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... the gross direct investment flows to sub-Saharan Africa in 2006 went to oil exporters Angola, Equatorial Guinea and Nigeria) In addition, the tax take on resource projects in Africa tends to ... Angola and Zambia in this bracket, as well as (albeit with somewhat higher risk ratings) DR Congo, Equatorial Guinea, Libya and Mozambique South African growth prospects are somewhat lower than for ... ASX indices Significant exposure to African commodities can be accessed via Canada-listed First Quantum (mining for copper and coal and gold in DRC, Zambia and Mauritania; 100% of revenues from...

Ngày tải lên: 30/10/2014, 21:25

Ngày tải lên: 24/12/2013, 06:17

... computing load of 2D DCT and quantization Moreover, to reduce the hardware cost and quantization power dissipation, we have modified the RGB quantization tables, and the quantization multipliers are ... R Quantization R-table 8-by-8 zigzag scan Entropy coding Entropy coding G1 2:1 subsample 2D 4-by-4 DCT 4-by-4 quantization G-table 4-by-4 zigzag scan G2 2:1 subsample 2D 4-by-4 DCT 4-by-4 quantization ... multiplication while quality degradation is quite little In addition, the 8-by-8 memory array between the quantizer and the LZ77 encoder is used to synchronize the operations of quantization and...

Ngày tải lên: 21/06/2014, 07:20

... assumption of flat-fading channels, [8, 9] propose trainingsequences-aided least square (LS) and linear minimum mean square error (LMMSE) channel estimators for single-relayassisted cooperative diversity ... channels First, the mean square error (MSE) bound on the proposed method is computed Then, the optimal training scheme with respect to this bound is derived By exploiting the inherent orthogonal characteristic ... M matrix A with its mth diagonal element given by am , the following inequality holds: tr A−1 ≥ M , am m=1 (17) where equality holds if and only if A is diagonal Proof (see [23, page 65]) Based...

Ngày tải lên: 22/06/2014, 00:20

... intersymbol interference (ISI) and obviating the need for complex equalization, thus greatly simplifying channel estimation/equalization task Moreover, OFDM is bandwidth efficient since the spectra ... needed in (39), hence update equation for the minimum MSE matrix should also be given If we substitute (38) in Mm+1 = E (g − gm+1 ) (g − gm+1 )† , we obtain an update equation Low-Complexity KL Expansion-Based ... converges to g in the mean square 169 SIMULATIONS In this section, the merits of our channel estimators are illustrated through simulations We choose average mean square error (MSE) and symbol...

Ngày tải lên: 23/06/2014, 00:20

... [88-91] and that identification of more than one factor, but not necessarily all factors is adequate [92] As this was a practice-based research project that is part of the investigation of identification ... Fontecha CG, Pasarin M, Ferrer M: Prevalence of low back pain and its effect on health-related quality of life in adolescents Arch Pediatr Adolesc Med 2009, 163(1):65-71 Deyo RA, Mirza SK, Turner ... Brichon-Schweitzer M: Psycho-social factors and coping strategies as predictors of chronic evolution and quality of life in patients with low back pain: A prospective study Eur J Pain 2006, 10:111 Woby...

Ngày tải lên: 13/08/2014, 15:21

... environmental events happening around us By making a social network, GreenPeace improves the quantity and quality of members who take part in protecting environment campaign People will raise their ... realized and mentioned many years ago In November 11th, 1997, Kyoto Protocol[1] of reducing Greenhouse was agreed, covers more than 170 countries in practical actions According to Word Resources ... into HTML as embedded object There are some popular embedded objects: - Adobe Flash: Provide high quality user interface with animations and behaviors The user interface and logic process can be...

Ngày tải lên: 27/10/2012, 16:40

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Ngày tải lên: 06/11/2012, 10:26

... and 4mm in thickness, and its maximum working voltage and current were 15 V and A In order to enhance heat transfer, two rectangular fin heat exchangers were amounted on the heat and cold side ... the current through the module Another is from the Joule effect, which is proportional to the square of the current through the module [4] When the input power is too low, the Peltier effect ... phenomena Thermal Science and Engineering 2002, 10(6), 31-38 [12] Takata Y, Tanaka K, Kaijima K, et al Enhancement of heat transfer with liquid-vapor phase change by photo-induced hydrophilicity Proceedings...

