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1
Effect of the properties of materials on temperature in contacts in thermoelectric rapid inspection
1986-06-01

Investigations were conducted into the coefficients of absolute differential thermal emf and the specific resistivity of specimens of binary iron-silicon alloys; their integral thermal emf was measured in a rapid inspection device with changeable electrodes. The effect of the material of the ...

Energy Citations Database

2
THERMAL EMF OF THE SOLID SOLUTIONS OF INDIUM ...
1967-08-29

... Title : THERMAL EMF OF THE SOLID SOLUTIONS OF INDIUM PHOSPHIDE AND GALLIUM ARSENIDE,. ... Report Date : 29 AUG 1967. ...

DTIC Science & Technology

3
THERMAL CONDUCTIVITY, ELECTRICAL CONDUCTIVITY ...

... Title : THERMAL CONDUCTIVITY, ELECTRICAL CONDUCTIVITY AND THERMO-EMF OF TITANIUM ALLOYED WITH CHROMIUM,. ...

DTIC Science & Technology

4
Variation of Electric Conductivity and Thermal EMF at Fusion ...
1972-12-29

... DEC 1972. Pagination or Media Count : 9. Abstract : Experimental results are given for the electrical conductance and thermal emf of copper sulfide ...

DTIC Science & Technology

5
Thermal emf in alloys of nickel with hafnium, tungsten, and rhenium in range 77 to 1300$sup 0$K
1973-01-01

Thermo-emf's were measured in Ni--Hf, Ni--W and Ni--Re alloys at 273 to 1273 deg K with respect to platinum, and at 77 to 273 deg K with respect to copper. The thermo-emf value in Ni--W and Ni--Re alloys is primarily positive with the exception of the Ni + 1.08 at.% Re where at temperatures above 400 deg K, S < O. In alloys containing ...

Energy Citations Database

6
Effect of homogenization on the transport properties of alloys in the Bi-Sb system
1986-08-01

Alloys of the Bi-Sb system are used in instruments manufacturing due to their transport properties (electrical resistivity, Hall coefficient, differential thermo-emf, etc.). In this work, the results of an investigation of the thermal stability of the dendritic structure and the effect of homogenization on the transport properties of Bi alloys with 12 at.% ...

Energy Citations Database

7
Thermal Emf. Thermal and Electrical Conductivity,
1973-01-02

... Abstract : There is little data in the literature on the physical properties of alloys based on rare earth metals (REM) and even pure REM. ...

DTIC Science & Technology

8
Variation of Electric Conductivity and Thermal E.M.F. at Fusion of Copper Chalcogenides (Ob Izmenii Elektroporvodnosti i Termo-E.D.S. pri Plavlenii Khalkogenidov Medi).
1972-01-01

Experimental results are given for the electrical conductance and thermal emf of copper sulfide, copper selenide, and copper telluride.

National Technical Information Service (NTIS)

9
AN ABSOLUTE MEASUREMENT OF THERMAL NEUTRON ...
1965-05-01

... Accession Number : AD0616613. Title : AN ABSOLUTE MEASUREMENT OF THERMAL NEUTRON ALBEDO FOR SEVERAL MATERIALS. ...

DTIC Science & Technology

10
Free Radical Release and HSP70 Expression in Two Human Immune-Relevant Cell Lines after Exposure to 1800 MHz ...

... during RF EMF exposure. To investigate the potential thermal effects of RF EMF radiation, heat treatment (40°C) ... after RF EMF exposure demonstrates the absence of thermal effects in our exposure system...

NBII National Biological Information Infrastructure

11
The Thermoelectric Emf of Mercury Relative to Platinum.
1967-01-01

It has been suggested that published values for the thermal emf of mercury relative to platinum were incorrect and hitherto no values were available at temperatures below 0 deg. C. Equipment was designed and calibrations made in the range -35 to +200C rep...

National Technical Information Service (NTIS)

12
Non-Ionizing Radiation: Evaluation of General Public's Exposures in Greece and Albania
2010-01-01

With the growth of electric power generation and transmission, the development of new telecommunication systems and advances in medical and industrial applications, humans are increasingly exposed to electromagnetic fields (EMF). The need to understand the potentially harmful effects of EMF on human health has been met by several decades of research, but ...

NASA Astrophysics Data System (ADS)

13
EFFECT OF PRESSURE ON emf OF THERMOCOUPLES
1961-03-01

"Pressure" thermal emf's have been measured for constantan, Pt, Ni, alumel, Pt 10% Rh, Cu, chromel, and Ni 18% Mo for a DELTA T of 100 deg C over a pressure range 0 to 72 kbar. Corrections due to pressure for common thermocouples made of pairs of these metals have been deduced. A number of thermocouple pairs have been compared at ...

Energy Citations Database

14
The effect of ultra-high pressure on the emf of thermocouples
1977-01-01

An indirect method which does not require a direct knowledge of the temperature of the pressurized junction was used to investigate the effect of ultra-high pressure on the thermal emf of a chromel/alumel thermocouple. The unknown temperature was written parametrically as a function of a directly measured quantity, the electrical power delivered to the ...

NASA Astrophysics Data System (ADS)

15
Appearance of thermochemical emf in some conducting materials
1983-05-01

The appearance of an emf in conductors when they are heated is described by the Seebeck and Thompson effects. If some part of the surface of a conductor is covered by a pyrotechnical material and ignited, then while the pyrotechnical material is burning and after it has burned, an emf arises at the ends of the conductor. The direction of the ...

Energy Citations Database

16
A HALF-BRIDGE TYPE STRAIN GAGE FOR USE AT ...
1964-10-01

... it is felt that a brief review of the theory concerning these bridges is pertinent ... elements, thermal emf's can be generated in a Half-Bridge Strain Gage ...

