 16.7%, respectively, in 5% wt hydrochloric acid after three weeks. The corrosive environment affected the strength of the joints and obtained an early failure on the joint region that leads to a reduction on the strength of the materials by almost 15% compared to the non-corroded joint. The joining of non-corroded similar steel obtained the highest maximum stress among all other specimens, where the maximum recorded stress was 140.5MPa as compared to 125MPa for corroded specimen. Furthermore, the mode of failure and hardness tests were obtained and analyzed for all specimens. A significant reduction in the hardness of the materials after exposure to the HCl acid was observed.
Modelling and optimization of machining parameters during hardened steel AISID3 turning using RSM, ANN and DFA techniques: Comparative study
Authors: Lakhdar Bouzid , Athmane Yallese Mohamed , Salim Belhadi , Haddad A. 
Published: June 2020

Nowadays, the relationships linking the cutting conditions to the different technological parameters are becoming a major industrial objective. The present work deals with some machinability investigations involving surface roughness and cutting force in finish turning of AISI D3-hardened steel using carbide, ceramic and coated ceramic inserts. The combined effects of the cutting parameters represented by the cutting depth (ap), the cutting tool (Tool), the cutting speed (Vc), and the feed rate (f) on the output parameters illustrated by both the surface roughness (Ra) and the cutting force (Fy) are investigated using the analysis of variance (ANOVA). The modelling of surface roughness and cutting force is carried out using both Response Surface Methodology (RSM) and Artificial Neural Network (ANN). In order to determine the most efficient technique, the models developed are compared in terms of the coefficient of determination (R2), the Root Mean Square Error (RMSE) and the Model Predictive Error (MPE). Furthermore, a multi-objective optimization using the Desirability Function Analysis (DFA) has been performed. The obtained results show that the ANN models (For Ra: R²=93%, RMSE=0.02%, MPE=4.99% and for Fy: R²=94%, RMSE=2.52%, MPE=3.11%) performed better than those developed using the RSM approach (For Ra: R²=90.4%, RMSE=0.051%, MPE=18.21% and for Fy: R²=79%, RMSE=31.17%, MPE=55.92%). As a consequence, the achieved ANN models for (Ra) and (Fy) are exploited as objective function for the response optimization applying the DFA technique. The optimum level of the input parameters for the combined desirability is finally identified as ap1–Tool3–Vc3–f1 for both (Ra) and (Fy) with a maximum error of 2.94%.
Combined hardening parameters of steel CK45 under cyclic strain-controlled loading: Calibration methodology and numerical validation
Authors: Paygozar Bahman , Dizaji S.A , Saeimi Sadigh M.A 
Published: June 2020

This study is to indicate the methodology of investigating the behavior of materials in the plastic domain while bearing cyclic loading i.e. low cycle fatigue. Materials under such loading, which experience huge amount of plastic deformation, are affected by the hardening or softening effects of loading which should be taken into account in all applications and numerical simulations as well. This work investigates the methodology of obtaining the nonlinear isotropic and kinematic hardening of steel CK45. To find the parameters of the above mentioned combined nonlinear isotropic/kinematic hardening one tensile test as well as three strain-controlled low cycle fatigue tests are carried out to extract the monotonic stress/strain curve and three diagrams of hysteresis curves, respectively. Then, four parameters necessary to simulate the nonlinear isotropic/ kinematic behavior of the material are extracted by means of curve fitting technique using MATLAB software. Afterwards, the accuracy of the data extracted from the experimental tests using the proposed methodology, are verified in a finite element package, ABAQUS, through implementing two user defined subroutines UMAT written in FORTRAN. It is indicated that the computed constants draw stress-strain curves much closer to experimental responses than isotropic hardening model does. Eventually, the numerical results acquired by simulating the behavior of the sample under cyclic loading with importing the constants, calculated via combined hardening model, to ABAQUS reflects results highly close to the experimentally obtained response of the sample. It means that the procedure used to find the constants is accurate enough and consequently the constants computed are able to be used in both ABAQUS and subroutines.
Some properties of generalized hypergeometric Appell polynomials
Authors: Bedratyuk L. , Luno N. 
Published: June 2020

