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Tytuł:
Optimizing of a Company’s Cost under Fuzzy Data and Optimal Orders Under Dynamic Conditions
Autorzy:
Sobol, Irena
Kacprzak, Dariusz
Kosiński, Witold
Powiązania:
https://bibliotekanauki.pl/articles/429885.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet w Białymstoku. Wydawnictwo Uniwersytetu w Białymstoku
Tematy:
Ordered Fuzzy Numbers
defuzzification
Economic Order Quantity Model
optimal order quantity
Opis:
The purpose of this article is to suggest tools of inventory management which would determine economically optimal order quantities. One of them is based on the so-called fixed order quantity model which takes into account several elements of inventory cost, such as ordering cost, transportation and storing cost, frozen capital cost, as well as extra discounts. The tool is based on fuzzy concepts represented by Ordered Fuzzy Numbers. The second tool takes into account the dynamics and works on the basis of replenishment system. This tool can be treated as a kind of controller. Examples of using this tools are presented.
Źródło:
Optimum. Economic Studies; 2014, 5(71)
1506-7637
Pojawia się w:
Optimum. Economic Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of products reliability influence on remanufacturing processes
Autorzy:
Plewa, M.
Powiązania:
https://bibliotekanauki.pl/articles/2069715.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
remanufacturing
returned products quantity
return reasons
reliability models
predicting the quantity of return
Opis:
Remanufacturing is a process of recapturing value from returned products. Whole products are brought back to like-new condition. The seven factors, that make production planning and process control for remanufacturing more complicated then equivalent activities in normal manufacturing, had been proposed in literature. The main one is the uncertain timing and quantity of returns. There is a lack of reliability based forecasting models to better predict products life-cycles, return rates and quantities. Only one reliability based production planning method for remanufacturing had been proposed. It identifies two return reasons and it is appropriate only for single-use products. In practice most of products are serviced and return only in specific cases. In this article seven different return reasons has been identified and third one has been investigated. Other will be studied in future papers.
Źródło:
Journal of Polish Safety and Reliability Association; 2008, 2; 301--306
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Operational quantities characterizing semi-Fredholm operators
Autorzy:
González, Manuel
Martinón, Antonio
Powiązania:
https://bibliotekanauki.pl/articles/1289364.pdf
Data publikacji:
1995
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
operational quantity
semi-Fredholm operator
Opis:
Several operational quantities have appeared in the literature characterizing upper semi-Fredholm operators. Here we show that these quantities can be divided into three classes, in such a way that two of them are equivalent if they belong to the same class, and are comparable and not equivalent if they belong to different classes. Moreover, we give a similar classification for operational quantities characterizing lower semi-Fredholm operators.
Źródło:
Studia Mathematica; 1995, 114, 1; 13-27
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparing Probabilistic Economic Order Quantity and Periodic Order Quantity Model Performance Under Lumpy Demand Environment
Autorzy:
Nurprihatin, Filscha
Rembulan, Glisina Dwinoor
Pratama, Yohanes Dwi
Powiązania:
https://bibliotekanauki.pl/articles/2201156.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lumpy demand
material requirements planning
probabilistic economic order quantity
periodic order quantity
aggregate plan
Opis:
Improper planning of inventory will affect the factory operating costs, building costs, the cost of loss, and the cost of product defects due to being stored for too long which will eventually become a loss. This research discusses the processing industry which is experiencing lumpy demand. In carrying out the production process, the company has never made plans for future demand, resulting in a waste of message costs due to repeated orders of raw materials ordered to suppliers. This paper contributes to overcoming this issue by simulating future demand by using the Material Requirement Planning (MRP) method with a probabilistic Economic Order Quantity (EOQ) and Periodic Order Quantity (POQ) model. The demand in the coming period is determined using the Autoregressive Integrated Moving Average (ARIMA) method, and an aggregate plan is carried out to determine the regular cost of raw material production and optimal subcontracting. The final analysis states that the calculation of MRP on the selected items using POQ produces the lowest cost for planning S45C-F, SGT-R, and SKD11-R, while SLD-R uses the probabilistic EOQ method.
Źródło:
Management and Production Engineering Review; 2022, 13, 4; 16--25
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ wybranych czynników społeczno-ekonomicznych na zmiany ilości odpadów komunalnych w województwie Podlaskim
The influence of chosen socio-economical factors on change of waste quantity in podlaskie province.
