In statistics and probability theory , a pointprocess is a type of random process for which any one ... general spaces. For example, the occurrence of lightning strikes might be considered as a pointprocess ..., Trades and Quotes A Bivariate PointProcess . Journal of Financial Econometrics Vol. 1, No. 2, pp ... process can be described completely by the random intervals between the points. These point processes ... wide web . General pointprocess theory In mathematics, a pointprocess is a random element whose .... br A pointprocess on S is a measurable map math xi Omega to mathfrak N math from a probability space ..., a pointprocess is a special case of a random measure . The most common example for the state ... needed date June 2007 that the term pointprocess is not a very good one if S is not a subset of the real ... and uncontested even in the general case. Representation Every pointprocess can be represented ... d math , then the pointprocess is known as simple . Expectation measure The expectation measure E also known as mean measure of a pointprocess is a measure on S that assigns to every Borel subset ... measures The math n math th power of a pointprocess, math xi n, math is defined on the product space ... measure. Let math S mathbb R d math . The joint intensities of a pointprocess math xi math w.r.t. .... ref name DVJ88 Stationarity A pointprocess math xi subset mathbb R d math is said to be stationary ... R d. math For a stationary pointprocess, the mean measure math E xi . lambda . math for some ... math is called the intensity of the pointprocess. A stationary pointprocess on math mathbb R ... in math mathbb R d. math Poisson pointprocess The simplest and ubiquitous example of a pointprocess is the Poisson pointprocess , which is a spatial generalisation of the Poisson process . A Poisson ... intervals are independent and have a Poisson distribution . A Poisson pointprocess can also be defined using these two properties. Namely, we say that a pointprocess math xi math is a Poisson ... more details
In mathematics , a determinantal pointprocess is a stochastic process stochastic pointprocess , the probability distribution of which is characterized as a determinant of some function. Such processes arise as important tools in random matrix theory, combinatorics , and physics . cn date October 2011 Definition Let math Lambda math be a locally compact Polish space and math mu math be a Radon measure on math Lambda math . Also, consider a measurable function K sup 2 sup . We say that math X math is a determinantal pointprocess on math Lambda math with kernel math K math if it is a simple pointprocess on math Lambda math with pointprocess Moment measures joint intensities given by math rho n x 1, ldots,x n det K x i,x j 1 le i,j le n math for every n 1 and x sub 1 sub , . . . , x sub n sub . ref name GAF Hough, J. B., Krishnapur, M., Peres, Y., and Vir g, B., Zeros of Gaussian analytic functions and determinantal point processes. University Lecture Series, 51. American Mathematical Society, Providence, RI, 2009. ref Properties Existence The following two conditions are necessary and sufficient for the existence of a determinantal random pointprocess with intensities ... unitary ensemble GUE form a determinantal pointprocess on math mathbb R math with kernel math ... increasing subsequence of a random permutation. The pointprocess corresponding to a random Young diagram, expressed in modified Frobenius coordinates, is a determinantal pointprocess on clarify ... defined determinantal pointprocess with non Hermitian function Hermitian kernel although its ... pointprocess on E , with kernel math K e,f langle I e,I f rangle , quad e,f in E math . ref name GAF References Reflist Category Point processes ... text for all k, x i i 1 k math ref name Soshniko A. Soshnikov, Determinantal random point fields ... of a determinantal random process with joint intensities sub k sub is math sum k 0 infty left ... more details
The Process may refer to The Process , A Rock Reggae group from Detroit featuring members of George Clinton s P Funk All Stars. The Process has worked with producer Adrian Sherwood, Little Axe, Ghetto Priest and Congo Natty aka Rebel MC. The Process Brave Combo album The Process Brave Combo album , a 2000 album by Brave Combo The Process Play N Skillz album The Process Play N Skillz album , a 2004 album by rap group Play N Skillz The Process Memphis Bleek album The Process Memphis Bleek album , upcoming album by rapper Memphis Bleek The Process Skinny Puppy album The Process Skinny Puppy album , a 1996 album by industrial band Skinny Puppy The Process collective , an art and philosophy collective formed in the early 1990s The Process novel The Process novel , by Brion Gysin The Process Church of The Final Judgment , a religious group that flourished in the 1960s and 1970s The MacGuffin from the film The Spanish Prisoner See also The Trial by Franz Kafka in German Der Process disambig ... more details
