Thermal environment

The tropical water environment faces increasing exposure to temperature extremes and contaminants stemming from human activities. Elevated temperatures and pollution levels in rivers and ponds have the potential to induce cumulative impacts on the diversity of aquatic ecosystems. However, the combined effects of these environmental changes on the life cycle of the Eucyclops euacanthus copepod, a bioindicator of aquatic ecosystem remain understudied.

9p vimitsuki 06-05-2025 1 1   Download

This paper presents a comprehensive analytical framework to characterize the nonlinear vibration behavior of a three-phase composite. The cylindrical panels are supported by a Pasternaktype elastic foundation and subjected to combined thermal environment and mechanical loads.

24p vimitsuki 30-03-2025 13 1   Download

In this study, the deflection and stress field of perfect and imperfect (with and without porosities) functionally graded (FG) cylindrical panels are determined following the first-order shear deformation theory (FSDT). The panel rested on the twoparameter elastic foundation (Pasternak foundation) under pressure loads and worked in a hygro-thermal environment.

6p vibenya 31-12-2024 4 2   Download

The aim of this Master of Engineering (MEng) - Aerospace thesis is to study the structural response and failure of aerospace grade composites during exposure to fire. Key aspects of the research are to analyse the thermal and mechanical responses of laminates and sandwich composites in high temperature and fire environments, which result in softening and structural failure. The research is concentrated on carbon/epoxy laminates and sandwich composites, which are the most common composite materials used in aerospace structures.

209p runthenight05 01-03-2023 14 3   Download

In this Masters thesis computational modelling techniques were employed to investigate iron-free apo-Lactoferrin (apo-Lf) structural conformation changes in the presence of variant temperature and pH. These conditions represent the environment most milk protein goes through in food processing and the production of food products.

162p runthenight04 02-02-2023 9 3   Download

The research examined dormitory thermal comfort after it was treated with vertically hydroponics vegetable garden on the West side (the side faces the sun) of the building.

7p lucastanguyen 01-06-2020 17 1   Download

In this work, novel cellulosic fibers are extracted from Washingtonia Filifera (WF) plant using an environment friendly technique. Morphological, physico-chemical, thermal and mechanical properties are reported in this paper.

14p tohitohi 19-05-2020 11 1   Download

This thesis aims to develop finite element models for studying vibration of FGM porous beams in thermal environment under moving loads. Both analytical method and finite element analysis are employed in the thesis. The analytical method is used to derive equations of motion for the beam, and the finite element method is then employed to solve the governing equations and to determine the dynamic characteristics of the beams.

28p xacxuoc4321 09-07-2019 38 7   Download

The objective of the thesis: Establishing thermal models of single-node, two-node and many-node associated with different thermal loading models acting on a small satellite in Low Earth Orbit. Finding analytical solutions of equations of thermal balance for small satellites by the dual criterion equivalent linearization method.

27p xacxuoc4321 08-07-2019 40 7   Download

HIV gp41(24–157) unfolds cooperatively over the pH range of 1.0–4.0 withTmvalues of 100
C. At pH 2.8, protein unfolding was 80% reversible and theDHvH /DHcal ratio of 3.7 is indicative of gp41 being trimeric. No evidence for a monomer–trimer equilibrium in the concentration range of 0.3–36lMwas obtained by DSC and tryptophan fluores-cence. Glycosylation of gp41 was found to have only a marginal impact on the thermal stability. Reduction of the disulfide bond or mutation of both cysteine residues had only a marginal impact on protein stability. ...

14p dell39 03-04-2013 46 3   Download

Life grows almost everywhere on earth, including in extreme environments and under harsh conditions. Organisms adapted to high temperatures are called thermophiles (growth temperature 45–75C) and hyperthermophiles (growth temperature ‡80C). Proteins from such organisms usually show extreme thermal stability, despite having folded structures very similar to their mesostable counterparts.

11p media19 04-03-2013 53 3   Download

Post-translational glycosylation is one of the most abundant forms of cova-lent protein modification in eukaryotic cells. It plays an important role in determining the properties of proteins, and stabilizes many proteins against thermal denaturation. Protein glycosylation may establish a surface micro-environment that resembles that of unglycosylated proteins in concentrated solutions of sugars and other polyols.

9p mobifone23 21-01-2013 47 4   Download