... exp − Εg kT (2.19) where Nc and Nv are the density of state of conduction band and valence band, respectively, and Eg is the energy band gap of materials When electrons and holes are tightly bound ... QS and ND are surface charge and the number of ionized donor states per unit volume, and K, εO, and ∆φS denote the static dielectric constant of the oxide, the permittivity of the vacuum, and ... national, state and local levels These often require in-situ continuous monitoring of air quality and the rates of emissions of specific chemical species In particular, the efficiency of internal...
Ngày tải lên: 28/05/2014, 14:44
... studies the growth of ZnO nanorods and films in aqueous solution using zinc acetate and ammonium hydroxide in detail Regardless of the type of substrate used, the solubility of zinc (SZn), interface ... as a covalent and ionic compound The bottom of the conduction band is formed essentially from the 4s levels of Zn2+ and the top of the valence band from the 2p levels of O2- The band gap between ... leading to the breakage of the O bond and release of the H ion into the O-H solution Hydrolysis of the hydrated zinc ion is a sequential process and gives a range of zinc hydroxide complexes, Zn(H2O)62+...
Ngày tải lên: 14/09/2015, 08:26
SYNTHESIS AND STUDY OF ZINC OXIDE NANOSTRUCTURES AND FILMS
... thin layer of zinc (Zn) used in Chapters Three and Four, and zinc oxide (ZnO) used in Chapter Five Physical vapor deposition (PVD) is a general term used to describe any of a variety of methods ... films, fibers, and monoliths.28 Typical sol–gel process involves hydrolysis and condensation of metal alkoxides and metal salts such as chlorides, nitrates and acetates In metal alkoxides M(OR)x, ... Myoung, and M M Sung, ACS Appl Mater and Interfaces, 1, 2843 (2009) 65 W Kern and K K Schuegraf, in Handbook of Thin Film Deposition Processes and Techniques (2)- Principles, Methods, Equipment and...
Ngày tải lên: 02/10/2015, 17:14
Tài liệu A Review of the Uses of Poultry Eggshells and Shell Membranes doc
... 49-69 weeks of age had favorable effects on the main production indices and quality of egg shells This was attributed to the role and contribution of the micro elements (manganese, zinc) and macroelements ... Seyer and A.H Kang, 1978 Chemotactic attraction of human fibroblasts to type I, II and III collagen and collagen derived peptides Proc Natl Acad Sci USA., 75: 871-875 Romanoff, A.L and A.J Romanoff, ... emulsifying and jelling agent Nutritionally, both collagen and gelatin are of low protein quality; although some of the collagen based dietary supplements improve quality of skin and finger nails...
Ngày tải lên: 21/02/2014, 01:20
Benefits and Uses of Urban Forests and Trees doc
... potential of woodland, parks and trees and to integrate people with specific needs and demands, deriving from their social status age, gender and ethnic background (German-Chiari and Seeland 2004) ... urban morphology units and cover of trees ands shrubs for the example of Munich, Germany (adapted from Pauleit and Duhme 2000) Chapter · Benefits and Uses of Urban Forests and Trees 95 Part I 96 ... woodland on post-industrial land These areas offer significant opportunities for the creation of urban woodland (Perry and Handley 2000), providing valuable habitats and creating a new landscape...
Ngày tải lên: 07/03/2014, 12:20
Textbook of Sports Medicine Basic Science and Clinical Aspects of Sports Injury and Physical Activity pot
... Rehabilitation and Research Centre, University of Oulu, FIN-, Finland Axel Urhausen Institute of Sports and Preventitive Medicine, Department of Clinical Medicine, University of Saarland, D-, Saarbruecken, ... of Jyvọskylọ, FIN-, Finland Timo Sọppọlọ National Public Health Institute, Helsinki, FIN-, Finland Timo Takala Department of Biology of Physical Activity, University of Jyvọskylọ, FIN-, Finland ... of Anatomy, University of Kuopio, FIN-, Finland Jan Henriksson Department of Physiology and Pharmacology, Karolinska Institute, University of Stockholm, SE, Sweden Nils Hjeltness Department of...
Ngày tải lên: 15/03/2014, 09:20
Báo cáo khoa học: The effect of zinc oxide nanoparticles on the structure of the periplasmic domain of the Vibrio cholerae ToxR protein pot
... wavelength (kmax) of free and NP-conjugated ToxRp at pH 8.0 and 25 °C with increasing concentration of GdnHCl Fig Shift in wavelength (kmax) of free and NP-adsorbed ToxRp at pH 8.0 and 25 °C with ... the midpoint of the transition Fig Acrylamide quenching of tryptophan fluorescence of free and NP-treated ToxRp in the presence and absence of chaotropic agents such as M GdnHCl and M urea Fig ... far-UV CD spectra of free ToxRp as well as of ToxRp–ZnO conjugates A large negative ellipticity for free ToxRp, of between 210 and 230 nm, is indicative of the presence of a-helix, and the secondary...