Wiktionary process processes processing Process or processing may refer to TOCright Process philosophy , unifying principles which operate in many different systemic contexts Process haircut, which uses a Relaxer chemical agent to straighten hair Science and technology Process engineering , in the article ... characterized by parameters and constraints Systems engineering process , a process for applying systems engineering techniques to the development of systems Process science , a method ... Chemical process , a method or means of changing one or more chemicals or chemical compounds Thermodynamic process , the energetic evolution of a thermodynamic system Process control , a statistics and engineering discipline that deals with controlling the output of processes Process theory , the scientific study of processes Stochastic process , in probability theory, a random process, as contrasted to a deterministic process Method patent Process patent , usually refers to a manufacturing process Food processing , transforming raw ingredients into food Information processing , change processing of information detectable by an observer Process Manufacturing , manufacturing concerned ... values Process ontology , a description of the components and their relationships that make up a process Computers Process computing , a computer program or an instance of a program running concurrently with other programs Process group , in POSIX conformant operating systems, a collection of one or more ... Process anatomy , a projection or outgrowth of tissue from a larger body Biological process , a process of a living organism Cognitive process , the process of thought Mental process , functions or processes ..., calcining, or other means Business Business process , activities or tasks that produce a specific service or product for customers Industrial process , a procedure involving chemical or mechanical steps to aid in the manufacture of an item or items Business process mapping , activities involved ... more details
The S process or slow neutron slow neutron capture process is a nucleosynthesis process that occurs at relatively ... beta decay beta minus decay . In the S process, a stable isotope captures a neutron, but the radioactive .... This process produces stable isotopes by moving along the valley of beta decay stable isobars in the table of nuclides chart of isotopes . The S process produces approximately half of the isotopes ... galactic chemical evolution . The S process differs from the more rapid R process of neutron capture by its slow rate of neutron captures. History The S process was seen to be needed from the relative ... a matter of determining what other nuclei could be accounted for by such a process. A table apportioning the heavy isotopes between S process and R process was published in the famous B2FH ... There it was also argued that the S process occurs in red giant stars. In a particularly illustrative ... fluence could account for the observed S process abundances, but that a wide range of fluences is required ... neutron fluence as a function of the number of iron seed so exposed became the standard model of the S process ... title S process studies in the light of new experimental cross sections journal Astrophysical Journal .... These placed the S process on the firm quantitative basis that it enjoys today. The S process in stars The S process is believed to occur mostly in Asymptotic Giant Branch stars. In contrast to the R process which is believed to occur over time scales of seconds in explosive environments, the S process is believed to occur over time scales of thousands of years. The extent to which the s process ... link yes Neutron Image S process elem Ag to Sb.svg thumb right 400 px The S process acting in the range from silver Ag to antimony Sb . One distinguishes the main and the weak s process ... ref The weak component of the S process, on the other hand, synthesizes S process element S process ... those s isotopes into interstellar space. The S process is often mathematically treated using the so ... more details
about the engineering indicator the mathematical concept used in thermodynamics process function A process variable , process value or process parameter is the current status of a process under control. An example of this would be the temperature of a furnace. The current temperature is called the process variable, while the desired temperature is known as the setpoint control system set point . Measurement of process variables are important in controlling a process. The process variable is a dynamic feature of the process which may change rapidly. Accurate measurement of process variables is important for the maintenance of accuracy in a process. There are four commonly measured variables which affect chemical and physical process pressure , Thermodynamic temperature temperature , level and flow. cn date December 2011 Tech stub DEFAULTSORT Process Variable Category Control theory ... more details
Please do not remove or change this AfD message until the issue is settled Article for deletion dated page Process Hacker timestamp 20120501124451 year 2012 month May day 1 substed yes For administrator use only Old AfD multi page Process Hacker date 1 May 2012 result keep End of AfD message, feel free to edit beyond this point Process Hacker is a software that can terminate Process computing process that can t be terminated by Windows Task Manager . It can be used to find some hidden process, such as rootkit . External link http processhacker.sourceforge.net Process Hacker website computing stub Category Software ... more details