DTIC Science & Technology

17
Electromagnetic field (EMF) effects on channel activity of nanopore OmpF protein.
2009-07-15

In this study, the effects of nonionizing electromagnetic fields (EMF; 925 MHz) on the OmpF porin channel have been characterized at the single-channel level. Channel activity was recorded in real time by the voltage clamp method. Our results showed an increase in the frequency of channel gating and voltage sensitivity. The effects of EMF lasted for ...

PubMed

18
Analysis of induced EMF waveforms and torque ripple in a brushless permanent magnet machine
1996-01-01

Permanent magnet machines with trapezoidal back EMF waveform have been the subject of several papers in the past. The simplicity in control and the absence of an absolute position sensor makes this type of motor very attractive. Idealized analysis of such a machine is simple and will result in trapezoidal or square wave back EMF ...

Energy Citations Database

19
THE EFFECT OF COLD WORKING, HEAT TREATMENT, AND OXIDATION ON THE THERMAL emf OF NICKEL-BASE THERMOELEMENTS
1962-01-01

The behavior of thermocouples composed of nickel-base thermoelements was considered by systematically investigating the effects of cold working and annealing and oxidation. Evaluation of these effects was based on electrical resistance, metallography, hardness, dimensional changes, oxidation rates, and thermal emf studies. The major research ...

Energy Citations Database

20
Long-term electromagnetic field treatment enhances brain mitochondrial function of both Alzheimer's transgenic mice and normal mice: a mechanism for electromagnetic field-induced cognitive benefit?
2011-04-13

We have recently reported that long-term exposure to high frequency electromagnetic field (EMF) treatment not only prevents or reverses cognitive impairment in Alzheimer's transgenic (Tg) mice, but also improves memory in normal mice. To elucidate the possible mechanism(s) for these EMF-induced cognitive benefits, brain mitochondrial function was evaluated ...

PubMed

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21
Electromagnetic fields stress living cells.
2009-03-05

Electromagnetic fields (EMF), in both ELF (extremely low frequency) and radio frequency (RF) ranges, activate the cellular stress response, a protective mechanism that induces the expression of stress response genes, e.g., HSP70, and increased levels of stress proteins, e.g., hsp70. The 20 different stress protein families are evolutionarily conserved and act as 'chaperones' ...

PubMed

22
Absolute Length Changes by Remote Interferometry.
1975-12-10

... Title : Absolute Length Changes by Remote Interferometry. ... Descriptors : *Interferometers, *Dilatometers, *Thermal stability, *Change detection ...

DTIC Science & Technology

23
Biological monitoring of non-thermal effects of mobile phone radiation: recent approaches and challenges.
2010-12-15

This review describes recent developments in analysing the influence of radio-frequency electromagnetic fields (RF-EMFs ) on biological systems by monitoring the cellular stress response as well as overall gene expression. Recent data on the initiation and modulation of the classical cellular stress response by RF-EMFs, comprising expression of heat shock ...

PubMed

24
Thermal electromotive force change for 87Pt13Rh/Pt thermocouples ...

The thermal-emf change for 87F%13Rh/Pt thermocouples was determined by recal- .... Noble -metal thermocouples are commonly used as high-temperature sensors. ...

NASA Website

25
Influence of the thermal conductivity anisotropy on the transverse thermoelectric power
1977-01-01

It is demonstrated theoretically that the essential condition for thermoelectric energy conversion is the anisotropy or inhomogeneity of the thermoelectric power. Anisotropy of the thermal conductivity may distort temperature, potential, and current distributions in a thermoelectric medium but cannot of itself act as the source of the thermo-emf.

Energy Citations Database

26
HAFNIUM AS ALLOYING ELEMENT IN COPPER, IRON, AND NICKEL
1960-05-01

The electrical resistance, the thermal EMF, the coefficient of thermal expansion, and the hardness of copper, iron, and nickel with different additions of hafnium were measured and the solubility of hsfnium in copper, iron and nickel was determined. The influence of the addition of hafnium on the recrystallization of copper, ...

Energy Citations Database

27
Oxygen pumping device for control of the air fuel ratio
1989-06-27

This patent describes a method operating a two cell oxygen pumping device to control the air fuel ratio of an engine, the oxygen pumping device having a pumping cell and sensing cell. The method includes the steps of: introducing exhaust gas from the engine to a region between the pumping cell and the sensing cell; applying a pumping current to the pumping cell; sensing an EMF ...

Energy Citations Database

28
Spindle disturbances in human-hamster hybrid (A(L) ) cells induced by the electrical component of the mobile communication frequency range signal.
2010-12-22

The production of spindle disturbances in a human-hamster hybrid (A(L) ) cell line by an electromagnetic field (EMF) with field strength of 90?V/m at a frequency of 900?MHz was studied in greater detail. The experimental setup presented allows investigating whether either the electrical (E) and/or the magnetic (H) field component of EMF can be associated ...

PubMed

29
STUDY OF VOLUME-GRADIENT THERMO-emf AND HEAT CONDUCTIVITY IN GERMANIUM SINGLE CRYSTALS WITH DEFINITE CRYSTALLOGRAPHIC ORIENTATION
1958-08-01

The volume-gradient of thermo-emf developed in the volume heterogeneities of germanium was studied. The temperature processes of the thermoelectrical forces and the isotropic thermal conductivity of germanium monocrystals were determined. (R.V.J.)

Energy Citations Database

30
Acoustoelectric effect in YBa2Cu3O(7-x) superconductor films
1990-11-01

The acoustoelectric effect in the YZ-LiNbO3-YBa2Cu3O(7-x) film structure is investigated. At 300 K, the sign of the acousto-emf is positive, i.e., it corresponds to the hole conductivity. At temperatures less than or approximately equal to Tc = 98 K, the acousto-emf sharply drops to zero (95 K), changes its sign, and increases in ...

