bluuebunny/crossref_metadata_2025 huggingface dataset:
Optimization of a solar irradiation forecasting tool based on artificial intelligence
Authors: F. Rodríguez  , A. Galarza  , L. Fontán
Published: July 2019

In current electric markets, where many stakeholders can take part, power network operators need accurate predictions of the energy generated by intermittent renewable sources in order to control the whole system. Therefore, the capacity to accurately forecast solar irradiance is key when it comes to the large-scale integration of solar energy generators in the traditional network. One of the challenges, however, consists of providing accurate very short-term predictions (minutes ahead) due to the variability of solar irradiance caused by different meteorological phenomena. This study addresses this need for very short-term forecasts through the development of an irradiance prediction scheme for 10 minutes ahead. The irradiance prediction algorithm is based on a parallel combination of two different layer recurrent networks and has been trained with a two-year historical database of solar irradiance. The accuracy of the proposed tool has been validated through forecasting a whole year using data that is not in the database used in the training step. This tool was then used to forecast the irradiance in two Spanish locations with different weather conditions to analyse whether the accuracy changes. The accuracy between predicted and actual values demonstrates that this tool outperforms similar forecasters.
Shape optimization of a multi-element hydrofoil for hydrokinetic turbines using response surface methodology
Authors: Rubio-Clemente A  , Aguilar J  , Chica E
Published: July 2019

This paper describes the optimization procedure of a two-dimensional multi-element hydrofoil shape during its design for small horizontal axis hydrokinetic turbines using response surface methodology. JavaFoil software was used for describing the hydrofoil performance under several combinations of geometrical parameters, such as the horizontal space (overlap), h, between the drag edge of the main element and the leading edge of the second element; the vertical distance (gap), d, of the flap from the main element trailing edge; and the flap deflection angle, δ. Different experimental designs aiming at the maximization of the lift-to-drag ratio were used. The maximal lift-to-drag ratio was found to be 69.9626 for d, h and δ equal to 2.0%, 18.4619% and 20°, respectively, being δ the factor exerting a considerable influence on the response variable.
Islanding Detection Method for Inverter-Based Distributed Generation by Injecting Second Order Harmonic Current
Authors: Byung-Moon Han
Published: July 2019

This paper proposes a new islanding detection scheme for the inverter-based distributed generator by injecting negligible amount of the 2nd order harmonic current. A proportional resonant controller was used for the output current control of the inverter, and a proportional resonant filter was used for extracting the 2nd order harmonic voltage at the point of common coupling (PCC). The islanding state can be detected by measuring the magnitude ratio of the 2nd order harmonic voltage to the fundamental voltage when the 2nd order harmonic current with 0.8% magnitude is injected.
Operation of small isolated power system with large non-controllable RES penetration – System Operator’s experience in El Hierro Island
Authors: R. Corujo  , P. Santos  , R. Ascanio
Published: July 2019

The Canary Islands are facing a transitiontowards renewable energy, in an attempt to build a cleaner and cheaper power system for the coming years. This transition poses a big challenge for the TSO that will face the operation of weak grids, with a large amount of non-controllable generation, in a context of reduced natural inertia. In this context the methodology and operational criteria of El Hierro’s power system, operated by the TSO, are to maximize the amount of renewable energy in a safe way, minimizing the risks associated with the unpredictability of wind-power, and to do so minimizing the electrical power generation cost. This paper shares the REE experience in the operation of a small isolated power system with large non-controllable RES that, as a result, has established a new record in 2018, where the the pumped storage hydro facility named Central Hidroeólica de El Hierro (CHE) covered the complete island’s demand during 18 consecutive days, more than two weeks where the diesel power plant was completely off and the island was therefore 100% renewable.
Comparison of the performance of different mixing ventilation configurations in particle removal from indoor spaces
Authors: C. Habchi  , K. Ghali  , N. Ghaddar2
Published: July 2019

Re-suspended particles  from indoor sufaces present a real  threat  to  occupants.  The  ventilation  system  plays  a primordial  role  in  enhancing  the  indoor  air  quality.  A CFD  model  was  developed  to  compare  particle  removal effectiveness     of     variable     mixed     air     distribution configurations.  A  parametric  study  was  performed  to assess the effect of two main factors affecting the airflow pattern:   the   relative   inlet/outlet   location   and   suction velocity. It was found that the mixing ventilation configuration with floor outlets located at middle of the walls presented the  best  performance  due  to  the  creation  of  a  suction effect  covering  the  majority  of  the  floor  area  leading  to high  removal  effectiveness.  Furthermore,  increasing  the suction  velocity  strengthened  the  suction  effect  resulting in  better  particle  removal  by  the  escape  of  a  larger number of particles generated at floor level.
State estimation for large power distribution systems
Authors: Dr. J. Besada-Juez  , A. González-Bordagaray  , J. Ferro-Vázquez  , G. Plaza-González
Published: July 2019

This article presents the modifications and improvements that have been included over the classic formulation of the state estimation to be able to run in real networks with large power distribution systems. Improvements include a new penalty term that keeps bus consumption or power generation within an allowed band and the inclusion of dynamic elements such as voltage regulators and capacitor batteries. A complete algorithm is presented that is capable of operating on large power systems in near real time. This algorithm and the results have been tested with numerous cases of real distribution networks covering large geographical areas, obtaining very good results and demonstrating the enormous usefulness of this approach.
Energy harvesting approaches in IoT scenarios with very low ambient energy
Authors: A. Lopez-Martin  , J.M. Algueta  , I.R. Matías
Published: July 2019

