Academic literature on the topic 'Operations Function'

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Journal articles on the topic "Operations Function"

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Gani, Fathurrahmah Abd, Dasa Ismaimuza, and Sudarman Sudarman. "PROFIL PEMAHAMAN KONSEP SISWA DITINJAU DARI TINGKAT KEMAMPUAN MATEMATIKA PADA MATERI FUNGSI KOMPOSISI." Aksioma 9, no. 2 (September 25, 2020): 98–111. http://dx.doi.org/10.22487/aksioma.v9i2.520.

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Abstract: The aim of this research was to describe the profile of understanding the concept of class X MIA students based on the level of mathematical ability. The research was conducted at MA Alkhairaat Palu using a qualitative descriptive approach. The results of the study show that the understanding of the concept of ST in classifying the function of composition is that there is a function and operation of composition. Identify the characteristics of operations or concepts students use associative, distributive, composition operations and algebraic. Applying the concept students explain the properties and operations. Giving examples and not the composition function of the students explains the example, that there is an operation of composition and not there is no operation of the composition. Presenting the problem students presents in the form of mathematical models. Understanding the SS concept in classifying composition functions, namely a combination of functions associated with composition operations. Identify the characteristics of operations or concepts, namely the nature of distributive, operating composition and calculating algebra. Applying the concept students explain the properties and operations. Give an example and not an example of a composition function is an example is that there is a composition operation and not that there is no composition operation. Presenting problems in the form of mathematical models. Understanding the concept of SR in classifying the function of composition, namely there is a composition operation. Give an example and not an example of a composition function, is an example there is a composition operation and not an example, that is, there is no composition operation.
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FELICIANO, D., R. O??GORMAN, C. BITONDO, P. CRUSE, R. MATTHEWS, and K. MATTHEWS. "Lymphocyte Function and Abdominal Operations." Survey of Anesthesiology 32, no. 2 (April 1988): 78. http://dx.doi.org/10.1097/00132586-198804000-00010.

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Feliciano, David V. "Lymphocyte Function and Abdominal Operations." Archives of Surgery 122, no. 6 (June 1, 1987): 697. http://dx.doi.org/10.1001/archsurg.1987.01400180079015.

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Hallfeldt, Klaus K. J., Wolfram Trudo Knoefel, Olaf Thetter, Elisabeth Deubler, and Leonhard Schweiberer. "Respiratory function after thoracic operations." Annals of Thoracic Surgery 50, no. 4 (October 1990): 688. http://dx.doi.org/10.1016/0003-4975(90)90231-t.

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Shtrakov, Slavcho, and Ivo Damyanov. "On the Computational Complexity of Finite Operations." International Journal of Foundations of Computer Science 27, no. 01 (January 2016): 15–38. http://dx.doi.org/10.1142/s0129054116500027.

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The essential variables in a finite function f are defined as variables which occur in f and weigh with the values of that function. The number of essential variables is an important measure of complexity for discrete functions. When replacing some variables in a function with constants the resulting functions are called subfunctions, and when replacing all essential variables in a function with constants we obtain an implementation of this function. Such an implementation corresponds with a path in an ordered decision diagram (ODD) of the function which connects the root with a leaf of the diagram. The sets of essential variables in subfunctions of f are called separable in f. In this paper we study several properties of separable sets of variables in functions which directly affect the number of implementations and subfunctions in these functions. We define equivalence relations which classify the functions of k-valued logic into classes with the same number of: (i) implementations; (ii) subfunctions; and (iii) separable sets. These relations induce three transformation groups which are compared with the lattice of all subgroups of restricted affine group (RAG). This allows us to solve several important computational and combinatorial problems.
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Okabe, Akira, and Ryuki Matsuda. "Kronecker function rings of semistar-operations." Tsukuba Journal of Mathematics 21, no. 2 (October 1997): 529–40. http://dx.doi.org/10.21099/tkbjm/1496163256.

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Haagensen, Rolf E., Karl-Ake Sjöborg, Stig Mjelstad, Rescue man, and Petter A. Steen. "Lung Function During Hoist Rescue Operations." Prehospital and Disaster Medicine 13, no. 1 (March 1998): 65–68. http://dx.doi.org/10.1017/s1049023x00033069.

