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164 Results Found

  • Article
  • Open Access
2 Citations
2,079 Views
23 Pages

8 August 2023

Degradation models are central to the lifetime prediction of electromagnetic relays. Coefficients of degradation models under accelerated degradation test (ADTs) can be obtained experimentally, and it is customary to map these coefficients back to th...

  • Article
  • Open Access
3 Citations
2,661 Views
10 Pages

Identification of the Kinetic Parameters of Thermal Micro-Organisms Inactivation

  • Ivan Bondarchuk,
  • Valery Perevozkin,
  • Sergey Bondarchuk and
  • Alexander Vorozhtsov

12 November 2022

A mathematical model for estimating the characteristics of the process of thermal inactivation of vegetative bacterial cells and their spores is presented. The model relates the change rate of the number of living cells as a nonlinear kinetic depende...

  • Article
  • Open Access
22 Citations
6,553 Views
15 Pages

Origin and Justification of the Use of the Arrhenius Relation to Represent the Reaction Rate of the Thermal Decomposition of a Solid

  • Benjamin Batiot,
  • Thomas Rogaume,
  • Franck Richard,
  • Jocelyn Luche,
  • Anthony Collin,
  • Eric Guillaume and
  • José Luis Torero

29 April 2021

Degradation models are commonly used to describe the generation of combustible gases when predicting fire behavior. A model may include many sub-models, such as heat and mass transfer models, pyrolysis models or mechanical models. The pyrolysis sub-m...

  • Article
  • Open Access
15 Citations
8,012 Views
24 Pages

30 April 2020

A variety of current experiments and molecular dynamics computations are expanding our understanding of rate processes occurring in extreme environments, especially at low temperatures, where deviations from linearity of Arrhenius plots are revealed....

  • Article
  • Open Access
11 Citations
2,778 Views
20 Pages

Hot Deformation Behavior of the 25CrMo4 Steel Using a Modified Arrhenius Model

  • Hongtu Xu,
  • Tiantai Tian,
  • Jiahao Zhang,
  • Liqun Niu,
  • Hongbin Zhu,
  • Xingtao Wang and
  • Qi Zhang

12 April 2022

25CrMo4 steel is widely used in the manufacturing of high-speed train axles due to its excellent mechanical properties. The purpose of this study is to develop an accurate modified constitutive model to describe the hot deformation behavior of the st...

  • Article
  • Open Access
21 Citations
2,822 Views
17 Pages

26 May 2022

To realize the purpose of energy saving, materials with high weight are replaced by low-weight materials with eligible mechanical properties in all kinds of fields. Therefore, conducting research works on lightweight materials under specified work co...

  • Article
  • Open Access
8 Citations
1,629 Views
17 Pages

An Optimized Strain-Compensated Arrhenius Constitutive Model of GH4169 Superalloy Based on Hot Compression

  • Xiang Cheng,
  • Ruomin Wang,
  • Xiaolu Chen,
  • Shasha Jin,
  • Qinke Qian and
  • He Wu

9 July 2024

A precise constitutive model is essential for capturing the deformation characteristics of the GH4169 superalloy in numerical simulations of thermal plastic forming processes. Hence, the aim of this study was to develop a precise modified constitutiv...

  • Article
  • Open Access
10 Citations
4,300 Views
13 Pages

11 February 2022

Ozawa has modified the Avrami model to treat non-isothermal crystallization kinetics. The resulting Ozawa–Avrami model yields the Avrami index (n) and heating/cooling function (χ(T)). There has been a number of recent applications of the Oz...

  • Article
  • Open Access
3 Citations
5,885 Views
12 Pages

Accelerated Stability Testing in Food Supplements Underestimates Shelf Life Prediction of Resveratrol with Super-Arrhenius Behavior

  • Andrea Biagini,
  • Nicola Refrigeri,
  • Concetta Caglioti,
  • Paola Sabbatini,
  • Silvia Ticconi,
  • Giada Ceccarelli,
  • Rossana Giulietta Iannitti,
  • Federico Palazzetti and
  • Bernard Fioretti

18 April 2024

Thermo-oxidative stability testing plays a critical role in accurately predicting shelf life. These tests are performed in real time and under stress conditions, where degradation processes are accelerated by increasing storage conditions. In this st...

