The transmission line

Phần 2 cuốn sách "Tự học tiếng Anh chuyên ngành công nghệ động cơ cảm ứng và máy phát điện" trình bày các nội dung: The series DC motor, DC motor starters, DC motor eficency calculation, inductance and inductive reactance, transmission line models,....Mời các bạn cùng tham khảo nội dung chi tiết.

233p unforgottennight06 19-09-2022 15 8   Download

Early life exposure to adverse environments affects cardiovascular and metabolic systems in the offspring. These programmed effects are transmissible to a second generation through both male and female lines, suggesting germline transmission. We have previously shown that prenatal overexposure to the synthetic glucocorticoid dexamethasone (Dex) in rats reduces birth weight in the first generation (F1), a phenotype which is transmitted to a second generation (F2), particularly through the male line.

15p vimichaelfaraday 25-03-2022 15 1   Download

The thesis contributes on quick solving a big amount of work, which is in fault classification and location at the request of the Power Sector. Besides, the thesis supplies the knowledge supporting for operation, increasing the effectiveness of relay’s utilization.

28p guitaracoustic02 08-12-2021 16 2   Download

The growing concern for safety and infrastructural proliferations in the densely populated urban and suburban areas as well as the quest to preserve the aesthetic values in many modern localities have necessitated the need for underground installations.

13p lucastanguyen 01-06-2020 19 2   Download

Bài giảng Basic network management, chương 12 giới thiệu các mô hình mạng WAN. Trong chương này người học có thể biết được các kết nối WAN như leased line, ADSL, PSTN. Mời các bạn cùng tham khảo để biết thêm các nội dung chi tiết.

12p nhanmotchut_3 20-10-2016 46 3   Download

Bài giảng Tiếng Anh chuyên ngành Viễn thông - Unit 4 (part 1): Telecommunications. The main contents of this chapter include all of the following: Reading and note-taking, simple past versus present perfect, transmission lines.

15p estupendo4 24-08-2016 81 4   Download

Bài giảng Tiếng Anh chuyên ngành Viễn thông - Unit 4 (part 2): Telecommunications. The main contents of this chapter include all of the following: Reading and note-taking, simple past versus present perfect, transmission lines.

36p estupendo4 24-08-2016 51 4   Download

Introduction waves and phasors, transmission lines, vector analysis, electrostatics, magnetostatics, maxwell’s equations for time-varying fields, plane-wave propagation, wave reflection and transmission,... As the main contents of the document "Fundamentals of Applied Electromagnetics 6e by Fawwaz T. Ulaby, Eric Michielssen, and Umberto Ravaioli". Invite you to consult.

290p luutrutailieu112 11-12-2015 95 8   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 123 16   Download

The cell line, RCS-LTC (derived from the Swarm rat chondrosarcoma), deposits a copious extracellular matrix in which the collagen component is primarily a polymer of partially processed type II N-procollagen molecules. Transmission electron microscopy of the matrix shows no obvious fibrils, only a mass of thin unbanded filaments. We have used this cell system to show that the type II N-pro-collagen polymer nevertheless is stabilized by pyridinoline cross-links at molecular sites (mediated by N- and C-telo-peptide domains) found in collagen II fibrils processed nor-mally....

8p tumor12 20-04-2013 29 1   Download

In this section, we see how we can represent digital data by using digital signals. The conversion involves three techniques: line coding, block coding, and scrambling. Line coding is always needed; block coding and scrambling may or may not be needed.

71p trada85 22-01-2013 79 7   Download

SPICE (Simulation Program for Integrated Circuits Emphasis) is a general purpose analog circuit simulator that is used to verify circuit designs and to predict the circuit behavior. • PSpice is a PC version of SPICE and HSpice is a version that runs on workstations and larger computers. • PSpice has analog and digital libraries of standard components (such as NAND, NOR, flip-flops, and other digital gates, op amps, etc) which makes it a useful tool for a wide range of analog and digital applications....

25p rain105 01-11-2012 107 24   Download

EURASIP Journal on Applied Signal Processing 2003:9, 922–929 c 2003 Hindawi Publishing Corporation Channel Effect Compensation in LSF Domain An-Tze Yu Department of Computer Science, National Chubei Senior High School, Chubei, Hsinchu, Taiwan 302, Taiwan Email: yuat@cpshs.hcc.edu.tw Hsiao-Chuan Wang Department of Electrical Engineering, National Tsing Hua University, Hsinchu, Taiwan 300, Taiwan Email: hcwang@ee.nthu.edu.tw Received 15 April 2003 and in revised form 9 May 2003 This study addresses the problem of channel effect in the line spectrum frequency (LSF) domain.

8p sting12 10-03-2012 37 3   Download

Frame Relay is a standardized wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology. Originally designed for transport across Integrated Services Digital Network (ISDN) infrastructure, it may be used today in the context of many other network interfaces. Network providers commonly implement Frame Relay for voice (VoFR) and data as an encapsulation technique, used between local area networks (LANs) over a wide area network (WAN).

0p tengteng16 28-12-2011 90 9   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 96 18   Download

Access and Transmission Facilities Connections to PSTN switches can be divided into two basic categories: lines and trunks. Individual telephone lines connect subscribers to the Central Office (CO) by wire pairs

8p chabongthitga 25-09-2010 67 3   Download

SIGNAL PROCESSING IN THE TELEPHONE SYSTEM Until the introduction of the digital telephone, there was virtually no signal processing on the subscriber loop. Indeed, there was no need for it. The majority of subscriber loops were able to transmit voice signals with no particular difficulty and in cases where the lines were longer than usual, line ‘‘loading’’ was used with success. Signal processing has two major aims: (1) To improve the quality of signal transmission over the telephone communication channels....

37p tienvovan 11-09-2010 75 9   Download

Data Network Principles and Protocols We have described the binary form in which data are held by computer systems, and how such data are conveyed over digital line transmission systems, but we shall need to know more than this before we can design the sort ofdevices which can communicatesensibly with one another in somethingequivalent to human conversation.Inthischapter we shalldiscuss indetailthe networks required, the and so-called conveyance of data between computer systems, the ‘protocols’ they will need to ensure that they are communicating properly....

34p huggoo 20-08-2010 77 10   Download

The basic line transmission theory that we have considered so far, together with theprinciples of analogue and digital signal transmission over pairs of electrical wires, is quite suitable for short range conveyance of a small number of circuits. However, it is not always practical or economic to use many multiple numbers of physical ‘pairs’ between exchanges, so we have recourse to frequency division and time division multiplexing reduce the numberof physical pairs of wires to needed to convey a large number of long haul circuits between common end-points....

35p huggoo 20-08-2010 63 9   Download

Introduction to Signal Transmission and the Basic Line Circuit To make it suitable for carriage over most telecommunications networks, information must first be encoded in an electrical manner, as anelectrical signal. Only such signalscan be conveyed over the wires and exchanges that comprise ‘transport the mechanism’ of telecommunications networks.Overtheyears,avarietyofdifferentmethodshave been developed forencoding different types of information.

11p huggoo 20-08-2010 81 5   Download