The feasibility of multi-source energy harvesting in Internet of Things (IoT) scenarios with low and intermittent ambient energy is addressed. As a relevant case study, application to a smart cargo container system is analysed. The most relevant features of the main energy sources available in this target application are identified, and various transducers adapted to such sources are evaluated. Measurement results indicate that combined piezoelectric and thermoelectric generation inside cargo containers can significantly extend the battery lifetime of IoT end nodes embedded in such containers.
Reduction of Electrical Losses’ Analysis on Distribution Systems with Distributed Generation and Energy Storage Systems
Authors: N.M. Neto  , M. R. C. Albertini  , W. B. De Melo  , M. V. B. Mendonça  , A. J. P. R. Júnior  , F. A. M.  Moura  , J. R. Camacho
Published: July 2019

The  increasing  use  of  distributed  generation  inthe  Electric  Power  Systems  has  brought  these  several  problems, since the controllers of these systems must take into account one more variable for any decisions. Within this context, there was a special emphasis on the use of electric energy storage systems to reduce  losses,  with  the  allocation  of  them  as  a  load  at  the  over-generation  points  and  to  reduce  system  losses  at  peak  demand points.   This   article   presents   an   analysis   of   the   distributed generation to compare the electrical losses using electrical energy storage.   The   technique   used   to   estimate   the   electric   energy generation  of  a  photovoltaic  system  in  one  day,  according  to temperature  and  irradiation data, was  the  application of  artificial neural  networks.  Thus,  the  storage  element  appropriate  to  the demand and generation levels was first defined and the OpenDSS tool  was  used  to  perform  the  study  of  the  load  flow  and  to measure the effect of the use of these storage systems in the IEEE 37  bus  network.  Using  energy  storage  in  this  application  has proved to be advantageous, reducing the losses of active power at the peaks and reducing over-generation during the day, measured as crucial for the future of the distribution.
Evaluation of a Local Fault Detection Algorithm for HVDC Systems
Authors: M.J. Perez-Molina  , P. Eguia-Lopez  , D.M. Larruskain-Eskobal  , M. Santos-Mugica  , R.  Rodriguez-Sanchez
Published: July 2019

A great increase in the amount of energy generated from clean and renewable sources integrated in the electric power system is expected worldwide in the coming years. High Voltage Direct Current (HVDC) systems are seen as a promising alternative to the traditional Alternating Current (AC) systems for the expansion of the electric power system. However, to achieve this vision, there are some remaining challenges regarding HVDC systems which need to be solved. One of the main challenges is related to fault detection and location in HVDC grids. This paper reviews the main protection algorithms available and presents the evaluation of a local fault detection algorithm for DC faults in a multi-terminal Voltage Source Conversion (VSC) based HVDC grid. The paper analyses the influence of the DC voltage sampling frequency and the cable length in the performance of the algorithm.
Performance of 1.4 kW Grid connected desert type PV
Authors: A. H. Al-Badi
Published: July 2019

This paper analyzes the performance of desert type photovoltaic 1.4 kWP grid connected plant. The system was installed in College of Engineering, Sultan Qaboos University, Oman and was monitored since April 2012. The experimental results show that the total measured annual energy produced was 2217.6 kWh with average system efficiency of 15% for the first year. The average capacity factor for the system was 17%.
Radial Basis Function for Solar Irradiance Forecasting in Equatorial Areas
Authors: Marcello Anderson F. B. Lima  , Paulo C. M. Carvalho  , Arthur P. de S. Braga  , Renata I. S. Pereira  , Sandro C. S. Jucá  , Luis M. Fernández-Ramírez  , Josileudo R. Leite
Published: July 2019

Photovoltaic (PV) solar generation is gaining an increasing attention due to technological advances such as higher efficiency and life of PV cells and cost reduction. Due to its vast territory, Brazil is composed of regions that can explore renewable energy sources for electricity generation, and the solar resource is found satisfactorily in several areas of the country. This article presents a solar irradiance prediction mechanism developed using data collected in Fortaleza-CE, Brazil. Due to the fact of its characteristic of unpredictability for this resource, many researchers look for several methods to take the generation of this type of energy. The predictions were performed using a Radial Basis Function (RBF) a computational model based on the human nervous system, it is a technical and effective for time series forecasting, which is a relatively complex problem, Artificial Neural Network (ANN) with the advancement of 1 hour. In the ANN performance, a total of 34.4% forecasts underestimated solar energy availability, 7% of the forecasts obtained error 0 and 58.6% of forecasts overestimated the solar resource. A total of 62.33% of forecasts was between -10% and 10% of forecast error. The prediction mean error was 5.93% and the Mean Absolute Percentage Error (MAPE) was 11.43%.
Women and Logic
Authors: Beiküfner Karin , Reichenberger Andrea
Published: July 2019

Beiküfner’s report reflects on woman’s place in the history of logic. These reflections date back to a larger research project entitled Case Studies Towards the Establishment of a Social History of Logic (1985–1989). The project was initiated under the direction of Professor Christian Thiel, University of Erlangen-Nuremberg, and funded by the German Research Foundation DFG. The main focus of the Erlangen research project was laid in the historical analysis of the emergence of modern logic in Great Britain and Germany during the 19th and early 20th century. This research prompted the discovery of a series of important female authors in the Anglophone and German speaking area. This led, firstly, to the question of what might be gained from the research results for the project’s objectives and, secondly, to a closer examination of the methodological demands and problems of a feminist historiography of science.
After American Studies
Authors: Izquierdo David Lorenzo
Published: July 2019

Book reviewHerlihy-Mera, Jeffrey. After American Studies: Rethinking the Legacies of Transnational Exceptionalism. New York: Routledge, 2018. 188 p.
Analisis Tax Expenditure dalam Rangka Impor dari Perspektif Pro-Corporate Cash Flow Tax
Authors: RAHMAWATY WIDDYA , Rosdiana Haula
Published: July 2019

