In this paper, the application of the second law of thermodynamics to boundary layer flow over a stretching surface with the presence of slip boundary condition and nanoparticles fractions is investigated. The model applied for the nanofluid incorporates the effects of Brownian motion as well as thermophoresis. A similarity solution is proposed. The solution depends on the Lewis number Le, Prandtl number Pr, slip factor b, suction/injection parameter λ, Brownian motion number Nt and thermophoresis number Nt. The effects of these six parameters on velocity, concentration and temperature profiles are discussed. The influence of the same parameters, the Reynolds number and the dimensionless group parameter on the entropy generation is also studied. It was found that the entropy generation was strongly impacted by these parameters.
The “upper unit” micaschists of the Edough Massif have undergone a low to moderate degree of metamorphism. The studied micaschist are composed of two distinct groups of rocks that are characterized by a typical metamorphic mineralogy. A first group comprised only weakly foliated garnet micaschist. The second group located near the first, is lacking garnet but contains large amounts of andalusite blasts. This obvious change in mineralogy indicates mobility of matter. This mobility is documented by evaluating the transfer using chemical and mineralogical variations in successive petrographic rock samples. In the micaschists of the Edough Massif, the transition from garnet micaschists to andalusite micaschists is not due to local changes of thermobarometric conditions. All rocks suffered the same P-T conditions. Neither can the mineralogical change be attributed to alteration. The variation of the chemical alteration Index (CIA) is not significant. The mineralogical changes thus are attributed to circulation of fluids that were freed during deformation.
corporate entrepreneurship (CE) is important for a company's survival, profitability and growth. CE refers to the activities a firm undertakes to stimulate innovation and encourage calculated risk taking throughout its operations. These activities reinforce the company's position in existing markets while allowing it to enter new and perhaps more lucrative growth fields. CE is an important factor for companies to achieve organizational goals. There are many researches that explain the role of CE in the today organizations. But the main question of this study is “does CE help human resource manager to improve employee’s empowerment?” In order to fully utilize their human resources, managers of entrepreneurial organization empower their employees. So in this study the relation between some contextual factors of CE and employee’s empowerment was evaluated.
Session Initiation Protocol (SIP) is a powerful signaling protocol that increasingly used for administrating Voice over IP (VoIP) phone calls. SIP authentication mechanism is based on HTTP Digest authentication, which this scheme is insecure; such as off-line password guessing attacks and impersonate other parties and etc. So proposed different schemes to secure the SIP authentication. In the year 2012, Tang et al. proposed a SIP authentication protocol using elliptic curve cryptography (ECC), but their scheme is insecure against off-line password guessing and Registration attacks. We proposed an ECC-based authentication scheme for SIP to overcome such security problems and analysis of security of the ECC-based protocol.
This paper is done to suggest a much more reliable method to forecast earnings using of data mining. Most studies in this area of research are based on the statistical and econometric models, which might encounter difficulties when dealing with the nonlinearity of financial data. Although data mining has already proved to be successful in many business applications, little research has been done on integrating financial statements' analysis with its techniques. This study utilizes Multi-layer Perception (MLP) and Radial Basis Function (RBF) techniques. In this way, it examines eight features of income statement of companies listed in Tehran Stock Exchange from 2020 to 2025. The results shows that MLP and RBF approaches respectively demonstrate about 96% and 98% efficiency of classification rate .
Aim of work: Assess Coriandrum sativum essential oil for its chemical composition, hypoglycemic effect, antioxidant activity on glutathione perioxidase and antidiabetic effects on pancreas and kidney in streptozotocin induced diabetic rats. Materials and Methods: Thirty male albino rats were divided into three groups where diabetes was induced in two groups of them. Coriandrum sativum essential oil was analysed using gas chromatography, and administered to a group of them (40 mg/kg b.w. orally) for 21 days according to its LD50. Serum glucose and glutathione were measured in addition to histological examination of kidney and pancreas. Results: The major components of coriander oil are linalool (40.9%), geranyl acetate (12.8%) and γ-terpinene (10.6%) . In the diabetic group coriander essential oil significantly reduced serum glucose from 162.5±3.19 (mg/dl) to 72.96±1.73 (mg/dl);(p<0.05) and increased glutathione peroxidase level from 59.72±2.78 (u/g Hb) to 124.83±2.31(u/g Hb);(p<0.05) . The kidney and pancreas of the diabetic rats subjected to coriander showed some protective effects against diabetic pathological changes. Conclusion: Our findings confirm the hypoglycemic and antioxidant activity of Coriandrum sativum L. oil, besides improving kidney and pancreas pathological changes as a result of induction of diabetes. These could be contributed to the synergistic action of its bioactive compounds.
Private Finance Initiative (PFI) offers an alternative to the conventional procurement of public service infrastructure. Originated form the United Kingdom (UK) from its public sector reforms, it has since been widely used in many countries such as Japan, Italy and France. The Malaysian government in the past six years has officially announced the adoption of PFI for its construction and infrastructure projects in order to promote greater involvement of the private sector in delivering public services. This paper aims at exploring the true nature of the Malaysian adoption of PFI, against the British experience; by extensive literature review of the official documents published by government bodies and government-link organisations in relation to the implementation of PFI for both countries. To support the literature findings, interview sessions were conducted with Malaysian government agencies where PFI is engaged. Empirical analysis indicates that Malaysia has a unique model of PFI, where it differs from UK in terms of its definition, financing system, and risks allocation. This paper hopes to supplement and improve knowledge in the management of PFI projects in Malaysia, primarily on the possible improvements that could be executed in strengthening PFI implementations in Malaysia by learning from the UK experience.