Autorzy:
Tałałaj, I. A.
Powiązania:
https://bibliotekanauki.pl/articles/401264.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
odpady komunalne
ilość odpadów
zmiany ilościowe odpadów
municipal waste
waste quantity
variation of waste quantity
Opis:
Celem pracy jest określenie wpływu wybranych czynników społeczno-ekonomicznych oraz czynników związanych z infrastrukturą danego obszaru na zmiany ilościwytwarzanych odpadów w poszczególnych powiatach województwa podlaskiego.W pracy przestawiono zmiany ilości odpadów komunalnych w woj. podlaskim. Analizy przeprowadzone zostały odrębnie dla każdego powiatu, co umożliwiło ocenę zachodzących zmian pomiędzy poszczególnymi rejonami oraz odniesienie uzyskanych rezultatów do skali województwa. Do badań przyjęto przedział czasowy 2001-2008. Jako narzędzie badawcze wykorzystano m.in. pakiet Statistica za pomocą którego ustalono kierunek oraz siłę oddziaływania miedzy wybranymi czynnikami społeczno-ekonomicznymi i ilością odpadów, opisano zależności miedzy ilością odpadów a jednym lub więcej czynnikami, przeanalizowano struktury w uzyskanych danych i oceniono wpływ wybranych czynników na zmiany ilości odpadów komunalnych w poszczególnych powiatach woj. podlaskiego.Uzyskane rezultaty wskazały na zróżnicowanie dynamiki zmian ilości odpadów w poszczególnych jednostkach administracyjnych analizowanego województwa. W celu określenia wpływu wybranych czynników społeczno-ekonomicznych na ilość wytworzonych odpadów posłużono się metodą analizy czynnikowej. Wyodrębnione w trakcie badań czynniki pozwoliły na określenie udziału badanych zmiennych w zmianach ilości odpadów. Ponadto obliczone średnie wartości czynników umożliwiły ocenę siły ich oddziaływania w poszczególnych powiatach województwa.
The aim of the paper is assessment of influence of chosen the socio-economical factors as well as the factors connected with infrastructure on change of waste in individual administrative districts of podlaskie province. In paper a changes of municipal wastes quantity during eight years (2001-2008) was presented. The analysis were conducted for every administrative district separately, which made possible the estimation of changes taking place among individual regions as well as the reference of obtained results to scale of province. As a investigation tool was used the Statistica packet. It allows the evaluation of direction and interaction strength between the analysed factors as well as structure analyses of obtained results and assessment of influence selected factors on waste quantity changes in each individual regions of province. The obtained results showed on differentiation in dynamics of changes of waste quantity for individual administrative districts of analysed province. Factors selected during investigations allow on evaluation of participation of each variables in waste changing process. Moreover, the calculation the averages value of factors made possible to assess the strength of their influence in individual administrative districts of province.
Źródło:
Inżynieria Ekologiczna; 2011, 25; 146-156
2081-139X
2392-0629
Pojawia się w:
Inżynieria Ekologiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wielkości i... metrologia
Autorzy:
Borzymiński, J.
Powiązania:
https://bibliotekanauki.pl/articles/1425585.pdf
Data publikacji:
2014
Wydawca:
Główny Urząd Miar
Tematy:
terminologia
metrologia
wielkość
terminology
metrology
quantity
Opis:
Prace terminologiczne w dziedzinie metrologii budzą szerokie zainteresowanie i liczba chętnych do uczestnictwa w nich jest duża. Wynika to zapewne z chęci uporządkowania pojęć i terminów, które występują w prowadzonych pracach oraz w literaturze - metrologia jest nauką obecną w bardzo licznych zastosowaniach praktycznych, a to sprzyja powstawaniu terminologii środowiskowych. Być może zachętą jest tu też czasem pozorna łatwość zagadnień terminologicznych - można ulec złudzeniu, że prace terminologiczne dotyczą w gruncie rzeczy słownictwa, a tutaj wszyscy chętni do zabrania głosu czują się jednakowo predestynowani. Bywa, niestety, że dyskusje terminologiczne nabierają cech płytkich sporów o znaczenie słów i sformułowań, w których pojawiają się argumenty pozamerytoryczne. Czasem też pojawia się postulat, że terminologia powinna być prosta i „zrozumiała dla praktyków”, a nawet, że niektóre terminy są tak proste i oczywiste, że sens prac terminologicznych jest w odniesieniu do nich wątpliwy. Celem niniejszego artykułu jest zwrócenie uwagi na złożoność jednego z podstawowych pojęć metrologii, jakim jest 'wielkość'. Pokazano zatem, jakie były początki procesu jego kształtowania się, aspekty, w jakich pojęcie to można rozważać, i jego uniwersalny charakter.
