Transmission

Bài giảng cung cấp kiến thức cơ bản và chuyên sâu về bộ giao thức TCP/IP, bao gồm: Tổng quan về Internet và mô hình TCP/IP; Cấu trúc IP Datagram; Giao thức ARP (Address Resolution Protocol); Địa chỉ IP và phân lớp địa chỉ; Giao thức ICMP (Internet Control Message Protocol); Giao thức UDP (User Datagram Protocol); Giao thức TCP (Transmission Control Protocol). Mời các bạn cùng tham khảo!

241p thai17272122222 22-05-2025 2 2   Download

Electricity demand is increasing, transmission line development can not keep up with it. This puts the power system in a full load state which puts the power system operating near the boundary of stability. This paper applies deep neural networks to predict power system dynamic stability.

10p viling 11-10-2024 2 1   Download

In this article, we establish a Digital Radio over Fiber (DRoF) information system with two wireless channels utilizing two advanced phase modulation techniques, namely Differential Phase Shift Keying (DPSK), for the CRAN connection and investigate parameters related to nonlinearity such as refractive index n2.

6p viengfa 28-10-2024 4 2   Download

This study was conducted. Moreover, it is shown that choosing the best Tx/Rx parameters is necessary to meet service quality requirements such as BER and transmission confidentiality. The provided findings provide insightful information about the practical considerations of deploying UWOC/ CDMA systems.

11p viengfa 28-10-2024 3 1   Download

Silver nanoparticles (Ag NPs) were synthesized and characterized by transmission electron microscopy (TEM), X-ray powder diffraction (XRD), and absorption spectroscopy. Using Debye-Scherrer’s formula and the result of the XRD spectrum, the size of the Ag NPs was estimated at approximately 8 nm.

7p viengfa 28-10-2024 1 1   Download

Accurate forecasting of the electrical load is a critical element for grid operators to make well-informed decisions concerning electricity generation, transmission, and distribution. In this study, an Extreme Learning Machine (ELM) model was proposed and compared with four other machine learning models including Artificial Neural Networks (ANN), Convolutional Neural Networks (CNN), Long Short-Term Memory (LSTM) and Gated Recurrent Unit (GRU).

10p viengfa 28-10-2024 2 1   Download

The samples were synthesized in two steps containing the photochemical reduction and galvanic replacement reaction using silver nanodecahedra as a sacrificial template to obtain hollow silver-gold alloy nanoshells. The dimension of the hollow cavities can be controlled by varying the amount of HAuCl4. The prepared Ag/Au decahedra can be applied to the SERS analysis.

12p vimitsuki 30-03-2025 2 1   Download

Food fraud, particularly in staple commodities like rice, poses significant risks to trademark protection as well as economic challenges. In this study, we explored the efficacy of Raman spectroscopy in differentiating authentic ST25 rice-a premium variety of Vietnam from other rice types, amidst concerns of adulteration.

9p viaburame 14-03-2025 9 1   Download

In this study, spinel ferrite nanoparticles CoFe2-xLaxO4 (x = 0, 0.025, and 0.05) were successfully synthesized via a simple co-precipitation method using a 5% NaOH solution as a precipitating agent. The physicochemical properties of the materials, annealed at 850 °C for one hour, were characterized using powder X-ray diffraction (PXRD), energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), and vibrating-sample magnetometry (VSM) at room temperature.

10p viling 11-10-2024 3 1   Download

Để hai máy tính giao tiếp được trên mạng, giao thức TCP/IP (Transmission Control Protocol, giao thức điều khiển truyền thông) yêu cầu các máy tính phải được gắn một địa chi IP (Internet Protocol, giao thức Internet). Bài viết trình bày cách thức hoạt động và lỗ hổng bảo mật của DNS.

5p vihyuga 04-03-2025 3 1   Download

This paper studies on establishing the mathematical optimization formulation to coordinate the operating times of directional overcurrent relays in transmission networks. The objective function of this optimization formulation is to minimize the total operation time of all directional overcurrent relays, and it must satisfy the highly nonlinear constraints such as the time multiplier setting range, the plug setting range, and the coordination time interval between the primary and backup relay pair.

9p viinuzuka 28-02-2025 2 1   Download

The results of ultrasonic wave propagation experiments indicated that the presence of steel fibers at a 2% content increased the time of wave propagation. On the other hand, curing conditions, specimen maintenance time, and transmission path distance affected the ultrasonic wave propagation time in high-strength concrete.

11p viyamanaka 06-02-2025 3 2   Download

The application of hydro-mechanical transmissions is recently the trend in agricultural vehicles where a continuously variable transmission ratio has advantages. Hydro-mechanical transmissions provide efficient power transfer while maneuverability is still maintained, and therefore, fuel efficiency is enhanced.

11p tuetuebinhan000 23-01-2025 4 2   Download

Dengue is a mosquito-borne infection found in tropical and sub-tropical regions. In recent years, transmission has increased predominantly in urban and semi-urban areas and has become a major international public health concern. In the last years, the clinical picture of dengue fever is clearly changed.

4p viuchiha 06-01-2025 3 1   Download

TCP là một giao thức tin cậy (connection oriented ), trước khi truyền dữ liệu hai host phải xử lý đồng bộ để tạo ra một kết nốI ảo. Tiến trình này được gọi là ba bứơc bắt tay (Three way handshake)

89p doanhung_dtvtk10 19-03-2013 213 55   Download

This paper introduces an analytical model to assess collision probabilities, applicable for evaluating the effectiveness of WSNs using tree routing protocols. It examines collision probabilities across various types of traffic load, including routing and data traffic, highlighting their interconnected influences.

6p vibenya 31-12-2024 6 2   Download

In this laboratory experiment, you will use SPICE to study sinusoidal waves on lossless transmission lines. Our goal is for you to become familiar with the basic behavior of waves reflecting from loads in transmission lines, and compare the simulations with numeric calculations and the Smith Chart.

30p nhutuanvn91 22-04-2013 127 18   Download

Internet là một mạng máy tính toàn cầu trong đó các máy truyền thông với nhau theo một ngôn ngữ chung gọi là TCP/IP (Transmission Control Protocol/Internet Protocol). E-mail là một dịch vụ cho phép gởi/nhận thư điện tử trên Internet. Đây là một dịch vụ rất phổ biến. Mời các bạn cùng tham khảo tài liệu "Tổng quan về Internet và e-mail" để nắm bắt được nội dung chi tiết.

24p anhgau456 23-11-2015 253 45   Download

Trên một mạng máy tính, các dữ liệu được truyền trên một môi trường truyền dẫn (transmission media). Nó là phương tiện vật lý cho phép truyền tải tín hiệu giữa các thiết bị. Có hai loại phương tiện truyền dẫn chủ yếu: Hữu tuyến (bounded media). Vô tuyến (boundless media). Cáp đồng trục: Là kiểu cáp đầu tiên được dùng trong các LAN.

40p cctm030057 04-12-2010 307 88   Download

A bit (binary digit) is the smallest unit of information • N = 2n where N is the number of representations and n is the number of bits (ex. ASCII, Unicode, PCM code etc.) • Data communications transfer information using codes that are transmitted as signals (either analog or digital) • In general, analog lines provide a slow service that contains high error rates.

59p trungkiendt9 24-04-2011 102 18   Download