Klebsiella pneumoniae (K. pneumoniae) is a Gram-negative bacteria that can infect most of the bod... more Klebsiella pneumoniae (K. pneumoniae) is a Gram-negative bacteria that can infect most of the body's organs, from the lungs to the central nervous system. It is notorious for causing pneumonia in alcoholic, diabetic, and hospitalized patients. It is now emerging as a cause of abscesses involving multiple organs. Invasive K. pneumoniae is most commonly observed in the Asian population but has been reported in other geographical areas as well. We present a case of invasive K. pneumoniae. The patient was initially admitted with diabetic ketoacidosis (DKA); further investigations showed multiple abscesses involving the liver, lungs, brain, and muscles. K. pneumoniae was identified in blood and liver abscess cultures. The patient was managed for DKA as per protocol, and was administered broad-spectrum antibiotics with percutaneous drainage of liver abscess for invasive K. pneumoniae syndrome. In this paper, we highlight the invasive nature of K. pneumoniae, which may aid clinicians in diagnosing and managing similar cases, thereby preventing the associated high morbidity and mortality.
Myocardial infarction (MI) is a critical event that needs timely diagnosis and prompt management.... more Myocardial infarction (MI) is a critical event that needs timely diagnosis and prompt management. Wellens syndrome can progress to MI if not managed in a timely manner. It implies the underlying critical stenosis of the left anterior descending (LAD) artery of the heart. In this report, we discuss an interesting presentation of pseudo-Wellens syndrome in a hypertensive middle-aged woman admitted as a case of Non-ST-elevation myocardial infarction (NSTEMI). During the hospital stay, she had an episode of chest pain with typical ECG changes, suggesting Wellens syndrome. However, upon intervening with coronary angiography, it turned out to be unremarkable for any coronary artery stenosis. She developed another episode of chest pain during her hospital stay with abnormal ECG patterns requiring further investigations with a non-invasive CT scan of coronary arteries and cardiac MRI for any infiltrative diseases. All workups were unremarkable. A multidisciplinary team involving the medical and interventional cardiology departments were involved in the diagnosis, and the patient was labeled as a case of vasospastic angina. She was treated with calcium channel blockers and was followed up as an outpatient for seven months with no further complications. Our main objective was to highlight the interesting phenomenon of Wellens and pseudo-Wellens syndrome. The condition requires early diagnosis and timely management to make sure that no underlying critical pathology is present that can result in fatal complications like MI or cardiac arrest.
Acute kidney injury in the setting of hyperbilirubinemia presents a diagnostic challenge. Hepator... more Acute kidney injury in the setting of hyperbilirubinemia presents a diagnostic challenge. Hepatorenal syndrome takes precedence as a diagnosis in these cases. Bile cast nephropathy is a diagnosis that gets relatively low consideration. The most accurate diagnostic tool for bile cast nephropathy is a renal biopsy, which may present a challenge in certain clinical settings. There are no set guidelines for its management. While the exact cause of the condition is unknown, it is presumed to be secondary to multiple concurrent insults to the kidney including direct toxicity from bile acids, obstruction caused by bile casts, and systemic hypo-perfusion from vasodilation. It is believed that plasmapheresis and albumin dialysis have been associated with some recovery of renal function. We present a case of acute renal failure in a patient with obstructive jaundice, who responded to dialysis and biliary drain insertion.
Fundus imaging is one of the crucial methods that help ophthalmologists for diagnosing the variou... more Fundus imaging is one of the crucial methods that help ophthalmologists for diagnosing the various eye diseases in modern medicine. An accurate vessel segmentation method can be a convenient tool to foresee and analyze fatal diseases, including hypertension or diabetes, which damage the retinal vessel’s appearance. This work suggests an unsupervised approach for vessels segmentation out of retinal images. The proposed method includes multiple steps. Firstly, from the colored retinal image, green channel is extracted and preprocessed utilizing Contrast Limited Histogram Equalization as well as Fuzzy Histogram Based Equalization for contrast enhancement. To expel geometrical articles (macula, optic disk) and noise, top-hat morphological operations are used. On the resulted enhanced image, matched filter and Gabor wavelet filter are applied, and the outputs from both is added to extract vessels pixels. The resulting image with the now noticeable blood vessel is binarized using human vi...
