What does the p-process stand for?
The term p-process (p for proton) is used in two ways in the scientific literature concerning the astrophysical origin of the elements (nucleosynthesis). These nuclides are called p-nuclei and their origin is still not completely understood.
What is p capture?
Proton capture is a nuclear reaction in which an atomic nucleus and one or more protons collide and merge to form a heavier nucleus. Proton capture plays an important role in the cosmic nucleosynthesis of proton rich isotopes. In stars it can proceed in two ways: as a rapid (rp-process) or a slow process (p-process).
What is the p-process nucleosynthesis?
The p-process of stellar nucleosynthesis is aimed at explaining the production of the stable neutron-deficient nuclides heavier than iron that are observed up to now in the solar system exclusively. Astrophysics and nuclear physics prospects of improvements in the p-process modeling are presented.
What are nuclei?
Nuclei are very dense and extremely small, they contains more that 99.9% of the mass of an atom and are ten thousand times smaller than an atom! The nucleus is a collection of particles called protons, which are positively charged, and neutrons, which are electrically neutral.
What is Rp cycle?
The rp-process (rapid proton capture process) consists of consecutive proton captures onto seed nuclei to produce heavier elements. It is a nucleosynthesis process and, along with the s-process and the r-process, may be responsible for the generation of many of the heavy elements present in the universe.
What is a proton-rich nucleus?
p-nuclei (p stands for proton-rich) are certain proton-rich, naturally occurring isotopes of some elements between selenium and mercury inclusive which cannot be produced in either the s- or the r-process.
Can protons merge?
When the neutron star forms, most of the protons and electrons combine together to form neutrons. A neutron is formed by an electron and a proton combining together and therefore it is neutral.
What are nuclei made of?
Atomic nuclei consist of electrically positive protons and electrically neutral neutrons. These are held together by the strongest known fundamental force, called the strong force. The nucleus makes up much less than . 01% of the volume of the atom, but typically contains more than 99.9% of the mass of the atom.
What does nuclei mean in anatomy?
In neuroanatomy, a nucleus (plural form: nuclei) is a cluster of neurons in the central nervous system, located deep within the cerebral hemispheres and brainstem. In anatomical sections, a nucleus shows up as a region of gray matter, often bordered by white matter.
What does SLS stand for in 3D printing?
Selective laser sintering
Selective laser sintering (SLS) 3D printing is trusted by engineers and manufacturers across different industries for its ability to produce strong, functional parts.
What are the advantages of RP?
Advantages of rapid prototyping
- Reduced design & development time.
- Reduced overall product development cost.
- Elimination or reduction of risk.
- Allows functionality testing.
- Improved and increased user involvement.
- Ability to evaluate human factors and ergonomics.