In probability theory , a Cox process also known as a doubly stochastic Poisson process or mixed Poisson process is a stochastic process which is a generalization of a Poisson process where the time dependent intensity t is itself a stochastic process. The process is named after the statistician David Cox statistician David Cox , who first published the model in 1955. ref cite jstor 2983950 ref Cox processes are used to generate simulations of spike train s the sequence of action potentials generated by a neuron , ref cite doi 10.1162 neco.2009.08 08 847 ref and also in financial mathematics where they produce a useful framework for modeling prices of financial instruments in which credit risk is a significant factor. ref cite doi 10.1007 BF01531332 ref See also Poisson hidden Markov model Doubly stochastic model Non homogeneous Poisson process , where t is restricted to a deterministic function References Reflist Cox, D. R. and Isham, V. Point Processes , London Chapman & Hall, 1980 ISBN 0 412 21910 7 Donald L. Snyder and Michael I. Miller Random Point Processes in Time and Space Springer Verlag, 1991 ISBN 0 387 97577 2 New York ISBN 3 540 97577 2 Berlin DEFAULTSORT Cox Process statistics stub Category Poisson processes de Gemischte Poisson Verteilung fr Processus de Cox ... more details
Unreferenced stub auto yes date December 2009 An orphan process is a process computing computer process whose parent process has finished or exit operating system terminated , though itself remains running. In a Unix like operating system any orphaned process will be immediately adopted by the special init system process. This operation is called re parenting and occurs automatically. Even though technically the process has the init process as its parent, it is still called an orphan process since the process that originally created it no longer exists. A process can be orphaned unintentionally, such as when the parent process terminates or crashes. The process group mechanism in most Unix like operation systems can be used to help protect against accidental orphaning, where in coordination with the user s Unix shell shell will try to terminate all the child processes with the SIGHUP process signal, rather than letting them continue to run as orphans. A process may also be intentionally orphaned so that it becomes detached from the user s session and left running in the background usually to allow a long running job to complete without further user attention, or to start an indefinitely ... , a server process is also said to be orphaned when the client that initiated the request unexpectedly crashes after making the request while leaving the server process running. These orphaned ... there are several solutions to the orphan process problem Extermination is the most commonly used technique ... try to locate the parents of any remote computations at which point orphaned processes are killed. Expiration is a technique where each process is allotted a certain amount of time to finish before being killed. If need be a process may ask for more time to finish before the allotted time expires. See also Zombie process Daemon computer software Daemon process DEFAULTSORT Orphan Process Category Process computing Comp sci stub it Processo orfano lt Pamestas procesas ru ... more details
In organization development , a process consultant is a specialized type of consultant who acts as a facilitator to help groups deal with issues involving the Group processprocess in a meeting , rather than the tasks. Role in Small Group Development A process consultant may be used at any time during the Stages of Group Development . Occasionally, a process consultant is used when a group is either in its formative stage, or normative stage. However, more often than not, they participate when the group is in wikt conflict conflict . Role in Conflict Resolution Often a group finds itself in conflict over fact s, Goal management goals , Scientific method methods or Value personal and cultural values . It is the role of the process consultant to help the group reach consensus over the type of conflict it faces. Once the type of conflict is identified, the process consultant then helps the group work through the steps required to break the impasse. It is important to note that the process consultant s role is not to solve the problem, but to help the group solve its own problem. The reason for this is because it is the group, not the consultant who will have to live with the Consequentialism consequences of its decision. Role in Conflict Management Occasionally, due to the nature of conflict, the process consultant may need to guide the group toward conflict management rather than conflict resolution . Techniques Used Initially a process consultant will not lead or participate in a group meeting, but rather will act as an observation observer . During this time, they observe the group dynamics to determine what interpersonal relationships may contribute to the group s issues. At some point, s he will begin to actively participate in the meeting, by asking clarifying questions ... Block, Peter 1981 , Flawless Consulting, University Associates, Inc Schein, Edgar, Process Consultation Category Process management Category Conflict process Category Consulting occupations ... more details
