protocols performance and open issues

Design Of Linear RF Outphasing Power Amplifiers Artech House

Design Of Linear RF Outphasing Power Amplifiers Artech House

... influence of wireless standards on power amplifier performance requirements Details on wireless theory and communication theory can be found in [1–5] Cellular wireless systems and standards have been ... Outphasing Power Amplifiers wireless standards like wideband CDMA (WCDMA) and CDMA2000 demand even more strict requirements on the power amplifier linearity performance [12] One related problem ... spectrum—both out-of-band interference and inband distortion Efforts have been made to relate quadrature error to system linearity performance [39] Due to its inherent randomized nature, quadrature...

Ngày tải lên: 12/10/2016, 13:22

215 536 0
Free telecollaboration 2.0 tools and activities for enhancing intercultural communicative competence

Free telecollaboration 2.0 tools and activities for enhancing intercultural communicative competence

... Identity, Taboos and Stereotypes, Holidays, Education and Entertainment, Language, People and Places, and Social Issues Because “Research has proven that the negotiation of meaning and the resultant ... knowledge, and skills in addition to linguistic, sociolinguistic, and discourse competence The attitudes include curiosity and openness as well as readiness to see other cultures and the speaker’s ... required knowledge is “of social groups and their products and practices in one’s own and in one’s interlocutor’s country, and of the general processes of societal and individual interaction” (p 51)...

Ngày tải lên: 03/03/2015, 09:58

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A Study on Using English Songs in Teaching Listening Skill to Improve the Efficiency and Motivation for First-Year Non-English Major Students at Hai Duong Medical Technical University

A Study on Using English Songs in Teaching Listening Skill to Improve the Efficiency and Motivation for First-Year Non-English Major Students at Hai Duong Medical Technical University

... trained and energetic which is a very good condition for HMTU They are both males and females, and all of whom graduated from Ha Noi National University, Ha Noi University and Ha Noi Open University ... requiring the same skills of prediction, hypothesizing, checking, revising, and generalizing that writing and reading demand; and these authors present specific exercises to make students active listeners ... expressions and sets of utterances that act to create meaning, connecting linguistic cues to non-linguistic and paralinguistic cues, using background knowledge to predict and later to confirm meaning and...

Ngày tải lên: 15/07/2015, 12:57

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Tiêu chuẩn Châu Âu EC4: Kết cấu bê tông cốt thép liên hợp phần 2: Thiết kế cầu (Eurocode4 BS EN1994 2 e 2005 Design of composite structures part 2: General rules and rules for bridges)

Tiêu chuẩn Châu Âu EC4: Kết cấu bê tông cốt thép liên hợp phần 2: Thiết kế cầu (Eurocode4 BS EN1994 2 e 2005 Design of composite structures part 2: General rules and rules for bridges)

... Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom ... Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION ... with European standards (e.g the Council Directive 89/106/EEC on construction products - CPD - and Council Directives 93/37/EEC, 92/50/EEC and 89/440/EEC on public works and services and equivalent...

Ngày tải lên: 11/12/2016, 12:04

96 735 4
Báo cáo sinh học: "Estimating variances and covariances for bivariate animal models using scaling and transformation" pot

Báo cáo sinh học: "Estimating variances and covariances for bivariate animal models using scaling and transformation" pot

... with and var(e l ) l and var(e I and e and e are uncorrelated, and the ) e Q ’;1 fixed effects #i and (3 have no elements in common, and the random effects u , i 2 l , l u e and e normally distributed ... vectors Yl and y are of length n and n and matrices X X Z and Z are of size n t n x m and n x m Our 2 , x, l2 i x n t ,, l2l motivation was a case when a trait Yl was measured on males and y was ... estimate genetic correlations between male and female performance when the sexes were reared in different environments and between growth and reproductive traits, and these models not directly fit into...

Ngày tải lên: 09/08/2014, 18:21

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Báo cáo sinh học: "Estimating variances and covariances for multivariate animal models by restricted maximum likelihood" pot

Báo cáo sinh học: "Estimating variances and covariances for multivariate animal models by restricted maximum likelihood" pot

... gives with residual covariance matrix into l T Q- Using that = (Q’)- where W and rcw stand in turn for X and nf, and Z and nr, it o o that R- can be factored from the coefficient matrix in the MME ... sums of squares and crossproducts between traits on the original scale, Y ly’y?), 1, and expand the first row and column correspondingly, ie replace X’y* by q columns X!y! , and Z’y* by columns ... traits Let n = N/q, nr =NR/q and n f =NF/q denote the number of records, random effects levels and fixed effects levels per trait, respectively X of o order n x n f and Z of order n x nr are then...

Ngày tải lên: 14/08/2014, 20:20

17 171 0
Longman-Grammar and Vocabulary for Cambridge Advanced and Proficiency (2)

Longman-Grammar and Vocabulary for Cambridge Advanced and Proficiency (2)

... and William, Sally and Claire for their untold patience John Eckersley for his generosity and support Clive, Judith and the staff and students at BEET Language Centre, Bournemouth The staff and ... looks, for example, at verb and noun structures, adverb and adjective structures, and ways of linking complex sentences and texts It also provides information on style and register, for example ... Section B understand what is being said in the Paper understand and speak to the examiner and other candidates in Paper The grammar and vocabulary in this book will be a great help i Problem...