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AbstractIntroduction: A case is presented in which a 43-year-old man suffering from a severe asthma attack, had ventilatory arrest during a hoisting procedure. Based on this experience, the influence of three hoisting techniques on lung function was tested.Methods: The ventilatory capacity of 12 healthy volunteers was tested during three commonly used hoisting techniques: 1) single sling; 2) double sling; or 3) strapped to a stretcher.Results: The vital capacity (VC) and the one-second, forced expiratory volume (FEV1) were reduced significantly during all hoisting techniques compared to the standing position. The reduction was significantly more pronounced on a stretcher than in either sling position. There were no differences in the FEV1 to VC ratio between the positions.Conclusion: The small reduction in ventilatory capacity during hoisting procedures is tolerated easily by healthy individuals, but should be taken into account when planning such procedures on patients with severe pulmonary disease.
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Tamura, Keiko, Go Urakawa, and Haruo Hayashi. "2007 Emergency Mapping Center Constructing Common Operational Pictures with GIS." Journal of Disaster Research 5, no. 1 (February 1, 2010): 5–11. http://dx.doi.org/10.20965/jdr.2010.p0005.

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Emergency Mapping Center (EMC) activities at Chuetsu-oki Emergency Operation Center (EOC) are an innovative approach to disaster management, originating in Niigata Prefecture. This represents three important “firsts” in Japan – (1) the first disasterresponse digital mapping providing common operational pictures (COP) to local responders in real time, (2) the first collaborative emergency operations center (EOC) information analysis team, and (3) the first EMCstaff not directly supporting operation function but supporting staff function of EOC.
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Wolniak, Radosław. "Main functions of operation management." Production Engineering Archives 26, no. 1 (March 1, 2020): 11–14. http://dx.doi.org/10.30657/pea.2020.26.03.

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AbstractPresented paper concentrate on problems connected with the function of operation management within the company. Operation function is responsible for producing products and delivering services. But it needs support and input from others areas of the organization. The aim of the paper it to analyze on the basis on inter-national the main functions of operation management. We can distinguish seven main functions of operation management in the industrial enterprise: planning, scheduling, purchasing, controlling, quality control and inventory control. In each of those fields operations managers should conduct many decision affecting of-organization effectiveness.
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Feitosa, Jardênia R., Haroldo C. Fernandes, Paulo R. Cecon, Mauri M. Teixeira, Anderson G. Costa, and Edival C. da Silva. "Onion production costs as a function of water content and soil tillage." Revista Brasileira de Engenharia Agrícola e Ambiental 24, no. 5 (May 2020): 348–53. http://dx.doi.org/10.1590/1807-1929/agriambi.v24n5p348-353.

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ABSTRACT Onion production is an agricultural activity whose yield is associated with environmental, market and cultural management factors. The objective of this study was to evaluate the cost of onion production as a function of the tillage system adopted and the soil water content at the moment of the operations. Three tillage systems were evaluated: P1 - one plowing + two harrowings + two seedbed raising operations; P2 - two harrowings + one seedbed raising operation; P3 - one harrowing + one seedbed raising operation; and four soil water contents: 12, 15, 23 and 26%, in experiment conducted at the Tourão irrigated perimeter, Juazeiro, BA, Brazil (9° 24’ 07.3” S; 40° 26’ 08.7” W, and altitude of 376 m), in 2017, in split plots, in a randomized block design, with four repetitions. The costs related to mechanized operations, manual operations, inputs and crop irrigation were determined. The economic efficiency was evaluated through the variables total cost and unit cost of onion production, gross revenue, net revenue and internal rate of return. The use of the tillage system with one harrowing, one seedbed raising operation and seeding, under the condition of 23% soil water content, resulted in higher economic efficiency.
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Dissertations / Theses on the topic "Operations Function"

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Tatsch, Andrew R. "Artificial potential-function guidance for autonomous in-space operations." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0013399.

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Subagyo, Toto Hardiyanto. "Quality management practices in the south east Asian airlines' operations function." Thesis, Cranfield University, 2002. http://hdl.handle.net/1826/4148.