Pengelolaan tax expenditure menjadi hal penting dalam keuangan negara karena tax expenditure memiliki konsekuensi langsung terhadap hilangnya pendapatan negara. Pemerintah menerbitkan Laporan Belanja Perpajakan di tahun 2018, tetapi laporan tersebut belum menyajikan seluruh jumlah insentif pajak dalam rangka impor yang diberikan. Berdasarkan hasil analisis melalui pengumpulan data dengan menggunakan studi pustaka dan wawancara mendalam, dapat disimpulkan bahwa pemerintah telah memiliki kebijakan yang jelas mengenai pemberian insentif pajak dalam rangka impor serta adanya benchmark tax untuk setiap jenis pajak. Namun, dalam praktiknya, benchmark tax menimbulkan ambiguitas sehingga sulit mengidentifikasi fasilitas perpajakan yang dapat menimbulkan tax expenditure untuk pajak dalam rangka impor. Penilaian dampak terhadap pemberian insentif pajak dalam rangka impor belum dilakukan sehingga tidak dapat diketahui efektvitas dan efisiensi dari pemberian insentif pajak tersebut. Meskipun demikian, pemberian insentif pajak dapat mendukung konsep pro-corporate cash flow tax. Namun di sisi lain menimbulkan compliance cost yang tinggi. Untuk mengoptimalkan pengelolaan tax expenditure, maka pemerintah perlu mengkaji ulang benchmark tax khususnya dalam menentukan PPh Pasal 22 impor serta melaksanakan debirokratisasi pengurusan impor yang mendapat fasilitas PDRI.
Skrining Ketajaman Penglihatan pada Siswa SDN
Authors: Husna Hanna Nurul , Widia Chita , Widia Chita
Published: July 2019

Gangguan pada mata akan menyebabkan gangguan penglihatan yang berdampak pada ketidaknyamanan dan gangguan lainnya dalam menjalani aktivitas sehari-hari. WHO menyatakan sebanyak 19 juta anak-anak yang berusia di bawah 15 tahun diperkirakan mengalami gangguan penglihatan dan 12 juta di antaranya disebabkan oleh kelainan refraksi mata. Kegiatan pengabdian masyarakat ini merupakan salah satu bentuk dukungan terhadap Peta Jalan Penanggulangan Gangguan Penglihatan 2017-2030 dan salah satu upaya dalam mencegah gangguan penglihatan pada anak. Kegiatan yang dilakukan adalah skrining pemeriksaan visus ataupun koreksi bagi siswa SD kelas 3 dan 4 yang disertai dengan pemberian informasi mengenai pentingnya menjaga kesehatan mata dan melakukan. Tujuan dari skrining visus ini adalah untuk mengetahui gambaran kelainan refraksi mata pada siswa SD. Lokasi skrining kelainan refraksi dilaksanakan di SDN 1 Cikalang Kecamatan Tawang Kota Tasikmalaya. Subjek adalah siswa kelas 3 dan 4 dalam rentang umur 8-9 tahun yang diduga tidak mengalami kelainan refraksi. Skrining visus dilakukan dengan menggunakan Optotipe Snellen dan dikoreksi dengan menggunakan lensa coba/trial lens. Pelaksanaan kegiatan pengabdian masyarakat ini berlangsung dengan lancar dan efisien. Pada siswa kelas 3 (8-9 tahun) terdapat 10 siswa (24%) yang mengalami kelainan refraksi, kelas 4A (9-10 tahun) terdapat 8 siswa (20%) yang mengalami kelainan refraksi, dan di kelas 4B terdapat 6 siswa (14%) yang mengalami kelainan refraksi. Kegiatan ini diharapkan dapat menumbuhkan motivasi dan kesadaran siswa dan orang tua untuk melakukan pemeriksaan rutin pada mata sejak dini.Kata Kunci :       Kelainan refraksi, kesehatan mata, skrining.
Pendampingan Posyandu Lanjut Usia
Authors: R Arnis Puspitha , Nurdin Nurhaya , Saleh Umniyah
Published: July 2019

Kota Makassar memiliki jumlah lanjut usia (lansia) terbanyak kedua di Sulawesi Selatan yaitu sebanyak 79.581 jiwa. Salah satu kelurahan di kota Makassar yaitu kelurahan Paccerakkang Kecamatan Biringkanaya terdapat  487 jiwa lansia yang tersebar di 8 RW. Sembilanpuluh persen lansia mengalami hipertensi, rheumatoid arthritis, infeksi saluran pernapasan atas, diabetes mellitus, gastritis, dan stroke, penglihatan kabur yang menyebabkan risiko jatuh, tetapi belum mendapat pelayanan kesehatan yang memadai. Selain itu, posyandu lansia di 3 RW masih bergabung dengan Posyandu balita, jumlah kunjungan lansia pun masih sangat rendah, sementara 5 RW lainnya belum memiliki Posyandu lansia. Selain itu jumlah petugas kesehatan sangat terbatas yakni hanya 1 orang. Dengan demikian, pelaksanaannya belum berfungsi optimal, bahkan tidak mampu menyentuh kebutuhan para lansia. Tujuan pendampingan Posyandu ini untuk meningkatkan kesejahteraan lansia, baik fisik maupun psikologis, melalui kegiatan Posyandu lansia yang mandiri. Metode kegiatan ini dilaksanakan dalam tiga tahap yaitu pelatihan kader kesehatan lansia, pembentukan kelompok kerja (pokja) lansia, dan pendampingan pelaksanaan Posyandu lansia sistem 5 meja. Hasil dari kegiatan ini adalah adanya peningkatan pengetahuan yang cukup tentang kesehatannya, dapat mempertahankan kebugaran dan kesehatan fisik serta kesehatan psikologisnya. Posyandu lansia ini berdampak pada peningkatan derajat kesehatan baik fisik maupun psikologis dan usia harapan hidup lansia sehingga dapat mencapai masa tua yang bahagia dan berdaya guna dalam kehidupan keluarga dan masyarakat. Kata kunci: Hidup Sehat, lanjut usia, posyandu.
Penyuluhan tentang Bahaya Merokok pada Siswa SMAN 2
Authors: Amira Iceu , H Hendrawati , Senjaya Sukma
Published: July 2019

