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Nucleosynthesis pathway
neutron-capture process, or s-process, is a series of reactions in nuclear astrophysics that occur in stars, particularly asymptotic giant branch stars. The s-process
S-process
Nucleosynthesis pathway
"heavy elements", with the other half produced largely by the s-process. The r-process synthesizes the more neutron-rich of the stable isotopes of even
R-process
Creation of chemical elements within stars
Neon-burning process Oxygen-burning process Silicon-burning process Production of elements heavier than iron: Neutron capture: The r-process The s-process Proton
Stellar_nucleosynthesis
Process of creating new atomic nuclei from existing nucleons
stellar winds and explosions. The neutron capture reactions of the r-process and s-process create heavier elements, from iron upwards. Supernova nucleosynthesis
Nucleosynthesis
Processes in astrophysics
γ-process today) or a combination of p-process and photodisintegration. Astronomy portal Physics portal p-nuclei Nucleosynthesis rp-process r-process s-process
P-process
Class of star
spectral class G to K stars whose spectra indicate an overabundance of s-process elements by the presence of singly ionized barium, Ba II, at λ 455.4 nm
Barium_star
Thermodynamic process
A polytropic process is a thermodynamic process that obeys the relation: p V n = C {\displaystyle pV^{n}=C} where p is the pressure, V is volume, n is
Polytropic_process
Type of cool giant star
bands now known to be due to s-process elements. The bands of zirconium monoxide (ZrO) are a defining feature of the S stars. The carbon stars have more
S-type_star
Stochastic process generalizing Brownian motion
t ξ ( s ) d s {\displaystyle W_{t}=\int _{0}^{t}\xi (s)\mathrm {d} s} with the white noise process ξ {\displaystyle \xi } satisfying for t , s ≥ 0 {\displaystyle
Wiener_process
Process of nucleosynthesis
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
Rp-process
Very brief sequence of nuclear fusion reactions that occur in massive stars
evolution Supernova nucleosynthesis Neutron capture: p-process r-process s-process Woosley, S.; Janka, T. (2006). "The physics of core collapse supernovae"
Silicon-burning_process
Nuclear fusion reaction
The alpha process, also known as alpha capture or the alpha ladder, is one of two classes of nuclear fusion reactions by which stars convert helium into
Alpha_process
Industrial process for ammonia production
The Haber process, also called the Haber–Bosch process, is the main industrial method for making ammonia. It combines nitrogen from the air with hydrogen
Haber_process
Star whose atmosphere contains more carbon than oxygen
dramatically changing the layers' composition. In addition to carbon, S-process elements such as barium, technetium, and zirconium are formed in the shell
Carbon_star
This list of Intel processors by generation attempts to present all of Intel's processors from the 4-bit 4004 (1971) to the present high-end offerings
List_of_Intel_processors
Thermodynamic process that is reversible and adiabatic
a process which is both adiabatic and reversible. The second law of thermodynamics states that T surr d S ≥ δ Q , {\displaystyle T_{\text{surr}}dS\geq
Isentropic_process
Chemical element with atomic number 82 (Pb)
repetitive neutron capture processes occurring in stars. The two main modes of capture are the s- and r-processes. In the s-process (s is for "slow"), captures
Lead
Collection of random variables
probability theory and related fields a stochastic (/stəˈkæstɪk/) or random process is a mathematical object usually defined as a family of random variables
Stochastic_process
Set of isotopes in nuclear astrophysics
selenium and mercury inclusive which cannot be produced in either the s- or the r-process. The classical, ground-breaking works of Burbidge, Burbidge, Fowler
P-nuclei
Set of nuclear fusion reactions
Oxygen-burning is preceded by the neon-burning process and succeeded by the silicon-burning process. As the neon-burning process ends, the core of the star contracts
Oxygen-burning_process
Comparatively high abundance of elements with atomic numbers near iron
Some heavier elements are produced by less efficient processes such as the r-process and s-process. Elements with atomic numbers close to iron are produced
Iron_peak
Form of computer memory
in speed of processor and the lagging speed of main memory access. Solid-state drives have continued to increase in speed, from ~400 Mbit/s via SATA3 in
Random-access_memory
Steel production method
The Bessemer process was the first inexpensive industrial process for the mass production of steel from molten pig iron before the development of the open
Bessemer_process
Statistical model
In probability theory and statistics, a Gaussian process is a stochastic process (a collection of random variables indexed by time or space), such that
Gaussian_process
N(t)-N(s)} is the number of events occurred during the interval ( s , t ] . {\displaystyle (s,t].} Examples of counting processes include Poisson processes and
Counting_process
Natural nuclear reactions forming chemical elements
Cosmic ray spallation, also known as the x-process, is a set of naturally occurring nuclear reactions causing nucleosynthesis; it refers to the formation