In the paper, various aspects are considered of the concept 'quantity'. Besides the concept 'measure' it is one of the fundamental notions in metrology. The earliest times of the art of measurement are recalled and it is quick development is mentioned. Described is the impact of the ancient science on the development of the theory of measurement. Way to the concept 'quantity' is shortly reviewed and its relation with the concept 'measure' is considered. Analogies between the quantities pertaining to different phenomena are reviewed.
Źródło:
Metrologia i Probiernictwo : biuletyn Głównego Urzędu Miar; 2014, 4 (7); 59--65
2300-8806
Pojawia się w:
Metrologia i Probiernictwo : biuletyn Głównego Urzędu Miar
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Einige Überlegungen zur Realisierung der Quantität auf höheren Ebenen des phonetischen Ausdrucks – Projektvoraussetzungen
Some Considerations for Realization of Quantity at Higher Levels of Phonetic Expression – Project Assumptions
Autorzy:
Molenda, Aleksandra
Powiązania:
https://bibliotekanauki.pl/articles/2028979.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Wrocławski. Oficyna Wydawnicza ATUT – Wrocławskie Wydawnictwo Oświatowe
Tematy:
spoken texts
vowels
consonants
quantity
prosody
Opis:
This text is dedicated to segment extensions. It makes up an integral part of the dissertation project under the title “Variation of the segmental characteristic quantity at higher levels of phonetic manifestation on the basics of selected text types in German, Italian and Polish”. The article presents some considerations and comments on the topic of segmental quantity as well as observed regularities and tendencies.
Źródło:
Linguistische Treffen in Wrocław; 2020, 18; 431-439
2084-3062
2657-5647
Pojawia się w:
Linguistische Treffen in Wrocław
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gehen Vokalverlängerungen mit Fokusakzenten einher?
Are Vowel Extensions Accompanied by Focus Accents?
Autorzy:
Molenda, Aleksandra
Powiązania:
https://bibliotekanauki.pl/articles/458840.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Wrocławski. Oficyna Wydawnicza ATUT – Wrocławskie Wydawnictwo Oświatowe
Tematy:
academic spoken texts
vowels
quantity
prosody
Opis:
The aim of this paper is to analyse and to compare the vowel extension in the academic spoken texts in German and Italian. It contains corpus-based analysis of lectures, which were published on web page gewiss.uni-leipzig.de. In this study the function of vowel extension is established. Furthermore, the author of this article has attempted to answer the question, if vowel extensions are accompanied by focus accents.
Źródło:
Linguistische Treffen in Wrocław; 2019, 16; 317-328
2084-3062
2657-5647
Pojawia się w:
Linguistische Treffen in Wrocław
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nanofluid assistance in machining processes – properties, mechanisms and applications: a review
Autorzy:
Grzesik, Wit
Powiązania:
https://bibliotekanauki.pl/articles/1429063.pdf
Data publikacji:
2021
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
nanofluid
nanoparticle
machining process
minimum quantity lubrication
Opis:
A special group of hybrid assisted processes termed media-assisted processes which apply liquid media with special additives in the form of nanoparticles supplied to the cutting zone is overviewed. Special attention is paid to minimum quantity lubrication (MQL) technique with the use of nanofluids. In this review paper some important thermal and tribological effects resulting from the applications of various nanoparticles are outlined and compared. The MQL-nano cutting fluid mechanisms (rolling and ploughing) are described. In particular, some important quantitative effects concerning thermal and tribological behaviour of the cutting process as well as surface quality are presented.
Źródło:
Journal of Machine Engineering; 2021, 21, 2; 75-90
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tunneling throught a barrier under transverse magnetic field and I-V characteristic
Autorzy:
Papadopoulos, George J.
