Article
Thermodynamics
Timur A. Mukhametzyanov, Ruslan A. Andrianov, Dmitrii N. Bolmatenkov, Mikhail I. Yagofarov, Boris N. Solomonov, Christoph Schick
Summary: The nucleation and crystallization of the rapidly crystallizing organic compound benzocaine show different behaviors under different supercooling conditions, and the temperature transition of nucleation and crystallization is sharp and sample-dependent.
THERMOCHIMICA ACTA
(2023)
Article
Environmental Sciences
Chong Wang, Kunyu Li, Honghong Cai, Yumo Wu, Zhikun Lin, Shuangyang Li
Summary: This study establishes a theoretical model for pore solution freezing nucleation in unsaturated saline soils and verifies its effectiveness with data. The microscopic mechanism of supercooling in positive permafrost is elucidated.
WATER RESOURCES RESEARCH
(2023)
Article
Energy & Fuels
Igor De Las Heras, Javier Dufour, Baudilio Coto
Summary: A new method combining DSC and numerical integration has been developed to determine solid-liquid equilibrium and eutectic compositions of hydrocarbon binary systems with high accuracy. The method includes a deconvolution procedure with an Asymmetric Double Sigmoidal equation for peak analysis, leading to significant time and resource savings compared to conventional methods. The new method was successfully validated against conventional methods with minimal errors in SLE data.
Article
Entomology
Lisa G. Neven
Summary: This study investigates the overwintering adaptations of the Western cherry fruit fly and its potential effects on its abundance and distribution under climate change. The effects of diapause chilling duration and post-chilling warm rearing on metabolic rate and supercooling point were determined. The results show that the Western cherry fruit fly can diapause for more than 1 year and its metabolic rate serves as a useful indicator for predicting future abundance and distribution.
ENVIRONMENTAL ENTOMOLOGY
(2023)
Article
Chemistry, Applied
Ivano Maule, Gabriele Razzetti, Alessandro Restelli, Alessandro Palmieri, Cinzia Colombo, Roberto Ballini
Summary: The thermal stability of a set of aliphatic nitroalkanes was tested by DSC analysis, showing similar exothermic decomposition phenomenon for all compounds. Recommendations for avoiding decomposition were provided based on the estimated maximum process temperature.
ORGANIC PROCESS RESEARCH & DEVELOPMENT
(2021)
Article
Environmental Sciences
Mauricio Rodriguez Chialanza, Sofia Favre Samarra, Andres Perez Parada
Summary: The study found that the size of microplastic particles affects the DSC signal, but through appropriate sample preparation, signals corresponding to microplastics of different sizes can be identified and quantified. Additionally, the application of DSC technique in the field of microplastics may provide estimates of the number of microplastic particles within a sample.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Materials Science, Ceramics
Raschid Al-Mukadam, Joachim Deubener
Summary: Repetitive-scanning calorimetry was used to study heterogeneous crystal nucleation of supercooled lithium disilicate melt in glassy carbon containers, revealing the potential role of carbon particles in seeding the crystallization process.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Construction & Building Technology
Panos Apostolidis, Michael Elwardany, Adrian Andriescu, David J. Mensching, Jack Youtcheff
Summary: The contribution of thermodynamics of mixing to glass transition in polymer-modified asphalt binders was studied quantitatively using a differential scanning calorimeter with an epoxy system. The miscibility of the binders was determined by measuring the heat capacity (Cp) and glass transition temperature (Tg) based on entropic changes. The enthalpy of mixing was also examined to ensure complete crosslinking of the binders. The results showed that the positive deviations of Tg from the ideal mixing rule indicated the presence of repulsive forces between the asphalt and epoxy components.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Chemistry, Analytical
Fengqi Wang, Yanna Zhang, Qi Wu, Wei Xiao, Jingbo Zhu, Yan Ding
Summary: The study presents a combined HPLC-DSC method for purity calibration and uncertainty measurement of natural products sourcing chemical reference substances (NPSCRSs). The uncertainty mainly originates from the influence factors in HPLC analysis, while DSC method serves as a practical and fast alternative for purity determination of NPSCRSs with purity above 98%.
MICROCHEMICAL JOURNAL
(2021)
Article
Thermodynamics
Xian Dong, Jinfeng Mao, Shibin Geng, Yong Li, Pumin Hou, Huiliang Lian
Summary: A new SSD composite phase change energy storage material was synthesized by adding nucleating agents and thickeners, reducing supercooling and preventing phase stratification. Additionally, the addition of expanded graphite with high thermal conductivity effectively increased the thermal conductivity.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Materials Science, Paper & Wood
Hefang Liu, Qiyuan Tu, Luyao Huang, Wenhua Gao, Jinsong Zeng, Bin Wang, Jinpeng Li, Jun Xu
Summary: In this study, a concentrated cellulose nanofibril (CNF) suspension was prepared from bleached hardwood kraft pulp without pretreatment. The concentration process promoted the formation of pores in the CNFs, but these pores partially collapsed and shrunk during the re-dispersion and re-concentration process.
Article
Food Science & Technology
Juliana S. Farah, Rodrigo N. Cavalcanti, Jonas T. Guimaraes, Celso F. Balthazar, Pablo T. Coimbra, Tatiana C. Pimentel, Erick A. Esmerino, Maria Carmela K. H. Duarte, Monica Q. Freitas, Daniel Granato, Roberto P. C. Neto, Maria Ines B. Tavares, Veronica Calado, Marcia C. Silva, Adriano G. Cruz
Summary: The study successfully detected adulteration in raw bovine milk using DSC coupled with machine-learning tools, with GBM and MLP achieving 100% classification capability and RF showing optimal performance as well. Different models had varying important predictors, showcasing a multidimensional approach with practical potential for adoption by the dairy industry.
