characteristics advantages and status of fuel cells

... intensity of the D-band becomes weak with increasing crystallite size of the graphite, and thus the ratio of the G-band to D-band intensity is a good measure of the degree of disorder of graphitic ... and fluorine atoms is close to the sum of the ionic radius of F (0.68 A) and half of the C-C distance of graphite (0.71 A), and the C,-C, and C& distances of the sp' configuration are slightly ... understanding of hybridization of carbon atoms is essential for constructing new forms of carbon This chapter discusses the hybridization of carbon atoms and shows that the directions of chemical...

Ngày tải lên: 05/03/2014, 15:20

... intensity of the D-band becomes weak with increasing crystallite size of the graphite, and thus the ratio of the G-band to D-band intensity is a good measure of the degree of disorder of graphitic ... and fluorine atoms is close to the sum of the ionic radius of F (0.68 A) and half of the C-C distance of graphite (0.71 A), and the C,-C, and C& distances of the sp' configuration are slightly ... understanding of hybridization of carbon atoms is essential for constructing new forms of carbon This chapter discusses the hybridization of carbon atoms and shows that the directions of chemical...

Ngày tải lên: 14/03/2014, 16:20

... intensity of the D-band becomes weak with increasing crystallite size of the graphite, and thus the ratio of the G-band to D-band intensity is a good measure of the degree of disorder of graphitic ... and fluorine atoms is close to the sum of the ionic radius of F (0.68 A) and half of the C-C distance of graphite (0.71 A), and the C,-C, and C& distances of the sp' configuration are slightly ... understanding of hybridization of carbon atoms is essential for constructing new forms of carbon This chapter discusses the hybridization of carbon atoms and shows that the directions of chemical...

Ngày tải lên: 27/06/2014, 17:20

... intensity of the D-band becomes weak with increasing crystallite size of the graphite, and thus the ratio of the G-band to D-band intensity is a good measure of the degree of disorder of graphitic ... and fluorine atoms is close to the sum of the ionic radius of F (0.68 A) and half of the C-C distance of graphite (0.71 A), and the C,-C, and C& distances of the sp' configuration are slightly ... understanding of hybridization of carbon atoms is essential for constructing new forms of carbon This chapter discusses the hybridization of carbon atoms and shows that the directions of chemical...

Ngày tải lên: 27/06/2014, 17:20

... of 250 patients (31.2%) and 84 of 254 (33.1%), respectively Hospital mortality was also similar between the standard insulin group and the intensive insulin group: 96 of 250 (38.4%) and 102 of ... days was 32.4% (81 of 250) in the standard insulin group and 36.6% (93 of 254) in the intensive insulin group ICU mortality was similar for patients of the standard insulin group and in those from ... suspension and the administration of 200 cc 10% glucose bolus with good response and no neurological damage The median length of stay in the ICU, the duration of mechanical ventilation and the rate of...

Ngày tải lên: 25/10/2012, 10:35

... , Mechatronic Ltd) was used and the lever arm calculated as the distance between knee joint space and contact point of force transduction The best of three trials of each leg were taken for further ... between pre and post-training in any group Subjects reached mmol [lactate] at loads of 89 w ± 8,2 (pre) and 86 w ± 9,7 (post), 99 w ± 14,8 (pre) and 95 w ± 13,3 (post), 89 w ± 6,2 (pre) and 92 w ... beneficial effects of exercise on skeletal muscles such as improvements of endothelial function [8] and an increased enzyme capacity of energy metabolism [13] there are two specific effects of contracting...

Ngày tải lên: 26/10/2012, 10:04

... tremendous growth of the Internet both in size and in the number of users generated one of the most demanding challenges, namely how to provide a fair and efficient allocation of available network ... number of ISPs are rapidly extending their network infrastructures and resources to handle emerging applications and a growing number of users However, in order to enhance the performance of an ... increase in the demand of several real-time and multimedia applications that have high Quality of Service (QoS) demands Moreover, the Internet has evolved into the main platform of global communications...

Ngày tải lên: 26/10/2013, 17:15

... 2004 [8] D Katabi, M Handley, and C Rohrs Congestion control for high bandwidth-delay product networks Proceedings of ACM SIGCOMM’02, August 2002 [9] I Stoica, S Shenker, and H Zhang Core-stateless ... http://www.iponair.de/ [18] D-M Chiu and R Jain Analysis of the Increase and Decrease Algorithms for Congestion Avoidance in Computer Network Computer Networks and ISDN Systems, 17:1-14, 1989 [19] ... High BandwidthDelayProductNetworks,www.ana.lcs.mit.edu/ dina/XCP [16] S Floyd, M Handley, J Padhye, and J Widmer Equation-based congestion control for unicast applications In Proceedings of ACM...

Ngày tải lên: 24/12/2013, 07:16

... integration of the planner and controller to achieve stable and robust system performance 2.2 New Motion Reference and Integration of Planning and Control The event-based planning and control ... Tracking and Manipulation Lei, Ghosh I Introduction Modeling of the Tracking and Grasping System Estimation of the Motion Field of the Reference Point The Control Design for Tracking and Grasping ... Analysis of Robot Dynamics and Control Arimoto Introduction Passivity of Robot Dynamics and Nonlinear Position-Dependent Circuits SP-ID Control Adaptability and Learnability Realization of FrictionIGravity-Free...

