Kinetic parameters of glow peaks (as many as 14 in the range of 75–575°C) of colorless microcline have been successfully achieved to a high degree of certainty by resorting to computerized glow curve deconvolu
We say that a curve is concave up if it is shaped like a bowl, and a curve is concave up at any point where its second derivative is positive. Similarly, a curve is concave down if it is shaped like an upside down bowl, and a curve is concave...
The first derivative tells us the slope of a function, and the second derivative tells us something about the concavity of the curve. Where the second derivative is positive, a curve is concave up; where it is negative, a curve is co...
To achieve this goal, it is necessary to determine the absolute concentrations of oxygenated and deoxygenated haemoglobin. Others have used the second derivative of the water spectrum in the near infrared region to calculate absolute deoxy-haemoglobin concentra- tion [3], but the calculation is ...
Furthermore, although the second derivative of the vehicle’s speed, or ‘jerk’, has been recognized as a risk indicator [21], it is not included in this paper. The average and standard deviation of the positive acceleration and negative acceleration (deceleration) are calculated based on the...
are among the first to present a method to estimate formation permeability based on impulse solution, which assumes injection time is negligibly short compared to shut-in time, but it requires after-closure pseudo-radial flow and knowledge of reservoir height (i.e., the thickness of the permea...
Microorganisms must distribute their limited resources among different physiological functions, including those that do not directly contribute to growth. In this study, we investigate the allocation of resources to flagellar swimming, the most prominent
spectroscopy (ATR–FTIR), thermogravimetry (TG) and derivative thermogravimetry (DTG), and pyrolysis–gas chromatography/mass spectrometry (Py–GC/MS) analyses. The ship responsible for the collision could be identified by characterization and by performing a comparative analysis of the extracted paint....
In the present study, first, we analytically reveal that the activities of motor primitives need to be determined based on the PE such that the motor memory can be formed and maintained in a randomly changing environment. Second, to validate the idea of incorporating the PE into motor learning...
A point at which the function changes its concavity is known as point of inflection. Second derivative test : Let f(x) be the given function. If f″(x) exists, the points at which f″(x)=0 are the points of inflection. (1) If f″(x)<0 then function is concave ...