43 research outputs found

    Total Quality Management: An Islamic Perspective

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    Quality management has occupied a vast space of the management literature in general and the quality management literature in particular. Academics as well as practitioners devoted much attention to the Total Quality Management (TQM) philosophy and its impact on business performance. It is found that the roots of TQM and its successor can be traced to more than 1400 years ago in the holy book Al-Qur’?n and the teachings of Prophet Mohammad, Peace and Blessings of All?hbe upon him. Many verses in the holy Qur’an stressed the impact of good deeds and doing the right things. Not only we will explain these principles, but we will give some business applications of these principles from an Islamic perspective. This paper is therefore structured as follows. First, we will offer some of the existing concept of the quality management paradigms, literature review and suggest definition to reflect our contribution from an Islamic perspective. Second we will discuss the dimensions of the philosophical under pinning of quality management from Islamic Perspective and then principles quality management from Islamic perspective and finally quality leadership for quality management

    Study on the development of a fuzzy logic control electromagnetic actuated CVT system

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    Electromagnetic actuated continuously variable transmission (EMA-CVT) system consists of two pairs of electromagnetic actuators (solenoid) attached with primary and secondary pulley in order to develop the attraction and repulsive forces. Kinematics of EMA is established for electromagnetic actuation and clamping force. This study also focused on fuzzy logic based controller (FLC) to precisely control for pushing and pulling the sheaves. The EMA-CVT performance with controller is 28% more than that of without controller. The solenoids of the EMA were activated by varying the current supply with the (FPID) to maintain the non-linearity of the EMA in response of the vehicle traction torque demand. Result shows that 12.5 amp and 14.00 amp current supply is needed for pulling and pushing respectively. The acceleration time of the 1/4 scale car has been recorded as 5.5 s with the response of drive wheels torque

    Study on the development of a fuzzy logic control electromagnetic actuated CVT system

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    This paper conducts the preliminary research of an Electromagnetic Actuated Continuously Variable Transmission (EMA-CVT) system of quarter scale. An EMA-CVT system is consisted of two pairs of electromagnetic actuators (solenoid)attached with primary and secondary pulley in order to develop the attraction and repulsive forces. The relationships between the speed ratio and electromagnetic actuation and clamping force and output torque of the CVT are established based on the kinematics of the EMA-CVT system. This study also focused on fuzzy logic based controller (FLC) to precise control for pushing and pulling the sheaves based on the feedback of the RPM sensor and slope sensor. The EMA-CVT performance with controller is 28% more than that of the EMA-CVT without controller. The solenoids of the EMA were activated by varying the current supply with the Fuzzy-Proportional-Derivative-Integrator (FPID)to maintain the non-linearity of the CVT in response of the vehicle traction torque demand. Result shows that the solenoid able to pull the plunger in the desired distance with supply current of 12.5 amp while push the plunger to the desired distance with 14.00 amp current supply to the windings when the vehicle is considered in 10% grad. The acceleration time of the ¼ scale car has been recorded as 5.5 s with the response of drive wheels torque

    In-vitro antioxidant activities, anti-nociceptive and neuropharmacological activities of Polygonum hydropiper

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    In the present study in-vitro antioxidant activities, anti-nociceptive assessment and neuropharmacological study of the leaf extract of Polygonum hydropiper was performed. In-vitro antioxidant activity of the extracts of P. hydropiper was performed using DPPH free radical scavenging, cupric reducing antioxidant capacity, total antioxidant capacity, total phenol and total flavonoid content determination assays; anit-nociceptive activity was done by using acetic acid induced writhing method and neuropharmacological activities were assessed by  open field test and swimming test. The plant’s leaf extracts exhibit potent antioxidant activities; significant anti-nociceptive activity and neuropharmacological activity. Keywords: Polygonum hydropiper, in-vitro antioxidant activities, anti-nociceptive activity, neuropharmacological activities

    Kinematics and nonlinear control of an electromagnetic actuated CVT system for passenger vehicle

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    An electromagnetic actuated continuously variable transmission (EMA-CVT) system is developed by two sets of electromagnetic actuators (solenoid) located on primary and secondary pulley. A set of solenoids are attached to the primary and secondary pulley to develop the attraction and repulsive forces. The relationships between the speed ratio and electromagnetic actuation and clamping force and output torque of the CVT are established based on the kinematics of the EMA-CVT system. A Fuzzy Logic Controller (FLC) is developed to control the EMA precisely based on the feedback of the RPM sensor and slope sensor. The EMA-CVT performance with controller has found 28% more than the performance of the EMA-CVT without controller. The solenoids of the EMA were activated by varying the current supply with the Fuzzy-Proportional-Derivative-Integrator (FPID) to maintain the non-linearity of the CVT in response of the vehicle traction torque demand. Result shows that the solenoid is able to pull the plunger in the desired distance with supply current of 12.5 amp while push the plunger to the desired distance with 14.00 amp current supply to the windings when the vehicle is considered in 10% grade. The acceleration time of the ¼ scale car has been recorded as 5.5 s with the response of drive wheels torque

    Prevalence and Diversity of Avian Haematozoan Parasites in Wetlands of Bangladesh

