2021 IEEE 9th Region 10 Humanitarian Technology Conference (R10-HTC), 2021
EEG is a widely used brain recording technique for clinical and research purposes due to its non-... more EEG is a widely used brain recording technique for clinical and research purposes due to its non-invasiveness, user-friendliness and low-cost compared with other brain imaging techniques such as MRI or ECoG. The goal of this work is to build a single channel EEG acquisition and monitoring system for research and education purpose. By using discrete and locally available components, a low-cost analog frontend has been developed for EEG recording at channel Fp1 (prefrontal part of brain) location which can be interfaced with PC through Arduino UNO and can be analyzed in MATLAB platform. EEG is usually very low in amplitude (i.e. uV range) and gets contaminated by noise very easily which makes it challenging to acquire a good quality signal (i.e. good SNR). The single channel EEG recording and monitoring system that is designed and implemented in hardware can be used in various application like moving mouse cursor or build a security system like Face-unlocking. This recorded data can also be helpful for students to understand EEG better for further analysis and processing. The implemented system in hardware costs less than 25 USD whereas the available EEG device price starts from 100+ USD excluding the license cost to access the raw EEG. The developed system is tested and found that it can successfully record the EEG rhythms, especially the Alpha rhythms (dominates around 8–12 Hz frequency) during eye close.
Nursing homes are critical facilities for caring frail older adults with round-the-clock formal c... more Nursing homes are critical facilities for caring frail older adults with round-the-clock formal care and personal assistance. To ensure quality care for nursing home residents, adequate staffing level is of great importance. Current nursing home staffing practice is mainly based on experience and regulation. The objective of this paper is to investigate the viability of experience-based and regulation-based strategies, as well as alternative staffing strategies to minimize labor costs subject to heterogeneous service demand of nursing home residents under various scenarios of census. We propose a data-driven analysis framework to model heterogeneous service demand of nursing home residents and further identify appropriate staffing strategies by combing survival model and computer simulation techniques as well as domain knowledge. Specifically, in the analysis, we develop an agent-based simulation tool consisting of four main modules, namely individual length of stay predictor, indiv...
2017 IEEE Great Lakes Biomedical Conference (GLBC), 2017
Current smartphone camera can capture high-definition (HD) video. It is hard to process a lot of ... more Current smartphone camera can capture high-definition (HD) video. It is hard to process a lot of video frames for a conventional personal computer due to the high-resolution image. High configured computer can extract the color pixel information from this type of video image, though it takes unreasonable time. For this reason, we proposed a novel way to record the image pixel information in a histogram as the feature of a video image. Each image frame is converted into red, green and blue (RGB), as well as hue saturation and value (HSV) color space. Using the features from RGB and HSV color space.
Over the last decade, smartphones have changed radically to support us with mHealth technology, c... more Over the last decade, smartphones have changed radically to support us with mHealth technology, cloud computing, and machine learning algorithm. Having its multifaceted facilities, we present a novel smartphone-based noninvasive hemoglobin (Hb) level prediction model by analyzing hue, saturation and value (HSV) of a fingertip video. Here, we collect 60 videos of 60 subjects from two different locations: Blood Center of Wisconsin, USA and AmaderGram, Bangladesh. We extract red, green, and blue (RGB) pixel intensities of selected images of those videos captured by the smartphone camera with flash on. Then we convert RGB values of selected video frames of a fingertip video into HSV color space and we generate histogram values of these HSV pixel intensities. We average these histogram values of a fingertip video and consider as an observation against the gold standard Hb concentration. We generate two input feature matrices based on observation of two different data sets. Partial Least ...