Ngày tải lên: 23/03/2014, 03:20
Báo cáo "Investigation of zinc oxide thin film by spectroscopic ellipsometry " ppt
... between the measured and calculated values of the ellipsometric parameters (ψ and ∆) and accurate information has been derived regarding the thickness and optical constants of the different layers ... conditions (e.g the angle of polarization mirrors and modulators) and parameters of film (∆, Ψ) The measurement configuration is chosen for the purpose of simplifying the calculation of trigonometry functions ... the zinc oxide film which was found to be Eg ≈ 3.33 eV a b Fig Polarized spectra of ZnO sample, with Is = sin2Ψsin∆ (a) and Ic = sin2Ψcos∆ (b) Fig Transmittance spectra of glass substrate and...
Ngày tải lên: 28/03/2014, 13:20
NUTRITIONAL ASPECTS and CLINICAL MANAGEMENT of CHRONIC DISORDERS and DISEASES doc
... visiting professor at the Universities of Cape Town, Tel Aviv, and Lyon, and at the Pasteur and Weizmann Institutes He is a fellow of the American Association for the Advancement of Science and of the ... He is a member of numerous professional societies and has been on the editorial boards of The American Journal of Physiology, The Journal of Nutrition, and The American Journal of Clinical Nutrition ... Health and Disease, John J.B Anderson and Sanford C Garner Edited by Ira Wolinsky Published Titles Practical Handbook of Nutrition in Clinical Practice, Donald F Kirby and Stanley J Dudrick Handbook...
Ngày tải lên: 28/03/2014, 22:20
The Clinical Practice of Complementary, Alternative, and Western Medicine pot
... systems, mind and body, and body and soul The human whole is more than the sum of his or her parts and cannot be meaningfully dissected to understand the whole One is reminded of the story of the blind ... Much the same sort of energy transfer is seen in the voodoo cult of Haiti and in the laying on of hands and the effect of prayer, albeit negative energy in the first instance and positive in the ... acupuncture and homeopathy exhibit elements of supersensible energetic transformation of the body–mind Professor William Tiller, Professor Emeritus of the Department of Material Sciences and Engineering...
Ngày tải lên: 29/03/2014, 07:21
controlled growth of zinc oxide microrods by hydrothermal process
... concentration of Zn(NO3)2 and hexamine) was changed every h during the growth process; (a) mM of Zn2+, (b) mM of Zn2+ and (c) 10 mM of Zn2+ Table Summary of width, length and aspect ratio of zinc oxide ... were weighed and heated at 95 °C and then soaked in strong sulfuric acid for h to allow metals and metal oxides to be released from the substrates Zinc oxide, copper and copper (I) oxide are readily ... after 10 h of growth The precursor solution (equimolar concentration of Zn(NO3)2 and hexamine) was changed every h during the growth process; (a) mM of Zn2+, (b) mM of Zn2+ and (c) 10 mM of Zn2+;...
Ngày tải lên: 06/05/2014, 13:23
Ultraviolet amplified spontaneous emission from self organized network of zinc oxide nanofibers
... to the band-edge emission of ZnO and the green one is related to the defects in ZnO such as oxygen vacancies Consistent with the results of XRD and HRTEM, the strong UV and weak green bands imply ... aligned array of ZnO is self-organized in six symmetrical directions and the diameter of the fibers is about several hundreds of nanometers, and the ASE present a FWHM of nm with a threshold of about ... spacing of 0.26 nm match the interspacing of (0002) planes of the wurtzite ZnO, while the lattice fringes of the branch nanofiber with the d spacing of 0.28 nm coincide with the spacing of ͑0110͒...
Ngày tải lên: 18/05/2014, 11:29
báo cáo hóa học:" Health-related quality of life in a clinical sample of obese children and adolescents" pptx
... quality of life in a clinical sample of obese children and adolescents Health and Quality of Life Outcomes 2010 8:134 Submit your next manuscript to BioMed Central and take full advantage of: • ... weight and HRQoL We examined pubertal status and its impact on obesity and HRQoL The aims of this study were therefore to: 1) to measure HRQoL in a mixed-ethnic clinical sample of obese children and ... status and ethnicity were used to compare the PedsQL scores of the clinic and the control samples Finally, analysis of covariance was used to investigate the interaction effect of pubertal status and...
Ngày tải lên: 20/06/2014, 15:20
Báo cáo hóa học: " NH4+ directed assembly of zinc oxide micro-tubes from nanoflakes" docx
... determine the band gap of ZnO micro-tubes As a direct band gap semiconductor, n equals 0.5 for ZnO Extrapolation of this line to the photon energy axis yields the semiconductor band gap of these ZnO ... by self-assembly of nanoflakes of ZnO nanoparticles, creating a highly porous structure The formation mechanism of ZnO micro-tube structure was investigated, and the key role of NH4+ ion in the ... Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, People’s Republic of China 2Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign,...
