Zenodo (CERN European Organization for Nuclear Research), Apr 2, 2020
Some of the KWU pre-KONVOI PWRs operating across Europe saw a systematic increase in the neutron ... more Some of the KWU pre-KONVOI PWRs operating across Europe saw a systematic increase in the neutron noise levels over several cycles in the last decade, and subsequently, core internals' movements, especially vibrations of fuel assemblies with specific designs were identified as one of the plausible causes. Therefore, it is important to develop computational methods that can allow to investigate and predict the reactor noise response to fuel assemblies vibrations. To this aim, the 3D nodal reactor dynamics code SIMULATE-3K is used at PSI with a special module called the 'assembly vibration model' that imitates time-dependent motions of fuel assemblies by dynamically modifying the water-gaps surrounding the laterally moving fuel assemblies. The varying water-gaps are represented by the variation in the corresponding two-group macroscopic cross sections generated using the lattice code CASMO-5 in 2D. The studies conducted so far to assess the methodology for full core noise simulations were based on assuming vibrations of a clamped-free cluster of fuel assemblies that are unsupported from both ends. However, as this represents a non-physical movement, further developments were made at PSI to allow simulating more realistic movements of fuel assemblies such as the cantilevered mode vibration. The updated methodology, along with evaluations of the simulated noise response to realistic vibration modes, is presented in this paper. Results show that, as expected, the radial and axial neutron noise behaviour follow the vibration pattern of the imposed timedependent axial functions corresponding to the natural oscillation modes of the fuel assemblies, thereby providing confidence in the application of the developed methodology for numerical neutron noise analyses of the PWR cores.
INTRODUCTION Distal 1/3 rd fracture of humerus are difficult to manage owing to their complex reg... more INTRODUCTION Distal 1/3 rd fracture of humerus are difficult to manage owing to their complex regional anatomy. These fractures are often displaced and rotated so proper anatomical reduction is of prime importance to the management. Both non operative and operative methods have been proposed for the management but in recent times surgical intervention has taken a lead. 1-4 Pop cast or Sarmiento's functional brace have been used to manage these fractures but the fractures distal third of the humerus are very difficult to treat with brace owing to rotational forces acting on it which leads to mal-alignment. 2,5,6 Operative management of these fractures with stable internal fixation is also a tough task owing to proximity ABSTRACT Background: The complex anatomy of distal humerus with proximity of radial nerve make the exposure and fixation of these fractures difficult. The standard technique of plate osteosynthesis consider at least eight cortices hold in both distal and proximal ends. Obeying these principles becomes difficult in distal humerus fractures. These difficulties have been overcome with the use of anatomical extra-articular distal humerus plate which has more hole density in the distal part with 3.5 mm screws for greater hold in distal part. Methods: A prospective study was carried out at Institute of Medical Sciences BHU Trauma Centre for 19 cases of distal third fracture excluding open fractures of patients between 18-68 years who attended our OPD or Emergency from June 2017 to July 2019. All patients were operated with the triceps-reflecting modified posterior approach. Regular follow-up was done to evaluate elbow functionality, fracture union, secondary displacement, non-union, implant failure and any complications; Mayo Elbow Performance score (MEPS) was used for the final functional assessment. Results: Fourteen 73.6% male and 5 (26.3%) female patients with mean age 41 years constituted the study group, who had an average follow-up of 17.1 months. Preoperatively one patient had radial nerve palsy (neuropraxia) who recovered completely 3 months after surgery. Overall, 18 (94.7%) patients were adjudged to have complete radiological union within 14 weeks; Mean flexion achieved was 134±11.5 (range 90-140). Average MEPS at the latest follow-up was 94.7±7.5. Conclusions: Extra-articular fractures of distal humerus can be satisfactorily treated with the use of single anatomically pre-contoured locking compression plate with excellent elbow functional range of motion and union rates.
