bluuebunny/crossref_metadata_2025_split huggingface dataset:
Binary carbon-based additives in LiFePO4 cathode with favorable lithium storage
Authors: Zhang Jianye , Huang Zhiyong , He Chengen , Zhang Jinlong , Mei Peng , Han Xiaoyan , Wang Xianggang , Yang Yingkui 
Published: September 2020

Abstract
A pairwise coupling of 0D Super-P (SP), 1D carbon nanotubes (CNTs), and 2D graphene nanosheets (GNs) into binary carbon-based conductive additives was used here for the LiFePO4 cathode in lithium-ion batteries. For comparison, the LiFePO4 cathode with SP, CNT, or GN unitary conductive agent was also examined. Electrochemical test results suggest that the cathodes with binary conducting additives present greatly improved electrochemical performance than the traditional cathode system (only SP used). Especially, the LiFePO4 cathode containing 3% CNT component exhibits the highest specific capacity and the best cycling stability among all the cathodes with binary conducting additives, indicating that an appropriate amount of CNTs is critical in enhancing the conductivity and practical capacity output. However, an excess of CNTs leads to entangling with each other, hampering the uniform distribution of active materials and resulting in poor electrode performance. Furthermore, the combination of CNT and GN can effectively improve the capacity and cycling stability of the LiFePO4 cathodes due to the synergistic effect of 3D conductive networks constructed by the two.
Regional Myo-Inositol, Creatine, and Choline Levels Are Higher at Older Age and Scale Negatively with Visuospatial Working Memory: A Cross-Sectional Proton MR Spectroscopy Study at 7 Tesla on Normal Cognitive Ageing
Authors: Lind Anna , Boraxbekk Carl-Johan , Petersen Esben Thade , Paulson Olaf Bjarne , Siebner Hartwig Roman , Marsman Anouk 
Published: September 2020

Proton MR spectroscopy (1H-MRS) has been used to assess regional neurochemical brain changes during normal ageing, but results have varied. Exploiting the increased sensitivity at ultra-high field, we performed1H-MRS in 60 healthy human volunteers to asses age-related differences in metabolite levels and their relation to cognitive ageing. Sex was balanced, and participants were assigned to a younger, middle, and older group according to their age, ranging from 18 to 79 years. They underwent 7T1H-MRS of the ACC, DLPFC, hippocampus, and thalamus and performed a visuospatial working memory task outside the scanner. A multivariate ANCOVA revealed a significant overall effect of age group on metabolite levels in all regions. Higher levels in the middle than the younger group were observed for myo-inositol (mIns) in DLPFC and hippocampus and total choline (tCho) in ACC. Higher levels in the older than the younger group were observed for mIns in hippocampus and thalamus, total creatine (tCr) and tCho in ACC and hippocampus; lower levels of glutamate (Glu) were observed in DLPFC. Higher levels in the older than the middle group were observed for mIns in hippocampus, tCr in ACC and hippocampus, tCho in hippocampus, and totalN-acetyl aspartate (tNAA) in hippocampus. Working memory performance correlated negatively with tCr and tCho levels in ACC and mIns levels in hippocampus and thalamus, but not with tNAA or glutamate levels. As NAA and Glu are commonly regarded to reflect neuronal health and function and concentrations of mIns, tCr, and tCho are higher in glia than neurons, the findings of this study suggest a potentialin vivoconnection between cognitive ageing and higher regional levels of glia-related metabolites.SIGNIFICANCE STATEMENTNeurochemical ageing is an integral component of age-related cognitive decline. Proton MR spectroscopy (1H-MRS) studies ofin vivoneurochemical changes across the lifespan have, however, yielded inconclusive results.1H-MRS at ultra-high field strength can potentially improve the consistency of findings. Using 7T1H-MRS, we assessed levels of mIns, tCr, and tCho (glia-related metabolites) and tNAA and Glu (neuron-related metabolites) in ACC, DLPFC, hippocampus, and thalamus. We found higher levels of glia-related metabolites in all brain regions in older individuals. Working memory performance correlated negatively with regional levels of glia-related metabolites. This study is the first to investigate normal ageing in these brain regions using 7T1H-MRS and findings indicate that glia-related metabolites could be valuable in cognitive ageing studies.
Crash Performance of Oil Palm Empty Fruit Bunch (OPEFB) Fibre Reinforced Epoxy Composite Bumper Beam using Finite Element Analysis
Authors: Hassan C. S. , Pei Q. , Sapuan S. M. , Abdul Aziz N. , Mohamed Yusoff M. Z. 
Published: September 2020