In most of the medical treatments, intravenous catheterization is considered as a first crucial p... more In most of the medical treatments, intravenous catheterization is considered as a first crucial phase, in which health practitioners find the superficial vein to conduct blood sampling or medication procedures. In some patients these veins are hard to localize due to different physiological characteristics such as dark skin tone, scars, vein depth etc., which mostly results in multiple attempts for needle insertion. This causes pain, delayed treatment, bleeding, and even infections. To reduce these risks, an automated veins detection method is needed that can efficiently segment the veins and produce realistic results for cannulation purposes. For this purpose, many imaging modalities such as Photoacoustic, Trans-illumination, ultrasound, Near-Infrared etc. are used. Among these modalities Near-Infrared (NIR) imaging modality is considered most suitable due to its lower cost and non-ionizing nature. Over the past few years, subcutaneous veins localization using NIR have attracted increasing attention in the field of health care and biomedical engineering. Therefore, the proposed research work is based on NIR images for forearm subcutaneous veins segmentation. This paper presents a deep learning-based approach called Generative Adversarial Networks (GAN) for segmentation/localization of forearm veins. GANs have shown exciting results in the medical imaging field recently. These are used for unsupervised feature learning and image-to-image translation applications. These networks generate realistic results by learning data mapping from one state to another. Since GANs can produce state of the art results, therefore we have proposed a Pix2Pix GAN for segmentation of forearm veins. The proposed algorithm is trained and tested on forearm subcutaneous veins image dataset. The proposed model outperforms traditional approaches with the mean accuracy and sensitivity, values obtained are 0.971 and 0.862 respectively. The dice coefficient and Intersection over Union (IoU) score are respectively 0.962 and 0.936 which are better than the state-of-the-art methods. INDEX TERMS Forearm subcutaneous veins, generative adversarial networks, image segmentation, medical image analysis.
2021 23rd International Conference on Advanced Communication Technology (ICACT), 2021
To support effective supply chain management (SCM) is a challenging issue for healthcare sectors.... more To support effective supply chain management (SCM) is a challenging issue for healthcare sectors. In healthcare, the requirements of blood to be fulfilled on demands are always directly or indirectly connected to its supply chain. For that, an effective blood supply chain system is required in which blood relevant information will be traceable at each stage of the blood supply (e.g., from donor to blood recipient), with trust and safety in testing, storage, and distribution phases and to keep the privacy of each donor. This study uses a Blockchain Ethereum platform as a solution to leverage traceability in the blood donation supply chain (BDSC). Blockchain is a highly efficient, decentralized, and peer-to-peer distributed technology deploys to provide end-to-end traceability, safety, immutability, and security in the BDSC ecosystem. As a part of this study, a role-based smart contract solution is used to define the access per each role, which therefore assists to ensure traceability and security of information in the BDSC ecosystem.
Third International Conference on Advances in Applied Science and Environmental Engineering - ASEE 2015, 2015
The new technology demands and rapid utilization of Information technology (IT) have been increas... more The new technology demands and rapid utilization of Information technology (IT) have been increasing day by day, in all over the world. The growing demands of advance Information technology (IT) infrastructures within several Industries and organizations, and the implementation of non-propriety protocols with propriety protocols , caused major performance issues in the terms of communication, data exchange and security. In this proposal, detail survey has been conducted that is based on several computer or/and Information technology (IT) networks deployment with their security requirements and issues. The proposed research thoroughly study the implementations related with communication networks included local area network (LAN) and wide area network (WAN) as part of traditional networks, mobile networks, real time networks and cloud computing networks. Also study the existing Implementations of common protocols that have been used during communication (network communication). This research reviews the exiting implementations related with propriety and non-propriety protocols within networks infrastructures with security implementations. After reviewed the exiting work or implementations in detail, this research proposal proposed a generic model to overcome the communication issues, security weaknesses and proper implementation of security mechanisms with proper placement. The proposed model also tries to overcome the issues that have been situated between real time protocols and traditional protocols during communication.
Thermophysical Properties of Complex Materials, 2020
The studies of strongly coupled complex plasmas are of significant in the area of science and tec... more The studies of strongly coupled complex plasmas are of significant in the area of science and technology. The plasma thermal conductivity strongly coupled (complex) plasmas is of significant in scientific technology, because it behaves as complex fluids. The two-dimensional (2D) plasma thermal conductivity of strongly coupled complex dusty plasmas (SCCDPs) has been investigated by using the homogenous nonequilibrium molecular dynamics (HNEMD) simulations, proposed by Evan-Gillan scheme, at higher screening parameter к. In our case, we have chosen particularly higher screening strength (к) for calculating plasma thermal conductivity. The new simulations of plasma thermal conductivity are computed over an extensive range of plasma states (Г, к) for suitable system sizes by applying the HNEMD simulation method at constant external force field strength (F *). It is found that the plasma thermal conductivity of SCCDP S decreases by increasing plasma states (Г, к). The calculations show that the kinetic energy of SCCDP S depends upon the system temperature (1/Г) and it is independent of к for higher screening parameter. The new results of thermal conductivity obtained from an improved HNEMD algorithm are in satisfactory agreement with earlier known numerical results and experimental data for 2D SCCDP S. It is depicted that the HNEMD method is a powerful tool to calculate an accurate plasma thermal conductivity of 2D SCCDP S .
