Attendance Management System for Industrial Worker using Finger Print Scanner

Attendance management is the act of managing attendance or presence in a work setting, which maximizes and motivates employee attendance thereby minimizing loss. Not only does it affect productivity, it can cost the company profits or even additional contracts. For the industrial sector attendance management system can develop alacrity among the workers to work regularly and also help them to motivate their co- worker to attend work regularly. Fingerprints are considered to be the best and fastest method for biometric identification. They are secure to use, unique for every person and do not change in one's lifetime. Fingerprint recognition is a mature field to-day, but still identifying individual from a set of enrolled fingerprints is a time taking process. This paper illustrates improvement of attendance management system based on fingerprint identification for implementation on large databases e.g. of an industry or a garments factory etc. In this project, many new algorithms have been used e.g. gender estimation, key based one to many matching, removing boundary minutiae. Using these new algorithms a new attendance management system has been developed which is faster and cheaper in implementation than any other available today in the market

Pressure-driven Flow Instability with Convective Heat Transfer Through a Curved Rectangular Duct of Small Aspect Ratio

AbstractThe present study investigates unsteady fluid flow through a curved rectangular duct of aspect ratio 0.5 and curvature 0.5. Numerical calculations are carried out by using a spectral method, and covering a wide range of the pressure gradient parameter, the Dean number, 6000 ≤ Dn ≤ 12000 and the Grashof number, 100 ≤ Gr ≤ 2000 for two cases of the duct, Case-I: Stationary duct and Case-II: Rotating duct. The outer wall of the duct is heated while the inner wall cooled. The main concern of the present study is to discuss the unsteady flow behavior i.e whether the unsteady flow is steady-state, periodic, multi-periodic or chaotic, if Dn or Gr is increased. For a stationary duct, we investigate the unsteady flow characteristics for the Dean number 6000 ≤ Dn ≤ 12000 and the Grashof number 100 ≤ Gr ≤ 2000, and it is found that the unsteady flow undergoes in the scenario steady-state → periodic → multi-periodic → chaotic, if Gr is increased. For rotating duct, however, we investigate the unsteady flow characteristics for the Taylor number −100 Tr ≤ 1000, and it is found that the unsteady flow undergoes through various flow instabilities, if Dn or Gr is increased. Typical contours of secondary flow patterns and temperature profiles are also obtained, and it is found that the unsteady flow consists of a single-, two-, and multi-vortex solutions

Spectral Numerical Calculation of Non-isothermal Flow through a Rotating Curved Rectangular Duct with Moderate Curvature

The present paper investigates non-isothermal flow characteristics through a rotating curved rectangular duct, where co-existence of the rotational forces and fluid temperature gradients leads to the emergence of rotation-induced buoyancy effects. A spectral-based numerical scheme is employed as the principal tool for the simulation while Chebyshev polynomial and collocation method as the secondary tools. The outer wall of the duct is heated while the inner wall cooled, the top and bottom walls being thermally insulated. The emerging parameters controlling the flow characteristics are the rotation parameter, i.e., the Taylor number Tr ranging 0 to 2000, the Grashof number Gr = 100, the Prandtl number Pr, the aspect ratio, and the pressure-driven parameter, i.e., the Dean number Dn between 100 and 1000. The flow structures are examined under combined action of the centrifugal, Coriolis and buoyancy forces. As a result, asymmetric 2-cell structures are computed for small values of Tr while asymmetric 6-cell structures for large Tr. Unsteady flow characteristics show that the flow undergoes in the scenario ‘chaotic→ multi-periodic → periodic→ steady-state’, if Tr is increased in the positive direction. Typical contours of secondary flow patterns, temperature profiles and axial flow distribution are also obtained at several values of Tr, and it is found that there exist asymmetric two- to multi-vortex solutions. Heating the outer wall is found to generate a significant temperature gradient at the outer concave wall

Dissimilarity of absorbing internal radiation dose of 99mTc- diethylenetriaminepentacetate among male, female and international committee for radiation protection - 53 recommended data

