bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation of Pressure Distribution in Buried Pipes with Liquid in the Explosion
Authors: Parviz M. , Aminnejad B. , Fiouz A.R. 
Published: October 2019

AbstractIn this Paper, a parametric study on pipes buried in soil was performed illustrating the results of blast loading. Effects of various parameters such as the physical properties of water, oil, gas, air, soil, pipes, and TNT have been investigated. The arbitrary Lagrangian-Eulerian (ALE) method was employed using LS-DYNA software. The maximum pressure in a buried pipe explosive was observed at an angle of about 0° to 45° and the minimum pressure occurred at an angle of about 45° to 90°. Therefore, all figures in this study illustrate that fluid pressure levels in buried pipes can help in their stabilization. In generally, by increasing the 1.23 times of liquid density under the explosion, the pressure levels in the soil decreased by 1.3 percent. The gas pressure has been increasing more than oil and water pipes 39.73 and 40.52 percent, respectively.
Indirect Tensile Test as a Simple Method for Rut Resistance Evaluation of Asphalt Concrete
Authors: Zieliński P. 
Published: October 2019

AbstractThe paper presents the dependence of ITS results at the elevated temperature (40°C) on rutting parameters, i.e. proportional rut depth (PRDAIR) and wheel tracking speed (WTSAIR), obtained at the temperature of 60°C. The asphalt mixture samples were prepared in the gyratory compactor, but ITS tests were conducted with typical Marshall press, at a loading rate of 50 mm/min. Correlation analyses show a strong relationships between ITS results and rutting parameters, whereby the correlation coefficients obtained are higher for the PRDAIR parameter (r = −0.88) than WTSAIR (r = −0.81). Using the obtained regression functions, the prediction limits as well as confidence limits were calculated, which allowed to develop criteria for assessing resistance to rutting on the basis of ITS test, and taking into account the technical requirements in Poland.
The Method of Planning the Implementation of Railway Investments Including Risk
Authors: Kowalski J. , Poloński M. 
Published: October 2019

AbstractAlmost every construction investment should contain elements of risk forecasting, whose validity depends, among other things, on the correct assessment of potential threats. These risks were defined by the Authors as risk factors that were characterized and then grouped on the basis of performed research in the scope of their identification. Due to lack of method of scheduling railway investments on the construction market, including risk assessment, a research effort was undertaken [14-17], the result of which is the proposed method. The article presents the main assumptions of the original method of rail investment planning, which on the one hand, will take into account the impact of potential threats identified previously by the Authors, and, on the other, will allow project managers to refer to the conditions in which the implementation of a specific facility is planned. The assumption was made that the method, relatively easy to implement, supported by an appropriate computational program, will encourage teams planning the implementation of railway undertakings to its application and will improve the reliability of the schedules they develop.
Effect of Geometric Imperfections in the Shape of Buckling Form on the Reduction of Load Capacity of Cylindrical Shell
Authors: Schabowicz K. , Zawiślak Ł. 
Published: October 2019

AbstractThe approach to numerical analyses was changed by the introduction of Eurocodes. The EN 1993-1-6 standard allows taking into account imperfections on the shape of a buckling form from a linear elastic bifurcation analysis. The article analyses the first ten forms of imperfection from a linear elastic bifurcation analysis on the reduction of the capacity of a cylindrical shell. Calculations were made using finite element methods.
Comparative Analysis of the Empirical Seismic Vulnerability of Typical Structures in Multiple Intensity Zones
Authors: Li S. Q. , Yu T.L. , S Chen Y. 
Published: October 2019

AbstractTo study the difference in seismic vulnerability of multiple typical structures in multiple intensity zones, the seismic damage of 7099 buildings of Dujiangyan masonry structure (MS), reinforced concrete structure (RC) and bottom frame seismic wall masonry (BFM) in the 2008 Wenchuan earthquake in China is summarized and analysed. First, a statistical analysis of the data is carried out, the empirical seismic vulnerability matrix and model curves are established by considering the number of storeys, the age and the fortification factors. The vulnerability curves of the cumulative exceeding probability of the empirical seismic damage and the grade of the seismic damage in multiple intensity zones are shown. The mean damage index vulnerability matrix model is proposed and verified using the empirical seismic damage matrix of typical structures.
KARAKTERISTIK MARSHALL LAPISAN AUS ASPAL BETON MENGGUNAKAN AGREGAT TERSELIMUT LIMBAH PLASTIK LDPE (LOW DENSITY POLYETHYLENE)
Authors: Setyarini Ni Luh Putu Shinta Eka , Tajudin Anissa Noor , Pratama Joseph 
Published: October 2019

