Design of TSV-sharing topologies for cost-effective 3D networks-on-chip

The Through-Silicon Via (TSV) technology has led to major breakthroughs in 3D stacking by providing higher speed and bandwidth, as well as lower power dissipation for the inter-layer communication. However, the current TSV fabrication suffers from a considerable area footprint and yield loss. Thus, it is necessary to restrict the number of TSVs in order to design cost-effective 3D on-chip networks. This critical issue can be addressed by clustering the network such that all of the routers within each cluster share a single TSV pillar for the vertical packet transmission. In some of the existing topologies, additional cluster routers are augmented into the mesh structure to handle the shared TSVs. However, they impose either performance degradation or power/area overhead to the system. Furthermore, the resulting architecture is no longer a mesh. In this paper, we redefine the clusters by replacing some routers in the mesh with the cluster routers, such that the mesh structure is preserved. The simulation results demonstrate a better equilibrium between performance and cost, using the proposed models

The effectiveness of acceptance and commitment therapy in the quality of life and anxiety of death in women suffering from breast cancer

Objective: The effectiveness of acceptance and commitment therapy (ACT) in quality of life and death anxiety in women suffering from breast cancer. Materials and Methods: This study was a quasi-experimental research with a non-equivalent control group design. All women suffering from breast cancer and being treated at Imam Khomeini Hospital in year 2019. The sample was randomly selected. Thirty people were selected 15 of whom were randomly assigned to the experimental group and 15 were randomly assigned to the control group. During eight 90-minute sessions, the experimental group received the ACT intervention. Both groups were evaluated before and after the intervention with quality of life questionnaires and death anxiety, and multivariate analysis of covariance and variance was used to analyze the data. Data analysis was performed with SPSS24. Results: The findings suggested that the quality of life and death anxiety in the experimental group were significantly different from the control group. Conclusion: The training program based on ACT had an impact on the quality of life and death anxiety of women suffering from breast cancer.     &nbsp

Investigation of reproduction carachretistics of Cobitis taenia in southern costal of Caspian Sea

Cobitis taenia is one of the index samples and as apart of benthal fishes in the waters southern costal of Caspian Sea. In total 410 Cobitis taenia were caught. Sampling has been done by electroshocker 300 V, monthly and during one year since Oct. 2008 up to Sept. 2009 According to condition of sampling, the sum of two stations sampled monthly between 16 to 50 and has been distinguished randomly at two Kaselian and Tajoon stations of stuaries of Kazar sea. Average egg diameter of fish by Measured in the Loop was highest in April and this trend continued until May, and the average diameter in April was 36.20 Micron with SD 6.52. Investigation showed that the gonads of these fishes at sexual maturity occurs in April. Average percentage of sexual maturity index (GSI) 1.04%, respectively with SD 0.42. Average liver weight index (HSI) equal to 0.156 with SD 0.009 was calculated, so that the peak time of sexual maturity, we see a reduction in liver weight. Total length of fish at the time of sexual maturity (Lm50), with an average 67.44 mm, SD 11.17 and average weight 2.33 g and SD 0.64 was calculated. The HSI (liver weight) in spring than in other months showed a significant reduction in the loss is inversely proportional to the amount of GSI in this chapter

A Novel Type-2 Fuzzy Logic for Improved Risk Analysis of Proton Exchange Membrane Fuel Cells in Marine Power Systems Application

A marine energy system, which is fundamentally not paired with electric grids, should work for an extended period with high reliability. To put it in another way, by employing electrical utilities on a ship, the electrical power demand has been increasing in recent years. Besides, fuel cells in marine power generation may reduce the loss of energy and weight in long cables and provide a platform such that each piece of marine equipment is supplied with its own isolated wire connection. Hence, fuel cells can be promising power generation equipment in the marine industry. Besides, failure modes and effects analysis (FMEA) is widely accepted throughout the industry as a valuable tool for identifying, ranking, and mitigating risks. The FMEA process can help to design safe hydrogen fueling stations. In this paper, a robust FMEA has been developed to identify the potentially hazardous conditions of the marine propulsion system by considering a general type-2 fuzzy logic set. The general type-2 fuzzy system is decomposed of several interval type-2 fuzzy logic systems to reduce the inherent highly computational burden of the general type-2 fuzzy systems. Linguistic rules are directly incorporated into the fuzzy system. Finally, the results demonstrate the success and effectiveness of the proposed approach in computing the risk priority number as compared to state-of-the-art methods

