scholarly journals The Theoretical Necessity and Realistic Choice of the First-in-first-out Equivalent Units Method

2019 ◽  
Author(s):  
Yuguo Yang ◽  
Ying Xie
Keyword(s):  
Realistic Choice ◽  
First In First Out

PEMBUATAN APLIKASI CAR STORAGE DENGAN MENGGUNAKAN METODE FIFO ( FIRST IN FIRST OUT ) BERBASIS WEB

elektum ◽  
2017 ◽  
Vol 14 (1) ◽  
pp. 45
Author(s):  
Eka Budhy Prasetya
Keyword(s):  
First In First Out

AUTO2000 adalah jaringan jasa penjualan, perawatan, perbaikan dan penyediaan suku cadang TOYOTA yang manajemennya ditangani penuh oleh PT Astra International Tbk. PT.AUTO 2000  merupakan sebuah dealer mobil merk TOYOTA yang tersebar di beberapa daerah. PT.AUTO 2000 selalu berusaha untuk meningkatkan penjualannya dengan memperhatikan stock unit mobil yang tersedia. Dalam sistem pengolahan car storage, masalah yang ada saat ini adalah Jika ada mobil yang harus keluar dari gudang, terkadang itu bukan merupakan mobil yang pertama masuk dalam gudang. Sehingga dapat menimbulkan kerugian jika terjadi penyusutan pada stock yang lama. Dan sistem yang ada belum bersifat online sehingga jika kepala gudang ingin mengecek ketersediaan unit harus menunggu email stock unit dari admin. Penelitian ini bertujuan untuk menghasilkan sebuah sistem aplikasi yang dapat memberikan data yang akurat dimana unit yang pertama masuk merupakan unit yang pertama keluar dengan menggunakan metode FIFO (First In First Out ) dan implementasinya adalah berupa aplikasi web yang dibangun menggunakan bahasa pemrograman PHP.

scholarly journals Example of Warehouse System Design Based on the Principle of Logistics

2021 ◽  
Vol 13 (8) ◽  
pp. 4492
Author(s):  
Janka Saderova ◽  
Andrea Rosova ◽  
Marian Sofranko ◽  
Peter Kacmary
Keyword(s):  
System Design ◽  
Design Process ◽  
System Analysis ◽  
Proper Function ◽  
Logistics Systems ◽  
Starting Point ◽  
Storage Area ◽  
Area Percentage ◽  
First In First Out ◽  
Percentage Ratio

The warehouse process, as one of many logistics processes, currently holds an irreplaceable position in logistics systems in companies and in the supply chain. The proper function of warehouse operations depends on, among other things, the type of the used technology and their utilization. The research in this article is focused on the design of a warehouse system. The selection of a suitable warehouse system is a current research topic as the warehouse system has an impact on warehouse capacity and utilization and on the speed of storage activities. The paper presents warehouse system design methodology that was designed applying the logistics principle-systematic (system) approach. The starting point for designing a warehouse system represents of the process of design logistics systems. The design process consists of several phases: project identification, design process paradigm selection, system analysis, synthesis, and project evaluation. This article’s contribution is the proposed methodology and design of the warehouse system for the specified conditions. The methodology was implemented for the design of a warehouse system in a cold box, which is a part of a distribution warehouse. The technology of pallet racking was chosen in the warehouse to store pallets. Pallets will be stored and removed by forklifts. For the specified conditions, the warehouse system was designed for two alternatives of racking assemblies, which are served by forklifts. Alternative 1—Standard pallet rack with wide aisles and Alternative 2—Pallet dynamic flow rack. The proposed systems were compared on the basis of selected indicators: Capacity—the number of pallet places in the system, Percentage ratio of storage area from the box area, Percentage ratio of handling aisles from the box area, Access to individual pallets by forklift, Investment costs for 1 pallet space in EUR. Based on the multicriteria evaluation, the Alternative 2 was chosen as the acceptable design of the warehouse system with storage capacity 720 pallet units. The system needs only two handling aisles. Loading and unloading processes are separate from each other, which means that there are no collisions with forklifts. The pallets with the goods are operated on the principle of FIFO (first in, first out), which will facilitate the control of the shelf life of batches or series of products. The methodology is a suitable tool for decision-making in selecting and designing a warehouse system.