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Despite the recent Asian economics crisis (1997-1998), air traffic volumes in Asia- Pacific will continue to grow over the next decade. As the market is becoming more and more attractive, the competition amongst the airlines operating in the region has challenged the Southeast Asian carriers. The demanded quality of product/service by the customer has become a crucial issue. The ability to provide quality products and services is increasingly becoming a key determinant of an airline's business success. The quality of any organisation's products and services is determined by the core business or operational processes that create them. If the chain of processes is made effective and efficient, then the resulting products and services will also be effective and efficient. Airline business activities consist of sales and marketing, engineering and maintenance, flight operations, and ground services. For the purpose of this study the operations function, which consists of aircraft maintenance, flight operations and ground services, becomes a focus, as it is the core activity of operational processes that causes the success or failure of delivering quality products and services to the customer. The study was aimed at developing a model of quality management practices for the operations function of the `developing' airlines of Southeast Asia. It was conducted through extensive literature and field studies, based on the quality management practices of certain airlines in Southeast Asia and Western Europe. The study found that there were twelve critical success factors of quality practices in the operations function, which should be managed differently depending on the airlines' organisational contexts, in order to keep their operational effectiveness and efficiency at the required level. The findings configured a model that provides airlines' executives or managers with guidelines, which they can consult in their decision-making process when conducting quality improvement for their organisation. They may well be used by other airlines as well. The findings from the study also contribute to the knowledge of process quality, and the applicability of the quality concept developed in the social and business disciplines of airlines' operational organisation.
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Riaz, Muhammad. "Novel miniature microwave quasi-elliptical function bandpass filters with wideband harmonic suppression." Thesis, London Metropolitan University, 2017. http://repository.londonmet.ac.uk/1262/.

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Filters are integral components in all wireless communication systems, and their function is to permit predefined band of frequencies into the system and reject all other signals. The ever-growing demand in the use of the radio frequency (RF) spectrum for new applications has resulted in the need for high performance microwave filters with strict requirements on both inband and out-of-band characteristics. High selectivity, high rejection, low loss and extremely wide spurious-free performance are required for both transmitter and receiver channels. In addition, these devices need to be highly compact, easy to integrate within transceivers and should be amenable to low cost manufacturing. High selectivity is essential to enable the guard band between adjacent channels to be reduced thus improving the efficiency of the RF spectrum and hence increasing the capacity of the system. A low insertion-loss, high return-loss and small group-delay in the passband are necessary to minimize signal degradation. A wide stopband is necessary to suppress spurious passbands outside the filter’s bandwidth that may allow spurious emissions from modulation process (harmonic, parasitic, intermodulation and frequency conversion products) and interfere with other systems. The EMC Directive 89/336/EEC mandates that all electronic equipment must comply with the applicable EN specification for EMI. This thesis presents the research work that has resulted in the development of innovative and compact microstrip bandpass filters that fulfil the above stringent requirements for wireless communication systems. In fact, the proposed highly compact planar microstrip filters provide an alternative solution for existing and next generation of wireless communications systems. In particular, the proposed filters exhibit a low-loss and quasi-elliptic function response that is normally only possible with filter designs using waveguides and high temperature superconductors. The selectivity of the filters has been improved by inserting a pair of transmission zeros between the passband edges, and implementing notched rejection bands in the filter’s frequency response to widen its stopband performance. The filter structures have been analysed theoretically and modelled by using Keysight Technologies’ Advanced Design System (ADS™) and Momentum® software. The dissertation is essentially composed of four main sections. In the first section, several compact and quasi-elliptic function bandpass filter structures are proposed and theoretically analysed. Selectivity and stopband performance of these filters is enhanced by loading the input and output feed-lines with inductive stubs that introduce transmission zeros at specified frequencies in the filter’s frequency response. This technique is shown to provide a sharp 3-dB roll-off and steep selectivity skirt with high out-of-band rejection over a wide frequency span. In addition, the 3-dB fractional bandwidth of the filters is shown to be controllable by manipulating the filter’s geometric parameters. Traditional microwave bandpass filters are designed using quarter-wavelength distributed transmission-line resonators that are either end-coupled or side-coupled. The sharpness of the filter response is determined by the number of resonators employed which degrades the filter’s passband loss performance. This results in a filter with a significantly larger footprint which precludes miniaturization. To circumvent these drawbacks the second section describes the development of a novel and compact wideband bandpass filter with the desired characteristics. The quasi-elliptic function filter comprises open-loop resonators that are coupled to each other using a stub loaded resonator. The proposed filter is shown to achieve a wideband 3-dB fractional bandwidth of 23% with much better loss performance, sharp skirt selectivity and very wide rejection bandwidth. The third section describes the investigation of novel ultra-wideband (UWB) microstrip bandpass filter designs. Parametric study enabled the optimization of the filter’s performance which was verified through practical measurements. The proposed filters meet the stringent characteristics required by modern communications systems, i.e. the filters are highly compact and miniature even when fabricated on a low dielectric constant substrate, possess a sharp quasi-elliptic function bandpass response with low passband insertion-loss, and ultra-wide stopband performance. With the rapid development of multi-band operation in modern and next generation wireless communication systems, there is a great demand for single frequency discriminating devices that can operate over multiple frequency bands to facilitate miniaturization. These multi-band bandpass filters need to be physically small, have low insertion-loss, high return-loss, and excellent selectivity. In the fourth section two miniature microstrip dual-band and triple-band bandpass filter designs are explored. A detailed parametric study was conducted to fully understand how the geometric parameters of the filters affected their performance. The optimized filters were fabricated and measured to validate their performance.
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Horton, Rachel Avery Wing Steve. "Malodor from industrial hog operations, stress, negative mood, and secretory immune function in nearby residents." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2007. http://dc.lib.unc.edu/u?/etd,1370.

