Public spaces and social urban interaction a case study in Johor Baharu, Malaysia

The different usage of public places in urban areas is the focus of this study. It concentrates on the use of public places in Wong Ah Fook located in Johor Bahro city centre. The study is going to examine the way that different people utilize public places and to examine how social interactions vary by age, gender or place. Moreover, this study investigates on the physical qualities of public places in the case study. The consideration of findings is on their relation of policies due contested and shared places, safety and security, interactional relationships, and the managing of public places. Regarding the aim of this study, two methods approaches which consist of questionnaire and observation approaches is undertaken. Therefore, eight types of existing public places that considered representative of the public places of the case study as whole is carried out. In addition, due data analysis, this study investigates on SPSS software and snapshots about public activities on study area for analyzing the data of questionnaire and observation respectively. As result, most well-known and active public places from the most to least are identified. Moreover, lack of facilities and elements due decreasing interactional tasks and factors which encourage people visiting each chosen public places are revealed. In addition, the duration of visiting public places and the favorable times for users to visit public places are investigated

The role of different sliding resistances in limit analysis of hemispherical masonry domes

A limit analysis method for masonry domes composed of interlocking blocks with non-isotropic sliding resistance is under development. This paper reports the first two steps of that work. It first introduces a revision to an existing limit analysis approach using the membrane theory with finite hoop stresses to find the minimum thickness of a hemispherical dome under its own weight and composed of conventional blocks with finite isotropic friction. The coordinates of an initial axisymmetric membrane surface are the optimization variables. During the optimization, the membrane satisfies the equilibrium conditions and meets the sliding constraints where intersects the block interfaces. The results of the revised procedure are compared to those obtained by other approaches finding the thinnest dome. A heuristic method using convex contact model is then introduced to find the sliding resistance of the corrugated interlocking interfaces. Sliding of such interfaces is constrained by the Coulomb’s friction law and by the shear resistance of the locks keeping the blocks together along two orthogonal directions. The role of these two different sliding resistances is discussed and the heuristic method is applied to the revised limit analysis method

Fractional-Wrapped Branes with Rotation, Linear Motion and Background Fields

We obtain two boundary states corresponding to the two folds of a fractional-wrapped D$p$-brane, i.e. the twisted version under the orbifold $\mathbb{C}^{2}/\mathbb{Z}_{2}$ and the untwisted version. The brane has rotation and linear motion, in the presence of the following background fields: the Kalb-Ramond tensor, a $U(1)$ internal gauge potential and a tachyon field. The rotation and linear motion are inside the volume of the brane. The brane lives in the $d$-dimensional spacetime, with the orbifold-toroidal structure $T^n \times \mathbb{R}^{1, d-n-5} \times\mathbb{C}^{2}/\mathbb{Z}_{2}$ in the twisted sector. Using these boundary states we calculate the interaction amplitude of two parallel fractional D$p$-branes with the foregoing setup. Various properties of this amplitude such as the long-range behavior will be analyzed.Comment: 19 pages, Latex2e, no figur