investigation of radionuclide activity and determination of the absorption coefficient of gamma radiation
Phương pháp đo đạc các thông số môi trường
... 390 37.5 Thermoluminescent Dosimeter, 391 Practical Exercise 13 Investigation of Radionuclide Activity and Determination of the Absorption Coefficient of Gamma Radiation Objectives, 393 Theory, ... to the Earth’s gravitational field; in addition, there is the effect of their thermal motion on the spatial distribution of the molecules The combined action of the gravitational field and thermal ... m) The pressure of the surrounding water is transmitted to all internal parts of the body and the state of pressure equilibrium is established the internal pressure of the body is equal to the...
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Theoretical modeling of combustion characteristics and performance parameters of biodiesel in DI diesel engine with variable compression ratio
... that of obtained by Diesel-rk software hence, the developed mathematical model is suitable for the prediction of the combustion and performance characteristics of the C.I engine and further work ... where 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 the ... Effect of compression ratio on the maximum pressure 5.4.2 Ignition delay The delay period can be defined as the time difference between the start of combustion and start of injection The physical and...
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Tài liệu PERFORMANCE TESTING OF OPTICAL FIBRE LINKS pptx
... leads L1 & T1 at the centre Keep the light source at the Near End and take the power meter to the Far End Clean the test cord and Link connector ends Connect them to the ends of the Optical Fibre ... Channel, the x adaptors remain on the launch and tail cords.] It is usual to keep the power meter at the Near End (eg FD or ER) and take the light source to the Far End Clean the test cord and Link ... cord) and record the result, or set the power meter to “0.00” dB The reference is now set DO NOT REMOVE THE CONNECTIONS TO THE LIGHT SOURCE OR POWER METER (Tip: tape them onto the meters) otherwise...
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Báo cáo Y học: Processing, stability, and kinetic parameters of C5a peptidase from Streptococcus pyogenes pptx
... In the present study, we have focused on the mode of C5a peptidase maturation and determination of the exact borders of its pro-sequence region We have also evaluated the thermal stability and ... unaffected (Fig 5C) Reduction of the intrinsic stability of the protein in the presence of EDTA and the absence of detectable stabilization effect in the presence of mM Ca2+ indicate that C5a ... from the parent VVASQLRANISH peptide To assess the thermal stability of C5a peptidase, we investigated the effect of temperature on both proteolytic activity and structural integrity of the enzyme...
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GAIT PARAMETERS OF HEALTHY, ELDERLY PEOPLE pot
... about the longitudinal axis of the distal segment In this research the knee angle is defined as the angle between the spatial vectors joining the lateral malleolus to the head of the fibula and ... angle The value of this angle does not depend on the spatial position of the lower limb, as the component angles do, only on the relative position of the shank to the thigh For each subject, the ... depend on the spatial position of the lower limb, as the component angles do, only on the relative position of the thigh to the pelvis For each subject, the maximum (peak of flexion) and minimum...
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Comparing the Auditability of Optical Scan, Voter Verified Paper Audit Trail (VVPAT) and Video (VVVAT) Ballot Systems potx
... of the counted races In the close condition, the margin of victory was roughly 5% of the total vote, while in the lopsided condition, the margin of victory was roughly 30% of the total vote There ... election, the ballot roll-off rate, or the rate of abstention as a function of ballot position, was made higher for those races further down the ballot based on the findings of Nichols and Strizek ... reliable effects of the rate of rejected ballots or the closeness of the race that was counted Taking the absolute values of the error measures above, that is, treating an undercount the same as...
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Báo cáo khoa học: "The Parameters of an Operational Machine Translation System" doc
... language The third group had the Russian language capability but no expertise in the substance And the fourth group had neither knowledge of the Russian language nor of the discipline of the test ... permit the storage of only the stem form of words with the computer carrying out the necessary logical analysis to identify the morphology and the function of a word in a sentence For the time ... appears to be in the immediate offing and an ultimate input rate of 100 words per second The Parameters of Translation As mentioned above there are some who will argue the value of the special purpose...
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optics handbook of optical materials - webber
... damage, and materials preparation and fabrication Much of the numerical data in this handbook is from Volumes III, IV, V, and Supplement of the CRC Handbook of Laser Science and Technology These ... descriptions of properties and their measurement (the contents of the volumes and the contributors are given in the following pages) In many instances the data in these volumes have been reformatted and ... Scandium metaphosphate Scandium molybdate Scandium niobate Scandium orthosilicate Scandium oxide Scandium phosphate Scandium silicate Scandium tantalate Scandium titanate Scandium tungstate Scandium...
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Báo cáo khoa học: "The Parameters of Conversational Style" ppt
... surfaced in the setting of a casual conversation at dinner; it would be premature to generalize for other settings) These and other features of the speech of the New Yorkers sometimes struck the Californians ... honor their need for independence The use of contrasting devices by the Californians led to the impression on some of the New Yorkers that they were deficient in honoring the need for community Of ... Lakoff, R 1973 The logic of politeness, or minding your p's and q's Papers from the ninth regional meeting of the Chicago Linguistics Society Scollon, R 1980 The machine stops: Silence in the...
