Trees

Study on the antagonistic activity against two pathogenic bacteria in humans (Staphylococcus aureus and Streptococcus pneumoniae) of the Streptomyces MIP_L26 (Called MIP_L26), isolated from the soil in the root zone of the May Chang tree; to investigate the biological characteristics of MIP_L26.

6p vipanly 28-10-2024 0 0   Download

This study disclosed the separation, structural identification, and α-glucosidase inhibitory property of eight depsidones from U. ceratina collected from the bark trees at Paksong town, Paksong district, Champasack province, Laos.

9p viengfa 28-10-2024 1 0   Download

There are many genes, activators, and promoter genes in coffee plants that are continuously being discovered to elucidate their function, especially in a growth stimulation. Therefore, this research aims to screen and analyze auxin- related gene of coffee genome that select candidate genes for transgenic coffee plants to stimulate growth of coffee tree.

10p viengfa 28-10-2024 0 0   Download

Artificial neural networks, which are an essential tool in Machine Learning, are used to solve many types of problems in different fields. This article will introduce an application of the artificial neural network model in the diagnosis of heart disease based on the heart.csv data file.

6p viengfa 28-10-2024 1 1   Download

The main objective of this study is to predict accurately the loaddeflection of composite concrete bridges using two popular machine learning (ML) models namely Random Tree (RT) and Artificial Neural Network (ANN). Data from 83 track loading tests conducted on various bridges in Vietnam were collected and analyzed.

9p viengfa 28-10-2024 2 1   Download

This study proposes the application of Ensemble Decision Tree Boosted (EDT Boosted) model for forecasting the surface chloride concentration of marine concrete Cs. A database of 386 experimental results was collected from 17 different sources covering twelve variables was used to build and verify the predictive power of the EDT model.

12p viengfa 28-10-2024 3 1   Download

This study presents the application of six single algorithm-based models of artificial intelligence, such as artificial neural network (ANN), support vector machine (SVM), classification and regression trees (CART), linear regression (LR), general linear model (GENLIN), and automatic Chisquared interaction detection (CHAID) to predict the residual flexural capacity of corroded RC structures.

12p vibecca 01-10-2024 1 1   Download

For centuries, sanchi has been used in traditional medicine in East Asian countries to promote health and fitness. To identify and distinguish sanchi from adulterants, this study was conducted to determine the sequence of four DNA barcodes. The PCR products of the four barcodes were 330 bp (rbcL), 822 bp (matK), 484 bp (trnH-psbA), and 438 bp (ITS1).

10p vibecca 01-10-2024 5 1   Download

Tree inventory plays an essential role in the urban landscape master plan. It serves as the foundation for data acquisition that supports the planning strategy and decisions relating to the community’s interests, particularly in recently established cities like Thu Duc city.

14p vibecca 01-10-2024 1 1   Download

Illicium verum is a non-timber forest product, which is widely cultivated in Vietnam. A leaf-feeder, Pogonopygia nigralbata Warren is a moth (Lepidoptera: Geometridae: Ennominae), has caused significant damage to plantations of this plant species in Bac Kan province.

9p vibecca 01-10-2024 0 0   Download

The aim of this study was to investigate and identify the species composition of parasitic nematodes on Da Xanh pomelos tree in the study area, thereby assessing their prevalence and impact on the health and productivity of the pomelo trees.

10p vibecca 01-10-2024 1 1   Download

In this study, we use various features, including permission lists, API system calls, and library lists, to create a system named AnLibsXAI to classify Android malware. We experimented with six machine learning models such as Support Vector Machine (SVM), Random Forest (RF), Logistic Regression (LR), Decision Tree (DT), K-Nearest Neighbors (KNN) and Multilayer Perceptron (MLP).

12p viyoko 01-10-2024 2 1   Download

This study presents the results of correlation analysis between morphological characteristics and the rbcL marker in the identification of Padina seaweed samples collected at Hon Thom, Phu Quoc, Kien Giang province (HTO), Vietnam. The phylogenetic tree and genetic distance between HTO with references showed the samples belonging to Padina australis.

12p viling 27-09-2024 4 2   Download

Tài liệu "Kỷ yếu hội thảo Khoa học và công nghệ" tổng hợp các bài viết về: kết hợp thuật toán K-NN và cấu trúc KD-Tree cho phân lớp hình ảnh; xây dựng công cụ gán nhãn thực thể; xây dựng công cụ chuyển đổi dữ liệu y sinh; ứng dụng phương pháp nén ảnh sử dụng PCA trong xử lý ảnh viễn thám; so sánh hiệu suất các thuật toán HAUIM; công nghệ thực tế ảo – hướng phát triển trong đào tạo ngành Công nghệ thông tin; tiếp cận các phương pháp học sâu trong dự báo dữ liệu hướng thời gian;...

271p tuongtrihoai 23-07-2024 9 3   Download

Trong bài báo "Kết hợp thuật toán K-NN và cấu trúc KD-Tree cho phân lớp hình ảnh", một phương pháp phân lớp hình ảnh được đề xuất dựa trên sự kết hợp thuật toán k-NN và cấu trúc KD-Tree nhằm tăng độ chính xác kết quả phân lớp ảnh đầu vào. Để thực hiện bài toán này, đầu tiên cấu trúc KD-Tree được xây dựng theo phương pháp phân lớp đa tầng tại mỗi tầng trên cây để hình thành mỗi nút lá là một phân lớp hình ảnh khác nhau. Mời các bạn cùng tham khảo!

9p tuongtrihoai 23-07-2024 4 2   Download

The paper presents results on tree snails based on samples collected from various parts of Vietnam during the period of 2008–2022. As a result, 14 Amphidromus species were recorded, which increased the diversity of the genus in Vietnam to a total of 27 species. Four species were new country records including Amphidromus atricallosus perakensis, Amphidromus leucoxanthus, Amphidromus perversus natunensis, and Amphidromus areolabiatus. Almost all 14 species were found in the south, while only Amphidromus roseolabiatus was recorded in the north.

19p dianmotminh02 03-05-2024 2 1   Download

The Tajima’s test indicated that the analysed population in balancing selection with a D-value of 2.39. A phylogenetic tree based on 455 bp of hypervariable mtDloop sequence classified 17 Bang Troi chicken individuals into three clades A, B, and E, which are common groups of Vietnamese and Asia indigenous chickens. This result provides the first genetic information and maternal lineages of Bang Troi chickens and it can support for registration of local chicken breeds.

6p dianmotminh02 03-05-2024 5 3   Download

n this work, the main aim is to map the potential zones of groundwater in Central Highlands (Vietnam) using a novel ensemble machine learning model, namely CG-LMT, which is a combination of two advanced techniques, namely Cascade Generalization (CG) and Logistics Model Trees (LMT). For this, a total of 501 wells data and a set of twelve affecting factors were gathered and selected to generate training and testing datasets used for building and validating the model.

10p dianmotminh02 03-05-2024 9 2   Download

The paper is organized as follows: Section 2 provides the preliminaries, which include the fundamental definitions of the M-CFIS model, CFTL, and tree. Section 3 investigates the novel CFRG-based complex fuzzy transfer learning. Section 4 evaluates the proposed RTrieCFTL by running it on both real-life and benchmark data sets. To conclude, the last part must outline this research’s future work.

14p dianmotminh02 03-05-2024 12 3   Download

Bài giảng Kỹ thuật lập trình: Đệ quy nâng cao, được biên soạn gồm các nội dung chính sau Nhận xét về đệ quy; Các bài toán kinh điển. Mời các bạn cùng tham khảo!

17p khanhchi2530 04-05-2024 9 3   Download