Plasma Science and Technology - Basic Fundamentals and Modern Applications, 2019
The dynamical structure factor [S(k,ω)] gives the information about static and dynamic properties... more The dynamical structure factor [S(k,ω)] gives the information about static and dynamic properties of complex dusty plasma (CDPs). We have used the equilibrium molecular dynamic (EMD) simulations for the investigation of S(k,ω) of strongly coupled CDPs (SCCDPs). In this work, we have computed all possible values of dynamical density with increasing and decreasing sequences of plasma frequency (ω p) and wave number (k) over a wide range of different combinations of the plasma parameters (κ, Γ). Our new simulation results show that the fluctuation of S(k,ω) increases with increasing Г and it decreases with an increase of κ and N. Moreover, investigation shows that the amplitude of S(k,ω) increases by increasing screening (κ) and wave number (k), and it decreases with increasing Г. Our EMD simulation shows that dynamical density of SCCDPs is slightly dependent on N; however, it is nearly independent of other parameters. The presented results obtained through EMD approach are in reasonable agreement with earlier known results based on different numerical methods and plasma states. It is demonstrated that the presented model is the best tool for estimating the density fluctuation in the SCCDPs over a suitable range of parameters.
A novel homogenous perturbed nonequilibrium molecular dynamics (HPMD) scheme, proposed by Evan-Gi... more A novel homogenous perturbed nonequilibrium molecular dynamics (HPMD) scheme, proposed by Evan-Gillan, has been employed to calculate the thermal conductivity of twodimensional (2D) complex plasma liquids and crystals (CPLCs). The thermal conductivity has been reported using an improved HPMD method under the influence of constant external perturbation with different system sizes (N) and combinations of plasma parameters (Γ, κ). The current HPMD scheme provides precise outcomes with fast convergence for small-to-large N effects over a complete range of (Γ, κ). Temperature scaling law is tested for 2D thermal conductivity with appropriate Einstein frequency and found excellent behaviors. New simulations show that the thermal conductivity of CPLCs depends on (Γ, κ) and N and a slightly decreasing behavior is noted for thermal conductivity with increasing Γ and N but overall thermal conductivity becomes constant at intermediate-to-large Γ. The reported thermal conductivity obtained from present HPMD method, in the limit of low equilibrium perturbation, is established a reasonable agreement with that obtained from earlier known 2D numerical and experimental data. It is demonstrated that the present HPMD method is an alternative efficient tool to compute the thermal conductivity of 2D CPLCs and can be suitable method for complete trends of complex plasmas.
Undoubtedly, the supply chain management (SCM) system is an important part of many organizations ... more Undoubtedly, the supply chain management (SCM) system is an important part of many organizations worldwide; over time, the technologies used to manage a supply chain ecosystem have, therefore, a great impact on businesses’ effectiveness. Among others, numerous developments have been made that targeted to have robust supply chain systems to efficiently manage the growing demands of various supplies, considering the underlying requirements and main challenges such as scalability, specifically privacy and security, of various business networks. Internet of things (IoT) comes with a solution to manage a complex, scalable supply chain system, but to provide and attain enough security during information exchange, along with keeping the privacy of its users, is the great inherent challenge of IoT. To fulfill these limitations, this study designs and models a scaled IoT-based supply chain (IoT-SC) system, comprising several operations and participants, and deploys mechanisms to leverage the...
In order to perform the standard Intravenous (IV) catheterization, subcutaneous veins must be loc... more In order to perform the standard Intravenous (IV) catheterization, subcutaneous veins must be localized. It is a difficult task, especially in the cases when veins are hard to localize. The factors which affect the veins localization process are the physiological characteristics of patients, mainly darker skin tone, scars, hair, dehydration and low blood pressure. With the help of Near Infrared imaging, subcutaneous veins can be envisioned. This is due to the higher absorption of NIR light energy by Hemoglobin (Hb) found in the veins. Besides a superficial view, the veins depth information is also important in order to avoid their rupture by piercing through the walls during IV catheterization process. Diffused reflectance, measured with a camera sensor, can be used for the depth estimation of blood vessels. In this paper, a method to measure the depth of veins using diffused reflectance parameter, is presented. The well-known Monte Carlo model of light propagation in human tissues ...
In this chapter, we report the design and fabrication of an improved speed synchronizer device in... more In this chapter, we report the design and fabrication of an improved speed synchronizer device in which two dc motors has been controlled on different sequences programmed by microcontroller. Depending on the programmed software, the device is used to command a rolling of machines, synchronizes the dc motors speed, and displays the result on liquid crystal display (LCD). Flash memory of the microcontroller is used to program for controlling this device where permanent memory is needed to store different parameters (codes for motor speed, LCD display, ratio control, and rotary encoder's feedback). The present simulation gives new reliable results with better performance for the speed and direction than the earlier available synchronizers. It has been shown that the speed and direction are dependent on both the ratio setting and frequency of encoder in two dc motors speed synchronizer. It is shown that this device is applicable for controlling, monitoring, and synchronizing identical processes and can be implemented in multiple domains, from textile industry and home control applications to industrial instruments.
