Results 11 to 20 of about 590,689 (288)

مطالعه آزمایشگاهی تعیین خواص دی‌الکتریک نفت‌های خام [PDF]

open access: yesPizhūhish-i Naft, 2021
خواص دی‌الکتریک یک ماده، خواصی هست که می‌توان به‌وسیله آن، نتیجه اعمال امواج الکترومغناطیسی بر آن ماده را مطالعه کرد. برای بررسی روش گرمایش الکترومغناطیسی و بهینه‌سازی آن، باید این خواص را بررسی کرد.
علی محمد گارده   +2 more
doaj   +1 more source

Nano, micro and multiscale filler-reinforced functionalized polypropylene composites: FTIR characterization and mechanical study [PDF]

open access: yesPolyolefins Journal, 2022
Nano, micro and hybrid filler-reinforced polypropylene (PP) composites were prepared via melt compounding technique using a twin screw extruder. The nano scale MWCNTs and micro scale glass fibers were used as reinforcements. In addition to the individual
Nanoth Rasana   +1 more
doaj   +1 more source

Breast Cancer Histopathology Image Super-Resolution Using Wide-Attention GAN With Improved Wasserstein Gradient Penalty and Perceptual Loss

open access: yesIEEE Access, 2021
In the realm of image processing, enhancing the quality of the images is known as a superresolution problem (SR). Among SR methods, a super-resolution generative adversarial network, or SRGAN, has been introduced to generate SR images from low-resolution
Faezehsadat Shahidi
doaj   +1 more source

Synthesis and characterization of Co(II), Ni(II), Cu(II) and Zn(II) complexes with 3-salicylidenehydrazono-2-indolinone [PDF]

open access: yesJournal of the Serbian Chemical Society, 2003
Complexes of Co(II), Ni(II), Cu(II) and Zn(II) with 3-salicylidenehydrazono-2-indolinone were prepared. Their structure was established to be [MLCl].Cl by using elemental analysis and molar conductivity, as well as AA, FTIR, UV/VIS and 1H-NMR ...
Konstantinović Sandra S.   +3 more
doaj   +1 more source

Differential hikes in phenolic and flavonoid compounds in germinating soybean (Glycine max) seeds under abiotic stresses [PDF]

open access: yesJournal of Stress Physiology & Biochemistry, 2023
Background: The current study focuses on the participation of total phenolic content (TPC), total flavonoid content (TFC) as well as antioxidant activity in germinating soybean seeds under abiotic stress.
Ashwini K. Sirsat   +2 more
doaj  

FTIR and HPLC-Based Metabolomics of Yacon Leaves Extracts (Smallanthus sonchifolius [Poepp & Endl.] H. Robinson) from Two Locations in Indonesia

open access: yesIndonesian Journal of Chemistry, 2020
Smallanthus sonchifolius [Poepp. & Endl.] H. Robinson (Asteraceae) also known as Yacon or insulin plant, is traditionally used for treating diabetes.
Zulhelmi Aziz   +4 more
doaj   +1 more source

Development of non-destructive methodology using ATR-FTIR with PCA to differentiate between historical Pacific barkcloth [PDF]

open access: yes, 2019
Barkcloths, non-woven textiles originating from the Pacific Islands, form part of many museum collections and date back to the 18th and 19th centuries.
Holmes-Smith, A. Sheila   +2 more
core   +2 more sources

Solubility improvement of progesterone from solid dispersions prepared by solvent evaporation and co-milling [PDF]

open access: yes, 2020
The aim of this contribution was to evaluate the impact of processing methods and polymeric carriers on the physicochemical properties of solid dispersions of the poorly soluble drug progesterone (PG). Five polymers: hydroxypropyl methylcellulose (HPMC),
Al-Obaidi, Hisham   +3 more
core   +1 more source

A literature review of analytical techniques for materials characterisation of painted textiles - Part 2: spectroscopic and chromatographic analytical instrumentation [PDF]

open access: yes, 2017
Part Two of this Literature Review of analytical techniques for materials characterisation of painted textiles focusses on the application of vibrational and x-ray spectroscopic and chromatographic techniques used in the analysis of painted textiles to ...
Lennard, Frances   +2 more
core   +1 more source

Simple one pot preparation of chemical hydrogels from cellulose dissolved in cold LiOH/urea [PDF]

open access: yes, 2020
In this work, non-derivatized cellulose pulp was dissolved in a cold alkali solution (LiOH/urea) and chemically cross-linked with methylenebisacrylamide (MBA) to form a robust hydrogel with superior water absorption properties.
Lindman, Björn   +3 more
core   +1 more source

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