Various chemical characteristics

In this research, in an attempt to make use of the kaolin resources in Vietnam, we present a synthetic process of zeolite A via hydrothermal from kaolinite, together with the modification process of zeolite A using different metallic cations. The characteristics of the prepared zeolite LTAs such as chemical composition and crystalline structure, as well as their catalytic activity in the methanation reaction of carbon dioxide (CO2) to methane (CH4) were extensively investigated.

8p dianmotminh02 03-05-2024 3 1   Download

Ebook "Porosity: Establishing the relationship between drying parameters and dried food quality" provides a comprehensive overview of porosity's effects on dried food quality. The factors influencing porosity during the various drying methods are explored in depth, as well as porosity's overall effect on food properties. The chemical reaction and stability of porosity are also covered, including sensory and mechanical properties. The work looks closely at the relationship between drying conditions, pore characteristics, and dried food quality.

81p tracanhphuonghoa1007 22-04-2024 2 2   Download

Ebook "Functional materials in amperometric sensing polymeric, inorganic, and nanocomposite materials for modified electrodes" critically discuss preparation methods, in addition to chemical and physical characteristics of these new materials. They present various examples of emerging applications in electroanalysis. Due to its comprehensive coverage, the book will become an indispensable source for researchers working on the development and even proper use of new amperometric sensor systems.

228p tudohanhtau1006 29-03-2024 2 1   Download

Ebook "Co-relating metallic nanoparticle characteristics and bacterial toxicity" gives a concise overview of nanoparticles and their microbial toxicity. It introduces various nanoparticles that are considered lethal to microbial cells (bacteria, virus and fungus) placing an emphasis on metal and metal oxide nanoparticles. The synthesis procedures (physical, chemical, microbial) that are often employed in their fabrication are also outlined.

58p tudohanhtau1006 29-03-2024 2 1   Download

This study aimed to address this knowledge gap by providing a comprehensive and detailed database of the characteristics and compositions of the most commonly encountered agricultural residues in Vietnam and Ireland. The research encompassed the analysis of various aspects, including physical characteristics such as moisture content, bulk density, calorific value, volatile matter, fixed-carbon content, and ash content.

6p vicwell 06-03-2024 6 3   Download

This study used various instrumental analyses (e.g., SEM, EDS and FTIR) to investigate morphological, structural and chemical properties of phytoliths which obtained from rice straw, corn and sugarcane leaf, reed, cogon grass and Dicranopteris linearis biomasses.

7p viindra 06-09-2023 2 2   Download

PCA revealed overall acceptability, taste and colour as the top three sensory components contributing to variation in the gari samples. Root size negatively correlated with dry matter, starch content and gari yield. It was concluded that the various cassava varieties exhibited some distinct morpholgical and chemical characteristics which influenced their potentials for gari production.

7p mudbound 10-12-2021 9 1   Download

Phthalocyanines (Pcs) are established sensitive materials for chemical gas sensors due to their superb sensing characteristics and the achievable manifold in their analyte interaction properties. Their sorption properties are determined by the metal ion center and substituents attached to the periphery of the ring system. Similarly, vic-dioximes can be modified in their sorption properties and employed as sensitive materials.

12p tudichquannguyet 29-11-2021 8 2   Download

: Platinum (Pt) loaded activated carbons (ACs) were synthesized by the thermal decomposition of platinum (II) acetylacetonate (Pt(acac)2 ) over chemically activated glucose-based biochar. The effect of Pt loading on surface area, pore characteristics, surface chemistry, chemical structure, and surface morphology were determined by various techniques. XPS studies proved the presence of metallic Pt0 on the AC surface. The graphitization degree of Pt loaded ACs were increased with the loaded Pt0 amount.

16p tudichquannguyet 29-11-2021 6 1   Download

Semiconductors nanoparticles have quantum size effects and non-linear optical characteristics as well as high quantum efficiency, making them next-generation materials that can be applied in various optoelectronic devices. Semiconductor nanoparticles have attracted much attention because of their novel electric and optical properties originating from surface and quantum confinement effects.

5p tamynhan5 10-12-2020 10 2   Download

The fruits usually wasted can be utilized for preparation of various value added products, which are of commercial importance from the industrial as well as health point of view. Considering the importance of value added products for nutritional security, an attempt has been made to develop fermented health drink, studied the physico-chemical characteristics of mulberry fruits and conducted sensory evaluation study for the developed products.