Ngày tải lên: 05/10/2012, 09:51

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CFD for hydrodynamic efficiency and design optimization of key elements of SHP

CFD for hydrodynamic efficiency and design optimization of key elements of SHP

... the operation and performance of turbines, and can cause dangerous hydropneumatic effects, such as noise and vibrations 1.4 Draft tube and tailrace Another challenge is to understand the hydrodynamic ... contracting and gives rise to new flow separation and thus to energy losses The formed vortices, which detach and disintegrate towards downstream, cause valve and pipe vibrations and give rise ... intakes, draftubes and tailraces and turbine operation [8, 9] To avoid separated flow zones, with non uniform velocity distribution and to minimize head losses, changes on inlet and outlet walls...

Ngày tải lên: 05/09/2013, 14:58

16 490 0
Grammar and Vocabulary for Cambridge Advanced and Proficiency - Modal verbs 2

Grammar and Vocabulary for Cambridge Advanced and Proficiency - Modal verbs 2

... tentative) Would you mind giving me a hand? You couldn't give me a hand, could you? Do you think you could give me a hand? Can you give me a hand? Give me a hand, would you? (= more direct) Note ... a hand with the washing up $1 wasn't rushed oflmyfeet (conditional willingness) We occasionally use shall with and we: told you I'd succeed and I shall! (= strong intention) We use won't and ... (I and we) intention (I and we) offers (I and we) official orders asking for advice I think we shall get back early next week W e shall g v e ourfinal decision tornorrow Shall I g v e you a hand?...

Ngày tải lên: 25/10/2013, 18:20

18 625 5
Grammar and Vocabulary for Cambridge Advanced and Proficiency - Verb complamentation 2

Grammar and Vocabulary for Cambridge Advanced and Proficiency - Verb complamentation 2

... to England coming to England to come to England come to England coming to England to come to England come to England coming to England coming to England coming to England O (1) regret (2) intend ... Entry test a the roorn rushed Peter, looking hot and flushed (or: the roorn, looking hot and flushed, rushed Peter) b he is opening (or: should open) a restaurant at his age is unbelievable c ... went the pound and down went the value of exports b In came the new technocrats and out the old guard she walked and back came those old c forgotten feelings d W g o the witches and on comes Macbeth...

Ngày tải lên: 25/10/2013, 18:20

49 465 1
TYPE 2 DIABETES - National clinical guideline for management in primary and secondary care (update) pdf

TYPE 2 DIABETES - National clinical guideline for management in primary and secondary care (update) pdf

... assessment and management of overweight and obesity in adults and children’, NICE clinical guideline no 43 (2006) q ‘Type diabetes: diagnosis and management of type diabetes in children, young people and ... systematic and explicit methods to identify, select and appraise relevant studies, and to extract, collate and report their findings It may or may not use statistical meta-analysis 4 Glossary and definitions ... clinical guideline no 43 on the assessment and management of overweight and obesity in adults and children and clinical guideline no 48 which gives dietary and lifestyle advice post-MI Overlap with...

Ngày tải lên: 08/03/2014, 14:20

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UNIT 2. UNDERSTANDING NEEDS AND ASSESSING OPPORTUNITIES LESSON 4. SKILLS AND RESOURCES FOR AN ONLINE COMMUNITY doc

UNIT 2. UNDERSTANDING NEEDS AND ASSESSING OPPORTUNITIES LESSON 4. SKILLS AND RESOURCES FOR AN ONLINE COMMUNITY doc

... and social barriers Understanding Needs and Assessing Opportunities - Skills and resources for an online community - page What is capacity? Do we have enough skills and resources to carry out ... must be selected, and the communication flow must be created and maintained Understanding Needs and Assessing Opportunities - Skills and resources for an online community - page How to assess capacity ... responsible? What is the capacity of the stakeholder to handle this activity? The Alfa Radio station Understanding Needs and Assessing Opportunities - Skills and resources for an online community - page...

Ngày tải lên: 08/03/2014, 20:20

12 524 0
Purchasing Processing Equipment and Vehicles for Recycling Operations pdf

Purchasing Processing Equipment and Vehicles for Recycling Operations pdf

... Variety of brands used: Toter, Schafer, Dandux, Cascade, Poly‐Trux Standard Curb Carts 35, 65, and 95 gallon Tip Carts and 2 yard Hampers ½ and ¾ yard ½ and ¾ yard Busch Systems • • • 550 standard interior stations in 130 general‐fund buildings ... This presentation, the audio recording and related materials will be posted  on CURC’s Webinar Archive at curc3r.org Join us for our next webinar: J i f bi Recycling Education and Recycling Education and Awareness: Tools, Tips and ... Metal Trash Construction and demolition Organics / pulped material Service Box Truck  University reuse items University reuse items Exterior recycling and E terior re lin and miscellaneous items ...