In the study of the neutron noise in KWU pre-Konvoi PWRs, techniques, such as The Hilbert Huang T... more In the study of the neutron noise in KWU pre-Konvoi PWRs, techniques, such as The Hilbert Huang Transform, but mainly traditional Fourier analysis is used widely to infer spectral characteristics, nevertheless these techniques exhibit important limitations in decomposing the signal so that we can distinguish the contribution of different phenomena (thermal-hydraulic and mechanical perturbations) in the same frequency range. Besides, there are difficulties to gather and present all the results in a single plot which shows the response of the core as a whole, making complex the data visualization. To overcome these limitations, an alternative methodology is researched, the so-called, Operational Modal Analysis (OMA), concretely the Frequency Domain Decomposition (FDD). This methodology is widely used in the study of the dynamic properties of systems and structures. The FDD was performed on a series of neutron noise signals from simulated scenarios based on the transient nodal code SIMULATE-3K. The simulations considered assume different sets of perturbation, from individual sources of fluctuations to combined sources. The methodology separates in the two first singular values and singular vectors the responses due to mechanical vibrations and thermal-hydraulic fluctuation in all the frequency range, in such a way that allows distinguishing different phenomena taking place at an equal frequency range as well as the increase of the response due to each phenomenon. The good performance of OMA in the present study provides promising possibilities to infer characteristics of the input excitation from the neutron noise data in PWR. Finally, the methodology shows remarkable advantages in the compilation of the results which can be utilized for monitoring purposes.
Background: The aim of this study was to evaluate the effect of proximal fibular osteotomy in rel... more Background: The aim of this study was to evaluate the effect of proximal fibular osteotomy in relieving pain and functional improvement in patients of osteoarthritis knee. Methods: We selected 38 patients with KOA, out of which 30 patients gave written informed consent and underwent proximal fibular osteotomy. The median time of follow-up was 13.3 months. Preoperative and postoperative weightbearing and whole lower extremity radiographs were obtained to analyse the alignment of the lower extremity (tibiofemoral angle) and ratio of the knee joint space (medial/lateral compartment). Assessment of knee pain was done using a visual analogue scale, and knee functional activities were evaluated using the American Knee Society score (KSS 1 and 2) preoperatively and postoperatively. Results: Pain relief was observed in almost all patients after proximal fibular osteotomy. Weight-bearing lower extremity radiographs showed significant change in tibio-femoral angle an average increase in the postoperative medial knee joint space. Additionally, obvious change in alignment was observed in the whole lower extremity radiographs in 24 out of 30 patients. In three patients tibio-femoral angle showed progressive more varus alignment after proximal fibulectomy. Conclusions: In short-term study, proximal fibular osteotomy provides pain relief and functional wellbeing to the patients of KOA.
BackgroundTo fill the gap in patient‐reported outcome (PRO) assessment in children with cancer in... more BackgroundTo fill the gap in patient‐reported outcome (PRO) assessment in children with cancer in India, we planned to adapt domains from the HealthMeasures Patient Reported Outcomes Measurement Information System (PROMIS) tool. This study attempted to identify and pool outcomes relevant to children with cancer and their caregivers in Northern India.MethodsThe study was qualitative and conducted through focussed group discussions (FGDs) and in‐depth interviews of children with cancer and their caregivers. Content analysis of transcripts from the sessions was done. The collected themes were collated with existing item banks of the PROMIS tool and new concepts unique to our population were compiled.ResultsA set of three FGDs and 14 interviews each for children and their caregivers were conducted. Following content analysis, 121 themes were identified including 10 new concepts. Themes pertaining to the physical domain were cited most. The theme distribution across the three domains was similar among children and caregivers. In the survivor cohort, the relative frequency of mention of psychological and social themes was higher compared to the whole cohort. Themes pertaining to mobility, cognitive dysfunction and peer relationships were more common among survivors.ConclusionsThis qualitative study in children with cancer and their caregivers in India has facilitated a better understanding of the issues pertaining to cancer care that are of most importance to its stake holders. The themes collected may be used to formulate a PRO tool uniquely tailored for use in this population.
Partial mandibulectomy can result the mandibular defect which needs surgical and prosthetic inter... more Partial mandibulectomy can result the mandibular defect which needs surgical and prosthetic intervention. This case report describes the functional and esthetic rehabilitation of the defect with the wrap around swing-lock prosthesis using acetyl resin after the surgical rehabilitation with fibula free flap.
