نتایج جستجو برای: نظریه تکثابتی kubelka

تعداد نتایج: 34177  

Journal: :Cellulose 2021

It is difficult to directly determine the quantity of cationic finishing agents on surface cellulosic fabrics. Herein, we report a direct and feasible method by Kubelka–Munk equation quantify poly (hexamethylene biguanide) hydrochloride (PHMB) adsorbed onto cotton fabrics based principle formation stable blue dye between PHMB bromophenol sodium (BPB). The adsorption was first investigated maxim...

Journal: :Chimica techno acta 2021

The cation deficient complex oxides of (Ca/Sr)MoO4 - BiVO4 Bi2Mo3O12 triple system are promising photocatalysts and pigments. Compounds with general formula Ca1−1.5x-yBix+yФxMo1-yVyO4 Sr1−1.5x-yBix+yФxMo1-yVyO4 were synthesized byconvention solid state technique in the range 550–720 °C. Two wide regions solutions (ordinary superstructured scheelite-type phases respectively) found for each syste...

Journal: :Communications in science and technology 2022

SrBi4Ti4O15 is one of four-layered Aurivillius compound family member that can be used as photocatalyst material works in the violet light region. To expand its work function range conducted by doped with metal elements to results reduced band gap energy. In this research, we synthesized vanadium (SrBi4Ti4-nVnO15 (n= 0, 0.05, 0.1, and 0.15)) molten salt method (used KCl salt). The diffractogram...

Journal: : 2022

هدف: هدف پژوهش حاضر، تبیین الگوی برنامه درسی سواد رسانه‌ای در دوره ابتدایی نظام آموزش و پرورش است.مواد روش‌ها: رویکرد حاکم بر کیفی با استفاده از روش نظریه داده بنیاد انجام شده است. شرکت‌کنندگان این پژوهش، متخصصان صاحب‌نظران حوزه رسانه هستند که نمونه‌گیری هدفمند، 15 نفر آنان مصاحبه شد. ابزار گردآوری داده‌ها، نیمه‌ساختارمند بود تعداد محقق به اشباع نظری رسید.بحث نتیجه‌گیری: برای تجزیه تحلیل داده‌ه...

Journal: :World journal of gastroenterology 2003
Hua-Jiang Wei Da Xing Guo-Yong Wu Ying Jin Huai-Min Gu

AIM To study the optical properties of human normal small intestine tissue at 476.5 nm, 488 nm, 496.5 nm, 514.5 nm, 532 nm, 808 nm wavelengths of laser irradiation. METHODS A double-integrating-sphere system, the basic principle of measuring technology of light radiation, and an optical model of biological tissues were used in the study. RESULTS The results of measurement showed that there ...

In this study, a derivative method is applied for the determination of dye concentration in fabrics dyed with tricomponent dye mixtures. The reflectance of spectra of the samples were recorded between 400 and 700 nm. Initially, the obtained (K/S) spectra were divided by the spectrum of a standard sample dyed with two of the components in the ternary mixture and the derivative spectra were calcu...

Journal: :Jurnal Rekayasa Kimia & Lingkungan 2023

The four-layered Aurivillius SrBi4Ti4O15 compound has been reported to be potentially used as a photocatalyst material. In this research, was prepared by the molten salt method using NaCl/KCl and then degrade methylene blue. analysis of sample diffractogram indicated that obtained but there still impurities Bi4Ti3O12. micrograph showed particle shape is plate-like (sheets) with lot agglomeratio...

Journal: :Symmetry 2021

In this work we present a detailed study showing the importance of Kubelka-Munk (KM) correction in analysis diffuse reflectivity measurements to characterize spin crossover compounds. Combined reflectance and magnetic susceptibility are carried out as function temperature or time highlight conditions under which becomes critical. particular, investigate influence color contrast between two stat...

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