Achilles design of a high capacity mesh network with directional antennas
Achilles design of a high capacity mesh network with directional antennas
... directional antennas By making efficient use of directional antennas, for both transmission and reception, and spatial reuse in transmission, Achilles achieves the goal of a high capacity mesh network ... a 3-D view of radiation patterns Figure 2.1: 3-D representation of antenna radiation pattern of a directional and omnidirectional antenna, courtesy wikipedia.com Antennas are often compared against ... Two main categories of antennas are commonplace: i) omnidirectional antennas radiate in all directions with almost equal gain, and are usually modeled by a circular transmission radius ii) directional...
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báo cáo hóa học:" Research Article Design and Implementation of a Single-Frequency Mesh Network Using OpenAirInterface" docx
... channel measurements which can be used for channel characterization and capacity analysis [2] Apart from a general overview of OpenAirInterface, in this paper we present OpenAirMesh a specification ... node Variable bit-rate traffic channel with negotiated QoS parameters used by the mesh network to transport data traffic corresponding to a particular flow Table 4: Transport and physical channels Each ... norm of a vector a is denoted by a and the Frobenius norm of a matrix A is denoted by A F E denotes expectation, and EURASIP Journal on Wireless Communications and Networking Table 1: Hardware...
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System on chip design of a high performance low power full hardware cabac encoder in h 264 AVC
... real-time CABAC encoder targeting at high definition high quality H. 264/ AVC video coding applications In this thesis, research work is carried out to design a hardware IP of CABAC encoder targeting ... targeting at the Main profile of H. 264/ AVC The general research objectives include: (1) Design a SoC based full hardware CABAC encoder that minimizes computation on the host processor and data transfer ... value of bits is confirmed This coded bit output mechanism of binary arithmetic coding is adopted by CABAC of H. 264/ AVC 2.2 CABAC of H. 264/ AVC CABAC stands for Context-based Adaptive Binary Arithmetic...
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Tài liệu Experiences in Design and Implementation of a High Performance Transport Protocol doc
... Efficiency and Fairness Characteristics • Takes 7.5 seconds to reach 90% of the link capacity, independent of BDP • Satisfies max-min fairness if all the flows have the same end-to-end link capacity ... (Additive Increase Multiplicative Decrease) • Fair: max-min fairness • Stable: globally asynchronously stable • But, inefficient and not scalable – In grid networks (with high bandwidth-delay product) ... shortcomings of TCP • We explained the design rationale and implementations details in this paper Future Work • Bandwidth Estimation • CPU utilization – Self-clocking – Code optimization • Theoretical...
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Báo cáo " Research, design and fabrication of a high-power combiner using Wilkinson bridge of L-band " pptx
... Thanh, Nguyen Anh Tuan, Bach Gia Duong, Research, Design And Fabrication Of The 45W And The 200W, L-Band Power Amplifier Using The Modern Microstrip Technology For Application In The National ... have also investigated the S11 factor of the power divider Wilkinson on network analyzer, the result was relatively similar to that of the simulink model Afterthat we have measured the characteristics ... was studied because this frequency will application in our the next reseach for design and fabrication of a transmitter system for the phase identification code D.T Thuy et al / VNU Journal of...
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Báo cáo y học: "Design of a trans protease lentiviral packaging system that produces high titer virus" pptx
... PR and to create a stop at the end of PR are 5' GAA GAT CTA CGC GTT CCG GAG CAG ATG ATA CAG TAT TAG AAG 3' and 5' CGG AAT TCG GAT CCT TAA AAA TTT AAA GTG CAG CCA ATC TGA GT 3' Cells Human embryonic ... GGG CAA TTA AAG GAA GCT CTA TTA GAT T 3', 5' CCG GAA TCT AAT AGA GCT TCC TTT AAT TGC CCC CCT ATC TTT ATT GTG ACG A 3', 5' GGG GTC GCT GCC AAA GAG TGA TCT GAG GGA AGC TAA AGG ATA CA 3' and were ... were separated by SDS-12.5% polyacrylamide gel electrophoresis and analyzed by autoradiography Densitometric analysis of autoradiograms was performed with a Molecular Dynamics Personal densitometer...
