af is ``rate control´´ or ``rhythm control´´ prefe
Báo cáo khoa học: "Clinical review: Clinical management of atrial fibrillation – rate control versus rhythm control" doc
Ngày tải lên :
12/08/2014, 20:20
... al Table Causes or precipitants of atrial fibrillation Type of disorder Examples Ischaemic heart disease Valvular heart disease Cardiomyopathy Mitral, aortic, or tricuspid valve disease Systolic/diastolic ... without haemodynamic compromise: rate control or rhythm control The necessity for cardioversion is less well established in haemodynamically stable patients with AF Despite this, the management of ... haemodynamic compromise (acute pulmonary oedema, worsening angina, or hypotension) in relation to uncontrolled AF Synchronized, direct current cardioversion is more effective and preferable to pharmacological...
- 9
- 265
- 0
Central Bank Interest-Rate Control in a Cashless, Arrow-Debreu economy: a comment on Wallace pptx
Ngày tải lên :
22/03/2014, 17:20
... role for money: “The most serious challenge that the existence of money poses to the theorist is this: the best developed model of the economy cannot find room for it The best-developed model is, ... them But this is of no analytical or theoretical significance for the equilibrium real relative prices determined by the Arrow-Debreu model The whole exercise collapses one it is realised that ... to stabilise the price level Wallace is of the opinion that the Arrow-Debreu model is the developed part of economic theory while monetary theory is underdeveloped Wallace’s intention is to bring...
- 21
- 219
- 0
Central-Bank Interest-Rate Control in a Cashless, Arrow-Debreu Economy pot
Ngày tải lên :
29/03/2014, 01:20
... satisfaction of this equality is necessary for a CE By 11 the way, while the behavior posited in the proof of claim is consistent with a CE in which ecus at both dates are worthless, that is ... , cn ) for each n and (p1 , p2 , R) is a CE, then (cn , cn ) for each 2 n and (γ p1 , γ p2 , γ R/γ ) is a CE for any (γ , γ ) ∈ R2 ++ Proof Obvious Notice that this implies that there is a sense ... Claim If (cn , cn ) for each n and (p1 , p2 , R) is a CE for ecu endowments en , t then (cn , cn ) for each n and (γ p1 , γ p2 , γ R/γ ) is a CE for ecu endowments γ en and γ en for any (γ , γ ) ∈...
- 8
- 277
- 0
Báo cáo hóa học: " Minimum-length scheduling with rate control in wireless networks: a shortest path approach" docx
Ngày tải lên :
20/06/2014, 22:20
... and rate control decisions Finally, and more importantly, we generalize existing work by considering the more realistic case of timevarying channels The rest of this paper is organized as follows ... satisfy the SINR criterion Thus, it is not clear whether allowing more concurrent transmissions (less time sharing) at lower rates is preferable to allowing fewer concurrent transmissions (more ... the algorithm is provided below: ¯ DAG-SHORTEST-PATHS(G, x0 ) topologically sort the vertices of G ¯ INITIALIZE-SINGLE-SOURCE(G, x0 ) for each vertex x taken in topologically sorted order for each...
- 15
- 376
- 0
Báo cáo hóa học: " FMO-based H.264 frame layer rate control for low bit rate video transmission" ppt
Ngày tải lên :
20/06/2014, 22:20
... distortion analysis with a rate constraint, but this is implemented with constant QP In [14], bit rate reduction is accomplished by classifying MBs into two slice groups with similar transform ... of FMO In [12], a joint source-channel rate distortion analysis is used to adapt the FMO type selection for different video scenes; however, this is only applicable to the fixed FMO types in ... as an error resilient tool for video transmission at low bit rates, careful consideration of the trade-offs is essential when error rates are high and bandwidth is limited Our approach is to consider...
- 11
- 401
- 0
báo cáo hóa học:" Adaptive access and rate control of CSMA for energy, rate, and delay optimization" docx
Ngày tải lên :
21/06/2014, 17:20
... in Section 4.1 This results in the following modified Bellman operator: (27) Therefore, we apply (27) and compute for all possible discrete states For the uncorrelated and first-order channel models ... for all values of Proof: In order to prove the theorem we show through induction that for we have and for any vector that increase and , and decrease Based on Equation (11) for optimal decision ... the proof Assuming is also monotonic for is a which completes 19 We define as optimal decision for state , however in stage k, so we can write is not an optimal decision for state so we have:...