Ngày tải lên: 21/06/2014, 01:20
USES OF ORGANIC MATTER AND USES OF INORGANIC MATTER potx
... alkaline substances Thus nitrate of potash (saltpetre), is composed of nitric acid and potash: nitrate of soda (cubical nitre), of nitric acid and soda USES OF INORGANIC MATTER What effect has ... condition of chlorine in the soil? Do peroxide and protoxide of iron affect plants in the same way? How would you treat a soil containing protoxide of iron? On what does the usefulness of all these ... chlorine, oxide of iron, and oxide of manganese, deserve a careful examination Silica exists in the soil usually in the form of sand, in which it is, as is well known, perfectly insoluble; and, before...
Ngày tải lên: 29/06/2014, 15:20
Báo cáo khoa học: " Molecular fingerprinting of clinical isolates of Mycobacterium bovis and Mycobacterium tuberculosis from India by restriction fragment length polymorphism (RFLP)" pdf
... characterize clinical isolates of M bovis and M tuberculosis isolated from animals and human in India by using IS 6110 and IS 1081 sequence polymorphism based RFLP in order to disclose chain of transmission ... of transmission between human and animals in a restricted geographical location Materials and Methods Mycobacterial strains Details of clinical isolates of M bovis and M tuberculosis used in this ... IS6110 and IS1081 probes The results of RFLP fingerprinting of mycobacterial strains with these probes are shown in Table and Out of 28 field M tuberculosis strains, 27 showed copies of IS6110...
Ngày tải lên: 07/08/2014, 18:20
Báo cáo y học: " Clinical utility of tibial motor and sensory nerve conduction studies with motor recording from the flexor hallucis brevis: a methodological and reliability study" pptx
... aspect of the cuboid and lateral cuneiform bones, with distal attachment on both the medial and lateral sides of the proximal phalanx of the hallux The FHB acts to flex the proximal phalanx of digit ... ages of 18 and 35 were recruited from the student and community populations surrounding a university in Southeastern Michigan A sub-group of 40 participants were Galloway et al Journal of Foot and ... present mean and standard deviation values for all parameters at baseline and at subsequent week, 16 week and 24 week data collection sessions The root mean square error, standard error of the measurement,...
Ngày tải lên: 10/08/2014, 21:24
báo cáo khoa học: "Effect of iron oxide and gold nanoparticles on bacterial growth leading towards biological application" ppt
... University of Kalyani A Bandyopadhyay: M.Sc Microbiology, Research Scholar, University of Kalyani K Sarkar: M.Sc., PhD, Asst Professor, Dept of Microbiology, University of Kalyani Page of 7 10 11 ... mM of glutathione was dissolved in 40 mL of distilled water, and 1.0 mM of HAuCl4 was dissolved in 80 mL of methanol Mixing the two solutions generates a cloudy, white suspension Addition of ... diverse range of metal oxide nanoparticles that may result in oxidative stress, inflammation and consequent damage to proteins, membranes and DNA which is one of the primary mechanisms of nanotoxicity...
Ngày tải lên: 11/08/2014, 00:23
Báo cáo y học: "Fluctuations of inspired concentrations of nitric oxide and nitrogen dioxide during mechanical ventilation" ppt
... products HNO2 and HNO3 which dissolves into NO2– and NO3– + H+ NO2 formation should be increased according to the kinetics of this reaction with higher concentrations of NO and O2 and a longer ... effect of increasing O2 concentrations the same set of measurements was then repeated for an FiO2 of 0.5 and 1.0 A chemiluminescence analyser (CLD 700, Eco Physics, Duernten, Switzerland) was ... inspiration and in proportion to flow Therefore, the aim of our study was to evaluate the NO and NO2 concentrations along the inspiratory limb of the respiratory tubing during mechanical ventilation and...
Ngày tải lên: 12/08/2014, 18:20
The role of nitric oxide and other gaseous mediators in cardiovascular disease models; emphasis on septic shock
... Effect of flurbiprofen or nitroflurbiprofen on NF-κB activation in the liver of rats at h after LPS injection Figure 6-7 Effect of flurbiprofen or nitroflurbiprofen on the proteolytic activity of ... LPS pre-treatment VII List of Figures with either equivalent volume of vehicle, flurbiprofen or nitroflurbiprofen Figure 6-2 Effect of flurbiprofen or nitroflurbiprofen on MPO activity Figure ... of NO at rates that may only be limited by the availability of substrates and cofactors Mainly for these reasons the constitutive and inducible isoforms of NOS are often referred to as low- and...
Ngày tải lên: 14/09/2015, 14:16