Malaysia is categorised as one of the countries with a high number of road crashes involving deaths. This indicated the necessity of improving the safety system of a vehicle including the passive system which comprises of the bumper as one of the systems. In the frontal impact, the bumper system is the first vehicle part that receives the impact. Therefore, a crashworthy bumper that can protect the occupant is essential. In this research, the crash performance of OPEFB fibre/epoxy composite bumper beam has been investigated using finite element analysis. Low-velocity impact of 4 km/h between impact block and the bumper beam was simulated using LS-DYNA in accordance to Federal Motor Vehicle Safety Standards (FMVSS) 581 regulation. The composite was found exhibited comparable specific energy absorption with the aluminum bumper beam. Mass reduction of around 56% was observed. The peak force required for damage initiation for the composite bumper beam reduced by about 90% with impact time lengthen by around 89%. The velocity-history curves revealed a lower level of deceleration could be obtained through the utilisation of the composite bumper beam.
Flow Characteristics of Multiphase Glass Beads-Water Slurry through Horizontal Pipeline using Computational Fluid Dynamics
Authors: Ahmed Shofique Uddin , Arora Rajesh , Parkash Om 
Published: September 2020

Over the decades conveying solid particles through pipelines is a prevalent usage for many industries like food industries, pharmaceutical, oil and gas-solid handling, power generations etc. In the present study, slurry flow through 54.9 mm diameter and 4 m long horizontal pipe with solid particle diameter 0.125 mm and specific gravity 2.47 has been numerically analysed using a granular version of Eulerian two-phase model and RNG K- model. The solid particles are considered as mono-dispersed in the Eulerian model. These models are available in computational fluid dynamics (CFD) fluent software package. Non-uniform structured three-dimensional mesh with a refinement near wall boundary region has been selected for discretising the flow domain, and governing equations are solved using control volume finite difference method. Simulations are conducted at velocity varying from 1 m/s to 5 m/s and efflux concentration varying from 0.1 to 0.5 by volume. Different slurry flow parameters such as solid concentration distribution, velocity distribution, pressure drop etc. have been analysed from the simulated results. The simulated results of pressure drop are correlated with the experimental data available in previous literature and are found to be in excellent compliance with the experimental data.
Comparative Experimental Studies on Four Stroke Four Cylinder Diesel fuelled Base Line Engine and Low Heat Rejection Engine
Authors: Reghu V. R. , Shankar V. , Ramaswamy P. 
Published: September 2020

The depletion of conventional fuel source at a fast rate and increasing of environment pollution motivated extensive research in energy efficient engine design. In the present work, experimental investigations were carried out on a four-stroke four-cylinder dieselfuelled Base Line Engine (BLE) by conducting a normal load test and measuring the required Brake Thermal Efficiency (BThE) and Specific Fuel Consumption (SFC) in a 100 HP dyno facility. A six-gas Analyser was used for the measurement of Unburnt
Hydrocarbons (UBHC), Carbon monoxide (CO), Carbon dioxide (CO2), free Oxygen (O2), Nitrogen oxides (NOx), Sulphur oxides (SOx) and a smoke meter was used to measure smoke opacity. Low Heat Rejection (LHR) engine was realized by coating the crown of the aluminium alloy piston with the most popular Thermal Barrier Coating (TBC) material, namely 8%Yttria Partially Stabilized Zirconia (8YPSZ), after coating qualification on research pistons, specifically fabricated to retain the piston material specification, and the geometry of the crown contour. A normal load test was conducted on LHR engine to evaluate the performance as well as to determine the concentration of pollutants. A ~30% improvement in BThE and ~35% improvement in SFC was exhibited by the LHR engine at all loads studied (7 to 64%). While UBHC level showed an increase, the CO, CO2 and O2 contents as revealed in the emission test showed a mixed response (high and low) for an LHR engine. Compared with BLE, NOx and smoke level in LHR engine emission showed an increasing trend with the load. On comparing BLE and LHR engine test results, value addition to the BLE in terms of reduced fuel consumption and pollutants was observed.
Analysis of the vertical moving table type broaching machine
Authors: Adiyanto Okka , In Soo Park , Senoaji Hermanto Angga , Won Sik Choi 
Published: September 2020