2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST), 2019
In this research, we have designed and developed an EOG-based Electric Wheelchair system for pati... more In this research, we have designed and developed an EOG-based Electric Wheelchair system for patients suffering from Quadriplegia or Quadriparesis or similar condition where a person is not only unable to walk but also unable to move fingers to press a button. The designed EOG recorder is used to capture intentional eye blink and eye movements (i.e. EOG signals) performed by the patient sitting in the Wheelchair. The recorded EOG signals are then processed in Arduino platform and converted to command signals to control the movement of the wheelchair in four directions (i.e. left, right, front and back) from four different EOG signals (i.e. left, right, up and down eye movements) along with start and stop commands from intentional eye blink signals. The electric wheelchair is also designed and implemented by converting a normal chair to wheelchair with necessary motors (2 DC brushed motors), wheels, and control circuitry along with the battery power supply. The EOG system is portable, wireless and user friendly which can be worn by the patient to control the wheelchair. Test experiment with subjects suggests that the proposed EOG system can detect different eye movements with an average accuracy of 90% in controlling the wheelchair. The overall cost of the developed system is around 20,000 BDT which is affordable. The proposed system has a huge potential to be used by our country’s rural and middle-income people suffering from similar disability who can’t afford commercially available expensive automated electric wheelchairs. This work can be further modified to use in other applications for the same type of patients such as EOG controlled mouse cursor for computer use. Thus this EOG-based human-machine interface applications can significantly enhance the quality of life for such middle-income or lower-middle income patients living in the developing countries such as Bangladesh.
Asian Journal of Medical and Biological Research, 2020
The study describes traditional fishing gears and crafts available at Gumti river of Muradnagarup... more The study describes traditional fishing gears and crafts available at Gumti river of Muradnagarupazila in Cumilla district, Bangladesh. The study was carried out by the collection of primary data through surveying individual fishermen. We found that there are 6 fishing gears available in the study area. Among them, 5 types of the fishing net (i.e., cast nets, seine net, lift net, push net, gill net) and a kind of fishing trap was identified. We also found 4 different types of crafts, including dinginauka, koshanauka, chandinauka, and sototempu. Synthetic twines are used for net making, which increases the fishing efficiency significantly. The life span of these nets varies according to their building materials. Sun-drying was the best approach for net preservation rather than using any chemicals or medicine. Besides, traditionally mehogany, raintree, shill koroi, garjan, gamari, jarul, chapulis woods and bamboos were found to be boat construction materials. The boats are painted wit...
2016 IEEE International Conference on Renewable Energy Research and Applications (ICRERA), 2016
Though natural droop control technique is a familiar technique to control the voltage and frequen... more Though natural droop control technique is a familiar technique to control the voltage and frequency droop in microgrid application, due to some limitations to handle different cases of application, at present time, it is not appreciable to the scientists and researchers world-wide and virtual droop control technique is developing into the most prominent control technique to regulate the frequency and voltage droop in smart grid system. In this paper, two distinct unit commitment strategies, one for islanded operation and another for grid-tied operation, are proposed for the natural gas generators backed microgrid arrangement to enhance the overall efficiency of the system and significantly scale down the fuel consumption. These novel control frameworks offer revamped implementation of renewable energy resources and minimization of the natural gas generator by using a unit commitment algorithm. Besides that, here, the virtual droop control is demonstrated for the grid tied operation of the microgrid arrangement. Furthermore, all the necessary algorithms are illustrated with proper schematics and the results are verified by Matlab simulations.
2016 19th International Conference on Computer and Information Technology (ICCIT), 2016
E-Service in Bangladesh has become a catalytic agent for empowering additional effective governme... more E-Service in Bangladesh has become a catalytic agent for empowering additional effective government services. This article investigates issue covering clues on IT policy about the implementation of marketable commercial services as mobile e-services under the boundary expansion issue of large organization like Mobile Network Operator. In Bangladesh, Specialized services are provided by different vendors, where the service quality is always differed, because there is no integration of such collaboration. Operators can play a vital role by enabling the service through Value Added Service (VAS). Users and providers can find solutions that can help to increase penetration of this untouched sector. In this article, we organize some issues, provisioning approximately resilient guideline to the operators, so that operators cannot play monopoly and ensure a healthy competition. It concentrate on the effects of within and between standards race and competition between operators on performance developing and adopting new VAS services like e-health, as swelling of penetration of mobile services. Our empirical exploration provides an indication of introduction of specialized VAS service over Mobile Network, so users of the core services will be migrated to new data services. Finally, the control of the service level agreement of e-services with fair practice of competition among operators to positively change the curve of specialized service penetration is investigated.
