The main purpose of this study is to determine the initial Configuration of suborbital manned spacecraft in the conceptual design phase. During the suborbital flight path, stability of capsule is very important factor for the success of the mission. For this purpose, in this study using conventional manned spacecraft geometries which are generally blunt-cone shape, 5 Configurations of space capsule are proposed. The Configurations are numerically investigated during reentry phase at altitude of the 25 km from earth surface with Mach number 3.15 for different angles of attack. In order to determine longitudinal static stability characteristics of Configurations during re-entry phase, the pitching moment coefficients of Configurations are studied and compared to each other. Finally, the optimal Configuration of the space capsule considering system requirements and base on the suitable static stability and volumetric efficiency is proposed.

Nowadays, the fundamental role of having a purpose for life in physical and mental health has been confirmed. According to victor frankl, presence of a purpose in life gives life a meaning and increases resilience against pains and traumas. The importance of the purpose in life construct reveals the need for a reliable and valid tool to measure it. Crumbaugh and Maholick's purpose in life questionnaire is the first and one of the most applied tools for the assessment of life's purposefulness. The aim of this research is to determine the factor structure of purpose in life questionnaire. The questionnaire was administered on 206 students who were selected through random stratified sampling at Ferdowsi University of Mashhad. Exploratory factor analysis showed that there are two factors "comprehension" and "purpose" and this finding were confirmed by confirmatory factor analysis. Altogether results of this research showed factor validity of the purpose in life questionnaire with a two factor pattern

The concept of space identity with human habitation in cognitive geography has been considered in recent decades. This concept is studied in the format land-meaningfulness which is human insight in dealing with space identity and original position of community life. The land-meaningfulness has given to the meanings of human of from space identity meaning and concept that manifests it in the type of social Configuration. This research has studied the faulty identity of Qazvin Baghshahr Configuration with the noumenonology method and within the framework of the Isfahan school. The gardens around the Configuration of Qazvin Bagshahr are a smart and astutely dam against floods. In the Configuration of Qazvin Baghshahr, several bio cryptography plexsuses have maintained its sustainability and durability until today. The results of this study are presented in three statements: Some cities of Iran land – context have a faulty identity, such as Qazvin Baghshahr Configuration. People of Qazvin Baghshahr Configuration have kept this Configuration in a sustainable way for 1000 years with the land-meaningfulness which is recognition of space identity through the division of the amount of flood water in the scrolls and documents of water division and the spatial arrangement of fields and gardens. The survival of any geographical phenomenon like Qazvin Baghshahr Configuration is the result of the bio cryptographys plexsuses stability and their mechanisms during the 1000-year period.

The concept of Configuration of groups which is defined in terms of finite partitions and finite strings of elements of the group is presented by Rosenblatt and Willis. To each set of Configurations, a finite system of equations known as Configuration equations, is associated. Rosenblatt and Willis proved that a discrete group G is amenable if and only if every possible instance of its Configuration equations admits a normalized solution. In this paper we compare the existence of such solutions for different systems. We prove that if a system of Configuration equations has no normalized solution, then every system related to a refinement of the initial partition, has no normalized solution, as well. The Tarski number of a non-amenable group is the smallest number of the pieces of its paradoxical decompositions. In the present paper we also provide a relation between the Tarski numbers of the subgroups of two Configuration equivalent groups.