3 design and fabrication of scaffolds

... deployment of these types of communications in very high frequency band has become inevitable and essential. Especially boom in broadband communications to promote the exploitation of parallel ... -Study about delta modulation. -Design and fabricate successfully VCO circuit in VHF band and delta modulate circuit. 4 TABLE OF CONTENTS 5 List of Figures 6 List of Table 7 ABBREVATIONS BJT Bipolar ... objectives and structure. In this thesis,I will clarify the roles and the need of a information digital transmitter in VHF band. Study the function of each block in a transmitter system and especially...

Ngày tải lên: 27/05/2014, 20:57

... resistance of the conventional power MOSFET and overcome the existing fabrication limitations on the conventional superjunction devices. viii Appendix B PROFILE + PROFILE + PROFILE + PROFILE + PROFILE ... DESIGN AND FABRICATION OF SUPERJUNCTION POWER MOSFET DEVICES CHEN YU NATIONAL UNIVERSITY OF SINGAPORE 2008 DESIGN AND FABRICATION OF SUPERJUNCTION POWER MOSFET DEVICES ... knowledge and all kinds of support during my graduate study at NUS. I believe that I will be immeasurably benefited from their wisdom and professional advice throughout my career and my life....

Ngày tải lên: 14/09/2015, 14:12

... of microfluidic devices and focus of research in this thesis 2) Advantages of microfluidic devices and aim to improve multiplexing capability 1.1.1 Applications of microfluidic devices Microfluidic ... equipments required and the ease of integration with fabrication of the entire microfluidic device There are quite a number of microfabrication... 2002) b) Fabrication of filter pillars ... throughput and integration with other microfluidic devices. The main focus of the research in this thesis is on the design and fabrication of microfluidic devices for performing immunoassays and DNA...

Ngày tải lên: 30/09/2015, 06:04

... alternative candidate of tuning materials ………………………13 1.2.2.5 Conductor layer and conducting loss……………….14 1.3 Scope and outline of this study……………………………………….15 References Chapter2 Fabrication of thin ... simulation results of the tunable bandpass filter Curve of blue color represents S11 parameter and curve of pink color represents S 21 parameter………………………………………… 54 Figure3.14 Fabrication process ... voltage……………………… 57 ix and inductance of the varactor and measurement circuit Because of the independence of capacitance on frequency, no dielectric relaxation occurs The slowly increase of loss tangent...

Ngày tải lên: 04/10/2015, 10:26

... MINISTRY OF EDUCATION AND TRAINING VIETNAM ACADEMY OF SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY OF SCIENCE AND TECHNOLOGY …… ….***………… Nguyen Quang Minh Study on Design and Fabrication of Blackbody ... University of Science and Technology, Vietnam Academy of Science and Technology Supervisors: Prof Dr Nguyen Dai Hung Dr Ta Van Tuan LIST OF PUBLICATIONS Nguyen Quang Minh, Nguyen Van Thanh, and Nguyen ... Graduate University of Science and Technology, Vietnam Academy of Science and Technology on .hour , date .month year Nguyen Quang Minh and Ta Van Tuan, "Evaluation of the Emissivity of an Isothermal...

Ngày tải lên: 09/01/2020, 15:05

... MINISTRY OF EDUCATION AND TRAINING VIETNAM ACADEMY OF SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY OF SCIENCE AND TECHNOLOGY …… ….***………… Nguyen Quang Minh Study on Design and Fabrication of Blackbody ... University of Science and Technology, Vietnam Academy of Science and Technology Supervisors: Prof Dr Nguyen Dai Hung Dr Ta Van Tuan LIST OF PUBLICATIONS Nguyen Quang Minh, Nguyen Van Thanh, and Nguyen ... Graduate University of Science and Technology, Vietnam Academy of Science and Technology on .hour , date .month year Nguyen Quang Minh and Ta Van Tuan, "Evaluation of the Emissivity of an Isothermal...

Ngày tải lên: 15/01/2020, 08:43

... All components of this 28 P V Thanh, …, V V Hoang, “Design and fabrication … temperature and pH of water.” Research system is shown in Figure The program of this system was written and compiled ... Research DESIGN AND FABRICATION OF AN ONLINE LOW-COST MONITORING AND WARNING SYSTEM FOR TEMPERATURE AND pH OF WATER Pham Van Thanh*, Nguyen Tien Dat, Dang Xuan ... seconds, the system measures and selects the temperature of water which would be used to evaluate at end of program After 300 s, the system measured and selected the pH of water And then, the system...