Cosmic_ray_spallation
Type of material
two main modes of this repetitive capture being the s-process and the r-process. In the s-process ("s" stands for "slow"), singular captures are separated
Metal
Nuclear fusion type found in older stars
present in tiny amounts in most stars, to form even heavier isotopes in the s-process. The fourth reaction might be expected to be the most common from its
Carbon-burning_process
Atomic nuclear process
elements. In stars it can proceed in two ways: as a rapid process (r-process) or a slow process (s-process). Nuclei of masses greater than 56 cannot be formed
Neutron_capture
Orthonormalization of a set of vectors
product. The Gram–Schmidt process takes a finite, linearly independent set of vectors S = { v 1 , … , v k } {\displaystyle S=\{\mathbf {v} _{1},\ldots
Gram–Schmidt_process
American horror anthology franchise
V/H/S is an American horror anthology franchise that includes nine found footage films, two spin-off films, and one short-form web miniseries. Based on
V/H/S_(franchise)
Thermodynamic process absorbing energy from its surroundings
endothermic process is a chemical or physical process that absorbs heat from its surroundings. In terms of thermodynamics, it is a thermodynamic process with
Endothermic_process
Thermodynamic process in which no mass or heat is exchanged with surroundings
An adiabatic process (adiabatic from Ancient Greek ἀδιάβατος (adiábatos) 'impassable') is a type of thermodynamic process that occurs without transferring
Adiabatic_process
Change in matter of constant composition, usually involving other such matters
process is a method intended to be used in manufacturing or on an industrial scale (see Industrial process) to change the composition of chemical(s)
Chemical_process
Type of random mathematical object
that: (i) the point process is simple, (ii) has no fixed atoms, and (iii) is a.s. boundedly finite are required. A Poisson point process is characterized
Poisson_point_process
having stocks that are included in the S&P MidCap 400 (S&P 400) stock market index. The index, maintained by S&P Dow Jones Indices, comprises the common
List_of_S&P_400_companies
Early stage in the process of star formation
mass from its parent molecular cloud. It is the earliest phase in the process of stellar evolution. For a low-mass star (i.e. that of the Sun or lower)
Protostar
Solution to a stochastic differential equation
statistics, diffusion processes are a class of continuous-time Markov process with almost surely continuous sample paths. Diffusion processes are stochastic
Diffusion_process
Stochastic process modeling random walk with friction
In mathematics, the Ornstein–Uhlenbeck process is a stochastic process with applications in financial mathematics, the physical sciences, and evolutionary
Ornstein–Uhlenbeck_process
Process to extract and purify nickel
Mond process, sometimes known as the carbonyl process, is a technique created by Ludwig Mond in 1890, to extract and purify nickel. The process was used
Mond_process
Chemical process for producing nitric acid
The Ostwald process is a chemical process used for making nitric acid (HNO3). The Ostwald process is a mainstay of the modern chemical industry, and it
Ostwald_process
Thermodynamic operation
In thermodynamics, a spontaneous process is a process which occurs without any external input to the system. A more technical definition is the time-evolution
Spontaneous_process
Work-flow to fulfil an order
element of order fulfillment. Order processing operations or facilities are commonly called “distribution centers” or “DC 's”. There are wide variances in the
Order_processing
Random process independent of past history
probability theory and statistics, a Markov chain or Markov process is a stochastic process describing a sequence of possible events in which the probability
Markov_chain
Tesla, Inc. factory
complete the assembly process. The alternating current induction motor used in vehicles are built by Tesla. The motors used in the Model S and X are built in-house
Tesla_Fremont_Factory
Transformation of a nuclide to another
In nuclear physics and nuclear chemistry, a nuclear reaction is a process in which two nuclei, or a nucleus and an external subatomic particle, collide
Nuclear_reaction
Thermodynamic process in which temperature remains constant
An isothermal process is a type of thermodynamic process in which the temperature T of a system remains constant: ΔT = 0. This typically occurs when a
Isothermal_process
Specialized electronic circuit that accelerates graphics
would be offerings from SiS and VIA circa 2004. However, modern integrated graphics processors such as AMD Accelerated Processing Units and Intel Graphics
Graphics_processing_unit
Mathematical model for sequential decision making under uncertainty
( s ) := ∑ s ′ P π ( s ) ( s , s ′ ) ( R π ( s ) ( s , s ′ ) + γ V ( s ′ ) ) {\displaystyle V(s):=\sum _{s'}P_{\pi (s)}(s,s')\left(R_{\pi (s)}(s,s')+\gamma
Markov_decision_process
Reaction that combines atomic nuclei
produced in non-fusion processes: the s-process, r-process, and the variety of processes that can produce p-nuclei. Such processes occur in giant star shells
Nuclear_fusion
Star with an overabundance of lead
