ahmad fadly nurullah Rasedee - Academia.edu (original) (raw)
Papers by ahmad fadly nurullah Rasedee
al-Uqud : Journal of Islamic Economics
The funeral expense is becoming expensive. It will lead to funeral poverty whereby the next of ki... more The funeral expense is becoming expensive. It will lead to funeral poverty whereby the next of kin of the deceased face difficulty paying funeral expenses. Increasing numbers of people seek financial management advice following bereavement, which can have a long-term effect on the grief experience and an individual's ability to manage. More should be done to encourage people on low incomes to prepare for death through simple advice and guidance. In Malaysia, a funeral social fund such as the Khairat death fund, in general, is financial assistance that is a grant to the family of the deceased for covering the cost and expenses of funeral processes. Khairat death fund was managed by community members or organizations in the areas. However, all this Khairat death organization moving with their own way as there is no legal jurisprudence as guidance to regulate and to be more systematic and synchronize management. Hence, this study will review regulation and governance for the funera...
International Journal of Financial Innovation in Banking
Mathematical Modeling and Computing, 2022
The current study provides a numerical method that is derived in a backward difference formulatio... more The current study provides a numerical method that is derived in a backward difference formulation for ordinary differential equations. The proposed method employs a constant step size algorithm of order 12. The backward difference formulation serves as a competitive algorithm for solving ordinary differential equations. In the current study, the backward difference method is used to analyze the dynamics of capital stocks in terms of depreciation rate for the capital–labor ratio. Results provided in this study will validate the accuracy of the backward difference algorithm hence proving it as a viable alternative for analyzing economic problems in the form of ordinary differential equations.
Mathematical Modeling and Computing, 2022
Existing variable order step size numerical techniques for solving a system of higher-order ordin... more Existing variable order step size numerical techniques for solving a system of higher-order ordinary differential equations (ODEs) requires direct calculating the integration coefficients at each step change. In this study, a variable order step size is presented for direct solving higher-order orbital equations. The proposed algorithm calculates the integration coefficients only once at the beginning and, if necessary, once at the end. The accuracy of the numerical approximation is validated with well-known orbital differential equations. To reduce computational costs, we obtain the relationship for the predictor-corrector algorithm between integration coefficients of various orders. The efficiency of the proposed method is substantiated by the graphical representation of accuracy at the total evaluation steps.
Advances in Mathematics: Scientific Journal, 2020
Journal of Material Science & Engineering, 2015
Membrane distillation (MD) is a hybrid separation technique increasingly used in various fields s... more Membrane distillation (MD) is a hybrid separation technique increasingly used in various fields such as desalination and the food industry. In this work, we present three theoretical models of flow and heat and mass transfers in membrane distillation unit air gap (AGMD). The results on the effect of membrane pore size have been analyzed for the different mechanisms of mass transfer involved by estimating the flow of generated steam. A mathematical model was presented for determining exchanges and possible combinations.
Advances in Mathematics: Scientific Journal, 2021
The public key cryptosystem is fundamental in safeguard communication in cyberspace. This paper d... more The public key cryptosystem is fundamental in safeguard communication in cyberspace. This paper described a new cryptosystem analogous to El-Gamal encryption scheme, which utilizing the Lucas sequence and Elliptic Curve. Similar to Elliptic Curve Cryptography (ECC) and Rivest-Shamir-Adleman (RSA), the proposed cryptosystem requires a precise hard mathematical problem as the essential part of security strength. The chosen plaintext attack (CPA) was employed to investigate the security of this cryptosystem. The result shows that the system is vulnerable against the CPA when the sender decrypts a plaintext with modified public key, where the cryptanalyst able to break the security of the proposed cryptosystem by recovering the plaintext even without knowing the secret key from either the sender or receiver.
UPM Press, 2019
The user has requested enhancement of the downloaded file.