Ngày tải lên: 10/02/2020, 00:29

... MINISTRY OF EDUCATION AND TRAINING HANOI UNIVERSITY OF SCIENCE AND TECHONOLOGY - NGUYEN NGOC SON DESIGN AND FABRICATION OF DIPOLE ANTENNA AT OPTICAL FREQUENCY MASTER THESIS OF SCIENCE ... MINISTRY OF EDUCATION AND TRAINING HANOI UNIVERSITY OF SCIENCE AND TECHONOLOGY - NGUYEN NGOC SON DESIGN AND FABRICATION OF DIPOLE ANTENNA AT OPTICAL FREQUENCY Science and Engineering ... Sketch of a standard confocal setup 29 Figure 2.5 Sketch of a standard apertureless SNOM 30 Figure 2.6 Sketch of a standard aperture SNOM 31 Figure 3.1 The 3D view of the...

Ngày tải lên: 22/02/2021, 09:17

... Table of contents Table of contents ii Summary v List of abbreviations vii List of tables ix List of figures ix Chapter Overview of research ... mM PDCA and 10 μM HDZ showed blood vessel infiltration comparable to VEGF delivery, and at this point, served as a proofof-concept that local delivery of PHi can aid angiogenesis vi List of abbreviations ... prophylactic setting of small skin wounds [61] 2.3 Understanding the last mile of the fibrotic pathway Irrespective of upstream events that trigger and entertain fibrosis, the final product of cellular...

Ngày tải lên: 10/09/2015, 15:52

... thanks to the staff of Highlander’s Coffee cafe for the wonderful coffee and great environment for us to brainstorm our ideas and work Everyone in NUS Nanobiomechanics Laboratory and NUS Regenerative ... period of days Immunofluorescent staining of hMSCs showed an upregulation of synaptophysin, indicating the establishment of synapse and electrical communication between cells Upregulation of connexin ... Quantum-dot labeling of collagen in PEC fibers and detection of collagen in (A) Sub-micron fibrils, (B) and (C) main fiber and (D) fiber bead region 70  Figure 4.11: Swelling studies of PEC and Polypyrrole...

Ngày tải lên: 11/09/2015, 09:10

... casting and solvent-free method of hot roll-milling • The exploration of the use of lasers to modify the surface of PCL films and understanding the mechanisms behind it, and the effect of the ... and elongation (λ) of all types of PCL films (Page 52) Table 4.1 Thermal and optical properties of PCL (Page 67) xi List of Figures Fig 2.1 Comparison of moduli of elasticity of biomaterials [15] ... the degree of Doctor of Philosophy in the Department of Mechanical Engineering at the National University of Singapore under the supervision of Professor Teoh Swee Hin and Associate Professor Hong...

Ngày tải lên: 14/09/2015, 08:36

... usually show only γ-γ dimers and loss of α and γ bands as well as a-a multimers (Fig 2) Determine the density of the FMB by layering an aliquot of it onto a sucrose solution of known density After ... between HA and the coupling reagent is chosen as a function of the degree of substitution of the ester For a total esterification (>90% of carboxyl groups esterified), use an excess of 25–30% of benzyl ... micrograph of a porous chitosan scaffold Hydrated scaffolds are soft, spongy, and highly extensible The tensile elastic modulus of hydrated samples is in the range of 100–500 kPa (16), and equilibrium...

Ngày tải lên: 10/04/2014, 11:11

... receptor x List of Tables Table 1.1 Summary of the advantages and limitations of the most commonly used vascularization strategies Table 2.1 A selected list of prolyl hydroxylase inhibitors and their ... tissue availability and donor site morbidity, while allogeneic and xenogeneic transplants have problems of immunogenicity and risks of disease transmission [4, 5] In addition, the demand for allogeneic ... stabilized and is thus not secreted, resulting in decreased collagen deposition Based on the understanding of collagen P4H’s structure, stereochemistry, and mechanism of action, a variety of small...

Ngày tải lên: 09/09/2015, 11:11

... PM, Bieniasz P, Hahn BH, Hatziioannou T, Kirchhoff F: Tetherin-driven adaptation of Vpu and Nef function and the evolution of pandemic and nonpandemic HIV-1 strains Cell Host Microbe 2009, 6:409-421 ... Page of 13 Figure Mutation of S52A impairs Vpu-mediated degradation of CD4 and tetherin (A) Western blot analysis of Vpu expression in lysates of transfected 293T cells (B) FACS analysis of CD4 ... http://www.retrovirology.com/content/7/1/1 Page of 13 Figure Modulation of tetherin and CD4 in primary T-cells and macrophages by Vpu (A) FACS analysis of CD4 and tetherin modulation in infected PBL...