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    The parasites of genera Haemoproteus, Plasmodium, and Leucocytozoon are well-known avian haematozoa and can cause declined productivity and high mortality in wild birds. The objective of the study was to record the prevalence of haematozoan parasites in a wide range of wetland birds in Bangladesh. Six species of Haemoproteus, seven species of Plasmodium, one unidentified species of Leucocytozoon, and one unidentified microfilaria of the genus Paronchocerca were found. Data on the morphology, size, hosts, prevalence, and infection intensity of the parasites are provided. The overall prevalence among the birds was 29.5% (95 out of 322 birds). Of those, 13.2% (42 of 319) of birds were infected with Haemoproteus spp., 15.1% with Plasmodium spp. (48 of 319) and 0.6% with Leucocytozoon spp. (2 of 319). Two birds were positive for both Haemoproteus sp. and Plasmodium sp. A single resident bird, Ardeola grayii, was found positive for an unidentified microfilaria. Prevalence of infection varied significantly among different bird families. Wild birds of Bangladesh carry several types of haematozoan parasites. Further investigation with a larger sample size is necessary to estimate more accurately the prevalence of haematozoan parasites among wild birds as well as domestic ducks for better understanding of the disease ecology

    Perceptions about Telemedicine among Populations with Chronic Diseases amid COVID-19: Data from a Cross-Sectional Survey

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    Chronic diseases, including non-communicable diseases (NCDs), have arisen as a severe threat to health and socio-economic growth. Telemedicine can provide both the highest level of patient satisfaction and the lowest risk of infection during a pandemic. The factors associated with its usage and patient adherence are not visible in Bangladesh's resource-constrained settings. Therefore, this study aimed to identify perceptions about telemedicine among populations with chronic diseases amid the COVID-19 pandemic. A closed-ended self-reported questionnaire was created, and the questionnaire was written, reviewed, and finalized by a public health investigator, a psychiatrist, and an epidemiologist. The data for this study were collected from individuals using simple random sampling and snowball sampling techniques. Ethics approval was granted, and written/verbal consent was taken before interviews. Most of the participants showed a positive attitude towards telemedicine. People aged 35-54 years old and a higher level of education were less frequently associated with willingness to receive telemedicine services for current chronic disease (WRTCCD) than their counterparts. People living in urban areas and lower-income participants were more strongly associated with WRTCCD. Additionally, people who did not lose their earnings due to the pandemic were less strongly associated with WRTCCD. However, the main strength of this research is that it is a broad exploration of patient interest in several general forms of telehealth. In Bangladesh, there are many opportunities for telemedicine to be integrated into the existing healthcare system, if appropriate training and education are provided for healthcare professionals

    Global injury morbidity and mortality from 1990 to 2017 : results from the Global Burden of Disease Study 2017

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    Correction:Background Past research in population health trends has shown that injuries form a substantial burden of population health loss. Regular updates to injury burden assessments are critical. We report Global Burden of Disease (GBD) 2017 Study estimates on morbidity and mortality for all injuries. Methods We reviewed results for injuries from the GBD 2017 study. GBD 2017 measured injury-specific mortality and years of life lost (YLLs) using the Cause of Death Ensemble model. To measure non-fatal injuries, GBD 2017 modelled injury-specific incidence and converted this to prevalence and years lived with disability (YLDs). YLLs and YLDs were summed to calculate disability-adjusted life years (DALYs). Findings In 1990, there were 4 260 493 (4 085 700 to 4 396 138) injury deaths, which increased to 4 484 722 (4 332 010 to 4 585 554) deaths in 2017, while age-standardised mortality decreased from 1079 (1073 to 1086) to 738 (730 to 745) per 100 000. In 1990, there were 354 064 302 (95% uncertainty interval: 338 174 876 to 371 610 802) new cases of injury globally, which increased to 520 710 288 (493 430 247 to 547 988 635) new cases in 2017. During this time, age-standardised incidence decreased non-significantly from 6824 (6534 to 7147) to 6763 (6412 to 7118) per 100 000. Between 1990 and 2017, age-standardised DALYs decreased from 4947 (4655 to 5233) per 100 000 to 3267 (3058 to 3505). Interpretation Injuries are an important cause of health loss globally, though mortality has declined between 1990 and 2017. Future research in injury burden should focus on prevention in high-burden populations, improving data collection and ensuring access to medical care.Peer reviewe

    Abstracts from the 3rd International Genomic Medicine Conference (3rd IGMC 2015)

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    Energy efficient electromagnetic actuated CVT system

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    A continuously variable transmission (CVT) system transmits the engine/battery power to the car driving wheel smoothly and efficiently.Several types of CVT already been developed to improve the transmission losses while maintaining acceleration time. However,most of the CVT has some constraints in the actuation mechanism which led us to develop an innovative electromagnetic actuator for CVT. Simplified mathematical equations have been developed for the kinematics analysis of clamping forces of the CVT and electromagnetic forces of EMA. The EMA has been developed for scale car with two sets of solenoid. Each of the two sets has been equipped with primary and secondary pulleys for pushing and pulling the movable sheave. The solenoid is operated by controlling the supply current with a fuzzy logic controller. A simulation based fuzzy logic controller has been introduced here for identifying the desired current of the EMA actuation. The experimental results show that the EMA develops electromagnetic forces 301 N for the supply current of 3.37 amp, which makes the acceleration time of the car in the range of 2.5~3.5 sec and electromagnetic actuated CVT system highly energy efficient
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