the electrical conductivity of tissues

... inferred from the change of sheet resistance There will then be a crossover point at h where the degrees of oxidation of the two surface terminations switch The VH termination appears then to be ... the condition of the surface produced by H termination The simplest situation for the H-terminated surface would be complete passivation of surface states by H (including the “poisoning” of the ... times The sheet resistance of the HF-treated samples then increases more rapidly, crossing the sheet resistance of the VH-treated samples at approximately h of exposure, after which time, the HF-treated...

Ngày tải lên: 21/06/2014, 03:20

... in the ECM, and the pH of the ECM control the filtering aspect of the ECM The ECM is a transit area for the passage of nutrients from the bloodstream into the cells and for toxins released by the ... between the capillaries and the cells (Reichart, 1999) The concentration of minerals in the ECM, the composition of proteoglycans, the molecular weight of the proteoglycans, the amount of bound ... in the ECM These factors create areas of high electrical resistance Tissues of the body that are injured have a higher electrical resistance than the surrounding tissue The cell membranes of these...

Ngày tải lên: 14/02/2014, 22:20

... the micro-scale induce higher values for the electrical conductivity in MWCNT/polymer films This study focuses on the influence of the dispersion method on the overall electrical properties of ... relating the electrical response (Figures 2, 3) with the level of mixing of the VGCNF in the matrix (Figure 1), it appears that the samples with better VGCNF dispersion exhibit the lowest conductivity ... predicts the bound 2E-3 ≤ F c ≤ 3E-3 for an average aspect ratio of 433 The F c found in this study for Methods and (6E-4

Ngày tải lên: 21/06/2014, 03:20

... average of many points on DNA for each Ag? concentration (The relative conductance is the ratio of the conductance of Ag-doped DNA ropes to the conductance of the loop which was composed of tip, ... shows the I–V curves of DNA(a) and Ag-doped DNA(b-f) in transverse direction The curves present almost linear and symmetric behavior in the bias range of -0.2 to 0.2 V With the increase of the ... curve of DNA showed a little excursion The reason for this is studied further Considering the effects of electrodes, the relative conductance of Ag-doped DNA is calculated by I–V curve and is the...

Ngày tải lên: 22/06/2014, 01:20

... σ is the electrical conductivity and RS is the sheet resistivity σ = 1/RS 2.7 (2) Electrical Conductivity of Thin Film Under Different Intensity of Light The electrical conductivity of the thin ... Rate (Vs–1) 0.050005 Electrical Conductivity of Chlorophyll 82 the thinner the film will be The thickness of the film also depends on the concentration of the solution and the solvent After a ... lowest value of electrical conductivity is only 3%) From here, it concludes that, the thicker the PT thin film, the higher the electrical conductivity However, the thickness of the PT thin film...

Ngày tải lên: 07/08/2014, 14:20

... cao chuyển đạo V5 V6 Many efforts have been made to lay down criteria for the diagnosis of left ventricular hypertrophy The following criteria have gained wide acceptance : R in V5 or V6 plus S ... criterion applies only in individuals over 25 years of age In younger persons, R in V5 or V6 plus S in V1 should exceed 40 mm before the diagnosis of left ventricular hypertrophy can be made R in ... chiều trục phải The diagnostic criterion for right ventricular hypertrophy is: R wave in V1 equal to or greater than the S wave and at least mm tall RVH features include the marked right axis...

Ngày tải lên: 12/08/2014, 20:15

... accelerates the formation of the void Therefore, the current crowding effect can cause an increase in the rate of failure propagation through the combined effect of the increase in current density and the ... 1982) The theoretical studies for the driving force started from the early 1950’s with the work of Seith and Wever (Seith, 1953) Their measurement on the mass transport across the phase diagram of ... Hume-Rothery alloys provided the first evidence in terms of the nature of the driving force for EM, because they observed that the direction of atomic motion can be reversed and is correlated with the...

Ngày tải lên: 10/09/2015, 15:53

... difficulties they met are the lack of basic knowledge and new terms Moreover, the main reason they got bad marks are that most of them did not learn EEE until the test Based on the results of this ... exception The objective of this report was to investigate the advantages and disadvantages of learning EEE as well as the main reason why they did not get good mark in the final test Techniques of gathering ... Faculty of Foreign Language Ha Noi University of Technology The Situation of Learning English for Electrical Engineering of D06k52 Students in Faculty of Foreign Language, Ha Noi University of Technology...

Ngày tải lên: 13/12/2013, 12:15

... evaluating the effect of failures in auxiliary electrical spstem on the reliability of a generating unit We would like t o note that the performance of auxiliary electrical system (and of other systems) ... units in the station Some of the buses can be supplied from the station common bus or thebuses of other units For this reason, the whole auxiliary electrical system of the stationwill have to be ... t o the other material presentedin the paper, we offer the following comments and questions The cost of unreliability is mentioned in the paper but no cost estimateshavebeenassociatedwiththecalculatedreliabilityindices...

Ngày tải lên: 03/01/2014, 19:39

... temperature-independent part of the boundary resistivity whereas the ρ1 to the temperature-dependent part The problem was not, however, the determination of n, D or D but their physical foundation The procedures ... the ratio lG = LS /LA of the linear extents LS , determined on the basis of the grain domain perimeter G − length (in unit of image size) and LA , determined on the basis of the grain domain area ... to the very low boundary conductivity of 10−5 in unit of e2 / ) Our model estimated the pure boundary resistivity to be ρ0 of order 50 × 10−5 Ωcm (Table 2), which suggests the conductivity of...