Perilaku merokok menjadi permasalahan, baik secara lingkungan maupun individu. Artinya perilaku merokok selain disebabkan faktor  dari dalam diri juga disebabkan oleh lingkungan, salah satunya adalah teman sebaya   yang     pada  tahap awal mempengaruhi untuk melakukan merokok  (46%),  seorang anggota keluarga bukan orang tua (23%), dan orang tua (14%). Tujuan kegiatan ini agar siswa  memahami upaya pencegahan bahaya merokok, mensosialisasikan kepada sekolah dan masyarakat. Metode dari kegiatan ini untuk  memberikan penyuluhan kesehatan tentang bahaya merokok, sasarannya semua siswa SMAN 2 Kabupaten Garut. Kegiatan ini dimulai dengan  membuat perencanaan, pelaksanaan, evaluasi, hingga penyusunan laporan. Hasil kegiatan berdasarkan pengukuran pengetahuan melalui pre dan post test. Hasil pre test 41 % siswa tidak mengetahui mengenai bahaya merokok, 43 % tahu sebagian, dan 12 % memahaminya. Dari 15 pertanyaan jawaban yang salah, paling banyak pertanyaan berkaitan dengan  bahaya merokok dan penyakit /dampak dari perokok aktif  serta perokok pasif. Setelah materi di sampaikan kemudian melaksanakan post test bertujuan untuk mengetahui sejauh mana perubahan pengetahuannya siswa-siswi setelah mendapatkan materi, diikuti 159 siswa/ peserta ,dengan hasil sebagai berikut:    nilai 95 sebanyak 3 orang, nilai 90 sebanyak 13 orang, dan nilai 85 sebanyak 22 orang,   nilai 82 sebanyak 25 orang, nilai 80 sebanyak 22 orang ,  nilai 77 sebanyak 25 orang, nilai 75 sebanyak 18 orang, nilai 70 sebanyak 14 orang dan  nilai 60 sebanyak 17 orang. Dilihat dari hasil post test ,tujuan tercapai , hampir 90 % siswa / siswi SMA Negeri 2 kabupaten Garut mengetahui mengenai bahaya merokok , hasil dari pre test ke post test ada kenaikan sebesar 47 %. Kata kunci: Bahaya Merokok, penyuluhan, siswa.
Aktivitas Riset CNN Indonesia dalam Penyelenggaraan Special Event Meet Up “Positive Generation”
Authors: Yurita Ayu Puspa , Hafiar Hanny , Budiana Heru Ryanto
Published: July 2019

Penelitian ini bertujuan untuk mengetahui pelaksanaan riset dalam kegiatan special event yang dilakukan oleh CNN Indonesia dalam menyelenggarakan Meet Up “Positive Generation” untuk menghasilkan revenue perusahaan, serta untuk meningkatkan kesadaran generasi milenials terhadap CNN Indonesia. Penelitian ini menggunakan tahapan riset pada Event Management Process Joe Goldblatt sebagai landasan konsep. Penelitian ini adalah penelitian kualitatif dengan pendekatan studi deskriptif. Teknik pengumpulan data yang dilakukan dengan wawancara mendalam, observasi partisipan pasif, dan studi kepustakaan, dengan teknik pengumpulan key informan purposive sampling. Teknik analisis data menggunakan tiga tahap yaitu reduksi data, penyajian data, serta penarikan kesimpulan.Hasil penelitian ini mengemukakan bahwa proses riset yang dilakukan CNN Indonesia diperoleh berdasarkan data lapangan yang didapat melalui observasi langsung saat event berlangsung, maupun wawancara mendalam dengan pihak-pihak yang terlibat langsung dalam proses riset event Meet Up “Positive Generation” yang diselenggarakan oleh CNN Indonesia. Sebagai penyelenggara Meet Up “Positive Generation”, CNN Indonesia melakukan riset terlebih dahulu untuk mengetahui kebutuhan dan keinginan target sasaran. Bentuk riset yang dilakukan penyelanggara Meet Up “Positive Generation” adalah menentukan pembicara-pembicara yang akan mengisi event Meet Up “Positive Generation” berdasarkan online riset melalui akun Instagram ataupun You Tube. Selain itu juga menentukan kampus-kampus mana saja yang dapat dijadikan tempat pelaksanaan untuk diadakannya event Meet Up “Positive Generation”.
El trabajo doméstico: de la Rerum Novarum a la Amoris Laetitia
Authors: Hurtado Domínguez Rafael
Published: July 2019

Resumen:En el presente estudio se explorará el tema del trabajo doméstico a la luz del Magisterio de la Iglesia Católica, el cual ha pasado de proteger explícitamente el modelo de familia tradicional constituido por el varón-proveedor y la mujer-ama de casa, a exponer de modo preferente los retos del nuevo modelo de familias con doble-sueldo. El análisis abordará las contribuciones originales de la Rerum Novarum, la Quadragesimo Anno, la Laborem Exercens y la Familiaris Consortio en relación al tema citado, para contrastarlo con los desarrollos más recientes que trajo consigo la Caritas in Veritate y principalmente la Amoris Laetitia. Palabras Clave: Salario Familiar Suficiente, Trabajo Doméstico, Amoris Laetitia, Hogar Familiar.
Oppy, Graham, Atheism and Agnosticism (Elements in the Philosophy of Religion), Cambridge: Cambridge University Press, 2018, 72p
Authors: Sánchez Altamirano Juan José
Published: July 2019