Objectives: To analyze the effect of indigenous bicentric bipolar prosthesis on horizontal and ve... more Objectives: To analyze the effect of indigenous bicentric bipolar prosthesis on horizontal and vertical offsets in fracture neck of femur when compared to contralateral normal hip and to evaluate functional outcomes. We hypothesized that our non-modular bipolar device restores satisfactory offsets in such patients. Methods: All active elderly patients with displaced fracture NOF having contralateral normal hip were included. We used an indigenous bicentric bipolar hip-prosthesis, which is a non-modular single-piece device in all cases by lateral Hardinge approach. Postoperative radiograph AP view was taken in 15 internal rotation to decrease the effect of limb rotation on offset. CT scan was also used to evaluate offsets using ADW4.6 ADVANCED GE optima 128 slice software system. Subjects were followed for a minimum of 12 months postoperatively and functional outcome of effect of offsets change were evaluated by modified Harris Hip Score. Results: There is minimal difference in horizontal and vertical offset after bicentric bipolar hemireplacement which is statistically insignificant supporting our hypothesis. The clinical outcomes were good to fair according to modified Harris Hip Score. The mean value of horizontal offset after our bipolar hemireplacement was 42.4 ± 2.04 mm and of normal hip was 41.8 ± 1.81 mm and P-value¼0.08 in plain radiographs and value of horizontal offset in CT scan was 40.73 ± 0.27on bipolar side and 41.19 ± 0.77 on normal side. Vertical offset after bicentric bipolar was 32.67 ± 2.85 mm and vertical offset of normal hip was 32.53 ± 2.73 mm. Mean 9.77 ± 1.09 mm of calcar was preserved. Modified Harris Hip Score at 6 and 12 months postoperatively was 75.78 ± 4.16 and 79.53 ± 3.95 respectively. There was no incidence of hip dislocation. Conclusion: Our study data clearly demonstrates that vertical and horizontal offsets are effectively maintained by the indigenous bicentric hip device. There was insignificant change in offsets as compared to contralateral normal side due to its design modifications. Indigenous bicentric non-modular bipolar device offers an excellent option for femur neck fractures in elderly patients in resource constrained situations. It allows rapid rehabilitation due to reduced surgical time, minimal blood loss and early return to function and activities of daily living.
In today's world, organizations like Google, Yahoo, Amazon, Facebook etc. are facing drastic incr... more In today's world, organizations like Google, Yahoo, Amazon, Facebook etc. are facing drastic increase in data. This leads to the problem of capturing, storing, managing and analyzing terabytes or petabytes of data, stored in multiple formats, from different internal and external sources. Moreover, new applications scenarios like weather forecasting, trading, artificial intelligence etc. need huge data processing in real time. These requirements exceed the processing capacity of traditional on-disk database management systems to manage this data and to give speedy real time results. Therefore, data management needs new solutions for coping with the challenges of data volumes and processing data in real-time. An in-memory database system (IMDS) is a latest breed of database management system which is becoming answer to above challenges with other supporting technologies. IMDS is capable to process massive data distinctly faster. This paper explores IMDS approach and its associated design issues and challenges. It also investigates some famous commercial and open-source IMDS solutions available in the market. Keywords-In-Memory Database System (IMDS), Design issues and challenges for IMDS, Commercial and open-source IMDS.
The objective of this research paper is to check the difference between pre and post-session of t... more The objective of this research paper is to check the difference between pre and post-session of the Brighter Minds based Cognitive Skill Training. The exploratory and descriptive research design is used in this study. In this investigation, the nine measurement variables are selected for the study such as memory, confidence, concentration, intuition ability, and blindfold reading. All the measurement variables were tested under pre and post cognitive skill training. Apart from these behavioural variables, two variables, gender, and age were also measured. The paired t test is used for the comparison between the pre and post-session of cognitive skill training. The pie and bar chart is used for the pictorial presentation of the results. The data coding, value label, data analysis are performed through statistical software. The findings of this study concluded that there was a significant improvement in the student’s memory, confidence, concentration, intuition, and skill of reading a...
The use of machine learning in the field of reactor safety and noise diagnostics has recently see... more The use of machine learning in the field of reactor safety and noise diagnostics has recently seen great potential given the advancements made in computational tools, hardware and noise simulations. In this work we demonstrate how deep neural networks, specifically recurrent and convolutional neural networks can be trained in a synthetic setting and aligned to operate on real plant measurements to recover perturbation type and origin location from time-series signals. We first utilize the vast quantities of synthetic data generated from the extended SIMULATE-3K codes, simulating a Swiss 3-loop pre-KONVOI reactor to train our networks under a variety of differing perturbation settings. Additionally, we extend these approaches to operate in the setting of unsupervised real plant measurements, where information about the true perturbation characteristics is unknown. As such, we show the applicability of a self-supervised domain adaptation approach to correctly align the representations learned by the neural network between both the synthetic and real detector readings to more concretely classify and localize perturbation. We validate our approaches under a number of experimental analyses showing successful performance in both simulated and synthetic domains.
