The students’ speaking anxiety: Psycho-social approach

This thesis presents research about “Analyzing the Students Speaking Anxiety by Using Psycho-social Approach” The sample consists of 10 students of Al-hasib class at the second grade SMA Islam Athirah Bone. The objective of this research are (1) to analyze the reduction of the students’ speaking anxiety by using psycho-social approach. (2) to know the factors that cause students of SMA Islam Athirah Bone to get anxiety in Speaking. This research uses qualitative method by analyzing data using test, observation and interview.The result of the research shows that the students of the eleventh grade of Al-hasib class of SMA Islam Athirah Bone reduces anxiety in speaking by using psycho-social approach. It supported by the existence of social interaction that are often carried out able to make students more confident and no longer anxious, Controlling the students’ emotional in studying situation, Relaxation and motivation. They get more guidance from their English teachers such as being relax, preparing the preparation before studying or perform and positive thinking. The most dominant points are relaxation and motivation.The students have some factors in anxiety, they are lack of preparation, learners’ belief about language learning, fear of making mistakes and personal and interpersonal factors. The most dominant factors are lack of preparation and fear of making mistake.

B-spline contour curve approximation and deformation analysis of complex ceramic core

Complex ceramic core is the critical part for manufacturing hollow turbine blade in the investment casting process. The complex geometry, small inner structures and high-precision requirements of ceramic cores make them difficult to fabricate, and the shape and dimensional accuracy of ceramic cores are very low in factory practice. To understand the deformation characteristics of ceramic cores, a noisy points recognition algorithm, an extraction method of measuring cross-section contour points and a B-spline iterative fitting algorithm using dominant points of chord deviation are proposed. First, the cross-section contour points were provided through registration, slicing and intersection methods. Second, the noisy points were deleted by convex noisy points and concave noisy points recognition algorithms. Third, the cross-section contour curve of the ceramic core was fitted through B-spline iterative fitting method with chord deviation dominant points. The curves fitted with chord deviation points and curves fitted with local maximum curvature points were compared with simulating data and scanning data, respectively, and the results show that B-spline fitting curve needs fewer chord deviation points than local maximum curvature points, 24.4% fewer in simulation validation and 12.5% fewer in experimental validation. In the end, the bending deformation, torsion deformation and shrinkage deformation errors of ceramic core are established by fitting contour curves of serial cross sections of the ceramic core.

The Influence of the Geographical Environment over the Military Operations in the Bârgău Mountains

The analysis of geographical spaces and the way in which physical-geographic elements influence the planning and conduct of military operations is related to military geography as a component of military science. From the military point of view, the parameters of the relief are of particular importance. In this respect, in the Bârgău Mountains, the mountainous landforms, with slopes leading to the lack of viability, then the high ridges and dominant points that offer wide views, the regime of the currents, the rain, the harshness of the climate in different seasons, the high temperature variations and atmospheric pressure, are elements that oppose or which, on the contrary, can be used as a real weapon against the enemy