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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2007.
Title from electronic title page (viewed Apr. 25, 2008). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Epidemiology." Discipline: Epidemiology; Department/School: Public Health.
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Duncan, Anthony Ray. "Probability of economic success for Netherlands dairy farmers moving operations to the United States." Texas A&M University, 2004. http://hdl.handle.net/1969.1/1410.

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Dairy producers in the Netherlands are struggling to stay in business due to increased environmental legislation, population density, intensity of farming systems, costs of production and quota restrictions. One option available to Netherlands dairy farmers is to liquidate the value of their assets, put the money into an international bank, and buy an established dairy farm in the United States. The primary objective of this research is to compare the economic viability of a Netherlands dairy farmer staying in the Netherlands versus moving to the United States, assuming they will bring over all of their equity to put towards the purchase of a U.S. farm. The hypothesis that a Dutch dairy farmer would have a greater probability of economic success by relocating to the U.S was tested using a whole farm simulation model (FLIPSIM) to simulate the economic activity of a representative dairy farm in the Netherlands and 23 representative U.S. dairy farms in the major dairy producing regions over the 2002-2011 planning horizon. FLIPSIM generated an empirical probability distribution for net present value to rank the representative farms using stochastic efficiency with respect to a function (SERF) for risk neutral and risk averse decision makers. The FLIPSIM results showed that six of the twenty-three U.S. dairy farms would give the Dutch farmer a 99% chance of economic success. The added risk on income in the U.S. would result in these U.S. farms having a 1 to 99% chance of negative ending cash reserves (ECR) and a 1 to 99% chance of negative net cash farm income (NCFI). In a complete SERF analysis, seventeen of the twenty-three U.S. farms were preferred over the Dutch farm. In conclusion, the research shows Dutch dairy farmers with adequate equity would be financially better off by relocating to the U.S. if they desire to continue dairying, rather than staying in the Netherlands.
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McGregor, Daniel. "On the Structure of Kronecker Function Rings and Their Generalizations." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1523924670762482.

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Tim, Kay Lewis. "Child language, the emergence of vocal requests for absent objects as a function of preferred operations and." Scholarly Commons, 1988. https://scholarlycommons.pacific.edu/uop_etds/2158.

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Intellectually normal young children learn to request absent but needed objects which they are able to name. The primary focus of my study of child language in context was to assess the motivational effect of operation or stimulus preference on Lhe rate of toy request acquisition and the formation of stimulus classes (stimulus equivalences) . Of 13 21- to 37- month-old day-care children screened for generalized request responses (novel requests) , 1 girl and 4 boys participated in the training program because they were unable to request. Two of 4 children who completed training showed some support for the effect of preference for two two-stimulus operations on request response acquisition. All 4 children emitted novel requests to generalization probes following request acquisition criterion for one most and one least preferred stimulus. Preference had no observable effect on generalization of requesting to untrained stimuli. Additionally, I assessed and compared the cognitive-linguistic and adaptive-social maturity of those 5 children who were unable and those 8 who were able to request during preliminary request screening. The trained children tended to have a greater difference between their measured receptive and expressive language skills, and also they tended to have slightly lower scores on the Vineland Adaptive Behavior Scales: Communication, Daily Living Skills, Socialization, and Motor Skills Domains. I also tested the efficacy of a natural language paradigm using a distributed skills trial sequence with interspersed trials of known-items as an extension of Tidwell's (1986) matching-to-sample, errorless learning procedure. Four within-subject replications of successful operation, name, and request acquisition are reported across 8 operations in support of his response chain methodology. I suggest that a battery of most of the developmental measures and request screening and training procedures tested in my study might be used by behavioral interventionists to assess and remediate delayed and/or inappropriate requesting among young normally developing children in a day-care setting.
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Muniz, Luiz Fabiano de Oliveira. "Estratégia de operações: estudos de caso em revendas de gás LP em cidades do nordeste do Brasil." Universidade Federal de São Carlos, 2014. https://repositorio.ufscar.br/handle/ufscar/3778.