Mathematics and Statistics
The current study was conducted to establish a new numerical method for solving Duffing type diff... more The current study was conducted to establish a new numerical method for solving Duffing type differential equations. Duffing type differential equations are often linked to damping issues in physical systems, which can be found in control process problems. The proposed method is developed using a three-point block method in backward difference form, which offers an accurate approximation of Duffing type differential equations with less computational cost. Applying an Adam's like predictor-corrector formulation, the three point block method is programmed with a recursive relationship between explicit and implicit coefficients to reduce computational cost. By establishing this recursive relationship, we established a corrector algorithm in terms of the predictor. This eliminates any undesired redundancy in the calculation when obtaining the corrector. The proposed method allows a more efficient solution without any significant loss of accuracy. Four types of Duffing differential equations are selected to test the viability of the method. Numerical results will shows efficiency of the three-point block method compared against conventional and more established methods. The outcome of this research is a new method for successfully solving Duffing type differential equation and other ordinary differential equations that are found in the field of science and engineering. An added advantage of the three-point block method is its adaptability to parallel programming.
Journal of Equine Veterinary Science, 2017
The equine endurance race involves both aerobic and anaerobic metabolisms of the horse. The inten... more The equine endurance race involves both aerobic and anaerobic metabolisms of the horse. The intense physical activity over an extended period often causes susceptible horses to develop metabolic signs or problems resulting in elimination from races. Thus, the objective of this study was to develop a method for prediction and validation of a metabolic disorder index (MDI) to be used before endurance races. Three hundred seventy-five Arabian (n = 152) and Arabian cross (n = 223) endurance horses aged from 6 to 15 years and weighing between 350 and 450 kg were selected for the study in Malaysia. Blood samples were collected at pre-and post-race periods. The significant (P < .05) findings in horses with metabolic disorder were packed cell volume (0.50 ± 0.06 LL−1), creatine kinase (1,275.89 ± 121.45 UL−1), interleukin-6 (2.01 ± 0.89 ng/mL), decreased glutathione reductase (26.57 ± 3.95 ng/mL), and chloride (94.98 ± 8.12 mmol/L). A new method called MDI was developed as a predictor for horses with the potential to develop metabolic disorders in endurance races. The MDI indicated a higher value greater than 5.5 for those eliminated and lower value below 5.5 for those that completed the race successfully, this proved to be accurate in the prediction of metabolic disorder in endurance horses. The MDI is an innovative and simple method used as a prediction method that will assist the equine endurance society to reduce the rate of elimination and to safeguard against serious medical problems during endurance races in the tropics.
ASM Science Journal, 2020
Mathematical Problems in Engineering, 2014
The current numerical techniques for solving a system of higher order ordinary differential equat... more The current numerical techniques for solving a system of higher order ordinary differential equations (ODEs) directly calculate the integration coefficients at every step. Here, we propose a method to solve higher order ODEs directly by calculating the integration coefficients only once at the beginning of the integration and if required once more at the end. The formulae will be derived in terms of backward difference in a constant step size formulation. The method developed will be validated by solving some higher order ODEs directly using variable order step size. To simplify the evaluations of the integration coefficients, we find the relationship between various orders. The results presented confirmed our hypothesis.
Abstract and Applied Analysis, 2014
We describe the development of a 2-point block backward difference method (2PBBD) for solving sys... more We describe the development of a 2-point block backward difference method (2PBBD) for solving system of nonstiff higher-order ordinary differential equations (ODEs) directly. The method computes the approximate solutions at two points simultaneously within an equidistant block. The integration coefficients that are used in the method are obtained only once at the start of the integration. Numerical results are presented to compare the performances of the method developed with 1-point backward difference method (1PBD) and 2-point block divided difference method (2PBDD). The result indicated that, for finer step sizes, this method performs better than the other two methods, that is, 1PBD and 2PBDD.
Mathematical Problems in Engineering, 2011
The current numerical technique for solving a system of higher-order ordinary differential equati... more The current numerical technique for solving a system of higher-order ordinary differential equations (ODEs) is to reduce it to a system of first-order equations then solving it using first-order ODE methods. Here, we propose a method to solve higher-order ODEs directly. The formulae will be derived in terms of backward difference in a constant stepsize formulation. The method developed will be validated by solving some higher-order ODEs directly with constant stepsize. To simplify the evaluations of the integration coefficients, we find the relationship between various orders. The result presented confirmed our hypothesis.