This paper represents a simplified approach to build and operate Martian Rover in order to carry ... more This paper represents a simplified approach to build and operate Martian Rover in order to carry out complex tasks. The robot IUT Mars Rover, had been successfully tested on simulated Martian terrain at European Rover Challenge 2015, Poland organized by European Space Foundation. It is built on popular simplified rocker bogie suspension system, a robotic arm, sensors integrated with interactive applications. The research work is mostly focused on vision and enhancement of computational efficiency. The wirelessly controlled mars rover is also capable of autonomous ride with GPS and has RGB-D camera for smooth control and depth sensing. In this paper we will discuss the overall design mechanism and the technologies used along with the operating algorithms for different rover functionalities.
2016 5th International Conference on Informatics, Electronics and Vision (ICIEV), 2016
To enhance the efficacy of antennas, filters and microwave circuits, EBG structures have been dev... more To enhance the efficacy of antennas, filters and microwave circuits, EBG structures have been developed into most notable framework considering their unique electromagnetic and sophisticated properties. This article investigates the relationship between the aspect ratio of annular ring and performance of the coupled-line filter. A number of methods, uniform distribution of ring patterns with constant filling factor 0.35 and lumped circuit model, method of moments for numerical analysis are used. Originally, the parametric comparison has been demonstrated reviewing the selectivity, 3-dB cut-off frequency and Q factor. Consequently, not only a very sharp selectivity of 56.67 dB/GHz with narrow bandwidth, low insertion loss in the passband but also wide stopband up to 13GHz with Q factor of 118 with 0.69% deviation are achieved. This structure should ease the task of designers of designing a compact matching network for the microwave receiver with high Q factor and sharp selectivity.
2015 18th International Conference on Computer and Information Technology (ICCIT), 2015
This paper presents a phoneme based Bangla Text to Speech (TTS) Synthesis framework which uses a ... more This paper presents a phoneme based Bangla Text to Speech (TTS) Synthesis framework which uses a new approach for recording Bangla phoneme to improve the speech quality. Main objective of our method is to produce more natural speech sound during Bangla text to speech conversion. In this approach, the size of the dictionary remains small, but produces more smooth and natural sounds than any other phoneme, syllable or diphone based approaches. In the proposed framework, the voice sound of each Bangla alphabet is recorded. Afterwards, the recorded voice sound is separated into their constituent phonemes by a voice cutter. This dataset can be used for future conversion of input text into its corresponding natural sounding speech from a sequence of phonemes. Before generating the phonemes sequence for each word, we normalized the text by considering numbers, abbreviations, acronyms, currency, dates and URLs. Our implemented system supports UNICODE input for Bangla text.
ABSTRACT: This paper presents seismic analysis of a three-span deck girder bridge. A finite eleme... more ABSTRACT: This paper presents seismic analysis of a three-span deck girder bridge. A finite element model to analyze the deck girder bridge has been developed by using finite element software called ANSYS. The entire work has been carried out in two steps. In the first step, a three dimensional model of the bridge has been subjected to equivalent static earthquake loading by following AASHTO guideline. In the second step, Response Spectrum analysis has been performed. Then the design forces and moments at the column bases of the bridge are obtained by using the above two methods. Finally a comparative study of the design values has been performed between those two methods mentioned above. From the entire study it has been found that the magnitude of the axial forces are almost same in those two methods but the design moments and shear forces vary significantly. In case of design moment, the result found from response spectrum method (RSM) is about 1.74 times of the design value obta...
Nasopharyngeal carcinoma (NPC) is a highly invasive and metastasis-prone epithelial cancer. The p... more Nasopharyngeal carcinoma (NPC) is a highly invasive and metastasis-prone epithelial cancer. The paucity of effective treatment strategies for recurrent and metastatic NPC is the major cause for stagnating survival rate of NPC. Therefore, it's urgent to understand the molecular mechanisms underlying NPC progression and identify novel avenues for targeted therapy. It has emerged recently that microRNAs are potential pro-tumorigenic or tumor-suppressive factors that participate in oncogenesis. In this study, we found that miR-744 expression was upregulated in NPC specimens compared to nasopharyngeal epithelium (NPE) tissue, and miR- 744 upregulation was significantly associated with TNM stage, tumorigenesis and metastasis. Functional studies revealed that miR-744 acts as a novel tumor promotor in NPC. Moreover, we determined that miR-744 targets ARHGAP5 (Rho GTPase activating protein 5), a protumorigenic gene, by directly interacting with its promoter and thereby regulating its exp...