of the elements lead and bismuth as compared to other products of the S-process. Many of these lead stars have more lead in them than any other element
Lead_star
Graph relating temperature and entropy during a thermodynamic process or cycle
temperature–entropy (T–s) diagram is a thermodynamic diagram used to visualize changes to temperature (T ) and specific entropy (s) during a thermodynamic process or cycle
Temperature–entropy_diagram
Grouping of evolved cool luminous stars
the surface composition, in a process referred to as dredge-up. Because of this dredge-up, AGB stars may show s-process elements in their spectra and
Asymptotic_giant_branch
Production of the elements in a supernova explosion
notably, the proton capture process known as the rp-process, the slow capture of neutrons (s-process) in the helium-burning shells and in the carbon-burning
Supernova_nucleosynthesis
List of companies in the S&P 500
The S&P 500 is a stock market index maintained by S&P Dow Jones Indices. It comprises 503 common stocks which are issued by 500 companies with large market
List_of_S&P_500_companies
July 9, 2026. Retrieved July 24, 2026. "Midera Food Processing and Centrus Energy Set to Join S&P SmallCap 600" (PDF). July 2, 2026. Retrieved July 10
List_of_S&P_600_companies
Industrial process producing titanium
salt from the product. TiCl4(g) + 4 Na(l) → 4 NaCl(l) + Ti(s) Prior to the Hunter process, all efforts to produce Ti metal afforded highly impure material
Hunter_process
Isotope of bismuth
nihonium. In the red giant stars of the asymptotic giant branch, the s-process (slow process) is ongoing to produce bismuth-209 and polonium-210 by neutron
Bismuth-209
Thermodynamic process of a closed system in which volume remains constant
an isochoric process, also called a constant-volume process, an isovolumetric process, or an isometric process, is a thermodynamic process during which
Isochoric_process
Integrated business management process
Sales and operations planning (S&OP) is a business management planning process that integrates demand forecasting with supply planning to create a plan
Sales_and_operations_planning
Central computer component that executes instructions
A central processing unit (CPU), also known as a central processor, main processor, or simply processor, is the primary processor in a given computer
Central_processing_unit
Random set of points on a space with random number and random position
_{\omega }} is a locally finite measure over S {\displaystyle S} . Now, by a point process on S {\displaystyle S} we simply mean an integer-valued random
Point_process
Planetary nebula in the constellation Circinus
be a member of a binary system. The nebula does not show enrichment of s-process elements. This suggests that the star's asymptotic giant branch stage
NGC_5315
Industrial process for electrolysis of sodium chloride
The chloralkali process (also chlor-alkali and chlor alkali) is an industrial process for the electrolysis of sodium chloride (NaCl) solutions. It is
Chloralkali_process
Term used for certain metallic elements
two main modes of this repetitive capture being the s-process and the r-process. In the s-process ("s" stands for "slow"), singular captures are separated
Heavy_metals
Field of physics that studies atomic interactions
created by either a slow neutron capture process (the so-called s-process) or the rapid, or r-process. The s process occurs in thermally pulsing stars (called
Nuclear_physics
Method for production of sodium carbonate
process or ammonia–soda process is the major industrial process for the production of sodium carbonate (soda ash, Na2CO3). The ammonia–soda process was
Solvay_process
Type of celestial body
hydrogen and helium fusing shells via the slow neutron capture process; the s-process. The materials are then brought to the surface via deep convection
Technetium_star
Industrial method of sulfuric acid production
The contact process is a method for manufacturing sulfuric acid in the high concentrations needed for industrial processes. Platinum was originally used
Contact_process
Home video game consoles
Series S is comparable in its hardware to the Xbox Series X, similar to how the Xbox One S relates to the Xbox One X, but has less processing power. While
Xbox_Series_X_and_Series_S
Structural design of general process systems
exist. A process system is a specialized system of processes. Processes are composed of processes. Complex processes are made up of several processes that
Process_architecture
Process in which there is a positive flow of energy from the system to the surroundings
exergonic process is one which there is a positive flow of energy from the system to the surroundings. This is in contrast with an endergonic process. Constant
Exergonic_process
Data mining technique using event logs
result in models describing processes of organizations. Event log analysis can also be used to compare event logs with prior model(s) to understand whether
Process_mining
Study of making products from raw materials
Process engineering is a field of study focused on the development and optimization of industrial processes. It consists of the understanding and application
Process_engineering
Family of approaches for modelling concurrent systems
