In general, the concept of polynomials of degree less then or equal to r with coefficients from Zn (group of integers modulo n), is associative and commutative under the binary operations of usual addition. While, in this paper we define binary operations on polynomials of degree <=r with coecients from Zn, which are nonassociative and non-commutative, and thus form various AG-groupoids and AG-groups of dierent properties.\nThe constructions of these structures are provided and various properties of these structures are investigated.

This study has been conducted with the purpose of construct questionnaire of sports participation of faculty and staff at universities and confirming its validity and reliability. In this study 379 individuals from faculty members and staff of the University of Malayer city among 4000 people by using random cluster sampling method as statistical sample. In this study after examine content validity in order to examine the construct validity exploration factor analysis and for examine reliability Cronbach alpha and for data analyzing SPSS software version 32 were used. According to factor analysis the sport participation questionnaire of members of academic staff were distributed in 8 items which consisting of Psychological (5 items), family (5items), social (5 items), cultural (5 items), administrative (5 items), facilities (5 items) and economical (4 items). The reliability of questionnaire was calculated as 0/904 by using Cronbach\

Concrete is very common construction material but cracks are often appeared in structures that pose a threat to the durability and ultimately the structural integrity of concrete. Extensive work has been carried out in past on utilization of CFRP as repair material. But none of the research has been carried out to determine the effect of layers of CFRP on flexural strength of RCC beams. This work presented an experimental study to strengthen the Reinforced Concrete (RC) beams using sikawrap 230-C as a Carbon Fiber Reinforced Polymer (CFRP) wrapping with sikadur-330 as bonding material. The comparison between single and double layer of CFRP is of interest in this research. Six, small scale specimen reinforced concrete beams were repaired with CFRP and tested under three point bending test. Load deflection behavior along with crack propagation and failure of beams were also studied. Experimental results shows that beams repaired using CFRP wrapping achieved higher flexural capacity and ductility as compared with reference beam. Also further results shows that increment in second layer of fiber cause around 4-5.2% increment in flexural strength and results in higher ductility of RCC beam

Science is a way to understand and control the world where we live. Science Education enables us to make teaching and learning easy. Education policies at national level are the representative demand and the desire of the nation for overall development. Education policy translates its vision through the curriculum. The study under consideration examined all the national education policies of Pakistan since 1947. The study explored and compared the worth and weight what the education policies reserved for the development of science education, particularly at secondary level. All the national education policies (1970, 1972, 1979, 1992, 1998 & 2009), national education conference 1947, commission on national education 1959 and proposal for new education policy 1969 had deeply expressed the concern over the quality of teaching and learning in science in their respective periods. All the national education policies rightly conceived the demand to shift science education from being studied as a matter of facts and organized body of knowledge to a well-equipped approach which will adopt science as a method of study of nature. In practice, it bore less fruit because the system of education is traditional, curriculum and assessment are examination-based and examination is memory-oriented instead of testing concept formation and thinking development. All the efforts were no more than paper and lip services because of poor implementation of policies, faulty strategies, insufficient financial allocation and inappropriate training.

Let Y be a Banach space and A = (Ar)r?Z+ be an operator-valued sequence acting on Y. Let W = {W(l,r) : l ? r ? Z+} be a discrete evolution family associated to A. In this manuscript, we prove that the family W is uniformly exponentially stable(i.e., there exists a positive real number ? such that the family {e?(l?r)W(l,r) : l ? r ?Z+} is uniformly bounded) if and only if it is l?(Z+,Y )-exact admissible, i.e., for every sequence h = (hr) in l?(Z+,Y ) with h0 = 0, the solution of the discrete well known Cauchy Problem (0.1) yr+1 =Aryr +hr+1, r ?Z+, y0 = 0, lies in l?(Z+,Y ). The approach is di?erent from that given in [6], while similar characterization for uniform exponential stability that is cited in the above paper is obtain for other certain Banach spaces of sequences. The same results are also stated for autonomous version.

This paper presents a novel prototype of wheel-legged rescue robot. Firstly, the key problem of each leg’s structure was formulated and solved, which is a serial-parallel mechanism based on the serial-parallel and leg-wheeled mechanism with three degrees of freedom (3-DOF). Secondly, the coordinate systems are established, based on the space vector chain method, the geometric error source is analyzed. The influence of each error source on the terminal position error is investigated. According to the results of the sensitivity analysis, the error of the universal joint and the revolute joint must be controlled in the process of machining and assembly. Finally, the statistical models are established to describe the influence of each error source on the terminal position error.

Abstract \nThe estimation of runoff and sediment transport in mountainous areas, using the rain simulation method among others, which allows us to control the effect of water erosion on the considerable loss of arable land share and siltation of the other dams.\nThe objective of this study is to quantify runoff and sediment transport and finding mathematical models explaining the relationship between the runoff coefficient \"Kr\" and sediment concentration \"C\".\nThe rainfall simulator used in our experiment is a \"ORSTOM\". We chose the parameters according to the conditions observed in the field, namely a rain intensity (I1 = 30, I2 = 50 and I3 = 80 mm.h-1) a ground slope (P1= 12.5 and P2 = 25%) and soil moisture state (S: Dry, H: damp TH: very humid). These settings are applied to marl representing a high percentage in the mountains of Beni Chougrane in western Algeria.\nThe results show that there\