Jalan merupakan infrastruktur penting untuk pergerakan manusia, barang dan meningkatkan perekonomian nasional, namun sebagian besar jalan berperkerasan lentur mengalami kerusakan akibat kualitas dari materialnya yaitu aspal dan agregat. Aspal adalah bahan yang tidak terbarukan sehingga akan habis akibat dari penggunaan secara terus menerus. Sehingga diperlukan bahan alternatif sebagai pengganti aspal untuk melapisi agregat yang berfungsi untuk mengurangi erosi. Salah satu bahan alternatif yang bisa digunakan untuk menutupi permukaan agregat adalah limbah plastik Low Density Polyethylene (LDPE). Limbah plastik LDPE yang digunakan sebanyak 1% - 6% dari berat keseluruhan agregat di dalam campuran. Limbah plastik LDPE dibuat dalam bentuk potongan kecil plastik dengan ukuran benda uji dibuat berdiameter 4 " dan tinggi 2,7" dalam bentuk silinder. Pengujian Marshall dilakukan pada semua benda uji. Penambahan limbah plastik LDPE dapat meningkatkan stabilitas hingga 66,70% dan menurunkan kadar aspal hingga 2,5% dibandingkan campuran aspal beton tanpa campuran limbah plastik. Roads are important infrastructure for the movement of people, goods and improving the national economy, but most flexible pavement roads suffer damage due to the quality of their material, namely asphalt and aggregate. Asphalt is a non-renewable material that will run out as a result of continuous use. So we need an alternative material as a substitute for asphalt to coat the aggregate which serves to reduce erosion. One alternative material that can be used to cover aggregate surfaces is Low Density Polyethylene (LDPE) plastic waste. The LDPE plastic waste used is 1% - 6% of the total weight of the aggregate in the mixture. LDPE plastic waste is made in the form of small pieces of plastic with the size of the test specimen made in diameter 4 "and height 2.7" in cylindrical form. Marshall testing is carried out on all test specimens. The addition of LDPE plastic waste can increase stability up to 66.70% and reduce asphalt content up to 2.5% compared to concrete asphalt mixture without plastic waste mixture.
Felsefe ve Tasavvuf
Authors: Avcılar Fatma Sinem 
Published: October 2019

“Felsefe ve Tasavvuf” başlıklı çalışma daha önce değişik vesilelerle ele alınmış olan makale, bildiri ve mülakatlardan oluşmaktadır. Yazar, kitapta yer alan metinlerin gayesini, kültür ve medeniyetimizin temel kurumlarından olan tasavvuf ve onun ekseninde oluşan değerleri irdelemek niyeti ve gayreti olarak ifade etmektedir. Bu bağlamda Mevlana, Yunus Emre gibi mutasavvıflar; Camus, Bergson gibi filozoflarla birlikte değerlendirilmiştir. Böyle bir karşılaştırmalı ele alışın yanı sıra; tasavvufun güncel sorunlara verebileceği cevapların bugün için bir kaynak ve ufuk olarak değerlendirilmesi gibi özgün denemeler bulunmaktadır. Mutasavvıfların eskimeyen bir dünya görüşüne sahip oldukları, tasavvufi tefekkürün dünya sorunlarına her dem taze bir cevap olduğu tezi okuyucunun dikkatine sunulmaktadır.
O uso de simulações computacionais em Farmacologia
Authors: Barros Walleska Bismaida Zacarias Galvão 
Published: October 2019

Resumo: O uso de simulações computacionais é uma estratégia didática que pode ser utilizada no ensino superior e se organiza de maneira que os alunos aprendam em uma situação similar a real. Aproxima os conceitos trabalhados em sala de aula da realidade, facilitando o aprendizado do aluno. Apresenta como vantagens a facilidade da aquisição de conceitos, a substituição de laboratórios experimentais, o aprendizado sem riscos e o fato de atrair a atenção do aluno. Como dificuldades, têm-se: necessidade de ambiente simulado, planejamento cuidadoso e necessidade de conhecimento de informática tanto pelo aluno quanto pelo professor. Essa estratégia pode ser utilizada na disciplina de Farmacologia, evitando o uso de animais em experimentos e o gasto com laboratórios experimentais. Alguns simuladores que podem ser utilizados nessa disciplina e estão disponíveis para download na Internet, são: PharmaCal, Rat Cardiovascular System, The Virtual Cat, The Virtual Twitch e The Virtual NMJ. Palavras-chave: Simulações. Ensino Superior. Farmacologia.
Transformando a atividade de formação de professores/as de inglês: o uso da plataforma Fazgame para o ensino e formação de professores no contexto do PIBID
Authors: Kadri Michele Salles El 
Published: October 2019