2021 IEEE 9th Region 10 Humanitarian Technology Conference (R10-HTC), 2021
EEG is a widely used brain recording technique for clinical and research purposes due to its non-... more EEG is a widely used brain recording technique for clinical and research purposes due to its non-invasiveness, user-friendliness and low-cost compared with other brain imaging techniques such as MRI or ECoG. The goal of this work is to build a single channel EEG acquisition and monitoring system for research and education purpose. By using discrete and locally available components, a low-cost analog frontend has been developed for EEG recording at channel Fp1 (prefrontal part of brain) location which can be interfaced with PC through Arduino UNO and can be analyzed in MATLAB platform. EEG is usually very low in amplitude (i.e. uV range) and gets contaminated by noise very easily which makes it challenging to acquire a good quality signal (i.e. good SNR). The single channel EEG recording and monitoring system that is designed and implemented in hardware can be used in various application like moving mouse cursor or build a security system like Face-unlocking. This recorded data can also be helpful for students to understand EEG better for further analysis and processing. The implemented system in hardware costs less than 25 USD whereas the available EEG device price starts from 100+ USD excluding the license cost to access the raw EEG. The developed system is tested and found that it can successfully record the EEG rhythms, especially the Alpha rhythms (dominates around 8–12 Hz frequency) during eye close.
Nursing homes are critical facilities for caring frail older adults with round-the-clock formal c... more Nursing homes are critical facilities for caring frail older adults with round-the-clock formal care and personal assistance. To ensure quality care for nursing home residents, adequate staffing level is of great importance. Current nursing home staffing practice is mainly based on experience and regulation. The objective of this paper is to investigate the viability of experience-based and regulation-based strategies, as well as alternative staffing strategies to minimize labor costs subject to heterogeneous service demand of nursing home residents under various scenarios of census. We propose a data-driven analysis framework to model heterogeneous service demand of nursing home residents and further identify appropriate staffing strategies by combing survival model and computer simulation techniques as well as domain knowledge. Specifically, in the analysis, we develop an agent-based simulation tool consisting of four main modules, namely individual length of stay predictor, indiv...
2017 IEEE Great Lakes Biomedical Conference (GLBC), 2017
Current smartphone camera can capture high-definition (HD) video. It is hard to process a lot of ... more Current smartphone camera can capture high-definition (HD) video. It is hard to process a lot of video frames for a conventional personal computer due to the high-resolution image. High configured computer can extract the color pixel information from this type of video image, though it takes unreasonable time. For this reason, we proposed a novel way to record the image pixel information in a histogram as the feature of a video image. Each image frame is converted into red, green and blue (RGB), as well as hue saturation and value (HSV) color space. Using the features from RGB and HSV color space.
Over the last decade, smartphones have changed radically to support us with mHealth technology, c... more Over the last decade, smartphones have changed radically to support us with mHealth technology, cloud computing, and machine learning algorithm. Having its multifaceted facilities, we present a novel smartphone-based noninvasive hemoglobin (Hb) level prediction model by analyzing hue, saturation and value (HSV) of a fingertip video. Here, we collect 60 videos of 60 subjects from two different locations: Blood Center of Wisconsin, USA and AmaderGram, Bangladesh. We extract red, green, and blue (RGB) pixel intensities of selected images of those videos captured by the smartphone camera with flash on. Then we convert RGB values of selected video frames of a fingertip video into HSV color space and we generate histogram values of these HSV pixel intensities. We average these histogram values of a fingertip video and consider as an observation against the gold standard Hb concentration. We generate two input feature matrices based on observation of two different data sets. Partial Least ...