Powiązania:
https://bibliotekanauki.pl/articles/1955281.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska
Tematy:
transmission coefficient
momentum-like quantity
I-V characteristic
Opis:
The case whereby the transmission coefficient through a barrier, sandwiched by semiconductor reservoirs, under bias is provided by a general formula involving the logarith micwave function derivative at the barrier entrance is now extended to include the influence of magnetic field perpendicular to the longitudinal barrier direction. Under the circumstances, theequation governing the logarithmic wave function derivative is appropriately modified via aneffective potential energy which takes account of the magnetic field. Subsequently, the procedurefor obtaining the transmission coefficient is applied to the case involving a smooth double, as wellas quadruple, barrier for which theI-V characteristic is obtained. The results show reduction incurrent with increase in the magnetic field, up to a certain value of bias. Furthermore, increasein temperature exhibits increase in current as well as movement of the current peaks in the I-V curves towards lower bias.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2018, 22, 2; 125-133
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sediment quantity management in polish catchment-river-sea systems – should we care?
Autorzy:
Szalińska, E.
Wilk, P.
Powiązania:
https://bibliotekanauki.pl/articles/96098.pdf
Data publikacji:
2018
Wydawca:
Fundacja Ekonomistów Środowiska i Zasobów Naturalnych
Tematy:
sediment
quantity    
management    
catchment
osad
ilość
zarządzanie
zlewnia
Opis:
The continuity of sediment transport in many catchment-river-sea systems worldwide has been disturbed by anthropogenic interferences. These interferences alter the sediment balance and result either in a surplus or lack of sediment, and with mostly negative, impacts to the economy, development and infrastructure, and environment. The main issues discussed related to surplus or lack of sediment belongs to: i) siltation of reservoirs with negative effects on hydropower production or water storage, and ii) erosion at downstream reaches where sediments are essential for channel formation and aquatic habitats. Both problems are recognized in Poland, however, only dealt with when they cause local economic problems. The paper focuses on examples of sustainable sediment managements in catchment-river-sea systems, and presents the idea of combining the Macromodel DNS with the SWAT module. The resulting modelling and analytical tool can be considered very valuable in sediment quantity management.
Źródło:
Ekonomia i Środowisko; 2018, 3; 25-37
0867-8898
Pojawia się w:
Ekonomia i Środowisko
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A model for optimizing enterprise’s inventory costs : a fuzzy approach
Autorzy:
Kosiński, W
Muniak, R.
Kosiński, W. K.
Powiązania:
https://bibliotekanauki.pl/articles/406354.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
economic order quantity
optimization problem
ordered fuzzy numbers
Opis:
Applicability of a fuzzy approach to a problem originating from administrative accounting, namely to determine an economic order quantity (EOQ) in a variable competitive environment with imprecise and vague data, has been presented. For this purpose, the model of ordered fuzzy numbers developed by the first author and his two co-workers is used. The present approach generalizes the one developed within the framework of convex fuzzy numbers and stays outside the probabilistic one.
Źródło:
Operations Research and Decisions; 2013, 23, 4; 39-54
2081-8858
2391-6060
Pojawia się w:
Operations Research and Decisions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of non-classical operational calculus to indicate hazards in numerical solutions of engineering problems
Autorzy:
Mieloszyk, Eligiusz
Wyroślak, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/1845137.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
approximative computation
non-classical operational calculus
quantity analysis
Opis:
The article addresses the application of non-classical operational calculus to approximative solutions of engineering problems. The engineering-sound examples show that a continuous–discrete problem transformation from differential unequivocal problem to a differential wildcard problem, triggering a change in solution quality. A number of approximative methods are capable to alter both quantitative and qualitative solution effects.
