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3461
Optimization of an Ultrasonic-Assisted Biodiesel Production Process from One Genotype of Rapeseed (TERI (OE) R-983) as a Novel Feedstock Using Response Surface Methodology
Published 2019-07-01“…The properties of the TERI (OE) R-983 methyl ester met the requirements of the biodiesel standard (ASTM D6751), indicating the potential of the produced biodiesel as an alternative fuel.…”
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3462
Eco-House Prototype Constructed with Alkali-Activated Blocks: Material Production, Characterization, Design, Construction, and Environmental Impact
Published 2021-03-01“…The physical-mechanical characterization of the alkali-activated blocks allowed their classification according to the structural specifications of the Colombian Technical Standard NTC 4026 (equivalent to ASTM C90). The global warming potential (GWP) or “carbon footprint” attributed to the raw materials of alkali-activated blocks was lower (25.4–54.7%) than that of the reference blocks (ordinary Portland cement concrete blocks). …”
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3463
Comparación del funcionamiento mecánico, termodinámico y ambiental de motores operando con gasolina y gas natural de La Guajira
Published 2005-01-01“…En este artículo se presentan los resultados experimentales del funcionamiento mecánico y ambiental de un motor Toyota Hilux 2.400 cm3. con relación de compresión 9:1 y el diagnóstico termodinámico de un motor de ensayos normalizado de relación de compresión variable ASTM-CFR monocilíndrico, operando con gasolina y gas natural de La Guajira. …”
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3464
Effect of using spirulina algae methyl ester on the performance of a diesel engine with changing compression ratio: an experimental investigation
Published 2022-10-01“…The properties of the fuels were found according to the American Society for Testing and Materials standards (ASTM). Experimental work was conducted on a single-cylinder diesel engine under variable load and compression ratio. …”
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3465
Mechanical Properties of Phormium Tenax Reinforced Natural Rubber Composites
Published 2021-02-01“…The composite was fabricated using a two-roll mill according to American Society for Testing and Materials (ASTM) D3184-11 standard. Several properties were determined, namely tensile and tear characteristics, hardness, and abrasion resistance. …”
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3466
Cogging process design of M50 bearing steel for billet quality
Published 2023-09-01“…The Billet Quality Index (BQI) is introduced to comprehensively evaluate the effective strain distribution and grain size number (ASTM E112) of the final billet and used as the objective function for the process design. …”
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3467
Finding the Weight Loss Rate of Metallic Surfaces Exposed To Corrosion Presence of Vibration (Corrosion - Vibration)
Published 2012-12-01“…In this research the structural steel type (A36) samples were prepared by traditional preparation operations , chemical composition of samples was analyzed , hardness tested, then testing corrosion was achieved for two major cases, a general corrosion case when the corrosive medium (sea water) is static for five days period ,and the second case is the corrosion with presence of mechanical vibration, which included two branch cases , first case; corrosion of vibrated samples with the vibrated corrosive medium, and the second case when the samples are fixed and corrosive medium is vibratory , a total test period is five hours for each case ,then found weight loss and the corrosion rate of all cases of corrosion mentioned by a traditional weight loss method , as well as study the microstructures before and after the corrosion cases and to find an experimental mathematical formula that illustrate the relationships between corrosion and corrosion with presence of vibration, note that the used device to study the mechanical vibration effect was locally designed and manufactured, according to the modified American Standard (ASTM G32).Observed that the weight loss and corrosion rate reached the highest value in the second case of corrosion with presence of mechanical vibration (fixed samples and corrosive medium is vibratory), followed by the first case of corrosion with presence of mechanical vibration (vibrated samples with the vibrated corrosive medium), and less the value of the corrosion rate and weight loss is the state of general corrosion (corrosion in the static medium). …”
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3468
Capacidad de adsorción del carbón activado sobre cromo total proveniente de los desechos de tenerías.
