A Construction Technique for Group Divisible (v-1,k,0,1) Partially Balanced Incomplete Block Designs (PBIBDs)

Group Divisible PBIBDs are important combinatorial structures with diverse applications. In this paper, we provided a construction technique for Group Divisible (v-1,k,0,1) PBIBDs. This was achieved by using techniques described in literature to construct Nim addition tables of order 2n, 2≤n≤5 and (k2,b,r,k,1)Resolvable BIBDs respectively. A “block cutting” procedure was thereafter used to generate corresponding Group Divisible (v-1,k,0,1) PBIBDs from the (k2,b,r,k,1)Resolvable BIBDs. These procedures were streamlined and implemented in MATLAB. The generated designs are regular with parameters(15,15,4,4,5,3,0,1);(63,63,8,8,9,7,0,1);(255,255,16,16,17,15,0,1) and (1023,1023,32,32,33,31,0,1). The MATLAB codes written are useful for generating the blocks of the designs which can be easily adapted and utilized in other relevant studies. Also, we have been able to establish a link between the game of Nim and Group Divisible (v-1,k,0,1) PBIBDs.

Investigating Mechanical Properties of Sustainable Concrete Admixing Wollastonite Micro Fibre and Granite Block Cutting Waste

Due to rapid urbanization around the world, production of cement concrete has increased several times, in turn, affect the ecosystem by the depletion of natural resources and emission of greenhouse gases. In this study, a sustainable approach has been made by partially admixing ordinary Portland cement with wollastonite micro fiber and natural fine aggregate with granite block cutting waste. The mechanical characteristics of concrete samples such as compressive strength, flexural strength, density and split tensile strength were conducted to evaluate the influence of wollastonite micro fiber and granite block cutting waste on different mixes. Different concrete mixes were casted by partially substituting ordinary portland cement with constant 10% wollastonite micro fiber and fine aggregate with granite block cutting waste at different substitution level of (0%, 10%, 20%, 30%,40% and 50%) by weight. The partial substitution of wollastonite micro fiber and granite block cutting waste enhanced the mechanical properties of cement concrete.

Investigations on book cutting by circular knife with eccentric blade movement

The paper describes investigations on new method of the book cutting by using special circular knife with eccentric blade movement. Analysis of kinematic parameters of book block cutting shows, that by using eccentric circular cutting knife the cutting process may be realized in two different modes: continuous cutting – with the constant contact between cutting edge and cut material, and interrupted cutting process - with the impulse cutting knife action to treated material. The results of the conducted experimental studies confirm the kinematic analysis of the cutting process.

Mother’sKnowledge Toward Fine Motoricof Baby Growing in 2-9 Months In Midwife" S "

Introduction: Motor skills is one of proces of growing for children, it must be faced in their life, its fine motor or gross motor. The ability run as well as their age and the maturity of nerve and muscles of children. The development of fine motoric control or hand-eye coordination skills represent are important part of motoric development. Theexample of fine motoric activities, the ability to move objects out of hand, scribbling, the Block, cutting, writing, etc. The purpose of this study is to determine the Mother Knowledge To Development Of Fine Motoric Of Baby Growing In 2-9 Month In Midwifery Chlinical “S” Sangsit Village. Method: This type ofthis study uses descriptive. Thecollecting data use questionnaire sheet by using purposive sampling with sample 30 people. Result: The results showed 30 respondents mostly have enought knowledge 60%. So it can be conclude that most respondents have enough knowledge in fine motor development in the growth and development in 2-9 months. Conclusion: Based on the results of data analysis that has been done the results is knowledge of mother concerning fine motor development in the growth and development of infants in 2-9 can be interpreted that from 30 respondents most of them enough knowledge that is as much as 60%. Keywords: Knowledge, fine motoric growth, infants in 2-9 months