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the application of ultrasound radiation to the synthesis of nanocrystalline
... those in the sonochemistry reaction The microwave and sonochemical results of the BET surface area and the crystallite size of all the materials, as obtained from HRSEM and from XRD by the Scherrer ... with the precursor to form metal–oxygen–metal groups (Scheme 2, Eq 2) The combination of these two equations leads to the elimination of R–X and H–X The other possibility is the elimination of ... solvothermal reaction is endothermic, and thus thermodynamic calculations were carried out DH0 : the enthalpy of the formation of the synthesis of titanium f oxide from benzyl alcohol and titanium tetra...
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Báo cáo khoa học: "Specifying the Parameters of Centering Theory: a Corpus-Based Evaluation using Text from Application-Oriented Domains" pot
... to the particular configuration of parameters chosen, and then to compute the CFs and the CB (if any) of each utterance on the basis of the anaphoric information and according to the notion of ... The principle we used to evaluate the different configurations of the theory was that the best definition of the parameters was the one that would lead to the fewest violations of Constraint and ... produced them; the texts in the pharmaceutical domain are leaflets providing the patients with the legally mandatory information about their medicine The total size of the corpus is of about 6,000...
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temporal profile of optical transmission probe for pulsed laser heating of amorphous silicon films
... affect the magnitude of the transient transmissivity The long-term temperature field depends mainly on the substrate thermal properties The detailed shape of the pulse intensity temporal profile and ... t* < t < t1 600 (54 (5b) where dsi and d,q are the thicknesses of the a-Si layer and the substrate correspondingly Initially the structure is isothermal at the ambient temperature T(x,O) = T, ... (4) Convection and thermal radiation losses are negligible for the high incident laser pulse intensities used (of the order of 10” W/m2), and time scales considered in this work The temperature...
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three dimensional mapping of optical near field of a nanoscale bowtie antenna
... mapping of the near-field intensity can be acquired by turning off the feedback and scanning the probe over the sample at a manually set height This approach allows the measurement of the optical ... with FWHM of 157 nm, the measurement of which is limited by the aperture size of the NSOM probe The intensity of near-field decreases quickly within 200 nm When the light is polarized in the y-direction, ... located at the edges of the bowtie aperture These results are consistent with the numerical simulations of the near-field distributions of a bowtie antenna Acknowledgments The financial support of this...
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numerical study of optical nanolithography using nanoscale bow tie shaped nano apertures
... the x–y plane at distances (z) nm, 16 nm and 40 nm behind the exit plane of the bow-tie aperture are shown The intensity is normalized with the incident intensity, that is, the intensity of the ... On the other hand, there are many process difficulties to overcome, such as accurate fabrication of bow-tie apertures and maintaining an intimate contact between the mask and the photoresist These ... However, in the study of the near field of nanostructures, the cell size should be much smaller than the smallest dimensions of nanostructures to ensure the physical convergence, especially when the...
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three dimensional mapping of optical near field of a nanoscale bowtie antenna
... mapping of the near-field intensity can be acquired by turning off the feedback and scanning the probe over the sample at a manually set height This approach allows the measurement of the optical ... with FWHM of 157 nm, the measurement of which is limited by the aperture size of the NSOM probe The intensity of near-field decreases quickly within 200 nm When the light is polarized in the y-direction, ... located at the edges of the bowtie aperture These results are consistent with the numerical simulations of the near-field distributions of a bowtie antenna Acknowledgments The financial support of this...
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study of blueshift of optical band gap in zinc oxide (zno) nanoparticles
... extrapolation of the straight line in Fig 2(b) to (αhν)2 ¼ gives the value of band gap energy Eg The optical band gap (Eg) is found to be size dependent and there is an increase in the band gap of the ... electron microscope The band gap of the ZnO nanoparticle is calculated from the UV absorption result X-ray diffraction analyses: In order to identify the phase and to know the structure of ZnO nanoparticles, ... ¼3.301, b ¼294.0 and c¼ À 1.09, λ1/2 (nm) is the wavelength at which absorption becomes half of that at the shoulder, and D (Å) is the diameter of the particle It is observed that there are discrepancies...
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báo cáo hóa học: " Effect of optical flow versus attentional strategy on gait in Parkinson''''s Disease: a study with a portable optical stimulating device" pptx
... increase of stride length Finally, regarding the pathophysiological model of altered gait in PD, in favor of the hypothesis of the involvement of other systems in addition to basal ganglia, there ... in the design of the study, data analysis and helped to draft the manuscript MT participated in data analysis and performed the statistical analysis AM participated in the design of the study and ... participated to the study All had given written informed consent and the protocol had approval from the local Ethical Committee The clinical characteristics of the subjects at the time of the study,...
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Báo cáo hóa học: " Effective harvesting, detection, and conversion of IR radiation due to quantum dots with built-in charge" docx
... In the case of the intra-dot doping, the dot charge nq is equal to the dot population n reduced by the number of dopants p in the dot, i.e., nq = n - p In the case of the inter-dot doping, the ... charge As expected, these local barriers are independent on the QD position in the device and are strongly asymmetric because of the asymmetry of the QD shape Figure shows the height of local potential ... on doping The pre-exponential factor in Equation describes the increase of the absorption with increasing number of electrons in the dot n The exponential factor describes the effect of potential...
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