Ngày tải lên: 05/09/2013, 16:10

... e ) − vg he − h vg 865 (6) Equation (6) was also called as Washburn equation, which is frequently used to describe the CR phenomenon [11-12] It can be seen from Equation (6) that once the equilibrium ... long-term CR process, the Washburn equation tended to be an increasing prediction error due to the failure of the assumptions in Equation (2) In spite of this, Equation (6) is valid at the early ... Based on Equation (1) to (3), the front velocity v can be rewritten as v= Vg (he − h) h + Z R + µ2 / µ1 ( L − Z R − h) (4) Notice that µ

Ngày tải lên: 05/09/2013, 17:03

Ngày tải lên: 04/11/2013, 16:15

Ngày tải lên: 05/11/2013, 12:15

... retrieved by equation Similarity (C , S ) = n ∑ f =1 w f * sim ( C f , S f ) (3) Where C is a current/target case, S is a stored case in the case base, w is the normalized weight defined by equation ... weight (lw) defined by experts, assumed to be a quantity reflecting importance of the corresponding feature, Normalized weight (w) is calculated by equation Generally there are two ways to specify ... using equation 5, where indicates no distance and far away (largest distance) sim (C f , S f ) = − abs (C f − S f ) (5) Max (C f , S f ) − Min (C f , S f ) Function sim (Cf , Sf) in equation...

Ngày tải lên: 07/12/2013, 11:41

Ngày tải lên: 11/12/2013, 14:15

... debian If you change the hostname, be sure to specify only the hostname itself; not specify a fully qualified hostname that includes the domain name (for example, debian.ora.com) 10.2.3 Name Server ... localhost 192.168.1.10 debian.mccarty.org debian Notice that the second line gives both the fully qualified hostname, consisting of the hostname and domain name, as well as the hostname alone The...

Ngày tải lên: 14/12/2013, 13:15

... accessing it from a remote computer This should be as simple as forming a URL that includes the fully qualified hostname of your system (that is, the host and domain names); for example, http://mysystem.mydomain...

Ngày tải lên: 14/12/2013, 13:15

... base with differing needs personnel (e.g end-product users) Analysis of Quantitative data Mostly qualitative – content Qualitative analysis, grouping incidents into heterogeneous categories Typical ... methods is primarily based on literature covering the topics of CSM, and service quality measurement Service quality is distinct from customer satisfaction but the two concepts overlap considerably ... al., 1993) Customer satisfaction is not influenced only by product and service quality, but how they perceive the quality of project delivery process This feature further increases the importance...

Ngày tải lên: 15/01/2014, 15:59

... genital cutting tends to be practised in north-east Africa and in sub-Saharan Africa north of the equator The practice and type of FGC is often speci®c to particular ethnic groups, so that prevalence ... various ®elds It has been condemned as a violation of human rights; a manifestation of gender inequality and extremely damaging to sexuality and health But evidence on how common and how serious ... Trichomoniasis§§ Symptoms Abnormal vaginal discharge, itching, irritation or bad odour Cytology Squamous cell intraepithelial lesions§§ % Cut % Adjusted OR* 95% CI for OR P-value  9/481 240/427...

Ngày tải lên: 13/02/2014, 16:20

... Programmes and Research Health Promoting Schools Project – Oral Health Promotion Copenhagen: University of Copenhagen, 1995 17 Helm S Recording system for the Danish Child Dental Health Services ... the WHO Collaborating Centre for Community Oral Health Programmes and Research, University of Copenhagen and the School of Stomatology, Wuhan University Petersen et al.: School -based oral health ... programme in Wuhan City 36 Data analysis All data sheets were transferred to the University of Copenhagen and analysed by means of the SPSS system Dental caries experience was measured by caries...

Ngày tải lên: 14/02/2014, 13:20

... need to be of high quality Consistent metrics and processes for assuring quality across the postsecondary education and training landscape are essential in order to validate the quality of prior ... institutions, or by private vendors Quality assurance Education and industry measure quality with metrics and methods that differ significantly Employers measure the quality of training in terms of ... Building a Quality Assurance System to Promote Competency Based Education and Training Systems Working paper 67 Frugoli, McCarthy, and Qualter, Credentials that Count 68 Frugoli, McCarthy, and Qualter,...

Ngày tải lên: 16/02/2014, 03:20