Hormones Introduction: Hormones are chemical messengers produced by endocrine glands that are secreted into the bloodstream to regulate various physiological processes in the body. They play a crucial role in maintaining homeostasis, growth and development, metabolism, reproduction, and stress response. They act on target cells or organs that have specific receptors for these hormones. This … Read more
Evaporation vs. Boiling: Evaporation: Occurs at any temperature below the boiling point, typically at the liquid’s surface. Boiling: Occurs at a specific boiling point throughout the liquid, with bubbles forming within the liquid. Evaporation vs. Distillation: Evaporation: Primarily focuses on removing a solvent, usually without condensing the vapor. Distillation: Involves vaporizing a liquid and then … Read more
Heat Interchangers and Heat Exchangers are terms often used interchangeably, but they typically refer to the same concept: devices that transfer heat between two or more fluids. Heat Interchangers Terminology The term “heat interchanger” is less common. It typically refers to a device specifically designed for exchanging heat between process streams within an industrial setup, … Read more
Evaporation is a process where a liquid is converted into vapor, typically by heating, and then separated from the remaining liquid phase. This is widely used in various industries for concentrating solutions, drying materials, and recovering valuable substances. Objectives of Evaporation Concentration: Increasing the concentration of a solute in a solvent by removing the solvent. … Read more
Fourier’s law of heat conduction states that the rate of heat transfer through a material is proportional to the negative gradient of the temperature and the area through which the heat flows. Mathematically, it is expressed as: $\mathbf{q} = -k \nabla $ where: q is the heat flux (heat transfer per unit area per unit … Read more
Heat Transfer Mechanisms Methods Conduction in Heat Transfer Mechanisms Definition: Transfer of heat through a material without any movement of the material itself. Mechanism: Occurs due to the transfer of kinetic energy between molecules or atoms. Examples: Heat flowing through a metal rod when one end is heated. Factors: Thermal conductivity of the material, cross-sectional … Read more
Heat transfer is the movement of thermal energy from a hotter object to a cooler one via conduction, convection, or radiation. Objectives Control Temperature: Maintaining the desired temperature in industrial processes and living environments. Enhance Efficiency: Improving the efficiency of thermal systems by optimizing heat exchange. Safety: Preventing overheating or excessive cooling that could lead … Read more
Thymus is a small, lymphoid organ located in the upper anterior portion of the chest cavity, just behind the sternum. It plays a vital role in the development and maturation of T-lymphocytes (T cells), which are crucial components of the adaptive immune system. The thymus is most active during childhood and adolescence, gradually decreasing in … Read more
The pineal gland is a small, pea-shaped endocrine gland located in the brain, near the center of the brain, between the two hemispheres, tucked in a groove where the two rounded thalamic bodies join. Despite its small size, the pineal gland plays a significant role in the regulation of various body functions, especially related to … Read more
The pancreas is a vital organ that lies in the abdomen, behind the stomach and in close proximity to the duodenum. It plays a crucial role in both the digestive system and the endocrine system, making it unique in its functions and importance to overall health. Structure of Pancreas Location and Appearance: Elongated organ located … Read more