Transport properties of complex system under various conditions are of practical interest in the ... more Transport properties of complex system under various conditions are of practical interest in the field of science and technology. Homogenous nonequilibrium molecular dynamics (HNEMD) simulations have been employed to calculate the thermal conductivity (λ) of three-dimensional (3D) strongly coupled complex nonideal plasmas (SCCNPs) over a suitable range of plasma parameters (Γ, κ). New investigations show that the λ depending on plasma parameters and minimum value of λ exists at nearly same plasma states. In the present case, the non-Newtonian behavior is checked with different system sizes and it is found that the λ behavior is well matched with earlier numerical work. It is demonstrated that the present outcomes are more consistent than those obtained earlier known simulations. It is revealed that our outcomes can be acceptable for a low range of force field in order to find out the size of linear ranges, and it explains the nature of nonlinearity of SCCNPs. It has been shown that the measured outcomes at steady states of external field of F* (=0.005) are in acceptable agreement with previous numerical outcomes, and it showed that the deviations are within less than 12% for most of the data and depend on plasma states.
In this work, we proposed a novel mechanical alloying method to deposit Ni x-Ti x intermetallic c... more In this work, we proposed a novel mechanical alloying method to deposit Ni x-Ti x intermetallic coating on various metallic substrates using laser treatment. Three different substrates (Al-based alloy, Ti-based alloy, and hypoeutectoid steel) were used, and 50-70 µm thick Ni x Ti x coating was deposited during the process. For mechanical alloying, we used a self-constructed vibratory ball mill (single chamber) and for laser treatment, we used a "TrumpfTruDisk 1000" machine equipped with a four-dimensional control system "Servokon" designed specifically for experimental studies. Different laser beam intensities were used for laser operation. The cross-sectional microstructures of coatings were studied using a scanning electron microscope equipped with a Bruker energy-dispersive X-ray Spectrometer (EDS). Additional investigation of a cross-sectional area of one of the Ni x Ti x-coated samples was performed with field emission high-performance SEM and focused ion beam (FIB). Phase compositions of the obtained coatings, before and after laser treatment, were analyzed using X-Ray diffraction method. After the deposition process, the micro-hardness of the coatings was measured using a Vickers hardness tester. The structure and morphology of the obtained coatings were investigated.
Wireless Communications and Mobile Computing, 2019
Wireless sensor networks (WSNs) deployed in harsh and unfavorable environments become inoperable ... more Wireless sensor networks (WSNs) deployed in harsh and unfavorable environments become inoperable because of the failure of multiple sensor nodes. This results into the division of WSNs into small disjoint networks and causes stoppage of the transmission to the sink node. Furthermore, the internodal collaboration among sensor nodes also gets disturbed. Internodal connectivity is essential for the usefulness of WSNs. The arrangement of this connectivity could be setup at the time of network startup. If multiple sensor nodes fail, the tasks assigned to those nodes cannot be performed; hence, the objective of such WSNs will be compromised. Recently, different techniques for repositioning of sensor nodes to recover the connectivity have been proposed. Although capable to restore connectivity, these techniques do not focus on the coverage loss. The objective of this research is to provide a solution for both coverage and connectivity via an integrated approach. A novel technique to reposi...
The paper focuses on Idara-e-Kissan, a vertically integrated cooperative in the dairy sector, whi... more The paper focuses on Idara-e-Kissan, a vertically integrated cooperative in the dairy sector, which procures fresh milk, processes it and uses the profits earned in urban milk product markets to provide development services to member farmers. The analysis suggests that, compared to a control group of non-members, the cooperative’s members had 29% higher net returns per milk animal, 9% more milk buffaloes, 6% fewer dry buffaloes and they used three times more milk fat-enhancing cottonseed cake. The members had better access to animal vaccination, artificial insemination, and visits from livestock extension workers; they were able to secure more animal treatments per year, and reported greater satisfaction with service provision. The cooperative’s successes were more modest in areas where the benefits of inputs and services provided were more public, e.g. livestock breed improvement and enhancing fodder productivity, indicating that there is an important role for the government in sup...
The Supervisory Control and Data Acquisition (SCADA) system has prominent place and play importan... more The Supervisory Control and Data Acquisition (SCADA) system has prominent place and play important roles within real time industrial communication included "electric stations, oil stations and water purification plants". In this study; the SCADA System main components, architecture and important protocols, which have been used in SCADA message transmission are reviewed. After review, the current research changes the direction (Section: Future Work) to the security of SCADA system and the existing methods or security methods that have been deployed within the SCADA system. This review also gives directions to secure SCADA network communication.