Źródło:
Studia Geotechnica et Mechanica; 2020, 42, 3; 242-247
0137-6365
2083-831X
Pojawia się w:
Studia Geotechnica et Mechanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Discours de la méthode pour bien conduire sa raison et chercher la vérité dans les sciences, plus la Dioptrique, les Météores et la Géométrie qui sont des essais de cette méthode
Geometria (księga II, strony 315-323)
Autorzy:
Błaszczyk, Piotr
Mrówka, Kazimierz
Descartes, Rene
Powiązania:
https://bibliotekanauki.pl/articles/437295.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie. Instytut Filozofii i Socjologii
Tematy:
Descartes
The Geometry
geometrical curve
continuous quantity
point
Źródło:
ARGUMENT: Biannual Philosophical Journal; 2014, 4, 2; 439-446
2083-6635
2084-1043
Pojawia się w:
ARGUMENT: Biannual Philosophical Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
To See a City Come into Being in Speech: Genus and Analogy in Plato’s Republic
Autorzy:
Barmore, Steven
Powiązania:
https://bibliotekanauki.pl/articles/507671.pdf
Data publikacji:
2018-06-30
Wydawca:
International Étienne Gilson Society
Tematy:
Plato
Aristotle
Aquinas
genus
species
virtual quantity
analogy
being
Opis:
An understanding of the philosophical genus contributes to the perfection of the act of the philosophical habit of the human soul because reality is constituted by a multitude of overlapping genera. Because genera are constituted by a multitude of species unequally related to their generic aim, St. Thomas’s teaching on virtual quantity facilitates an understanding of the diversity of being. Analogy is an act of judgment that expresses an unequally proportionate relationship between beings. Like genus, analogy has to do with a multitude of beings unequally related to a primary subject; as such, analogy is the language of philosophy. To see ‘a city come into being in speech’ in Book II of The Republic is to be trained to observe the relation between real beings, to make correct judgments about those relationships, and to thereby be properly oriented toward reality.
Źródło:
Studia Gilsoniana; 2018, 7, 2; 159-179
2300-0066
Pojawia się w:
Studia Gilsoniana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimation of seagoing ships engine power based on distinguishing quantity parameter
Autorzy:
Charchalis, A.
Krefft, J.
Powiązania:
https://bibliotekanauki.pl/articles/247041.pdf
Data publikacji:
2010
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
container vessels
TEU
main engine power
quantity parameter
displacement
Opis:
The power of main engine must be determined in such a way to let the seagoing ship reaches the predicted, in the agreement with the ship owner, service speed. Significant influence on the main engine power, apart from the ship 's speed, has a geometry shape and the dimensions of the ship's hull. Begins from the general form of Admiralition's equation, it is essential to establish the specific quantity parameter for the estimation of main engine power. That parameter can be described by the displacement, DWT, LBT, TEU number, the 14 tons TEU number etc. depends on the type of the seagoing vessel. The estimation of the specified maximum continuous rating SMCR based on the quantity parameter can be practicable in the preliminary design stage because of the small number of the known design data and the importance of the design decisions made at that level. The characteristic quantity parameter to establish the main engine power of the seagoing ship has been determined using the data of the contemporary container ships in operation. The research has been done in the whole range of the container capacity in TEU, where the combustion, reciprocation engines are used to propel the seagoing vessels. The statistical and regression tools have been utilized in the data analysis process to determine the quantity parameter.
Źródło:
Journal of KONES; 2010, 17, 2; 51-56
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Case study about economic order quantities and comparison of results from conventional EOQ model and response surface-based approach
Autorzy:
Yıldız, R.
Yaman, R.
Powiązania:
https://bibliotekanauki.pl/articles/406756.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
economic order quantity
Pareto analysis
response surface
demand forecasting
Opis:
This study involves the implementation of an economic order quantity (EOQ) model which is an inventory control method in a ceramic factory. Two different methods were applied for the calculation of EOQs. The first method is to determine EOQ values using a response surface method-based approach (RSM). The second method uses conventional EOQ calculations. To produce a ceramic product, 281 different and additive materials may be used. First, Pareto (ABC) analysis was performed to determine which of the materials have higher priority. Because of this analysis, the value of 21 items among 281 different materials and additives were compared to the ratio of the total product. The ratio was found to be 70.4% so calculations were made for 21 items. Usage value for every single item for the years 2011, 2012, 2013 and 2014, respectively, were obtained from the company records. Eight different demand forecasting methods were applied to find the amount of the demand in EOQ. As a result of forecasting, the EOQ of the items were calculated by establishing a model. Also, EOQ and RSM calculations for the items were made and both calculation results were compared to each other. Considering the obtained results, it is understood that RSM can be used in EOQ calculations rather than the conventional EOQ model. Also, there are big differences between the EOQ values which were implemented by the company and the values calculated. Because of this work, the RSM-based EOQ approach can be used to decide on the EOQ calculations as a way of improving the system performance.
Źródło:
Management and Production Engineering Review; 2018, 9, 3; 23-32
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The implementation of economic order quantity for reducing inventory cost
Autorzy:
Riza, M.
Purba, H. H.