2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST), 2019
In this research, we have designed and developed an EOG-based Electric Wheelchair system for pati... more In this research, we have designed and developed an EOG-based Electric Wheelchair system for patients suffering from Quadriplegia or Quadriparesis or similar condition where a person is not only unable to walk but also unable to move fingers to press a button. The designed EOG recorder is used to capture intentional eye blink and eye movements (i.e. EOG signals) performed by the patient sitting in the Wheelchair. The recorded EOG signals are then processed in Arduino platform and converted to command signals to control the movement of the wheelchair in four directions (i.e. left, right, front and back) from four different EOG signals (i.e. left, right, up and down eye movements) along with start and stop commands from intentional eye blink signals. The electric wheelchair is also designed and implemented by converting a normal chair to wheelchair with necessary motors (2 DC brushed motors), wheels, and control circuitry along with the battery power supply. The EOG system is portable, wireless and user friendly which can be worn by the patient to control the wheelchair. Test experiment with subjects suggests that the proposed EOG system can detect different eye movements with an average accuracy of 90% in controlling the wheelchair. The overall cost of the developed system is around 20,000 BDT which is affordable. The proposed system has a huge potential to be used by our country’s rural and middle-income people suffering from similar disability who can’t afford commercially available expensive automated electric wheelchairs. This work can be further modified to use in other applications for the same type of patients such as EOG controlled mouse cursor for computer use. Thus this EOG-based human-machine interface applications can significantly enhance the quality of life for such middle-income or lower-middle income patients living in the developing countries such as Bangladesh.
Asian Journal of Medical and Biological Research, 2020
The study describes traditional fishing gears and crafts available at Gumti river of Muradnagarup... more The study describes traditional fishing gears and crafts available at Gumti river of Muradnagarupazila in Cumilla district, Bangladesh. The study was carried out by the collection of primary data through surveying individual fishermen. We found that there are 6 fishing gears available in the study area. Among them, 5 types of the fishing net (i.e., cast nets, seine net, lift net, push net, gill net) and a kind of fishing trap was identified. We also found 4 different types of crafts, including dinginauka, koshanauka, chandinauka, and sototempu. Synthetic twines are used for net making, which increases the fishing efficiency significantly. The life span of these nets varies according to their building materials. Sun-drying was the best approach for net preservation rather than using any chemicals or medicine. Besides, traditionally mehogany, raintree, shill koroi, garjan, gamari, jarul, chapulis woods and bamboos were found to be boat construction materials. The boats are painted wit...
2016 IEEE International Conference on Renewable Energy Research and Applications (ICRERA), 2016
Though natural droop control technique is a familiar technique to control the voltage and frequen... more Though natural droop control technique is a familiar technique to control the voltage and frequency droop in microgrid application, due to some limitations to handle different cases of application, at present time, it is not appreciable to the scientists and researchers world-wide and virtual droop control technique is developing into the most prominent control technique to regulate the frequency and voltage droop in smart grid system. In this paper, two distinct unit commitment strategies, one for islanded operation and another for grid-tied operation, are proposed for the natural gas generators backed microgrid arrangement to enhance the overall efficiency of the system and significantly scale down the fuel consumption. These novel control frameworks offer revamped implementation of renewable energy resources and minimization of the natural gas generator by using a unit commitment algorithm. Besides that, here, the virtual droop control is demonstrated for the grid tied operation of the microgrid arrangement. Furthermore, all the necessary algorithms are illustrated with proper schematics and the results are verified by Matlab simulations.
2016 19th International Conference on Computer and Information Technology (ICCIT), 2016
E-Service in Bangladesh has become a catalytic agent for empowering additional effective governme... more E-Service in Bangladesh has become a catalytic agent for empowering additional effective government services. This article investigates issue covering clues on IT policy about the implementation of marketable commercial services as mobile e-services under the boundary expansion issue of large organization like Mobile Network Operator. In Bangladesh, Specialized services are provided by different vendors, where the service quality is always differed, because there is no integration of such collaboration. Operators can play a vital role by enabling the service through Value Added Service (VAS). Users and providers can find solutions that can help to increase penetration of this untouched sector. In this article, we organize some issues, provisioning approximately resilient guideline to the operators, so that operators cannot play monopoly and ensure a healthy competition. It concentrate on the effects of within and between standards race and competition between operators on performance developing and adopting new VAS services like e-health, as swelling of penetration of mobile services. Our empirical exploration provides an indication of introduction of specialized VAS service over Mobile Network, so users of the core services will be migrated to new data services. Finally, the control of the service level agreement of e-services with fair practice of competition among operators to positively change the curve of specialized service penetration is investigated.
