Showing 4,281 - 4,300 results of 4,332 for search '"ASTM"', query time: 0.12s Refine Results
  1. 4281

    Preparation and characterization of clay based ceramic porous membranes and their use for the removal of lead ions from synthetic wastewater with an insight into the removal mechan... by Abdelrahman K.A. Khalil, Abdelaziz Elgamouz, Saad Nazir, Muataz Ali Atieh, Hussain Alawadhi, Tahar Laoui

    Published 2024-02-01
    “…The X-ray fluorescence results indicated that the natural clay contained 65.5 wt% of silicon dioxide (SiO2), aluminium oxide (Al2O3), and iron (III) oxide (Fe2O3) falling within the class C category of clays according to ASTM. The FTIR analysis showed different clay regions allocated to various stretching and deformation vibrations of hydroxide, organic fraction, and (Si, Al, Fe)–O groups. …”
    Get full text
    Article
  2. 4282

    بررسی تاثیر تیمار خرده های نی بکار رفته در لایه میانی صفحات ساندویچی بر روی خواص فیزیکی و مکانیکی by مرتضی ناظریان, وحید معظمی, سعیدرضا فرخپیام, رحیم محبی گرگری

    Published 2016-08-01
    “…در این پژوهش، اثر تیمار خرده­های نی بکار رفته در لایه میانی پانل ساندویچی (بدون تیمار، تیمار حرارتی و آب جوش)، زمان بسته شدن دهانه پرس در دو سطح (5 میلی­متر بر ثانیه و 9 میلی­متر بر ثانیه) و نسبت وزنی پودر پوسته میوه بادام به رزین ملامین­اوره فرم­آلدئید در سه سطح (3:97، 18:82 و33:67) در خط چسب بر روی بعضی از خواص فیزیکی و مکانیکی پانل ساندویچی بر اساس استاندارد ASTM مورد ارزیابی قرار گرفته است. مواد و روش ها: از ذرات نی با رطوبت 7 درصد در لایه مغزی پانل ساندویچ استفاده شد. …”
    Get full text
    Article
  3. 4283

    Green synthesis of metal oxides (CaO-K2O) catalyst using golden apple snail shell and cultivated banana peel for production of biofuel from non-edible Jatropha Curcas oil (JCO) via... by Achanai Buasri, Jakorn Kamsuwan, Jukkrapong Dokput, Piyawat Buakaeo, Phacharapon Horthong, Vorrada Loryuenyong

    Published 2024-05-01
    “…The biodiesel produced from non-edible JCO meets the criteria for standard biodiesel (ASTM D-6751 and EN 14214). The CaO-K2O catalyst is inexpensive, easy to make, biodegradable, recyclable, and environmentally friendly because it is derived from a biological residue. …”
    Get full text
    Article
  4. 4284

    Production, optimization, and characterization of Ethiopian variant Prosopis juliflora based biodiesel by Hailu Abebe Debella, Venkata Ramayya Ancha, Samson Mekbib Atnaw

    Published 2023-05-01
    “…The objective of this study is to analyze Ethiopian variant Juliflora based biodiesel (JFB) production through transesterification, carry out optimization by exploring the effects of various process parameters and characterization of functional groups (with GC-MS,FT-IR and NMR) including rheological behavior, not yet been reported earlier. As per ASTM protocol testing, the methyl ester of Juliflora has been found to have the following main fuel properties: kinematic viscosity (mm2/s) 3.395, cetane number 52.9, acid number (mgkoh/g) 0.28, density (gm/ml) 0.880, calorific value (MJ/kg) 44.4, methyl ester content (%) 99.8, and flashpoint (°C) 128, copper strip corrosion value 1a,%FFA (free fatty acid) 0.14. …”
    Get full text
    Article
  5. 4285

    Replicating HCCI-like autoignition behavior: What gasoline surrogate fidelity is needed? by Song Cheng, S. Scott Goldsborough, Scott W. Wagnon, Russell Whitesides, Matthew McNenly, William J. Pitz, Dario Lopez-Pintor, John E Dec