- 46
- 468
- 0
báo cáo hóa học:" Research Article Rate Control Performance under End-User’s Perspective: A Test Tool" pptx
Ngày tải lên :
21/06/2014, 18:20
... the work of Cranley et al., our work is not supposed to be a model or architecture for QoS adaptation, but simply a tool for testing and comparing rate controllers Therefore, it is a support for ... given by (4) is stored as a QoST entry QoST is stored in a file (referenced as QoST file), to be used for different live video transmissions When a video transmission is started, the file is loaded ... EvalVid is a toolset for evaluating video quality transmitted over a real or simulated communication network The EvalVid’s purpose is to assist researchers in evaluating their network mechanisms or...
- 13
- 274
- 0
Báo cáo hóa học: " Rate Control for H.264 with Two-Step Quantization Parameter Determination but Single-Pass Encoding" ppt
Ngày tải lên :
22/06/2014, 23:20
... QP-dependent rate-distortion optimization (RDO) in H.264, a pre-analysis phase is conducted to gain the necessary source information, and then the coarse QP is decided for R-D estimation After QP-dependant ... well The rest of this paper is organized as follows In Section 2, we derive models for bit rate and distortion estimation In Section 3, our proposed rate control algorithm is presented in detail, ... process of our algorithm, which comprises of two major steps Firstly, pre-analysis is performed to break the chicken-andegg dilemma, thus obtaining the source information, which is used in determining...
- 13
- 271
- 0
Báo cáo hóa học: "Efficient Video Transcoding from H.263 to H.264/AVC Standard with Enhanced Rate Control" pot
Ngày tải lên :
22/06/2014, 23:20
... there is a need for transcoding precoded videos to H.264/AVC format However, due to its new coding features, H.264/AVC is much more different and complex than other existing standards For example, ... (intra, inter, or skipped) for each macroblock in a rate-distortion (RD) optimized fashion, minimizing a Lagrangian cost function in the form of J = D + λR, (1) where D denotes some distortion measure ... performance, this predicted MV is also taken into account for estimating the new MVs Before we describe our proposed method, let us examine the distribution of the optimal MVs obtained by performing...
- 15
- 255
- 0
Báo cáo hóa học: " Improved Bit Rate Control for Real-Time MPEG Watermarking" doc
Ngày tải lên :
23/06/2014, 01:20
... codeword Otherwise, the watermarked VLC codeword will be discarded and replaced by the host VLC codeword in the output bitstream We denote this scheme as “Hartung 1” in this paper In a more elaborate ... 2π) x e−t /2 dt and SNR = µ2 /σZ is the Z signal-to-noise ratio (SNR) of the correlator output Generally, when this correlator output SNR value is high, the corresponding BER will be low and ... (higher correlator output SNR) but more visual distortion (lower PSNR) For illustration, video frames watermarked using different bit rate control schemes with α of 100% are shown in Figure Their visual...
- 10
- 254
- 1
Báo cáo hóa học: " Source and Channel Adaptive Rate Control for Multicast Layered Video Transmission Based on a Clustering " pdf
Ngày tải lên :
23/06/2014, 01:20
... conducts his researches at LIP6 His main areas of research are networking information theory and Internet measurement and modelling He is actually the coordinator of a large research effort in Internet ... representative by out-of-date reports This is handled by an exponential weighting heuristic: at each reporting round, the weight of a cluster is reduced by a constant factor (see Algorithm 2) If the weight ... algorithms for real-time video distribution,” IEEE/ACM Transactions on Networking, vol 8, no 6, pp 720–733, 2000 [4] D Sisalem and A Wolisz, “MLDA: A TCP-friendly congestion control framework for...
- 18
- 310
- 0
Cluster weighted error rate control on datasets with multi level structures
Ngày tải lên :
08/09/2015, 17:51
... multiplicity issue in multiple hypothesis testing (MHT) Type I error is false rejection of a true null hypothesis Type II error is failure to reject a false null hypothesis The family-wise error rate ... empirical null distribution is built upon the sparsity assumption that π0 is large For nonsparse case, one may refer to the review paper Cai (2008) for more discussion This algorithm in estimating ... Thus for concave F (u), there is a critical value α∗ for the significance level α such that there is no rejection when α is less than α∗ When α is larger than α∗ , there is a limiting proportion...
- 138
- 349
- 0
Performance analysis of TCP and TCP friendly rate control flows in wired and wireless networks
Ngày tải lên :
28/11/2015, 13:34
... to my co-supervisor, Prof A L Ananda, for his encouragement, support and for providing the best work atmosphere His critical advice and suggestions helped me to focus more on work when there ... point in the network This is explained in the draft [9] under MECN 2.1.8.2 Implementation Issues for BECN We discuss as to why the use of ISQ’s for congestion notification was discouraged and what ... this thesis, characterization of TCP-friendly rate control flows for wired networks through real-time measurements and analysis of some of the major issues The second contribution of this thesis,...