Journal of King Saud University - Science, 2021
Tazkia Islamic Finance and Business Review, 2021
The funeral expense is becoming expensive. It will lead into funeral poverty whereby the next of ... more The funeral expense is becoming expensive. It will lead into funeral poverty whereby the next of kin of the deceased face a difficulty to pay funeral expenses. The funeral poverty already affected developed countries such as Indonesia and African countries. For Malaysia, few schemes have been established by society to cover the poor from having difficulties for funeral expenses. The underlying reason behind the practice is a strong culture and belief. Nevertheless, these organizations have a different approach in managing this scheme but create chaos in the society from the perspective of payment and coverage. This paper will review literature, segmenting the practices and suggest the probable solution for funeral expenses scheme with the kind of exploring a segment in Takaful and micro-Takaful.
Journal of Physics: Conference Series
This paper explores the security claims of the Generalized (Rivest-Shamir-Adleman)-Advance and Ad... more This paper explores the security claims of the Generalized (Rivest-Shamir-Adleman)-Advance and Adaptable Cryptosystem, in short the GRSA-AA cryptosystem. In the GRSA-AA design proposal, the public key n is defined as the multiplication of two large prime numbers, while the values of encryption key E and decryption key D are relying on the result of multiplying 2 k large prime numbers called N where n divides N. The GRSA-AA claimed that the brute force is necessary to break the cryptosystem even if the integer n was factored. Nevertheless, this paper aims to show that this scheme is insecure once n is factored. The mathematical proof is presented to show that it is easy to generate an alternative value to the private key D without brute-forcing, yet successfully break the system.
Filomat
In this work, weinvestigate conditions for summability of the Fourier-Laplace series of integrabl... more In this work, weinvestigate conditions for summability of the Fourier-Laplace series of integrable functions by Riesz means. The kernel of Riesz means is estimated through comparison with the Cesaro means. Properties of D and D* points are required in obtaining this estimation.
This work was intended as an attempt to extend the results on localization of Fourier-Laplace ser... more This work was intended as an attempt to extend the results on localization of Fourier-Laplace series to the spectral expansions of distributions on the unit sphere. It is shown that the spectral expansions of the distribution on the unit sphere can be represented in terms of decompostions of Laplace-Beltrami operator. It was of interest to establish sufficient conditions for localization of the spectral expansions of distribution to clarify the latter some relevant counter examples are indicated.
al-Uqud : Journal of Islamic Economics
The funeral expense is becoming expensive. It will lead to funeral poverty whereby the next of ki... more The funeral expense is becoming expensive. It will lead to funeral poverty whereby the next of kin of the deceased face difficulty paying funeral expenses. Increasing numbers of people seek financial management advice following bereavement, which can have a long-term effect on the grief experience and an individual's ability to manage. More should be done to encourage people on low incomes to prepare for death through simple advice and guidance. In Malaysia, a funeral social fund such as the Khairat death fund, in general, is financial assistance that is a grant to the family of the deceased for covering the cost and expenses of funeral processes. Khairat death fund was managed by community members or organizations in the areas. However, all this Khairat death organization moving with their own way as there is no legal jurisprudence as guidance to regulate and to be more systematic and synchronize management. Hence, this study will review regulation and governance for the funera...
International Journal of Financial Innovation in Banking
Mathematical Modeling and Computing, 2022
The current study provides a numerical method that is derived in a backward difference formulatio... more The current study provides a numerical method that is derived in a backward difference formulation for ordinary differential equations. The proposed method employs a constant step size algorithm of order 12. The backward difference formulation serves as a competitive algorithm for solving ordinary differential equations. In the current study, the backward difference method is used to analyze the dynamics of capital stocks in terms of depreciation rate for the capital–labor ratio. Results provided in this study will validate the accuracy of the backward difference algorithm hence proving it as a viable alternative for analyzing economic problems in the form of ordinary differential equations.
Mathematical Modeling and Computing, 2022
Existing variable order step size numerical techniques for solving a system of higher-order ordin... more Existing variable order step size numerical techniques for solving a system of higher-order ordinary differential equations (ODEs) requires direct calculating the integration coefficients at each step change. In this study, a variable order step size is presented for direct solving higher-order orbital equations. The proposed algorithm calculates the integration coefficients only once at the beginning and, if necessary, once at the end. The accuracy of the numerical approximation is validated with well-known orbital differential equations. To reduce computational costs, we obtain the relationship for the predictor-corrector algorithm between integration coefficients of various orders. The efficiency of the proposed method is substantiated by the graphical representation of accuracy at the total evaluation steps.