NASA Astrophysics Data System (ADS)

31
High-Throughput Omics Technologies: Potential Tools for the Investigation of Influences of EMF on Biological Systems.
2009-04-01

The mode of action of a huge amount of agents on biological systems is still unknown. One example where more questions than answers exist is covered by the term electromagnetic fields (EMF). Use of wireless communication, e.g. mobile phones, has been escalated in the last few years. Due to this fact, a lot of discussions dealt with health consequences of ...

PubMed

32
High-Throughput Omics Technologies: Potential Tools for the Investigation of Influences of EMF on Biological Systems
2009-04-01

The mode of action of a huge amount of agents on biological systems is still unknown. One example where more questions than answers exist is covered by the term electromagnetic fields (EMF). Use of wireless communication, e.g. mobile phones, has been escalated in the last few years. Due to this fact, a lot of discussions dealt with health consequences of ...

PubMed Central

33
PRODUCTION EVALUATION TEST REPORT FOR ...
1960-08-04

... TEST REPORT FOR TRANSDUCER-ABSOLUTE PRESSURE STRAIN ... THERMAL SHOCK, THERMAL STABILITY, VIBRATION, ELECTRICAL ...

DTIC Science & Technology

34
High Accuracy Thermal Expansion Measurement at Cryogenic Temperatures
2003-01-01

A new, interferometer-based system for measuring thermal expansion to an absolute accuracy of 20 ppb

NASA Technical Reports Server (NTRS)

35
High Accuracy Thermal Expansion Measurement At Cryogenic Temperatures
2003-01-01

A new, interferometer based system for measuring thermal expansion to an absolute accuracy of 20 ppb

NASA Technical Reports Server (NTRS)

36
Transport Number Measurements in Silica.
1985-01-01

This paper describes the measurement of transport number by an emf method in all three types of silica, namely, single-crystal quartz, vitreous silica, and amorphous silica thermally grown on single-crystal Si. This method essentially involves measurement...

National Technical Information Service (NTIS)

37
Smorn-1: Thermoelectrically Generated Noise in Sheathed Thermocouples and in Other Low Level Instrumentation Cables.
1974-01-01

Starting from the fact that thermoelectric emfs of thermocouples are generated in the thermal gradients and not at the hot junction, it is shown how thermoelectric heterogeneity in conjunction with natural and forced convection phenomena gives rise to unw...

National Technical Information Service (NTIS)

38
Lead Telluride Alloyed with Indium and Lanthanum.
1974-01-01

Data are presented and discussed on the behavior of lead telluride alloyed with indium and with lanthanum. The data include Hall coefficient, conductance, thermal emf, Hall mobility, microhardness and bending strength. The possibility is demonstrated of d...

National Technical Information Service (NTIS)

39
Lack of Teratogenicity after Combined Exposure of Pregnant Mice to CDMA and WCDMA Radiofrequency Electromagnetic Fields

... subtle, nonthermal, biological effects could also result from prenatal exposure. Numerous studies have shown that RF EMFs can ... it did not induce a thermal effect during exposure and did not produce ......

NBII National Biological Information Infrastructure

40
Fundamental Thermal Management Aspects of the Lithium Metal Sulfide Battery. Final Report.
1985-01-01

Objectives of this project were the determination of heat generation rates and measurement of temperature distributions of lithium-metal sulfide batteries. The experimental methods used were calorimetry, emf and polarization measurements, and direct measu...

National Technical Information Service (NTIS)

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41
Thermal Emf of the Solid Solutions of Indium Phosphide and Gallium Arsenide.
1967-01-01

The dependence of the thermal emf on the composition and temperature has been investigated in InP, GaAs, and 9 InP-GaAs alloys with a composition varying from 0.1 InP-0.9 GaAs to 0.9 InP-0.1 GaAs, and an impurity concentration within limits of 1.7x10 to t...

National Technical Information Service (NTIS)

42
THE USE OF REFRACTORY METALS FOR ULTRA HIGH-TEMPERATURE THERMOCOUPLES
1962-01-01

The properties of refractory metal alloys for use in thermocouples capable of reliable operation at temperatures in the 3000 to 5000 deg F range and higher were investigated. The thermal emf of W-Mo and W-Re alloys relative to pure W is presented. For comparison the thermal emf of unalloyed refractory ...

Energy Citations Database

43
Impact of arginine-modified solid lipid nanoparticles on the membrane charge of human brain-microvascular endothelial cells.
2009-04-11

Electrokinetic and electrostatic properties of human brain-microvascular endothelial cells (HBMECs) with the uptake of L-arginine (Arg)-modified solid lipid nanoparticles (RSLNs) were investigated. The exposure of these HBMECs to radiofrequency electromagnetic field (EMF) was also considered. As compared with the original culture of HBMECs, the uptake of the biomimetic RSLNs ...

PubMed

44
An Electromotive Force Measurement System for Alloy Fuels
2010-11-01

The development of advanced nuclear fuels requires a better understanding of the transmutation and micro-structural evolution of the materials. Alloy fuels have the advantage of high thermal conductivity and improved characteristics in fuel-cladding chemical reaction. However, information on thermodynamic and thermophysical properties is limited. The objective of this project ...

Energy Citations Database

45
An Electromotive Force Measurement System for Alloy Fuels
2010-11-01

The development of advanced nuclear fuels requires a better understanding of the transmutation and micro-structural evolution of the materials. Alloy fuels have the advantage of high thermal conductivity and improved characteristics in fuel-cladding chemical reaction. However, information on thermodynamic and thermophysical properties is limited. The objective of this project ...