A population explosion has resulted in garbage generation on a large scale. The process of proper... more A population explosion has resulted in garbage generation on a large scale. The process of proper and automatic garbage collection is a challenging and tedious task for developing countries. This paper proposes a deep learning-based intelligent garbage detection system using an Unmanned Aerial Vehicle (UAV). The main aim of this paper is to provide a low-cost, accurate and easy-to-use solution for handling the garbage effectively. It also helps municipal corporations to detect the garbage areas in remote locations automatically. This automation was derived using two Convolutional Neural Network (CNN) models and images of solid waste were captured by the drone. Both models were trained on the collected image dataset at different learning rates, optimizers and epochs. This research uses symmetry during the sampling of garbage images. Homogeneity regarding resizing of images is generated due to the application of symmetry to extract their characteristics. The performance of two CNN mod...
Processing a user’s voice command includes parsing the command to derive the components referred ... more Processing a user’s voice command includes parsing the command to derive the components referred to therein. These identified components or arguments are then mapped to items or objects in the real world in a process known as “grounding.” In some cases, transcription inaccuracies can make it infeasible for a virtual assistant or other application to achieve accurate grounding, thus making it impossible to service the user’s command. This disclosure describes techniques to improve grounding by taking into account the top N highest-likelihood transcriptions for a user’s voice command along with contextual information accessed with the user’s permission. Improved query interpretation can enable a virtual assistant or other application to accurately interpret the command and thereby improve user experience
Some of the KWU pre-KONVOI PWRs operating across Europe saw a systematic increase in the neutron ... more Some of the KWU pre-KONVOI PWRs operating across Europe saw a systematic increase in the neutron noise levels over several cycles in the last decade, and subsequently, core internals’ movements, especially vibrations of fuel assemblies with specific designs were identified as one of the plausible causes. Therefore, it is important to develop computational methods that can allow to investigate and predict the reactor noise response to fuel assemblies vibrations. To this aim, the 3D nodal reactor dynamics code SIMULATE-3K is used at PSI with a special module called the ‘assembly vibration model’ that imitates time-dependent motions of fuel assemblies by dynamically modifying the water-gaps surrounding the laterally moving fuel assemblies. The varying water-gaps are represented by the variation in the corresponding two-group macroscopic cross sections generated using the lattice code CASMO-5 in 2D. The studies conducted so far to assess the methodology for full core noise simulations w...
Zenodo (CERN European Organization for Nuclear Research), Apr 2, 2020
Some of the KWU pre-KONVOI PWRs operating across Europe saw a systematic increase in the neutron ... more Some of the KWU pre-KONVOI PWRs operating across Europe saw a systematic increase in the neutron noise levels over several cycles in the last decade, and subsequently, core internals' movements, especially vibrations of fuel assemblies with specific designs were identified as one of the plausible causes. Therefore, it is important to develop computational methods that can allow to investigate and predict the reactor noise response to fuel assemblies vibrations. To this aim, the 3D nodal reactor dynamics code SIMULATE-3K is used at PSI with a special module called the 'assembly vibration model' that imitates time-dependent motions of fuel assemblies by dynamically modifying the water-gaps surrounding the laterally moving fuel assemblies. The varying water-gaps are represented by the variation in the corresponding two-group macroscopic cross sections generated using the lattice code CASMO-5 in 2D. The studies conducted so far to assess the methodology for full core noise simulations were based on assuming vibrations of a clamped-free cluster of fuel assemblies that are unsupported from both ends. However, as this represents a non-physical movement, further developments were made at PSI to allow simulating more realistic movements of fuel assemblies such as the cantilevered mode vibration. The updated methodology, along with evaluations of the simulated noise response to realistic vibration modes, is presented in this paper. Results show that, as expected, the radial and axial neutron noise behaviour follow the vibration pattern of the imposed timedependent axial functions corresponding to the natural oscillation modes of the fuel assemblies, thereby providing confidence in the application of the developed methodology for numerical neutron noise analyses of the PWR cores.
