Effect of Temperature Rate Term while Predicting Thermal Ratcheting of a Thin Cylinder due to Cyclic Temperature Variation

2015 ◽  
Vol 68 (S2) ◽  
pp. 161-169 ◽  
Author(s):  
A. Mishra ◽  
P. Chellapandi ◽  
R. Suresh Kumar ◽  
G. Sasikala
Keyword(s):  
Temperature Variation ◽  
Effect Of Temperature ◽  
Thin Cylinder ◽  
Thermal Ratcheting ◽  
Cyclic Temperature ◽  
Temperature Rate

THE EFFECT OF TEMPERATURE VARIATION ON RESISTANCE VALUE IN ELECTRICITY CIRCUITS

2020 ◽  
Vol 4 (1) ◽  
pp. 27
Author(s):  
Ridwan Yusuf Lubis ◽  
Lailatul Husna Lubis ◽  
Miftahul Husnah
Keyword(s):  
Temperature Variation ◽  
Effect Of Temperature ◽  
Resistance Value

Exploring secondary interactions and the role of temperature in moisture-contaminated polymer networks through molecular simulations

Soft Matter ◽  
2021 ◽  
Vol 17 (10) ◽  
pp. 2942-2956
Author(s):  
Rishabh D. Guha ◽  
Ogheneovo Idolor ◽  
Katherine Berkowitz ◽  
Melissa Pasquinelli ◽  
Landon R. Grace
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Temperature Variation ◽  
Polymer Networks ◽  
Molecular Simulations ◽  
Effect Of Temperature ◽  
Secondary Interactions ◽  
Dynamics Simulations ◽  
Secondary Bonding

We investigated the effect of temperature variation on the secondary bonding interactions between absorbed moisture and epoxies with different morphologies using molecular dynamics simulations.

Microstructure evolution by neutron irradiation during cyclic temperature variation

1994 ◽  
Vol 212-215 ◽  
pp. 241-245 ◽  
Author(s):  
M. Kiritani ◽  
T. Yoshiie ◽  
M. Iseki ◽  
S. Kojima ◽  
K. Hamada ◽  
...  
Keyword(s):  
Temperature Variation ◽  
Neutron Irradiation ◽  
Microstructure Evolution ◽  
Cyclic Temperature

scholarly journals Persistent Effect of Temperature on GDP Identified from Lower Frequency Temperature Variability

2021 ◽  
Author(s):  
Bernardo Bastien-Olvera ◽  
Frances Moore
Keyword(s):  
Climate Change ◽  
Temperature Variation ◽  
Cost Benefit ◽  
Temperature Variability ◽  
Effect Of Temperature ◽  
Economic Sectors ◽  
Human Welfare ◽  
Economic Productivity ◽  
Economic Output ◽  
Frequency Temperature

Abstract It is well established that temperature variability affects a range of outcomes relevant to human welfare, including health (Gasparrini et al., 2017) emotion and mood (Baylis et al., 2018), and productivity across a number of economic sectors (Carleton & Hsiang, 2016; Dell et al., 2014). However, a critical and still unresolved empirical question is whether temperature variation has a long-lasting effect on economic productivity and, therefore, whether damages compound over time in response to long-lived changes in temperature expected with climate change. Several studies have identified a relationship between temperature and GDP (Burke et al., 2015; Dell et al., 2012; Kalkuhl & Wenz, 2020), but empirical evidence as to the persistence of these effects is still weak. This paper presents a novel approach to isolate the persistent component of temperature effects on output using lower frequency temperature variation. Using three different datasets we find that longer temperature anomalies affect GDP growth as much or more than short-lived anomalies, implying persistent and therefore cumulative effects of climate change on economic output. The population-weighted global effect of -0.8 pp per degree is sufficient to reduce per-capita income in 2100 by 44% under RCP6, approximately an order of magnitude larger than damages currently represented in cost-benefit integrated assessment models (Diaz & Moore, 2017).

Effect of Temperature Variation on FT-IR Spectrometer Stability

1997 ◽  
Vol 51 (1) ◽  
pp. 43-50 ◽  
Author(s):  
D. M. MacBride ◽  
C. G. Malone ◽  
J. P. Hebb ◽  
E. G. Cravalho
Keyword(s):  
Temperature Variation ◽  
Thermal Instability ◽  
Effect Of Temperature ◽  
Optical Bench ◽  
Infrared Source ◽  
Ft Ir ◽  
Purge Gas ◽  
Response Variation ◽  
Spectrometer Response ◽  
Gas Supply

