Investigation and design of novel spatial power combiner

... Thanh, Nguyen Anh Tuan, Bach Gia Duong, Research, Design And Fabrication Of The 45W And The 200W, L-Band Power Amplifier Using The Modern Microstrip Technology For Application In The National ... have also investigated the S11 factor of the power divider Wilkinson on network analyzer, the result was relatively similar to that of the simulink model Afterthat we have measu...

Ngày tải lên: 22/03/2014, 11:20

... construction of backbones for wireless sensor networks, that is, subsets of nodes that span the network, and all other nodes are within one hop from one of them Such structures can be used for a million ... push forward Note that the work applies not only to sensor networks, but to general wireless networks as well, and should be read with this in mind You have got them...

Ngày tải lên: 22/06/2014, 19:20

... D´ez, E Martos, F J Ca˜ ete, and J T Ene ı n trambasaguas, Analysis of timing recovery schemes for DMT systems over indoor power-line channels,” in Proceedings of the 49th Annual IEEE Global ... performance of a conventional DMT timing recovery scheme designed for LTI channels has been assessed when employed over indoor power lines The two main causes th...

Ngày tải lên: 22/06/2014, 20:20

... logarithm of K+ concentration (inset of a) and logarithm of Na+ concentration (inset of b) S = electrode slope towards the logarithm of the relevant cation concentration Reproduced with permission from ... separation -based applications [30–32] As a continuation of the work on the Pt-coated nanoporous alumina membrane electrode, the direction of my honors year research pr...

Ngày tải lên: 10/09/2015, 09:13

... INVESTIGATION OF NEW PROPERTIES AND APPLICATIONS OF QUADRUPLEX DNA AND DEVELOPMENT OF NOVEL OLIGONUCLEOTIDEBASED TOPOISOMERASE I INHIBITORS WANG YIFAN (B.Sc., Soochow University, China) ... 1.3.1 Discovery of i- Motif Form of DNA 11 1.3.2 Stoichiometries and Topologies of i- Motif DNA 11 ii 1.3.3 Possible Biological Role of i- Motif Structure...

Ngày tải lên: 11/09/2015, 16:04

... rigid core exert hindrance to self- assembly whereas the pyrimidine groups stabilized the self- assembly of jacketed polymers A series of novel jacketed liquid crystalline polymers, in which the terphenyl ... expected to help the self- assembly of the polymers The length of the alkyl chain and position of the alkyl chain on the mesogenic units appears to have s...

Ngày tải lên: 16/09/2015, 17:11

... of polymers 3a, 3b and 3c were measured in chloroform solution The absorption and emission spectra of the polymers are shown in Fig .5. 3 and the values as given in Table 5. 2 The UV spectrum of ... = 5. 2Hz, CCH(O)-, H), 4 .5 (d, J = 5. 5 Hz, O-CH2-, H), 2.7 (s, -OH, H) 13 CNMR ( 75. 4 MHz, CDCl3, δ ppm) 154 .2, 137.2, 134.7, 127.7, 126.7, 126.0, 1 25. 7, 1 25. 5, 121.0,...

Ngày tải lên: 16/09/2015, 17:11

... CDCl3, δ ppm): 171, 149 .80, 149 .45 , 141 .17, 137.08, 136.62, 135.76, 1 34. 62, 1 34. 49, 133.79, 130.59, 129.33, 128.88, 126.63, 1 24. 90, 1 24. 07, 123 .45 , 113.72, 77.33, 76.91, 76 .48 , 69.11, 31.79, 30.79, ... 2θ1/° 2θ2/° 2θ3/° 2 4/ ° 2θ5/° d1(Å) d2(Å) d3(Å) d4(Å) d5(Å) 2 .46 2.86 P1(DBSA)0.5 3.02 20.1 P1 4. 91 7 .42 19.8 35.9 30.6 29 .4 17.9 11.9 4. 5 4. 4 The XRD diffraction pat...