Article
Polymer Science
Duncan Schwaller, Elliot Christ, Melanie Legros, Dominique Collin, Philippe J. Mesini
Summary: Differential scanning calorimetry is used to measure the thermodynamic properties of organogels, revealing broad endothermic peaks and their corresponding temperatures. The phase diagram explains why the molar melting enthalpies of low concentration samples are lower than expected, while the inflection points of thermograms provide a more accurate measurement of the gel melting temperature.
Article
Chemistry, Physical
Yukio Terashima
Summary: The study found that the gas conditions during the cooking process of cotton candy are crucial to its physical state and thermal stability. Cotton candy made in air was mainly crystalline with a small amorphous part, and easily degraded by aging. Meanwhile, cotton candy made in nitrogen gas exhibited a more glassy structure and had a different aging behavior compared to the one made in air.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Environmental Sciences
Anhong Tian, Junsan Zhao, Bohui Tang, Daming Zhu, Chengbiao Fu, Heigang Xiong
Summary: This study compared different models to predict total salt content in different disturbance levels, finding that the optimal FOD-SLB-PLSR models in higher fractional orders (1.6 to 1.8) can extract more complex information and have better predictability for total salt content, indicating that fractional-order differential models are superior to integral differential models.
Article
Geography, Physical
Xusheng Wan, Yuanming Lai, Chong Wang
PERMAFROST AND PERIGLACIAL PROCESSES
(2015)
Article
Environmental Sciences
Wan Xusheng, You Zhemin, Wen Haiyan, William Crossley
JOURNAL OF ARID LAND
(2017)
Article
Engineering, Civil
Xusheng Wan, Fumao Gong, Mengfei Qu, Enxi Qiu, Changmao Zhong
KSCE JOURNAL OF CIVIL ENGINEERING
(2019)
Article
Engineering, Environmental
Xusheng Wan, Zhaohui (Joey) Yang
COLD REGIONS SCIENCE AND TECHNOLOGY
(2020)
Article
Engineering, Environmental
Xusheng Wan, Enlong Liu, Enxi Qiu, Mengfei Qu, Xiang Zhao, F. J. Nkiegaing
COLD REGIONS SCIENCE AND TECHNOLOGY
(2020)
Article
Geography, Physical
Xusheng Wan, Enlong Liu, Enxi Qiu
Summary: This study presents a computational model of the freezing point and nucleation rate in saline soils based on soil volume, exploring the influence of salt content on water supercooling. The relationship between salt content and initial contact angle is quantitatively analyzed, with ice crystal growth determined by the contact angle. Results show that ice crystal size decreases with lower salt concentration, while ice nucleation temperature is mainly determined by the contact angle, decreasing with increasing soil volume.
PERMAFROST AND PERIGLACIAL PROCESSES
(2021)
Article
Thermodynamics
Enxi Qiu, Changmao Zhong, Xusheng Wan, Jianguo Lu, Han Mei Chen, Nima Pirhadi, Zhisheng Wang, Qiuling Chen
Summary: The research redefined the composition of saline soil by defining shape parameters and verified the accuracy of the proposed thermal conductivity model. The results showed significant influence of shape parameters on simulation results.
HEAT AND MASS TRANSFER
(2021)
Article
Engineering, Civil
Mengfei Qu, Yu Bai, Qijun Hu, Leping He, Enxi Qiu, Xusheng Wan
Summary: The research developed a comprehensive method to predict the saturated internal friction angle based on support vector machine, after investigating the relationship between the saturated internal friction angle and factors affecting it. The proposed method was validated with a mean absolute error of 0.90 degrees and a mean relative error of 8.77%, showing it could provide reliable assistance for engineers in landslide control.
KSCE JOURNAL OF CIVIL ENGINEERING
(2021)
Article
Engineering, Civil
Yuanming Lai, Wei Wen, Wansheng Pei, Xusheng Wan
Summary: Research shows that soil desertification and salinization are serious issues in arid and semi-arid regions, requiring attention to the transport laws of salt under evaporation. The newly developed model effectively describes the interactions between moisture, heat, gas, and salt, revealing the impact of temperature difference during the evaporation process.
JOURNAL OF HYDROLOGY
(2021)
Article
Geography, Physical
Xusheng Wan, Wansheng Pei, Jianguo Lu, Enxi Qiu, Zhongrui Yan, Nima Pirhadi, Jishuai Zhu
Summary: In this study, an analytical model based on equivalent contact angle was developed to predict the unfrozen water content in soil. The results showed a close relationship between the unfrozen water content and equivalent contact angle, with an increase in equivalent contact angle as the temperature decreased. The pore water in the soil froze first when the contact angle was smaller. The analytical model provided accurate predictions of the unfrozen water content, especially under low-temperature conditions and during the early stage of water freezing.
PERMAFROST AND PERIGLACIAL PROCESSES
(2022)
Article
Engineering, Environmental
Enxi Qiu, Youbiao He, Xusheng Wan, Jianguo Lu, Nima Pirhadi, Zhongrui Yan
Summary: This study focuses on investigating the mechanical and phase transformation characteristics of mortar by adding nano-CaCO3, silica fume, epoxy resin, and mixtures of these components. The results show that the additives form a compact structure inside the mortar, preventing harmful ions from infiltrating and improving the compressive strength. After multiple salt and freeze/thaw cycles, the deterioration of the modified mortar is reduced, with epoxy resin showing the most prominent improvement rate.
JOURNAL OF COLD REGIONS ENGINEERING
(2022)