Evaluation of Rotation Effects in Steel Structures with Irregular Plan Under Earthquake in Project Management

Abstract. Because of lacking specific relationships and criteria for steel structures with bending frames and braces along with the uneven bearing system in Iranian regulations, the need to study the behavior of such structures has been considered by researchers. In this paper, with three-dimensional modeling of steel structures with six types of plans, each of which indicates a degree of asymmetry of the load-bearing system, a total of 18 models of structures under two types of linear dynamic loading and overload were studied. It is indicated that with increasing unevenness of the load-bearing system, the rotation of the structures also increases. This increase is up to 18 times more for short-term structures and up to five times more than for parallel structures than parallel structures. The discrepancy causes unexpected results. Increasing the height of the structure reduces the rotation in the diaphragm. There is no difference between the rotation of the diaphragms in terms of elastic and inelastic, while the load in the other direction of these changes for the inelastic state is sometimes up to more than 50 times the elastic state

Prediction of Water Level Fluctuations of Chahnimeh Reservoirs in Zabol Using ANN, ANFIS and Cuckoo Optimization Algorithm

Forecasting changes in level of the reservoir are important in Construction, design and estimate the volume of reservoirs and also in managing of supplying water. In this study, we have used different models such as Artificial Neutral Network (ANN), Adaptive Neuro Fuzzy Inference System (ANFIS) and Cuckoo Optimization Algorithm (COA) for forecasting fluctuations in water level of Chahnimeh reservoirs in south-east of Iran. For this purpose, we applied three most important variables in water levels of the reservoir including evaporation, wind speed and daily temperature average to prepare the best entering variables for models. In addition, none accuracy of error in estimation of hydrologic variables and none assurance of exiting models are the result of their sensitivity to the educational complex for teaching of models and also preliminary decoration before beginning general education has been estimated. After comparing exiting and confidence interval of the ANN and ANFIS has been found that the result of ANFIS model is better described than other model because it was more accurate and does have lesser assurance

The Persian Light Verb dādan 'to give': Causation and More

This paper aims to investigate the light verb constructions (LVCs) formed with the light verb dādan ‘to give’ in Persian by employing the principles of cognitive lexical semantics. It examines the semantic relationships between the heavy verb dādan and its uses as LVCs. The analysis of attested examples reveals that the use of dādan as a light verb (LV) is a function of the semantic structure of its simple verb counterpart. This suggests that its lightness status is highly systematic and can be explained in terms of cognitively driven motivations. In addition, a significant number of the LVCs express certain causation meanings, suggesting that Persian speakers tend to use the LV dādan to convey causative notions as newly emerged LVCs. This stance will constitute our line of argument to analyze the data in this study. By presenting a cognitive configuration of LVCs in Persian, the current paper can pave the way for a fine-grained theorization of typological aspects of LVCs in some other languages

Synthesis of Zinc Oxide Nanoparticles and Their Effect on the Compressive Strength and Setting Time of Self-Compacted Concrete Paste as Cementitious Composites

In the present study, the mechanical properties of self-compacting concrete were investigated after the addition of different amounts of ZnO nanoparticles. The zinc oxide nanoparticles, with an average particle size of about 30 nm, were synthesized and their properties studied with the help of a scanning electron microscope (SEM) and X-ray diffraction. The prepared nanoparticles were partially added to self-compacting concrete at different concentrations (0.05, 0.1, 0.2, 0.5 and 1.0%), and the mechanical (flexural and split tensile) strength of the specimens measured after 7, 14, 21 and 28 days, respectively. The present results have shown that the ZnO nanoparticles were able to improve the flexural strength of self-compacting concrete. The increased ZnO content of more than 0.2% could increase the flexural strength, and the maximum flexural and split tensile strength was observed after the addition of 0.5% nanoparticles. Finally, ZnO nanoparticles could improve the pore structure of the self-compacted concrete and shift the distributed pores to harmless and less-harmful pores, while increasing mechanical strength

Effect of KTP Laser on Surgically Resected Adenomas of Prostate

INTRODUCTION: Palmoplantar psoriasis could hardly be differentiated from chronic tylotic eczema both clinically and histologically. The most commonly used therapeutic options for palmoplantar psoriasis are long-term therapy with topical corticosteroids and local PUVA. Frequently, it is a recalcitrant disease. We investigated the efficacy and tolerability of the combination of topical calcipotriol with local UVA radiation in comparison with local PUVA therapy.METHODS:In a total of 43 patients with palmoplantar psoriasis, 33 were given 15 sessions of local UVA radiation and topical calcipotriol and the remainder received 15 sessions of local PUVA (psoralen + UVA radiation).RESULTS:The statistical analyses of the results showed that the effect and tolerability of both therapeutic modalities are comparable.CONCLUSION: Combination of topical calcipotriol and local UVA radiation is an optional corticosteroid-free therapeutic modality for palmoplantar  psoriasis. It has a comparable effectiveness and tolerability with local PUVA

Recent advances on happiness

Happiness plays essential role on building prosperity and success in any society. Happiness is one of the essential factors to reach prosperity and success in people’s life and jobs but happiness is not always the same as capability, but they may be correlated while capability is a necessary for having a happy life and happiness feeds back on capability in different ways. People who feel happy could better contribute to society and help other people build better future. This study performs a review on recently completed studies on factors, which influence happiness, new definitions of happiness. The study concentrates more on empirical investigations on the concept of happiness