This paper represents a simplified approach to build and operate Martian Rover in order to carry ... more This paper represents a simplified approach to build and operate Martian Rover in order to carry out complex tasks. The robot IUT Mars Rover, had been successfully tested on simulated Martian terrain at European Rover Challenge 2015, Poland organized by European Space Foundation. It is built on popular simplified rocker bogie suspension system, a robotic arm, sensors integrated with interactive applications. The research work is mostly focused on vision and enhancement of computational efficiency. The wirelessly controlled mars rover is also capable of autonomous ride with GPS and has RGB-D camera for smooth control and depth sensing. In this paper we will discuss the overall design mechanism and the technologies used along with the operating algorithms for different rover functionalities.
2016 5th International Conference on Informatics, Electronics and Vision (ICIEV), 2016
To enhance the efficacy of antennas, filters and microwave circuits, EBG structures have been dev... more To enhance the efficacy of antennas, filters and microwave circuits, EBG structures have been developed into most notable framework considering their unique electromagnetic and sophisticated properties. This article investigates the relationship between the aspect ratio of annular ring and performance of the coupled-line filter. A number of methods, uniform distribution of ring patterns with constant filling factor 0.35 and lumped circuit model, method of moments for numerical analysis are used. Originally, the parametric comparison has been demonstrated reviewing the selectivity, 3-dB cut-off frequency and Q factor. Consequently, not only a very sharp selectivity of 56.67 dB/GHz with narrow bandwidth, low insertion loss in the passband but also wide stopband up to 13GHz with Q factor of 118 with 0.69% deviation are achieved. This structure should ease the task of designers of designing a compact matching network for the microwave receiver with high Q factor and sharp selectivity.
2015 18th International Conference on Computer and Information Technology (ICCIT), 2015
This paper presents a phoneme based Bangla Text to Speech (TTS) Synthesis framework which uses a ... more This paper presents a phoneme based Bangla Text to Speech (TTS) Synthesis framework which uses a new approach for recording Bangla phoneme to improve the speech quality. Main objective of our method is to produce more natural speech sound during Bangla text to speech conversion. In this approach, the size of the dictionary remains small, but produces more smooth and natural sounds than any other phoneme, syllable or diphone based approaches. In the proposed framework, the voice sound of each Bangla alphabet is recorded. Afterwards, the recorded voice sound is separated into their constituent phonemes by a voice cutter. This dataset can be used for future conversion of input text into its corresponding natural sounding speech from a sequence of phonemes. Before generating the phonemes sequence for each word, we normalized the text by considering numbers, abbreviations, acronyms, currency, dates and URLs. Our implemented system supports UNICODE input for Bangla text.
ABSTRACT: This paper presents seismic analysis of a three-span deck girder bridge. A finite eleme... more ABSTRACT: This paper presents seismic analysis of a three-span deck girder bridge. A finite element model to analyze the deck girder bridge has been developed by using finite element software called ANSYS. The entire work has been carried out in two steps. In the first step, a three dimensional model of the bridge has been subjected to equivalent static earthquake loading by following AASHTO guideline. In the second step, Response Spectrum analysis has been performed. Then the design forces and moments at the column bases of the bridge are obtained by using the above two methods. Finally a comparative study of the design values has been performed between those two methods mentioned above. From the entire study it has been found that the magnitude of the axial forces are almost same in those two methods but the design moments and shear forces vary significantly. In case of design moment, the result found from response spectrum method (RSM) is about 1.74 times of the design value obta...
Nasopharyngeal carcinoma (NPC) is a highly invasive and metastasis-prone epithelial cancer. The p... more Nasopharyngeal carcinoma (NPC) is a highly invasive and metastasis-prone epithelial cancer. The paucity of effective treatment strategies for recurrent and metastatic NPC is the major cause for stagnating survival rate of NPC. Therefore, it's urgent to understand the molecular mechanisms underlying NPC progression and identify novel avenues for targeted therapy. It has emerged recently that microRNAs are potential pro-tumorigenic or tumor-suppressive factors that participate in oncogenesis. In this study, we found that miR-744 expression was upregulated in NPC specimens compared to nasopharyngeal epithelium (NPE) tissue, and miR- 744 upregulation was significantly associated with TNM stage, tumorigenesis and metastasis. Functional studies revealed that miR-744 acts as a novel tumor promotor in NPC. Moreover, we determined that miR-744 targets ARHGAP5 (Rho GTPase activating protein 5), a protumorigenic gene, by directly interacting with its promoter and thereby regulating its exp...
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