  • Article
  • Open Access
1 Citations
786 Views
17 Pages

Monitored and Predicted Data for a Diesel Fuel Hydrotreating Reactor

  • Laura Elisabeta Petraş,
  • Tănase Dobre,
  • Nela Şerbănescu,
  • Florian Daniel Pop and
  • Oana Cristina Pârvulescu

25 May 2025

A mathematical model based on power law kinetics was selected to simulate the hydrotreating process of diesel fuel (also called diesel oil or diesel), assuming hydrogenation reactions of sulfur compounds, nitrogen compounds, aromatic compounds, and o...

  • Article
  • Open Access
15 Citations
3,199 Views
11 Pages

28 January 2023

The Arrhenius crossover temperature, TA, corresponds to a thermodynamic state wherein the atomistic dynamics of a liquid becomes heterogeneous and cooperative; and the activation barrier of diffusion dynamics becomes temperature-dependent at temperat...

  • Article
  • Open Access
3 Citations
1,614 Views
12 Pages

30 November 2023

A discharge-flow reactor combined with modulated molecular beam mass spectrometry technique was employed to determine the rate constants of H-atom reactions with hydrogen sulfide and thiirane. The rate constants for both reactions were determined at...

  • Article
  • Open Access
16 Citations
2,752 Views
16 Pages

Hot Deformation and Constitutive Modeling of TC21 Titanium Alloy

  • Sheng-Xian Yi,
  • Zhong-Jiong Yang and
  • Huang-Xin Xie

4 March 2022

Titanium alloys are extensively employed in the fabrication of various aviation structural parts, of which the most crucial processing step is hot working. In order to study the high-temperature deformation behavior of the TC21 titanium alloy, high-t...

  • Article
  • Open Access
24 Citations
5,953 Views
20 Pages

“Transitivity”: A Code for Computing Kinetic and Related Parameters in Chemical Transformations and Transport Phenomena

  • Hugo G. Machado,
  • Flávio O. Sanches-Neto,
  • Nayara D. Coutinho,
  • Kleber C. Mundim,
  • Federico Palazzetti and
  • Valter H. Carvalho-Silva

25 September 2019

The Transitivity function, defined in terms of the reciprocal of the apparent activation energy, measures the propensity for a reaction to proceed and can provide a tool for implementing phenomenological kinetic models. Applications to systems which...

  • Article
  • Open Access
3 Citations
1,610 Views
15 Pages

1 March 2024

A low-voltage circuit breaker thermal trip plays a role in power systems, including opening and closing, control, protection, and more. Their reliability directly affects the security and stability of the power distribution system. The Wiener process...

  • Article
  • Open Access
5 Citations
2,391 Views
13 Pages

Protein unfolding is a ubiquitous process responsible for the loss of protein functionality (denaturation), which, in turn, can be accompanied by the death of cells and organisms. The nature of enthalpy–entropy compensation (EEC) in the kinetic...

  • Article
  • Open Access
34 Citations
11,057 Views
15 Pages

14 January 2019

Polymers are widely used in various industries because of their characteristics such as elasticity, abrasion resistance, fatigue resistance and low temperature. In particular, the tensile characteristic of rubber composites is important for the stabi...

  • Article
  • Open Access
51 Citations
5,148 Views
19 Pages

28 December 2019

In oncology, hyperthermia is understood as a planned, controlled technique of heating cancerous changes in order to destroy their cells or stop their growth. In clinical practice, hyperthermia is used in combination with radiotherapy, chemotherapy, o...

  • Article
  • Open Access
9 Citations
4,670 Views
18 Pages

Lifetime Analysis of Commercial 3 W UV-A LED

  • F. Jose Arques-Orobon,
  • Manuel Vazquez and
  • Neftali Nuñez

27 November 2020

The lifetime of ultraviolet high-power light-emitting diodes (UV HP-LEDs) is an open issue due to their high current density, high temperature, and UV radiation. This work presents a reliability study and failure analysis of three high-temperature ac...

  • Article
  • Open Access
1 Citations
2,456 Views
16 Pages

Low Energy Electron Attachment by Some Chlorosilanes

  • Bartosz Michalczuk,
  • Wiesława Barszczewska,
  • Waldemar Wysocki and
  • Štefan Matejčík

17 August 2021

In this paper, the rate coefficients (k) and activation energies (Ea) for SiCl4, SiHCl3, and Si(CH3)2(CH2Cl)Cl molecules in the gas phase were measured using the pulsed Townsend technique. The experiment was performed in the temperature range of 298–...