Advances in Mathematics: Scientific Journal, 2020
Journal of Material Science & Engineering, 2015
Membrane distillation (MD) is a hybrid separation technique increasingly used in various fields s... more Membrane distillation (MD) is a hybrid separation technique increasingly used in various fields such as desalination and the food industry. In this work, we present three theoretical models of flow and heat and mass transfers in membrane distillation unit air gap (AGMD). The results on the effect of membrane pore size have been analyzed for the different mechanisms of mass transfer involved by estimating the flow of generated steam. A mathematical model was presented for determining exchanges and possible combinations.
Advances in Mathematics: Scientific Journal, 2021
The public key cryptosystem is fundamental in safeguard communication in cyberspace. This paper d... more The public key cryptosystem is fundamental in safeguard communication in cyberspace. This paper described a new cryptosystem analogous to El-Gamal encryption scheme, which utilizing the Lucas sequence and Elliptic Curve. Similar to Elliptic Curve Cryptography (ECC) and Rivest-Shamir-Adleman (RSA), the proposed cryptosystem requires a precise hard mathematical problem as the essential part of security strength. The chosen plaintext attack (CPA) was employed to investigate the security of this cryptosystem. The result shows that the system is vulnerable against the CPA when the sender decrypts a plaintext with modified public key, where the cryptanalyst able to break the security of the proposed cryptosystem by recovering the plaintext even without knowing the secret key from either the sender or receiver.
UPM Press, 2019
The user has requested enhancement of the downloaded file.
Mathematics and Statistics
The current study was conducted to establish a new numerical method for solving Duffing type diff... more The current study was conducted to establish a new numerical method for solving Duffing type differential equations. Duffing type differential equations are often linked to damping issues in physical systems, which can be found in control process problems. The proposed method is developed using a three-point block method in backward difference form, which offers an accurate approximation of Duffing type differential equations with less computational cost. Applying an Adam's like predictor-corrector formulation, the three point block method is programmed with a recursive relationship between explicit and implicit coefficients to reduce computational cost. By establishing this recursive relationship, we established a corrector algorithm in terms of the predictor. This eliminates any undesired redundancy in the calculation when obtaining the corrector. The proposed method allows a more efficient solution without any significant loss of accuracy. Four types of Duffing differential equations are selected to test the viability of the method. Numerical results will shows efficiency of the three-point block method compared against conventional and more established methods. The outcome of this research is a new method for successfully solving Duffing type differential equation and other ordinary differential equations that are found in the field of science and engineering. An added advantage of the three-point block method is its adaptability to parallel programming.
Journal of Equine Veterinary Science, 2017
The equine endurance race involves both aerobic and anaerobic metabolisms of the horse. The inten... more The equine endurance race involves both aerobic and anaerobic metabolisms of the horse. The intense physical activity over an extended period often causes susceptible horses to develop metabolic signs or problems resulting in elimination from races. Thus, the objective of this study was to develop a method for prediction and validation of a metabolic disorder index (MDI) to be used before endurance races. Three hundred seventy-five Arabian (n = 152) and Arabian cross (n = 223) endurance horses aged from 6 to 15 years and weighing between 350 and 450 kg were selected for the study in Malaysia. Blood samples were collected at pre-and post-race periods. The significant (P < .05) findings in horses with metabolic disorder were packed cell volume (0.50 ± 0.06 LL−1), creatine kinase (1,275.89 ± 121.45 UL−1), interleukin-6 (2.01 ± 0.89 ng/mL), decreased glutathione reductase (26.57 ± 3.95 ng/mL), and chloride (94.98 ± 8.12 mmol/L). A new method called MDI was developed as a predictor for horses with the potential to develop metabolic disorders in endurance races. The MDI indicated a higher value greater than 5.5 for those eliminated and lower value below 5.5 for those that completed the race successfully, this proved to be accurate in the prediction of metabolic disorder in endurance horses. The MDI is an innovative and simple method used as a prediction method that will assist the equine endurance society to reduce the rate of elimination and to safeguard against serious medical problems during endurance races in the tropics.