Broaching is a type of machining that uses a toothed tool similar to a saw. There are several types of broaching machines includes linear broaching machines and hydraulic machines. Early linear broaching machines were driven mechanically by screws. However, hydraulic machines are faster, smoother in operation, and allow for high-speed steel broaches to be used. The purpose of this study is to an analysis of the vertical moving table type in the broaching machine. In this study, finite element analysis was carried out to examine the structural characteristics of broaching machine design. A model was created in CATIA software and analyzed with ANSYS to find the structural characteristics. The friction characteristic of PBT-40 material was also investigated. This material is recommended for guide rail surface lamination to reduce the friction coefficient and ram body wear. The simulation results provide information for the next step of development before physical prototype will be made. The maximum deformation of the workpiece table was 0.0517 mm on the positive Z-axis, and the maximum deformation on the pulling head device was 0.0598 mm on the negative Z-axis. The friction coefficients were between 0.013 and 0.047 in the sliding speed range of 0.06 to 0.34 m/s. The PBT-40 material has a wear coefficient of 1.604x10-13 m3/Nm according to the test. From the ANSYS friction simulation, it can be concluded that the PBT-40 material would not easily wear out during operation of the machine. It can be seen that small frictional stress occurred on the surface ranging from 8.273x10-5 to 8.381x10-5 MPa.
PROYECTO EDNA. LOGROS Y DESAFÍOS DE UNA AGENDA PERMANENTE
Authors: Gutiérrez Rojas Marisol 
Published: September 2020

El presente artículo sistematiza la experiencia del proyecto Estado de los derechos de la niñez y la adolescencia (EDNA): sus orígenes, modelo de gestión, alianzas, aportes y desafíos en una agenda comprometida con la protección y promoción de los derechos de esta población. El documento hace hincapié en el periodo 2007-2012; en la elaboración y contenidos de siete informes que evidencian el devenir histórico y las inflexiones en materia de derechos de la población menor de edad; y en el papel de la academia para analizar, liderar, conjuntar y propiciar esfuerzos intersectoriales, interinstitucionales e interdisciplinarios en beneficio de este grupo poblacional.
VIVIENDO LA RELIGIÓN DESDE LA MIGRACIÓN, TRANSNACIONALIZACIÓN DE LA SANTERÍA CUBANA EN LIMA, PERÚ; LA PAZ, BOLIVIA Y SANTIAGO, CHILE (1980-2013)
Authors: Saldívar Arellano Juan Manuel 
Published: September 2020

Las religiones afroamericanas en la actualidad están experimentando diversas formas de ser y pertenecer, pues los nuevos contextos de anclaje se encuentran diseminados a partir de los establecimientos de comunidades migrantes, de la difusión de sus prácticas culturales y la legitimación/institucionalización de las mismas entre locales. La santería en sus procesos de transnacionalización religiosa está manifestándose como una ola mística contra geográfica que propone una serie de particularidades desde el interior de sus prácticas rituales, sobre todo entre mentores/participantes es decir, padrinos/ahijados quienes se involucran de manera creciente permitiéndoles extender sus redes religiosas. En lo que concierne al contexto sudamericano, la singularización de la santería se erige como un fenómeno religioso que se ha vinculado estrechamente con procesos históricos, culturales y políticos propios de lugares como Lima, Perú, La Paz, Bolivia y Santiago, Chile a partir de la llegada de los emigrados cubanos y el auge de sus tradiciones culturales.
Computational study of environmental stress-related transcription factor binding sites in the promoter regions of maize auxin response factor (ARF) gene family
Authors: SAIDI Abbas , HAJIBARAT Zohreh 
Published: September 2020