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Design and implementation of a high speed and low power flash ADC with fully dynamic comparators
... DESIGN AND IMPLEMENTATION OF A HIGH SPEED AND LOW POWER FLASH ADC WITH FULLY DYNAMIC COMPARATORS LI TI A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF ENGINEERING DEPARTMENT OF ELECTRICAL AND ... comparator design assumes such a pivotal position in conventional flash ADC design that its importance can hardly be overstated Chapter Overview of Flash ADC Designs 2.2 Flash ADC Designs with ... 106.1 32.3 304 Table 2.1 Summary of bit flash ADC designs *Calculated based on data given in paper 2.3 Flash ADC Designs with Calibration Techniques Rather than averaging and interpolating to reduce...
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a high capacity acid cation exchange resin
... strong acid cation resin is a premium grade product with high exchange capacity, excellent resistance to attrition and good resistance to thermal and oxidative degradation The high cross-linkage ... ensuring that Customer’s workplace and disposal practices are in compliance with applicable laws and other governmental enactments Seller assumes no obligation or liability for the information in ... this document NO WARRANTIES ARE GIVEN; ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED *Trademark of The Dow Chemical Company Form No 177-01588-904...
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Novel design of a compacted micro-structured air-breathing PEM fuel cell as a power source for mobile phones
... performance and design of air-breathing PEM fuel cells Litster and Djilali [1] developed a single-phase one-dimensional semi-analytical model of the membrane electrode assembly (MEA) of planar air-breathing ... of a passive planar air breathing fuel cell cathode J Power Sources 2007, 167(1), 118–129 [3] Rajani B.P.M and Kolar A. K A model for a vertical planar air breathing PEM fuel cell J Power Sources ... great role in the performance of air-breathing fuel cells However, these fuel cell designs have generally relied on traditional planar MEA architecture Because the majority of PEM fuel cell designs...
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Novel design of a disk-shaped compacted micro-structured air-breathing PEM fuel cell
... performance and design of air-breathing PEM fuel cells Litster and Djilali [1] developed a single-phase one-dimensional semi-analytical model of the membrane electrode assembly (MEA) of planar air-breathing ... Mechanical behaviour of PEM fuel cell catalyst layers during regular cell operation International Journal of Energy and Environment, 2010; 1(6), 927-936 [16] Maher A. R Sadiq Al-Baghdadi A CFD analysis ... performance Such fuel cells have the potential to be significantly cheaper, smaller, and lighter than tubular and planar plate and frame fuel cells; they could also broaden the range of fuel cell applications...
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Tài liệu Design of a USB Device Driver ppt
... Zero Data Per Endpoint USB Bus Interface SIE No USB Format a collection of endpoints USB Framed Data USB Bus Interface SIE USB Framed Data Transactions Device USB Device USB System manages devices ... Idle Handshake ACK ACK DATA0/ DATA0/ DATA1 DATA1 NAK DATA0 T/O STALL T/O ACK Idle Host Function There are Four Types of USB Transactions ? Isochronous (Audio, telephony …) –Periodic, Bounded latencies, ... –First packet in any transaction –Specifies function address, endpoint –Specifies data direction ? Data - DATA0, DATA1 –0 - 1023 bytes ? Handshake - ACK, NAK, STALL –Report status of data transaction...
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Tài liệu Design of a Powerline Home Automation System pdf
... complete home alarm system, but merely illustrates that the home automation system can interface with a larger existing alarm system The alarm interface unit provides the home alarm system with an arm/disarm ... very important, as it means that on a noisy powerline circuit, home automation signals can be sent reliably, as long as the rate of transmission is low enough Since a home automation system does ... to ground, neutral to live and neutral to ground Neutral to ground has the advantage of safety, but also the disadvantage of the fact that neutral is usually grounded at the transformer, so no...
