scholarly journals IX. On a new method for obtaining a constant temperature

1892 ◽  
Vol 33 (200) ◽  
pp. 89-93
Author(s):  
Henry Crew
Keyword(s):  
Constant Temperature ◽  
New Method

Studies on nucleation from solution of some soluble inorganic salts

1970 ◽  
Vol 48 (18) ◽  
pp. 2896-2899 ◽  
Author(s):  
J. A. Velazquez ◽  
O. E. Hileman Jr
Keyword(s):  
Constant Temperature ◽  
Selective Extraction ◽  
New Method ◽  
Crystal Nucleation ◽  
Inorganic Salts ◽  
Nucleation Parameters ◽  
Solutions Of Electrolytes

Vonnegut's droplet technique in combination with selective extraction of solvent is reported as a new method for the study of nucleation from solution of soluble substances at constant temperature. The method is applied to studies on NH4Cl, NH4NO3, NH4SCN, (NH4)2Cr2O7, and K2Cr2O7,. The results are reported and various nucleation parameters are calculated and discussed in terms of the limitations of the Becker–Doring model of nucleation when it is applied to crystal nucleation from solutions of electrolytes.

A new method for analysis of constant-temperature thermal response tests

Geothermics ◽  
2019 ◽  
Vol 78 ◽  
pp. 1-8 ◽  
Author(s):  
Murat Aydin ◽  
Mustafa Onur ◽  
Altug Sisman
Keyword(s):  
Constant Temperature ◽  
Thermal Response ◽  
New Method

Effect of Temperature on Activity of Salvelinus fontinalis

1942 ◽  
Vol 5c (5) ◽  
pp. 461-470 ◽  
Author(s):  
Paul F. Elson
Keyword(s):  
Constant Temperature ◽  
Laboratory Experiments ◽  
Salvelinus Fontinalis ◽  
New Method ◽  
Effect Of Temperature ◽  
Field Observations ◽  
Maximal Amount ◽  
Sigmoid Curve

The distances moved in response to varied stimuli are measured, at constant temperature, by a new method. A sigmoid curve shows the relation between strength of stimulus and distance moved. For any strength of stimulus maximal amount of movement occurs at about 10 °C. Laboratory experiments and field observations reveal response temperatures (more active behaviour of the fish) at 15 and 20°, which may somewhat increase the distance moved at and above these temperatures.

MEASUREMENT OF THE AMOUNT OF HEAT USING A DIATHERMIC COMBUSTION CALORIMETER WITHOUT PREHEATING OF THE CALORIMETER VESSEL IN A THERMOSTAT

2019 ◽  
Vol 85 (4) ◽  
pp. 40-41
Author(s):  
Lev B. Mashkinov
Keyword(s):  
Heat Release ◽  
Constant Temperature ◽  
Room Temperature ◽  
New Method ◽  
Device Design ◽  
Measuring Cell ◽  
Temperature Controller ◽  
Combustion Calorimeter

A new method for measuring the amount of heat on the diathermic combustion calorimeter is presented. The method is based on filling the calorimeter vessel at room temperature and placing of the vessel in the measuring cell of the calorimeter (calorimeter is preliminary brought to a constant temperature) without preheating of the vessel in an isolated thermostat. Placing of a "cold" vessel into the cell and subsequent release of the reactive heat virtually balance each other, thus reducing the load on the temperature controller of the calorimeter. Note that not only pulse, but also the heat release of unrestricted continuance is recorded. Elimination of the preheating thermostat obviously simplifies the device design. The method has been patented.

Crimping analysis of textured polyester multifilament yarn

2019 ◽  
Vol 70 (05) ◽  
pp. 463-469
Author(s):  
JOVANA STEPANOVIĆ ◽  
TATJANA ŠARAC ◽  
NATAŠA RADMANOVAC ◽  
DUŠAN TRAJKOVIĆ ◽  
JOVAN STEPANOVIĆ
Keyword(s):  
Constant Temperature ◽  
Flow Analysis ◽  
New Method ◽  
Peripheral Speed ◽  
Extension Degree ◽  
Multifilament Yarn ◽  
Multifilament Yarns

The properties of textured POY PES multifilament yarns are conditioned by texturing temperature, texturing speed, stretching degree and by the ratio of disc peripheral speed and yarn speed. In the paper attention is focused on crimping of yarns. New method for defining crimping limits is proposed. The method is based on the flow analysis of the force-elongation function. POY multifilament polyester yarns, having the fineness of 167f36x1 dtex were analyzed. The texturing of PES multifilament yarns was performed using different first heater temperatures (350 oC, 400 oC, 450 oC) and maintaining the constant temperature of the second heater (180 oC), then with different texturing speeds (500 m/min, 600 m/min, 700 m/min, 900 m/min, 1000 m/min, 1100 m/min), using different ratio of the disc circumferential speed to yarn speed (2.15, 2.20, 2.25) and at the extension degree of 1.665.

scholarly journals A new method for decreasing the rate of nuclei expelled from post-operative pearl oysters Pinctada fucata in tanks at constant temperature

2011 ◽  
Vol 77 (3) ◽  
pp. 381-386
Author(s):  
TAKASHI ATSUMI ◽  
TAKASHI ISHIKAWA ◽  
NARIAKI INOUE ◽  
RYO ISHIBASHI ◽  
HIDEO AOKI ◽  
...  
Keyword(s):  
Constant Temperature ◽  
Pinctada Fucata ◽  
New Method ◽  
Pearl Oysters

scholarly journals The effect of pH on the sorption of copper ions by alginates

2008 ◽  
Vol 10 (1) ◽  
pp. 28-30 ◽  
Author(s):  
Sylwia Kwiatkowska-Marks ◽  
Justyna Miłek ◽  
Marek Wójcik
Keyword(s):  
Sodium Alginate ◽  
Sorption Capacity ◽  
Constant Temperature ◽  
Copper Ions ◽  
Langmuir Equation ◽  
Experimental Results ◽  
New Method ◽  
Effect Of Ph ◽  
Ph Values

The effect of pH on the sorption of copper ions by alginates The effect of pH on copper ions sorption by alginates has been investigated. The granules of the sorbent obtained from sodium alginate (type DMF, manufactured by KELCO) have been applied. By using a new method of gelation a biosorbent containing from 11.3 to 20.3% mas. of alginate has been produced. Investigations have been carried out at a constant temperature of 25°C and the pH values ranging from 3 to 5. The obtained experimental results have been described by the Langmuir equation. It has been found that with the increasing pH of the solution the maximum biosorbent sorption capacity increased.

scholarly journals XVII. On the vapour densities of potassium and sodium

1879 ◽  
Vol 29 (196-199) ◽  
pp. 206-209
Keyword(s):  
Constant Temperature ◽  
Boiling Point ◽  
Alkali Metals ◽  
New Method ◽  
Vapour Density ◽  
Chemical Characters ◽  
Ingenious Method ◽  
Short Time ◽  
Work Done

The ingenious method of determining the vapour densities of volatile bodies invented by Professor Meyer suggested the revision of work done by one of us in connexion with Professor Dittmar, on the vapour density of potassium. The new method possesses several advantages over that formerly employed, and seemed to be especially fitted to simplify the difficulties of working with substances having the chemical characters of the alkali metals. The fact that a constant temperature need not be maintained unless for a short time, and that all absolute determinations of temperature are unnecessary during the course of the experiments, renders Professor Meyer’s system the simplest when the boiling point of the substance is above a white heat.

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