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Made available in DSpace on 2016-06-02T19:52:09Z (GMT). No. of bitstreams: 1 6536.pdf: 5744234 bytes, checksum: 3254e778ef288a6a42f50e87dc293065 (MD5) Previous issue date: 2014-09-26
One of the key factors for a successful resale of gas has, besides the relevant issues to any type of business it is maintaining a strategy aligned operations in which the Company Distributor maintains trade relations. Besides helping in the success of business strategies Distributor, resale becomes an agent of accomplishment and execution of the sale, despite its absolutely independent management. The goal of any organization, regardless of what it proposes to accomplish is to survive. But to enable such condition is very critical to have clearly defined what your positioning, as well as necessary for its operation presents a position to deliver the requirements sought by their customers attributes. In other words, this means that for an organization to be successful, it must, among other factors, the establishment of a goal to be achieved, the identification and understanding of the characteristics of competitors, differential required for operation and development of capabilities and new differential. This work aimed to study how dealers three gas companies, in northeastern Brazil, faithful to the same distributor develop their strategies and operations which the results obtained by them. To achieve this goal, first a literature able to support the development of a theoretical framework in order to develop a thorough knowledge of the subject studied and to establish a conceptual framework focused on field research, which was composed of studies was conducted case of exploratory and qualitative performed in each of the companies analyzed. After the description of the individual case studies, a cross was made of the results obtained, which were compared to identify similar characteristics and differences between companies. It was found that among the retailers studied, those with the highest level of integration with the distributor have trained to generate the expected results for its owners operating their function. In addition, issues such as defining strategic priorities, better level of service, investments and consistent development of decision areas become more favorable than that which does not share the same degree of integration.
Um dos fatores fundamentais para que uma revenda de gás tenha sucesso, além das questões pertinentes a qualquer tipo de negócio, é ela manter uma estratégia de operações alinhada à Companhia Distribuidora na qual mantem relações comerciais. Além de auxiliar no êxito das estratégias de negócio da Distribuidora, a revenda se torna um agente de realização e execução da venda, apesar de ter sua gestão absolutamente independente. O objetivo de qualquer organização, independente daquilo que se proponha realizar, é sobreviver. Porém, para que possa garantir essa condição, é fundamental ter muito claramente definido qual seu posicionamento, assim como os atributos necessários para que sua operação apresente condições de entregar os requisitos buscados por seus clientes. Em outras palavras, isso quer dizer que, para que uma organização seja bem sucedida é necessário, entre outros fatores, do estabelecimento de um objetivo a ser alcançado, da identificação e da compreensão das características dos concorrentes, dos diferenciais necessários para a operação e do desenvolvimento de capacitações e novos diferenciais. Este trabalho propôs-se a estudar o modo como três empresas revendedoras de gás, da região Nordeste do Brasil, fiéis ao mesmo distribuidor desenvolvem suas estratégias de operações e quais os resultados obtidos por meio delas. Para alcançar esse objetivo, primeiramente foi realizada uma pesquisa bibliográfica capaz de fundamentar a elaboração de um referencial teórico, com o intuito de desenvolver um conhecimento aprofundado sobre o tema estudado e de estabelecer uma estrutura conceitual voltada à pesquisa de campo, a qual foi composta por estudos de caso de caráter exploratório e qualitativo realizados em cada uma das empresas analisadas. Após a descrição dos estudos de caso individuais, foi feito um cruzamento dos resultados obtidos, os quais foram comparados a fim de identificar características similares e diferenças entre as empresas. Constatou-se que, entre as revendas estudadas, aquelas com o maior nível de integração com a distribuidora apresentam sua função operação capacitadas para gerar os resultados esperados por seus proprietários. Além disso, questões como definição das prioridades estratégicas, melhor nível de prestação de serviço, investimentos e desenvolvimento consistente de áreas de decisão se tornam mais favoráveis do que àquela que não compartilha do mesmo grau de integração.
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Crites, Stephen Lee. "Event-related brain potentials as a function of evaluative and nonevaluative judgment processes: a late positive brain potential that varies as a function of categorization rather than response operations /." The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487856906257448.

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Gao, Meihui. "Models and Methods for Network Function Virtualization (NFV) Architectures." Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0025/document.