Mukhlisin, -
Powiązania:
https://bibliotekanauki.pl/articles/1833813.pdf
Data publikacji:
2018
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
inventory management
economic order quantity
inventory turnover ratio words
Opis:
Inventory management is focused with ensuring that all activities involved in labor storage and stock control are carried out efficiently and economically by those working in inventory storage. Then, there is a question for management regarding the efficiency of inventory management procedures because of inconsistencies in inventory levels that cause weaknesses such as losses incurred due to end-inventory stocks, low stock inventories, failure to meet targets and poor corporate morale. As a result, the inventory storage of the company is too busy making the job a difficult supply keeper, late in issuing materials to the department and in turn producing poor inventory service delivery. In inventory management, Economic Order Quantity (EOQ) is the number of orders that minimize total holding costs and booking costs. The EOQ model is one of the oldest classic production scheduling models. The EOQ mathematical models have been established within the scope of operations management to determine the optimal inventory level. The most widely used model is the EOQ model.
Źródło:
Research in Logistics & Production; 2018, 8, 3; 207-216
2083-4942
2083-4950
Pojawia się w:
Research in Logistics & Production
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Economic Manufacturing Quantity Model with Machine Failure, Overtime and Rework/Disposal of Nonconforming Items
Autorzy:
Chiu, Singa Wang
Chiu, Tiffany
Chiu, Yuan-Shyi Peter
Lin, Hong-Dar
Powiązania:
https://bibliotekanauki.pl/articles/1841426.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
optimization
economic manufacturing quantity
machine failure
scrap
rework
overtime
Opis:
To increase their competitive advantage in turbulent marketplaces, contemporary manufacturers must show determination in seeking ways to: fulfill buyer orders with quality merchandise; meet deadlines; handle unexpected production disruptions; and lower the total relevant expense. To tackle the abovementioned challenges, this study explores an economic manufacturing quantity (EMQ) model with machine failure, overtime, and rework/disposal of nonconforming items; the goal is to find the best fabrication uptime that minimizes total relevant expenses. Specifically, we consider a production unit with overtime capacity as an operational feature that is linked to higher unit and setup costs. Further, its EMQ-based process is subject to random nonconforming items and failure rates. Extra screening separates the reworkable nonconforming items from scrap, and the rework is executed at the end of each cycle of regular fabrication. The failures follow a Poisson distribution, and a machine repair task starts as soon as a failure occurs; the fabrication of the lot that was interrupted resumes after the repair has been carried out. A decision model is built to capture the characteristics of the problem. Mathematical and optimization processes help in determining the optimal fabrication uptime. A numerical example not only illustrates the applicability of the research outcomes, but also reveals a diverse set of information about the individual or joint influences of deviations in mean-time-to-failure, overtime factors, and rework/disposal ratios linked to nonconforming rates related to the optimal replenishment uptime, total operating expenses, and various cost contributors; this facilitates better decision making.
Źródło:
Management and Production Engineering Review; 2021, 12, 1; 3-16
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The implementation of economic order quantity for reducing inventory cost: a case study in automotive industry
Autorzy:
Riza, M.
Purba, H. H.
Mukhlisin, -
Powiązania:
https://bibliotekanauki.pl/articles/1833817.pdf
Data publikacji:
2018
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
inventory management
economic order quantity
inventory turnover ratio words
Opis:
The EOQ model is one of the oldest classic production scheduling models. The EOQ mathematical models have been established within the scope of operations management to determine the optimal inventory level. The most widely used model is the EOQ model. This journal research uses descriptive research design. A survey was conducted on automotive components of a Japanese company in Indonesia. The company is one of the fastest growing industrial company among automotive component companies. The main products are copper materials used by the automotive industry for lamps, switches, electrical panel components two-wheeled vehicles and four-wheeled vehicles. The Japanese company seeks to meet increasing customer demand but on the other hand strive to obtain optimal inventory costs, as well as demand by parent companies in Japan for faster money turnover or otherwise known as Inventory Turnover Ratio (ITR) and must be in quantity minimum or small. This means the goods in the order must be as required.
Źródło:
Research in Logistics & Production; 2018, 8, 4; 289-301
2083-4942
2083-4950
Pojawia się w:
Research in Logistics & Production
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Methods of minimalization of coolant flow rate in the grinding processes - the review
Autorzy:
Czapiewski, W.
