current state of the art

... which the device is attached to the body, the convenience of use of the device, the effect of the additional weight of the device on the amount of effort expended by the wearer, and finally the ... of the order of 20 rpm Yet, the higher the gear ratio, the greater the losses due to friction, and the higher the weight of the device These considerations, together with the metabolic cost of ... devices use the energy from the relative motion between the foot and the ground during the stance phase (the phase in which the foot is on the ground) Others use the energy from the bending of the shoe

Ngày tải lên: 19/06/2014, 08:20

... reveals the fact that 90% of the time is consumed by the processes defined above. The b asic optimization of the core is thus done to pro- vide acceleration to 90% of the code. Thus, depending on the ... handle the streaming data between the algorithms. SODA satisfies the throughput requirements of the 2 Mbps W-CDMA protocol (and of the 24 Mbps of the 802.11a protocol) running at 400 MHz. The area ... correctly demodulate the OFDM symbol, it is very important to make a good estimat e of the response of the channel and equalize the distortions caused to the transmitted signal. OFDM based commu-

Ngày tải lên: 21/06/2014, 03:20

... to the other party If the other party has the right key to the lock, then the party can open and read all the messages in the box The security of the symmetric cipher depends on the key (the ... individual properties The basic idea of the protocol is that one party challenges the second party, for example, by sending a random number The challenged party then has to answer with the correct response ... applications and business models, IT security will be one of the central technologies for the next generation of vehicles After a state- of- the- art overview of IT security in vehicles, we give a short introduction

Ngày tải lên: 22/06/2014, 19:20

... result from a DFT transform of an input signal block. For the determination of the filter weights, the knowl- edge of the distribution of the real and imaginary parts of Signal Processing in High-End ... subtracted from the signal picked up by the front microphone. The directivity pattern of the system is defined by the ratio r of the internal delay T i and the external delay due to the microphone ... sampling rate of 20 kHz. The current feedback path is highly dependent on many pa- rameters of which the four most important are (i) the type of the hearing aid: behind -the- ear (BTE) or in -the- ear

Ngày tải lên: 23/06/2014, 01:20

... STATE? ? ?OF? ? ?THE? ? ?ART? ?? OF? ??QUANTUMDOT SYSTEMFABRICATIONS  EditedbyAmeenahAl‐Ahmadi            State- of- the- Art of Quantum Dot System Fabrications ... these of the individual contributors and not necessarily those of the editors or publisher. No responsibility is accepted for the accuracy of information contained in the published chapters. The ... teresearch workon? ?the? ??field? ?of? ??quantumdotsystems. We are mostgratefultoallauthors? ?of? ? ?the? ?? chaptersforhighlighting? ?the? ??importantissue? ?of? ? ?the? ??potentialapplications? ?of? ??quantum dotsystemwithahighquality

Ngày tải lên: 26/06/2014, 23:20

... STATE? ? ?OF? ? ?THE? ? ?ART? ?? OF? ??QUANTUMDOT SYSTEMFABRICATIONS  EditedbyAmeenahAl‐Ahmadi            State- of- the- Art of Quantum Dot System Fabrications ... these of the individual contributors and not necessarily those of the editors or publisher. No responsibility is accepted for the accuracy of information contained in the published chapters. The ... teresearch workon? ?the? ??field? ?of? ??quantumdotsystems. We are mostgratefultoallauthors? ?of? ? ?the? ?? chaptersforhighlighting? ?the? ??importantissue? ?of? ? ?the? ??potentialapplications? ?of? ??quantum dotsystemwithahighquality

Ngày tải lên: 27/06/2014, 00:20

... STATE? ? ?OF? ? ?THE? ? ?ART? ?? OF? ??QUANTUMDOT SYSTEMFABRICATIONS  EditedbyAmeenahAl‐Ahmadi            State- of- the- Art of Quantum Dot System Fabrications ... these of the individual contributors and not necessarily those of the editors or publisher. No responsibility is accepted for the accuracy of information contained in the published chapters. The ... teresearch workon? ?the? ??field? ?of? ??quantumdotsystems. We are mostgratefultoallauthors? ?of? ? ?the? ?? chaptersforhighlighting? ?the? ??importantissue? ?of? ? ?the? ??potentialapplications? ?of? ??quantum dotsystemwithahighquality

Ngày tải lên: 27/06/2014, 00:20

... measured results of the electromagnetic effects of the helicopter body. 13 Accurate characterization of the antenna performance requires an exact replica of the vehicle. McCartney also presented ... great deal of attention over the years, with these critical system aspects often becoming the key drivers in overall system performance. For example, McCartney described the performance of a helicopter-mounted ... and Best. The behavior of each of these designs is carefully modeled to better understand their fundamental operating principles. The paper also provides an insightful discussion of metrics

Ngày tải lên: 29/06/2014, 14:20

... problem The amount of data for the network training depends on the network structure, the training method, and the complexity of the particular problem or the. .. during the learning ... nodes often corresponds to the forecasting horizon There are two types of forecasting: ... Conclusions and the future We have presented a review of the current state of the ... (arc weights) the model has to estimate From the point of view of statistics, as the number of estimated parameters in the model goes up, the degrees of freedom for the overall

Ngày tải lên: 30/07/2014, 09:21

... that the age of the uterus does not influence the probability of the initiation of pregnancy that led to the conclusion that the age-related decline in human fertility was primarily due to the ... of oocyte donation in the. .. can be obtained (32) One of the concerns about this type of therapy was the issue of obstetrical complications that might arise as a result of the ... the age of 40 was not novel; rather, it was the observation that the success rates were not influenced by the age of the recipient that was remarkable Several reports confirmed the

