analog and digital signals in data communication ppt

Tài liệu Multiple Vulnerabilities qualitave data for the stydy of orpharns and vulnerable children in South Africa ppt

Ngày tải lên : 19/02/2014, 00:20

... area in Jagersfontein where it’s quite rife, Springfontein ja, I think it’s Springfontein number one And the reason for that is that in Springfontein you have, it’s on the N1, the Springfontein, ... their carers and their communities and act as part of the baseline information for evaluating these interventions Thirty in- depth interviews were conducted in Kopanong and 36 in Kanana Information ... entertain ourselves We are only going to the taverns drinking and you see and by going there rate of crime is going up and the rate of HIV is going to be high This HIV/AIDS we are getting there,...

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Foundations of Analog and Digital Electronic Circuits ppt

Ngày tải lên : 23/03/2014, 08:21

... electrical engineering majors including digital and RF circuits, communication, controls, signal processing, or the computer engineering majors including devices, and fabrication digital design, ... remain in core electrical engineering are heavily influenced by the digital domain Because of this elevated focus on the digital domain, basic electrical engineering education must change in two ... Electrical Engineering and Computer Science at the Massachusetts Institute of Technology He joined the faculty in 1988, teaching courses in circuits and electronics, VLSI, digital logic and computer...

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KỸ THUẬT VIỄN THÔNG - Chương 6: Truyền dữ liệu tương tự và dữ liệu số (Analog and digital data transmission) pps

Ngày tải lên : 10/07/2014, 17:20

... dạng mã Morse Ngày nay, loại mã sử dụng rộng rãi phổ biến giới mã ASCII (American Standard Code for Information Interchange) tổ chức ANSI công bố thức Với mã ASCII, ký tự đuwocj biểu diễn bit nhất; ... thích hợp, tia electron phải sinh tổng cộng 483 dòng quét ngang với tốc độ quét 30 lần quét hoàn thành hình giây Các kiểm nghiệm thực tế cho thấy rằng, tốc độ sinh cảm giác nháy mắt người xem ... giá trị liên tục Dữ liệu số liệu có giá trị rời rạc theo thời gian; ví dụ văn (text) số nguyên (integer) Một ví dụ tiêu biểu liệu tương tự liệu âm dạng sóng âm mà tai người thu nhận Hình 2.8 biểu...

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Tài liệu Lecture 14: The Theoretical Basis for Data Communication: pptx

Ngày tải lên : 10/12/2013, 08:15

... voice a bandwidth of 4000Hz, which includes a guard band at top (600Hz) and bottom (300Hz) to prevent interference This limit on bandwidth is imposed by the telephone and the switching equipment ... measuring the signal levels in Lecture 14.doc Page (6) CSN200 Introduction to Telecommunications, Winter 2000 Lecture 14 Communication Basics Part-2 telecommunications because most signal levels in ... used in the telephone network Video signal: Video signal is an analog signal with frequency components in the range of 60 Hz to MHz The bandwidth is almost MHz With guard bands the standard bandwidth...

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Tài liệu Finding, Filtering, and Sorting Rows in a DataTable ppt

Ngày tải lên : 14/12/2013, 13:15

... 10248, 11 }; DataRow orderDetailDataRow = orderDetailsDataTable.Rows.Find(orderDetails); Filtering and Sorting DataRow Objects in a DataTable To filter and sort the DataRow objects in a DataTable, ... Listing 11.3 shows a program that finds, filters, and sorts DataRow objects Listing 11.3: FINDFILTERANDSORTDATAROWS.CS /* FindFilterAndSortDataRows.cs illustrates how to find, filter, and sort DataRow ... OrderID"; SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter(); mySqlDataAdapter.SelectCommand = mySqlCommand; DataSet myDataSet = new DataSet(); mySqlConnection.Open(); mySqlDataAdapter.Fill(myDataSet);...

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Foundations of analog and digital electronic circuits

Ngày tải lên : 09/01/2014, 17:03

... electrical engineering majors including digital and RF circuits, communication, controls, signal processing, or the computer engineering majors including devices, and fabrication digital design, ... remain in core electrical engineering are heavily influenced by the digital domain Because of this elevated focus on the digital domain, basic electrical engineering education must change in two ... Electrical Engineering and Computer Science at the Massachusetts Institute of Technology He joined the faculty in 1988, teaching courses in circuits and electronics, VLSI, digital logic and computer...

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Analog and digital filter design

Ngày tải lên : 09/01/2014, 17:18

... delay line 38 Analog and Digital Filter Design Digital Filter Types Digital filters are becoming more widespread in use and are replacing analog filters in many systems Digital filters process signals ... Analog and Digital Filter Design CHAPTER Transmission Lines and Printed Circuit 12 Boards as Filters Transmission Lines as Filters Open-circuit Line Short-circuit Line Use of Misterminated Lines ... adjustable Chapter 15 outlines the process of digital filtering In this chapter I cover the data sampling operation (under-sampling, over-sampling, interpolation, and decimation) and the advantages...