Ngày tải lên: 12/08/2014, 23:22

... my two supervisors Prof Teoh Swee-Hin and A/Prof Jerry Chan I would like to thank them for their constant sharing of knowledge and ideas, their patience and understanding, and the many hours they ... providing the bulk of the tensile yield strength and plays an important in the storage of various ions The mineral salts of bone comprises of largely of calcium and phosphorus (Downey and Siegel 2006) ... first days of culture Figure 7-3 (A, C) Experimental work-flow of cellular-treatment before and during Matrigel assay and (B, D) quantification of quantification of branch points of vessel networks...

Ngày tải lên: 09/09/2015, 10:16

... Formation of CLS not follow scaffold fiber orientation LIST OF TABLES Table Summary of the in vitro and in vivo angiogenic and anti-fibrotic effects of PDCA, CPX, HDZ and VEGF xi LIST OF ABBREVIATIONS ... of CPX and VEGF treated admixed co-culture of fibroblasts and HUVEC in PLLA scaffolds 20x magnification Figure 38 Confocal microscopy (z-stack) of µM CPX treated admixed co-cultures in PLLA scaffolds ... cytotoxicity of HDZ, CPX and PDCA in monocultures or mixed cultures of IMR90 fibroblasts and HUVECs Figure 32 PHi inhibition of fibroblast collagen production in vitro SDS-PAGE and desitometric...

Ngày tải lên: 12/09/2015, 08:18

... layer of the periosteum is a 3D layer comprising of highly fibrous tissues and vascular network, hence mimicry of this layer would require 3D integration of cells and scaffold Modifications of the ... synthetic polymers is often directed at the creation of specialized and more biologically relevant materials Composite scaffolds of natural-synthetic materials offer desired mechanical and manufacturing ... pre-determined period of time resulted in tough yet flexible nanofiber sheets (Fig 4B, C) that could be handled for downstream applications Morphology and size distribution of PCL and PCL/Col nanofibers were...

Ngày tải lên: 14/09/2015, 08:24

... degree of Doctor of Philosophy in the Graduate Program in Bioengineering at the National University of Singapore under the supervision of Professor Lee Chuen Neng, Professor Teoh Swee Hin and Dr ... years and has saved many lives, while having improved the quality of lives of thousands of other patients Paradoxically, the advent of reliable transplantation techniques created the issue of organ ... formation of a confluent EC layer in vivo and evidence of tissue ingrowth and vitalisation of the construct (Greisler 1985; Greisler 1987) However, the extent of tissue formation was insufficient, and...

Ngày tải lên: 14/09/2015, 08:49

... maintenance and substitution of damaged tissues and organs using principles of biology and engineering (Langer and Vacanti, 1993) BTE consists of an interplay of scaffold technology, growth factors and ... B: PCL-TCP scaffolds loaded with 100ng/ml BMP-2 Group C: PCL-TCP scaffolds loaded with 300ng/ml of heparin Group D: PCL-TCP scaffolds loaded with 300ng/ml of heparin and 100ng/ml of BMP2) Figure ... Amount of BMP-2 release at various time points (Group B: PCLTCP scaffolds loaded with 100ng/ml BMP-2 Group D: PCL-TCP scaffolds loaded with 300ng/ml of heparin and 100ng/ml of BMP2) Group A and...

Ngày tải lên: 09/10/2015, 11:18

... degree of Master of Engineering in the Department of Mechanical Engineering at the National University of Singapore under the supervision of Professor Teoh Swee Hin and Dr Alvin Yeo No part of this ... Table 4.1 Mw, Mn, and PDI of native, NaOH-treated, and lipase-treated PCL-TCP Scaffolds in vitro 66 Table 4.2 Mw, Mn, and PDI of native, NaOH-treated, and lipase-treated PCL-TCP Scaffolds in vivo ... diagram of part and part study Figure 2.1 Composition of bone Figure 2.2 The assembly of collagen fibrils and fibers and bone mineral crystals Figure 2.3 Microscopic structure of cortical and cancellous...

Ngày tải lên: 09/10/2015, 11:18