The effect of temperature variation on Fourier transform infrared (FT-IR) spectrometer response stability is investigated for wavenumbers from 10,000 to 100 cm−1 with the use of a temperature measurement and data acquisition system on the spectrometer optical bench. Spectrometer response instability is correlated with local temperature variation for two FT-IR spectrometer systems, with the use of various infrared source, beamsplitter, and detector combinations. The data obtained show that detector responsivity variation and beamsplitter misalignment associated with thermal instability of the spectrometer optical bench are responsible for the observed response instability. Response variation of up to 4% per °C temperature variation is observed. Variations of the laboratory environment and spectrometer purge gas supply temperatures are shown to affect spectrometer thermal stability directly.

scholarly journals Study on Designing Sulfur Containing Bifunctional Building Block with Improved Refractive Index

2009 ◽  
Vol 6 (2) ◽  
pp. 399-411 ◽  
Author(s):  
G. S. Jha ◽  
P. Chhabra ◽  
G. Suri ◽  
M. Tyagi ◽  
P. Arora ◽  
...  
Keyword(s):  
Refractive Index ◽  
Reaction Mechanism ◽  
Reaction Time ◽  
Acid Number ◽  
Effect Of Temperature ◽  
Control Parameters ◽  
Reaction Parameters ◽  
Factors Affecting ◽  
Temperature Rate ◽  
Sulfur Containing

Sulfur and chlorine containing bifunctional diols with C-S bond has been prepared starting from chloroepoxy alkane and thioalcohol. The studies of FTIR, TLC, HPLC and NMR have been used to understand the reaction mechanism, as well as for optimization of the reaction parameters. The reaction is highly exothermic and the effect of temperature, rate of addition of reagents and reaction time are important factors affecting the formation of diol. Viscosity studies, HPLC, FTIR, NMR and acid number studies have shown that, these parameters could be used as process control parameters for the synthesis of diol. Refractive index of the synthesized diol is found to be higher than that of the reactants used.

scholarly journals Pengaruh Temperatur, Konsentrasi Katalis Dan Rasio Molar Metanol-Minyak Terhadap Yield Biodisel Dari Minyak Goreng Bekas Melalui Proses Netralisasi-Transesterifikasi

METANA ◽  
2018 ◽  
Vol 13 (1) ◽  
pp. 30
Author(s):  
Antonius Prihanto ◽  
T.A. Bambang Irawan
Keyword(s):  
Temperature Variation ◽  
Catalyst Concentration ◽  
Process Condition ◽  
Effect Of Temperature ◽  
Molar Ratio ◽  
Concentration Variation ◽  
Cooking Oil ◽  
Used Cooking Oil

Telah dilakukan penelitian tentang pembuatan biodisel dari minyak goreng bekas melalui proses netralisasi-transesterifikasi. Tujuan penelitian ini adalah untuk mengkaji pengaruh temperatur terhadap yield biodiesel, pengaruh konsentrasi katalis terhadap yield biodiesel dan pengaruh rasio molar methanol-minyak goreng bekas terhadap yield biodiesel melalui proses netralisasi dan transesterifikasi. Untuk mendapatkan kondisi proses transesterifikasi terbaik, maka dikaji pengaruh variasi suhu (30 oC, 40 oC, 50 oC, 60 oC, 70 oC), variasi konsentrasi katalis KOH (0,75 %, 1 %, 1,25 %, 1,5 %, 1,75 %) dan rasio molar metanol-minyak (6:1; 7:1; 8:1; 9:1; 10:1) terhadap yield biodiesel yang dihasilkan dari minyak goreng bekas. Hasil penelitian menunjukkan pada rasio 6 : 1, konsentrasi katalis KOH 1 % pada suhu 60 oC mengahasilkan yield biodiesel maksimal sebesar 87,3 %. Effect of Temperature, Catalyst Concentration and Methanol-Oil Molar Ratio Against Biodiesel Yield from Used Cooking Oil Through Neutralization Transesterification ProcessA research has been conducted on the making of biodiesel from used cooking oil through a neutralization-transesterification process. The purpose of this study was to examine the effect of temperature on biodiesel yield, the effect of catalyst concentration on biodiesel yield and the effect of molar ratio of methanol to used biodiesel yield through neutralization and transesterification process. To obtain the best transesterification process condition, the effect of temperature variation (30 oC, 40 oC, 50 oC, 60 oC, 70 oC), KOH catalyst concentration variation (0.75%, 1%, 1.25%, 1,5 %, 1.75%) and the molar ratio of methanol-oil (6: 1; 7: 1; 8: 1; 9: 1; 10: 1) to the yield of biodiesel produced from used cooking oil. The results showed at a ratio of 6: 1, the concentration of 1% KOH catalyst at 60 ° C resulted in a maximum biodiesel yield of 87.3%.

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