

Articles
by
A.A. Kamil 
Total Records (
4 ) for
A.A. Kamil 





M.S. Lola
,
A.A. Kamil
and
M.T. Abu Osman


Problem statement: It is well known that, the standard approach to estimating a sample selection models shows an inconsistent estimation results if the distributional assumption are incorrect. Approach: An important progress in the last decade to develop an alternative to overcome the deficiency is through the used of semiparametric method. However, the usage of semiparametric approach still does not cover the deficiency of the model. Results: We introduced a fuzzy membership function for solving uncertainty data of a sample selection model and employed method for sample selection models, that is, the twostep estimators to estimate a model of the socalled the selfselection decision. Fuzzy Parametric of Sample Selection Model (FPSSM) is builds as a hybrid to the conventional parametric sample selection model. Conclusion/Recommendations: The result showed that as a whole, the FPSSM give a better estimate and consistent when compared to the Parametric of Sample Selection Model (PSSM). This application demonstrate that the proposed fuzzy modeling approach was quite reasonable and provides an important and significant finding compared with conventional method especially in terms of estimation and consistency. 





Md. Azizul Baten
and
A.A. Kamil


This study is concerned with the optimal control of inventoryproduction system subject to generalized Pareto distributed deterioration items. We formulated the model as a linear optimal control problem. This study deals with continuous review policy to solve the optimal control model. We obtained an explicit solution using Pontryagin maximum principle. We derive explicit optimal policies for the inventory model. It is then numerical illustrated with sidered as the sinusoidal function of time then it does not show the convergence of the optimal level. Whenever, if we take the inventory goal level is fixed the help different demand patterns examples. Whenever the goal inventory level is con then it shows the convergence of the optimal inventory towards inventory goal level. The solution of the secondorder differential equation is represented and shows the state of optimal inventory level is increasing but converges initially for the certain period of time. In this case, we found the optimal production level with time shows the slight variations with changing the shape of the demand functions. It is observed that the optimal production rates are not very sensitive to changes in the demand functions in case of generalized Pareto distribution. 




L.A. Kawsar
,
N.A. Ghani
,
A.A. Kamil
,
A. Mustafa
,
L.A. Kawsar
,
N.A. Ghani
,
A.A. Kamil
and
A. Mustafa


Occupant safety is a major concern for a building in case
of emergencies such as fire, bomb blast or earthquake. In such emergency situations,
a quick and jamfree evacuation of pedestrian trapped in a network of corridors
in buildings is most important. In this paper, we compared the throughputs for
two different restrictions on the flow direction with the unrestricted flow
for a facility. In this facility, occupants need to go through some source corridors
which consists of multiple sources and from source corridors they can choose
their nearest exiting corridors. The result indicates that in emergency situation
a restricted flow direction of pedestrian increases the throughput of the network
which eventually decreases the average evacuation time. 




M.K. Hossain
,
A.A. Kamil
,
T.A. Masron
and
M.A. Baten


This study uses environment variables in Data Envelopment Analysis (DEA) and examines the influence of environmental factors on efficiency of rice production in Bangladesh. Data was collected from Bangladesh Bureau of Statistics (BBS) and Bangladesh Meteorology Department Efficiency with and without environmental factors of three type of rice production (AUS, AMAN and BORO) are measured using data envelopment analysis. Efficiency of rice production which measured without environmental factors is explained by the environmental factors (Rainfall, Temperature and Humidity) using Tobit regression to weigh up the impact of these factors on rice production. Efficiency of BORO production with environmental factors is almost similar to the efficiency of production without environmental factors. Production efficiency of AUS and AMAN employing environmental factors is higher than that of without environmental factors. Humidity has a positive and significant effect on all types of rice production. Temperature has a negative impact on production efficiency, implying that global warming could be a cause for a decrease in efficiency of rice production. Rainfall has a positive impact only on BORO production. 