Klebsiella pneumoniae (K. pneumoniae) is a Gram-negative bacteria that can infect most of the bod... more Klebsiella pneumoniae (K. pneumoniae) is a Gram-negative bacteria that can infect most of the body's organs, from the lungs to the central nervous system. It is notorious for causing pneumonia in alcoholic, diabetic, and hospitalized patients. It is now emerging as a cause of abscesses involving multiple organs. Invasive K. pneumoniae is most commonly observed in the Asian population but has been reported in other geographical areas as well. We present a case of invasive K. pneumoniae. The patient was initially admitted with diabetic ketoacidosis (DKA); further investigations showed multiple abscesses involving the liver, lungs, brain, and muscles. K. pneumoniae was identified in blood and liver abscess cultures. The patient was managed for DKA as per protocol, and was administered broad-spectrum antibiotics with percutaneous drainage of liver abscess for invasive K. pneumoniae syndrome. In this paper, we highlight the invasive nature of K. pneumoniae, which may aid clinicians in diagnosing and managing similar cases, thereby preventing the associated high morbidity and mortality.
Myocardial infarction (MI) is a critical event that needs timely diagnosis and prompt management.... more Myocardial infarction (MI) is a critical event that needs timely diagnosis and prompt management. Wellens syndrome can progress to MI if not managed in a timely manner. It implies the underlying critical stenosis of the left anterior descending (LAD) artery of the heart. In this report, we discuss an interesting presentation of pseudo-Wellens syndrome in a hypertensive middle-aged woman admitted as a case of Non-ST-elevation myocardial infarction (NSTEMI). During the hospital stay, she had an episode of chest pain with typical ECG changes, suggesting Wellens syndrome. However, upon intervening with coronary angiography, it turned out to be unremarkable for any coronary artery stenosis. She developed another episode of chest pain during her hospital stay with abnormal ECG patterns requiring further investigations with a non-invasive CT scan of coronary arteries and cardiac MRI for any infiltrative diseases. All workups were unremarkable. A multidisciplinary team involving the medical and interventional cardiology departments were involved in the diagnosis, and the patient was labeled as a case of vasospastic angina. She was treated with calcium channel blockers and was followed up as an outpatient for seven months with no further complications. Our main objective was to highlight the interesting phenomenon of Wellens and pseudo-Wellens syndrome. The condition requires early diagnosis and timely management to make sure that no underlying critical pathology is present that can result in fatal complications like MI or cardiac arrest.
Acute kidney injury in the setting of hyperbilirubinemia presents a diagnostic challenge. Hepator... more Acute kidney injury in the setting of hyperbilirubinemia presents a diagnostic challenge. Hepatorenal syndrome takes precedence as a diagnosis in these cases. Bile cast nephropathy is a diagnosis that gets relatively low consideration. The most accurate diagnostic tool for bile cast nephropathy is a renal biopsy, which may present a challenge in certain clinical settings. There are no set guidelines for its management. While the exact cause of the condition is unknown, it is presumed to be secondary to multiple concurrent insults to the kidney including direct toxicity from bile acids, obstruction caused by bile casts, and systemic hypo-perfusion from vasodilation. It is believed that plasmapheresis and albumin dialysis have been associated with some recovery of renal function. We present a case of acute renal failure in a patient with obstructive jaundice, who responded to dialysis and biliary drain insertion.
Fundus imaging is one of the crucial methods that help ophthalmologists for diagnosing the variou... more Fundus imaging is one of the crucial methods that help ophthalmologists for diagnosing the various eye diseases in modern medicine. An accurate vessel segmentation method can be a convenient tool to foresee and analyze fatal diseases, including hypertension or diabetes, which damage the retinal vessel’s appearance. This work suggests an unsupervised approach for vessels segmentation out of retinal images. The proposed method includes multiple steps. Firstly, from the colored retinal image, green channel is extracted and preprocessed utilizing Contrast Limited Histogram Equalization as well as Fuzzy Histogram Based Equalization for contrast enhancement. To expel geometrical articles (macula, optic disk) and noise, top-hat morphological operations are used. On the resulted enhanced image, matched filter and Gabor wavelet filter are applied, and the outputs from both is added to extract vessels pixels. The resulting image with the now noticeable blood vessel is binarized using human vi...
