Development of semiconductor metal oxide gas sensors modifie

Development of semiconductor metal oxide gas sensors modified by mesoporous silica materials

... DEVELOPMENT OF SEMICONDUCTOR METAL OXIDE GAS SENSORS MODIFIED BY MESOPOROUS SILICA MATERIALS YANG JUN (PhD, NUS) A THESIS SUBMITTED FOR THE DEGREE OF PH.D OF ENGINEERING DEPARMENT OF CHEMCIAL ... application of mesoporous materials in improving the sensitivity of semiconductor metal oxide gas sensors as well as the investigation of the mechani...

Ngày tải lên : 12/09/2015, 08:20

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conduction model of metal oxide gas sensors

... the bulk of the grain becomes comparable with the number of surface collisions; the latter may be inﬂuenced by Conduction Model of Metal Oxide Gas Sensors 147 Fig Schematic representation of compact ... applicability of the formula to cases where, even with exposure to reducing gases, the band bending remains Conduction Model of Metal Oxide Gas Sensors 157...

Ngày tải lên : 19/03/2014, 16:47

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recent advances in wide bandgap semiconductor biological and gas sensors

... detection in gases and liquids, ﬂue gas and ﬁre detection, liquid quality sensors, biosensors and medical sensors Some of the major applications in the home include indoor air quality and natural gas ... available hand-held wireless transmitter to realize a portable, fast and high sensitive CO2 sensor 2.4 CH4 sensing Of particular interest in developing wide bandgap...

Ngày tải lên : 20/03/2014, 13:06

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development of novel nitric oxide releasing materials and polymeric coatings for blood contacting biomedical applications

Ngày tải lên : 14/11/2014, 08:07

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Development of transition metal catalyzed c s and c c cross coupling reactions

... of cross- coupling reactions of aryl halides in the processes of C C, C N and C S bond forming reactions In this dissertation, we have developed new cross- coupling protocols for the synthesis of ... Suzuki and Heck couplings) reactions under mild conditions Chapter 2: Decarboxylative C S Cross- Coupling CHAPTER Synthesis of Vinyl Sulfides by Copper -Catal...

Ngày tải lên : 10/09/2015, 15:50

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Engineering of binary metal oxide nanostructures for highly efficient and stable excitonic solar cells

... bands of SnO2 flowers and fibers 137 6.1.7 Proposed growth model of nanoflowers 139 6.1.8 Fabrication of solar cells and evaluation of photovoltaic properties 142 6.2 Estimation of ... Outlook and Recommendations 162 Bibliography 164 vii SUMMARY Excitonic solar cells (ESCs) such as Dye Sensitized Solar Cells (DSCs) and Organic Solar Cells...

Ngày tải lên : 12/09/2015, 10:22

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Synthesis, characterization and application of nanostructured metal oxide

... 180oC for days and then cooled naturally to room temperature Among these nanostructured metal oxides, transition metal oxide nanostructure offers a wider spectrum of potential applications, including ... bottom of the conduction band; EF the Fermi level; XS the work function and XSO the electron affinity Figure 4-2: Energy band diagram of metal and semiconductor contact...

Ngày tải lên : 16/10/2015, 15:37

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Báo cáo y học: "The association of meat intake and the risk of type 2 diabetes may be modified by body weight"

... consumption and risk of diabetes or of interactions between poultry consumption and BMI and the risk of type DM Red meat consumption was associated with a modest increase in the risk of type DM in the ... and type DM may also reflect other unidentified factors It may be possible that consumption of red meat and processed meat may not incre...

Ngày tải lên : 31/10/2012, 16:49

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Extraction of heavy metal availability in contaminated soil by a short sequential extraction procedure

Ngày tải lên : 16/03/2014, 00:07

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sensitivity properties of a novel no2 gas sensor based on mesoporous wo3 thin film

... Selected-area electron diffraction patterns recorded on mesoporous WO3 that is characteristic of diffuse electron diffraction rings demonstrate that the walls of our material are made up of nanocrystallite ... lead to excellent sensing properties upon exposure to low concentration of NO2 in air at low temperatures and enabled the selective detection of NO2 and H2 gases...

Ngày tải lên : 20/03/2014, 13:07

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báo cáo hóa học:" Development of targeted therapy for ovarian cancer mediated by a plasmid expressing diphtheria toxin under the control of H19 regulatory sequences" doc

... evaluate the therapeutic potential of expression vectors carrying the "A" fragment of the diphtheria toxin (DT -A) gene under the control of the H19 regulatory sequences in an ovarian carcinoma ... expression profiling allows an individualized DNA-base approach to cancer therapy The therapeutic potential of the DTA -H19 vector was tested in a rat ani...

Ngày tải lên : 18/06/2014, 15:20

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Báo cáo hóa học: " Development of targeted therapy for bladder cancer mediated by a double promoter plasmid expressing diphtheria toxin under the control of H19 and IGF2-P4 regulatory sequences" potx

... an approach for targeted therapy of bladder carcinoma by driving the DTA expression under the control of IGF2-P4 and H19 regulatory sequences To evaluate the possible use of IGF2-P4 and H19 regulatory ... therapy is an attractive approach Based on early studies of our group and others, the transcriptional regulatory sequences of the H19...

Ngày tải lên : 18/06/2014, 16:20

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Báo cáo khoa học: "Post-thaw development of in vitro produced buffalo embryos cryopreserved by cytoskeletal stabilization and vitrification" pps

... embryos cryopreserved by cytoskeletal stabilization and vitrification Post-thaw in vitro developmental competence of the embryos vitrified after cytoskeletal stabilization in the presence of cyto-b ... preservation IVP buffalo embryos cryopreserved by cytoskeletal- stabilization and vitrification achieved a maximum hatching rate of 30% and 55% on p...

Ngày tải lên : 07/08/2014, 23:22

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Báo cáo y học: "Gene expression profiling in circulating endothelial cells from systemic sclerosis patients shows an altered control of apoptosis and angiogenesis that is modified by iloprost infusion" potx

... cells from systemic sclerosis patients shows an altered control of apoptosis and angiogenesis that is modified by iloprost infusion Arthritis Research & Therapy 2010 12:R131 Submit your next manuscript ... statistical analysis MD and PA performed the gene array analysis RA helped in the flow-cytometric analysis of endothelial cells LC and PA wer...

Ngày tải lên : 12/08/2014, 14:22

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THE POSSIBILITY OF ELIMINATING METAL IONS FROM INDUSTRIAL SEWAGE BY USING ALUMINUM HYDROXIDE

... Technology Name of thesis THE POSSIBILITY OF ELIMINATING METAL IONS FROM INDUSTRIAL SEWAGE BY USING ALUMINUM HYDROXIDE Pages Instructor 48+16 Jana Holm Supervisor Jana Holm Aluminum hydroxide is ... after the decimal The second factor that could impact the results are the particle size of the aluminum hydroxide The particle size of the al...

Ngày tải lên : 10/11/2015, 09:38

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