DOE Information Bridge

46
Electrical conductivity and thermo-emf in Quasi-binary systems formed by silver chalcogenides
1986-05-01

This paper studies the semiconducting compounds Ag/sub 2/S, Ag/sub 2/Se, and Ag/sub 2/Te and the alloys derived from them at high temperature, including the liquid phase. The authors constructed isotherms at various temperatures for both the solid and liquid phases from the data on temperature dependence and thermal emf. The concentration dependences of ...

Energy Citations Database

47
ELECTRON LEVELS, ELECTROCHEMICAL EFFECTS, AND THERMOELECTRICITY
1962-10-01

The concepts of cavity potential (electrostatic potential in a cavity in a conductor) and Fermi potential (energy per unit charge for an electron at the Fermi level) are defined and used to discuss the work function, contact potentials, Ohm's law, electrode-solution equilibria, and chemical emf's. With the introduction of the entropy transport per ...

Energy Citations Database

48
THE ELECTROMOTIVE FORCES AND ELECTRODE POTENTIALS OF TIN AND IRON IN SYSTEMS WITH TIN CONTAINING FLUX ELECTROLYTES
1958-01-01

Measurements show that in the galvanic cell tin/flux/ Fe, tin is the anode, whereas iron (plate) is the cathode on which tin from the electrolyte is deposited. Hence on close circuiting the cell the electrode potentail difference is at its maximum value only for a fraction of a second, after which, owing to the shift of the cathodic potential to the negative, the emf ...

Energy Citations Database

49
Medical applications of electromagnetic fields
2010-04-01

In this article, we describe two possible applications of low-intensity non-ionizing electromagnetic fields (EMF) for the treatment of malaria and cancer, respectively. In malaria treatment, a low-intensity extremely-low frequency magnetic field can be used to induce vibration of hemozoin, a super-paramagnetic polymer particle, inside malaria parasites. This disturbance could ...

NASA Astrophysics Data System (ADS)

50
Absolute Thermal Fission Yields for exp 239 Pu.
1979-01-01

Absolute exp 239 Pu thermal fission yields are given for the stable and long-lived isotopes of krypton, rubidium, strontium, zirconium, xenon, cesium, barium, cerium, neodymium, and samarium. The principal measurement technique for the fission product iso...

National Technical Information Service (NTIS)

51
Absolute Thermal Fission Yields for exp 235 U.
1978-01-01

Absolute exp 235 U thermal fission yields are given for the stable and long-lived isotopes of krypton, rubidium, strontium, zirconium, molybdenum, ruthenium, xenon, cesium, barium, lanthanum, cerium, neodymium, and samarium. The principal measurement tech...

National Technical Information Service (NTIS)

52
Thermodynamic Aspects of the Problem of Immediate ...
1970-08-21

... of Immediate Conversion of Chemical Energy into Electrical,. ... for emf and efficiency of the ... temperature, corresponding to maximum efficiency or emf ...

DTIC Science & Technology

53
Electromotive forces in the silver-iodine system with solid electrolytes
1987-11-01

The emf of electrochemical cells Ag absolute value AgI I/sub 2/, C were calculated for the temperature range of 298 less than or equal to T less than or equal to 800/sup 0/K from data for the heats of formation of AgI and for the heat capacities of Ag, I/sub 2/, and AgI. The temperature dependence of emf was found to change sign during ...

Energy Citations Database

54
SEMICONDUCTOR THERMOELEMENTS (SELECTED ...
1962-01-18

... as a func tion of effective mass and absolute ... POWER SUPPLIES, SOLAR CELLS, SOLID STATE PHYSICS, SOLIDS, THEORY, THERMAL ...

DTIC Science & Technology

55
PRODUCTION EVALUATION TEST REPORT FOR ...
1960-05-17

... the production evaluation of an absolute-pressure transducer ... MECHANICS), ERRORS, PRESSURIZATION, THERMAL STABILITY, HIGH ALTITUDE ...

DTIC Science & Technology

56
PRODUCTION EVALUATION TEST REPORT FOR ...
1960-04-20

... the production evaluation testing of absolute-pressure transducers ... RESONANT FREQUENCY, HUMIDITY, HIGH ALTITUDE, THERMAL STABILITY. ...

DTIC Science & Technology

57
LUNAR THERMAL EMISSION MEASUREMENTS AND ...
1964-04-01

... may then be used to make absolute measurements of other radio sources. ... and 3100 megacycles which was found to be constant at 230 and 223 K ...

DTIC Science & Technology

58
Collisions of Ions in Gases.
1982-03-31

... of the absolute total cross-sections for the ... studies, and a new crossed ion-supersonic ... molecule beams apparatus, designed to remove the thermal ...

DTIC Science & Technology

59
Capabilities of the Generic Systems Assessment Model
1992-07-01

... " Thermal (Long Wave) Radiation (Proportional to the difference between the fourth power of the absolute temperatures of the two bodies), ...

DTIC Science & Technology

60
Absolute and Differential Dilatometry for Measurement of ...
1962-06-06

... Pagination or Media Count : 20. Abstract : The shrinkage of resin and thermal expansion during the curing of epoxy (epon 826) were measured. ...

DTIC Science & Technology

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61
Thermal electromotive force of cermet films based on borides of rare-earth metals
1988-04-01

The thermal emf and electrical conductivity of cermet films comprised of conducting solid solutions of europium and praseodymium borides and a dielectric glass crystalline binder were studied using a combination of temperature and voltage measurements. The dependence of these properties on temperature and the Seebeck coefficient were also determined. ...

Energy Citations Database

62
Effect of Immobilization and Concurrent Exposure to a Pulse-Modulated Microwave Field on Core Body Temperature, Plasma ...