In most of the medical treatments, intravenous catheterization is considered as a first crucial p... more In most of the medical treatments, intravenous catheterization is considered as a first crucial phase, in which health practitioners find the superficial vein to conduct blood sampling or medication procedures. In some patients these veins are hard to localize due to different physiological characteristics such as dark skin tone, scars, vein depth etc., which mostly results in multiple attempts for needle insertion. This causes pain, delayed treatment, bleeding, and even infections. To reduce these risks, an automated veins detection method is needed that can efficiently segment the veins and produce realistic results for cannulation purposes. For this purpose, many imaging modalities such as Photoacoustic, Trans-illumination, ultrasound, Near-Infrared etc. are used. Among these modalities Near-Infrared (NIR) imaging modality is considered most suitable due to its lower cost and non-ionizing nature. Over the past few years, subcutaneous veins localization using NIR have attracted increasing attention in the field of health care and biomedical engineering. Therefore, the proposed research work is based on NIR images for forearm subcutaneous veins segmentation. This paper presents a deep learning-based approach called Generative Adversarial Networks (GAN) for segmentation/localization of forearm veins. GANs have shown exciting results in the medical imaging field recently. These are used for unsupervised feature learning and image-to-image translation applications. These networks generate realistic results by learning data mapping from one state to another. Since GANs can produce state of the art results, therefore we have proposed a Pix2Pix GAN for segmentation of forearm veins. The proposed algorithm is trained and tested on forearm subcutaneous veins image dataset. The proposed model outperforms traditional approaches with the mean accuracy and sensitivity, values obtained are 0.971 and 0.862 respectively. The dice coefficient and Intersection over Union (IoU) score are respectively 0.962 and 0.936 which are better than the state-of-the-art methods. INDEX TERMS Forearm subcutaneous veins, generative adversarial networks, image segmentation, medical image analysis.
2021 23rd International Conference on Advanced Communication Technology (ICACT), 2021
To support effective supply chain management (SCM) is a challenging issue for healthcare sectors.... more To support effective supply chain management (SCM) is a challenging issue for healthcare sectors. In healthcare, the requirements of blood to be fulfilled on demands are always directly or indirectly connected to its supply chain. For that, an effective blood supply chain system is required in which blood relevant information will be traceable at each stage of the blood supply (e.g., from donor to blood recipient), with trust and safety in testing, storage, and distribution phases and to keep the privacy of each donor. This study uses a Blockchain Ethereum platform as a solution to leverage traceability in the blood donation supply chain (BDSC). Blockchain is a highly efficient, decentralized, and peer-to-peer distributed technology deploys to provide end-to-end traceability, safety, immutability, and security in the BDSC ecosystem. As a part of this study, a role-based smart contract solution is used to define the access per each role, which therefore assists to ensure traceability and security of information in the BDSC ecosystem.
Third International Conference on Advances in Applied Science and Environmental Engineering - ASEE 2015, 2015
The new technology demands and rapid utilization of Information technology (IT) have been increas... more The new technology demands and rapid utilization of Information technology (IT) have been increasing day by day, in all over the world. The growing demands of advance Information technology (IT) infrastructures within several Industries and organizations, and the implementation of non-propriety protocols with propriety protocols , caused major performance issues in the terms of communication, data exchange and security. In this proposal, detail survey has been conducted that is based on several computer or/and Information technology (IT) networks deployment with their security requirements and issues. The proposed research thoroughly study the implementations related with communication networks included local area network (LAN) and wide area network (WAN) as part of traditional networks, mobile networks, real time networks and cloud computing networks. Also study the existing Implementations of common protocols that have been used during communication (network communication). This research reviews the exiting implementations related with propriety and non-propriety protocols within networks infrastructures with security implementations. After reviewed the exiting work or implementations in detail, this research proposal proposed a generic model to overcome the communication issues, security weaknesses and proper implementation of security mechanisms with proper placement. The proposed model also tries to overcome the issues that have been situated between real time protocols and traditional protocols during communication.
Thermophysical Properties of Complex Materials, 2020
The studies of strongly coupled complex plasmas are of significant in the area of science and tec... more The studies of strongly coupled complex plasmas are of significant in the area of science and technology. The plasma thermal conductivity strongly coupled (complex) plasmas is of significant in scientific technology, because it behaves as complex fluids. The two-dimensional (2D) plasma thermal conductivity of strongly coupled complex dusty plasmas (SCCDPs) has been investigated by using the homogenous nonequilibrium molecular dynamics (HNEMD) simulations, proposed by Evan-Gillan scheme, at higher screening parameter к. In our case, we have chosen particularly higher screening strength (к) for calculating plasma thermal conductivity. The new simulations of plasma thermal conductivity are computed over an extensive range of plasma states (Г, к) for suitable system sizes by applying the HNEMD simulation method at constant external force field strength (F *). It is found that the plasma thermal conductivity of SCCDP S decreases by increasing plasma states (Г, к). The calculations show that the kinetic energy of SCCDP S depends upon the system temperature (1/Г) and it is independent of к for higher screening parameter. The new results of thermal conductivity obtained from an improved HNEMD algorithm are in satisfactory agreement with earlier known numerical results and experimental data for 2D SCCDP S. It is depicted that the HNEMD method is a powerful tool to calculate an accurate plasma thermal conductivity of 2D SCCDP S .
