Showing 3,241 - 3,260 results of 4,332 for search '"ASTM"', query time: 0.10s Refine Results
  1. 3241

    Briquetting of subbituminous coal and torrefied biomass using bentonite as inorganic binder by A. A. Adeleke, J. K. Odusote, P. P. Ikubanni, A. S. Olabisi, P. Nzerem

    Published 2022-05-01
    “…The reactivity index (RI), proximate, ultimate and calorific values analyses were assessed based on different ASTM standards. Microstructural studies and elemental mapping were carried out using scanning electron microscope equipped with EDS and electron probe microanalyzer. …”
    Get full text
    Article
  2. 3242

    Corrosion of aircraft heritage: a comparison between modern and historic Duralumin alloys by Carla Martini, Elena Bernardi, Cecilia Velino, Luca Lorenzetti, Andrea Balbo, Federica Zanotto, Magali Brunet, Luc Robbiola, Elodie Guilminot, Cristina Chiavari

    Published 2024-01-01
    “…In order to assess the representativeness of these modern alloys in simulating the corrosion behaviour of the historic ones, exfoliation susceptibility (ASTM G34) as well as non-destructive and destructive electrochemical tests in 0.1 M NaCl were carried out on both historic and modern alloys. …”
    Get full text
    Article
  3. 3243

    Compósitos de polipropileno e fibras curtas de sílica by Mariana Gava Segatelli, Cristiane Aparecida da Silva, Inez Valéria Pagotto Yoshida, Maria do Carmo Gonçalves

    Published 2012-04-01
    “…Todos os compósitos foram preparados por processos de extrusão e moldagem por injeção, sendo suas propriedades mecânicas avaliadas por ensaios mecânicos de tração, segundo a norma ASTM D 268, utilizando-se um planejamento fatorial fracionário 25-1. …”
    Get full text
    Article
  4. 3244

    Grain Refinement of Inconel 718 Superalloy—The Effect of Rotating Magnetic Field by Rui Pedro Silva, Rui Soares, Rui Neto, Ana Reis, Ricardo Paiva, Rui Madureira, José Silva

    Published 2022-03-01
    “…The average grain size of the samples was determined according to the ASTM E112-13 standard, using intercept methods. Macro hardness measurements, tensile testing and SEM-EDS analysis were conducted in order to evaluate the casting’s mechanical properties and microstructures. …”
    Get full text
    Article
  5. 3245
  6. 3246

    Biodiesel Production from Waste Plant Oil over a Novel Nano-Catalyst of Li-TiO<sub>2</sub>/Feldspar by Maryam Hanif, Ijaz Ahmad Bhatti, Khurram Shahzad, Muhammad Asif Hanif

    Published 2023-01-01
    “…Fuel properties such as iodine value (AV), cetane number (CN), cloud point (CP), iodine value (IV), pour point (PP) and density were within the ranges specified in ASTM D6751.…”
    Get full text
    Article
  7. 3247

    Finite element modelling of thin intermetallic compound layer fractures by Ooi Eang Pang, Ruslizam Daud, Nasrul Amri Mohd Amin, Mohd Afendi Rojan, Mohd Shukry Abd Majid

    Published 2017-03-01
    “…Thus, this paper aims to determine the accuracy of IMC layer models subjected to crack-to-width length ratio (a/W) in correlation with the ASTM E399-83 Srawley compact specimen model using finite element (FE) analysis. …”
    Get full text
    Article
  8. 3248

    Energy consumption versus strength in MEΧ 3D printing of polylactic acid by Nectarios Vidakis, Markos Petousis, Emmanuel Karapidakis, Nikolaos Mountakis, Constantine David, Dimitrios Sagris

    Published 2023-05-01
    “…Each experimental run included five specimen replicas (after the ASTM D695-02a standard) summing up 135 experiments. …”
    Get full text
    Article
  9. 3249

    Assessment of the suitability of biodegradable rods for use in posterior lumbar fusion: An in-vitro biomechanical evaluation and finite element analysis. by Fon-Yih Tsuang, Yueh-Ying Hsieh, Yi-Jie Kuo, Chia-Hsien Chen, Feng-Huei Lin, Chen-Sheng Chen, Chang-Jung Chiang

    Published 2017-01-01
    “…A 3-point bending test was performed on the biodegradable rods and a dynamic bending test was performed on the spinal fixators according to ASTM F1717-11a. The finite element simulation showed that lumbar spinal fusion using biodegradable implants had a similar ROM at the fusion level as at adjacent levels. …”
    Get full text
    Article
  10. 3250

    Characterization and Evaluation of Composite Biomaterial Bioactive Glass–Polylactic Acid for Bone Tissue Engineering Applications by Georgina Carbajal-De la Torre, Nancy N. Zurita-Méndez, María de Lourdes Ballesteros-Almanza, Javier Ortiz-Ortiz, Miriam Estévez, Marco A. Espinosa-Medina

    Published 2022-07-01
    “…The structure and morphology of the resulting scaffolds were analysed by FTIR, XRD, SEM, and under ASTM F1635 standard characterizations. The results confirmed that BG promotes the formation of a hydroxy-carbonated apatite (HAp) layer on composites when immersed in simulated body fluid (SBF). …”
    Get full text
    Article
  11. 3251

    Implications of the Use of Biodiesel on the Longevity and Operation of Particle Filters by Carl Justin Kamp, Sujay Dilip Bagi

    Published 2022-10-01
    “…Na + K and Ca + Mg (also biodiesel production byproducts) are regulated by ASTM-D6751 standards (American Society for Testing and Materials) to be less than 5 ppm for B100; however, the literature gives examples of physical and chemical degradation of automotive emissions catalysts and their substrates with these Na and K residuals. …”
    Get full text
    Article
  12. 3252