  • Article
  • Open Access
1 Citations
810 Views
24 Pages

Temperature Dependence of Hardness of High Entropy Alloys

  • Ottó K. Temesi,
  • Albert Karacs,
  • Nguyen Q. Chinh and
  • Lajos K. Varga

30 May 2025

Correlations have been found for the base value of hardness (as the ratio between the heat of fusion and molar volume) and the softening temperature (as the ratio of heat of fusion and specific heat capacity). The relative change of bulk hardness as...

  • Article
  • Open Access
12 Citations
3,074 Views
16 Pages

10 January 2023

Water dynamics in nanochannels are altered by confinement, particularly in small carbon nanotubes (CNTs). However, the mechanisms behind these effects remain unclear. To address these issues, we carried out extensive molecular dynamics (MD) simulatio...

  • Review
  • Open Access
28 Citations
4,454 Views
25 Pages

18 October 2022

The present review is related to the studies of structural changes observed in metallic glass-forming liquids on cooling and subsequent vitrification in terms of radial distribution function and its analogues. These structural changes are discussed i...

  • Article
  • Open Access
40 Citations
7,261 Views
18 Pages

18 July 2013

Decomposition mechanisms, activation barriers, Arrhenius parameters, and reaction kinetics of the novel explosive compounds, 3,4-bis(4-nitro-1,2,5-oxadiazol-3-yl)-1,2,5-oxadiazole (BNFF-1), and 3-(4-amino-1,2,5-oxadiazol-3-yl)-4-(4-nitro-1,2,5-oxadia...

  • Article
  • Open Access
97 Citations
9,970 Views
14 Pages

12 April 2020

Pyrolysis of waste low-density polyethylene (LDPE) is considered to be a highly efficient, promising treatment method. This work aims to investigate the kinetics of LDPE pyrolysis using three model-free methods (Friedman, Flynn-Wall-Qzawa (FWO), and...

  • Proceeding Paper
  • Open Access
631 Views
9 Pages

Degradation of Elastomer Damping Component for High-Speed Bearings

  • Anastasia Gaitanidou,
  • Mario Tränkner,
  • Georgios Iosifidis,
  • Roberto DeSantis,
  • Theofilos Efstathiadis and
  • Anestis Kalfas

The present paper studies the degradation of an ethylene propylene diene monomer (EPDM) due to aging within an environment resembling the conditions inside the turbine stage of an electrically assisted turbocharger for fuel cell applications, with a...

  • Article
  • Open Access
1 Citations
1,432 Views
23 Pages

16 May 2024

The development of offshore wind farms requires robust bonding solutions that can withstand harsh marine conditions for the easy integration of secondary structures. This paper investigates the durability performance of two adhesives: Sikadur 30 epox...

  • Article
  • Open Access
990 Views
20 Pages

Kinetic and Mechanistic Study of Polycarbodiimide Formation from 4,4′-Methylenediphenyl Diisocyanate

  • Marcell D. Csécsi,
  • R. Zsanett Boros,
  • Péter Tóth,
  • László Farkas and
  • Béla Viskolcz

3 September 2025

In the polyurethane industry, catalytically generated carbodiimides can modify the properties of isocyanate and, thus, the resulting foams. In this work, a kinetic reaction study was carried out to investigate the formation of a simple, bifunctional...

  • Article
  • Open Access
2,151 Views
19 Pages

5 October 2024

This work presents a comprehensive model for lignocellulosic biomass pyrolysis, addressing kinetics, energy balances, and gas product composition with the aim of its application in wood combustion. The model consists of a two-stage global mechanism i...

  • Article
  • Open Access
4 Citations
2,523 Views
8 Pages

Dielectric Response of KTaO3 Single Crystals Weakly Co-Doped with Li and Mn

  • Alexander Tkach,
  • Sebastian Zlotnik and
  • Paula M. Vilarinho

10 October 2021

Alkali tantalates are encouraging functional materials with versatile properties that make them potential players in microelectronics, photocatalytic processes or medicine. Here, KTaO3 single crystals with 0.27% Li and 0.15% or 0.31% Mn contents dete...

  • Article
  • Open Access
163 Citations
6,978 Views
17 Pages

21 February 2019

The present study gives a remedy for the malign tissues, cells, or clogged arteries of the heart by means of permeating a slim tube (i.e., catheter) in the body. The tiny size gold particles drift in free space of catheters having flexible walls with...

