http://dspace.ewubd.edu:8080/handle/2525/2778 Tue, 31 Mar 2026 01:59:48 GMT 2026-03-31T01:59:48Z http://dspace.ewubd.edu:8080/handle/2525/2802 Book Reviews Sharmin, Iffat; Alam, Md. Manzur; Quaderi, Golan Gaus Al- Sat, 01 Jan 0001 00:00:00 GMT http://dspace.ewubd.edu:8080/handle/2525/2802 0001-01-01T00:00:00Z http://dspace.ewubd.edu:8080/handle/2525/2801 Advertisement Restriction and Tobacco consumption:A Case Study of Dhaka Rickshaw-pullers Jamila, Mariam Tobacco control policies are essential to improve the file of the poor as well as the economic welfare of the country. Bangladesh loses 5% of its GNP due to malnutrition. The level of poverty increased because of tobacco consumption both at the individual and national level. The consumption of a pack per day of an inexpensive brand like navy can constitute 4% of household income. If tobacco consumption can be eliminated, it will save US $ 15 million annually which is used to import tobacco, and will increase job opportunities by 18% if smokers spend their money on other goods and services, as well as increase investment in housing, education and health care. This paper investigates the null hypothesis that increase of advertising restriction will not decrease tobacco consumption among the poor rickshaw-pullers of Bangladesh and uses a limited version of the rational addition model. This paper shows that advertising restriction has a positive impact on the poor rickshaw pullers of Bangladesh since it decreases the consumption of tobacco. If the new law becomes effective, it can save the lives of millions of citizen from health hazard and death Sat, 01 Jan 0001 00:00:00 GMT http://dspace.ewubd.edu:8080/handle/2525/2801 0001-01-01T00:00:00Z http://dspace.ewubd.edu:8080/handle/2525/2800 Radiation Pattern and Beamwidth Control of Linear and Rectangular Array Antenna System Haque, S. Nowf Al; Alam, M. Ariful; Islam, Md. Imdadul Antenna array is one of the most prominent techniques of achieving electronic steerable bean i.e. rotation and variation of width of beam as required. This paper depicts a complete theoretical analysis of linear array antenna with transformation of the radiation pattern from a broadside to end-fire direction with change of relative phase, radiation intensity over a spherical surface, implementation of Dolph-Tschebyscheff array in reduction of side lobe of liner and rectangular array and baemdwidth control of rectangular array. Sat, 01 Jan 0001 00:00:00 GMT http://dspace.ewubd.edu:8080/handle/2525/2800 0001-01-01T00:00:00Z http://dspace.ewubd.edu:8080/handle/2525/2799 A New Symmetric key Cryptographic Algorithm for Unicode Compliant Bangla Characters Sarker, Md. Zakir Hossain; Rahman, Shaila; Rahman, M Lutfar Cryptography is the discipline that embodies principles, means, and methods for the transformation of data in order to hide its information content, prevent its undetected modification and/or prevent its unauthorized use. Now-a-day most of the organizations are increasingly dependent on electronic data for various purposes. Since data travels electronically the alarming issue is the security. Cryptographic algorithms can play vital role to resolve this issue. There are two basic types of cryptography: secret/symmetric key and public/asymmetric key. Symmetric key algorithms are the quickest and most commonly used type of encryption. Here, a single key is used for both encryption and decryption. This paper describes a new symmetric key algorithm which is applied on the Unicode compliant bangle characters. Algorithms for both also described along with the drawbacks. Since government of Bangladesh is planning to introduce e-governance this kind of cryptographic algorithm should be applied to secure various important and vital data. As per as literature are concerned, this kind of work for Unicode compliant bangle characters has not been done yet i.e. this could be the pioneer work. Sat, 01 Jan 0001 00:00:00 GMT http://dspace.ewubd.edu:8080/handle/2525/2799 0001-01-01T00:00:00Z