Powiązania:
https://bibliotekanauki.pl/articles/95313.pdf
Data publikacji:
2017
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
grinding process
grinding wheel
minimum quantity lubrication
MQL
minimal quantity cooling
MQC
cold air guns
CAG
szlifowanie
ściernica
smarowanie
chłodzenie
dysze chłodzące
Opis:
The article describes the role and types of cooling lubricants used in grinding processes. Conventional methods of coolants delivery into the grinding zone were described, such as: flood method, high-pressure jet method, centrifugal coolant provision method as well as methods method to minimize coolant flow rate: minimum quantity lubrication (MQL), minimum quantity cooling (MQC) and minimum quantity cooling lubrication (MQCL). Against this background, a methods were presented to completely eliminate grinding fluid from the grinding process (dry grinding) like: impregnated grinding wheels and cold air guns (CAG).
Źródło:
Journal of Mechanical and Energy Engineering; 2017, 1, 2; 117-122
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Une larme de cognac et un soupçon de lait – à propos de quelques quantifieurs nominaux marquant une petite quantité
Autorzy:
Izert, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/1041545.pdf
Data publikacji:
2019-12-30
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
collocation
quantification
quantifieur nominal
quantité
intensité
substantive quantifier
quantity
intensity
Opis:
Dans cet article nous analysons des collocations qui constituent la suite DET N1 de N2 et servent  à exprimer habituellement une (très) petite quantité ou une quantité minime de liquide. Les paraphrases de ce type de collocations données par les dictionnaires de langue comme ‘petite quantité de N’, ‘un peu de N’ ne renvoient qu’à une partie du sens apporté par ces quantifieurs nominaux dont le sens exact est beaucoup plus complexe et nuancé. Par exemple, une pointe de whisky indique non seulement une petite quantité d’alcool mais désigne aussi une intensité faible de son goût. De même, la combinatoire de ces collocatifs attestée par les dictionnaires de langue n’est pas aussi large que celle confirmée par l’usage écrit récent dans les textes provenant des données numérisées. Ces données permettent de distinguer quelques types de N2 d’après la nature des objets de référence qu’ils désignent (cf. toutes sortes de boissons (y compris les alcools) ou toutes sortes de produits liquides mais aussi les produits massifs alimentaires ou non alimentaires et les idées abstraites – sentiments, émotions, etc. et même, ce qui peut paraître surprenant, les styles musicaux).
In this paper, I wish to present the analysis of collocations DET N1`de1` N2 in French, which is usually used to denote small or minimal amounts of a liquid. Dictionary paraphrases of the collocation referring to a ‘small amount of N` (fr. `petite quantitè de N) ) or ‘some N`(fr. `un peu de N) do not always describe the meaning and value of these expressions accurately. For example, ‘une pointe de whisky’ indicates not only a very small amounts of alcohol, but also a delicate touch of taste and, thus, a low degree of its intensity. Also the connectivity of DET N 1`de` with N2 described in dictionaries differs from the one found in the actual contemporary text use. DET N1`de` connects not only with nouns that mean different types of drinks (including alcohol/alcoholic) or liquids, but also with nouns denoting non-countable solids or abstract concepts referring most often to feelings and emotions as well as, surprisingly, music.
Źródło:
Acta Universitatis Lodziensis. Folia Litteraria Romanica; 2019, 14; 121-130
1505-9065
2449-8831
Pojawia się w:
Acta Universitatis Lodziensis. Folia Litteraria Romanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wdrażanie energooszczędnych mierników bieli mąki w młynarstwie
Implementation of novel measure device (MR-3) of flour white in corn milling
Autorzy:
Woźnicka, K.
Sadkiewicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/2071286.pdf
Data publikacji:
2010
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
jakość mąki
pomiar ilości popiołu
flour quality
ash quantity measurement
Opis:
Omówiono charakterystykć nowatorskiego miernika bieli typ MB-3M oraz zastosowanie w laboratoriach můynarskich i naukowo-badawczych do okreúlania typów mŕki w miejsce okreúlania iloúci popioůu metodŕ spalania próbki. Wykazano korzyúci ekonomiczne i BHP oraz oszczćdnoúci energetyczne wdroýeń.
Characteristics of novel white measure of MB-3M type and its use in m ing and scientific-research laboratories to specify types of flour in situ ? a quantity of ash via combustion method are discussed. Economic benel workplace safety and energy savings of implementations are demonstrat.