Background: Radioisotope tomography is a form of medical imaging of the kidneys that uses radiolabelling. The two most common radiolabelled pharmaceutical agents used are Tc99m-MAG3 (MAG3 is also called mercaptoacetyltriglycine) and Tc-99m-DTPA (diethylenetriaminepentacetate). Tc-99m-DTPA is filtered by the glomerulus and used to measure the glomerular filtration rate and is the second most commonly used renal radiopharmaceutical, primarily because it is the least expensive. The main objective of the present study was to obtain the bio-kinetic data of organ activity as well as organ absorbed dose of Tc99m-DTPA for single photon emitters.Methods: We have carried out a method to obtain accurate organ activity with single photon emission computed tomography (SPECT). Tc-99m-DTPA radiopharmaceutical medicine was used as single photon emitters and we have demonstrated effective decay method and conventional method to obtain accurate organ (seven) activity with single photon emission computed SPECT. The observed organ activity is due to the Tc99m-DTPA is obtained and the data is compared among male, female and ICRP (international committee for radiation protection)-53 recommended data as well.Results: The outcome of study revealed that, dose absorbed power of male is greater than female, so in nuclear medicine centre absorbed doses should be estimated separately both for male and female for more proper treatment opportunity. It is also observed that there is no good agreement of absorbed dose values among male, female and ICRP-53 recommended data.Conclusions: Our achieved result is due to the extreme variation in food values and fundamental needed elements are certainly different between Bangladeshi peoples and foreigners. In case of foreigner’s it is almost equal for male and female, whereas for Bangladeshi male and female it is certainly different

Perception of Non-Muslim Customers Towards Islamic Banking: A Study in Northern Part of Bangladesh

Product and services provided by Islamic banking are gaining popularity among not only among Muslim customers but also among non-Muslims across the world due to its wider products coverage and ability to pass through the global economic melt- down However to what extent this statement is true in the context of Bangladesh needs focus and hence this research aims to investigate the perception of non-Muslim customers about the products and services provided by Islamic banking in Bangladesh A total of 12 actual respondents participated in the survey at selected areas in the northern part of Bangladesh The result of the study showed that the perception of non-Muslims regarding Islamic banking is positive and it s gaining popularity day by day Non-Muslims in some cases have knowledge of Islamic banking products and services Taking these mixed responses i e little awareness but positive perceptions further efforts need to be taken to promote the level of consciousness about Islamic banking among non-Muslims in northern part of Bangladesh and throughout the countr

Bio-Engineered Concrete: A Critical Review on The Next Generation of Durable Concrete

Concrete is a prerequisite material for infrastructural development, which is required to be sufficiently strong and durable. It consists of fine, coarse, and aggregate particles bonded with a fluid cement that hardens over time. However, micro cracks development in concrete is a significant threat to its durability. To overcome this issue, several treatments and maintenance methods are adopted after construction, to ensure the durability of the structure. These include the use of bio-engineered concrete, which involved the biochemical reaction of non-reacted limestone and a calcium-based nutrient with the help of bacteria. These bio-cultures (bacteria) act as spores, which have the ability to survive up to 200 years, as they are also found to start the mineralization process and the filling of cracks or pores when in contact with moisture. Previous research proved that bio-engineered concrete is a self-healing technology, which developed the mechanical strength properties of the composite materials. The mechanism and healing process of the concrete is also natural and eco-friendly. Therefore, this study aims to critically analyze bio-engineered concrete and its future potentials in the Structural Engineering field, through the use of literature review. The data analysis was conducted in order to provide gradual and informative ideas on the historical background, present situation, and main mechanism process of the materials. According to the literature review, bio-engineered concrete has a promising outcome in the case of strength increment and crack healing. However, the only disadvantage was its less application in the practical fields. The results concluded that bio-engineered concrete is a new method for ensuring sustainable infrastructural development. And also, it indicated that more practical outcome-based analysis with extensive application in various aspects should be conducted, in order to assess the overall durability

Mathematical Modeling of Life Insurance Policies

The Life Insurance Company calculates the policy price with intent to recover claims to be paid and administrative cost and to make profit. The cost of insurance is determined using Mortality Table calculated by Actuaries. The insurance companies receive premiums from the policy owner and invest them to create a pool of money from which to pay claims and finance the insurance company’s operations. Rates charged for life insurance increase with insured’s age because statistically people are more likely to die as they get older. In this paper, we discussed about different insurance policies including expenses. We have also discussed about the annual premium rates of both endowment plan and three-payment plans. We have used mathematical programming to calculate the premium rates