    Lubricity Properties of Palm Oil Biodiesel Blends with Petroleum Diesel and Hydrogenated Vegetable Oil by Nur Allif Fathurrahman, Ahmad Syihan Auzani, Rizal Zaelani, Riesta Anggarani, Lies Aisyah, Maymuchar, Cahyo Setyo Wibowo

    Published 2023-04-01
    “…In this study, binary blends of palm oil biodiesel (POB) with commercial petroleum diesel fuel (DF) and HVO at every 10%-<i>v</i>/<i>v</i> blend point were analyzed using a high-frequency reciprocating rig (HFRR) according to the standard method of ASTM D6079. It was found that the addition of POB successfully improved the lubricating properties of DF-CN48 and DF-CN51 and efficiently acted as a lubricity improver that showed a minimum friction coefficient and improved the specific wear rate. …”
    Get full text
    Article
  13. 3253

    Assessing Vehicle Wandering Effects on the Accuracy of Weigh-in-Motion Measurement Based on In-Pavement Fiber Bragg Sensors through a Hybrid Sensor-Camera System by Xinyi Yang, Xingyu Wang, Joseph Podolsky, Ying Huang, Pan Lu

    Published 2023-10-01
    “…The field testing results indicate that by using the hybrid system, the wheel load detection accuracy of the WIM system based on GFRP-FBG sensors can be controlled to be a Type I or Type III WIM according to the ASTM 1318E-09 standard, with an average accuracy ranging from 87.83% to 94.65%. …”
    Get full text
    Article
  14. 3254

    Development of an Amorphous Silica from Rice Husk Waste by D. K. Bangwar, A. Saand, M. A. Keerio, M. A. Soomro, N. Bhatti

    Published 2017-12-01
    “…Through EDS and XRD, it has been found that that the extracted Rice Husk Ash at the temperature of 800oC for 2hr is rich in amorphous SiO2 content, i.e. 91.74% which meets the requirements of ASTM 618-03 for a pozzolanic material.…”
    Get full text
    Article
  15. 3255

    Production and evaluation of activated carbon from Saudi Arabian _Acacia Tortilis_ tree bark by microwave and low temperature activation process by Muhammad Saleem

    Published 2023-12-01
    “…Characterization of the activated carbons were performed by proximate analysis adopting ASTM standard procedures. BET-specific surface area, total ash content, bulk density, moisture content, pH, pore volume and iodine number were determined. …”
    Get full text
    Article
  16. 3256

    Evaluación de las propiedades mecánicas de una mezcla asfáltica en caliente modificada por vía seca con tapas plásticas de polipropileno by Samuel Chávez- Romero, Shane Aulestia-Viscarra, W. Cando, J. Bucheli, L. Fernández

    Published 2019-09-01
    “…La mezcla se modificó empleando residuos triturados de tapas plásticas de botellas en tamaño de agregado equivalente al retenido en el tamiz número 8, que de acuerdo a la normativa ASTM es de 2,36 milímetros. Se llevaron a cabo ensayos de estabilidad y flujo Marshall sobre muestras fabricadas con diferentes porcentajes de residuos de polipropileno con un contenido óptimo de betún. …”
    Get full text
    Article
  17. 3257

    Stabilization and Crystal Characterization of Electric Arc Furnace Oxidizing Slag Modified with Ladle Furnace Slag and Alumina by Chia-Chun Li, Chi-Ming Lin, Yu-En Chang, Wei-Ti Chang, Weite Wu

    Published 2020-04-01
    “…In addition, the expansion test results of the modified oxidizing slag showed almost no expansion, which conforms to the ASTM D2940 standards; thus, this material can be used for preparing paving materials. …”
    Get full text
    Article
  18. 3258

    اثر تیمار حرارتی با روغن کلزا بر مقاومت به پوسیدگی چوب صنوبر دلتوئیدس by فاضل چهره, محمدرضا ماستری فراهانی

    Published 2014-08-01
    “…برای این منظور نمونه‌هایی از چوب صنوبر با ابعاد 19×19×19 میلیمتر بر طبق استاندارد D 1413 ASTM تهیه شدند. تیمار حرارتی در دمای 180، 200 و220 درجه سانتی‌گراد و در مدت 2 و 4 ساعت در هوای محیط و روغن کلزا انجام شد. …”
    Get full text
    Article
  19. 3259

    Impacts of Covid-19 Pandemic on Nigeria’s Economy: Effective Foundry Technology as a Sustainable Solution by Yusuf Lanre SHUAIB-BABATA, Olanrewaju Yusuf BUSARI, Rasheedat Modupe MAHAMOOD, Salihu Swarnu YARU, Lawal Babatunde ABDULQADIR, Ibrahim Owolabi AMBALI, Kabiru Suleiman AJAO, Sikiru Ottan ABDULRAMAN

    Published 2022-03-01
    “…Thereafter, some mechanical properties with the microstructure of the aluminium casts and that of commercially obtained imported types were examined using appropriate ASTM standards. Cast aluminium alloy produced using  scrap had no casting defects and had some mechanical properties comparable to those available on the markets (imported). …”
    Get full text
    Article
  20. 3260

    Synthesis and Characterization of Calcium Oxide Impregnated on Silica from Duck Egg Shells and Rice Husks as Heterogeneous Catalysts for Biodiesel Synthesis by Haryono Haryono, Safri Ishmayana, Isy Fauziyah

    Published 2023-10-01
    “…At this molar ratio, 81.4% biodiesel yield was achieved, and it met the quality standards according to ASTM D 6751. …”
    Get full text
    Article