at any one point of the system s execution for example, in a one processor system, only one process ...citations missing date February 2011 In a computer multitasking multitasking computer system, process ... they are a useful abstraction for the understanding of processes. Image Process states.svg right 400px thumb The various process states, displayed in a state diagram , with arrows indicating possible ... in secondary virtual memory. Primary process states The following typical process states are possible ... storage main memory . Created Also called New When a process is first created, it occupies the created or new state. In this state, the process awaits admission to the ready state. This admission will be approved ..., leading to an inability to meet process deadlines. Ready or waiting A ready or waiting process ..., the CPU is only capable of handling one process at a time. Processes that are ready for the CPU are kept ... queue. Running A process moves into the running state when it is chosen for execution. The process s instructions are executed by one of the CPUs or cores of the system. There is at most one running process per CPU or core. Blocked A process that is Blocking computing blocked on some event such as I O operation completion or a signal . Terminated A process may be exit operating ... killed. In either of these cases, the process moves to the terminated state. If a process is not removed from memory after entering this state, it may become a Zombie process . Additional process states ... Also called suspended and waiting . In systems that support virtual memory, a process may .... From here the process may be swapped back into the waiting state. Swapped out and blocked Also called suspended and blocked . Processes that are blocked may also be swapped out. In this event the process ... as a swapped out and waiting process although in this case, the process will move to the blocked ... chapter 3, section 3.2, process states , including figure 3.9 process state transition with suspend ... more details
The Unified Software Development Process or Unified Process is a popular iterative and incremental development iterative and incremental software development process framework. The best known and extensively documented refinement of the Unified Process is the IBM Rational Unified Process Rational Unified Process RUP . Image UnifiedProcessProjectProfile20060708.png frame right Profile of a typical project showing the relative sizes of the four phases of the Unified Process. Overview The Unified Process is not simply a process, but rather an extensible framework which should be customized for specific organizations or projects. The Rational Unified Process is, similarly, a customizable framework. As a result it is often impossible to say whether a refinement of the process was derived from UP or from RUP, and so the names tend to be used interchangeably. The name Unified Process as opposed to Rational Unified Process is generally used to describe the generic process, including those elements which are common to most refinements. The Unified Process name is also used to avoid potential issues of trademark infringement since Rational Unified Process and RUP are trademarks of IBM . The first book to describe the process was titled The Unified Software Development Process ISBN 0 201 57169 ... unaffiliated with Rational Software have published books and articles using the name Unified Process , whereas authors affiliated with Rational Software have favored the name Rational Unified Process . Unified Process Characteristics Iterative and Incremental Image Development iterative.gif frame ... of the project Software development process The Unified Process is an iterative and incremental development process. The Inception, Elaboration, Construction and Transition phases are divided into a series ... work in most of the process disciplines e.g. Requirements, Design, Implementation, Testing the relative effort and emphasis will change over the course of the project. Use Case Driven In the Unified Process ... more details
The Process Redesign methodology was developed by H. James Harrington in the early 1980s and is applied to the current process to remove all of its waste and to streamline its activities. It first streamlines ... The Process Redesign methodology consists of five phases as shown in Figure 1 below. File ... center Benefits The benefits of Process Redesign are It documents and quantifies the current process. It prepares a simulation model of the current and future state processes. It reduces cost and cycle ... customer satisfaction. It reduces internal conflict. Features The major features of Process Redesign are It boxes in the current process. It prepares a value state map for the current process ... process. It provides simplification to the current state process. It applies error proofing to the future ... elimination to the current state process. It applies cycle time reduction to the current state process ... Lean approaches to refine the future state processes Background The Process Redesign approach started ... in August 1990 ref in the early 1990s. It was first published to the general public in Business Process ... name Business Process Improvement http www.amazon.com dp 0070267685 Business Process Improvement ISBN .... Overall ProcessProcess Redesign is very different from Process Reengineering . Process Redesign operates under the concept that the current process has many good features and that the current process could be redefined and streamlined. A typical Process Redesign approach takes about 30 days to develop a future state solution. Process Reengineering operates under the belief that the current process ... a totally new process. This typically takes between nine twelve months to accomplish. Typically Process Reengineering is applied to a process when cost or cycle time needs to be improved between 60 90 . In other words, when a current process is being performed by a 100 people and to be competitive, it needs to be done by less than 40 people. Only about 10 of the process improvement activities ... more details
