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Autogenous self-healing crack. Self-healing concrete is characterized as the capability of concrete to fix its cracks on its own autogenously or autonomously. It not only seals the cracks but also partially or entirely recovers the mechanical properties of the structural elements. This kind of concrete is also known as self-repairing concrete.
Autogenous healing is the natural ability of cementitious materials to repair cracks. This ability is principally attributed to further hydration of unhydrated cement particles and carbonation of dissolved calcium hydroxide. [107] Cementitious materials in fresh-water systems can autogenously heal cracks up to 0.2 mm over a period of 7 weeks. [108]
Autotransplantation is the transplantation of organs, tissues, or even particular proteins from one part of the body to another in the same person (auto- meaning "self" in Greek [1]). The autologous tissue (also called autogenous, autogeneic, or autogenic tissue) transplanted by such a procedure is called an autograft or autotransplant.
Autologous stem-cell transplantation (also called autogenous, autogenic, or autogenic stem-cell transplantation and abbreviated auto-SCT) is the autologous transplantation of stem cells [1][2][3][4] —that is, transplantation in which stem cells (undifferentiated cells from which other cell types develop) are removed from a person, stored, and ...
Elements. The main elements that comprise the human body (including water) can be summarized as CHNOPS. About 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium.
The autoignition temperature or self-ignition temperature, often called spontaneous ignition temperature or minimum ignition temperature (or shortly ignition temperature) and formerly also known as kindling point, of a substance is the lowest temperature at which it spontaneously ignites in a normal atmosphere without an external source of ignition, such as a flame or spark. [1]
Autogenous may refer to: Autogenous tissue in autotransplantation (tissue transplanted from elsewhere in an individual's own body) Autogenous weld, using no filler metal; Autogenous grinding mill, in which ore grinds itself through tumbling impacts; Autogenous models for the origins of cellular features, such as membrane-bound organelles or ...
Collagen (/ ˈkɒlədʒən /) is the main structural protein in the extracellular matrix of a body's various connective tissues. As the main component of connective tissue, it is the most abundant protein in mammals. [1] 25% to 35% of a mammalian body's protein content is collagen.