INTRODUCTION Distal 1/3 rd fracture of humerus are difficult to manage owing to their complex reg... more INTRODUCTION Distal 1/3 rd fracture of humerus are difficult to manage owing to their complex regional anatomy. These fractures are often displaced and rotated so proper anatomical reduction is of prime importance to the management. Both non operative and operative methods have been proposed for the management but in recent times surgical intervention has taken a lead. 1-4 Pop cast or Sarmiento's functional brace have been used to manage these fractures but the fractures distal third of the humerus are very difficult to treat with brace owing to rotational forces acting on it which leads to mal-alignment. 2,5,6 Operative management of these fractures with stable internal fixation is also a tough task owing to proximity ABSTRACT Background: The complex anatomy of distal humerus with proximity of radial nerve make the exposure and fixation of these fractures difficult. The standard technique of plate osteosynthesis consider at least eight cortices hold in both distal and proximal ends. Obeying these principles becomes difficult in distal humerus fractures. These difficulties have been overcome with the use of anatomical extra-articular distal humerus plate which has more hole density in the distal part with 3.5 mm screws for greater hold in distal part. Methods: A prospective study was carried out at Institute of Medical Sciences BHU Trauma Centre for 19 cases of distal third fracture excluding open fractures of patients between 18-68 years who attended our OPD or Emergency from June 2017 to July 2019. All patients were operated with the triceps-reflecting modified posterior approach. Regular follow-up was done to evaluate elbow functionality, fracture union, secondary displacement, non-union, implant failure and any complications; Mayo Elbow Performance score (MEPS) was used for the final functional assessment. Results: Fourteen 73.6% male and 5 (26.3%) female patients with mean age 41 years constituted the study group, who had an average follow-up of 17.1 months. Preoperatively one patient had radial nerve palsy (neuropraxia) who recovered completely 3 months after surgery. Overall, 18 (94.7%) patients were adjudged to have complete radiological union within 14 weeks; Mean flexion achieved was 134±11.5 (range 90-140). Average MEPS at the latest follow-up was 94.7±7.5. Conclusions: Extra-articular fractures of distal humerus can be satisfactorily treated with the use of single anatomically pre-contoured locking compression plate with excellent elbow functional range of motion and union rates.
In the study of the neutron noise in KWU pre-Konvoi PWRs, techniques, such as The Hilbert Huang T... more In the study of the neutron noise in KWU pre-Konvoi PWRs, techniques, such as The Hilbert Huang Transform, but mainly traditional Fourier analysis is used widely to infer spectral characteristics, nevertheless these techniques exhibit important limitations in decomposing the signal so that we can distinguish the contribution of different phenomena (thermal-hydraulic and mechanical perturbations) in the same frequency range. Besides, there are difficulties to gather and present all the results in a single plot which shows the response of the core as a whole, making complex the data visualization. To overcome these limitations, an alternative methodology is researched, the so-called, Operational Modal Analysis (OMA), concretely the Frequency Domain Decomposition (FDD). This methodology is widely used in the study of the dynamic properties of systems and structures. The FDD was performed on a series of neutron noise signals from simulated scenarios based on the transient nodal code SIMULATE-3K. The simulations considered assume different sets of perturbation, from individual sources of fluctuations to combined sources. The methodology separates in the two first singular values and singular vectors the responses due to mechanical vibrations and thermal-hydraulic fluctuation in all the frequency range, in such a way that allows distinguishing different phenomena taking place at an equal frequency range as well as the increase of the response due to each phenomenon. The good performance of OMA in the present study provides promising possibilities to infer characteristics of the input excitation from the neutron noise data in PWR. Finally, the methodology shows remarkable advantages in the compilation of the results which can be utilized for monitoring purposes.