Bifurcation of rotating circular cylindrical elastic membranes

1980 ◽  
Vol 87 (2) ◽  
pp. 357-376 ◽  
Author(s):  
D. M. Haughton ◽  
R. W. Ogden
Keyword(s):  
Axial Force ◽  
Strain Energy ◽  
Elastic Strain Energy ◽  
Strain Energy Function ◽  
Angular Speed ◽  
Elastic Membrane ◽  
Axial Extension ◽  
End Conditions ◽  
Elastic Membranes ◽  
Realistic Choice

SummaryBifurcation from a finitely deformed circular cylindrical configuration of a rotating circular cylindrical elastic membrane is examined. It is found (for a physically realistic choice of elastic strain-energy function) that the angular speed attains a maximum followed by a minimum relative to the increasing radius of the cylinder for either a fixed axial extension or fixed axial force.At fixed axial extension (a) a prismatic mode of bifurcation (in which the cross-section of the cylinder becomes uniformly non-circular) may occur at a maximum of the angular speed provided the end conditions on the cylinder allow this; (b) axisyim-metric modes may occur before, at or after the angular speed maximum depending on the length of the cylinder and the magnitude of the axial extension; (c) an asymmetric or ‘wobble’ mode is always possible before either (a) or (b) as the angular speed increases from zero for any length of cylinder or axial extension. Moreover, ‘wobble’ occurs at lower angular speeds for longer cylinders.At fixed axial force the results are similar to (a), (b) and (c) except that an axisym-metric mode necessarily occurs between the turning points of the angular speed.

The Path Selection of Low Carbon Building Development

2013 ◽  
Vol 409-410 ◽  
pp. 660-663
Author(s):  
Xiao Wei Wu
Keyword(s):  
Economic Transition ◽  
Path Selection ◽  
Scientific Development ◽  
Low Carbon ◽  
Paper Briefly ◽  
Low Carbon Economy ◽  
Development Concept ◽  
Realistic Choice ◽  
Selection Of ◽  
Carbon Economy

the development of low carbon building is not only the requirement of current economic transition,it is also the realistic choice to implement Scientific Development Concept and to build "two type society". This paper briefly describes the connotation of low carbon buildings , and then illustrates the low-carbon economy background, the necessity of low carbon building development, and finally put forward the corresponding path selection.

First in, First out? The Effects of Network Externalities on Pioneer Survival

2004 ◽  
Vol 68 (1) ◽  
pp. 41-58 ◽  
Author(s):  
Raji Srinivasan ◽  
Gary L. Lilien ◽  
Arvind Rangaswamy
Keyword(s):  
Network Externalities ◽  
First In First Out

Improvements in the Analysis of Ultrasonic Scattering from Inhomogeneities in Tissue

1979 ◽  
Vol 1 (1) ◽  
pp. 44-55 ◽  
Author(s):  
S. Ø. Aks ◽  
D. J. Vezzetti
Keyword(s):  
Scattering Theory ◽  
Limited Range ◽  
Ultrasonic Scattering ◽  
Sample Geometry ◽  
Realistic Choice

The elementary scattering theory of Rayleigh and Born is extended to account for effects of finite absorption and of sample geometry including boundary refraction. Examples of the procedure are given for several scatterer configurations and results compared with those of the Rayleigh-Born procedure. It is shown that for a realistic choice of tissue parameters these effects modify the Rayleigh-Born results by factors of the order of 10 percent or less provided observations are made over a suitably limited range of angles about the backward direction.

scholarly journals Poisson hail on a hot ground

2011 ◽  
Vol 48 (A) ◽  
pp. 343-366
Author(s):  
Francois Baccelli ◽  
Sergey Foss
Keyword(s):  
Euclidean Space ◽  
Service Time ◽  
Evolution Equations ◽  
Stationary Regime ◽  
Service Discipline ◽  
Closed Sets ◽  
Random Closed Sets ◽  
Exponential Moments ◽  
First In First Out ◽  
Arrival Intensity

