Slope Stability Analysis is a branch of engineering science where there are great uncertainties. Although these uncertainties have strong effects on predicting process, however in common Stability, Analysis methods their direct effects are not considered. Probabilistic slope Stability Analysis method is a suitable tool for considering uncertainties in design process. First order Taylor series approximation method is the most common probabilistic slope Stability method that is almost verified in all practical cases. In research program Proba_Slope software was written. This software has the ability to do deterministic slope Stability Analysis utilizing Bishop's method and probabilistic slope Stability Analysis based on above approximation method. The results gained from Proba_Slope were then verified using commercial software.

The aim of this study was to investigate the effect of using portulaca oleracea as a source of plant antioxidants for feeding fattening male lambs, on carcass traits, meat quality, and oxidative Stability. Twenty-one male lambs with an average weight of 24±1.5 kg and 150±15 days old were fed with one of the experimental rations included a diet without portulaca oleracea as control, a diet containing 7.5%, and a diet containing 15% portulaca oleracea, for 84 days. The muscle (Longissimus dorsi) samplewas used to determine pH, chemical composition, colorimetric properties, and oxidative Stability of meat. Meat lipid oxidation was determined after 1, 7, and 30 days of refrigerated storage using thiobarbituric acid (TBARS). The use of portulaca oleracea in diets improved meat color characteristics such as L, chroma, and Hue. The highest ash concentration and the lowest meat moisture were observed in the treatment of 15% portulaca oleracea (P<0.05). Meat pH was the lowest in the first hour after slaughter but did not differ at 24 h. Compared to the control, in both treatment groups feeding the lambs with portulaca significantly reduced the concentration of Malondialdehyde in the meat of the lambs and increased the meat oxidative Stability (P<0.05). The results of this experiment showed that feeding portulaca oleracea by improving properties such as color and increasing the meat oxidative Stability improves meat quality, which may have lead to an increase in its nutritional value in terms of human health.

Purpose: The flourishing of political parties and currents is one of the signs of the degree of development in societies. In contemporary Iran and since the formation of the constitutional movement, political currents have gone through many ups and downs and it can be said that political currents in Iran after the Islamic Revolution have not yet reached the stage of institutionalization and Stability. A characteristic feature of political currents in Iran is the divergence and division among political currents in recent decades, and this can be one of the reasons for the inStability and cross-sectional and seasonal activity of political parties in Iran. Therefore, the necessity of leading research seeks to answer the question of how factors and divergence among political currents in Iran after the victory of the Islamic Revolution can be analyzed? And what are the scenarios for the advancement of political currents in Iran?Method: To answer this question, the method of causal-layer Analysis, which is one of the qualitative methods in futures research, has been used.Findings: The research findings indicate that this divergence is due to a wide range of reasons from the level of causal systems (from the institutionalization of power to the formation of parties as elitist initiatives), worldview and discourse (from charismatic political authority to culture). Subsidiary-follower politics to myth-metaphor (Iranian individualism to belief in a strong state-weak society) can be analyzed.Conclusions: Three scenarios for the future of Iranian political currents can be considered: integration of currents as the security valve of the political system, the collapse of political currents in the traditional form, integration and consolidation in new social movements (virtualized parties).

The design of appropriate, cost-effective remedial measures requires a clear understanding of the processes that are causing the landslide. This understanding require a detailed site investigation, a reconnaissance of the landslide as soon as possible after it's occurrence can allow important observations of the processes involved. A key step in analyses of soil slope Stability is measuring or estimating the strengths of soils. Slope failures provide a valuable opportunity to estimate the strengths of materials involved in the failure. Stability analyses are performed to back-calculate strengths that could have produced a failure. Back Analysis of strengths has advantages over laboratory testing in that the scale is much larger and the materials are in their in situ state. Using site investigations and an appropriate method of Analysis it is possible to develope a model of the slope at the time that is failed. In this paper Farahzad landslide have been studied by site investigations and then have been evaluate shear strength parameter from back Analysis of failed slope.

The presence of discontinuities, the inherent variability of the rock mass and discontinuity properties, and the uncertainties associated with directions and magnitudes of the in-situstress makes the rock engineering problems challenging. The numerical modeling can assist the ground control engineers in designing and evaluating the Stability of the excavations. If extensive geological and geotechnical data are available, then detailed predictions of deformation, stress and Stability can be accomplished by performing numerical modeling. If not, still the numerical modeling can be used to perform parametric studies to gain insight into the possible ranges of responses of a system due to likely ranges of various parameters. The parametric studies can help to identify the key parameters and their impact on Stability of underground excavations. The priorities of the material testing and site investigation can be set based on the selected key parameters from parametric studies. The most important modeling methods in Stability Analysis include finite element method, finite difference method, boundary element method and Distinct element method, which are used in three static, quasi-static and dynamic conditions and in both definite and probability modes. In this report, we investigate each of these methods their weaknesses and strengths.

In this paper, we investigate Stability Analysis of fractional differential systems equipped with the conformable fractional derivatives. Some Stability conditions of fractional differential systems are proposed by applying the fractional exponential function and the fractional Laplace transform. More-over, we check the Stability of conformable fractional Lotka-Volterra system with the multi-step homotopy perturbation method to demonstrate the efficiency and effectiveness of the proposed procedure.