Background: The aim of this study was to evaluate the effect of proximal fibular osteotomy in rel... more Background: The aim of this study was to evaluate the effect of proximal fibular osteotomy in relieving pain and functional improvement in patients of osteoarthritis knee. Methods: We selected 38 patients with KOA, out of which 30 patients gave written informed consent and underwent proximal fibular osteotomy. The median time of follow-up was 13.3 months. Preoperative and postoperative weightbearing and whole lower extremity radiographs were obtained to analyse the alignment of the lower extremity (tibiofemoral angle) and ratio of the knee joint space (medial/lateral compartment). Assessment of knee pain was done using a visual analogue scale, and knee functional activities were evaluated using the American Knee Society score (KSS 1 and 2) preoperatively and postoperatively. Results: Pain relief was observed in almost all patients after proximal fibular osteotomy. Weight-bearing lower extremity radiographs showed significant change in tibio-femoral angle an average increase in the postoperative medial knee joint space. Additionally, obvious change in alignment was observed in the whole lower extremity radiographs in 24 out of 30 patients. In three patients tibio-femoral angle showed progressive more varus alignment after proximal fibulectomy. Conclusions: In short-term study, proximal fibular osteotomy provides pain relief and functional wellbeing to the patients of KOA.
BackgroundTo fill the gap in patient‐reported outcome (PRO) assessment in children with cancer in... more BackgroundTo fill the gap in patient‐reported outcome (PRO) assessment in children with cancer in India, we planned to adapt domains from the HealthMeasures Patient Reported Outcomes Measurement Information System (PROMIS) tool. This study attempted to identify and pool outcomes relevant to children with cancer and their caregivers in Northern India.MethodsThe study was qualitative and conducted through focussed group discussions (FGDs) and in‐depth interviews of children with cancer and their caregivers. Content analysis of transcripts from the sessions was done. The collected themes were collated with existing item banks of the PROMIS tool and new concepts unique to our population were compiled.ResultsA set of three FGDs and 14 interviews each for children and their caregivers were conducted. Following content analysis, 121 themes were identified including 10 new concepts. Themes pertaining to the physical domain were cited most. The theme distribution across the three domains was similar among children and caregivers. In the survivor cohort, the relative frequency of mention of psychological and social themes was higher compared to the whole cohort. Themes pertaining to mobility, cognitive dysfunction and peer relationships were more common among survivors.ConclusionsThis qualitative study in children with cancer and their caregivers in India has facilitated a better understanding of the issues pertaining to cancer care that are of most importance to its stake holders. The themes collected may be used to formulate a PRO tool uniquely tailored for use in this population.
Partial mandibulectomy can result the mandibular defect which needs surgical and prosthetic inter... more Partial mandibulectomy can result the mandibular defect which needs surgical and prosthetic intervention. This case report describes the functional and esthetic rehabilitation of the defect with the wrap around swing-lock prosthesis using acetyl resin after the surgical rehabilitation with fibula free flap.
Objectives: To analyze the effect of indigenous bicentric bipolar prosthesis on horizontal and ve... more Objectives: To analyze the effect of indigenous bicentric bipolar prosthesis on horizontal and vertical offsets in fracture neck of femur when compared to contralateral normal hip and to evaluate functional outcomes. We hypothesized that our non-modular bipolar device restores satisfactory offsets in such patients. Methods: All active elderly patients with displaced fracture NOF having contralateral normal hip were included. We used an indigenous bicentric bipolar hip-prosthesis, which is a non-modular single-piece device in all cases by lateral Hardinge approach. Postoperative radiograph AP view was taken in 15 internal rotation to decrease the effect of limb rotation on offset. CT scan was also used to evaluate offsets using ADW4.6 ADVANCED GE optima 128 slice software system. Subjects were followed for a minimum of 12 months postoperatively and functional outcome of effect of offsets change were evaluated by modified Harris Hip Score. Results: There is minimal difference in horizontal and vertical offset after bicentric bipolar hemireplacement which is statistically insignificant supporting our hypothesis. The clinical outcomes were good to fair according to modified Harris Hip Score. The mean value of horizontal offset after our bipolar hemireplacement was 42.4 ± 2.04 mm and of normal hip was 41.8 ± 1.81 mm and P-value¼0.08 in plain radiographs and value of horizontal offset in CT scan was 40.73 ± 0.27on bipolar side and 41.19 ± 0.77 on normal side. Vertical offset after bicentric bipolar was 32.67 ± 2.85 mm and vertical offset of normal hip was 32.53 ± 2.73 mm. Mean 9.77 ± 1.09 mm of calcar was preserved. Modified Harris Hip Score at 6 and 12 months postoperatively was 75.78 ± 4.16 and 79.53 ± 3.95 respectively. There was no incidence of hip dislocation. Conclusion: Our study data clearly demonstrates that vertical and horizontal offsets are effectively maintained by the indigenous bicentric hip device. There was insignificant change in offsets as compared to contralateral normal side due to its design modifications. Indigenous bicentric non-modular bipolar device offers an excellent option for femur neck fractures in elderly patients in resource constrained situations. It allows rapid rehabilitation due to reduced surgical time, minimal blood loss and early return to function and activities of daily living.