Ngày tải lên: 17/03/2014, 14:20

36 237 1
Centre for efficiency and productivity analysis working papers pdf

Centre for efficiency and productivity analysis working papers pdf

... Grosskopf and their associates Three principal options are available in the computer program The first involves the standard CRS and VRS DEA models (that involve the calculation of technical and scale ... options are: Standard CRS and VRS DEA models that involve the calculation of technical and scale efficiencies (where applicable) These methods are outlined in Fare, Grosskopf and Lovell (1994) ... combinations C and D are the two efficient DMU’s which define the frontier, and DMU’s A and B are inefficient DMU’s The Farrell (1957) measure of technical efficiency gives the efficiency of DMU’s A and...

Ngày tải lên: 22/03/2014, 22:20

50 419 0
Báo cáo khoa học: NovelN,N¢-diacyl-1,3-diaminopropyl-2-carbamoyl bivalent cationic lipids for gene delivery – synthesis,in vitro transfection activity, and physicochemical characterization docx

Báo cáo khoa học: NovelN,N¢-diacyl-1,3-diaminopropyl-2-carbamoyl bivalent cationic lipids for gene delivery – synthesis,in vitro transfection activity, and physicochemical characterization docx

... chain length, quaternary ammonium head and counter-ion species, and examined their biological performance Spacer modications were studied in cholesterol-based and aliphatic gemini cationic lipids ... collapsed at 49 mNặm)1 and 39 A2 At 37 C, the two-dimensional transition was absent and only a liquid-expanded state was evident For all derivatives, molecular dimensions increased and compression forces ... chloroform and loaded onto a silica gel column (26 ã 2.8 cm) The column was eluted sequentially with 100 mL chloroform, and 1, 3, 5, 7, 8, 9, 10, 12 (300 mL) and 15% methanol chloroform The 10% and...

Ngày tải lên: 23/03/2014, 07:20

15 319 0
aluminum recycling and processing for energy conservation and sustainability

aluminum recycling and processing for energy conservation and sustainability

... both renewable and nonrenewable, and water and land use), global warming, ozone depletion, and release of persistent toxic substances • Regional criteria: Acidification and landfill demand • Local ... (cleaning and auxiliary heating) Recovery and handling of internal process scrap Preparation and forming of cores and molds Batching, metal treatment, and casting operations Finishing and packaging ... are being standardized with respect to methods and data Simplification and standardization will lead to more reliable, timely, and cost-effective LCIs An operational guide for ISO standards is...

Ngày tải lên: 01/04/2014, 11:38

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Financing energy efficiency and climate change migration  a guide for investors in belarus, bulgaria, kazakhstan, the russian federation, and ukraine  new york   geneva, 2005

Financing energy efficiency and climate change migration a guide for investors in belarus, bulgaria, kazakhstan, the russian federation, and ukraine new york geneva, 2005

... to maintenance and modernization, and is currently in need of major investments to reach the level that will be demanded by societies aspiring for the economic and environmental standards enjoyed ... forest, land, and other objects owned exclusively by the state The government plans to change economic guarantees between 2002 and 2010, encouraging investment and concession agreements and introducing ... 11266.3 I 100 I 'Indudes Australia, Canada, New Zealand, USA, Turkey, and Japan "Indudes Albania, Bosnia and Herzegovina, Macedonia, Croatia, and Serbia and Montenegro Source: Bulgarian National Bank...

Ngày tải lên: 04/06/2014, 16:24

253 604 0
Báo cáo hóa học: "IL-2 as a therapeutic target for the restoration of Foxp3+ regulatory T cell function in organ-specific autoimmunity: implications in pathophysiology and translation to human disease" doc

Báo cáo hóa học: "IL-2 as a therapeutic target for the restoration of Foxp3+ regulatory T cell function in organ-specific autoimmunity: implications in pathophysiology and translation to human disease" doc

... and peripheral CD4+ T cells in humans and mice, and arise during normal thymic lymphocyte development T reg cells are characterized by the constitutive expression of the IL-2Ra chain (CD25) and ... functional fitness and stability Here we first summarize the genetic and experimental evidence demonstrating a role for IL-2 in autoimmunity, mainly through the study of the NOD mouse model, and analyze ... numbers and functions Introduction Peripheral immune tolerance requires a finely controlled balance between maintaining tolerance to self-antigens and mounting protective immunity against enteric and...

Ngày tải lên: 18/06/2014, 16:20

12 574 0
NEPA and Environmental Planning : Tools, Techniques, and Approaches for Practitioners - Chapter 2 pot

NEPA and Environmental Planning : Tools, Techniques, and Approaches for Practitioners - Chapter 2 pot

... documents and studies, and other related or planned projects were identified during this phase Information such as keywords, memories (e.g., ideas and concepts), issues and concerns, and assumptions ... ability to implement performance measures and thresholds, • ability to evaluate and predict eventual outcomes, • monitoring criteria and methods that can be employed, and • cost and agency commitment ... cost and other factors in the analysis and decision-making process An EIS analysis must provide a “full and fair discussion” of impacts and reasonable alternatives.12 An EIS must explore and objectively...

Ngày tải lên: 18/06/2014, 19:20

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