Comparison of two dynamic measurement methods of odor and odorant emission rates from freshly dewatered biosolids

2011 ◽  
Vol 13 (6) ◽  
pp. 1746 ◽  
Author(s):  
Tingting Wang ◽  
Chakkrid Sattayatewa ◽  
Dhesikan Venkatesan ◽  
Kenneth E. Noll ◽  
Krishna R. Pagilla ◽  
...  
Keyword(s):  
Dynamic Measurement ◽  
Measurement Methods ◽  
Emission Rates

scholarly journals Static and Dynamic Thermal Properties of a Pd40Ni40Si20 Glassy Alloy

Metals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1157
Author(s):  
Ludmil Drenchev ◽  
Tony Spassov ◽  
Georgi Stefanov ◽  
Akihisa Inoue ◽  
Stoyko Gyurov
Keyword(s):  
Thermal Properties ◽  
Glassy Alloy ◽  
Supercooled Liquid ◽  
Supercooled Liquid Region ◽  
Dynamic Measurement ◽  
Measurement Methods ◽  
Liquid Region ◽  
Transport Barrier ◽  
Glassy Alloys ◽  
Atomic Transport

The thermal properties of a Pd40Ni40Si20 glassy alloy with the largest supercooled liquid region among the glassy alloys containing Si as a metalloid element are studied using static and dynamic measurement methods. The relatively wide supercooled liquid region of 45 K, defined by the temperature interval between the glass transition temperature (Tg) and the onset temperature of crystallization (Tx), and the viscosity of the supercooled liquid, varying from 2.7 × 1010 to 3.2 × 1011 Pa·s, make this glass suitable for the introduction of controlled pores by a viscous flow in the temperature range Tg~Tx. The obtained activation energy for crystallization, 272 ± 19 kJ/mol, is slightly higher than that of Tg (228 ± 11 kJ/mol), indicating the dominant contribution of the atomic transport barrier in the overall energy barrier for crystallization.

scholarly journals Measurement problems of miniature electrical machines

2021 ◽  
Vol 1199 (1) ◽  
pp. 012095
Author(s):  
M Bodnicki
Keyword(s):  
Experimental Research ◽  
Dynamic Characteristics ◽  
Dynamic Properties ◽  
Dynamic Measurement ◽  
Measurement Methods ◽  
Electrical Machines ◽  
Time Constants ◽  
Static And Dynamic Characteristics ◽  
Original Measurement

Abstract The article presents the issue related to experimental research on the determination of static and dynamic properties of miniature electrical machines. The tested objects are, for example, micromotors with body diameters in the order of single millimetres, or linear drives with millimetre dimensions. The main measurement problems were presented and the specificity of these measurements was characterized. First of all, electromechanical time constants have small values due to small values of masses or mass moments of inertia. The force quantities (forces and torques) generated by such actuators also require the use of unconventional measuring transducers. The research may concern the identification of static and dynamic characteristics, but also methods of dynamic measurement of the quantities used in the control of such micromachines are presented. Practical examples of original measurement methods and systems are presented.

Emission rates from range-top burners—Assessment of measurement methods

1987 ◽  
Vol 21 (2) ◽  
pp. 285-289 ◽  
Author(s):  
Demetrios J. Moschandreas ◽  
Suresh M. Relwani ◽  
Irwin H. Billick ◽  
Robert A. Macriss
Keyword(s):  
Measurement Methods ◽  
Emission Rates

scholarly journals P1.22 Dynamic measurement methods for solid electrolyte gas sensors

2019 ◽  
Author(s):  
D. Schönauer-Kamin ◽  
N. Donker ◽  
R. Moos ◽  
A. Ruchets ◽  
J. Zosel ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Gas Sensors ◽  
Dynamic Measurement ◽  
Measurement Methods

Analysis of methods for determining the refraction coefficient in the atmospheric surface layer

2019 ◽  
Vol 947 (5) ◽  
pp. 2-11
Author(s):  
D.V. Dementiev
Keyword(s):  
Refractive Index ◽  
Surface Layer ◽  
Electromagnetic Wave ◽  
Atmospheric Surface Layer ◽  
Dynamic Measurement ◽  
Measurement Methods ◽  
Time Interval ◽  
Refraction Coefficient ◽  
Practical Application ◽  
High Degree

In the instructions for modern geodetic instruments, it is recommended to introduce an amendment for the refraction, taking into account the “standard” refraction coefficient k = 0,13÷0,2. In fact, in the surface layer of the atmosphere, the refractive index can range from –6 to 6. Various classical methods of determining refraction are analyzed. Conclusions based on experimental work made by various researchers are presented. Using the results of numerous studies of various methods for determining vertical refraction, it can be concluded that all classical (static) methods do not provide a high degree of reliability to determine the refraction. An exception is the method of determining refraction at a neutral temperature stratification of the atmosphere, when the time interval is not very long. For this reason, their practical application is extremely limited. To improve the accuracy of determining refraction, it is necessary to take into account the turbulence of the atmosphere, that is, to use dynamic measurement methods that take the fluctuations of the electromagnetic wave passing through the path into account.

scholarly journals Dynamic measuring methods: a review

ACTA IMEKO ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 64 ◽  
Author(s):  
Aleksandr Shestakov
Keyword(s):  
Dynamic Characteristics ◽  
Measuring Equipment ◽  
Dynamic Properties ◽  
Dynamic Measurement ◽  
Measurement Methods ◽  
Historical Background ◽  
Dynamic Measurements ◽  
Measuring Methods ◽  
Dynamic Measuring ◽  
Dynamic Errors

The paper presents an overview of the directions in the development of dynamic measurement methods. First, the concept of dynamic measurements and a short historical background are outlined. The author describes several types of dynamic characteristics of measuring equipment, which fully characterise their dynamic properties. The next part is devoted to an analysis of the types of dynamic errors and their corrections. In conclusion, an overview of the identification of dynamic characteristics is given.

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