In recent years, the phenomena of atheism and agnosticism have become more common in the Western culture. While there has been a rise in the phenomenon itself, there has also been an outgrow in the misunderstandings of what these terms really mean. In this specific sense, I believe Graham Oppy has done a splendid job in Atheism and Agnosticism suggesting clearly where to draw the line between atheism, agnosticism and theism. Thus, he states the meaning of all three positions very clearly.
Effect of randomly distributed polypropylene fiber reinforcement on the shear behavior of sandy soil
Authors: Benziane Mehdi Missoum , Della Noureddine , Denine Sidali , Sert Sedat , Nouri Said
Published: July 2019

The inclusions of geosynthetic materials (fibers, geomembranes and geotextiles) is a new improvement technique that ensures uniformity in the soil during construction. The use of tension resisting discreet inclusions like polypropylene fibers has attracted a significant amount of attention these past years in the improvement of soil performance in a cost-efficient manner. A series of direct shear box tests were conducted on unreinforced and reinforced Chlef sand with different contents of fibers (0, 0.25, 0.5 and0.75%) in order to study the mechanical behavior of sand reinforced with polypropylene fibers. Samples were prepared at three different relative densities 30%, 50% and 80% representing loose, medium dense and dense states,respectively, and performed at normal stresses of 50, 100 and 200 kPa. The experimental results show that the mechanical characteristics are improved with the addition of polypropylene fibers. The inclusion of randomly distributed fibers has a significant effect on the shear strength and dilation of sandy soil. The increase in strength is a function of fiber content, where it has been shown that the mechanical characteristics improve with the increase in fiber content up to 0.75%, this improvement is more significant at a higher normal stress and relative density.
Occupational exposure to dust in road construction, earthworks and open-pit mining – a scoping review protocol
Authors: Duarte J. , Vaz Mário , Torres Costa J. , Santos Baptista J.
Published: July 2019

The exposure to respirable particulates poses a significant threat to human health globally. Several occupational activities can contribute to this problem, being open-pit mining and related activities such as road construction and earthworks some examples. This systematic review protocol outlines the main procedures to conduct a scoping review which aims to identify the most adequate variables to plan safety since the design safe. To accomplish this primary objective, some secondary objectives were defined as well. The journals and databases considered more relevant were selected (i.e. Scopus, Web of Science, and Science Direct) and a set of keywords was defined to the latter sequenced combination. The selection process of the articles is also described, in an attempt to contribute to further research on this field. Every methodology is documented and supported by the PRISMA Statement adapted to the scoping review process. All of the data treatment is detailed, including the risk of bias and attempts to manage it.
Driving simulator for evaluating the effects of road geometric design on driver behavior
Authors: Bobermin Mariane Paula , Silva Melissa Mariana , Ferreira Sara , Guedes J. C. C. , Baptista J. Santos
Published: July 2019

The traditional approach adopted towards road safety is the analysis of risk factors that contribute to frequency or severity of traffic crashes. Many distinct elements play a role, simultaneously, in a crash occurrence, and, undoubtedly, geometric design of highways and its effect on human behavior are part of that equation. A valuable tool to investigate this interaction is the driving simulator. Nevertheless, experiment design, participants’ features, and data acquisition are detrimental factors for the effective use of this tool. This systematic review protocol is based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols (PRISMA-P) Statement and presents a method to find evidence on driving simulator studies of road geometry effects on drivers´ behavior.
PENENTUAN PARAMETER EMBOSSING KULIT SINTETIS PVC DENGAN MENGGUNAKAN HIGH FREQUENCY WELDING SHENZEN HIPOWER
Authors: Fransiscus Hanky , Karyoko Cyntiarani Karyoko , Arthaya Bagus Made
Published: July 2019

Industri kreatif memiliki kontribusi yang besar bagi perekonomian Indonesia, membuka lapangan kerja baru, serta memperkuat citra dan identitas bangsa. Salah satu bagian dari industri kreatif adalah pengrajin kulit. Produk yang dihasilkan oleh pengrajin cukup bervariasi, seperti dompet, sepatu, tas, dll. Material kulit yang digunakan berupa kulit asli atau kulit sintetis. Salah satu proses dalam menghasilkan produk-produk tersebut adalah embossing untuk membentuk pola hias atau merk. Embossing dapat dilakukan dengan dengan high frequency welding. High frequency welding merupakan penyatuan material dengan menggunakan energi elektromagnetik frekuensi tinggi untuk menghasilkan panas pada material polar sehingga meleleh dan menghasilkan bentuk seperti yang diinginkan setelah proses pendinginan. Laboratorium Proses Produksi Program Studi Teknik Industri memiliki mesin high frequency welding yang dapat digunakan sebagai materi praktikum serta membantu pengrajin kulit kota Bandung, khususnya pengrajin kulit Cibaduyut untuk menghasilkan emboss yang baik. Embossing kulit sintetis dan kulit asli memerlukan parameter proses yang berbeda, hal ini disebabkan sifat fisik setiap jenis kulit. Oleh karena itu diteliti parameter yang tepat untuk menghasilkan emboss kulit sintetis. Penelitian ini menggunakan kulit sintetis yang terbuat dari PVC (Polivinil Klorida). Cetakan yang digunakan merupakan cetakan sederhana berbentuk 2 lingkaran, yaitu lingkaran dalam dan lingkaran luar. Parameter yang diteliti terdiri dari 2 parameter, yaitu suhu dan waktu pengelasan. Eksperimen dilakukan dengan 3 level suhu, yaitu 140°C, 160°C, dan 170°C sedangkan waktu pengelasan dilakukan dengan 3 level yaitu 3 detik, 7 detik, dan 10 detik. Response dari eksperimen ini adalah jari-jari dalam dan jari-jari luar emboss. Hasil proses embossing dipindai dengan menggunakan 3D Scanner dan kemudian dilakukan pengukuran dengan menggunakan perangkat lunak reverse engineering. Pengaruh dari kedua faktor dan interaksinya diketahui dengan menggunakan ANOVA. Pairwise comparison dilakukan dengan menggunakan Tukey’s method. Hasil yang diperoleh adalah suhu mempengaruhi response. Berdasarkan percobaan yang dilakukan hasil embossing dengan suhu sebesar 170oC lebih baik daripada 140oC atau 160oC. Kata kunci: high frequency welding, design of experiment, kulit sintetis, pvc
The geology and tectonic evolution of the northwest part of the Barberton Greenstone Belt, South Africa: A review
Authors: Anhaeusser C.R.
Published: July 2019