    Published 2022-12-01
    “…The current study highlights the need to include non-standardized properties, such as the lean/HCCI-like autoignition characteristics, in addition to ASTM properties (e.g., RON, MON) as metrics of fuel reactivity and targets to be matched when formulating high-fidelity surrogates that fully capture gasoline advanced combustion behavior such as HCCI-like autoignition.…”
    Get full text
    Article
  6. 4286

    بررسی ویژگی‌های کیفی الیاف برخی ارقام پنبه مناطق خشک ایران by صبرینه محسنی توکلی

    Published 2016-08-01
    “…آزمایش­ها با دستگاه HVI مطابق استاندارد ASTM D5869 انجام شد .آزمایش به صورت فاکتوریل در قالب طرح کاملاً تصادفی با 3 تکرار جهت تجزیه و تحلیل آماری صفات کیفی پنبه در نرم‌افزار SAS مورد بررسی قرار گرفتند. …”
    Get full text
    Article
  7. 4287

    Grey Wolf Optimizer for enhancing Nicotiana Tabacum L. oil methyl ester and prediction model for calorific values by Olusegun David Samuel, Mohammad Kaveh, Tikendra Nath Verma, A.O. Okewale, S.O. Oyedepo, Fidelis Abam, Collins N. Nwaokocha, Mohamed Abbas, Christopher C. Enweremadu, Esmail Khalife, Mariusz Szymane, Jacek Dziwulski, C.Ahamed Saleel

    Published 2022-07-01
    “…RSM, ANN, and GWO approaches were used to model TSOME's main production yield. The ASTM test methods were used to examine the significant basic properties of the fuel categories, while the LCV and HCV were detected using standard procedures. …”
    Get full text
    Article
  8. 4288

    مطالعه رفتار حرارتی و زاویه تماس قطره در چوب‌پلیمر فورفوریله شده صنوبر by آیسونا طلائی, توحید محمودی, حمیده عبدل زاده

    Published 2021-02-01
    “…ثبات ابعاد نمونه ها با غوطه‌ وری طولانی مدت در آب طبق استاندارد ASTM D-4442، زاویه تماس قطره با روش قطره‌ گذاری آب دیونیزه و رفتار حرارتی نمونه‌ها نیز با تکنیک‌های TGA (آنالیز وزن‌ سنجی حرارتی) و DTG (مشتق توزین حرارتی) بررسی شدند. …”
    Get full text
    Article
  9. 4289
  10. 4290

    Optimization of Thermomechanical Processing under Double-Pass Hot Compression Tests of a High Nb and N-Bearing Austenitic Stainless-Steel Biomaterial Using Artificial Neural Networ... by Gláucia Adriane de S. Sulzbach, Maria Verônica G. Rodrigues, Samuel F. Rodrigues, Marcos Natan da S. Lima, Rodrigo de C. Paes Loureiro, Denis Fabrício S. de Sá, Clodualdo Aranas, Glaucia Maria E. Macedo, Fulvio Siciliano, Hamilton F. Gomes de Abreu, Gedeon S. Reis, Eden S. Silva

    Published 2022-10-01
    “…The constitutive analysis and the experimental and ANN-simulated results were in good agreement, indicating that ASTM F-1586 austenitic stainless steel used as a biomaterial undergoes up to X<sub>s</sub> = 40% of softening due solely to static recovery (SRV) in less than 1.0 s interval between passes (t<sub>p</sub>), followed by metadynamic recrystallization (MDRX) at strains greater than 0.30. …”
    Get full text
    Article
  11. 4291
  12. 4292

    Leucaena Leucocephala : A new green biocomposite substrates for wireless applications / Ahmad Azlan Ab Aziz by Ab Aziz, Ahmad Azlan

    Published 2018
    “…The process of fabrication applied the compounding moulded flat pressed method, and this method consisted of hot pressed (melting process) and cold pressed (preservation) machines which followed the American standard test and measurement (ASTM) procedure. Every fabricated material has unique dielectric properties and characteristic which give the big impact in antenna design. …”
    Get full text
    Get full text
    Book Section
  13. 4293