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Tài liệu SCRIBE: The design of a large-scale event notification infrastructure? doc
... disseminate the events published in the topic Pastry and Scribe are fully decentralized, all decisions are based on local information, and each node has identical capabilities Each node can act as a ... publisher, a root of a multicast tree, a subscriber to a topic, a node within a multicast tree, and any sensible combination of the above Much of the scalability and reliability of Scribe and Pastry ... select alternative paths Both these schemes have some disadvantages The mechanisms that perform packet duplication consume additional bandwidth, and the mechanisms that select alternative paths...
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Tài liệu Báo cáo khoa học: "DESIGN OF A KNOWLEDGE-BASED REPORT GENERATOR" doc
... coordinate-sentence, subordinate-sentence, subordinate-participial-clause, prepositional-phrase, and others Semantic analysis of a sample of natural text stock reports discloses that a hierarchy of ... requirements of the report generator Research in machine translations and text understanding9 has demonstrated that not only does naturally generated text disclose the lexicon and grammar of a sublanguage, ... but it also reveals the essential semantic classes and attributes of a domain of discourse, as well as the relations between those classes and attributes Thus, samples of actual text may be used...
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Báo cáo khoa học: Molecular design of a nylon-6 byproduct-degrading enzyme from a carboxylesterase with a b-lactamase fold ppt
... 203–206 Kato K, Fujiyama K, Hatanaka HS, Prijambada ID, Negoro S, Urabe I & Okada H (1991) Amino acid alterations essential for increasing the catalytic activity of the nylon-oligomer degradation enzyme ... Journal compilation ª 2009 FEBS Y Kawashima et al of a tetrahedral intermediate; (c) formation of an acyl enzyme and transition to an open form; and (d) deacylation [12] We have concluded that Asp181-COO) ... Shibata N, Takeo M, Negoro S & Higuchi Y (2005) Crystallization and x-ray diffraction analysis of 6-aminohexanoate-dimer hydrolase from Arthrobacter sp KI72 Acta Crystallogr F61, 928–930 Hatanaka...
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Từ khóa: a high capacity glass cable network for data transmissionoverview and design of a campus networkdesign of a programdesign of a usb device driverthe design of a computer languagedesign of a machinedesign of a knowledgebaseddesign of a simple machinedesign of a dc machinedesign of a milling machinedesign of a welding machinedesign of a sewing machinedesign of a turing machinedesign of a machine gundesign of a washing machineNghiên cứu sự biến đổi một số cytokin ở bệnh nhân xơ cứng bì hệ thốngBáo cáo quy trình mua hàng CT CP Công Nghệ NPVNghiên cứu tổ chức chạy tàu hàng cố định theo thời gian trên đường sắt việt namGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitNGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWAN SLIDEPhát triển mạng lưới kinh doanh nước sạch tại công ty TNHH một thành viên kinh doanh nước sạch quảng ninhTrả hồ sơ điều tra bổ sung đối với các tội xâm phạm sở hữu có tính chất chiếm đoạt theo pháp luật Tố tụng hình sự Việt Nam từ thực tiễn thành phố Hồ Chí Minh (Luận văn thạc sĩ)Phát triển du lịch bền vững trên cơ sở bảo vệ môi trường tự nhiên vịnh hạ longNghiên cứu tổng hợp các oxit hỗn hợp kích thƣớc nanomet ce 0 75 zr0 25o2 , ce 0 5 zr0 5o2 và khảo sát hoạt tính quang xúc tác của chúngNghiên cứu khả năng đo năng lượng điện bằng hệ thu thập dữ liệu 16 kênh DEWE 5000Tìm hiểu công cụ đánh giá hệ thống đảm bảo an toàn hệ thống thông tinThơ nôm tứ tuyệt trào phúng hồ xuân hươngChuong 2 nhận dạng rui roBT Tieng anh 6 UNIT 2Giáo án Sinh học 11 bài 15: Tiêu hóa ở động vậtGiáo án Sinh học 11 bài 15: Tiêu hóa ở động vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtChiến lược marketing tại ngân hàng Agribank chi nhánh Sài Gòn từ 2013-2015