Źródło:
Inżynieria i Aparatura Chemiczna; 2010, 5; 132-133
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design and experiments using a spiral-liquid-solid fluidized bed system
Autorzy:
Sha, J.
Liang, L.
Liu, B.
Xie, G.
Peng, Y.
Powiązania:
https://bibliotekanauki.pl/articles/110520.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
liquid-solid fluidized bed
spiral unit
coal separation
water quantity
Opis:
Liquid-solid fluidized bed (LSFB) has been widely known and used for separation of coarse coal particles (normally larger than 0.25 mm). The process of separation by LSFB needs fluidization water from the bottom to the top of LSFB. The fluidization water is formed by the water addition at the bottom of the LSFB. Normally the quantity of water addition is very large, which increases the burden of water treatment in coal preparation processes. In this investigation, a spiral unit was introduced into the conventional LSFB and the new separation equipment was named S-LSFB. The spiral unit could provide an upward force for the upward movement of coarse low density coals into the concentrate, and hence the quantity of water addition for fluidization water may be reduced. Samples of 0.5-0.25 mm size fraction coal were used to investigate the difference in separation performance between S-LSFB and LSFB. It was found that the separation performance of S-LSFB was nearly equal to that of LSFB. S-LSFB may be beneficial to coarse coal separation in coal preparation plant since the burden of water treatment can be reduced by the application of S-LSFB.
Źródło:
Physicochemical Problems of Mineral Processing; 2015, 51, 2; 427-434
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
D’une horde de barbares à une horde de pensées – à propos de quelques quantifieurs nominaux figuratifs d’origine militaire en français et en polonais
From ‘une horde de barbares’ to ‘une horde de pensées’ – about some nominal quantifiers of military origin in French and Polish
Autorzy:
Izert, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2109541.pdf
Data publikacji:
2019-12-30
Wydawca:
Uniwersytet w Białymstoku. Wydawnictwo Uniwersytetu w Białymstoku
Tematy:
collocation
quantification
quantifieur nominal
quantité indéterminé
substantive quantifier
undetermined quantity
Opis:
Le but de cette étude est l’analyse des collocations quantitatives qui constituent en français la suite DÉT. N1 de N2 et en polonais N1 suivi de N2 au génitif. Le DÉT. N1 DE (N1 en polonais) est un quantifieur nominal d’origine militaire. L’inventaire des quantifieurs nominaux qui sont l’objet de cette étude comporte cinq noms français renvoyant, au sens propre, à une unité militaire tactique (une armée, un bataillon, une horde, une légion, un régiment) et au sens figuré à un (très) grand ensemble ou rassemblement de personnes, d’animaux ou d’objets concrets (par ex. une armée d’agents secrets, des bataillons de casseroles, une horde de chiens sauvages, une l´egion de fourmis, un régiment de domestiques, etc.) ou encore à une (très) grande quantité indéterminée d’objets abstraits (par ex. une armée de pensées, une horde de sentiments, etc.) et leurs correspondants polonais (par ex. armia pielęgniarek, batalion butelek, legiony owadów, hordy myśli, etc.). Nous analyserons les propriétés syntaxiques et sémantiques de ce type de quantifieurs nominaux ainsi que leur combinatoire.
This article presents the analysis of collocations that act as indicators of large undefined quantity. They have a structure in French DÉT. N1 de N2 and in Polish N1 N2 (where N2 is used in genetivus). D´ET. N1 DE (N1 in Polish) is nominal quantifier of military origin. The set of nominal quantifiers which are the subject of this analysis consists of 5 French nouns denoting in a literal sense a military unit (e.g. une armée, un bataillon, une horde, une l´egion, un régiment) and in a figurative sense large group of persons or cluster of people, animals, concrete objects (e.g. une armée d’agents secrets, des bataillons de casseroles, une horde de chiens sauvages, une l´egion de fourmis, un régiment de domestiques, etc.) or very large undefined quantity of abstract objects (e.g. une armée de pensées, une horde de sentiments, etc.) and the corresponding Polish collocations (e.g. armia pielęgniarek, batalion butelek, legiony owadów, hordy myśli, etc.). We also present the analyse of syntactic and semantic features of quantifiers and nouns that most often connect with them.
Źródło:
Białostockie Archiwum Językowe; 2019, 19; 125-139
1641-6961
Pojawia się w:
Białostockie Archiwum Językowe
Dostawca treści:
Biblioteka Nauki
Artykuł
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