Auxin response factors (ARF) gene family plays key roles in plant development and act as transcription factors (TFs) in the regulation of gene expression. An extensive bioinformatics analysis including analysis of conserved motifs, chromosomal map, phylogenetic relationships, and expression profiles were performed for the maize ARF gene family. In this study, a set of publicly available 38 ARF maize (Zea mays) nucleotide sequences were downloaded. Using microarray data, a bioinformatics search for identification of TFBs in ARF genes using plant promoter analysis (PlantPAN) was carried out. The 38 maize ARF genes were categorized into three groups (Class I, II, and III). ARF genes have been studied by molecular methods in several different plant species however to better understand the mechanisms of these genes more studies are needed. Gene cluster analysis showed that the same set of genes on the chromosomes were positively correlated with the same number of gene clusters. Several TFBs including AP2/ERF, ERF, WRKY, bZIP, bHLH, GATA, and NAC were identified in the promoter regions. These TFBs are responsible for modulation of several biotic stress-responsive genes. The main aims of the present study were to obtain genomic information for the ZmARF gene family and their expression under abiotic and biotic stresses.
Pengaruh Latihan Small Sided Games One Touch dan Two Touch terhadap Keterampilan Passing di SSB PS BUM Ku-13 Tahun
Authors: Putra Bangkit Pramudya , Tafaqur Muhamad 
Published: September 2020

Permasalahan yang penulis ajukan pada penelitian ini mengenai latihan Small Sided Games di lingkungan SSB. Para Pelatih SSB di Indonesia, masih banyak memberikan materi latihan seperti untuk orang dewasa yang diberikan kepada anak-anak atau latihan yang hanya menggunakan marker tanpa dilakukannya game sisi kecil atau Small Sided Games. Penelitian ini mengenai ”pengaruh latihan small sided games one touch dan two touch terhadap keterampilan passing di ssb ps bum ku-13 tahun”. Metode penelitian yang digunakan adalah metode eksperimen dengan teknik purposive sampling yaitu siswa SSB PSBUM UPI KU-13 Tahun sebanyak 16 orang. Instrumen penelitian yang digunakan adalah tes Passing atau (Wall Pass). Sedangkan untuk mengetahui persentase perbedaan peningkatan hasil latihan sampel menggunakan pengujian SPSS versi 24 pada kedua hasil tersebut. Maka kesimpulan dari hasil penelitian ini adalah terdapat pengaruh tetapi kurang signifikan terhadap latihan Small Sided Games One Touch terhadap keterampilan passing sepakbola pada siswa SSB PSBUM UPI KU-13 tahun dan terdapat pengaruh yang signifikan terhadap latihan Small Sided Games Two Touch terhadap keterampilan passing sepakbola pada siswa SSB PSBUM UPI KU-13 tahun. Disarankan kepada pelatih, pengajar, pembina sepakbola dan para pembaca agar memberikan pelatihan Small Sided Games Two Touch dalam rangka meningkatkan keterampilan passing sepakbola dalam pelaksanaan program latihan pada atlet sepakbola kelompok usia 13 tahun.
La Utopía en América Latina; Un Acercamiento al Legado Histórico y las Políticas Actuales
Authors: Villota-Enríquez Maribel Deicy , Bámaca-Lopéz Efraín , Villota Enríquez Dora Alexandra 
Published: September 2020

This article brings us closer to the concept of utopia in Latin America from the historical legacy and some current regional policies, important to understand the transformations and social constructions in Latin America. The methodology used was qualitative and primary and secondary theoretical documentary sources were used for this analysis, highlighting among them: news, photos, life stories and historical records that are part of the cultural heritage of some specific countries. The importance of investigating and reflecting on the construction of a nation is vital to understand, over the course of space time, the social, political, economic and governmental dynamics that interweave when it comes to including multiple biodiverse nations in an imaginary. The wealth that is established today in Central American, South American and also Caribbean countries, carries on its back the reality of registering for development, joining the vanguard of the utopia of progress that today transgresses its environment, its diversity, its people and above all, the idea of being able to think as if they were in an environment where establishing differences is the principle of exclusion. The utopian construction of the imaginary of the nation in Latin America still moves between the perception of what others conceive of America, and the idea of the territory by the peoples who inhabit it.
Religião e crenças no Atlas Geossociolinguístico Quilombola do Nordeste do Pará
Authors: Dias Marcelo Pires , Oliveira Marilucia Barros de 
Published: September 2020