Infobox Bone Name PAGENAME Latin processus mastoideus ossis temporalis GraySubject 34 GrayPage 141 Image Gray1193.png Caption Side view of head, showing surface relations of bones. Mastoid process labeled near center. Image2 Processusmastoideusossistemporalis.PNG Caption2 Mastoid process Origins Insertions Articulations MeshName MeshNumber DorlandsPre p 34 DorlandsSuf 12667534 The mastoid process is a conical prominence projecting from the undersurface of the mastoid portion of the temporal bone . It is located just behind the external acoustic meatus , and lateral to the styloid process temporal styloid process . Its size and form vary somewhat it is larger in the male than in the female. The term mastoid is derived from the Greek word for breast, a reference to the shape of this bone. The temporal bone contains another protrusion, the styloid process, located in close proximity to the mastoid process. The styloid process also serves as a point of attachment for muscles and has a distinctive pointed shape akin to that of a stylus, explaining the origins of the name. This part of the skull projects from the temporal bone and is roughly pyramidal or conical in shape. One important role for this bone is as a point of attachment for several muscles the splenius capitis , longissimus capitis , digastric posterior belly, and sternocleidomastoid . These muscles are one reason the mastoid process tends to be larger in men, because men have bigger muscles as a general rule and thus require larger points of attachment. See also mastoiditis mastoidectomy External links NormanAnatomy lesson5 Gray s Cranium Category Bones of the head and neck ar de Schl fenbein Pars mastoidea es Ap fisis mastoides eo Mastoido eu Mastoide apofisi fr Masto de gl Ap fise mastoide it Processo mastoideo hu Csecsny lv ny nl Processus mastoideus ja pl Wyrostek sutkowaty pt Processo mastoide sv Mastoidutskottet th ... more details
The proximodorsal process anatomy process is a feature of the skeleton of archosaur s. It may be a pair of tabs or blade shaped flanges on the pelvis, and serves as an anchor point for the attachment of leg muscles. This process is of particular importance in the anatomy and comparative morphology of Mesozoic birds and advanced maniraptora n dinosaur s. The pelvis is made up of three paired bones and a sacrum . The three paired bones are called the ilium bone ilium , the ischium , and the pubis bone pubis . On the ischium there may be an obturator process and or a proximodorsal process. The more Primitive phyylogenetics primitive condition is for there to be no proximodorsal process, but a large obturator process . In primitive birds the ischia are complex, usually with a small or even absent obturator process and a large, rectangular, proximodorsal process extending up toward the ilium. This is the condition in Archaeopteryx , Confuciusornis , and enantiornithines . ref name Witmer2002 Witmer, Lawrence M. 2002 The Debate on Avian Ancestry Phylogeny, Function, and Fossils. pp. 3 30 in Mesozoic Birds above the heads of dinosaurs Chiappe, L.M., and Witmer, L.M. eds. University of California Press, Berkeley. ref The South American dromaeosaur s called the unenlagiinae have an intermediate condition ref name Forsteretal1998 Forster, Catherine, Sampson, Scott D., Chiappe, Luis M., Krause, David W. 1998 The Theropod Ancestry of Birds New Evidence from the Late Cretaceous of Madagascar Nature 279 1915 1919. 20 march 1998 ref between the two, with both a large obturator process and a proximodorsal process. ref name Makovickyetal2005 Makovicky, Peter J., Apestguia, Sebastian, Agnolin, Frederico L. 2005 The earliest dromaeosaurid theropod from South America Nature 437 1007 1011 13 October 2005. ref See also Epipubic bones Evolution of mammals References reflist wikt Category Paleontology Category Anatomy Category Dinosaur anatomy ... more details
In applied probability , a regenerative process is a special type of stochastic process that is defined by having a property whereby certain portions of the process can be treated as being statistically independent of each other. ref name Ross cite book title Introduction to probability models author Sheldon M. Ross isbn 0125980620 page 442 year 2007 publisher Academic Press ref This property can be used in the derivation of theoretical properties of such processes. Definition A regenerative process is a stochastic process with time points at which, from a probabilistic point of view, the process restarts itself. ref name Ross cite book title Introduction to probability models author Sheldon M. Ross isbn 0125980620 page 442 year 2007 publisher Academic Press ref These time point may themselves be determined by the evolution of the process. That is to say, the process X t , t 0 is a regenerative process if there exist time points 0 T sub 0 sub T sub 1 sub T sub 2 sub ... such that the post T sub k sub process X T sub k sub t t 0 has the same distribution as the post T sub 0 sub process X T sub 0 sub t t 0 is independent of the pre T sub k sub process X t 0 t T sub k sub for k 1. ref name haas cite book title Stochastic Petri nets modelling, stability, simulation author Peter Jay Haas isbn 0387954457 publisher Springer year 2003 page 190 ref Intuitively this means a regenerative process can be split in to independent and identically distributed i.i.d. cycles. ref cite book title Applied Probability and Queues author S ren Asmussen isbn 0387002111 publisher Springer year 2003 edition 2nd page 168 ... ref When T sub 0 sub 0, X t is called a nondelayed regenerative process . Else, the process is called a delayed regenerative process . ref name haas Notes reflist Category Stochastic ... more details