... However, much less information is available concerning the thermal effects of partial-body RF-field exposure and exposure ... Lars Malmgren, Bertil R. R. Persson. (2007) Non-thermal effects of EMF upon t...

NBII National Biological Information Infrastructure

63
ABSOLUTE NEUTRON DENSITY DETERMINATIONS USING COBALT
1952-09-16

This report describes how cobalt wire may be used for the absolute integration of thermal neutron density over any period of time up to several years. Thermal neutron densities in B.E.P.O. have been measured by irradiating together cobalt wires and sodium carbonate. The absolute values of the ...

Energy Citations Database

64
The Thermal Conductivity of AISI 304L Stainless Steel.

... A compilation and critical analysis of the thermal conductivity (lambda) of AISI ... the electrical resistivity, and the absolute Seebeck coefficient of 304L ...

DTIC Science & Technology

65
John F. Kennedy Space Center's Thermal Insulation Test Apparatuses

of heat flux through insulation test article. " Provides flexibility of ... ment of the absolute thermal conductivity of a material system. ...

NASA Website

66
Stability of a Cable Nicrosil-Nisil Thermocouple under Thermal Cycling
2003-09-01

Experimental data on the stability of cable Nicrosil-Nisil thermocouples (type N) under step-by-step thermal cycling in the temperature range 20 to 1100�C and also under long-term heating in air at the temperature 1085 +/- 10 �C are presented. The analysis of the influence of thermal cycling on thermal EMF ...

NASA Astrophysics Data System (ADS)

67
Spindle disturbances in human-hamster hybrid (A(L)) cells induced by the electrical component of the mobile communication frequency range signal.
2010-12-22

The production of spindle disturbances in a human-hamster hybrid (A(L)) cell line by an electromagnetic field (EMF) with field strength of 90?V/m at a frequency of 900?MHz was studied in greater detail. The experimental setup presented allows investigating whether either the electrical (E) and/or the magnetic (H) field component of EMF can be associated ...

PubMed

68
Bats avoid radar installations: could electromagnetic fields deter bats from colliding with wind turbines?
2007-03-14

Large numbers of bats are killed by collisions with wind turbines, and there is at present no direct method of reducing or preventing this mortality. We therefore determine whether the electromagnetic radiation associated with radar installations can elicit an aversive behavioural response in foraging bats. Four civil air traffic control (ATC) radar stations, three military ATC radars and three ...

PubMed

69
Bats Avoid Radar Installations: Could Electromagnetic Fields Deter Bats from Colliding with Wind Turbines?
2007-03-14

Large numbers of bats are killed by collisions with wind turbines, and there is at present no direct method of reducing or preventing this mortality. We therefore determine whether the electromagnetic radiation associated with radar installations can elicit an aversive behavioural response in foraging bats. Four civil air traffic control (ATC) radar stations, three military ATC radars and three ...

PubMed Central

70
[Effect of doxorubicine and heterogenous electromagnetic and thermal fields on the nonlinear dynamics of carcinoma Guerin development].
2010-07-01

While local hyperthermia application the intratumoral blood flow is enhancing, leading to oxygenation and vascular permeability for antitumoral medicines. The work objective was to investigate the dependence of the development kinetics in carcinoma Gereni (CG) from combined action of doxorubicin (DR) and the kind of thermal impact, a contact one--due to a contact delivery of ...

PubMed

71
Seebeck measurements of rf sputtered nickel-chromium films
1977-05-01

Thin films of nickel-chromium alloys (10% chromium) were produced by the radio-frequency (rf) sputtering technique. The Seebeck coefficient of these films was measured with a constant 10 �C differential up to 360 �C versus bulk Alumel wires. At higher sputtering power (400 w) with a water-cooled anode, the seebeck coefficient approached the bulk response to within 2-1/2%. At lower sputtering ...

NASA Astrophysics Data System (ADS)

72
Highly stable, sheathed, beryllia insulated, tungsten--rhenium alloy thermocouples
1975-01-01

The fabrication and performance testing of 1.6 mm diameter tantalum sheathed, beryllium oxide (BeO) insulated, W-3 percent Re/W-25 percent Re thermocouples are reported. Fully assembled thermocouples constructed from aged thermoelements, specially heat treated, sintered BeO insulators, and specially cleaned and etched tantalum sheaths were tested for 2059 h at 1800$sup 0$C in a helium ...

Energy Citations Database

73
Anticancer effects on leiomyosarcoma-bearing Wistar rats after electromagnetic radiation of resonant radiofrequencies.

In the present study, the effects of a resonant low intensity static electromagnetic field (EMF), causing no thermal effects, on Wistar rats have been investigated. Sarcoma cell lines were isolated from leiomyosarcoma tumors induced in Wistar rats by the subcutaneous (s.c) injection of 3,4-benzopyrene. Furthermore, smooth muscle cells (SMC) were isolated ...

PubMed

74
Absolute induction angiometer.
1980-01-01

The objective of this method is the continuous recording of vascular diameters and their measurement in absolute terms. This can be accomplished by percutaneously introduced intravascular sensors (IVS) or surgically implanted perivascular sensors (PVS). Both types of sensor are made of bifilar insulated wires forming a bifilar loop. One wire of the bifilar loop acts as a ...

PubMed

75
[Dependence of the non-thermal radiofrequency electromagnetic field bioeffects on the typological features of electroencephalogram in humans].

In researches with participation of volunteers bioeffects of short-term non-thermal radiofrequency electromagnetic field (RF EMF) exposure were studied. The basic form of brain's reaction was the amplification of energy in a-range in electroencephalogram (EEG) spectra. Dependence of these changes, not only due to the changes of the exposure parameters, but ...

