Design and realization of SAW pressure sensor using aluminum nitrid

... The goal of this thesis is the design of a surface acoustic wave (SAW) pressure sensor using Aluminium Nitride (AlN) Theoretical studies, realization, and characterization of the pressure sensor ... between four sensors 11 SAW sensor and the application pressure sensor in this research 12 1.1.6.1 1.1.6.2 SAW pressure sensor with one port IDT 13 SAW pres...

Ngày tải lên: 13/11/2014, 08:38

Ngày tải lên: 11/06/2016, 12:15

... This data- processing rate is fast enough for realtime data protection in multimedia data transmission applications The proposed signal security system is suitable for both software and hardware ... updating period of the parameters of µ and x(0) could be based on the basic unit of video frame or audio frame in representing the multimedia data A New Signal...

Ngày tải lên: 23/06/2014, 01:20

... Challenges in Microwave and Millimeter- Wave ICs The higher operating frequencies of wireless applications lead to a lot of design challenges in microwave and millimeter- wave ICs that are not present ... thesis aims to propose and realize innovative circuit topologies and techniques in order to overcome design challenges in key building blocks of microwave an...

Ngày tải lên: 10/09/2015, 15:51

... 173-178 6- 12 41.4-55 .2 3-10 1.4 -2. 8 55-60 12- 16 1 .27 1.34 1 .25 27 .6-41.4 3-10 1.4 -2. 8 60-65 >24 1 .24 55 .2- 82. 7 5-10 2. 8-4 .2 PGA 185 -22 5 25 -65 6- 12 1.53 >68.9 15 -20 >6.9 PCL 58-68 - 70 >24 1.11 20 .7-34.5 ... rates of all such polymers, the structural stability of PCL permits the study of fabrication and characterization as a tissue engineering scaffold...

Ngày tải lên: 14/09/2015, 10:20

... 64. 3 51500 1.6 55.3 39. 64 PCL-PEG Raw 63.5 33000 1.6 62 44 .44 PCL-PEG Scaffold 65.3 33600 1.7 61.8 44 .30 PCL-PEG-PCL Raw 64. 4 30000 1.8 48 34. 41 PCL-PEG-PCL Scaffold 65.6 31700 1.7 47 .2 33. 84 ... (bar) Figure 4. 11: Influence of extrusion pressure on RW and porosity of the scaffolds fabricated with lay-down pattern of 0/90 and nozzle size of 500 µm 113 Chapter Fou...

Ngày tải lên: 14/09/2015, 10:23

... Chapter Five: Conclusions and Recommendations 5. 1 Conclusions A desktop robot based rapid prototyping (DRBRP) melt extrusion system was designed and developed in house ... filament diameter and consequently, the pore size and porosity A range of filament diameter (3 75 to 623 µm) and porosity ( 45 to 75% ) was obtained by varying the process parameters In spite of...

Ngày tải lên: 14/09/2015, 10:23

... accuracy of up to 2°C and the feed rate had the deposition speed accuracy of up to 3mm/min Material Loading Port Teflon Insulator Figure 3. 2: Four-axes desktop robot-based rapid prototyping system 3. 4.2 ... (0/90°, 0/60/120° and 0 /30 /60/90/120/150°) as shown in Figure 3. 4 using appropriate positioning of the robotic control system The lay-down patterns of 0/90°, 0/60...

Ngày tải lên: 14/09/2015, 11:12

... those of the tissues at the site of implantation e) Be easily fabricated to form a variety of shapes and sizes In the early days of tissue engineering, FDA approved devices and implants made of ... number of materials as well as scaffold design have been experimentally and/ or clinically studied For the treatment of tissues/organs in malfunction, one of the challenge...

Ngày tải lên: 14/09/2015, 11:12

... 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

... know that the capacitance (stated in terms of the amount of charge (Q) stored at a given voltage drop (across the capacitor)) of a capacitor is given by (1) (Note that: the SI unit of capacitance ... is the farad; farad = coulomb per volt; typical capacitances are measured in microfarads or picofarads) 5.2.1 The Virtual Capacitor To implement the law of Coulomb,...

Ngày tải lên: 21/06/2014, 11:20

... can be completely avoided and the lifetime of the BSN can be prolonged Another energy-efficient TDMA-based MAC protocol for wireless BSNs is the BodyMAC [13], which uses flexible and efficient bandwidth ... conditions, an energy-efficiency comparison between DQMAC performance and that of the standard facto 802.15.4 MAC and the BSN -MAC is portrayed BSN -MAC has been selected...

Ngày tải lên: 21/06/2014, 11:20

... channel measurements which can be used for channel characterization and capacity analysis [2] Apart from a general overview of OpenAirInterface, in this paper we present OpenAirMesh a specification ... node Variable bit-rate traffic channel with negotiated QoS parameters used by the mesh network to transport data traffic corresponding to a particular flow Table 4: Transport and physi...

Ngày tải lên: 21/06/2014, 18:20

... this article as: Bockting et al.: Disrupting the rhythm of depression: design and protocol of a randomized controlled trial on preventing relapse using brief cognitive therapy with or without antidepressants ... department of Psychology at the University of Groningen in collaboration with psychologists of the Rotterdam University and...

Ngày tải lên: 11/08/2014, 16:22

... attempts to develop a new network management and data collection framework for heterogeneous wireless sensor networks called as Heterogeneous Wireless Sensor Networks Management System (H-WSNMS), which ... WSNs Wireless Sensor Networks XML Extensible Mark-up Language xi ABSTRACT Yu, Qun M.S., Purdue University, August, 2010 Design and Implementation...

Ngày tải lên: 24/08/2014, 10:50