    Structural behaviour of reinforced expanded polystyrene steel fibre lightweight concrete (EPSF-LWC) wall panel with opening under axial load / Jamilah Abd Rahim by Abd Rahim, Jamilah

    Published 2018
    “…It is greater than 17 MPa as the requirement for structure component application as stated in the ASTM C-300. The bonding stress of mix 1 (Ml) in series A was 531.22 kPa and deformation was 5.83 mm. …”
    Get full text
    Thesis
  14. 4294

    Development of heterogeneous catalysts for transesterification of non-edible oil to biodiesel by Lee, Hwei Voon

    Published 2012
    “…Furthermore, the physical and chemical characteristics of the jatropha-based biodiesel produced from CaO-MgO, CaO-ZnO, MgO-ZnO and CaO-La2O3 catalyzed transesterification reaction was tested with compliance to ASTM D7851 and EN 14124 standards.…”
    Get full text
    Thesis
  15. 4295

    Suitability of using compacted granite residual soil treated with palm oil fuel ash as hydraulic barrier in sanitary landfill by Muhammed, Abubakar Sadiq

    Published 2015
    “…Chemical composition of POFA showed a fair result of 67.80% in comparison to the minimum requirement of 70% for pozzolanic reaction as stated by ASTM. While on the otherhand, the addition of POFA showed a modification in the structure of the soil from a porous to a dense structure. …”
    Get full text
    Thesis
  16. 4296

    Oil palm empty fruit bunch carbonization in pilot scale and industrial scale horizontal rotary drums by Lau, Lek Hang

    Published 2016
    “…Dengkil char is classified as medium quality fuel in the rank of bituminous or subbituminous equivalent quality according to ASTM D388 standard classification method for coal, Specific carbonization energy of EFB and heat transfer flux rate through feedstock contact area with reactor drum surface could be used as preliminary scale up criteria of horizontal rotary drum. …”
    Get full text
    Thesis
  17. 4297

    Biodegradable poly (ethylene glycol) diacrylate filled aramid nanofiber hydrogel three dimensional printed tissue engineering scaffold by Arifin, Nurulhuda

    Published 2022
    “…It was observed the printed 3D scaffold of 1%wt TPO at 70s curing time produced the most discernible shape of the compression specimen (ASTM D695). Based on the printable photo initiator results, the experiments were expanded further by taking into account the PEGDA concentration, resin to ANFs ratio and DLP curing time. …”
    Get full text
    Thesis
  18. 4298

    Development of anti-icing coatings for sports application by Wu, Xinghua

    Published 2019
    “…To ensure the robustness and durability of the developed coatings, comprehensive mechanical and durability studies including tape adhesion, pencil hardness, dolly-pull tests, nano-indentation, ultraviolet (UV) irradiation, water condensation and sand erosion were carried out according to available ISO or ASTM standard methods. The dual-size coating presented better mechanical properties and UV resistance than the single-size and the PU coatings. …”
    Get full text
    Get full text
    Thesis
  19. 4299

    Prediction of nitrate-nitrogen leaching in paddy soil using multivariate analysis and artificial neural network by Hussain, Hazilia

    Published 2012
    “…Their physical properties were measured by ASTM method while the concentrations of nitrate-nitrogen, phosphate and potassium were analyzed according to US-EPA 300.0, 365.2 and 200.2 procedures,respectively. …”
    Get full text
    Thesis
  20. 4300

    Development of nanoparticles solid acid and bi-functional zirconia supported catalysts for production of biodiesel from waste cooking oil by Hamid, Fathelrahman Hamid Elhassan

    Published 2014
    “…Furthermore, the physical and chemical characteristics of waste cooking oil-based biodiesel properties of the produced biodiesel are tested with compliance to EN14214 and ASTM D6751 standards.…”
    Get full text
    Thesis