science, the process calculi (or process algebras) are a diverse family of related approaches for formally modelling concurrent systems. Process calculi provide
Process_calculus
Chemically peculiar stars
tenth that in the Sun. These are further categorized by whether r-process or s-process elements are enhanced. CEMP-no stars have no enhancement. Some of
CEMP_star
Stochastic process in probability theory
In probability theory, a Lévy process, named after the French mathematician Paul Lévy, is a stochastic process with independent, stationary increments:
Lévy_process
Dust floating in space
pure S-process isotopes, fitting their condensation within AGB star red giant winds inasmuch as the AGB stars are the main source of S-process nucleosynthesis
Cosmic_dust
Plan for the construction of an object or system
A design is the concept or proposal for an object, process, or system. The word design refers to something that is or has been intentionally created by
Design
Stage in the evolution of some stars
and the s-process products to the surface, increasing the abundance of carbon relative to oxygen; in some larger stars this is the process that turns
Dredge-up
Thermodynamic process that releases energy to its surroundings
thermodynamics, an exothermic process (from Ancient Greek έξω (éxō) 'outward' and θερμικός (thermikós) 'thermal') is a thermodynamic process or reaction that releases
Exothermic_process
moderator Arthur R. Miller of Harvard Law School. H5’s proprietary automated document review process is a hybrid approach that relies on both human subject
H5_(US_company)
Chemical element with atomic number 19 (K)
explosive stage of the nova. 40 K is also formed in s-process nucleosynthesis and the neon burning process. Potassium is the 20th most abundant element in
Potassium
Unusually strong cyano radical bands in star
Roman in 1952. They can be distinguished from barium stars by the lack of s-process elements, and from other types of luminous stars by the general weakness
CN_star
related fields, the geometric process is a counting process, introduced by Lam in 1988. It is defined as The geometric process. Given a sequence of non-negative
Geometric_process
Process of converting wood into wood pulp
The process entails several steps, both chemical and mechanical,[not verified in body] and it is the predominant process globally and within the U.S. for
Kraft_process
Star in the Boötes constellation
that the s-process has made no contribution to the material present in the star: in HD 122563, all these elements are products of the r-process instead
HD_122563
Food product
applied for the first U.S. patent covering a new method of storing cheese, which halts the maturation process by sterilization. Processed cheese has several
Processed_cheese
Requirement that courts respect all legal rights owed to people
Due process of law is application by the state of all legal rules and principles pertaining to a case so all legal rights that are owed to a person are
Due_process
Systematic collection of tasks within a business
A business process, business method, or business function is a collection of related, structured activities or tasks performed by people or equipment
Business_process
2009 Apple smartphone
Retrieved September 25, 2013. Patel, Nilay (June 10, 2009). "iPhone 3G S processor specs: 600 MHz CPU, 256 MB of RAM". Engadget. AOL. Archived from the
IPhone_3GS
Two nucleosynthesis pathways
nucleosynthesis pathways: the r-process and the s-process, for rapid and slow neutron captures, respectively. R-process describes neutron capture in a
Neutron capture nucleosynthesis
Neutron_capture_nucleosynthesis
Field of electrical engineering
Signal processing is an electrical engineering subfield that focuses on analyzing, modifying and synthesizing signals, such as sound, images, potential
Signal_processing
Philosophical approach
Process philosophy (also ontology of becoming or processism) is an approach in philosophy that identifies processes, changes, or shifting relationships
Process_philosophy
Limiting the data rate on network controllers
or received by a network interface controller. It can be used to prevent DoS attacks and limit web scraping. Research indicates flooding rates for one
Rate_limiting
Facility at CERN with a neutron source
Two major processes that take place in stars are rapid neutron capture (r-process) and slow neutron-capture process (s-process). The s-process contributes
Neutron_Time_Of_Flight
{\displaystyle {\hat {\sigma }}} , then the process performance index is defined as: P ^ p k = min [ U S L − μ ^ 3 σ ^ , μ ^ − L S L 3 σ ^ ] {\displaystyle {\hat {P}}_{pk}=\min
Process_performance_index
Type of theology
Process theology is a type of theology developed from Alfred North Whitehead's (1861–1947) process philosophy, but most notably by Charles Hartshorne (1897–2000)
Process_theology
Stochastic process
probability theory relating to stochastic processes, a Feller process is a particular kind of Markov process. Let X {\textstyle X} be a locally compact
Feller_process
Diagram used in process engineering
A process flow diagram (PFD) is a diagram commonly used in chemical and process engineering to indicate the general flow of plant processes and equipment
Process_flow_diagram
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