The Fourcault Process is a method of manufacturing flat glass . First developed in Belgium by mile Fourcault during the early 1900s, the process was used globally. Fourcault is an example of a vertical draw process, in that the glass is drawn against gravity in an upward direction. Gravity forces influence parts of the process. Process The Fourcault process requires a pit or drawing area and an assembly ... quality and process yields. Today most glass manufacture has a hot end where the products are made ... is taken from a liquid state into the start of the process needed to make it into flat glass. At the bottom ... temperature. The cooling process uses a device known as a canal . As the name describes a Canal ... the need for canals. Forming The Fourcault Process uses a ceramic die to shape fused or molten ... to produce the best quality of glass. The Debiteuse is the starting point of the vertical draw, where ... from the point of the Debiteuse until it is cut a ribbon . The base of ribbon is shielded from heat .... Sometimes a mild vacuum is applied to the ribbon in this early part of the process since ... parts of the process, supporting its weight and continuing the drawing process. The process continues .... When the ribbon reaches the end of the process it is scored, or cut, and then removed for further ... phases of the process are critical factors in the Fourcault process. Fourcault process machine operators require experience in order to judge placement of the die, location of various parts of the process ... quality. The draw must be stopped, the pit must be heated back and then the process can continue anew. Glass chemistry has a huge impact on the process since it controls the melting, forming and annealing temperatures, liquidous temperature point where various chemicals that make up the glass .... Occasionally the ribbon will break or crack, leading to failure of the drawing process. Such breaks ... quality uses. Due to process instabilities Fourcault process glass can have waves, seeds small ... more details
Wikify date January 2012 refimprove date November 2008 Process flowsheeting is the use of computer aids to perform steady state heat and mass balancing, sizing and costing calculations for a chemical process. The process design effort may be split into three basic steps synthesis analysis and optimization. Synthesis is the step where the structure of the flowsheet is chosen. It is also in this step that one initializes values for variables which one is free to set. Analysis is usually made up of three steps solving heat and material balances sizing and costing the equipment and evaluating the economic worth, safety, operability etc. of the chosen flow sheet Optimization involves both structural optimization of the flow sheet itself as well as optimization of parameters in a given flowsheet ... . Parameter Optimization is a more advanced stage of theory than process flowsheet optimization. The Plant Design Project. The first step in the sequence leading to the construction of a process plant and its use in the manufacture of a product is the conception of a process. The concept of a process is embodied in the form of a flow sheet . Process design then proceeds on the basis of the flow sheet chosen. Physical property data are the other component needed for process design apart from a flow sheet. The result of process design is a process flow diagram , PFD. Detailed engineering for the project and vessel specifications then begin. Process flowsheeting ends at the point of generation of a suitable PFD. ref cite book last Westerberg first A. W. title Process Flowsheeting year ...., Hutchinson H. P., Motard R. L., and Winter P., 1979 , Process Flowsheeting , Cambridge Universities Press, ISBN 0 521 22043 2 Veverka V. V., and Madron, F. 1997 , Material and Energy balancing in the Process Industries , Elsevier, ISBN 0 444 82409 x Babu, B. V. 2004 , Process Plant Simulation ... Unit operations Category Unit processes Category Process management ... more details
April title End Point of the rp Process on Accreting Neutron Stars journal Physical Review Letters ...The rp process rapid proton capture process consists of consecutive proton captures onto Seed nucleus seed nuclei to produce heavier elements. ref Lars Bildsten, http arxiv.org abs astro ph 9709094v1 Thermonuclear Burning on Rapidly Accreting Neutron Stars in The Many Faces of Neutron Stars, ed. R. Buccheri, J. van Paradijs, & M. A. Alpar Kluwer , 419 1998 ref It is a nucleosynthesis process and, along with the S process s process and the R process r process , may be responsible for the generation of many of the heavy elements present in the universe. However, it is notably different from the other processes mentioned in that it occurs on the proton rich side of stability as opposed to on the neutron rich side of stability. The end point of the rp process the highest mass element it can create is not yet well established, but recent research has indicated that in neutron stars it cannot progress beyond tellurium . ref cite journal last Schatz first H. coauthors A. Aprahamian, V. Barnard ... arxiv astro ph 0102418 ref The rp process is inhibited by alpha decay , which puts an upper limit on the end point at tellurium sup 105 sup Te , the lightest observed alpha decaying nuclide, ref ... lighter isotopes of tellurium could potentially be proton bound and alpha decaying. Conditions The process ... is also a prerequisite due to the large proton flux needed. The seed nuclei needed for this process ... proton capture in the rp process will compete with ,p reactions, as most environments with a high flux of hydrogen are also rich in helium. The time scale for the rp process is set by sup sup decays ... for the rp process are Accretion astrophysics accreting binary systems where one star is a compact ... rises, becoming high enough for the rp process to occur. While the initial flash of hydrogen and helium lasts only a second, the rp process typically takes up to 100 seconds. Therefore, the rp process ... more details
