Influence Of Temperature Research Articles

The influence of air temperature on heat transfer coefficient under forced air-cooling conditions

The influence of air temperature on heat transfer coefficient under forced air-cooling conditions

Influence of foaming temperature on the structure of coal-based carbon foams and the electrochemical performance of electrical double-layer capacitors

Influence of foaming temperature on the structure of coal-based carbon foams and the electrochemical performance of electrical double-layer capacitors

Influence of different temperature on tensile failure mechanism of carbon/glass 2.5D woven hybrid composites: Experiment and numerical calculation

Influence of different temperature on tensile failure mechanism of carbon/glass 2.5D woven hybrid composites: Experiment and numerical calculation

Influence of pH and Annealing Temperature on Hematite (α-Fe2O3) Nanoparticle Synthesis with Pine Needle Extract and Investigation of Structural, Magnetic, and Dielectric Properties

Influence of pH and Annealing Temperature on Hematite (α-Fe2O3) Nanoparticle Synthesis with Pine Needle Extract and Investigation of Structural, Magnetic, and Dielectric Properties

Influence of sintering temperature on graphitic carbon nitride nanosheets grafted binary metal oxide for high performance asymmetric supercapacitors

Influence of sintering temperature on graphitic carbon nitride nanosheets grafted binary metal oxide for high performance asymmetric supercapacitors

Influence of implantation temperature and He implantation-induced defects on morphological evolution of co-deposited Cu-Mo nanocomposites

Influence of implantation temperature and He implantation-induced defects on morphological evolution of co-deposited Cu-Mo nanocomposites

Influence of pouring and mold temperatures on microstructural behavior and microhardness of the Al-4.5Cu-0.5(Al-5Ti-1B) alloy obtained by unsteady-state directional solidification: An experimental comparative study

Influence of pouring and mold temperatures on microstructural behavior and microhardness of the Al-4.5Cu-0.5(Al-5Ti-1B) alloy obtained by unsteady-state directional solidification: An experimental comparative study

Influence of synthesis temperature on the active performance of doped‑carbon dots embedded in polyvinyl alcohol and their potential for active food packaging.

Influence of synthesis temperature on the active performance of doped‑carbon dots embedded in polyvinyl alcohol and their potential for active food packaging.

Measuring heat transfer index (HTI): A new method to quantify the spatial influence of land surface temperature between adjacent urban spaces

Measuring heat transfer index (HTI): A new method to quantify the spatial influence of land surface temperature between adjacent urban spaces

Transcription factor PgCDF2 enhances heat tolerance of Physalis grisea by activating heat shock transcription factors PgHSFA1 and PgHSFB3.

High temperature influence flower bud differentiation in Physalis grisea, resulting in the production of deformed fruits and affects fruit yield and quality. However, the molecular mechanisms underlying the response of P. grisea to heat stress (HS) remain unclear. In this study, HS treatment and dynamic transcriptome analysis of P. grisea identified the PgCDF2-PgHSFA1/PgHSFB3 transcriptional regulatory module as playing a key role in the response of P. grisea to HS. Gene Ontology (GO) enrichment analysis, transcriptional regulation prediction, and weighted correlation network analysis (WGCNA) of heat stress (HS)-responsive transcriptome data identified three key genes, PgCDF2, PgHSFA1 and PgHSFB3, as components of the regulatory network of heat stress in P. grisea. The expression levels of PgCDF2, PgHSFA1, and PgHSFB3 were up-regulated following exposure to HS. Silencing of PgHSFA1 and PgHSFB3 resulted in reduced heat stress tolerance and altered reactive oxygen species levels in P. grisea. Dual-luciferase assay and Electrophoretic Mobility Shift Assay (EMSA) results indicate that PgCDF2 binds to the promoters of PgHSFA1 and PgHSFB3 and activate their expression. Silencing of PgCDF2 inhibited the expression of PgHSFA1 and PgHSFB3 and also reduced the heat tolerance of P. grisea. In summary, under HS, PgCDF2 enhances the heat tolerance of P. grisea by activating the expression of PgHSFA1 and PgHSFB3. This study clarifies the role of the PgCDF2-PgHSFA1/PgHSFB3 module in the response of P. grisea to HS, providing a theoretical basis for a more in-depth analysis of the molecular mechanisms underlying this response.