  • Article
  • Open Access
4 Citations
2,414 Views
10 Pages

5 February 2021

Composite solid electrolytes (1 − x)CsNO2-xND, where ND are nanodiamonds, including those after liquid-phase and gas-phase oxidation and reduction functionalization, were prepared, and their properties investigated by XRD, analysis of BET nitrogen ad...

  • Article
  • Open Access
12 Citations
5,440 Views
16 Pages

5 February 2024

The Diels–Alder (D–A) reaction between furan and maleimide is a thermally reversible reaction that has become a vital chemical technique for designing polymer structures and functions. The kinetics of this reaction, particularly in polyme...

  • Article
  • Open Access
5 Citations
2,455 Views
14 Pages

25 March 2023

We hereby present a novel “grafting-to”-like approach for the covalent attachment of plasmonic nanoparticles (PNPs) onto whispering gallery mode (WGM) silica microresonators. Mechanically stable optoplasmonic microresonators were employed...

  • Article
  • Open Access
1,710 Views
12 Pages

Normal Shock Waves in Chemically Reacting Flows with Exothermic and Endothermic Reactions Under High-Temperature Conditions

  • Andriy A. Avramenko,
  • Igor V. Shevchuk,
  • Margarita M. Kovetskaya,
  • Yulia Y. Kovetska,
  • Andrii I. Tyrinov and
  • Dmytro V. Anastasiev

26 January 2025

This article theoretically investigates the interaction of a normal shock wave in a flow with chemical reactions under high-temperature conditions. The main novelty of the work is that the thermal effect of chemical reactions is modeled as a function...

  • Article
  • Open Access
3 Citations
2,094 Views
11 Pages

Temperature Sensing with Thin Films of Flame-Formed Carbon Nanoparticles

  • Patrizia Minutolo,
  • Gianluigi De Falco,
  • Mario Commodo,
  • Alberto Aloisio and
  • Andrea D’Anna

31 July 2022

A porous nanostructured film of flame-formed carbon nanoparticles has been produced with a one-step procedure. The morphological and structural characteristics of the film have been characterized by atomic force microscopy and Raman spectroscopy. The...

  • Article
  • Open Access
13 Citations
4,791 Views
11 Pages

Dielectric Spectroscopy of Water Dynamics in Functionalized UiO-66 Metal-Organic Frameworks

  • Sergejus Balčiūnas,
  • Diana Pavlovaitė,
  • Martynas Kinka,
  • Jyun-Yi Yeh,
  • Po-Chun Han,
  • Fa-Kuen Shieh,
  • Kevin C.-W. Wu,
  • Mantas Šimėnas,
  • Robertas Grigalaitis and
  • Jūras Banys

23 April 2020

We present a dielectric spectroscopy study of dipolar dynamics in the hydrated UiO-66(Zr) type metal-organic frameworks (MOFs) functionalized with −NH2 and −F groups. Experiments are performed in a broad temperature and frequency ranges a...

  • Article
  • Open Access
14 Citations
2,552 Views
11 Pages

11 April 2020

The hot deformation behavior of nano-SiCp/Al-Si composites was studied by isothermal compression tests at 470–530 °C and strain rates of 0.01–5 s−1. A strain-compensation constitutive model was developed with a Z parameter and a...

  • Article
  • Open Access
63 Citations
15,807 Views
13 Pages

30 June 2019

Avocado is a highly potential functional fruit with significant health benefits which has high demand for consumption with a preferable taste. The fruit is one of the oil sources that still needs further examination on its probable kinetic behavior a...

  • Article
  • Open Access
3 Citations
1,466 Views
25 Pages

A New Constitutive Model Based on Taylor Series and Partial Derivatives for Predicting High-Temperature Flow Behavior of a Nickel-Based Superalloy

  • Heping Deng,
  • Xiaolong Wang,
  • Jingyun Yang,
  • Fanjiao Gongye,
  • Shishan Li,
  • Shixin Peng,
  • Jiansheng Zhang,
  • Guiqian Xiao and
  • Jie Zhou

11 July 2024

Ni-based superalloys are widely used in aerospace applications. However, traditional constitutive equations often lack the necessary accuracy to predict their high-temperature behavior. A novel constitutive model, utilizing Taylor series expansions a...

  • Article
  • Open Access
6 Citations
3,530 Views
14 Pages

8 July 2023

The versatile AC magnetic susceptibility technique offers a detailed insight into the complex electrodynamic phenomena in superconductors. In the present study, we outline the key effects related to the temperature, AC field amplitude and frequency v...