Ngày tải lên: 01/01/2014, 20:12

... sizeof(CCCFactory)); CUDPBlast* cchandle = NULL; int size = sizeof(CUDPBlast); UDT::getsockopt(usock, 0, UDT_CC, &cchandle, &size); if (NULL != cchandle) cchandle->setRate(500); cchandle->setRate(1000); ... implementation and deployment of new control algorithms  Easy evaluation of new control algorithms  Application awareness support and dynamic configuration udt.sourceforge.net :: OVERVIEW >> DESIGN OF ... implementation and deployment of new control algorithms  Easy evaluation of new control algorithms  Application awareness support and dynamic configuration  Pros  Simplicity and expressiveness...

Ngày tải lên: 15/01/2014, 15:59

... intensity of the D-band becomes weak with increasing crystallite size of the graphite, and thus the ratio of the G-band to D-band intensity is a good measure of the degree of disorder of graphitic ... and fluorine atoms is close to the sum of the ionic radius of F (0.68 A) and half of the C-C distance of graphite (0.71 A), and the C,-C, and C& distances of the sp' configuration are slightly ... understanding of hybridization of carbon atoms is essential for constructing new forms of carbon This chapter discusses the hybridization of carbon atoms and shows that the directions of chemical...

Ngày tải lên: 13/02/2014, 11:20

... to reports of poor power quality and reliability of supply to factories, offices and homes Today's automated equipment and production lines require reliable and high quality power, and cannot ... internal voltage angles of the two generators and their ratio of actual to rated speed Figures 1.18(a) and (b) show the results of the fault lasting 0.1 s and (c) and (d) the results of the fault lasting ... examples of FACTS and Custom Power plant equipment and in which locations of the network they may be deployed The random nature of the power system load, the ability of a certain class of loads...

Ngày tải lên: 16/02/2014, 20:20

... discourse There was a total of 56 shiRs of control over the dialogues and we identified main classes of cues used to signal control shifts These were prompts, repetitions and summaries We also looked ... "so" might be a summary cue on the part of the speaker but we found only one example of this, although there were instances of "and" , one "now" one "but" and one "so" In our dialogues the summaries ... obvious for prompts and repetitions/summaries, with 57% of prompts occurring within topic and 67% of repetitions/summaries occurring within topic This suggests that change of topic is a carefully...

Ngày tải lên: 21/02/2014, 20:20

... The explicit definition of import and export and the strict separation of implementation and definition makes it possible to prove the correctness of a module in terms of its imports, without ... characteristic of the Rosetta framework For a more extensive discussion of these principles and more interesting examples we refer to Appelo and Landsbergen (1986) Leermakers and Rous (1986) ... application of the rule of that node on the resulting S-trees of its daughters (see figure I) syntactic derivation tree but labelled with names of rule meanings and basic meanings instead of syntactic...

Ngày tải lên: 22/02/2014, 10:20

... time-frame and the service properties are stable I Overview of QoS QoS has three main characteristics as below: - Availability of the service - Quality of information - Consistent delivery I Overview of ... percentile of the distribution of delay for all delivered SDUs during the lifetime of a bearer service • Traffic handling priority To specify the relative importance for handling of all SDUs ... bitrate The maximum number of bits delivered by UMTS and to UMTS within a period of time • Guaranteed bitrate The guaranteed number of bits delivered by UMTS within a period of time III QoS structure...

Ngày tải lên: 25/02/2014, 00:20

... assume only the three following states: (1) S1 and S2 are ON, S3 and S4 are OFF, (2) S2 and S3 are ON, S1 and S4 are OFF, and (3) S1 and S2 are OFF, S3 and S4 are ON It can be seen that the dc input ... angle of 30 The waveform consists of segments of the vA ; vAB =2, and vAC =2 voltages The envelope of control characteristics of the controller is shown in Fig 1.28 Four other topologies of the ... rectifiers, and the PWM mode In the square-wave mode, so named because of the resultant shape of the output voltage waveform, each switch of the inverter is turned on and off only once per cycle of the...

Ngày tải lên: 05/03/2014, 09:43

... ​u​ PCC, and IC, and the profit level when maximiz, _  ing profits subject to these constraints is zero   II.  Nonlinear Contracting with Known β and β   ​ ˆ ​   We begin our analysis of nonlinear ... ones, and this and further overborrowing lowers ex ante utility Our proof makes use of these features, but no other feature of the utility functions in Proposition VOL 100 NO   Heidhues and K​    ... trade-off between increasing efficiency for the less profitable type and decreasing the information rent paid to the more profitable type leads to a distorted outcome for the less profitable type and...

Ngày tải lên: 06/03/2014, 04:21

... details of modification process and the use of modified agent are not released Mixtures of this blend polyethylene and carbon black were performed in accordance with ratio of 2, 3, and mass% of carbon ... as a function of time has been determined Figures 1.a; 1.b and 1.c give typical examples of plots of the absorbed amount (Mt) of water, HCl 10 mass%, and HCl 20 mass% at 40, 60, and 80 oC versus ... L is thickness of the test specimen and t is diffusion time 3.1 Diffusion behaviour of water Figure shows weight change profiles of the polymers during immersion in the 40, 60, and 80 oC water...

Ngày tải lên: 14/03/2014, 13:20