Resumo: Há algum tempo profissionais da educação se deparam com as diferenças entre o que chamam de mundo fechado e enciclopédico das escolas e o mundo dinâmico e sem fronteiras dos meios de comunicação. Afirmar, portanto, que estamos na era da informação e que a produção de conhecimento é intensa e rápida, não é novidade. No entanto, este fato impõe aos professores a necessidade de assumir novas posturas e novas práticas pedagógicas. Documentos oficiais para o ensino de línguas têm reconhecido essa realidade ao enfatizar que os novos currículos precisam incorporar o letramento digital como parte dos objetivos para se aprender uma língua estrangeira (BRASIL, 2006). Desta forma, reconhece-se a inter-relação entre as linguagens produzidas pelas novas tecnologias e o domínio da língua inglesa. Essa questão, portanto, tem sido incorporada nas propostas práticas de programas públicos, como por exemplo, o Pibid. Desse modo, este trabalho objetiva apresentar uma proposta em andamento com o uso de vídeo games por meio da plataforma FazGame para o ensino de línguas no contexto do Pibid. Trata-se, portanto, de um relato de uma experiência sobre a educação digital de professores de língua inglesa em formação inicial. Está baseado em uma metodologia de game based learning. A experiência nos permitiu a) reconhecer que a plataforma apresenta potencialidades e limitações no que seu refere a seu uso para o ensino de língua inglesa; b) que poucos professores dominam vídeo-games e c) que alunos da escola pública avaliam o aprendizado por meio de games como sendo motivador. Palavras-chave: Vídeo-games. Ensino de língua inglesa. Formação de professores.
Formação docente inicial na modalidade educativa a distância: memórias de egressos dos cursos de Letras/Português
Authors: Souto Paulo Heimar , Sobral Maria Neide , Soares Tathiana Santos , Souza Isabella Tatyane de Lima 
Published: October 2019

A formação inicial de professores na modalidade a distância no Brasil foi instituída em 2006, com a implementação da Universidade Aberta do Brasil em várias instituições públicas de ensino superior. No Estado de Sergipe, a oferta de cursos de licenciaturas se deu pelo Centro de Educação Superior a Distância (CESAD), da Universidade Federal de Sergipe (UFS). Foram ofertados sete cursos de licenciatura, a saber: Letras/Português, Matemática, Biologia, Química, Física, Geografia e História. Em 2012, apenas 03 cursos tiveram concludentes, sendo 02 de Química, 11 de Letras/Português e 40 de História. Este estudo procurou compreender o processo de formação dos(as) egressos em Letras/Português na modalidade educativa a distância. Trata-se de uma investigação pautada na abordagem qualitativa, com a utilização da metodologia história oral temática, mediante o recolhimento de narrativas orais. São testemunhos significativos sobre as experiências formativas dos egressos, traduzindo suas experiências ao longo dos cursos e os desdobramentos ocorridos após a conclusão dos mesmos. As narrativas colhidas e analisadas indicam as dificuldades e as superações na formação inicial a distância.Palavras-chave: formação inicial. Formação de professores. Educação a distância
Jogos digitais e aprendizagem: uma discussão sobre as possibilidades do trabalho pedagógico com crianças na Educação Infantil
Authors: Zogaib Simone Damm , Santos Solange dos 
Published: October 2019

O presente trabalho tem como objetivo analisar a relação entre a utilização dos jogos digitais e a aprendizagem das crianças na escola, verificando as possibilidades pedagógicas em sala de aula. Para alcançar o objetivo proposto utilizou-se a pesquisa de natureza bibliográfica, em obras de diversos autores sobre a importância e influência que os jogos digitais têm na aquisição de conhecimentos e no prazer de aprender da criança. Procedeu-se também um estudo exploratório inicial dos jogos digitais mais utilizados pelas crianças de uma turma de primeiro ano do ensino fundamental a fim de verificar as possibilidades educativas desses games. Ao finalizar esse estudo, podemos afirmar que os jogos digitais podem contribuir para o processo de aprendizagem das crianças na escola, desde que os professores e a escola estejam cientes dessas potencialidades e dispostos a trabalhá-las de forma intencional e planejada. Infere-se também o papel primordial do professor como mediador na relação criança/jogo/aprendizagem.Palavras-chave: Processo de aprendizagem. Jogos Digitais. Formação do Professor.
Expediente Revista EDaPECI
Authors: Revista EDaPECI Expediente 
Published: October 2019

