Monitoring and evaluation of transformers are essential to prevent their insulation failure. In this paper, the use of 2-furan-carboxaldehyde (2-FAL) and methanol (MeOH) concentrations as the main products of paper insulation degradation, and insulation condition markers, has been studied. In order to study the degradation process and production of degradation products, the thermal aging process of the transformer insulation system was implemented in laboratory conditions. The results of laboratory studies show that in the early stages of degradation the amount of MeOH is significant compared to 2-FAL. Also, the estimation of the degree of polymerization (DP) in the early stages of degradation (DP>800) through MeOH concentration and with decreasing DP (DP <800) through 2-FAL concentration is closer to the real value. The results of studies performed on 35 DISTRIBUTION transformers confirm the production of significant amounts of MeOH in the early stages of degradation. Also, the estimated DP values for the studied transformers were obtained through 2-FAL and MeOH concentration. The results show that estimating the amount of DP through MeOH concentration is associated with a probability of error of about 9% compared to estimating DP through 2-FAL concentration.

In some point of view, neither Michel Foucault nor Ibn Khaldun are considered philosophers in the conventional classifications, but both are very  important in intellectual and, of course, in philosophical contexts, especially for those who are interested in the deep study of human life from the perspective of political thought.The main concern of two thinkers, one in the 14th century, the other in the 20th century, is the issue  of POWER, although neither of them provided a precise definition of it. In this article, an attempt has been made to show the place of POWER and domination in the political thought of both thinkers by examining the thoughts of two thinkers. And in search of an answer to this question, how did Asabiyyah and industry of religion in Ibn Khaldun's thought and social control through self-technology and discipline in Foucault's thought lead to the expansion of the domination of POWER? This article is written by analytically comparing the opinions of two thinkers based on Ibn Khaldun's most important book called Muqaddimah and Foucault's late works

One of the obvious reasons for most disorders in network service provisioning is network path congestion. Congestion avoidance in today's networks is too costly and sometimes impossible. With the introduction of SDN, centralizing the equipment's control plane has become possible. This paper presents an enhanced method named ESV-DBRA to avoid congestion in multi-tenant SDN networks. At first, ESV-DBRA monitors the traffic load and delay of all network paths for each tenant individually. Then, by merging the parameters obtained from the monitoring, the Service Level Agreements (SLA), and a novel proposed cost function, it calculates the cost of the network paths per tenant. As a result, traffic for each tenant is routed through the path/paths at the lowest possible cost from the tenant's perspective. Next, the bandwidth quotas will be calculated and assigned to the tenants over their optimal routes. Afterward, whenever congestion is likely to occur in a path, ESV-DBRA automatically changes the route or bandwidth of the tenants' traffic related to this path to avoid congestion. Related algorithms are also proposed.Eventually, simulations show that the proposed method effectively increases bandwidth utilization by 10.76%.

Different types of contact, including contact between node pairs, any-contact of nodes, and contacts of the entire network, are used to characterize social relations in mobile social networks. Different modes of routing, from the point of view of message delivery semantics, encompass unicasting, multicasting, any-casting, and broadcasting. Studies have shown that using probability DISTRIBUTION functions of contact data, which is mainly assumed to be homogeneous for nodes, improves the performance of these networks. However, there exists an important challenge in studies on DISTRIBUTIONs. A lot of works apply the DISTRIBUTION of one type of contact to other types. Hence in routing applications, it causes to use of the DISTRIBUTION of one type of contact for any mode of routing. This study provides a complete solution to model each type of homogeneous contact data DISTRIBUTION and to use them in different modes of routing. We propose a routing algorithm that uses this new model. Results show that our solution improves the average latency of comparing methods Epidemic, TCCB, and DR about 3.5-times, 30%, and 45%, respectively. It achieves a delivery rate of about 5% and 6%, and average latency about 6% and 8% better than that of DR and TCCB, respectively.

In this paper, a novel risk-based, two-objective (technical and economical) optimal reactive POWER dispatch method in a wind-integrated POWER system is proposed which is more consistent with operational criteria.  The technical objective includes the minimization of the new voltage instability risk index. The economical objective includes cost minimization of reactive POWER generation and active POWER loss. The proposed voltage instability risk employs a hybrid possibilistic (Delphi-Fuzzy)-probabilistic approach that takes into consideration the operator’s experience, the wind speed and demand forecast uncertainties when quantifying the risk index. The decision variables are the reactive POWER resources of the system. To solve the problem, the modified multi-objective particle swarm optimization algorithm with sine and cosine acceleration coefficients is utilized. The method is implemented on the modified IEEE 30-bus system. The proposed method is compared with those in the previously published literature, and the results confirm that the proposed risk index is better at estimating the voltage instability risk of the system, especially in cases with severe impact and low probability. In addition, according to the simulation results compared to typical security-based planning, the proposed risk-based planning may increase the security and economy of the system due to better utilization of system resources.

A smart grid is the modern POWER grid to resolve many issues of current POWER grid systems with higher reliability, self-healing, ability to support renewable energy sources and reduction of environmental impacts. Novelty and necessity of POWER smart grid knowledge has led to feel technologies assessment is needed for development and determination the attractiveness of product and process technologies in this industry. DISTRIBUTION network is an important part of a POWER system and nearest part to the consumers that should pay special attention to it. The aim of this study was to prioritize POWER smart grid technology with respect to the attractiveness criteria in Mazandaran POWER distributed company. So, the list of key technologies related to POWER smart grid was prepared. Then 9 criteria were identified. Questionnaire was designed to obtain the experts’ point about the status of each technology in every criteria. Saw is Multiple Attribute Decision Making model for weighing the criteria, determining the relative status of each technology, group decision-making and technology assessment. The results show that moment billing, wireless, load forecasting, energy costs calculating and software are the most important technologies based on attractiveness in the Mazandaran POWER DISTRIBUTION company. Also is the basic step for planning, strategy of technologies and time management.

In this paper, we propose a new parametric DISTRIBUTION which called as the Beta Modified Weibull POWER Series (BMWPS) DISTRIBUTION. This DISTRIBUTION is obtained by compounding Beta Modified Weibull (BMW) and POWER series DISTRIBUTIONs. BMWPS DISTRIBUTION contains, as special sub-models, such as Beta Modified Weibull Poisson (BMWP) DISTRIBUTION, Beta Modified Weibull Geometric (BMWG) DISTRIBUTION, Beta Modified Weibull Logarithmic (BMWL) DISTRIBUTION, among others. We obtain closed-form expressions for the cumulative DISTRIBUTION, density, survival function, failure rate function, the r-th raw moment and the moments of order statistics. A full likelihood-based approach that allows yielding maximum likelihood estimates of the BMWPS arameters is used. Finally, application to the Aarset data are given.

This is an empirical study on POWER in the family. The structure of POWER within family has been measured in three aspects: symmetric relation, area of POWER, and the couple strategy. The study attempt to offer a definition of the democratic family, which leads to the construction of scales in order to measure the dimensions of family structure. Social survey is applied as the methodological orientation with a sample covering 200 cases. The statistical techniques used include: dispersion and central indices, bivariate and partial correlation, factor analysis, regression equations, and path analysis. The findings indicate that the structure of POWER in the south Tehran is less democratic than that of north Tehran. Results show that factors such as womens education, their employment and participation in spouse choosing would incline POWER structure closer to more democratic family, while submissive self-conception, on the part of women, and the authoritarian one, on the part of men, cause POWER structure to lean toward less democratic family.