Let $x^{(n)}$ denotes the Pochhammer symbol (rising factorial) defined by the formulas $x^{(0)}=1$ and $x^{(n)}=x(x+1)(x+2)\cdots (x+n-1)$ for $n\geq 1$. In this paper, we present a new real-valued Appell-type polynomial family $A_n^{(k)}(m,x)$, $n, m \in {\mathbb{N}}_0$, $k \in {\mathbb{N}},$ every member of which is expressed by mean of the generalized hypergeometric function ${}_{p} F_q \begin{bmatrix} \begin{matrix} a_1, a_2, \ldots, a_p \:\\ b_1, b_2, \ldots, b_q \end{matrix} \: \Bigg| \:z \end{bmatrix}= \sum\limits_{k=0}^{\infty} \frac{a_1^{(k)} a_2^{(k)} \ldots a_p^{(k)}}{b_1^{(k)} b_2^{(k)} \ldots b_q^{(k)}} \frac{z^k}{k!}$ as follows $$ A_n^{(k)}(m,x)= x^n{}_{k+p} F_q \begin{bmatrix} \begin{matrix} {a_1}, {a_2}, {\ldots}, {a_p}, {\displaystyle -\frac{n}{k}}, {\displaystyle -\frac{n-1}{k}}, {\ldots}, {\displaystyle-\frac{n-k+1}{k}}\:\\ {b_1}, {b_2}, {\ldots}, {b_q} \end{matrix} \: \Bigg| \: \displaystyle \frac{m}{x^k} \end{bmatrix} $$ and, at the same time, the polynomials from this family are Appell-type polynomials.
The generating exponential function of this type of polynomials is firstly discovered and the proof that they are of Appell-type ones is given. We present the differential operator formal power series representation as well as an explicit formula over the standard basis, and establish a new identity for the generalized hypergeometric function. Besides, we derive the addition, the multiplication and some other formulas for this polynomial family.
Apuntes para una articulación crítica entre un proyecto ontológico de liberación y un programa curricular en construcción. Caso: Lic. en Filosofía e Historia de la UGC
Authors: Ricardo Santos Cristhian 
Published: June 2020

El presente artículo pretende dar a conocer los resultados y discusiones de un trabajo de investigación que se propone realizar una lectura “no eurocéntrica” de aquellos criterios, principios y conceptos que fundamentan el marco teórico-conceptual, bajo el cual, se busca formar a los futuros licenciados en filosofía e historia de la Universidad la Gran Colombia, a partir del análisis de la documentación legal vigente que rige a la misma y teniendo como marco de referencia el proyecto ético-pedagógico expuesto por Enrique Dussel en su obra Ética de la liberación en la época de la globalización y la exclusión publicada en 1998. Este trabajo giró en torno a la propuesta metodológica de una investigación formativa de tipo cualitativo donde el grado de profundidad desde el que se abordó el fenómeno concreto de estudio, estuvo enmarcado dentro de los límites de un nivel exploratorio de investigación y un análisis documental. El trabajo se dividió en dos partes; primero, el análisis crítico de los criterios, principios y conceptos del proyecto ético-pedagógico propuesto por Dussel y materializado en su ética de 1998 y segundo, el análisis crítico de los criterios, principios y conceptos que fundamentan el marco teórico-conceptual del programa de licenciatura en filosofía e historia de la Universidad la Gran Colombia, para así, finalizar con la develación de las condiciones de posibilidad de una articulación critica entre estos dos proyectos ontológicos.
Prácticas de enseñanza de lectura crítica en educación básica de una institución pública colombiana
Authors: Pulgarín Rodríguez Maira Alejandra , Meneses Maria Erica 
Published: June 2020