Revista EDaPECI - Educação a Distância e Práticas Educativas Comunicacionais e Interculturais / Universidade Federal de Sergipe, São Cristóvão (SE). Revista EDaPECI, São Cristóvão (SE), v.15. n. 3, p. 418-702, set. /dez. 2015. Quadrimestral ISSN: 2176-171X
Evidence of Radical Intermediate Generated in the Electrochemical Oxidation of Iodide
Authors: Fernando Ashantha , Parajuli Suman , Barakoti Krishna K. , Miao Wujian , Alpuche Aviles Mario A 
Published: October 2019

We present evidence of the generation of radical ion formation during the oxidation of iodide on a fluorine doped tin oxide (FTO) electrode in acetonitrile. The cyclic voltammograms for the oxidation of iodide and triiodide on FTO are significantly different as in the case of the oxidation of Pt electrode. These differences are assigned to kinetic differences on the FTO surface that require significant over potentials to drive the oxidation of iodide and triiodide. We propose that at the highly positive potentials the iodine radical intermediate, I·, becomes thermodynamically stable at FTO. The radical nature of the intermediate was verified by the formation of radicals of the usual traps of 5,5-dimethyl-1-pyrroline N-oxide (DMPO) and 2,2,5,5 tetramethyl-1-pyrroline N-oxide (TMPO) when these were added to an electrolyzed solution. Irradiation of an iodine solution causes the homolytic cleavage of I2 and yields the same radical intermediate with TMPO as in the electrolysis experiment. Similar results were obtained from the electrolysis of bromide solutions upon addition of TMPO. Short term electrolysis (< 1 h) gives triiodide as a final product while long-term electrolysis (> 17 h) yields additional byproducts. Byproducts were determined to be organoiodines by gas chromatography-mass spectrometry (GC-MS). Overall, our results are consistent with iodine atoms reacting with the electrolyte during electrolysis at the FTO electrode and with a sequential two-electron transfer process.
Pengolahan Air Sumur dengan Filter Sistem Backwash di Kelurahan Mariana Kecamatan Banyuasin I
Authors: Fatimura Muhrinsyah , Bakrie Muhammad , Wahyudi Agus , Safentry Aan 
Published: October 2019

<p class="6AbstrakIsi">Air merupakan sumber kehidupan terdiri dari senyawa kimia yang sangat penting bagi kehidupan makhluk hidup di bumi ini. Pemanfaatan air sebagai kebutuhan pokok bagi manusia dengan segala macam kegiatannya, antara lain digunakan untuk: keperluan rumah tangga, misalnya untuk minum, masak, mandi, cuci dan segala kegiatan yang menggunakan air lainnya. Adanya keluhan dari warga Perum Griya Mariana Rt.07 Rw.02 Kelurahan Mariana Kecamatan Banyuasin I Kabupaten Banyuasin akan mutu air yang digunakan sehari-hari yang berasal dari sumur warga, dimana air digunakan untuk mandi terasa lengket dan kalau ditampung di bak penampungan air berubah warna menjadi kemerahan kadang kehitaman serta terasa asam . Hasil analisis awal yang dilakukan dilaboratorium sebelum menggunakan peralatan yang dibuat yaitu: pH 3, Fe 5,98mg/l , kekeruhan 20 Ntu, berbau kondisi ini tidak memenuhi standar air baku mutu kadar maksimun. Berdasarkan Peraturan Menteri Kesehatan Republik Indonesia Nomor.32 Tahun 2017. Perancangan peralatan filtrasi dengan sistem <em>backwash </em>diharapkan<em> </em>dapat mengatasi masalah yang ada. Masyarakat sangat antusias saat pelaksanaan pengabdian masyarakat ini terbukti banyaknya pertanyaan yang diberikan warga pada pemateri dan pada saat pengoperasian peralatan <em>back wash</em> . Hasil pengoperasian filter <em>back wash</em> didapat setelah di analis pH 6,5 , Fe 0,6 mg/l, kekeruhan 3 Ntu, dan tidak bebau. Peralatan ini dapat meningkatkan mutu air baku yaitu air sumur masyarakat.</p>
Peran Komunikasi Sibernetika bagi Keselamatan Penerbangan
Authors: Soebandoro Toto 
Published: October 2019

