Browsing by Author "Hasan, Jahidul"

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Automated feedback test generation and functionality testing for UI development with self-guided recommendation
(BRAC University, 2023-01) Hasan, Md.Tanvir; Durjoy, S.M. Hazzaz; Hasan, Jahidul; Binte Zafar, Mahazabin; Hossain, Dr. Muhammad Iqbal
UI development is the most integral part of the Software Development Life Cycle and testing the functionality of the UI is also as much important during the Software Testing Life Cycle of any software project. Without proper testing, we will remain unaware of how an application is working and in which scenario the application fails to do what was intended. Graphical User Interface is directly related to user experience and pretty much determines the future usage of that application, so it is important to make the application responsive, user-friendly, and simple with a proper functioning interface. UI development and testing the functionality is very important and also a time and resource-consuming process as the GUI has to be fault free. To do that, every permutation of the GUI functionality needs to be tested to launch the application in time. An android application consists of many core and composite components and to make such a seamless and fault-free application, every component’s functionality has to fulfill its required functions. On one hand, testing the functionality of these components is necessary, on the other hand, the position of these components on the user interface is also as much important. As a result, a recommendation system is a must for the UI developer to save time during UI development which will make it easier for the developer to place each component in the correct position. Testing out all the functionality of a component is time consuming. Even though some tools make the testing easier, the necessity of an automated tool is felt during the UI development that can make sure that the UI developer is getting necessary recommendations of the component’s position and also able to check for himself if the components are reacting as it was intended to do. As a result, a huge amount of time and resources will be saved during software development. So in this paper, we intended to work on proposing a system that may give us the privilege of UI development and component functionality testing automation. functionality testing automation.
Enhancement of Human Anatomy and Nervous System Learning Using Mobile Augmented Reality Application
(Daffodil International University, 2019-12) Hasan, Jahidul
Advancements of recent technology allows the delivery of educational materials to be highly interactive. Augmented reality (AR) is one of the most promising technology that augments reality with computer generated imagery, objects, information etc. and allows user interaction. By providing visualization and interactive 3D models, it allows students to understand any abstract concept on any time, at any place easily. In this work we have developed an AR based mobile application that can create an interactive 3D view of human skeleton and nervous system by using a target image captured a mobile phone camera. The main motive of this application is to help the medical students and school level science students to learn human anatomy and nervous system in an interactive way so that they can enhance their learning procedure. This research narrates the concept, application development an results of the pilot test. This test is conducted by the medical students of different medical colleges of Bangladesh. We have done this pilot test to get the users' experiences from technical viewpoint. According to this test we can concluded that students were satisfied with this application in terms of the features, usability, feasibility and understandability.
Natural breeding performance in different saline water pens, crablets rearing and cannibalism in juvenile phase of mangrove mud crab (Scylla olivacea) in earthen mangrove pens
(Desalination and Water Treatment, 2024-07) Hannan, Abdul; Munir, Mohammad Bodrul; Jamy, Meherunnessa; Habib, Kazi Ahsan; Hasan, Jahidul; Asdari, Roslianah; Nondi, Showmitro; Eissa, El-Sayed Hemdan; Eissa, Moaheda E.H.
The current study focused on natural breeding techniques using locally available mud crab broods during breeding season. The breeding trial was tested in artificially created earthen pens that designed with mangrove plants and salt tolerance grass. Mature brood crabs were collected from local rivers and equally distributed in 20 L black color plastic containers in three different salinities (T1 = 24ppt, T2 = 26ppt, and T3 = 28ppt) and covered with black cloth. The river salinity was 26ppt during breeding season that is considered as control(T2), and treatment T1 and T3 were prepared artificially mixing with water and sea salt respectively. Broods are reared in containers until hatching and zoea was transferred to earthen pens immediately after hatching. Zoea were reared in earthen pens until turns to crablet(0.027 ± 0.005 g). The broods as well as crablet were identified through molecular barcoding and confirmed species as Scylla olivicea. Besides, morphometric characters like weight(126.22 ± 0.19 g), carapace length(6.36 ± 0.08 cm), carapace width(9.08 ± 0.08 cm), carapace color(brownish to brownish green), Anterolateral margin and teeth (3.79 ± 0.05 cm), abdomen length(3.04 ± 0.02 cm), hand (5.50 ± 0.03 cm), carpus(2.54 ± 0.04), antenna (2.69 ± 0.07), frontal margin(2.90 ± 0.07 cm), dactylus(3.13 ± 0.06 cm), thoracic sternites(4.17 ± 0.10), merus(4.16 ± 0.11 cm) etc. are also assessed during the experiment. The hatching rate, survival %, incubation period and other parameters are significantly different among the treatments. The highest hatching rate was observed in T2(91.34 ± 4.61 %) and lowest was in T1(57.98 ± 1.38) whereas the highest survival rate was recorded in T2(10.53 ± 1.56) and lowest observed in T1(2.87 ± 0.68). The order of incubation was T1(12.3 days)>T3(11 days)>T2(8.67days) observed during experiment. The cannibalism rate was also estimated in this experiment and observed cannibalism rate was 71.20 ± 2.08. Natural mud crab breeding is easy and can be applicable in fields at low cost with significant survival rate.