PubMed

76
Interactive Demonstration: EMF in Inductors
2009-08-01

Electromotive Force (EMF) and its sidekick, back EMF, are interesting electromagnetic phenomena that aren't really forces at all. This tutorial describes both EMF and a related phenomenon, back EMF (or counter EMF). EMF explains the sudden flashing of the light bulb in the ...

NSDL National Science Digital Library

77
EMF genes regulate Arabidopsis inflorescence development.
1997-11-01

Mutations in EMBRYONIC FLOWER (EMF) genes EMF1 and EMF2 abolish rosette development, and the mutants produce either a much reduced inflorescence or a transformed flower. These mutant characteristics suggest a repressive effect of EMF activities on reproductive development. To investigate the role of ...

PubMed

78
Thermoelectric effects in organic conductors in a strong magnetic field
2007-07-15

The linear response of the electron system of a layered conductor to the temperature gradient in this system in a strong magnetic field is investigated theoretically. Thermoelectric emf is studied as a function of the magnitude and orientation of a strong external magnetic field; the experimental investigation of this function, combined with the study of the electric and ...

Energy Citations Database

79
Temperature measurement error due to the effects of time varying magnetic fields on thermocouples with ferromagnetic thermoelements
1977-08-01

Thermocouples with ferromagnetic thermoelements (iron, Alumel, Nisil) are used extensively in industry. We have observed the generation of voltage spikes within ferromagnetic wires when the wires are placed in an alternating magnetic field. This effect has implications for thermocouple thermometry, where it was first observed. For example, the voltage generated by this phenomenon will contaminate ...

Energy Citations Database

80
THERMOCOUPLE RESEARCH REPORT FOR THE PERIOD NOVEMBER 1, 1956 TO OCTOBER 31, 1957. Progress Report No. 1
1958-03-01

The general characteristics of thermocouples are reviewed, and particular reference is made to available information on the chromel-alumel type alloys. A description of the experimental equipment constructed and operated for thermocouple calibration, time-at-temperature studies of changes in thermal emf, and heat treating of wires is presented. ...

Energy Citations Database

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81
THE PHYSICAL PROPERTIES OF NIOBIUM, TANTALUM, MOLYBDENUM, AND TUNGSTEN
1960-04-01

The physical properties of niobium, tantalum, molybdenum, and tungsten are reviewed in relation to the properties of the other elements of groups IVa, Va, and VIa of the periodic table. Zone-refined specimens of niobium and tantalum were prepared, and resistivity, magnetic susceptibility, and thermal emf measurements were made at 10 to 295 deg K. ...

Energy Citations Database

82
Study of Electron Hopping in Eu3S4 by Combined Electrical Conductivity and Thermal Emf Measurements.
1969-01-01

Combined electrical conductivity and thermoelectric power measurements have been made on Eu3S4 at temperatures from 100 to 1000K. These measurements show that the charge carrier concentration in this temperature range is essentially constant. The activati...

National Technical Information Service (NTIS)

83
Journal of Research of the National Bureau of Standards: A, Physics and Chemistry, Volume 76A, Number 4, July-August 1972.
1972-01-01

Contents: The emf-temperature coefficient of 'acid' standard cells of the saturated cadmium sulfate type from 15 to 40 C; Pulse radiolysis of neopentane in the gas phase; Anatomy and thermal history of laser self-focusing damage tracks in glass; Normal em...

National Technical Information Service (NTIS)

84
ELEC 4700 Assignment #2 Question 1 (Kasop 4.2) Molecular Orbitals and Atomic Orbitals

of gold and aluminum. One junction is at 100 C and the other is at 0 C. A voltmeter (with a very large.3 to estimate the emf registered by the voltmeter and identify the positive end. Question 3 (Kasop 4.24) Thermal

E-print Network

85
Chemical Engineering Division Physical Inorganic Chemistry Annual Report, July 1974--June 1975.
1975-01-01

Thermal conductivity measurements of methanol vapor were made in a hot-wire cell at temperatures ranging from 306 to 345 exp 0 K and pressures from 80 to 760 torr. Emf measurements of the activities of Li in Li-Mg alloys indicate small negative deviations...

National Technical Information Service (NTIS)

86
COMUX: a combinatorial multiplexer for diagnostic scanning of multiterminal thermocouple and microvolt-level circuits
1979-08-01

The combinatorial multiplexer (COMUX) is a group scanner combined with a matrix switch that connects various combinations of signal lines, shields, and reference points to a multifunction meter for measurement. All signal lines are switched with low-thermal electromotive force (emf) relays to allow scanning of microvolt level signals. The COMUX may be ...

Energy Citations Database

87
AN AUTOMATIC RECORDING BALANCE
1958-01-01

A description is presented of a balance with automatic recording of the changes in weight of a specimen in the process of its thermal treatment. The balance is designed according to the chain compensation principle using photoelements and a reversing motor. The transition from weight to emf changes recorded by an electronic potentiometer is ...

Energy Citations Database

88
SEEBECK COEFFICIENT OF YTTRIUM FROM 0 TO 1000 C
1959-08-01

>The specimen was swaged from material with an yttrium analysis of 99.7% to a rod 1/16 in. in diameter and 16 in. long. The cold junction of the Pt-Pt 10% Rh couple and the Y-rod were immersed in a bath to maintain a constant temperature. The hot junction was maintained in a flow of argon purified by passing over heated zirconium turnings. The hot junction equilibrium was checked ...

Energy Citations Database

89
CALIBRATION OF NOBLE METAL THERMO-COUPLES AT THE MELTING POINT OF PALLADIUM
1960-12-01

The calibration error of platinum-rhodium thermocouples above 1200 deg C can be decreased by an additional determination of the thermal emf of the working junction at the melting point of palladium (1552 deg C plus or minus 2 deg C). A piece of pure palladium wire (99.95% Pd) with a diameter of 0.4 mm and a length of 15 to 20 mm was wrapped ...