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Tài liệu Cisco AVVID Network Infrastructure: Implementing 802.1w and 802.1s in Campus Networks ppt

Ngày tải lên : 24/01/2014, 10:20

... Rapid-PVST+ Interacting with PVST+ 4-15 Rapid-PVST+ Interacting with MSTP 4-16 MSTP Interaction (General) 4-16 IST Interacting with STP 4-16 IST Interacting with PVST+ 4-17 IST Interacting with ... Chapter Understanding Multiple Spanning-Tree Protocol (802.1s) MST Regions Figure 3-3 MSTP Design Root Instance Root Instance D2 D1 Instance Instance Instance Instance Instance Instance 76732 ... link to forwarding if a proposal was sent but an agreement was not received • RSTP rapidly transitions a link to forwarding only if it is a point-to-point link A point-to-point link is determined...

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Tài liệu A Journalist’s Guide TO SEXUAL AND REPRODUCTIVE HEALTH IN EASt AFRICA pptx

Ngày tải lên : 13/02/2014, 10:20

... causes irregular bleeding and pain during intercourse in women, burning during urination in men, and discharge in both men and women If left untreated, chlamydia can lead to pelvic inflammatory disease ... like shaking hands or hugging, and it is not transmitted by mosquitoes •• Women are most commonly infected through heterosexual intercourse During vaginal or anal intercourse, tiny cuts and scrapes ... highway linking Mombasa and Kampala Many sex workers and their clients pass HIV to their spouses or regular partners •• Injecting drug use (and sharing infected needles) is an increasingly important...

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Tài liệu Chapter 9 Using Telephone and Cable Networks for Data Transmission pptx

Ngày tải lên : 16/02/2014, 20:20

... switching The telephone network had its beginnings in the late 1800s The entire network, which is referred to as the plain old telephone system (POTS), was originally an analog system using analog ... V.32bis constellation and bandwidth 9.14 Figure 9.9 Uploading and downloading in 56K modems 9.15 9-3 DIGITAL SUBSCRIBER LINE After traditional modems reached their peak data rate, telephone companies ... access to the Internet Digital subscriber line (DSL) technology is one of the most promising for supporting high-speed digital communication over the existing local loops Topics discussed in this section:...

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Tài liệu Báo cáo khoa học: Differential effects of Mxi1-SRa and Mxi1-SRb in Myc antagonism ppt

Ngày tải lên : 18/02/2014, 16:20

... observed, including that Mxi1-SRa appears to be the predominant transcript in the adult intestine and in the developing embryo, whereas Mxi1-SRb transcripts predominate in the adult liver and kidney ... generated by introducing the WR cDNA containing the full 5¢-UTR in pcDNA3.1 The coding region of Mxi1-SRa and Mxi1-SRb were subcloned by PCR in a vector containing an amino terminal ﬂag tag The ... colony-stimulating factor-1 protein by binding to colony-stimulating factor-1 AU-rich element and thus increasing metastatic properties in ovarian cancer [29] GAPDH is an abundant protein but its...

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Tài liệu Property and the Family in Biblical Law ppt

Ngày tải lên : 19/02/2014, 04:20

... equity in the country' and probably also in his 12th, 20th, and some time after his 30th year; Samsuiluna in his first and 8th year, Ammiditana in his first and 20th; and Ammi-saduqa in his first and ... members sold and thus bring them back into the family, and to avenge members killed, and thus bring back ('redeem') their blood into the family And again, the outer limit of the right of inheritance ... of Edinburgh in May 1990, and Chapter was presented as a paper to the Society of Biblical Literature International Meeting in Sheffield, England, in August 1988 8 Property and the Family in Biblical...

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Tài liệu Issue 93 – Regulatory and Tax Developments in June 2012 pptx

Ngày tải lên : 19/02/2014, 15:20

... buying shares in companies or sovereign bonds) as in this case banks, insurers and fund managers are not “packaging” the investment into a product to be marketed and sold to retail investors Finally, ... 2" The IMD regulates selling practices for all insurance products, including both general insurance products (e.g motor and household insurance) and those containing investment elements The proposed ... following web link: Reclaims of excess Withholding Tax deducted from dividend and interest income in Taiwan – a ruling for OEICs Tax ruling No.10104553490 was issued by the Taiwan Ministry of Finance...