Ngày tải lên: 14/03/2014, 13:20

... at 30–38 V The result of Fig seems to be caused by the effect of surface oxide surrounding the silicon core Then, the applied current increased, resulting in the melting of the end of the SiNW ... SiNW contacting the tungsten probe In Fig 4b, the features of the contacts of the fused SiNW on the two tungsten probes are shown It is evident that the end of the SiNW contacting the probe was ... constant at the measured temperature Fig is a schematic drawing of the electrical measurement of the SiNW covered with the silicon oxide layer The total resistance, R, is the sum of those of SiNW...

Ngày tải lên: 16/03/2014, 15:05

... cases, even the concentration of the adsorbed gas ions can be measured from the change of potential barrier w15x The potential barrier at the GB of the polycrystal impedes the flow of the electrons ... increase the porosity of the composite film and in turn the sensitivity of the sensor w3x To our knowledge, however, the origin of the binder effects on the sensing characteristics of WO films ... samples Therefore, the decrease of sensitivity in the temperature range of 200–3508C observed in Fig is not due to the desorption of NO x gas The decrease of sensitivity due to the desorption of NO...

Ngày tải lên: 20/03/2014, 13:04

... Several of these drugs are currently in Phase I trials as single agents or in combination with chemotherapy [7-11] A critical aspect in the design of these trials has been the selection of appropriate ... into the IMCG and assisted in the conception of this study MTB performed ELISA assays and assisted in the writing of this manuscript LFL assisted in the conception, design, and coordination of ... coordination, supervised the analysis and interpretation of the data, and writing the 10 11 12 13 Tao Y, Pinzi V, Bourhis J, Deutsch E: Mechanisms of disease: signaling of the insulin-like growth...

Ngày tải lên: 18/06/2014, 15:20

... crystallinity of the stack and not to the reduction of the oxide thickness Figure 1f also shows that the rms value of the current and, therefore, the electrical inhomogeneity of the polycrystalline stack ... equivalent oxide thickness (EOT) [17] The impact of the polycrystallization of the Al O layer on the electrical conduction of the gate stack has been analyzed at the nanoscale from current and CPD ... conductive areas is similar to the dimensions of the crystals Therefore, the regions with a smaller conductivity could be related to the grains of the polycrystalline structure: the polycrystals are more...

Ngày tải lên: 21/06/2014, 06:20

... as Rsh of the cell is in the order of MX.cm2 The short circuit current increases by a factor of three due to the decrease of Rs Contact and Sheet Resistances To identify the origin of the large ... comparison with the semiconductor sheet resistance, as shown in Fig Therefore, the reduction of series resistance is largely due to the reduction of the material’s resistivity The implication of the results ... Extraction of Series Resistance and Apparent Ideality Factor (n) Special attention has been paid to the analysis of the series resistance (Rs) of the cell Instead of simply calculating the slope of the...

Ngày tải lên: 21/06/2014, 07:20

... in the direction of the thumb, it cuts the lines of force of the magnetic field that are in the direction of the forefinger The current produced will move in the conductor in the direction of the ... could impart a high velocity to the water in the pipe, he failed to realize that the higher the velocity of the fluid, the greater the resistance of the pipe walls to the fluid flow; as a result, ... through the wires on the vertical supports of the machine to the commutator located on the shaft between the crank and the horseshoe magnet The electric current left the magneto via the two curly...

Ngày tải lên: 05/07/2014, 07:18

... helium It is the most lightweight of the lightweight metals, the alkali metals According to the rules of chemistry it behaves similarly as the other metals of the same column of the periodic ... with the model of the molecular orbital (MO) and band theory10 The oxidation potential of the electrolyte has to be higher than the potential of the anode (or than the Fermi energy of the anodic ... structure – as long as there is no disorder within the planes The geometry of the edges is either of the ‘arm chair’ or of the ‘zigzag’ type (Figure 18.36) Here the carbon atoms themselves are also...

Ngày tải lên: 05/07/2014, 07:20

... of exercise, will prevent the loss of muscle mass of critically ill patients The aim of our study was to assess the effect of EMS on muscle mass preservation in critically ill patients with the ... blinded to the randomization, while the repetition of the measurement was made by the same operator All patients were in the supine position with legs lying flat in extension The position of the probe ... limitations were the presence of oedema and the extensive exclusion criteria that did not allow the evaluation of the muscle mass in a considerable number of patients in both legs of the study Measurements...

Ngày tải lên: 13/08/2014, 19:20

Ngày tải lên: 21/09/2014, 16:24

... like the theory of psychology of activities of A.N.Leonchiep, theory of formation of period-based intellectual actions of P.Ia.Galperin, theory of learning via the circle of experience is one of ... shown the factual situation of the preparation and design of teaching activities; the using of teaching methods , techniques of teaching; the reality of organizing the teaching activities of the ... shows the scores of the experimental group was higher than the control group Besides, the squared error of the results of the experimental group was significantly smaller than the control group, the...

Ngày tải lên: 15/09/2015, 15:17