Energy Citations Database

90
An experimental investigation of thermocouple response times in static gas environments
1975-10-01

The output EMF of a fine-wire thermocouple element (chromel-alumel, 0.025 mm dia) has been recorded in detail after rapid electrical heating to 25 K above ambient in various gaseous environments. The EMF always decayed exponentially, thus confirming that thermocouple response in such environments may be characterized by a time constant (T). Time constants ...

NASA Astrophysics Data System (ADS)

91
Absolute Isotopic Abundance Ratios and Atomic Weight of a Reference Sample of Strontium.
1981-01-01

Absolute values have been obtained for the isotopic abundance ratios of a reference sample of strontium using solid sample thermal ionization mass spectrometry. Samples of independently known isotopic composition prepared from chemically pure and nearly i...

National Technical Information Service (NTIS)

92
Absolute Isotopic Abundance Ratios and Atomic Weight of a Reference Sample of Nickel.
1989-01-01

Absolute values have been obtained for the isotopic abundance ratios of a reference sample of nickel (Standard Reference Material 986), using thermal ionization mass spectrometry. Samples of known isotopic composition, prepared from nearly isotopically pu...

National Technical Information Service (NTIS)

93
Absolute Isotopic Abundance Ratio and Atomic Weight of a Reference Sample of Gallium.
1986-01-01

An absolute value has been obtained for the isotopic abundance ratio of a reference sample of gallium (Standard Reference Material 994), using thermal ionization mass spectrometry. Samples of known isotopic composition, prepared from nearly isotopically p...

National Technical Information Service (NTIS)

94
Image processing of thermal infrared images
1989-09-01

Techniques for digital processing of thermal infrared images are addressed. In particular, techniques that are uniquely required for thermal imagery are emphasized. This includes a treatment of how to implement absolute temperature calibration algorithms, methods for registering and combining multiple thermal ...

Energy Citations Database

95
Thermal Conductivity of Saturated Liquid Toluene by Use of Anodized Tantalum Hot Wires at High Temperatures.
2000-01-01

Absolute measurements of the thermal conductivity of a distilled and dried sample of toluene near saturation are reported. The transient hot-wire technique with an anodized tantalum hot wire was used. The thermal conductivities were measured at temperatur...

National Technical Information Service (NTIS)

96
Lattice Thermal Conductivity of Minerals at High Temperatures.
1973-01-01

Simple perturbation theory predicts that the lattice thermal conductivity should be inversely proportional to the absolute temperature. It is shown that the lattice thermal conductivity of minerals should not depart markedly from that variation, even when...

National Technical Information Service (NTIS)

97
Utilization of Absolute Radiometers in USSR National Standards of Irradiance Units
1991-01-01

A high-precision absolute radiometer with a thermally stabilized cavity as the receiving element was designed in 1984 at the All-Union Research Institute for Optical and Physical Measurements (VNIIOFI) and used to derive the USSR National Special Standard of the solar irradiance unit. Since that time, the radiometer has been developed further. The ...

NASA Astrophysics Data System (ADS)

98
Lymphoma development of simultaneously combined exposure to two radiofrequency signals in AKR/J mice.
2011-03-23

There are public concerns regarding possible carcinogenic or cancer-promoting effects of radiofrequency electromagnetic fields (RF-EMFs) because of the extensive use of wireless mobile phones and other telecommunication devices in daily life. However, so far it is unclear if non-thermal exposure of single EMF exposure in animal studies ...

PubMed

99
DNA damage in frog erythrocytes after in vitro exposure to a high peak-power pulsed electromagnetic field.
2004-03-14

Till the present time, the genotoxic effects of high peak-power pulsed electromagnetic fields (HPPP EMF) on cultured cells have not been studied. We investigated possible genotoxic effects of HPPP EMF (8.8 GHz, 180 ns pulse width, peak power 65 kW, repetition rate 50 Hz) on erythrocytes of the frog Xenopus laevis. We used the alkaline comet assay, which is ...

PubMed

100
Absolute instrumental neutron activation analysis at Lawrence Livermore Laboratory
1977-12-21

The Environmental Science Division at Lawrence Livermore Laboratory has in use a system of absolute Instrumental Neutron Activation Analysis (INAA). Basically, absolute INAA is dependent upon the absolute measurement of the disintegration rates of the nuclides produced by neutron capture. From such disintegration rate data, the amount ...

Energy Citations Database

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101
Mutagenic Potential of Direct Current Electric Fields.
1997-01-01

Electromagnetic Fields (EMF) such as those produced by power lines have become a growing source of concern to the general public. Many epidemiological studies have linked EMF to carcinogenesis implying an underlying genetic phenomenon mediated by EMF. EMF...

National Technical Information Service (NTIS)

102
Sensitization of the Photoconductivity and Photo emf of Heavy ...
1973-09-04

... Accession Number : AD0786636. Title : Sensitization of the Photoconductivity and Photo emf of Heavy Metal Azides Colored by Organic Dyes,. ...

DTIC Science & Technology

103
THERMOELECTRIC MATERIALS. Bimonthly Progress Report for February 1, 1959 to April 1, 1959. (Report No. 2)
1959-04-20

Investigation of the thermoelectric properties of phthalocyanines was continued. Resistance-temperature relations for a pellet of this material are shown graphically and the energy, E = 1.386 ev, was calculated from the slope. Data are also given on the thermal electromotive force of this pellet at 220 deg C. Resistance measurements of Cu/sub 2/S at 400 to 1200 deg C ...

Energy Citations Database

104
Geologic application of thermal-inertia mapping from satellite. Progress report 1 mar-31 may 78
1978-06-01

The author has identified the following significant results. A theoretical evaluation of the proportional and linear relationship between absolute and relative thermal inertia was performed, and a potentially more accurate expression for absolute thermal inertia mapping was proposed.