In mathematics , a Bessel process , named after Friedrich Bessel , Why is it named after him? is a type of stochastic process . The Bessel process of order n is the real number real valued process X given by math X t W t , math where · denotes the Norm mathematics Euclidean norm Euclidean norm in R sup n sup and W is an n dimensional Wiener process Brownian motion started from the origin. The Bessel process of order n is the solution to the stochastic differential equation math dX t dZ t frac n 1 2 frac dt X t math where Z is a 1 dimensional Wiener process Brownian motion . Note that this SDE makes sense for any real parameter math n math although the drift term is singular at zero . Since W was assumed to have started from the origin the initial condition is X sub 0 sub 0. For n &ge 2, the n dimensional Wiener process is Markov chain Recurrence transient from its starting point almost surely with probability one , X sub t sub > 0 for all t > 0. It is, however, neighbourhood recurrent for n 2, meaning that with probability 1, for any r 0, there are arbitrarily large t with X sub t sub r on the other hand, it is truly transient for n 2, meaning that X sub t sub &ge r for all t sufficiently large. A notation for the Bessel process of order n started at zero is BES sub 0 sub n . References cite book author ksendal, Bernt title Stochastic Differential Equations An Introduction with Applications publisher Springer, Berlin year 2003 isbn 3 540 04758 1 Williams D. 1979 Diffusions, Markov Processes and Martingales, Volume 1 Foundations. Wiley. ISBN 0 471 99705 6. Category Stochastic processes probability stub ... more details
Distinguish peer to peer Point to point or point to point may refer to Computing Point to point construction , an electronics assembly technique Point to point network topology Point to Point Protocol PPP , part of the Internet protocol suite SAN Point to Point , a topology used in Fibre Channel Others Point to point telecommunications , a telecommunications link connecting two nodes Point to point transit , a route structure common among low fare airlines Point to point steeplechase disambig de Direktverbindung ... more details
A process agent law agent is a representative upon whom court papers may be served. They typically represent carriers or freight forwarder s, as a process agent can act to serve as a point of contact and a legal address for contract purposes in a country where the actual entity does not have an office. In the United States U.S. , every motor carrier registered with the Federal Motor Carrier Safety Administration FMCSA must have an agent for each state. Consequently, commercial firms can act as a process agent in any state for a fee to comply with the regulation. Under English court procedure rules, it is necessary to serve papers to start proceedings correctly. If a party does not have an address within England, the procedure for serving these papers is lengthy and complicated. It is therefore customary to appoint a process agent and agree that service at the address of the agent will constitute proper service for the purpose of the court procedural requirements. A process agent will also receive any documentation if a company has any legal action brought towards them. In the United States U.S. , Process agent is more commonly referred to as agent for service of process, registered agent or registered agent for service of process , and occasionally as resident agent . The role of a process agent is a vitally important service for many businesses dealing with suppliers or tenders in the UK. Process agents accept service of notices, proceedings or documents on behalf of their overseas ... to be served abroad. A process agent can act in a broad capacity for this company including but not limited to acting as a process agent for court actions, receiving documents in connection with arbitration .... A typical example of a process agency arrangement is where an overseas entity raises a loan from a city institution. Immediately the lending bank will require the appointment of a UK based process ... administrative services process agent.aspx Global professional provider TMF Group Category Agency law ... more details