Plasma Science and Technology - Basic Fundamentals and Modern Applications, 2019
The dynamical structure factor [S(k,ω)] gives the information about static and dynamic properties... more The dynamical structure factor [S(k,ω)] gives the information about static and dynamic properties of complex dusty plasma (CDPs). We have used the equilibrium molecular dynamic (EMD) simulations for the investigation of S(k,ω) of strongly coupled CDPs (SCCDPs). In this work, we have computed all possible values of dynamical density with increasing and decreasing sequences of plasma frequency (ω p) and wave number (k) over a wide range of different combinations of the plasma parameters (κ, Γ). Our new simulation results show that the fluctuation of S(k,ω) increases with increasing Г and it decreases with an increase of κ and N. Moreover, investigation shows that the amplitude of S(k,ω) increases by increasing screening (κ) and wave number (k), and it decreases with increasing Г. Our EMD simulation shows that dynamical density of SCCDPs is slightly dependent on N; however, it is nearly independent of other parameters. The presented results obtained through EMD approach are in reasonable agreement with earlier known results based on different numerical methods and plasma states. It is demonstrated that the presented model is the best tool for estimating the density fluctuation in the SCCDPs over a suitable range of parameters.
A novel homogenous perturbed nonequilibrium molecular dynamics (HPMD) scheme, proposed by Evan-Gi... more A novel homogenous perturbed nonequilibrium molecular dynamics (HPMD) scheme, proposed by Evan-Gillan, has been employed to calculate the thermal conductivity of twodimensional (2D) complex plasma liquids and crystals (CPLCs). The thermal conductivity has been reported using an improved HPMD method under the influence of constant external perturbation with different system sizes (N) and combinations of plasma parameters (Γ, κ). The current HPMD scheme provides precise outcomes with fast convergence for small-to-large N effects over a complete range of (Γ, κ). Temperature scaling law is tested for 2D thermal conductivity with appropriate Einstein frequency and found excellent behaviors. New simulations show that the thermal conductivity of CPLCs depends on (Γ, κ) and N and a slightly decreasing behavior is noted for thermal conductivity with increasing Γ and N but overall thermal conductivity becomes constant at intermediate-to-large Γ. The reported thermal conductivity obtained from present HPMD method, in the limit of low equilibrium perturbation, is established a reasonable agreement with that obtained from earlier known 2D numerical and experimental data. It is demonstrated that the present HPMD method is an alternative efficient tool to compute the thermal conductivity of 2D CPLCs and can be suitable method for complete trends of complex plasmas.
Undoubtedly, the supply chain management (SCM) system is an important part of many organizations ... more Undoubtedly, the supply chain management (SCM) system is an important part of many organizations worldwide; over time, the technologies used to manage a supply chain ecosystem have, therefore, a great impact on businesses’ effectiveness. Among others, numerous developments have been made that targeted to have robust supply chain systems to efficiently manage the growing demands of various supplies, considering the underlying requirements and main challenges such as scalability, specifically privacy and security, of various business networks. Internet of things (IoT) comes with a solution to manage a complex, scalable supply chain system, but to provide and attain enough security during information exchange, along with keeping the privacy of its users, is the great inherent challenge of IoT. To fulfill these limitations, this study designs and models a scaled IoT-based supply chain (IoT-SC) system, comprising several operations and participants, and deploys mechanisms to leverage the...
In order to perform the standard Intravenous (IV) catheterization, subcutaneous veins must be loc... more In order to perform the standard Intravenous (IV) catheterization, subcutaneous veins must be localized. It is a difficult task, especially in the cases when veins are hard to localize. The factors which affect the veins localization process are the physiological characteristics of patients, mainly darker skin tone, scars, hair, dehydration and low blood pressure. With the help of Near Infrared imaging, subcutaneous veins can be envisioned. This is due to the higher absorption of NIR light energy by Hemoglobin (Hb) found in the veins. Besides a superficial view, the veins depth information is also important in order to avoid their rupture by piercing through the walls during IV catheterization process. Diffused reflectance, measured with a camera sensor, can be used for the depth estimation of blood vessels. In this paper, a method to measure the depth of veins using diffused reflectance parameter, is presented. The well-known Monte Carlo model of light propagation in human tissues ...
In this chapter, we report the design and fabrication of an improved speed synchronizer device in... more In this chapter, we report the design and fabrication of an improved speed synchronizer device in which two dc motors has been controlled on different sequences programmed by microcontroller. Depending on the programmed software, the device is used to command a rolling of machines, synchronizes the dc motors speed, and displays the result on liquid crystal display (LCD). Flash memory of the microcontroller is used to program for controlling this device where permanent memory is needed to store different parameters (codes for motor speed, LCD display, ratio control, and rotary encoder's feedback). The present simulation gives new reliable results with better performance for the speed and direction than the earlier available synchronizers. It has been shown that the speed and direction are dependent on both the ratio setting and frequency of encoder in two dc motors speed synchronizer. It is shown that this device is applicable for controlling, monitoring, and synchronizing identical processes and can be implemented in multiple domains, from textile industry and home control applications to industrial instruments.