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Avec la croissance exponentielle des demandes de service, les opérateurs ont déployé de nombreux équipements, et par conséquent, la gestion du réseau est devenue de plus en plus difficile et coûteuse. La virtualisation des fonctions réseau (NFV) a été proposée comme un nouveau paradigme pour réduire les coûts liés à l’acquisition et à la maintenance pour les réseaux de télécommunications. Dans ce travail de thèse, nous nous intéressons aux problèmes du chaînage des fonctions virtuelles (VNFs) qui combinent des décisions de localisation des VNFs et de routage des demandes. D'un point de vue d'optimisation, ce problème est une combinaison des problèmes de localisation (pour la partie d'installation des VNFs) et de conception de réseaux (pour la partie de routage). Ces deux problèmes ont été largement étudié dans la littérature. Cependant, leur combinaison représente des divers challenges en termes de modélisation et de résolution. Dans la première partie de cette thèse, nous considérons une version réaliste du problème du chaînage des VNFs (VNF-PR) afin de comprendre l'impact des différents aspects sur les coûts et les performances de gestion du réseau. Dans ce but, nous étendons le travail dans~\cite{Addis2015} en considérant des caractéristiques et des contraintes plus réalistes des infrastructures NFV et nous proposons un modèle de programmation linéaire et une heuristique mathématique pour le résoudre. Dans le but de mieux comprendre la structure du problème et ses propriétés, la deuxième partie de la thèse est orientée vers l'étude théorique du problème, où nous avons étudié une version compacte du problème du chaînage des VNFs. Nous fournissons des résultats sur la complexité de calcul sous divers cas de topologie et de capacité. Ensuite, nous proposons deux modèles et nous les testons sur un testbed avec plus de 100 instances différentes avec différents cas de capacité. Au final, nous abordons la scalabilité du problème en proposant des méthodes constructives et des méthodes heuristiques basées sur la programmation linéaire entière pour traiter efficacement des instances de taille grande (jusqu'à 60 nœuds et 1800 demandes). Nous montrons que les heuristiques proposées sont capables de résoudre efficacement des instances de taille moyenne (avec jusqu'à 30 nœuds et 1 000 demandes) de cas de capacité difficiles et de trouver de bonnes solutions pour les instances dures, où le modèle ne peut fournir aucune solution avec un temps de calcul limité
Due to the exponential growth of service demands, telecommunication networks are populated with a large and increasing variety of proprietary hardware appliances, and this leads to an increase in the cost and the complexity of the network management. To overcome this issue, the NFV paradigm is proposed, which allows dynamically allocating the Virtual Network Functions (VNFs) and therefore obtaining flexible network services provision, thus reducing the capital and operating costs. In this thesis, we focus on the VNF Placement and Routing (VNF-PR) problem, which aims to find the location of the VNFs to allocate optimally resources to serve the demands. From an optimization point of view, the problem can be modeled as the combination of a facility location problem (for the VNF location and server dimensioning) and a network design problem (for the demands routing). Both problems are widely studied in the literature, but their combination represents, to the best of our knowledge, a new challenge. We start working on a realistic VNF-PR problem to understand the impact of different policies on the overall network management cost and performance. To this end, we extend the work in [1] by considering more realistic features and constraints of NFV infrastructures and we propose a linear programming model and a math-heuristic to solve it. In order to better understand the problem structure and its properties, in the second part of our work, we focus on the theoretical study of the problem by extracting a simplified, yet significant variant. We provide results on the computational complexity under different graph topology and capacity cases. Then, we propose two mathematical programming formulations and we test them on a common testbed with more than 100 different test instances under different capacity settings. Finally, we address the scalability issue by proposing ILP-based constructive methods and heuristics to efficiently deal with large size instances (with up to 60 nodes and 1800 demands). We show that our proposed heuristics can efficiently solve medium size instances (with up to 30 nodes and 1000 demands) of challenging capacity cases and provide feasible solutions for large size instances of the most difficult capacity cases, for which the models cannot find any solution even with a significant computational time
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Books on the topic "Operations Function"

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Schroeder, Roger G. Operations management: Decision makingin the operations function. 2nd ed. New York: McGraw-Hill, 1985.

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Schroeder, Roger G. Operations management: Decision making in the operations function. 4th ed. NewYork, N.Y: McGraw-Hill, 1993.

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Schroeder, Roger G. Operations management: Decision making in the operations function. 3rd ed. New York: McGraw-Hill, 1989.

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Schroeder, Roger G. Operations management: Decision-making in the operations function. Miadenhead: McGraw Hill, 1985.

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Operations management: Decision making in the operations function. 4th ed. New York: McGraw-Hill, 1993.