Ngày tải lên: 16/09/2015, 17:11

... 4H), 3. 86 (s, Ar-O-CH3, 3H), 3. 78 (s, Ar-O-CH3, 3H), 3. 77 (s, Ar-O-CH3, 3H), 2.20 (b, -C-OH, 1H) 13 C NMR (75.4 MHz, CDCl3, δ ppm) 158.7, 151.2, 149.4, 131 .4, 130 .4, 129.7, 129 .3, 114.6, 1 13. 5, ... 150.4, 130 .4, 129.7, 129 .3, 128.9, 127.8, 118.0, 115 .3, 114 .3 (ArC), 69.6 (O-CH2-), 56 .3 (O-CH3), 31 .8, 29.5 (-CH2-), 13. 4 (-CH3) MS (EI): m/z: 474.4, 420 .3, 36 4 .3, 30 7....

Ngày tải lên: 16/09/2015, 17:11

... 131 .2, 124 .4, 122 .0, 117.5, 114.8, 106.4, 92. 4 (Ar-C), 68.8 (O-CH-), 31 .2, 28 .9, 28 .8, 28 .7, 28 .6, 28 .5, 28 .4, 25 .4, 21 .9 20 .2 (-CH2-), 13.8 (-CH3) MS (ESI): m/z: 434.3, 22 6.1, 23 8.1, 21 2.1, ... 131.5, 128 .6, 128 .2, 127 .2, 115.9, 114.6, 106 .2 (Ar-C), 71.7, 69.5 (O-CH-), 318, 29 .5, 29 .4, 29 .3, 29 .2, 29 .1, 29 .0, 25 .9, 22 .6 (-CH2-), 13.9 (-CH3)...

Ngày tải lên: 16/09/2015, 17:11

... enhanced in the selfassembly of the novel polymers 53 2.1.4 Conclusion A series of novel jacketed polymers were synthesized, and characterized using GPC, DSC, TGA, FTIR, NMR, and X-ray diffraction ... properties of jacketed polymers in which the main chain is sterically crowded with laterally attached rigid side chains17-19 Here we report the synthesis of a series...

Ngày tải lên: 16/09/2015, 17:11

... of AC/ DC mode (Output inductance Lout of DC /AC mode): Lin = 6.74mH • Input capacitance of AC/ DC mode (Output capacitance Cout of DC /AC mode): Cin = 3.76uF • DC capacitor: Cdc = 600uF For AC/ DC ... relationship omitted for AC/ DC operation This capacitor block will be added to standard cell if the cell works in DC /AC mode Hence, the following para...

Ngày tải lên: 29/09/2015, 12:52

... “Plug-n-Play” using standard cells 1.2.2 Conceptual Design of A Universal Power Electronic Cell Power electronic converters can be broadly classified as DC/ DC, DC/ AC, AC /DC and AC/ AC converters We can ... applications: a )DC to AC inverter, b )AC to DC converter, c )DC to AC motor controller, d )AC to DC 18 boost converter and e )DC to DC boost...

Ngày tải lên: 29/09/2015, 12:55

... that make it acts as an open circuit and also the tank circuit appears to be a Design and Development of a CMOS Power Amplifier for Digital Applications 34 CHAPTER 3: Fundamentals of Power Amplifier ... Scattering Design and Development of a CMOS Power Amplifier for Digital Applications 40 CHAPTER 4: Power Amplifier: Design Implementa...

Ngày tải lên: 04/10/2015, 10:25

... Testing of Prototypes 46 3.4.1 Results of Design 48 3.4.2 Results of Design 50 Discussions 53 Chapter 4: Investigation and Design of Novel Spatial Power Combiner 56 4.1 Investigation 56 4.2 Design of ... investigation, design and testing results of these prototypes lead to the creation of the novel spatial power combiner in Chapter Chapter repo...

Ngày tải lên: 08/11/2015, 17:00