Design of Organosolv Lignin Fractionation: Influence of Temperature, Antisolvent, and Source on Molecular Weight, Structure, and Functionality of Lignin Fragments

Design of Organosolv Lignin Fractionation: Influence of Temperature, Antisolvent, and Source on Molecular Weight, Structure, and Functionality of Lignin Fragments

Experimental Design (24) to Improve the Reaction Conditions of Non-Segmented Poly(ester-urethanes) (PEUs) Derived from α,ω-Hydroxy Telechelic Poly(ε-caprolactone) (HOPCLOH)

Aliphatic unsegmented polyurethanes (PUs) have garnered relatively limited attention in the literature, despite their valuable properties such as UV resistance and biocompatibility, making them suitable for biomedical applications. This study focuses on synthesizing poly(ester-urethanes) (PEUs) using 1,6-hexamethylene diisocyanate and the macrodiol α,ω-hydroxy telechelic poly(ε-caprolactone) (HOPCLOH). To optimize the synthesis, a statistical experimental design approach was employed, a methodology not commonly utilized in polymer science. The influence of reaction temperature, time, reagent concentrations, and solvent type on the resulting PEUs was investigated. Characterization techniques included FT-IR, 1H NMR, differential scanning calorimetry (DSC), gel permeation chromatography (GPC), optical microscopy, and mechanical testing. The results demonstrated that all factors significantly impacted the number-average molecular weight (Mn) as determined by GPC. Furthermore, the statistical design revealed crucial interaction effects between factors, such as a dependence between reaction time and temperature. For example, a fixed reaction time of 1 h, with the temperature varying from 50 °C to 61° C, did not significantly alter Mn. Better reaction conditions yielded high Mn (average: 162,000 g/mol), desirable mechanical properties (elongation at break > 1000%), low levels of unreacted HOPCLOH in the PEU films (OH/ESTER response = 0.0008), and reduced crystallinity (ΔHm = 11 J/g) in the soft segment, as observed by DSC and optical microscopy. In contrast, suboptimal conditions resulted in low Mn, brittle materials with unmeasurable mechanical properties, high crystallinity, and significant amounts of residual HOPCLOH. The best experimental conditions were 61 °C, 0.176 molal, 8 h, and chloroform as the solvent (ε = 4.8).

Influence of photoperiod and temperature on sexual maturation in Masu salmon (Oncorhynchus masou)

Influence of photoperiod and temperature on sexual maturation in Masu salmon (Oncorhynchus masou)

Soft and Responsive: Rheological Insights into PNIPAM based Microgels and Applications.

In this review, we synthesize and critically evaluate past and recent findings on the rheology of microgels based on poly(N-isopropylacrylamide) (PNIPAM), versatile soft materials with tunable properties, providing a comprehensive analysis of their flow behaviour. Differences and similarities are pointed out depending on their stucture: homopolymeric, core-shell, copolymeric and interpenetrate polymer networks microgels. We discuss rotational and oscillatory shear rheology measurements and examine the influence of crosslinker density, temperature, pH, and polymer concentration. Additionally, we highlight the practical implications in the knowledge of the rheological properties for applications. Through this review, therefore, we aim to create a solid starting point for all scientists involved in this research area with a powerful source identifying current challenges and potential future research directions.

Preparation of Phosphate Glass by the Conventional and Microwave Melt-Quenching Methods and Research on Its Performance.

In this study, various phosphate glasses (PGs) within the CaO-Na2O-P2O5 and SiO2-CaO-Na2O-P2O5 systems were synthesized using both conventional and microwave melt-quenching techniques. The physical, thermal, and structural properties of these phosphate glasses, as well as their dissolution behaviors under varying temperatures and solvent conditions, were thoroughly examined. Additionally, the influence of scale inhibitor dosage, temperature, and pH on the rate of scale inhibition was assessed using a static scale inhibition test. The morphology and crystal types of the precipitates were characterized using Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD) analysis. The findings indicate that the PG structure predominantly consists of Q2 structural units, with a minor presence of Q1 units. The dissolution rate of PG escalates with an increase in temperature and a decrease in pH. Conversely, the scale inhibition efficiency diminishes with rising temperature and pH. Optimal scale inhibition efficiency, reaching up to 95.4%, was observed at a pH of 7 and a temperature of 50 °C. Under the influence of the PG scale inhibitor, the primary crystal form of CaCO3 was altered from calcite to vaterite.

Nonequilibrium phase diagram for the serration statistics during slow deformation of refractory high-entropy alloys

Diverse slip behaviors are observed in HfNbTaTiZr refractory high-entropy alloy during tensile tests. Slow-avalanche and fast-runaway phases are identified by analyzing scaling relationships among slip statistics. Slow avalanches display a scaling collapse in temporal shapes, aligning with mean-field slip theory, while system-spanning fast-runaway avalanches show a Gaussian shape, indicating rapid nucleation due to dynamic weakening. Through time scale analysis, we construct a nonequilibrium phase diagram elucidating the influence of temperature and strain rate variations on solute-dislocation interaction.