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Tài liệu Báo cáo khoa học: The small heat shock proteins and their role in human disease pptx

Ngày tải lên : 19/02/2014, 18:20

... formation of huntingtin-containing inclusion bodies in Huntington’s disease encourages cell survival, whereas monomers and small inclusion bodies of huntingtin, a protein possessing abnormal polyQ ... aB-Crystallin R120 corresponds to aA-crystallin R116 and both are conserved a-crystallin domain arginines R120G aB-crystallin permits intermediate ﬁlament self association in vitro, although binding ... aAcrystallin requires this domain [66] Attachment of R116C aA-crystallin to Hsp27 and aB-crystallin increases in comparison to wild type, while binding to cC-crystallin and bB2-crystallin decreases...

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Tài liệu Báo cáo khoa học: "Automatic Identification of Pro and Con Reasons in Online Reviews" ppt

Ngày tải lên : 20/02/2014, 12:20

... sentence in those reviews collected from each domain with the features described in Section 3.1 We divided the data for training and testing We then trained our model using the training set and tested ... Subjectivity Proceedings of International Conference on Computational Linguistics (COLING-2000) Saarbrücken, Germany Hu, Minqing and Bing Liu 2004 Mining and summarizing customer reviews" Proceedings of ... SIGKDD International Conference on Knowledge Discovery & Data Mining (KDD2004), Seattle, Washington, USA Kim, Soo-Min and Eduard Hovy 2004 Determining the Sentiment of Opinions Proceedings of COLING-04...

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SURVEY OF GYNECOLOGICAL PROBLEMS DURING CHILDHOOD AND EARLY ADOLESCENCE IN A ACADEMICCENTER ppt

Ngày tải lên : 05/03/2014, 13:20

... successively touching the girl’s finger, inner thigh and labia with the instrument prior to its insertion into the vagina The instruments and sampling equipment should be shown to the girl and she should ... Transrectal scanning can be used in children and adolescents instead of transvaginal scanning The images obtained are superior to transabdominal images and comparable to those obtained by transvaginal sonography ... to involute and discharge and it also acts on the mammary glands Acceleration of growth during puberty is induced by increasing secretion of sex steroids Estrogen receptors alpha and beta and androgen...

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PROSTHETIC REHABILITATION OF MISSING TEETH AND ORAL HEALTH IN THE ELDERLY pptx

Ngày tải lên : 05/03/2014, 18:20

... events in life This must be kept in mind in the interpretation of interview data 9.2 Loss of natural teeth In Finland, a clear increase in the number of subjects acquiring dentures was seen in the ... born in 1904, 1909 and 1914 and living in Helsinki, was examined in 1990 and 1991 (Oral-HAS) The main objective of this thesis was to document the current status and later possible changes in prosthetic ... Study (HAS), the oral and dental health and dental hygiene habits of 364 old elderly, born in 1904, 1909 and 1914 and living in Helsinki, was examined in 1990 and 1991 The main objective of this...

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Computational Complexity and Information Asymmetry in Financial Products pptx

Ngày tải lên : 06/03/2014, 19:20

... easy to hedge against (e.g using an industry price index), thus extracting from each asset a random variable that is independent for assets in different industries or markets In any case, our ... following two distributions R and D on (M, N, D) graphs: • R is obtained by choosing for every top vertex D random neighbors on the bottom • P is obtained by first choosing at random S ⊂ [N ] and ... realization of informational asymmetry Anybody who knows how to multiply can randomly generate (using a few coin flips and a pen and paper) a large integer by multiplying two smaller factors This integer...

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Báo cáo khoa học: Post-ischemic brain damage: pathophysiology and role of inﬂammatory mediators ppt

Ngày tải lên : 07/03/2014, 03:20

... target (Fig 1) Indeed, IL-1ra reduces brain injury in animal models of cerebral ischemia and, in a recent randomized clinical trial, intravenous administration of recombinant human IL-1ra in patients ... factors In rodent models of transient MCAO, in ammatory genes (including cytokines, chemokines, adhesion molecules and pro -in ammatory enzymes) are upregulated a few hours after the insult and remain ... such as collagen, proteoglycan and laminin, but also process a number of cell-surface and soluble proteins, including receptors, cytokines and chemokines [81] Thus, in addition to their physiological...

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Transforming Your Care A Review of Health and Social Care in Northern Ireland pptx

Ngày tải lên : 07/03/2014, 04:20

... for example in arranging appointments, in explaining how to use the service and giving timely information This leads at times to disorganisation in our response to the individual and inefficiency ... outcomes for many in our society Reason – Sustainability and quality of hospital services Given the increasing and changing nature of the population, changing practices in medicine and increased expectations ... the Memorandum of Understanding between the DHSSPS and Invest NI on “Connected Health and Prosperity” 41 12 Incentivising Innovation at a Local Level Making changes on the scale indicated in the...

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