ANALYSIS OF RELIABILITY OF COOLING SYSTEM OF TEHRAN NUCLEAR RESEARCH REACTOR BY DETERMINATION OF IMPORTANCE AND SENSITIVITY

ABSTRACT Mechanical parameters such as dimensions, forces and stresses are never absolute and in reality are a function of process changes, human factors, operation and time. Therefore, their analysis and attaining the results of importance and sensitivity analyses can be used in determination of their safety category and enhancement of their reliability and maintenance. In this paper, using fault tree analysis method, the importance and sensitivity of Tehran Nuclear Research Reactor coolant system components are determined by analysis of four probable accidents: Loss of Coolant Accident (LOCA), Loss of Flow Accident (LOFA), Loss of Heat Sink Accident (LOHA) and Loss of Offsite Power Accident (LOOP) by the help of RELAB computer code. The results are used to identify the important and sensitive components. This recognition helps to optimize the repair and maintenance resources and enhancement of reliability and availability of the reactor components

Investigating the solder mask defects impact on leakage current on PCB under condensing humidity conditions

This paper focuses on conducting a thorough investigation into the solder mask defects and their influence on the leakage current development in PCB under operating conditions. A practical commercial PCBA has been used as a reference to construct a realistic numerical model, integrating the solder mask layer through COMSOL software. Comprehensive investigations cover scenarios with and without pinholes, conducting precise electrochemical reaction simulations under critical electrical conditions for validation against experimental data. The outcomes notably reveal how pinholes level up leakage current (LC) and reshape its paths. To validate the proposed method, experiments under real operating conditions and humidity were conducted. The comparison between the simulation and experiments demonstrated the effectiveness of the numerical model

In vivo and in Vitro Antioxidant Activity of Hydro-Alcoholic Extract of Pistacia Atlantica

Abstract Background & aim: The genus Pistacia belonging to the Anacardiaceae family which consists of 15 species only three species of which, namely Pistacia vera, Pistacia Atlantica, ,and Pistacia Khinjuk grow in Iran. The aim of present study was to investigate the antioxidant activity of Pistacia Atlantica fruit hydroalcoholic extract in Yasuj. Methods: In the present experimental study, the extract was carried out with two, maceration and Soxhlet methods. For in vitro antioxidant assay, (trolex equivalent antioxidant capacity (TEAC), Diphenyl-picrylhydrazyl (DPPH) phosphomolybdenum (PMB) was conducted. For determination of antioxidant components, total phenolic and flavonoids contents were analyzed in in vitro assay. To evaluate the antioxidant activity by In Vivo method, the hydro alcoholic extract, having the most antioxidant activity, was used. 24 Wistar rats with the weight 250-300 g were examined that were randomly divided into 4 groups of 6. Group 1 (control group) used distilled water by oral route with amount of 0.5 ml/kg. Groups 2, 3, and 4 used 100, 200, and 400 mg/kg of Pistacia Atlantica hydro alcoholic extract by gavages, respectively. After 4 weeks of treatment, blood samples were collected by heart puncture. Catalase enzyme activity, Mallon dialdehyde and Ferric reducing antioxidant power were measured in rats’ plasma. ANOVA was used for data analysis. Results: Methanol extract of Pistacia Atlantica contained the maximum amount of phytochemical and antioxidant activities. A significant decrease was observed in serum malondialdehyde (MDA) of the treatment group compared to the control group (P<001).There was a significant increase in level of Catalase and Ferric reducing antioxidant power (FRAP) of treatment groups compared to the control group (P<001). Conclusion: Pistacia Atlantica extracts depending on type and system of extraction contains different antioxidant potential. Key words: Antioxidant Activity, Pistacia Atlantica, Catalase, MDA, lipid Peroxidatio