The influence of calcination temperature on the activity and SO2 tolerance performance of MnCeOx catalyst for NH3-selective catalytic reduction reaction

The influence of calcination temperature on the activity and SO2 tolerance performance of MnCeOx catalyst for NH3-selective catalytic reduction reaction

The Influence of PEABr Passivation Concentration, Light Exposure, and Temperature on the Electrochemical Behavior and Charge Transfer Resistance in MAPbBr3 Single Crystals

AbstractMethylammonium lead bromide (MAPbBr3) single crystals (SCs) showed promise for next‐generation optoelectronic devices due to their exceptional charge transport properties and ease of fabrication. However, surface passivation, light exposure, and temperature significantly influenced their electrochemical behavior, charge transfer resistance, and overall device performance. This study investigated the effects of phenylethylammonium bromide (PEABr) passivation concentration, varying light conditions, and temperature on the electrochemical properties of MAPbBr3 SCs. Results showed that increasing PEABr passivation concentration significantly enhanced charge transfer dynamics and reduced interfacial resistance. Passivation concentrations, particularly 20 mM and 50 mM, effectively reduced resistance and ion migration rates, enhanced charge carrier mobility, and minimized recombination losses. Charge transfer resistance exhibited a substantial dependence on passivation concentration and a moderate dependence on light type under various light exposures. The ion activation energy increased from 0.21 eV to 0.40 eV after passivation, indicating effective suppression of ion migration and improved electrochemical stability. Phase angle analysis from Bode plots further demonstrated enhanced charge transfer and capacitive behavior under all tested conditions with higher passivation concentrations. These findings highlighted the critical role of optimizing PEABr passivation concentration in reducing charge transfer resistance, enhancing charge carrier dynamics, and improving the electrochemical performance of MAPbBr3 SCs.

Effect of Impregnation Temperature on Monoethanolamine-Kenaf Biosorbent for CO2 Adsorption from Gas Mixture

Capturing carbon dioxide (CO2) from industrial resources to mitigate the global increase in carbon emissions is a challenging and expensive process, especially when utilizing Carbon Capture and Storage (CCS) technologies. The energy cost of CO2 capture in post-combustion CCS, employing the absorption method with monoethanolamine (MEA) as the commonly used liquid amine. This study focusing on the adsorption method, which is more energy saving and less corrosive for CO2 captured, by using modified kenaf biosorbent. Its low density, highly porous and permeability is well matched to be used as adsorbent. This study specifically investigated the influence of impregnation temperature of kenaf modified with a constant concentration of MEA towards the CO2 adsorption capability at different gas flowrates and pressure bed. From the surface morphology of modified kenaf sorbent, MEA-kenaf impregnated at 55 °C exhibited large pore openings and more structured walls compared to the other temperatures. The kenaf samples were then utilized in IsoSORP gas analyzer for CO2 adsorption with a mixture of CO2 - Nitrogen (N2) at two different flow rates and various pressure beds. The highest CO2 adsorption was achieved by the modified kenaf at impregnation temperature of 55 °C (gas flowrate 150 cm3/min) and 65 °C (gas flowrate 250 cm3/min). Apart from that, the adsorption ability shows a proportional increment when the gas pressure flow increased from 10 up to 30 bar. The research findings indicated that increasing the impregnation temperature enhanced the sorbent's pore size and nitrogen content impregnated on the kenaf surface (increase basicity), resulting in a significant improvement in CO2 adsorption capacity.

Numerical Investigation of the Influence of Temperature on Fluidization Behavior: Importance of Particle Collision Parameters and Inter-Particle Forces

Fluidized bed reactors (FBRs) are integral to various industries due to their exceptional capability in facilitating efficient gas–solid interactions, resulting in superior mixing and heat and mass transfer. This research delves into the impact of temperature on fluidization dynamics, particularly focusing on the collisional properties of particles within the bed. The investigation builds upon foundational research, notably Geldart’s classification of fluidization regimes and recent advancements in high-temperature experimental techniques, such as High-Temperature Endoscopic-Laser particle image velocimetry/digital image analysis. To explore these temperature effects, a coupled Discrete Element Method and Computational Fluid Dynamics (cfd–dem) model was employed. This approach enables a detailed examination of gas–particle and particle–particle interactions under varying temperature conditions. The simulations in this study explore the friction coefficient, as well as changes in both tangential and normal restitution coefficients, which affect the fluidization behavior. These changes were systematically analyzed to determine their influence on minimum fluidization velocity and bubble formation. The numerical results are compared with experimental data from high-temperature fluidization studies, highlighting the necessity of incorporating inter-particle forces to fully capture the observed phenomena. The findings underscore the critical role of particle collisional properties in high-temperature fluidization and suggest the potential increasing role of inter-particle forces. Overall, this paper provides new insights into the complex dynamics of fluidized beds at elevated temperatures, emphasizing the need for further experimental–numerical research to enhance the reliability and understanding of these systems in industrial applications.