We consider a queue where the server is the Euclidean space, and the customers are random closed sets (RACSs) of the Euclidean space. These RACSs arrive according to a Poisson rain and each of them has a random service time (in the case of hail falling on the Euclidean plane, this is the height of the hailstone, whereas the RACS is its footprint). The Euclidean space serves customers at speed 1. The service discipline is a hard exclusion rule: no two intersecting RACSs can be served simultaneously and service is in the first-in–first-out order, i.e. only the hailstones in contact with the ground melt at speed 1, whereas the others are queued. A tagged RACS waits until all RACSs that arrived before it and intersecting it have fully melted before starting its own melting. We give the evolution equations for this queue. We prove that it is stable for a sufficiently small arrival intensity, provided that the typical diameter of the RACS and the typical service time have finite exponential moments. We also discuss the percolation properties of the stationary regime of the RACS in the queue.

scholarly journals Redução de perdas nas cadeias de frutas e hortaliças pela análise da vida útil dinâmica

2018 ◽  
Vol 21 (0) ◽  
Author(s):  
Wigberto Antonio Spagnol ◽  
Vivaldo Silveira Junior ◽  
Ericsem Pereira ◽  
Nelson Guimarães Filho
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Frequency Identification ◽  
First In First Out

Resumo A estimativa do crescimento populacional mundial de nove bilhões de pessoas, em 2050, estabelece um grande desafio para os próximos anos, considerando os problemas atuais de insegurança alimentar e o fornecimento de alimentos saudáveis, num mundo, predominantemente, de pessoas vivendo em regiões urbanas. A importância da dieta na saúde é indiscutível, sendo que, a cada dia que passa, o consumidor está mais consciente de que a saúde está diretamente relacionada a uma dieta balanceada e segura. As tecnologias aplicadas na pós-colheita de frutas e hortaliças que continuam com seu metabolismo ativo buscam manter a qualidade através dos parâmetros aparência, textura, sabor, valor nutritivo e segurança alimentar, bem como reduzir perdas qualitativas e quantitativas entre a colheita e o consumo. A combinação de tecnologias, como resfriamento rápido, refrigeração e utilização de embalagens com atmosferas modificadas ativas e passivas, aplicadas na pós-colheita, precisa estar aliada a uma adequada gestão de temperatura para cada produto, em toda a cadeia de distribuição. Assim, conforme o histórico de temperatura desde a colheita até os locais de vendas no varejo, a estimativa da vida útil torna-se uma variável altamente dinâmica. Tecnologias de RFID (Radio Frequency Identification - Identificação por Rádio Frequência) integradas a sensores podem revolucionar o transporte e o manuseio de produtos perecíveis, por meio de leituras precisas e contínuas das condições do ambiente de conservação durante a logística, interpretadas por modelos matemáticos que estimam a vida útil restante. Esta revisão descreve como a tecnologia, por meio de chips RFID integrados a sensores e associados ao uso de modelamentos matemáticos, pode ser incorporada na gestão de Centros de Distribuição, alterando a ênfase, a partir do clássico FIFO (First In, First Out - Primeiro a Entrar, Primeiro a Sair), para uma estratégia de FEFO (First Expired, First Out - Primeiro Expirado, Primeiro a Sair). Desta maneira, com o melhor conhecimento da vida útil dos produtos, espera-se menor perda, além de melhor conservação dos produtos.

scholarly journals Improved Model of Scheduling Algorithm

2018 ◽  
pp. 104-106
Author(s):  
Artur Vardanyan
Keyword(s):  
High Performance ◽  
Cluster Computing ◽  
Scheduling Algorithm ◽  
Great Influence ◽  
Cluster Management ◽  
Task Scheduling Algorithm ◽  
Long Time ◽  
Improved Model ◽  
First In First Out

Cluster computing is becoming increasingly practical for high performance computing research and development. A computer cluster is a set of connected computers that work together so that, they can be viewed as a single system. Clusters offer a scalable means of linking computers together to provide an expansive environment for hosting enterprise applications. As the number of nodes in cluster configurations grows, the cluster administration becomes more challenging. We need to study the challenges of cluster management and to provide a solution. To have an effective cluster management we need to have an effective task scheduling algorithm. With the explosive growth of information, the demand on computing is sharply increasing. Due to a large number of computing tasks, the scheduling algorithm is an important part of cluster computing and has a great influence on the quality of claster service. In cluster computing, some large tasks may occupy too many resources and some small tasks may wait for a long time based on First-In-First-Out (FIFO) scheduling algorithm. This paper provides an overview of an improved scheduling algorithm that shortens the execution time of tasks and increases the resource utilization.

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