Formations on the northwestern flank of the Barberton Greenstone Belt have hosted over 85% of all the gold recovered from the ca. 3550 to 3000 Ma Barberton Supergroup since early discoveries in 1872. This sector of the greenstone belt also happens to coincide with a complex tectonic architecture resulting from successive stages of folding and faulting superimposed onto a complex lithostratigraphy. Of particular importance has been the influence of two diapiric granitoid intrusions that caused added structural complexity following their emplacement ca. 3227 to 3250 Ma. Of these the larger Kaap Valley Pluton invaded the area north of present day Barberton town causing the separation of the greenstones into a northern arm (Jamestown Schist Belt) and a southern sector which remained attached to the main greenstone belt (Moodies Hills). The ballooning pluton produced vertical as well as horizontal flattening stresses, the latter reactivating earlier high-angle faults and resulting in subhorizontal strike-slip movements, particularly along the Barbrook Fault Zone, which acted as a right-lateral strike-slip fault. Formations north of this fault were buckled, following progressive deformation in the region known as the Sheba Hills, into major synclinal folds (Eureka and Ulundi Synclines) with folded axial planes that dip steeply to the south, southeast or east. The second granitoid intrusion (Stentor Pluton), which has been extensively modified by subsequent magmatic events, caused significant flattening of greenstone belt rocks in the northeastern part of the Barberton Greenstone Belt (Three Sisters region) as well as in other areas rimming the granitic body. Combined, the two plutons produced a wide range of interference and reactivated structures particularly affecting a triangular region extending from the Jamestown Schist Belt into the area occupied by the New Consort Gold Mine and areas to the east. This paper attempts to outline, in the simplest manner, the geological and structural evolution of the main gold-producing region of the Barberton Goldfield. The principal aim is therefore to highlight the structural influence of the diapiric plutonism and the manner in which the plutons contributed significantly to the horizontal reactivation of pre-existing regional faults, which in turn, resulted in the progressive deformation of a heterogeneous lithological terrane.
Analisis framing pemberitaan korupsi massal di media online detik.com
Authors: Ananda Muhammad Fairuz Satria , Nugraha Aat Ruchiat , Sumartias Suwandi
Published: July 2019

This research aims to determine the construction of PDIP's image from the news framing on them as the party who has the most corrupted fraction members in the event of mass coruption case if the People’s Legislative Council (DPRD) of Malang City by the online media, Detik.com. This research is conducted through constructivism paradigm with the sudty of framing analysis by Robert M. Entman as a conceptual foundation with the framing concept of Entman, namely, define problems, diagnose causes, make moral judgement, and treatment recommendation from journalist side; using the theory of the social mass media as a theoretical foundation. The results of the framing carried out by the online media, Detik.com tend to be neutral in delivering their news on the mass corruption case of the DPRD of Malang City in construction the image of PDIP as the most corrupted party. This is because the media deliver both side cover, even Detik.com’s journalists already included opinions in the titles and selecting images in the news. Although Detik.com tends to be neutral, becase Detik.com just deliver the facts. The bad image construction of PDIP has been constructed already, as the news is considered to be a bad news model.
Stereotip dan komunikasi interpersonal antara etnis aceh dan etnis tionghoa
Authors: Nurrahmi Febri , Putra Ferry Gelluny
Published: July 2019

Chinese is an ethnic minority in Aceh province implementing Sharia law. This minority group gets a lot of negative stereotypes. This study looks at the reciprocal relationship between stereotypes and interpersonal communication between Acehnese and Chinese. Using Social Learning Theory, this study seeks to describe how a person's learning process through face-to-face interpersonal communication can confirm, change, and even eliminate negative stereotypes that have been previously known. This study employed an explanatory qualitative method. The data were obtained through in-depth interviews with five key informants who were Acehnese and have lived in Gampong Laksana for more than 10 years. The results of this study illustrate that, even though the informants learned many negative stereotypes of Chinese, the majority of informants were not affected by these negative stereotypes. The informants chose to trust personal experience and establish effective communication with Chinese, which eventually eliminated negative stereotypes towards the Chinese group.
Media and environment: how indonesia online news portal frames biodegradable issue?
Authors: Yuliarti Monika Sri , Jatimurti Wikan
Published: July 2019