Published 2013-06-01“…La caracterización del adsorbente consistió en un análisis fisicoquímico (densidad aparente, % cenizas y % humedad) según las normas ASTM, así como la determinación del área superficial específica siguiendo el método de la técnica de índice de yodo. …”
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3469
Mechanical integrity of photovoltaic panels under hailstorms: Mono vs. poly-crystalline comparison
Published 2024-02-01“…This research focuses on evaluating the impact of hail loads on different PV modules, following international standards like ASTM 1038-10 and IEC-61215-2. The developed simulator effectively assesses the reliability of PV modules. …”
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3470
Effect of Biodiesel Mixture Derived from Waste Frying-Corn, Frying-Canola-Corn and Canola-Corn Cooking Oils with Various Ages on Physicochemical Properties
Published 2019-09-01“…It was found that the kinematic viscosity of WCME2 remained within the ranges listed in ASTM D445 (‎1.9−6.0‎ mm<sup>2</sup>/s) and EN-14214‎ (‎3.5−5.0‎ mm<sup>2</sup>/s) at 30 months. …”
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3471
Multifeedstock Biodiesel Production from a Blend of Five Oils through Transesterification with Variation of Moles Ratio of Oil: Methanol
Published 2022-07-01“…The methyl ester content, Density, acid value, and total glycerol test parameters were in accordance with the quality standards of ASTM D 6751, EN 14214, and SNI 7182–2015. Therefore, multi-feedstock biodiesel suitable for industrial-scale applications was successfully produced in this study.…”
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3472
On Ausferrite Produced in Thin Sections: Stability Assessment through Round and Flat Tensile Specimen Testing
Published 2023-01-01“…Because of different wall sections, round and flat tensile specimens with geometries complying with ASTM E8/E8M-11 were tested. Austempered ductile irons from 5 and 3 mm wall sections were tested through flat geometry specimens only, while 25 mm wall sections were tested through both round and flat geometries. …”
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3473
Comparative analysis of enriched flyash based cement-sand compressed bricks under various curing regimes
Published 2024-03-01“…Comprehensive tests under normal and steam curing conditions, adhering to ASTM C 67-05 standards, include X-Ray Diffraction (XRD), Energy Dispersive X-Ray (EDX), and Scanning Electron Microscopy (SEM) analyses. …”
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3474
Prediction of Plastic Shrinkage Cracking of Supplementary Cementitious Material-Modified Shotcrete Using Rheological and Mechanical Indicators
Published 2023-12-01“…To achieve this, plastic cracking was evaluated employing the ASTM C 1579 standard and a smart crack viewer FCV-30, and the rheological parameters were controlled using an ICAR rheometer. …”
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3475
Assessing the Effect of Cellulose Nanocrystal Content on the Biodegradation Kinetics of Multiscale Polylactic Acid Composites under Controlled Thermophilic Composting Conditions
Published 2023-07-01“…Biodegradation was carried out for 180 days under controlled thermophilic composting conditions according to the ASTM D 5338 standard. A first-order model based on Monod’s kinetics under limiting substrate conditions was used to study the effect of cellulose nanocrystal (NCC) content on the biodegradation kinetics of multiscale composite materials. …”
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3476
Prediction of Optimum Expanded Polystyrene Densities for Best Thermal Insulation Performances of Polystyrene Composite Particleboards by Using Artificial Neural Network
Published 2022-01-01“…The thermal conductivity of panels was determined according to ASTM C 518. The prediction model with the best performance and acceptable deviations was determined by using statistical and graphical comparisons between the experimental data and the prediction values obtained as a result of ANN analysis. …”
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3477
Fotodegradasi (Degradasi Abiotik) Kantong Plastik Polietilena Yang Mengandung Aditif Oxo-Degradable
Published 2014-04-01“…Plastik oxo didegradasi dalam UV chamber ATLAS pada suhu 50 oC dengan kontrol iradiasi 0,78 ± 0,02 W/m2.nm pada panjang gelombang lampu UV 340 nm sesuai ASTM D 5208. Perubahan sifat fisik yaitu nilai kuat tarik dan elongasi saat putus diperiksa pada rentang waktu 0 jam sampai dengan 250 jam. …”
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3478
Mercury accumulation in human hair and nails: amalgam fillings as an exposure factor
Published 2007-09-01“…The aim of the current study is to examine the mercury levels in hair and nails in subjects with amalgam fillings.Methods: For a sample of forty university students reporting infrequent fish consump-tion, with their only known exposure to mercury from amalgam fillings, mercury levels were measured in hair and nail samples using the LECO AMA 254 Advanced Mercury Analyzer (USA), according to the ASTM standard No. D-6722 test method.Results: Mercury concentration in hair ranged from 0.09 to 3.11 mg/kg, and in nail from zero to 1.35 mg/kg. …”
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3479
Test method for threshold of hydrogen-induced crack growth KI,H of SCM435 in 115 MPa hydrogen gas
Published 2017-12-01“…JIc test has been standardized by ASTM E1820 for determining fracture toughness JIc or KIc in air. …”
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3480
Applying Silver Nanoparticles to Enhance Metabolite Accumulation and Biodiesel Production in New Algal Resources
Published 2022-12-01“…The lipids and fatty acid fractions from algae containing high concentrations of C16:0, C18:0 and C18:1 enhanced with silver nanoparticle addition were comparable with EN 14214 and ASTM 6751 biodiesel standards. This study indicates that the uptake of AgNPs can enhance the production of fatty acids and be commercialized as sustainable biodiesel. …”
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