Extraction

Copper is an Exhaustible Resource (ER). Vietnam has some copper mines, of which the largest mine being exploited is Sinh Quyen (Lao Cai). Due to special characteristics of ER, one main question must be answered: what is the optimal mining rate that can enhance a sustainable usage of copper? If it is extracted too much for rapid business growth, the interests of future generations will be harmed, and vice versal.

8p longtimenosee09 08-04-2024 0 0   Download

The study "Spatial-temporal analysis of NO2 concentration in Binh Duong province, Vietnam" aims at using Sentinel-5P satellite data for analyzing NO2 concentrations in Binh Duong province, Vietnam. Google Earth Engine, which is a cloud-based geospatial analysis platform, has been used to collect satellite data and extract information on NO2 concentrations in Binh Duong in the period from 2018 to 2023.

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The paper "A novel approach of neural networks and USLE in smart soil erosion modeling, case study in Southern coastal of Viet Nam" adopted one of the neural networks - the Long ShortTerm Memory (LSTM) to analyze temporal variations in erosion patterns over time, aiding in understanding erosion dynamics. Furthermore, another common soil erosion model - the Universal Soil Loss Equation (USLE) was investigated to predict annual soil loss. Our data were extracted from remotely sensed data (DEM - Digital Elevation Model and MODIS) and vector data of the study area.

11p tukhauquantuong1011 22-04-2024 1 0   Download

Part 1 book "Aspen plus® - Chemical engineering applications" includes content: Introducing aspen plus, more on aspen plus flowsheet features, flash separation and distillation columns, reactors with complex (non conventional) reaction kinetic forms, liquid–liquid extraction process, reactors with simple reaction kinetic,... and other contents.

285p muasambanhan10 11-04-2024 1 0   Download

To study analgesic effects of basil extracts (Ocimum basilicum L.) on mice. Subjects and methods: The experiments were conducted according to heat stimulation (hot plate) and needle slide methods. In each experiment, mice were divided into 4 groups of 10 each, in which the negative control group was given distilled water, the positive one took the control drug, and the others were treated with basil extracts at the doses of 2.4 and 7.2 g/kg/day for 7 consecutive days.

6p viohoyo 16-04-2024 0 0   Download

The purpose of this study was to find the optimal conditions for extracting polyphenols from Vietnamese tropical almond leaves (Terminalia catappa L.) and to assess the anti-diabetic activities of the resulting extract. The polyphenol extraction from Vietnamese tropical almond leaves was optimized using the response surface methodology.

12p vioraclene 01-04-2024 0 0   Download

In Vietnam, a tea-producing country, the tea buds and top three leaves are normally used for tea production while older leaves are pruned and discarded as agricultural waste in the winter. The present study aimed to exploit catechins from pruned tea leaves and use them as natural antioxidants for applications in the food industry.

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Part 1 book "Molecular diagnostics - Fundamentals, methods, and clinical applications" includes content: Nucleic acids and proteins; gene expression and epigenetics; nucleic acid extraction methods; resolution and detection of nucleic acids; analysis and characterization of nucleic acids and proteins; nucleic acid amplifi cation; chromosomal structure and chromosomal mutations, gene mutations; DNA sequencing.

280p muasambanhan10 06-04-2024 0 0   Download

Delay is one of the serious problems in the construction industry, particularly in high-rise building construction projects in Thailand. Therefore, this research aims to investigate the major resource supply causes and effects of delay problems in high-rise building construction projects in Thailand. The study employs both quantitative and qualitative study with concurrent mixed method design. Thirty-three resource supply causes and nine effects extracted from the literature review were used as the basis for further analysis.

14p longtimenosee09 08-04-2024 1 1   Download

In this study, we carried out the optimization of extraction condition of polysaccharide and tannin from three medicinal plants (Ganoderma lucidum (Leyss. Ex Fr.) Karst, Morinda officianalis How and Camellia tamdaoensis Ninh et Hakoda).

8p vilarry 01-04-2024 1 0   Download

In today's world, smart surveillance plays an important role in protecting security and creating a safe living environment. For abnormal objects in the smart surveillance system, this is an important issue, requiring attention and timely response from managers and supervisors. To address this issue, the paper uses transfer learning techniques on modern object detection models to detect abnormal objects such as guns, knives, etc. in public places.

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This study proposes a new classifier based on a decision tree classifier model enriched with rules (called Rule-enriched Decision Tree Classifier (ReDTC)) to extract and analyze sentiments expressed in conditional sentences. ReDTC has been experimented on a dataset collected from English teaching websites.

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This study was designed to extract a high yield of polysaccharides from the M. smilacifolium trunk and characterize it. As a result, the maximum yield of the polysaccharides of 5.13 ± 0.05% was obtained with an extraction time of three hours, extraction temperature of 100 oC, the ratio of water to sample of 1:50 as extraction solution, extraction number of times 3, and the ratio of ethanol to extract volume 5:1 (v/v).

9p viritesh 02-04-2024 0 0   Download

Synthesis of silver nanoparticles (AgNPs) using plant extracts extracted from Ganoderma lucidum in the buffer zone of Bach Ma National Park, Vietnam is a simple, convenient, economical, and environmentally friendly method. This study describes the biosynthesis of silver nanoparticles in both cases with and without ultrasonic assistance using Ganoderma lucidum extract as a reducing and protective agent.

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In this study, a total of 30 yeast isolates were recovered from local fruits in Thua Thien Hue province. Genetic characterization based on the ITS sequences identified isolates belonging to 3 species including Saccharomyces cerevisiae, Lachancea fermentati, and Clavispora fructus, with high sequence homology (over 99%) compared to published sequences in the GenBank.

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Precision oncology involves analysis of individual cancer samples to understand the genes and pathways involved in the development and progression of a cancer. To improve patient care, knowledge of diagnostic, prognostic, predisposing, and drug response markers is essential.

16p vibransone 28-03-2024 2 2   Download

Patterns in expression data conserved across multiple independent disease studies are likely to represent important molecular events underlying the disease. We present the INSPIRE method to infer modules of co-expressed genes and the dependencies among the modules from multiple expression datasets that may contain different sets of genes.

31p vioraclene 31-03-2024 3 2   Download

Deep learning is a subdiscipline of artificial intelligence that uses a machine learning technique called artificial neural networks to extract patterns and make predictions from large data sets. The increasing adoption of deep learning across healthcare domains together with the availability of highly characterised cancer datasets has accelerated research into the utility of deep learning in the analysis of the complex biology of cancer.

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Ebook "Dynamic pulsed-field-gradient NMR (Springer series in Chemical physics, Volume 110)" dealing with the basics, theory and applications of dynamic pulsed-field-gradient NMR NMR (PFG NMR), this book describes the essential theory behind diffusion in heterogeneous media that can be combined with NMR measurements to extract important information of the system being investigated.

364p tudohanhtau1006 29-03-2024 1 1   Download

Ebook "Essential oils as reagents in green chemistry" provides a valuable reference for the contribution of essential oils in the green chemistry, mainly in terms of their characteristics corresponding to their compositions, the development of their extraction technologies including both conventional and green process (e.g. microwave, ultrasound), and their sustainable applications as antioxidants, antimicrobials, insecticides, green solvents and synthons for the green synthesis.

78p tudohanhtau1006 29-03-2024 1 1   Download