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Schroeder, Roger G. Operations management: Decision making in the operations function. 4th ed. New York: McGraw-Hill, 1993.

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Schroeder, Roger G. Operations management: Decision making in the operations function. 3rd ed. New York: McGraw-Hill, 1989.

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Operations management: Decision making in the operations function. 2nd ed. New York: McGraw-Hill, 1985.

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Shlomo, Havlin, ed. Complex networks: Structure, robustness, and function. New York: Cambridge University Press, 2010.

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Lange, Heinrich. Solution of large-scale multicommodity network flow problems via a logarithmic barrier function decomposition. Monterey, California: Naval Postgraduate School, 1988.

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Book chapters on the topic "Operations Function"

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Crosbie, W. A. "Pulmonary Function Changes." In Arctic Underwater Operations, 63–71. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-011-9655-0_7.

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Gass, Saul I., and Carl M. Harris. "function." In Encyclopedia of Operations Research and Management Science, 607. New York, NY: Springer US, 2001. http://dx.doi.org/10.1007/1-4020-0611-x_740.

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Gong, Yeming. "Cross-Function Global Operational Practice." In Global Operations Strategy, 243–81. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36708-3_8.

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Gass, Saul I., and Carl M. Harris. "Loss function." In Encyclopedia of Operations Research and Management Science, 468. New York, NY: Springer US, 2001. http://dx.doi.org/10.1007/1-4020-0611-x_562.

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Gass, Saul I., and Carl M. Harris. "Convex function." In Encyclopedia of Operations Research and Management Science, 147. New York, NY: Springer US, 2001. http://dx.doi.org/10.1007/1-4020-0611-x_166.

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Gass, Saul I., and Carl M. Harris. "Intensity function." In Encyclopedia of Operations Research and Management Science, 399. New York, NY: Springer US, 2001. http://dx.doi.org/10.1007/1-4020-0611-x_470.

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Gass, Saul I., and Carl M. Harris. "Lagrangian function." In Encyclopedia of Operations Research and Management Science, 437. New York, NY: Springer US, 2001. http://dx.doi.org/10.1007/1-4020-0611-x_512.

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Gass, Saul I., and Carl M. Harris. "Structure function." In Encyclopedia of Operations Research and Management Science, 794. New York, NY: Springer US, 2001. http://dx.doi.org/10.1007/1-4020-0611-x_1016.

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Gass, Saul I., and Carl M. Harris. "Transfer function." In Encyclopedia of Operations Research and Management Science, 848. New York, NY: Springer US, 2001. http://dx.doi.org/10.1007/1-4020-0611-x_1058.

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Gass, Saul I., and Carl M. Harris. "Utility function." In Encyclopedia of Operations Research and Management Science, 862. New York, NY: Springer US, 2001. http://dx.doi.org/10.1007/1-4020-0611-x_1095.

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Conference papers on the topic "Operations Function"

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Talabani, Soran, and Geir Hareland. "Expansion-Contraction Cycles for Cement Optimized as a Function of Additives." In SPE Production Operations Symposium. Society of Petroleum Engineers, 1995. http://dx.doi.org/10.2118/29471-ms.

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Chen, Shing-Ming. "A Generalized Hyperbolic Decline Equation with Rate-Time Dependent Function." In SPE Production and Operations Symposium. Society of Petroleum Engineers, 2003. http://dx.doi.org/10.2118/80909-ms.

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Miyazawa, Takaya, Masahiro Jibiki, Ved P. Kafle, and Hiroaki Harai. "Autonomic resource arbitration and service-continuable network function migration along service function chains." In NOMS 2018 - 2018 IEEE/IFIP Network Operations and Management Symposium. IEEE, 2018. http://dx.doi.org/10.1109/noms.2018.8406235.

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Kang, Rui, Fujun He, Takehiro Sato, and Eiji Oki. "Demonstration of Network Service Header Based Service Function Chain Application with Function Allocation Model." In NOMS 2020-2020 IEEE/IFIP Network Operations and Management Symposium. IEEE, 2020. http://dx.doi.org/10.1109/noms47738.2020.9110255.

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Seshake, H., N. Kimura, and T. Fujiwara. "Congestion control function on an operations support system." In Proceedings of APCC/OECC'99 - 5th Asia Pacific Conference on Communications/4th Optoelectronics and Communications Conference. IEEE, 1999. http://dx.doi.org/10.1109/apcc.1999.820457.

