this paper is devoted to the study of establishing sufficient conditions forexistence and uniqueness of positive solution to a class ofnon-linear problems of fractional differential equations. the boundary conditionsinvolved riemann-liouville fractional order derivative and integral. further, the non-linear function $f$ containfractional order derivative which produce extra complexity. thank to...

in this paper, we prove a common fixed point theorem for six mappings (two set valued and four single valued mappings) without assuming compatibility and continuity of any mapping on non complete metric spaces. to prove the theorem, we use a non compatible condition, that is, weak commutativity of type (kb). we show that completeness of the whole space is not necessary for the existence and uni...

the aim of this paper is to prove some common fixed point theorems for four  mappings satisfying $(psi,varphi)$-weak contractions involving rational expressions in ordered partial metric spaces. our results extend, generalize and improve some well-known results in the literature. also, we give two examples to illustrate our results.

background fiscal decentralization (fd) in many cases is encouraged as a strong means of improving the efficiency and equity in the provision of public goods, such as healthcare services. this issue has urged the researchers to experimentally examine the relationship between fiscal decentralization indicators and health outcomes. in this study we examine the effect of fiscal decentralization in...

evaluation of pre-fixed biological tissues preparation methods for atr-ftir biospectroscopy fourier transform infrared (ftir) spectroscopy in atr (attenuated total reflection) mode is a powerful tool for studying biomedical samples, which can provide important structural information on the molecular composition. currently, formalin fixation and paraffin preservation (ffpp) is the preferred source ...

In fixed-priority scheduling the priority of a job, once assigned, may not change. A new fixed-priority algorthm for scheduling systems of periodic tasks upon identical multiprocessors is proposed. This algorithm has an achievable utilization of (m + 1)/2 upon m unit-capacity processors. It is proven that this algorithm is optimal from the perspective of achievable utilization, in the sense tha...

In this paper, we present a conjecture for exact best-case response times of periodic released, independent real-time tasks with arbitrary deadlines that are scheduled by means of fixed-priority pre-emptive scheduling (FPPS). We illustrate the analysis by means of an example. Apart from having a value on its own whenever timing constraints include lower bounds on response times of a system to e...

In order to standout from competition in the global market, companies must rely on competent suppliers. The supplier development program is designed to create and maintain a network of competent suppliers, which has a major influence on the competitive advantages of a buying company. The existing literatures on supplier development all adopt “one-size-fit-all” strategies. However, to allocate s...

The problem of effectively scheduling soft tasks whilst guaranteeing the behaviour of hard tasks has been addressed in many papers and a large number of techniques have been proposed. The dual priority mechanism is an intuitively simple method with low overheads. A hard task is assigned two priorities. Upon invocation, the task starts executing with a low priority and it is promoted to a high p...

In this paper we study hard real-time systems composed of periodic preemptive tasks and address the scheduling problem on specific hardware platforms. For such a system, the failure to satisfy any constraint may have disastrous consequences. An important starting point for the analysis of such systems is the basic task model considered. In this paper we introduce a new model, relative to the on...