This paper examines the current state of construction productivity in Khulna, Bangladeshand major factors that influence the productivity. A questionnaire survey was distributed to various stakeholders and construction projects in Khulna city. Ten projects in Khulna were selected for productivity assessment and a total of 100 respondents participated for ranking the influencing factors.The data were then used to calculate the productivity, and relative important index which enabled the factors to be ranked.Factors influencing the construction productivity were analyzed using an RII method.The average productivity of formwork, concrete work, brickwork and plastering work in Khulna construction industry is 3.40 sqft/hr, 4.98 cft/hr, 1.82 cft/hr and 8.16 sqft/hr respectively.Analysis of thesefactors showed that the top five ranked factors affectingconstruction productivity are labor supervision, skilled labor, availability of materials, availability of equipment’s and scheduling of work.Therefore, focus should be targetedon these factors to make the construction firms profitable as well as improving the progress in construction works.
An E-shaped micro strip patch antenna is designed and analyzed in this paper which operates in MICS (402.0-406.0MHz) band. The Performance has been observed on a body of human phantom model as well as in free space with different conducting material for the designed antenna. The height of this antenna is taken 1.5mm from the ground plane. At resonance frequency of 405 MHz the S11 parameter is obtained in free space is-23.26dB for conducting material of aluminum and-17.96dB is measured on human phantom body at 405 MHz of resonance frequency. FR4 is used as substrate material. The Specific Absorption Rate (SAR) is found to be 0.3562 W/kg by placing the antanna on human phantom model. VSWR and directivity has been analyzed also.
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