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The car fleet management model with including expectations of the users

100%

Szczepański E. , Nivette M. , Jacyna-Gołda I. , Izdebski M.

tom Vol. 25, No. 4

489--500

The paper presents a certain approach to fleet management in the company, taking into account the mobility of employees and the selection of vehicles for tasks. The main objective is to indicate the factors that significantly affect the proper selection of vehicles for the task, as well as concurrently meeting recipients' needs. The general model for fleet management was presented, taking into account not only the mobility of employees but also the method of obtaining funds for the replacement of greener cars. The current approach is based on the car purchase model in the form of credit, low-purchase leasing, and supervision over the use process and operating costs by the company's internal resources. The problem solved in the article concerns the analysis of entrusting fleet management to specialized Car Fleet Management (CFM) companies. It was pointed out that in this calculation model, CFM companies have to take into account many variables related to vehicle selection and mobility of employees in order to perform tasks. In this article, particular attention has been paid to the areas that CFM analyses when choosing a vehicle for a given company.

Location of Processor Allocator and Job Scheduler and Its Impact on CMP Performance

100%

Zydek D. , Chma G. , Shawky A. , Selvaraj H.

tom Vol, 58, No. 1

9-14

High Performance Computing (HPC) architectures are being developed continually with an aim of achieving exascale capability by 2020. Processors that are being developed and used as nodes in HPC systems are Chip Multiprocessors (CMPs) with a number of cores. In this paper, we continue our effort towards a better processor allocation process. The Processor Allocator (PA) and Job Scheduler (JS) proposed and implemented in our previous works are explored in the context of its best location on the chip. We propose a system, where all locations on a chip can be analyzed, considering energy used by Network-on-Chip (NoC), PA and JS, and processing elements. We present energy models for the researched CMP components, mathematical model of the system, and experimentation system. Based on experimental results, proper placement of PA and JS on a chip can provide up to 45% NoC energy savings.

Poles and zeros assignment by state feedbacks in positive linear systems

72%

Kaczorek T.

tom Vol. 31, No. 3

593--605

Poles and zeros assignment problem by state feedbacks in positive continuous-time and discrete-time systems is analyzed. It is shown that in multi-input multi-output positive linear systems by state feedbacks the poles and zeros of the transfer matrices can be assigned in the desired positions. In the positive continuous-time linear systems the feedback gain matrix can be chosen as a monomial matrix so that the poles and zeros of the transfer matrices have the desired values if the input matrix B is monomial. In the positive discrete-time linear systems to solve the problem the matrix B can be chosen monomial if and only if in every row and every column of the n × n system matrix A the sum of n−1 its entries is less than one.

Umowa przelewu wierzytelności a podatek dochodowy od osób fizycznych

72%

Głowacka K.

nr 31

Purchase and sale of receivables has certain effects in the area of civil law and also tax law. Transfer of the debt is an agreement, which may bring to the purchaser, in the future, certain income. In the other hand, an income tax is a tax imposed on individuals or entities that varies with the income or profits of the taxpayer. The article is focused on the analysis of issues related to the taxation of income from assignment of receivables with personal income tax, as well as issues of including the expense on purchase of receivables to costs of earning income.

Obrót wierzytelnościami rodzi określone skutki zarówno w sferze prawa cywilnego, jak i prawa podatkowego. Przelew wierzytelności to umowa, która może przynieść nabywcy w przyszłości pewien przychód, dlatego takie zdarzenie jest objęte zakresem przedmiotowym podatku dochodowego od osób fizycznych. Artykuł jest poświęcony analizie zagadnień związanych z opodatkowaniem podatkiem dochodowym od osób fizycznych przychodów z umowy przelewu wierzytelności. Szczegółowo została przedstawiona problematyka momentu powstania obowiązku podatkowego z tytułu uzyskania przez nabywcę przychodów z przelewu wierzytelności oraz kwestia zaliczenia wydatku na nabycie wierzytelności do kosztów uzyskania przychodu.

Eigenvalues assignment in uncontrollable linear systems

58%

Kaczorek T.

tom Vol. 70, nr 6

art. no. e141987

It is shown that in uncontrollable linear system x = Ax + Bu it is possible to assign arbitrarily the eigenvalues of the closed-loop system with state feedbacks u = Kx, K ∈ ℜn⨉m if rank [A B] = n. The design procedure consists in two steps. In the step 1 a nonsingular matrix M ∈ ℜn⨉m is chosen so that the pair (MA,MB) is controllable. In step 2 the feedback matrix K is chosen so that the closed-loop matrix Ac = A − BK has the desired eigenvalues. The procedure is illustrated by simple example.