ASM Science Journal, 2020
Mathematical Problems in Engineering, 2014
The current numerical techniques for solving a system of higher order ordinary differential equat... more The current numerical techniques for solving a system of higher order ordinary differential equations (ODEs) directly calculate the integration coefficients at every step. Here, we propose a method to solve higher order ODEs directly by calculating the integration coefficients only once at the beginning of the integration and if required once more at the end. The formulae will be derived in terms of backward difference in a constant step size formulation. The method developed will be validated by solving some higher order ODEs directly using variable order step size. To simplify the evaluations of the integration coefficients, we find the relationship between various orders. The results presented confirmed our hypothesis.
Abstract and Applied Analysis, 2014
We describe the development of a 2-point block backward difference method (2PBBD) for solving sys... more We describe the development of a 2-point block backward difference method (2PBBD) for solving system of nonstiff higher-order ordinary differential equations (ODEs) directly. The method computes the approximate solutions at two points simultaneously within an equidistant block. The integration coefficients that are used in the method are obtained only once at the start of the integration. Numerical results are presented to compare the performances of the method developed with 1-point backward difference method (1PBD) and 2-point block divided difference method (2PBDD). The result indicated that, for finer step sizes, this method performs better than the other two methods, that is, 1PBD and 2PBDD.
Mathematical Problems in Engineering, 2011
The current numerical technique for solving a system of higher-order ordinary differential equati... more The current numerical technique for solving a system of higher-order ordinary differential equations (ODEs) is to reduce it to a system of first-order equations then solving it using first-order ODE methods. Here, we propose a method to solve higher-order ODEs directly. The formulae will be derived in terms of backward difference in a constant stepsize formulation. The method developed will be validated by solving some higher-order ODEs directly with constant stepsize. To simplify the evaluations of the integration coefficients, we find the relationship between various orders. The result presented confirmed our hypothesis.
Journal of King Saud University - Science, 2021
Tazkia Islamic Finance and Business Review, 2021
The funeral expense is becoming expensive. It will lead into funeral poverty whereby the next of ... more The funeral expense is becoming expensive. It will lead into funeral poverty whereby the next of kin of the deceased face a difficulty to pay funeral expenses. The funeral poverty already affected developed countries such as Indonesia and African countries. For Malaysia, few schemes have been established by society to cover the poor from having difficulties for funeral expenses. The underlying reason behind the practice is a strong culture and belief. Nevertheless, these organizations have a different approach in managing this scheme but create chaos in the society from the perspective of payment and coverage. This paper will review literature, segmenting the practices and suggest the probable solution for funeral expenses scheme with the kind of exploring a segment in Takaful and micro-Takaful.
Journal of Physics: Conference Series
This paper explores the security claims of the Generalized (Rivest-Shamir-Adleman)-Advance and Ad... more This paper explores the security claims of the Generalized (Rivest-Shamir-Adleman)-Advance and Adaptable Cryptosystem, in short the GRSA-AA cryptosystem. In the GRSA-AA design proposal, the public key n is defined as the multiplication of two large prime numbers, while the values of encryption key E and decryption key D are relying on the result of multiplying 2 k large prime numbers called N where n divides N. The GRSA-AA claimed that the brute force is necessary to break the cryptosystem even if the integer n was factored. Nevertheless, this paper aims to show that this scheme is insecure once n is factored. The mathematical proof is presented to show that it is easy to generate an alternative value to the private key D without brute-forcing, yet successfully break the system.
Filomat
In this work, weinvestigate conditions for summability of the Fourier-Laplace series of integrabl... more In this work, weinvestigate conditions for summability of the Fourier-Laplace series of integrable functions by Riesz means. The kernel of Riesz means is estimated through comparison with the Cesaro means. Properties of D and D* points are required in obtaining this estimation.
This work was intended as an attempt to extend the results on localization of Fourier-Laplace ser... more This work was intended as an attempt to extend the results on localization of Fourier-Laplace series to the spectral expansions of distributions on the unit sphere. It is shown that the spectral expansions of the distribution on the unit sphere can be represented in terms of decompostions of Laplace-Beltrami operator. It was of interest to establish sufficient conditions for localization of the spectral expansions of distribution to clarify the latter some relevant counter examples are indicated.