Penelitian ini bertujuan untuk (1) mengetahui dan mengungkapkan latar belakang pentingnya komunikasi sibernetika dalam penerbangan, khususnya dalam rangka mewujudkan keselamatan penerbangan; dan (2) mengetahui aktivitas pemrosesan informasi dalam pengambilan keputusan oleh Pilot in Command di ruang terbatas ketika pilot mengalami tekanan psikologis akibat keadaan darurat, sementara pilot juga harus melakukan pendaratan darurat. penelitian ini adalah penelitian kualitatif dan menggunakan paradigm postpositivisme. Teknik pengumpulan data dilakukan melalui studi teks dan wawancara mendalam (indepth interview). Adapun analisis data pada penelitian ini dilakukan dengan menggunakan analisis kasus bertingkat, dengan metode multilevel analysis serta model kajian eksploratif. Hasil penelitian memperlihatkan bahwa (1) komunikasi sibernetika merupakan pilar yang penting bagi pilot dalam mewujudkan keselamatan penerbangan; (2) keberhasilan dalam mengoptimalkan komunikasi sibernetika berdampak pada kemampuan pilot dalam mengatasi tekanan psikologis yang dialami sehingga mampu mencari jalan keluar dari keadaan darurat.Kata Kunci: Komunikasi sibernetika, keselamatan penerbangan, pendaratan darurat ABSTRACTThis research aims to (1) find out and reveal the background of the importance of cybernetics communication in flight, particularly in realizing flight safety; and (2) knowing information processing activities in decision making by Pilots in Command in confined spaces when pilots experience psychological pressure due to emergencies, while pilots must also make an emergency landing. This research is qualitative study and uses postpositivism paradigm. Data collection techniques using text studies and in-depth interviews (indepth interview). The data analysis in this study was carried out using multilevel case analysis, with multilevel analysis methods and explorative study model. The results of this research showed that (1) cybernetics communication is an important pillar for pilots in realizing aviation safety; (2) the success in optimizing cybernetics communication has an impact on the ability of pilots to cope with psychological stress experienced so that they are able to find a way out of an emergency situation.Keywords: Cybernetics communication, flight safety, emergency landing
Peran Internet dalam Meningkatkan Jumlah Pekerja Lepas di Indonesia
Authors: Widodo Arif Siaha 
Published: October 2019

Pesatnya perkembangan teknologi informasi dan komunikasi ikut mendorong perkembangan dalam berbagai bidang, tak terkceuali pada sektor perdagangan dan jasa. Hal ini dapat terlihat dari bermunculannya berbagai ecommerce dan marketplace di Indonesia selama satu dekade terakhir ini. Penelitian ini bertujuan untuk mendeskripsikan peran serta kontribusi internet dalam bidang jasa. Penelitian difokuskan kepada pekerja lepas (freelancer) yang tergabung dalam Projects.co.id, marketplace yang mempertemukan pihak pencari jasa dengan para freelancer. Penelitian ini adalah penelitian deskriptif-kualitatif. Menggunakan metode studi kasus, teknik pengumpulan data menggunakan observasi, wawancara dan studi literatur. Hasil penelitian menunjukkan (1) Projects.co.id merupakan medium bagi freelancer di seluruh Indonesia untuk berkomunikasi dengan pemberi kerja; (2) Projects.co.id ikut mengubah persepsi freelancer terkait persepsi mereka sebagai pekerja lepas; (3) Pesatnya perkembangan internet mengubah bagaimana freelancer dan pemberi kerja dalam bertemu dan bertransaksi (cross border transaction) yang sudah tidak lagi terkendala jarak geografis.Kata Kunci: Internet, marketplace, pekerja lepas AbstractThe rapid development of information and communication technology has contributed to the development in various fields, including the trade and services sector. This can be seen from the emergence of ecommerce and marketplaces in Indonesia over past decade. The study focused on freelancers in Projects.co.id, a marketplace that brings together service seekers with freelancers. Using case study method, the data collection techniques use observation, interviews and literature studies. The results showed that (1) Projects.co.id is a medium for freelancers throughout Indonesia to be able to communicate with employers; (2) The presence of Projects.co.id has change the perception of freelancers regarding their perceptions as freelancers; (3) Rapid development of the internet has also changed how freelancers and employers meet and transact (cross border transactions) which no longer constrained by geographical distance. Keywords: Internet, marketplace, freelancer