Environmental problems are still an important issue and cannot be resolved completely until now, even after the 1970s the United Nations established a world environmental day. Plastic waste is considered the most responsible for the problems of environmental damage today. Therefore, an innovation that comes from biodegradable material, with its biodegradable product is considered to be the answer to this environmental problem. This study examines how reporting on the environment is framed in online mass media, especially in relation to biodegradable material and biodegradable products. This is qualitative research, with the object of two Indonesian online news sites, namely www.detik.com and www.okezone.com. Data collection techniques used is document studies and data analysis techniques employed is Robert N. Entman's Framing analysis model which involves four elements, namely: define problems, diagnose causes, make moral judgment, and treatment recommendation. The findings of this study are that environmental issues have not dominated online media coverage, and the biodegradable issue has not been framed thoroughly by online media.
Pengaruh Blended Learning Model dan Sikap Berbahasa terhadap Kemampuan Menulis Bahasa Inggris Siswa Sekolah Menegah Atas Negeri di Kota Pekanbaru
Authors: Wahyuni Sri , Etfita Fauzul
Published: July 2019

Writing ability is one of the demands of learning English. However, writing is also the most difficult skill faced by high school students in the city of Pekanbaru. For this reason, the learning model should be appropriate in accordance with the age development and problems faced by students. Thus, the authors attempted to analyze; (1) the effect of blended learning on students’ writing ability; (2) the effectof language attitude on students’ writing ability; and (3) the effect of

blended learning model and language attitude on students’ writing ability. Referring to the problems and purposes of this study, the author used a quantitative approach namely the experimental method with factorial design. The research was conducted at SMAN 6 Pekanbaru by using a random sampling technique. To measure students' writing ability, the researchersemployed a writing test. Whereas to obtain information or collect data related to language attitude in this study, the researchers distributed questionnaires that have been tested for validity and reliability. After collecting data, researchers tested the data and hypotheses using SPSS 21. In this study, data was normally distributed and the population was homogeneous so that hypothesis testing could be continued. Based on the results of hypothesis testing, this study could be concluded that; (1) there was an effect of blended learning on students’ writing ability; (2) there was an effectof language attitude on students’ writing ability; and (3) there was no effect of blended learning model and language attitude on students’ writing ability.
Verba Majemuk Bahasa Banjar Hulu: Tinjauan Bentuk Gramatikal
Authors: Asnawi Asnawi , Mukhlis Muhammad
Published: July 2019

This study presents a related problem about the compound verbs in the Banjar Hulu language. Banjar language is the language used by the people of Indragiri Hilir Regency Riau. At present the state of the Banjar Hulu language is contaminated with modern culture and technology. Therefore, an in-depth study of the language of Banjar Hulu is needed. The problem that is examined is related to the form of the compound verb Banjar Hulu. The purpose of this study was to describe and explain in detail about the compound verbs in the Banjar Hulu language. This research is a type of field research using descriptive method. The research data is in the form of words spoken by the informant, with competent involvement data collection techniques. Data validation is done by triangulating the source by analyzing data regarding the original form and basic form. The results of this study are the discovery of the first basic compound verbs (a) basic compound verbs with the second noun component, (b) compound verbs with the first component adjectives, (c) basic compound verbs with the second component adjectives, (d) basic compound verbs with the first component adverb, (e) basic compound verb with both verb components. The two affiliated compound verbs; (a) affiliated compound verbs with the base of the components, (b) affixed compound verbs with the base of the free form, (c) affixed compound verbs with the two beraphyx components. The three compound verbs repeated.
MACROBENTHOS OF THE CRENAL AND RITHRAL ZONES OF A TYPICAL «SALMON» RIVER IN NORTHEASTERN SAKHALIN ISLAND (ON EXAMPLE OF THE DAGI RIVER)
Authors: Labay V. S. , Novoselova A. I. , Berezova O. N. , Sharlay O. B. , Shpilko T. S. , Nikitin V. D. , Prokhorov A. P.
Published: July 2019

Structure and quantitative indices of macrobenthos, features of its distribution along the river bed, and basic communities of macrobenthos are described for the crenal and rithral zones of the Dagi River (northeastern Sakhalin) on the data collected in the expedition of Sakhalin State University in September 2017. Five river landscapes are described: 1) plain riverbed with significant alluvial forms; 2) mountain riverbed with significant alluvial forms; 3) plain riverbed with weak alluvial forms; 4) wellhead zone of a plain riverbed with significant alluvial forms; 5) estuary. The main elements of the river bed are partially mixed in the middle stream: the mountainous landscapes with significant alluvial forms are overlapped with the plain landscapes with weak alluvial forms. Distribution of macrobenthos along the river bed and the types of bottom communities are clearly corresponded with the river landscapes. So, the macrobenthos distribution in the Dagi River is physically controlled: the species diversity and abundance of macrozoobenthos increases downstream from the crenal to the rithral zone and further to the combined rithral-potamal zone. A significant increasing of the biomass is noted in the middle and lower rithral zone due to aggregations of freshwater pearl mollusc Margaritifera dahurica which confine with the spawning grounds of pacific salmons. The most common are the bottom communities of Hexatoma and Gammarus lacustris, which are noted almost in all surveyed areas. Other bottom communities are landscape-specific. In the rithral zone, composition and structure of macrobenthos are determined by distance to the riverbank, type of bottom sediments, flow velocity, and lithodynamic regime, so the communities form a consequence determined mainly by lithodynamic regime — the Hexatoma community in the lithodynamic zone of transportation could be followed either by the communities of Trichoptera, Plecoptera, and Diptera in the lithodynamic zone of erosion or by the communities of amphipods G. lacustris and larvae of day-flies Ephemera sachalinenesis in the lithodynamic zone of accumulation.
LIMITS AND OPERATIONAL EVALUATION OF THE SPAWNERS ESCAPEMENT TO THE SPAWNING GROUNDS AS TOOLS FOR PROSPECTIVE AND SHORT-TERM MANAGEMENT OF THE PACIFIC SALMON STOCKS IN THE RIVERS OF THE FAR-EASTERN FISHERIES BASIN
Authors: Shevlyakov E. A. , Feldman M. G. , Ostrovsky V. I. , Volobuev V. V. , Kaev A. M. , Golub E. V. , Barabanshchikov E. I. , Golovanov I. S.
Published: July 2019