  • Article
  • Open Access
12 Citations
6,167 Views
11 Pages

1 September 2015

Formation of Ta5Si3 by self-propagating high-temperature synthesis (SHS) from elemental powder compacts of Ta:Si = 5:3 was experimentally and numerically studied. Experimental evidence showed that the increase of either sample density or preheating t...

  • Article
  • Open Access
36 Citations
6,532 Views
10 Pages

Preliminary Study on Biosensor-Type Time-Temperature Integrator for Intelligent Food Packaging

  • A. T. M. Mijanur Rahman,
  • Do Hyeon Kim,
  • Han Dong Jang,
  • Jung Hwa Yang and
  • Seung Ju Lee

15 June 2018

A glucose biosensor was utilized as a platform for the time-temperature integrator (TTI), a device for intelligent food packaging. The TTI system is composed of glucose oxidase, glucose, a pH indicator, and a three-electrode potentiostat, which produ...

  • Article
  • Open Access
9 Citations
5,944 Views
14 Pages

Mechanisms of Iodide–Triiodide Exchange Reactions in Ionic Liquids: A Reactive Molecular-Dynamics Exploration

  • Aaron Byrne,
  • Eduardo M. Bringa,
  • Mario G. Del Pópolo,
  • Jorge J. Kohanoff,
  • Vanesa Galassi and
  • Niall J. English

Efficient charge transport has been observed in iodine-doped, iodide-based room-temperature ionic liquids, yielding high ionic conductivity. To elucidate preferred mechanistic pathways for the iodide ( I − )-to-triiodide ( I 3 &minu...

  • Article
  • Open Access
1 Citations
2,252 Views
15 Pages

The Time–Temperature Superposition of Polymeric Rubber Gels Treated by Means of the Mode-Coupling Theory

  • Domenico Mallamace,
  • Giuseppe Mensitieri,
  • Martina Salzano de Luna and
  • Francesco Mallamace

3 May 2024

Viscoelastic relaxation measurements on styrene-butadiene rubbers (SBRs) doped with carbon nanotube (CNT) at different concentrations around the sol-gel transition show the time–temperature superposition (TTS). This process is described in term...

  • Article
  • Open Access
1 Citations
2,200 Views
24 Pages

CNT-PUFs: Highly Robust and Heat-Tolerant Carbon-Nanotube-Based Physical Unclonable Functions

  • Florian Frank,
  • Simon Böttger,
  • Nico Mexis,
  • Nikolaos Athanasios Anagnostopoulos,
  • Ali Mohamed,
  • Martin Hartmann,
  • Harald Kuhn,
  • Christian Helke,
  • Tolga Arul and
  • Stefan Katzenbeisser
  • + 1 author

11 November 2023

In this work, we explored a highly robust and unique Physical Unclonable Function (PUF) based on the stochastic assembly of single-walled Carbon NanoTubes (CNTs) integrated within a wafer-level technology. Our work demonstrated that the proposed CNT-...

  • Review
  • Open Access
185 Citations
14,012 Views
23 Pages

24 August 2021

Anthocyanins are colored valuable biocompounds, of which extraction increases globally, although functional applications are restrained by their limited environmental stability. Temperature is a critical parameter of food industrial processing that i...

  • Article
  • Open Access
43 Citations
22,644 Views
23 Pages

The lifetime of the battery significantly influences the acceptance of electric vehicles. Calendar aging contributes to the limited operating lifetime of lithium-ion batteries. Therefore, its consideration in addition to cyclical aging is essential t...

  • Article
  • Open Access
11 Citations
6,045 Views
22 Pages

2 March 2023

As the research on hybrid rocket motors advances, more accurate tools are needed to estimate the performance of the system by determining its fundamental parameters. One of them is certainly the regression rate of the solid fuel. Unfortunately, it de...

  • Article
  • Open Access
5 Citations
2,616 Views
15 Pages

Temperature Dependence of Platelet Metabolism

  • Freyr Jóhannsson,
  • James T. Yurkovich,
  • Steinn Guðmundsson,
  • Ólafur E. Sigurjónsson and
  • Óttar Rolfsson

26 January 2024

Temperature plays a fundamental role in biology, influencing cellular function, chemical reaction rates, molecular structures, and interactions. While the temperature dependence of many biochemical reactions is well defined in vitro, the effect of te...

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