- Trang chủ >
- Khoa Học Tự Nhiên >
- Vật lý >
gas sensing characteristics and porosity control of nanostructured films
gas sensing characteristics and porosity control of nanostructured films
... thus of considerable interest and importance to examine the detailed gas sensing properties of nanostructured films base d on TiO2nanotubes.For semiconductor gas sensors, the porosity of sensing ... utility factor of the sensing film or a decrease inthe accessibility of the target gas. Thus, the effect of the porosity of sensing films on the sensor response is more pronounced for targetgases with ... promotion of the gas sensitivity through the porosity control of gas sensing films.2. ExperimentalTiO2nanotubes were prepared by a hydrothermal method asreported in the literature [18].0.5gofaTiO2commercial...
- 8
- 1,252
- 0
glucose - mediated hydrothermal synthesis and gas sensing characteristics of wo3 hollow microspheres
... volume.3.4. Gas sensing characteristics As stated above, the gas responses of the R5 and R0.5 powderswere negligible. Thus, the gas responses of the R30-RH and R30240 C Y. Lee et al. / Sensors and ... theeffective gas diffusion (Fig. 5). The gas response was improved fur-Fig. 7. Dynamic sensing transients of (a) R30-RH and (b) R30 sensors and (c) gas responses (Rg/Ra) of R30-RH and R30 sensors ... reported higher gas responses.The higher gas response of the R30 microspheres than those of the R5 and R05 powders was attributed to the higher surfacearea for gas sensing reaction and the large...
- 7
- 793
- 0
Theoretical modeling of combustion characteristics and performance parameters of biodiesel in DI diesel engine with variable compression ratio
... S.K. Bhatti, Effect of soybean oil biofuel blending on the performance and emissions of diesel engine using diesel-rk software, International journal of engineering science and technology, 4539-4555, ... Canakci, ‘Determination of performance and combustion characteristics of a dieselengine fueled with canola and waste palm oil methyl esters’, Int. journal of Energy Conversion and Management, volume.52, ... b and c are the coefficients of polynomial equation and R gas constant (kJ/kg.K). 3.3 Pressure and temperature during compression The initial pressure and temperature at the beginning of...
- 12
- 665
- 2
SIMULATION AND SPEED CONTROL OF INDUCTION MOTOR DRIVES
... electrical drives, use of various sensors and control algorithms is done to control the speed of the motor using suitable speed control methods. The basic block diagram of an electrical drive ... MATLAB Simulink and the effects of various parameters such as rotor and stator resistances and inductances were analysed. Also different control algorithms such as P, PI and PID control were studied ... simulating them in MATLAB Simulink and were compared. SOURCE POWER MODULATOR MOTOR LOAD CONTROL UNIT SENSING UNIT INPUT COMMAND Simulation and Speed Control of Induction Motor Drives 2012...
- 76
- 682
- 0
Tài liệu Social and Economic Control of Alcohol The 21st Amendment in the 21st Century docx
... of lawlessness and 2) the focusing of all the forces of society on the development of self -control and temperance in the use of alcoholic beverages (Fosdick and Scott, p. ix).With repeal of ... when and where (e.g., legal drink-ing ages, hours of operation, type of establishment, presence or absence of food, types and amounts of beverages). e stated intent of controlling purchase and ... regulation of access and distribution and taxes to raise revenue, not necessarily on controlling drinking.Beer, Wine, and Spiritse model alcohol control laws that grew out of the recommendations of...
- 264
- 748
- 1
Báo cáo " Study on the characteristics and catalytic properties of Pt/SBA-15 in the selective oxidation of D-Glucose " potx
... VNU Journal of Science, Natural Sciences and Technology 26 (2010) 183-190 183 Study on the characteristics and catalytic properties of Pt/SBA-15 in the selective oxidation of D-Glucose Tran ... activity and selectivity in the oxidation of glucose. When increasing the content of Pt loading, most Pt nanoparticles aggregated outside the channels of SBA-15 with size of 10-15nm and catalytic ... prepared and tested in D-glucose oxidation process. The properties of these materials were characterized by XRD, TEM, EDX, and N2 adsorption-desorption methods and the products of the oxidation...
- 8
- 677
- 0
Plant physiology - Chapter 17 Phytochrome and Light Control of Plant Development pptx
... leaflet clo-sure during nyctinasty, and that fluxes of K+ and Cl–into and out of dorsal and ventral motor cells mediate theresponse. However, the rapidity of leaf closure in the dark(lag time ... beeninferred from the effects of red and far-red light on the sur-face potential of roots and oat (Avena) coleoptiles, wherethe lag between the production of Pfr and the onset of mea-surable potential ... regulator of the LHY and CCA1 genes,the repression of TOC1 expression causes a progressivereduction in the levels of LHY and CCA1, which reachtheir minimum levels at the end of the day. As LHY and CCA1...
- 29
- 1,030
- 3
sol–gel synthesis and morphological control of nanocrystalline tio2 via urea treatment
... ratio).The straight and parallel stripes (referred to Figs. 4b and 4c)onthe surface of the rods and hollow tubes may result from theaggregates of the smaller and finer nanorods of ∼10 nm in di-ameter ... size, and crystalline phasecan be controlled by changing the hydrothermal parameterssuch as reaction temperature and pressure, pH values, sol com-position, type of the solvent and additive, and ... TiO2rods and hollow tubes, con-sisting of aggregates of nanorods of ∼10 nm in diameter. Thenanocrystalline TiO2thus prepared appears to have an engravedsurface morphology and consists mainly of...
- 8
- 588
- 0
Từ khóa: online estimation and adaptive control of bioreactorsestimation and adaptive control of bioreactorsbastin dochain online estimation and adaptive control of bioreactorsmodeling and position control of mobile robotcharacteristics and associated weather of hurricane sandy1 mechanism and 2 control of saliva secretion in acinar cellsBáo cáo quy trình mua hàng CT CP Công Nghệ NPVNghiên cứu sự hình thành lớp bảo vệ và khả năng chống ăn mòn của thép bền thời tiết trong điều kiện khí hậu nhiệt đới việt namMột số giải pháp nâng cao chất lượng streaming thích ứng video trên nền giao thức HTTPNghiên cứu vật liệu biến hóa (metamaterials) hấp thụ sóng điện tử ở vùng tần số THzGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitPhối hợp giữa phòng văn hóa và thông tin với phòng giáo dục và đào tạo trong việc tuyên truyền, giáo dục, vận động xây dựng nông thôn mới huyện thanh thủy, tỉnh phú thọNghiên cứu tổng hợp các oxit hỗn hợp kích thƣớc nanomet ce 0 75 zr0 25o2 , ce 0 5 zr0 5o2 và khảo sát hoạt tính quang xúc tác của chúngNghiên cứu khả năng đo năng lượng điện bằng hệ thu thập dữ liệu 16 kênh DEWE 5000Định tội danh từ thực tiễn huyện Cần Giuộc, tỉnh Long An (Luận văn thạc sĩ)Thơ nôm tứ tuyệt trào phúng hồ xuân hươngThiết kế và chế tạo mô hình biến tần (inverter) cho máy điều hòa không khíTổ chức và hoạt động của Phòng Tư pháp từ thực tiễn tỉnh Phú Thọ (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 15: Tiêu hóa ở động vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtChiến lược marketing tại ngân hàng Agribank chi nhánh Sài Gòn từ 2013-2015Đổi mới quản lý tài chính trong hoạt động khoa học xã hội trường hợp viện hàn lâm khoa học xã hội việt namMÔN TRUYỀN THÔNG MARKETING TÍCH HỢP