Variations

Currently, permanent magnet synchronous motors with on-line starting are being increasingly researched and applied to partialy replace squirrel cage asynchronous motors, which are commonly used. The reason is that these motors have many advantages such as high efficiency, and high power factor value, stable speed, higher power density compared to induction motors, and the ability to self-start.

7p vijiraiya 19-05-2025 1 1   Download

The variation of multiple circular cylinders' drag coefficient was investigated using numerical methods. Moreover, the particle tracking simulation was also performed to show the flow structure and how particles move inside the cylinder array. It was found that the density and location of cylinders have a significant influence on the fluid forces, flow structure, and particle movement inside them.

9p vimitsuki 06-05-2025 1 1   Download

Low-rank representation (LRR) plays a significant role in image classification tasks due to its ability to capture the underlying structure and variations in image data. However, traditional low-rank representation-based dictionary learning methods struggle to leverage discriminative information effectively.

9p viling 11-10-2024 4 1   Download

This study applies Wavelet analysis to develop a comprehensive method for detecting damage in spiral bevel gears within automotive drive systems. By utilising Wavelet analysis to examine the vibration signals of the gears, it is possible to identify spatial and temporal variations in the signals, thereby detecting signs of damage in the system.

12p vifilm 11-10-2024 5 1   Download

Lecture "Machine learning: An introduction to data classification" includes content: Introduction, common techniques in data classification, handing different data types, variations on data classification.

26p myhouse06 24-03-2025 3 1   Download

We propose a new method for finding a zero point of a sum involving a Lipschitzian monotone operator and a maximally monotone operator, both acting on a real Hilbert space. The proposed method aims to extend forward-reflected-backward method by using inertial effect and variable metric. The weak convergence of the proposed method is proved under standard conditions.

11p viaburame 14-03-2025 1 1   Download

The plant A/T-rich protein and zinc-binding protein (PLATZ) family has been regarded as one of the important plant-specific transcription factors that are involved in various biological processes during evolution.

14p viaburame 14-03-2025 3 1   Download

In this study, Cat Hai fish sauce, one of the major traditional fish sauce manufacturers in Vietnam, was used to investigate the variation in histamine content during the fermentation process and to isolate histamine-producing bacteria. Six Dich Chuop samples corresponding to the first sixth months from the beginning of fermentation were collected for these purposes.

10p vibecca 01-10-2024 6 2   Download

The study was carried out in Wistar rats for 4 consecutive weeks by oral administration at the doses of 0.77 and 2.32g/kg/day. After treatment, no significant treatment-related abnormalities were observed at both doses of Boga-TN, compared to the control group, except for the white blood cells, with lower neutrophil but higher lymphocyte values observed in the treated animals. Histopathology assessment did not show any significant variation between control and treatment groups during the study period.

6p viinuzuka 28-02-2025 3 1   Download

The primary objective of this study was to investigate the connection between temperature variations and the range of motion (ROM) in the neck and shoulder regions following specific joint movements based on Traditional Medicine practices. To accomplish this, a novel infrared measurement method was employed to enhance the accuracy of assessments.

7p viyamanaka 06-02-2025 2 1   Download

Bài viết đánh giá kết quả giải trình tự biến thể bản sao qua kỹ thuật CNV-seq (Copy Number Variations – sequencing) ở thai nhi có tăng khoảng sáng sau gáy (KSSG). Đối tượng và phương pháp nghiên cứu: Nghiên cứu hồi cứu, mô tả cắt ngang 54 thai nhi có kết quả siêu âm tăng KSSG được tiến hành chọc hút lấy mẫu dịch ối để chẩn đoán trước sinh bằng kỹ thuật CNV-seq và lập công thức nhiễm sắc thể (NST) karyotype tại Bệnh viện Sản Nhi Nghệ An.

5p viperth 28-11-2024 2 1   Download

The Circle of Willis (CoW) distributes oxygenated blood throughout the brain and represents the only major anastomosis of the brain. The study of variations in CoW is crucial for avoiding confusion of the anomalies with aneurysms, evaluating collateral pathways in the intracerebral circulation, and enhancing pre-operative planning in patients undergoing surgery at the skull base.

8p viakimichi 17-01-2025 2 2   Download

This paper investigates the existence of solutions for the semi-affine variational inequality problem in the finite-dimensional Hilbert spaces. Under suitable conditions, we show that the solution set of the semi-affine variational inequality problem is nonempty.

11p vibenya 31-12-2024 8 2   Download

Polymerase Chain Reaction is widely held as one of the most important inventions of the 20th century in molecular biology. Small amounts of the genetic material can now be amplified to be able to a identify, manipulate DNA, detect infectious organisms, including the viruses that cause AIDS, hepatitis, tuberculosis, detect genetic variations, including mutations, in human genes and numerous other tasks.

62p zingzing09 24-04-2013 59 7   Download

Lecture Control system design: Feedback control system characteristics presents the following content: Error signal analysis, sensitivity of control systems to parameter variations, disturbance signals in a feedback control system, control of the transient response, steady – state error, the cost of feedback, control system characteristics using control design software.

32p youcanletgo_04 17-01-2016 60 2   Download

Bài giảng Học sâu và ứng dụng: Bài 12 Mô hình sinh dữ liệu, cung cấp cho người học những kiến thức như: Giới thiệu về mô hình sinh; Mô hình tự mã hóa Autoencoder; GANs. Mời các bạn cùng tham khảo!

65p tomjerry005 17-11-2021 50 5   Download

The thesis "Stability of some classes of degenerate two-phase difference systems with delay" is to study the stability of degenerate two-phase systems with mixed delay in the direction of variation; Stability and dissipation in finite domain of degenerate 2-D system with variable delay; Evaluation of the gain set and control design for a degenerate 2-D system in the Roesser model with variable delay;... Please refer to it!

120p gaupanda019 21-03-2024 8 1   Download

This study aims to use CFD analysis of CT scan data from the nasal cavities of a range of older Asian males to investigate the impact of geometric variations between older nasal cavities on the airflow structures and airconditioning capacity of the nasal cavity. Air flow mechanisms, heat transfer rates and humidification efficacy are analysed in order to arrive at a more precise understanding of the role of nasal geometry in the presentation of respiratory ailments.

101p runthenight07 01-03-2023 14 3   Download

The focus of this thesis was to study the chemotaxonomic relationship of selected southern Australian marine brown algae of the genera Cystophora and Sargassum. Consequently, this resulted in the isolation and structure elucidation of six new terpenoids from two southern Australian marine brown algae Cystophora moniliformis and Sargassum fallax together with 10 previously reported natural products. As a result of the re-isolation of these known secondary metabolites, updated and complete structural characterisation data could be provided for the first time for 7 of these compounds.

132p runthenight07 01-03-2023 10 3   Download

This research is built upon the determination of the Eigenpairs of one and two dimensional positive differential operators with periodic boundary conditions. The Schrödinger equation was solved for positive operators in both one and two dimensions. Fourier series were used to express the derivatives as the summation of Fourier terms. This led to a novel approach for the calculation of the eigenmodels of a perturbed potential well. The perturbation can be done via an electric field applied to the potential well.

88p runthenight07 01-03-2023 9 3   Download