Transport properties of complex system under various conditions are of practical interest in the ... more Transport properties of complex system under various conditions are of practical interest in the field of science and technology. Homogenous nonequilibrium molecular dynamics (HNEMD) simulations have been employed to calculate the thermal conductivity (λ) of three-dimensional (3D) strongly coupled complex nonideal plasmas (SCCNPs) over a suitable range of plasma parameters (Γ, κ). New investigations show that the λ depending on plasma parameters and minimum value of λ exists at nearly same plasma states. In the present case, the non-Newtonian behavior is checked with different system sizes and it is found that the λ behavior is well matched with earlier numerical work. It is demonstrated that the present outcomes are more consistent than those obtained earlier known simulations. It is revealed that our outcomes can be acceptable for a low range of force field in order to find out the size of linear ranges, and it explains the nature of nonlinearity of SCCNPs. It has been shown that the measured outcomes at steady states of external field of F* (=0.005) are in acceptable agreement with previous numerical outcomes, and it showed that the deviations are within less than 12% for most of the data and depend on plasma states.
In this work, we proposed a novel mechanical alloying method to deposit Ni x-Ti x intermetallic c... more In this work, we proposed a novel mechanical alloying method to deposit Ni x-Ti x intermetallic coating on various metallic substrates using laser treatment. Three different substrates (Al-based alloy, Ti-based alloy, and hypoeutectoid steel) were used, and 50-70 µm thick Ni x Ti x coating was deposited during the process. For mechanical alloying, we used a self-constructed vibratory ball mill (single chamber) and for laser treatment, we used a "TrumpfTruDisk 1000" machine equipped with a four-dimensional control system "Servokon" designed specifically for experimental studies. Different laser beam intensities were used for laser operation. The cross-sectional microstructures of coatings were studied using a scanning electron microscope equipped with a Bruker energy-dispersive X-ray Spectrometer (EDS). Additional investigation of a cross-sectional area of one of the Ni x Ti x-coated samples was performed with field emission high-performance SEM and focused ion beam (FIB). Phase compositions of the obtained coatings, before and after laser treatment, were analyzed using X-Ray diffraction method. After the deposition process, the micro-hardness of the coatings was measured using a Vickers hardness tester. The structure and morphology of the obtained coatings were investigated.
Wireless Communications and Mobile Computing, 2019
Wireless sensor networks (WSNs) deployed in harsh and unfavorable environments become inoperable ... more Wireless sensor networks (WSNs) deployed in harsh and unfavorable environments become inoperable because of the failure of multiple sensor nodes. This results into the division of WSNs into small disjoint networks and causes stoppage of the transmission to the sink node. Furthermore, the internodal collaboration among sensor nodes also gets disturbed. Internodal connectivity is essential for the usefulness of WSNs. The arrangement of this connectivity could be setup at the time of network startup. If multiple sensor nodes fail, the tasks assigned to those nodes cannot be performed; hence, the objective of such WSNs will be compromised. Recently, different techniques for repositioning of sensor nodes to recover the connectivity have been proposed. Although capable to restore connectivity, these techniques do not focus on the coverage loss. The objective of this research is to provide a solution for both coverage and connectivity via an integrated approach. A novel technique to reposi...
The paper focuses on Idara-e-Kissan, a vertically integrated cooperative in the dairy sector, whi... more The paper focuses on Idara-e-Kissan, a vertically integrated cooperative in the dairy sector, which procures fresh milk, processes it and uses the profits earned in urban milk product markets to provide development services to member farmers. The analysis suggests that, compared to a control group of non-members, the cooperative’s members had 29% higher net returns per milk animal, 9% more milk buffaloes, 6% fewer dry buffaloes and they used three times more milk fat-enhancing cottonseed cake. The members had better access to animal vaccination, artificial insemination, and visits from livestock extension workers; they were able to secure more animal treatments per year, and reported greater satisfaction with service provision. The cooperative’s successes were more modest in areas where the benefits of inputs and services provided were more public, e.g. livestock breed improvement and enhancing fodder productivity, indicating that there is an important role for the government in sup...
The Supervisory Control and Data Acquisition (SCADA) system has prominent place and play importan... more The Supervisory Control and Data Acquisition (SCADA) system has prominent place and play important roles within real time industrial communication included "electric stations, oil stations and water purification plants". In this study; the SCADA System main components, architecture and important protocols, which have been used in SCADA message transmission are reviewed. After review, the current research changes the direction (Section: Future Work) to the security of SCADA system and the existing methods or security methods that have been deployed within the SCADA system. This review also gives directions to secure SCADA network communication.
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Papers by aamir shahzad