6p nguathienthan8 20-10-2020 13 1   Download

Surajpur Lake is a prominent wetland site in National Capital Region, India, known for its rich avifaunal and aquatic biodiversity. The present study was carried out to analyse water quality and to check the relationship among various physicochemical parameters in both temporal and spatial scales from March 2012 to February 2013. The water samples were collected from five different locations on monthly basis. Standard methods were followed for the collection, sampling and analysis for 12 physicochemical parameters. The data were analyzed using PAST (version 2.15) software.

17p nguaconbaynhay6 24-06-2020 17 0   Download

Fly ash has tremendous potential as a nutrient supplement and plays a favourable role in increasing growth performance. Fly ash constitutes above 70% of the whole amount of residues formed in power plants through combustion of coal. The addition of Fly ash in soil improves or changes various physical, chemical and biological characteristics of soil. Fly ash is used for the improvement of the soil texture, water holding capability, density, bulk density, porosity etc. by using in different ratio with soil. For the growth of plant and crop yield fly ash is used as ameliorate in acidic soils.

14p quenchua6 15-06-2020 6 1   Download

The present study was undertaken to collect baseline data on the Physico-chemical parameters from the Baigul reservoir of district - Udham Singh Nagar, Uttarakhand located in the Tarai region of Uttarakhand. The ecology of reservoir plays a vital role in biological productivity. The nutrient status of water and soil plays the most significant role in governing the production of planktonic organisms.

17p angicungduoc5 14-06-2020 16 0   Download

Cooking and eating quality of rice is predominantly influenced by various physio-chemical characteristics of starch. This study was aimed to characterize the physio-chemical properties of starch in commercially and traditionally cultivated rice varieties using Rapid Viscosity Analyser (RVA) in relation to identify the genotype with prominent starch composition to maximize the consumer’s acceptability.

14p nguathienthan5 04-06-2020 11 1   Download

The present investigation has been carried out for determining the various physicochemical and biological parameters prevailing in Vembanad Lake of Panangad region, Kochi. The water samples were collected fortnightly from the Panangad-Kumbalam region for a period of ten months (September, 2015 to June, 2016). Meteorologically the whole study period can be classified as South west monsoon (September, 2015), Post-monsoon (October -November, 2015), North east monsoon (December, 2015 to March 2016), Premonsoon (April May, 2016) and beginning of south west monsoon (June, 2016).

13p chauchaungayxua5 08-05-2020 11 1   Download

Iron oxide nanorods were synthesized by chemical co-precipitation method. The structural and morphological characteristics of the as-synthesized nanorods were analyzed by Xray diffraction (XRD) and scanning electron microscopy. The results show that the iron oxide nanorods include the mixture of Fe3O4, γ-Fe2O3 and FeOOH with the diameter and the length of iron oxide nanorods to be 30 and 100 nm, respectively. The iron oxide nanorods were then dispersed and deposited on the gold electrode of quartz crystal microbalance (QCM) for the gas sensor.

8p nguyenminhlong19 22-04-2020 30 1   Download

Groundwater survey is an important process for determining its suitability for various uses in daily human life by measurement of its physical and chemical characteristics. Present survey is done to assess and categorize the quality of groundwater of Pundri block of Kaithal district by focusing on electrical conductivity (EC), pH, cationic and anionic composition of groundwater.

8p kethamoi4 16-04-2020 6 1   Download

Satavari is known as queen of herbs. Active chemical constituents of Shatavari are Sarsapogenin, Saponins A-4 to A-7, Shatavarin I to IV, Sitosterol, Glycosides of quercetin, Stigmasterol, Asparagamine A and Sitosterol 7. High temperature during processing has no effect on these active constituents. Hence attempt was made to utilize satavari roots powder for preparation of herbal aonla ladoo. Satavari roots were processed to prepare powder and herbal aonla ladoo using satavari powder (2, 4 and 6%) were developed and evaluated.

9p trinhthamhodang1212 06-04-2020 10 1   Download

Microorganisms produce various pigments like carotenoids, melanin’s, flavins, monascins, violacein and indigo. Carotenoids are a group of bioactive compounds and are responsible for bright yellow, orange, red pigments of various plants, microorganisms and animals and are widely distributed in nature. These pigments have an important function to act as protective agents against oxidative damage. Recently carotenoids have attracted greater attention due to the beneficial role on human health.

20p trinhthamhodang4 22-03-2020 9 2   Download