Energy Citations Database

105
Thermal properties measurements in biodiesel oils using photothermal techniques
2005-08-01

In this Letter, thermal lens and open cell photoacoustic techniques are used to measure the thermal properties of biodiesel oils. The absolute values of the thermal effusivity, thermal diffusivity, thermal conductivity and the temperature coefficient of the refractive index ...

NASA Astrophysics Data System (ADS)

106
The Landsat Program - History - The Landsat Program - NASA

a panchromatic band with 15m spatial resolution; " on-board, full aperture, 5% absolute radiometric calibration; " a thermal IR channel with 60m spatial ...

NASA Website

107
Pale Blue Dot II: Abstracts: Origins Program

The third type of emission is the familiar thermal or blackbody radiation, i.e., emission emitted by any body with a temperature above absolute zero. ...

NASA Website

108
ABSOLUTE NEUTRON FLUX OF THE AGN-201 REACTOR.

... total and thermal neutron flux of the US Naval Postgraduate School's AGN-201 reactor was determined by neutron activation of thin gold foils. ...

DTIC Science & Technology

109
Thermoregulation by rhesus monkeys at different absolute humidities.
2004-06-26

The effect of relative humidity on thermoregulation has been well examined. Because the same relative humidity represents very different absolute humidities at different ambient temperatures, the present study was designed to examine the interaction of temperature and absolute humidity on the thermal balance of rhesus monkeys, Macaca ...

PubMed

110
Situation Report on the Effects of the Cooling of Thermal Power Plants on Waters.
1981-01-01

All new thermal power plants in the suburbian area of the Rhine and Aare River must be equipped with cooling towers. Mixed cooling is permitted, provided that it is absolutely warranted that the limiting values laid down in the regulation are not trespass...

National Technical Information Service (NTIS)

111
Normoblastemia after Thermal Injury.
1976-01-01

The peripheral blood smears of 214 thermally injured patients studied during a thirty month period revealed a 20 percent incidence of normoblastemia (51 patients). Nucleated red blood cells were most common in patients with the largest burns. The absolute...

National Technical Information Service (NTIS)

112
Investigation of the Thermal Conductivity of Ice.
1970-01-01

Measurement of the thermal conductivity of ice I (the normal phase at atmospheric pressure) over the temperature range 4 to 273 K has been attempted. First the linear absolute method was employed in which an adiabatically shielded copper block (1 kg) prov...

National Technical Information Service (NTIS)

113
Granulocyte Kinetics after Thermal Injury.
1972-01-01

A 30% third-degree burn in rats was used to study granulocyte kinetics after thermal injury. Early postburn leukocytosis, a result of granulocyte demargination and early bone marrow release, was followed by an absolute granulocytopenia, despite elevated c...

National Technical Information Service (NTIS)

114
Electrical Resistivity and Thermal Conductivity of Nine Selected AISI Stainless Steels.
1977-01-01

This technical report reviews the available experimental data and information on the electrical resistivity and thermal conductivity of nine selected AISI stainless steels and presents the recommended values from near absolute zero (1 K) to above the melt...

National Technical Information Service (NTIS)

115
An ionisation chamber for measuring gamma exposure rates in mixed radiation fields
1984-12-01

The development of an ionisation chamber for measuring gamma exposure rates in graphite thermal reactors is described. Through careful design, the absolute thermal neutron sensitivity has been minimized.

NASA Astrophysics Data System (ADS)

116
1990 NIST Scales of Thermal Radiometry.
1990-01-01

Following an absolute NIST measurement of the freezing temperature of gold and the adoption of the International Temperature Scale of 1990 (ITS-90), NIST has adopted new measurement scales for the calibration services based on thermal radiometry. In the p...

National Technical Information Service (NTIS)

117
Modeling of the Electromagnetic forming of Sheet Metals: State-of-the-Art and Future Needs
2003-12-10

In recent years there has been interest in better understanding the electromagnetic forming (EMF) process with a goal of expanding its use beyond the small and axisymmetric shapes that dominate the industry. The main driver for this interest has been the auto industry desire to increase the use of aluminum in automobiles. In traditional automotive stamping processes, aluminum ...

Energy Citations Database

118
Circular photogalvanic effect observed in silver-palladium film resistors
2011-06-01

The surface circular photogalvanic effect (CPGE) at a laser wavelength of 1064 nm was observed for the first time in silver-palladium resistors fabricated by a thick-film technology. The CPGE response was detected using the electrodes oriented parallel to the radiation incidence plane, for the laser beam obliquely incident onto the sample surface. The coefficient of the pulsed laser radiation ...

NASA Astrophysics Data System (ADS)

119
Calculation of the structure factor for a Pd/sub 1-c/Si/sub c/ melt in the long-wavelength limit from experimental data on the EMF of alloy formation
1986-06-01

The authors investigate the x-ray diffraction long-wavelength limit and the concentration dependence of the structure factors - Bhatia-Thornton and Faber-Ziman among them - for a liquid palladium-silicon alloy based on the relationship between the structure factors and the excess Gibbs potential which takes into account the partial thermodynamic Gibbs potential, the electromotive force for alloy ...

Energy Citations Database

120
FAST BREEDER REACTOR THERMOCOUPLE DEVELOPMENT.
1969-10-31

Studies of very high-temperature thermocouple characteristics for instrumentation and electrical components used in fast breeder reactors showed that the thermoelectric emf produced along BeO, HfO{sub 2}, or ThO{sub 2} insulators can affect the output of the thermoelements. Bare-wire thermocouples are influenced by environment. Radiation effects on W versus W - Re ...

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