Post-occupancy evaluation of a designed community health centre in Bangladesh- Lessons to be learnt for future planning and design

^*Jasmin Ara Begum, Prof. Dr.

             Ahsanullah University of Science and Technology, Dhaka.

Architecture and Weight optimization of ANN Using Sensitive Analysis and Adaptive Particle Swarm Optimization

Muhammad Shah Faisal^*, Khairul Hasan Md.; Moinul Haque Mohammad; and Ahmed Sumon

             Ahsanullah University of Science and Technology, Dhaka.

Treatment of Textile Wastewater in Bangladesh

Prof.  Dr. Md. Mahbubul Haque^*

Bangladesh is heavily involved with textile production and export. Over the years a lot of textile mills were established in the country mostly in and around Dhaka city. Large number of these textile mills generates and discharge waste waters. In this article the present scenario of textile wastewater treatment i<<Selection in Document>>n Bangladesh is discussed. The main effluent generating industries are (i) Knit dyeing units, (ii) woven dyeing units, (iii) Denim plants, (iv) Printing units, and (v) Garments washing units. Different dyes and chemicals are required to treat different fibres. While different stage of operation generates different types of effluents. Different dye generates different level of toxicity. Basically two types of treatment philosophies are adopted and the corresponding plants are designated as (i) Physico-Chemical Plants where effluent is treated by physico chemical process followed by biological treatment, and (ii) 100% Biological plants, where the effluent is treated by only biological process. Other forms of pollution like air pollution and noise pollution is also discussed.

             Ahsanullah University of Science and Technology, Dhaka.

Abstract

A composite material is a combination of two or more chemically different materials with a distinct interface between them. The main components of composite materials are fibres and matrix. In this study a series of epoxy composite laminates reinforced with glass, carbon, aramid and hybrid (glass/carbon, glass/aramid) fabrics with different weave structures and area densities are prepared. This thesis is to study the curing cycle of epoxy resin by Differential Scanning Calorimetry (DSC) and influence of resin uptake percentage on variation of reinforcing fibre type and geometry. For determination of curing cycle of the epoxy resin, several experiments have been carried out using DSC. The analysis of the physical properties of the composites laminates indicates that  resin uptake percentage depends on the area density of the fabric. Lower area density fabric has higher resin uptake than higher density fabric.

Search for an affordable shelter for urban poor

Md. Afzal Hossain¹ & Prof. Khairul Enam²

The paper aims to search for an affordable housing for the urban poor in Bangladesh, where the basic human needs are greatly fulfilled with improved living conditions. Worldwide low cost housing is a subsidized sector to some extent but the total achievement is found to be very little compared with the enormity of the problem. The low cost housing issues are addressed all over the developing countries according to their respective socio-cultural and economic aspects which again have a wide variation in strategies and goals. It is a general conscientious that there is a need for reforms in policy planning level for equitable distribution of resources to all sections of the population.

The Government of Bangladesh built some low cost houses at Tongi, Demra, Mirpur and Bhasentec to meet the need of homeless people. These developments could not offer much to the targeted shelter-less families as a whole. The housing situation of Dhaka city is characterized by very high land price with ever increasing price of building materials and labour.

The paper attempts to find out guidelines for a sustainable low cost housing for the urban poor particularly for Dhaka city. This is understood that to realize the above objective there will be a series of reforms and changes required in housing finance, amortization, land distribution and infrastructure layout that needs to be accommodated under the existing situation of management and administration. It also includes the study of different cost effective building materials, structural systems, durability, building size and form, social acceptance and land required according to BNBC.

             Ahsanullah University of Science and Technology, Dhaka.

Avenue - The Beauty of City

Architect Ayasha Siddiqua^*

Avenue, the window of city, space for breathing, the beauty of city. It enhances the prettiness, good looks of any city. Though our lots of emerging urban issues we have few avenues which are one of main attractive places for urban life. Besides its own purpose these avenues can be used for recreational and breathing space for cit dwellers, lots for holiday market, shelter space for emergency-some natural disaster (earth quake), above all its beautification can contribute to the overall beauty of city.

             Ahsanullah University of Science and Technology, Dhaka.