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Cho, Sung-chul, Ki-yun Woo, Koichiro Takamasu, and Shigeru Fujimura. "Autonomous Distributed Scheduling Adjustment Function with Interchanging Operations." In 2006 IEEE International Conference on Automation Science and Engineering. IEEE, 2006. http://dx.doi.org/10.1109/coase.2006.326913.

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Qiu, Yangjun, Xiaofeng Qiu, and Yibin Cai. "Service function chaining policy compliance checking." In 2018 IEEE/IFIP Network Operations and Management Symposium (NOMS 2018). IEEE, 2018. http://dx.doi.org/10.1109/noms.2018.8406194.

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Motoyoshi, Gen, Kenji Leibnitz, and Masayuki Murata. "Function-distributed mobility system for the future Internet." In 2010 IEEE/IFIP Network Operations and Management Symposium Workshops. IEEE, 2010. http://dx.doi.org/10.1109/nomsw.2010.5486607.

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Lin, Thomas, Naif Tarafdar, Byungchul Park, Paul Chow, and Alberto Leon-Garcia. "Enabling network function virtualization over heterogeneous resources." In 2017 19th Asia-Pacific Network Operations and Management Symposium (APNOMS). IEEE, 2017. http://dx.doi.org/10.1109/apnoms.2017.8094179.

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Zhang, Shilei, Ying Wang, Wenjing Li, and Xuesong Qiu. "Service failure diagnosis in service function chain." In 2017 19th Asia-Pacific Network Operations and Management Symposium (APNOMS). IEEE, 2017. http://dx.doi.org/10.1109/apnoms.2017.8094181.

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Reports on the topic "Operations Function"

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Thill, D. C., J. L. Zeller, and Jr. Operational Procedures for Safety Function Support for Combat Operations,. Fort Belvoir, VA: Defense Technical Information Center, December 1991. http://dx.doi.org/10.21236/ada373211.

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Claus, Christopher. Integrating Information Operations as a Joint Function. Fort Belvoir, VA: Defense Technical Information Center, April 2008. http://dx.doi.org/10.21236/ada484180.

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Aldrin, S., R. Krishnan, and A. Ghanwani. Service Function Chaining (SFC) Operations, Administration, and Maintenance (OAM) Framework. Edited by C. Pignataro and N. Kumar. RFC Editor, October 2020. http://dx.doi.org/10.17487/rfc8924.

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Harrison, Kent E., Terry P. Bartoski, Dorothy L. Finley, and Kathleen A. Quinkert. Plan for Combat Operations (Battlefield Function 18) as Accomplished by a Heavy Brigade. Volume 1: Function Analysis. Fort Belvoir, VA: Defense Technical Information Center, January 1998. http://dx.doi.org/10.21236/ada344154.

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Lindner, James F. Force Protection: A Critical Function During Military Operations Other than War. Fort Belvoir, VA: Defense Technical Information Center, May 1995. http://dx.doi.org/10.21236/ada298141.

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Whitley, Sam H., and Melissa Anderson. Plan for Combat Operations (Battlefield Function 18) as Accomplished by a Forward Support Battalion. Volume 1: Function Analysis. Fort Belvoir, VA: Defense Technical Information Center, February 1998. http://dx.doi.org/10.21236/ada342517.

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Elder, Robin. Plan for Combat Operations (Battlefield Function 18) as Accomplished by a Direct Support Field Artillery Battalion; Volume 1: Function Analysis. Fort Belvoir, VA: Defense Technical Information Center, January 1998. http://dx.doi.org/10.21236/ada343311.

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Hugo, Jacques, John Forester, David Gertman, Jeffrey Joe, Heather Medema, Julius Persensky, and April Whaley. Draft Function Allocation Framework and Preliminary Technical Basis for Advanced SMR Concepts of Operations. Office of Scientific and Technical Information (OSTI), August 2013. http://dx.doi.org/10.2172/1114571.

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Jacques Hugo, David Gertman, Jeffrey Joe, Heather Medema, Julius Persensky, and April Whaley. Draft Function Allocation Framework and Preliminary Technical Basis for Advanced SMR Concepts of Operations. Office of Scientific and Technical Information (OSTI), April 2013. http://dx.doi.org/10.2172/1082399.

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Mullen, William J., Whitley III, Anderson Sam H., Kemper Melissa, and Toni R. Plan for Combat Operations (Battlefield Function 18) as Accomplished by a Forward Support Battalion Volume 2: Assessment Package. Fort Belvoir, VA: Defense Technical Information Center, February 1998. http://dx.doi.org/10.21236/ada342573.

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