The Role of Diffusion and Convective Dispersion in Vapour Extraction Process

2001 ◽  
Vol 40 (04) ◽  
Author(s):  
A. Boustani ◽  
B.B. Maini
Keyword(s):  
Extraction Process ◽  
Convective Dispersion ◽  
Vapour Extraction

scholarly journals Spent Brewer’s Yeast as a Source of Insoluble β-Glucans

2021 ◽  
Vol 22 (2) ◽  
pp. 825
Author(s):  
Ionut Avramia ◽  
Sonia Amariei
Keyword(s):  
Emulsion Stability ◽  
Extraction Process ◽  
Brewer’S Yeast ◽  
Brewer's Yeast ◽  
Brewing Process ◽  
Food Applications ◽  
Water Holding ◽  
Potential Food ◽  
Insight Into

In the brewing process, the consumption of resources and the amount of waste generated are high and due to a lot of organic compounds in waste-water, the capacity of natural regeneration of the environment is exceeded. Residual yeast, the second by-product of brewing is considered to have an important chemical composition. An approach with nutritional potential refers to the extraction of bioactive compounds from the yeast cell wall, such as β-glucans. Concerning the potential food applications with better textural characteristics, spent brewer’s yeast glucan has high emulsion stability and water-holding capacity fitting best as a fat replacer in different food matrices. Few studies demonstrate the importance and nutritional role of β-glucans from brewer’s yeast, and even less for spent brewer’s yeast, due to additional steps in the extraction process. This review focuses on describing the process of obtaining insoluble β-glucans (particulate) from spent brewer’s yeast and provides an insight into how a by-product from brewing can be converted to potential food applications.

scholarly journals ANALISIS FORENSIK UNTUK MENDETEKSI KEASLIAN CITRA DIGITAL MENGGUNAKAN METODE NIST

2020 ◽  
Vol 3 (2) ◽  
pp. 72-81
Author(s):  
Khairunnisak Khairunnisak ◽  
Hamid Ashari ◽  
Adam Prayogo Kuncoro
Keyword(s):  
Extraction Process ◽  
Digital Evidence ◽  
Legal Regulations ◽  
Image Sharpness ◽  
Hidden Information ◽  
Analysis Process ◽  
Specific Objective ◽  
Collection Phase ◽  
Original Information

Currently, the changes in image quality resulting a low-resolution images, faded colors, and so on. This condition potentially attract irresponsible parties to take advantage of the situation for certain purposes. Nowadays, it is very easy for people to manipulate, change, or delete the original information from a digital image thus cause the authenticity and integrity of the image to be doubted. This study is conducted in a specific objective to prove the authenticity of a digital evidence for analysis by providing detailed illustrations of the role of Digital Forensics in accordance with applicable legal regulations in Indonesia using the NIST workflow. The research flow begins with uncovering the background of the problem, collecting data, making scenarios, applying the NIST method, and making conclusions. The illustration used in the scenario is a video inserted into a digital evidence. The video used in this research is the Cyanide Coffee Case with the suspect Wayan Mirna Salihin, happened in August 16, 2016 which was uploaded by Kompas TV channel on Youtube. The NIST analysis phases used several tools: Exiftools, Forevid, and Video Cleaner. The result indicates that all phases in the NIST method are correlated to each other. The result is specifically very clear in the collection phase. The discovery of hidden information causes the examination and analysis process to be more complex especially the extraction process of digital evidence in the form of images. Indeed, the use of various tools are more helpful in disclosing the existing information. This information can be seen from the results of metadata, hash value, and image sharpness from the analyzed digital evidence.

scholarly journals Irreversible Thermal Expansion of Replicated Aluminium Foam

2018 ◽  
Vol 24 (2) ◽  
pp. 156
Author(s):  
Arkady Finkelstein ◽  
Dmitry Husnullin
Keyword(s):  
Thermal Expansion ◽  
Oxide Film ◽  
Thermal Cycling ◽  
Metal Foam ◽  
Porous Metal ◽  
Extraction Process ◽  
Aluminium Foam ◽  
Expansion Process ◽  
Porous Part

There was found irreversible thermal expansion of large items made of the replicated aluminium foam during the extraction of soluble filler from Al-NaCl composite. Sources of the phenomena were investigated. The expansion is discovered to be caused by incomplete contraction of the porous metal due to oxidation of its internal porous surface during thermal cycling with air and water presence. Significant role of oxide film defects in the expansion process was exposed. There was gained information on dependencies of the irreversible thermal expansion on temperature of the extraction process and metal foam pore size. Measurements of the expansion dynamics showed its finite character. It was also noted that the expansion is limited by the thermal expansion coefficient of used alloy. Finally correction coefficients were obtained that, being applied to nominal sizes of a porous part, compensates the expansion.