Este trabalho busca descrever e discutir a variação lexical a partir de dados do campo semântico religião e crenças que integra o Atlas Geossociolinguístico Quilombola do Nordeste do Pará (AGQUINPA). O referido atlas descreve e mapeia a variedade linguística do português afro-brasileiro falado nas comunidades remanescentes de quilombos da Mesorregião Nordeste do Pará. O campo semântico escolhido para análise é composto por questões que expressam a dimensão religiosa e as crenças dos informantes entrevistados na pesquisa. Neste estudo apresentaremos e discutiremos os resultados das seguintes cartas: L104 – diabo e L106 – feitiço. O AGQUINPA adotou como ponto de partida, para a obtenção dos dados, os pressupostos da Geografia Linguística, método da Dialetologia que instrumentaliza o tratamento e a descrição de dados linguísticos no âmbito socioespacial, considerando as dimensões diatópica, diassexual e diageracional. Os resultados apontam diferentes graus de concorrência entre as variantes identificadas, bem como evidenciam a presença de uso de apelidos para referência a formas consideradas tabu.
Orbital and intracranial complications of inflammatory diseases of paranasal sinuses in adults based on case studies of Department of Otorhinolaryngology of N. A. Semashko Republican Clinical Hospital
Authors:   Georgievsky Department of Otorhinolaryngology of Medical Academy  of Vernadsky Crimean Federal University,  Simferopol, Republic of Crimea, 295007, Russia, Zolotareva M. A. , Nazaruk E. I. ,   Semashko Republican Clinical Hospital, Simferopol, Republic of Crimea, 295034, Russia
Published: September 2020

The authors analyzed the hospital morbidity of ENT diseases in Otorhinolaryngology Department of N. A. Semashko Republican Clinical Hospital for the period 2014 to 2018. The data obtained indicate that the most common group among in-patients is patients with respiratory diseases, where the diseases of the nasal cavity and paranasal sinuses predominate. Rhinosinusitis, mostly chronic forms, were the factor of development of orbital and intracranial complications. The complicated forms of this disease were: the orbital form – 10.9%, the intracranial form – 1.2% of all identified cases of rhinosinusitis. According to the analysis, orbital complications prevailed. The predominant form was reactive edema of orbital fat and eyelid fat. The intracranial complications that caused admissions were rhinogenic meningitis and brain abscess. Conservative treatment for rhinogenic orbital complications is indicated under condition of good drainage of the sinuses involved in the inflammatory process, which is provided by the puncture method. The adverse outcome of complicated forms of rhinosinusitis is in most often associated with the delayed visit to the specialists. The solution to this problem will lead to a decrease in lethality in the treatment of rhinosinusitis. Among the regions of the Republic of Crimea, the largest number of patients with complicated forms of rhinosinusitis was observed in Krasnoperekopsk, Dzhankoy, Belogorsk, in Simferopol and Pervomaisk districts. Seasonality indicators did not significantly vary.
PENGOLAHAN SAMPAH SAYURAN MENJADI KOMPOS DENGAN METODE TAKAKURA
Authors: Larasati Adella Atika , Puspikawati Septa Indra 
Published: September 2020

The increasing household activity is increasing also the amount of vegetables waste produced will cause a pile of decomposed waste, so that proper waste management is needed. The processing of waste done by the Community is still conventional that takes a long time so needed an innovation by re-utilizing garbage into compost with the method Takakura. This research aims to determine the comparison of physical parameters (temperature, pH, humidity, smell, color and texture) between the control group and the treatment group in making compost with Takakura method. This research method utilizes an experimental semi-quasi design with a control group and a treatment group conducted in the Environmental Health Laboratory of PSDKU Airlangga University in Banyuwangi during February-April 2019. The results showed that the parameters of physical quality compost vegetable waste without the addition of bioaktivator is the temperature of 29oC, pH 6.8, humidity 45%, colored blackish, smelling soil and texture like soil. While the parameters of physical quality compost vegetable garbage with the addition of Bioaktivator EM4 is 30oC temperature, pH 6.8, humidity 50%, colored blackish, smelling soil and texture like soil. Conclusion of making compost with vegetable garbage method Takakura obtained the temperature parameter of the treatment group higher than the control group, the pH of both groups, the humidity of the treatment group is higher or moist than With the control group as well as the color, smell and texture of both groups in accordance with the guidelines SNI 19-7030-2004.
Keywords: compost, EM4, vegetable waste, takakura