Ngày tải lên: 05/08/2014, 16:20

... framework of the phenomenon and advance preliminary ideas on the causes that contribute to the development of this type of fracture. This article summarises the current state of knowledge, discusses the ... decide on the further industrial use of the wood. While these measures do not completely exclude the possibility of ring shake, they certainly minimise both the risk and the consequences of ring ... occur after the cutting of the tree either as a result of the logs being dried and sawn or even as a result of the installation of wood products [18]. After felling, two different trends of crack

Ngày tải lên: 08/08/2014, 14:20

... Blood Purification in the ICU: State of the Art A/Prof. Rinaldo Bellomo Austin & Repatriation Medical Centre Melbourne Australia ...     !$  "$ The Mediators of Sepsis (the Humoral Theory of Sepsis)  %&'()*+, /  01*'()2*+, /3014'()25, ... If done continuously, after a while one is removing the FFP given • FFP contains many of the proteins we want to remove Intermittent therapy is unlikely to be enough • No effect in Phase

Ngày tải lên: 12/08/2014, 20:50

... promise of mucociliary clearance as a direct result of the salt transport defect, promotes retention of bacteria in the mucus of the airways of patients with CF and allows them to multiply there The ... and affects the function of many other channels in the epithelium [8] Notable among them is the amiloride-sensitive epithelial sodium channel (ENaC), which accounts for the bulk of salt and water ... Review State of the Art: Why the lungs of patients with cystic fibrosis become infected and why can't they clear the infection? James F Chmiel and Pamela B Davis* Address: Department of Pediatrics,

Ngày tải lên: 13/08/2014, 13:20

... more uniform distribution of the confining pressure, thereby improving the effectiveness of the confining rein- forcement. In the case of NSC, 30,33 the arrangement of the transverse reinforcement ... defined by two parameters: the intensity of stress in the stress block, which was designated as α 1 ; and the ratio of the depth of the stress block to the depth of the neutral axis, which was ... only, the depth of the neutral axis at ultimate conditions is generally small and the shape of the compression block becomes less important. However, in the case of columns, the depth of the neutral

Ngày tải lên: 24/10/2014, 17:26

... between them) surrounding the euhedral dolomite rhombs of the typical reactive texture The brucite crystals were, in turn, surrounded by the calcite and clay particles of the matrix The calcite of the ... exerted on the concrete Where the reactive ingredients are present in the fresh concrete the reaction begins at the contact surface of the cement paste and the aggregate particle Often the earliest ... prediction of the long-term expansion of field concrete The two methods also differ in how they approach the issues of alkali content of the mixture and the aggregate gradation Because these two

Ngày tải lên: 24/10/2014, 17:40

... thickness The number and size of windrows needed depend on the width and depth of treatment and on the capacity of the mixing machine Cement is spread on top of a partially ... undermining of the soil cement, the first layer or two is often placed up to 8 ft below the existing dry river bottom, and the ends extend approx- imately 50 ft into the embankment. The exposed ... claim conveyor at the bottom of the trough. The trough sidewalls must be at a steep and smooth enough slope to allow the stored coal to remain in a constant state of gravity flow. The Sarpy Creek

Ngày tải lên: 24/10/2014, 17:44

... report describes the state- of- the- art of finite element analysis of fracture in concrete. The two dominant techniques used in finite element modeling of fracture? ?the dis- crete and the smeared approaches—are ... that the (traction-free) crack begins to propagate. If the size of the FPZ is small compared to other dimensions in the structure, then the assumptions of LEFM lead to the conclu- sion that the ... be taken of the size of the heterogeneous struc- ture of the material. This implies that the maximum size of finite elements used to model strain softening behavior should be linked to the aggregate

Ngày tải lên: 24/10/2014, 21:58

... determining the condition constituting the end -of -service life of the concrete, and making some type of time extrapolation from the present state of the concrete to the end -of ... is the initial shear strength of the wall, Va(t) is the shear strength of the arch mechanism at time t, and Ga(t) is the degradation function of the shear strength of the ... that analyze the correlation between the degree of damage of the structure, age of the structure, and the freezing-and-thawing resistance of the structure The following

Ngày tải lên: 24/10/2014, 22:00

... the nominal strain at the tensile face of the concrete (instead of the stress in the steel), and the cover to the center of the steel d c . Both the stress in the steel and the clear concrete cover ... for the use of the pre- vious expression, substantial divergence of opinion exists as to the computation of I cr and M dec . The computation differ- ence is whether the moment of inertia of the ... (MPa); and f y = yield strength of nonprestressed reinforcement, psi (MPa). 1.6—Report objective The objective of this report is to summarize the state of the art of the current knowledge as well as

Ngày tải lên: 24/10/2014, 22:01

... the roof was not supported vertically by the exterior walls and the connection of the exterior walls (for horizontal loads) was made when the edges of the roof were in a low position due to the ... heating to be of the order of 0.75 inches at midspan of the double-tee beams. The deflection due to solar heating caused rotations at the ends of the double-tee beams and many of the double-tee ... between the wall panels, particularly at the corners of the building, to crack and disintegrate near their bottoms with the passage of time. Reconstructing the destroyed concrete does not solve the

Ngày tải lên: 24/10/2014, 22:01