scholarly journals A Study on the Potential Role of Occlusal Fissure Fractures in the Etiopathogenesis of Equine Cheek Teeth Apical Infections

2019 ◽  
Vol 36 (3) ◽  
pp. 171-178 ◽  
Author(s):  
Katherina Y. Wellman ◽  
Padraic M. Dixon
Keyword(s):  
Computed Tomography ◽  
Methylene Blue ◽  
Potential Role ◽  
Histological Study ◽  
Extraction Process ◽  
Dental Tissue ◽  
Rule Out

Thirty-nine equine cheek teeth diagnosed as having anachoretic apical infections and also having occlusal fissure fractures, but without occlusal pulpar exposure, that had been orally extracted without causing occlusal damage and 10 control teeth were used in this study. The teeth were individually imaged by computed tomography, occlusally stained with methylene blue and visually reexamined, then sectioned subocclusally at 5 mm intervals until the fissure fractures could no longer be detected. A limited histological study was then performed on 7 apically infected and 5 control teeth. Standard computed tomography only detected 1 of 39 fissure fractures. Thirteen of the 39 stained teeth had subocclusal fissure fractures visually identified at approximately 6 mm beneath the surface, and in 9 of these 13 teeth the fissure fractures had deeper staining to a level immediately above or into a pulp horn, indicating a potential route for bacterial pulpitis. However, the current study cannot rule out the possibility that the extraction process, long-term formalin storage, or the processing of teeth may have allowed for deeper staining. Additionally, methylene blue may penetrate dental tissue more readily than bacteria can invade. Further studies on the potential role of fissure fractures in the etiopathogenesis of cheek teeth apical infection are warranted.

Ultrasonic Extraction Chuanxiong Polysaccharide of Influencing Factors

2012 ◽  
Vol 550-553 ◽  
pp. 1071-1075
Author(s):  
Yong Guang Bi ◽  
Chun Chun Liu
Keyword(s):  
Influencing Factors ◽  
Extraction Process ◽  
Extraction Rate ◽  
Ultrasonic Extraction ◽  
Ultrasonic Power ◽  
Extraction Temperature ◽  
Liquid Ratio ◽  
Ultrasonic Time ◽  
Solid Liquid

In order to study the the Chuanxiong polysaccharide ultrasonic extraction process, examine the ultrasonic time, ultrasonic power, solid-liquid ratio and extraction temperature on the Chuanxiong polysaccharide extract rate. The results show that the role of time at 30min Polysaccharide better, the extraction rate is 26.63%. when the ultrasonic power is 320W, Polysaccharide extraction rate is 26.15%.When the solid-liquid ratio is 1:20, polysaccharide extraction rate is 27.73%. When the extraction temperature is 60°C, the polysaccharide extraction rate is 27.73%.

The role of diluent in metal extraction process.

1990 ◽  
Vol 29 (6) ◽  
pp. 453-456
Author(s):  
Junji Shibata ◽  
Sanji Nishimura
Keyword(s):  
Extraction Process ◽  
Metal Extraction

scholarly journals Review of biological processes in oil sands: a feasible solution for tailings water treatment

2016 ◽  
Vol 24 (3) ◽  
pp. 274-284 ◽  
Author(s):  
Sudipta Pramanik
Keyword(s):  
Water Treatment ◽  
Oil Sands ◽  
Feasible Solution ◽  
Extraction Process ◽  
Biological Processes ◽  
Treatment Technology ◽  
Integral Role ◽  
Water Treatment Technology ◽  
Tailings Ponds

The bitumen extraction process from Athabasca oil sands ore produces large quantities of toxic processed water as tailings. The oil industry has reduced the demand for fresh water in the extraction process by recycling this tailings water. Continual recycling increases the toxicity of tailings water many times over, and poses a serious threat to surface and groundwater quality. For a sustainable expansion of Canada’s oil sands industry, it is essential to develop a technically practicable and economically feasible tailings water treatment technology. A review was carried out to describe the integral role of biological processes in oil sands history for identifying a successor tailings water treatment technology. This study proposes the application of an entrapped cells system as a feasible solution for tailings water treatment. Bio-augmentation followed by entrapment of the microbial community indigenous to tailings ponds can be a promising tailings water treatment technology.

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