schools of thought about what a defined process is. School of thought 1 There are two major approaches to controlling any process The defined process control model. The empirical processprocess control model empirical process control model. The defined process control model requires that every ... every time. A defined process can be started and allowed to run until completion, with the same .... We can view the output of a process as deterministic or stochastic. In a deterministic process the outputs are 100 percent determined by the inputs. In a stochastic process the output is a random ... do not exist, except in academia and thought experiments. All industrial process control systems ... to vary process inputs to control certain important measures of output within a useful control range .... We do not believe that the lowest possible variance is the most desirable operating point. It is useful to make a distinction between whether a process is fully determined and whether its output is fully determined. Although many people have a tendency to assume a defined process will produce a deterministic output, this is not always true a precisely defined process can still produce an output that is random. For example, the process for obtaining and summing the results of flips of a fair ... determined since I have a fully defined process. For example, I could define this process such that there is a zero ... with great precision. Thus, just because the output of a process is stochastic, and described by a random variable, does not mean that it is unpredictable. This is a rather important point because ... way to control a stochastic process. If we conclude it is economically advantageous to make a system ..., use feedback. Furthermore, I do not believe that there are two triads defined process, fully determined output, use no feedback and undefined process, unpredictable output, use feedback. I consider it more useful to treat these attributes as three distinct dimensions 1. The degree of process definition ... more details
Tone date August 2011 In computing, a process is an Object computer science instance of a computer program ... system OS , a process may be made up of multiple thread computer science threads of execution ... 0 13 101908 2 chapter 2 The Process and the Kernel ref A computer program is a passive collection of instructions a process is the actual execution of those instructions. Several processes may be associated ... means more than one process is being executed. Computer multitasking Multitasking is a method to allow ... . For security and reliability reasons most modern operating system s prevent direct inter process ... inter process communication functionality. Representation In general, a computer system process ..., process specific data input and output , a call stack to keep track of active subroutines and or other ... during run time. Operating system descriptors of resources that are allocated to the process, such as file ... sources and sinks. Computer security Security attributes, such as the process owner and the process .... The state is typically stored in computer registers when the process is executing, and in memory otherwise ... in data structures called process control block s. Any subset of resource, but typically at least the processor state, may be associated with each of the process Thread computer science threads in operating ... system may also provide mechanisms for inter process communication to enable processes to interact in safe and predictable ways. Expand section date February 2007 Process management in multi tasking operating systems Main Process management computing A Computer multitasking multitasking operating ... process can be executing at any one time on a single core Central processing unit CPU unless using ... to associate a single process with a main program, and daughter child processes with any spin off, parallel processes, which behave like asynchronous subroutines. A process is said to own resources, of which ... at the same location in memory but each process is said to own its own image of the program. Processes ... more details
In probability theory , a Poisson process is a stochastic process which counts the number of events ref ... times. The process is named after the French mathematician Sim on Denis Poisson and is a good model ... 10.1109 90.649565 ref , among many other phenomena. The Poisson process is a continuous time process the sum of a Bernoulli process can be thought of as its discrete time counterpart. A Poisson process is a pure birth process, the simplest example of a birth death process . It is also a pointprocess on the real half line. Definition The basic form of Poisson process, often referred to simply as the Poisson process , is a continuous time counting process N t , t 0 that possesses the following ... t a , b is uniform. Other types of Poisson process are described below. Types Homogeneous Image SampleProcess.png frame right Sample Path of a Poisson process N t The homogeneous Poisson process is one of the most well known L vy process es. This process is characterized by a rate parameter , also ... as a Poisson random variable is characterized by its scalar parameter , a homogeneous Poisson process ... or arrivals that occur per unit time. N t is a sample homogeneous Poisson process, not to be confused with a density or distribution function. Non homogeneous Main Non homogeneous Poisson process In general, the rate parameter may change over time such a process is called a non homogeneous Poisson process or inhomogeneous Poisson process. In this case, the generalized rate function is given as ... frac e lambda a,b lambda a,b k k qquad k 0,1, ldots. math A homogeneous Poisson process may be viewed ... time based Poisson process is the spatial Poisson process. In the case of a one dimension space a line the theory differs from that of a time based Poisson process only in the interpretation of the index ... e.g. R sup 2 sup or R sup 3 sup , a spatial Poisson process can be defined by the requirement that the random ... of each other. Space time A further variation on the Poisson process, the space time Poisson process ... more details
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