Este trabajo surgió de la necesidad de reflexionar en torno a las prácticas de enseñanza de lectura crítica que se llevan a cabo al interior de las aulas en las diferentes disciplinas de la educación básica en una institución pública colombiana, por tanto, el proyecto corresponde a la revisión, análisis y desarrollo de los procesos sistematizados de estrategias de enseñanza para comprender textos, con el fin de cualificar las competencias de los lectores implicados y la construcción del saber en áreas de especialidad. De ahí que su propósito fue caracterizar las prácticas de enseñanza de lectura crítica que desarrollan los docentes con sus estudiantes en el trabajo de aula, en diferentes áreas del conocimiento en una institución pública colombiana de la educación básica. Se realizó un estudio cualitativo de tipo descriptivo con revisión documental de los materiales existentes para el desarrollo de las clases, se aplicaron entrevistas semiestructuradas a los docentes y estudiantes, igualmente, se valoraron variables adicionales externas que permitieron elaborar un perfil de desempeño de los sujetos lectores.
Autonomía económica de las mujeres: un reto para el Estado (Estudio de caso, el Departamento de Nariño)
Authors: Goyes Isabel , Gallego Amarantha , Jaramillo Víctor 
Published: June 2020

Este artículo somete a discusión los resultados derivados de la revisión normativa colombiana que refuerza el derecho de las mujeres a la autonomía económica, así como la necesidad inaplazable de garantizar la igualdad de género, como una premisa fundamental para avanzar hacia el desarrollo y la justicia social. De igual manera se presentan los resultados de los análisis de la GEIH, mediante los cuales se identificaron las principales barreras y restricciones que enfrentan las mujeres para acceder al mercado laboral, relacionadas con las vulnerabilidad a las cuales están expuestas por el hecho de ser mujeres. Finalmente se resalta la necesidad de visibilizar aquellas consecuencias no evidentes de la cultura patriarcal que permiten naturalizar prácticas discriminatorias propias del mercado laboral, afirmando que la injerencia del Estado en el mercado laboral y en la economía del cuidado, es una obligación ineludible para alcanzar la igualdad de género y meta planteada en los Objetivos del Desarrollo Sostenible DS 2030.Este artículo es producto de una investigación de mayor cobertura financiada por el Sistema de Investigaciones de la Universidad de Nariño, sobre la temática de la autonomía económica de las mujeres.
Diagnóstico arqueológico de contagem, minas gerais, Brasil
Authors: De Oliveira Noronha Inês 
Published: June 2020

Este artículo hace referencia a una investigación arqueológica en Contagem, ciudad del estado de Minas Gerais, Brasil. El trabajo tiene carácter de diagnóstico para futuras construcciones en la ciudad. En el mismo se presentan nuevas evidencias del potencial arqueológico de la comunidad de Los Arturos, que fueron halladas en el área. El artículo es informativo y es parte de un proyecto investigativo en desarrollo para mantener la herencia cultural de Contagem
Desarrollo de habilidades prácticas en criminalística en la formación de abogados en Ecuador
Authors: Machado Maliza Mesías Elias , González González Margarita 
Published: June 2020

El desarrollo de habilidades prácticas es importante en la formación profesional del estudiante de Derecho, para actuar en correspondencia con las demandas de la sociedad ecuatoriana. Este aspecto debe ser atendido por todas las asignaturas y en la Criminalística, adquiere gran importancia porque estudia las evidencias materiales en la investigación criminal y aporta pruebas que sirven de sustento al Ministerio Fiscal para ejercer la acción penal pública. Por eso, en el proceso de enseñanza aprendizaje de esta asignatura, el estudiante debe desarrollar acciones conscientes que se apoyen en los conocimientos teóricos adquiridos y que se ejerciten utilizando las vías y medios necesarios. En UNIANDES no se favorece el desarrollo de estas habilidades mediante el proceso de enseñanza aprendizaje de la Criminalística. En este artículo se fundamenta la importancia del desarrollo de habilidades prácticas en dicho proceso, se determinan las dimensiones e indicadores para realizar el diagnóstico y se analizan los resultados alcanzados.