- 95
- 360
- 0
báo cáo hóa học: " TLR3 signaling is either protective or pathogenic for the development of Theiler''''s virus-induced demyelinating disease depending on the time of viral infection" docx
Ngày tải lên :
19/06/2014, 22:20
... from or pathogenesis of virus-induced chronic disease is still unclear It has been reported that a dominant-negative TLR3 allele is associated with the development of herpes simplex encephalitis, ... pathogenesis after infection with single-stranded or double-stranded RNA viruses, such as lymphocytic choriomeningitis virus, vesicular stomatitis virus, and reovirus [10] Furthermore, TLR3-deficient ... immunohistochemical staining for GFAP, astrocyte marker (c, f) of spinal cord from NLM or TLR3KO-SJL mice were done at 27 dpi (DPI) Original magnification, 100x (B) Immunohistochemical staining for...
- 42
- 496
- 0
Báo cáo y học: "Is succinylcholine appropriate or obsolete in the intensive care unit" docx
Ngày tải lên :
12/08/2014, 18:21
... after administration [17] However, its duration of action is longer The duration of action of mivacurium is shorter, but it has a slower onset, the intubation conditions are comparable only after ... Cardiothorac Anesth 1990, 4:31-37 Kopman AF, Klewicka MM, Kopman DJ, Neuman GG: Molar potency is predictive of the speed of onset of neuromuscular block for agents of intemediate, short, and ultrashort ... online http://ccforum.com/content/5/5/245 10 12 13 14 15 16 18 review 17 commentary 11 Gronert GA: Cardiac arrest after succinylcholine Mortality greater with rhabdomyolysis than receptor upregulation...
- 3
- 300
- 0
Báo cáo y học: "Thoracic epidural anesthesia in sepsis - is it harmful or protective" pps
Ngày tải lên :
13/08/2014, 18:22
... decrease mortality during sepsis, especially as splanchnic hypoperfusion and hypoxia are said to be key factors in the development of systemic inflammatory response syndrome, sepsis and multiple organ ... presented contradictory results concerning this, with some reporting decreased mortality in older animal studies [11] and newer meta-analyses [12,13] and others reporting increased mortality in an ... epidural anesthesia is working, is very difficult, especially in clinical situations [15] Few of the studies deliver definitive proof of this Hence, the most important considerations for future studies...
- 3
- 206
- 0
Tài liệu Using a DataView to Control Edits, Deletions, or Additions in Windows Forms pdf
Ngày tải lên :
14/12/2013, 18:16
... is true, the record is not added until the EndEdit( ) method is called either explicitly or implicitly The CancelEdit( ) method of the DataRowView can be called to discard the row before it is ... can be called to discard the row before it is added If the AddNew( ) or BeginEdit( ) method of the DataRowView is called, EndEdit( ) is called implicitly on the pending row; this applies the changes ... bound on both Windows Forms and Web Forms The DataView can be customized for editing, filtering, searching, and sorting The DataView class can be used to add, edit, or delete records in the underlying...
- 3
- 532
- 0
Tài liệu Is the long-term interest rate a policy victim, a policy variable or a policy lodestar? docx
Ngày tải lên :
17/02/2014, 03:20
... did not happen for AA-rated securities All this seems to support the much-discussed “shortage of safe assets” thesis This argument is that, in times of stress or panic, investors accept very ... argued that this was necessary for viable pension provision for unsophisticated, small investors (widows and orphans was his phrase) and for university endowments (dear to his heart) This line of ... collateralised by Greek, Irish or Portuguese bonds fell by more than half from the second half of 2009 to the second half of 2010 14 When fiscal trajectories are unsustainable, this report argues...
- 39
- 514
- 0
Tài liệu Internet in China: Big Mama is Watching You - Internet Control and the Chinese Government doc
Ngày tải lên :
18/02/2014, 00:20
... accumulation of information and the direct supervision of subordinates As a result, a ‘normalizing discipline’ from the prisoners is derived Prisoners exhibit ‘anticipatory conformity’, showing ... unauthorised people.76 Furthermore, the China Internet Network Information Center (CNNIC) is responsible for the registration of domain names and the distribution of IP addresses 77 Other important ... website It is unknown what the exact list of specified websites is, nor is it known who decides what websites are put on the list The list is furthermore not centrally controlled; each network seems...
- 63
- 607
- 0