The major aspects of density regulation of the pacific salmons spawning are analyzed. Uncertainty of the ecological parameters considered traditionally as indicators of the salmons reproduction efficiency is discussed. If the method of the efficient spawning density is applied to the whole area of spawning grounds, without examination of conditions for spawning, false conclusions on optimum abundance of the spawners could be made. Clear criteria of the spawning grounds environments suitable for spawning are necessary for correct evaluation of the density factor for regulation the population abundance. Efficient escapement to the spawning grounds could be determined adequately by analysis of the reproduction curve. Critical analysis of tools for short- and long-term management of the salmon fishery is presented. Variants of compromise decisions for the multispecies fishery are discussed. The optimal escapement to the spawning grounds in not an absolute norm, but is a statistical parameter used for reaching the maximum production. Conflict between the strategies of saving the reproduction basis of salmon populations and the landing increase by fishing companies is demonstrated. Criteria and algorithm of short-term corrections of the salmon catches during the fishery campaign are provided. Major local units of the pacific salmon stocks in the Far East of Russia are outlined; biological parameters necessary for management of their exploitation are defined. Numbers of the spawners necessary for local and general support of spawning stocks for 5 commercial species of pacific salmons are evaluated to provide the most effective and sustainable natural reproduction of the stocks in the Russian part of the North Pacific.
ONCE AGAIN ON FACTORS LIMITING THE NUMBER OF PACIFIC SALMONS (ONCORHYNCHUS SPP., FAM. SALMONIDAE) DURING THE OCEANIC PERIOD OF THEIR LIFE
Authors: Shuntov V. P. , Temnykh O. S. , Naydenko S. V.
Published: July 2019

Two different views on factors limiting the abundance of pacific salmons in the marine period of their life are compared. According to traditional point of view, food resources are limited in the marine and oceanic epipelagic biotopes, so a strong competition for food exists between different species of genus Oncorhynchus or between pink salmon O. gorbuscha and other species that makes theIr abundance lower and biological conditions worse. Negative anomaly of the sea surface temperature is considered traditionally as a factor controlling the salmons distribution in the ocean because of the food supply worsening. The other point of view is proposed by authors in the 1980s and is based on comprehensive ecosystem studies of the Far Eastern Seas and the North Pacific. Following to this view, the food resources do not limit the abundance of salmons, which play secondary roles in trophic networks within the subarctic epipelagic layer. Besides, these data do not confirm stenotherm habits of salmons, particularly in conditions of low temperature (salmons could be found in the northern Bering and Okhotsk Seas even in winter). In favor of the latter view, new data are presented for 2018, when the highest biomass of the Russian salmons was observed, primarily due to pink salmon abundance, and the absolutely record Russian catch of pacific salmons in 677,200 t was landed.
SOME DATA ON BIOLOGY AND FISHERY OF ICEFISH SALANGICHTHYS MICRODON IN PETER THE GREAT BAY (JAPAN SEA)
Authors: Kim L. N.
Published: July 2019

Within Peter the Great Bay, common icefish Salangichthys microdon forms commercially valuable aggregations in two areas of the Amur Bay and in one area of the Ussuri Bay. It spawns in the internal estuaries of the rivers entered to the bays and in the external estuarine zones in the tops of the bays, mostly on small pebble grounds from late April to late May and feeds in the bays waters. Data on its size and weight composition were obtained in 2017–2018 both from the Amur Bay (for spawning period) and from the Ussuri Bay (for feeding period). During the spawning (on May 6 and May 18), the body length was 59–90 mm, on average 74.9 mm, and the weight was about 750 mg; sex ratio males : females was 1.0 : 0.8. During the feeding, the average body length was 66.8 mm.
Time Resolved Transient Circular Dichroism Spectroscopy Using Synchrotron Natural Polarisation
Authors: Auvray François , Dennetière David , Giuliani Alexandre , Jamme Frédéric , Wien Frank , Nay Bastien , Zirah Séverine , Polack François , Menneglier Claude , Lagarde Bruno , D Hirst Jonathan , Réfrégiers Matthieu
Published: July 2019

Ultraviolet (UV) synchrotron radiation circular dichroism (SRCD) spectroscopy has made an important contribution to the determination and understanding of the structure of biomolecules. In this paper, we demonstrate an innovative time-resolved SRCD (tr-SRCD) technique, overcoming limitations of current broadband UV SRCD setups, to access ultrafast (down to nanoseconds) time-scales, previously measurable only by other techniques, such as infrared (IR), nuclear magnetic resonance (NMR), fluorescence and absorbance spectroscopies and small angle X-ray scattering (SAXS). The tr-SRCD setup takes advantage of the natural polarisation of the synchrotron radiation emitted by a bending magnet to record broadband UV CD faster than any current SRCD setup, improving the acquisition speed from 10 mHz to 130 Hz and the accessible temporal resolution by 11 orders of magnitude. We illustrate the new approach by following the photoisomerization of an azopeptide. This breakthrough in SRCD spectroscopy opens up a wide range of potential applications to the detailed characterisation of biological processes, such as protein folding, protein-ligand binding and DNA nano-structure formation.