In today's world, organizations like Google, Yahoo, Amazon, Facebook etc. are facing drastic incr... more In today's world, organizations like Google, Yahoo, Amazon, Facebook etc. are facing drastic increase in data. This leads to the problem of capturing, storing, managing and analyzing terabytes or petabytes of data, stored in multiple formats, from different internal and external sources. Moreover, new applications scenarios like weather forecasting, trading, artificial intelligence etc. need huge data processing in real time. These requirements exceed the processing capacity of traditional on-disk database management systems to manage this data and to give speedy real time results. Therefore, data management needs new solutions for coping with the challenges of data volumes and processing data in real-time. An in-memory database system (IMDS) is a latest breed of database management system which is becoming answer to above challenges with other supporting technologies. IMDS is capable to process massive data distinctly faster. This paper explores IMDS approach and its associated design issues and challenges. It also investigates some famous commercial and open-source IMDS solutions available in the market. Keywords-In-Memory Database System (IMDS), Design issues and challenges for IMDS, Commercial and open-source IMDS.
The objective of this research paper is to check the difference between pre and post-session of t... more The objective of this research paper is to check the difference between pre and post-session of the Brighter Minds based Cognitive Skill Training. The exploratory and descriptive research design is used in this study. In this investigation, the nine measurement variables are selected for the study such as memory, confidence, concentration, intuition ability, and blindfold reading. All the measurement variables were tested under pre and post cognitive skill training. Apart from these behavioural variables, two variables, gender, and age were also measured. The paired t test is used for the comparison between the pre and post-session of cognitive skill training. The pie and bar chart is used for the pictorial presentation of the results. The data coding, value label, data analysis are performed through statistical software. The findings of this study concluded that there was a significant improvement in the student’s memory, confidence, concentration, intuition, and skill of reading a...
The use of machine learning in the field of reactor safety and noise diagnostics has recently see... more The use of machine learning in the field of reactor safety and noise diagnostics has recently seen great potential given the advancements made in computational tools, hardware and noise simulations. In this work we demonstrate how deep neural networks, specifically recurrent and convolutional neural networks can be trained in a synthetic setting and aligned to operate on real plant measurements to recover perturbation type and origin location from time-series signals. We first utilize the vast quantities of synthetic data generated from the extended SIMULATE-3K codes, simulating a Swiss 3-loop pre-KONVOI reactor to train our networks under a variety of differing perturbation settings. Additionally, we extend these approaches to operate in the setting of unsupervised real plant measurements, where information about the true perturbation characteristics is unknown. As such, we show the applicability of a self-supervised domain adaptation approach to correctly align the representations learned by the neural network between both the synthetic and real detector readings to more concretely classify and localize perturbation. We validate our approaches under a number of experimental analyses showing successful performance in both simulated and synthetic domains.
A population explosion has resulted in garbage generation on a large scale. The process of proper... more A population explosion has resulted in garbage generation on a large scale. The process of proper and automatic garbage collection is a challenging and tedious task for developing countries. This paper proposes a deep learning-based intelligent garbage detection system using an Unmanned Aerial Vehicle (UAV). The main aim of this paper is to provide a low-cost, accurate and easy-to-use solution for handling the garbage effectively. It also helps municipal corporations to detect the garbage areas in remote locations automatically. This automation was derived using two Convolutional Neural Network (CNN) models and images of solid waste were captured by the drone. Both models were trained on the collected image dataset at different learning rates, optimizers and epochs. This research uses symmetry during the sampling of garbage images. Homogeneity regarding resizing of images is generated due to the application of symmetry to extract their characteristics. The performance of two CNN mod...
Processing a user’s voice command includes parsing the command to derive the components referred ... more Processing a user’s voice command includes parsing the command to derive the components referred to therein. These identified components or arguments are then mapped to items or objects in the real world in a process known as “grounding.” In some cases, transcription inaccuracies can make it infeasible for a virtual assistant or other application to achieve accurate grounding, thus making it impossible to service the user’s command. This disclosure describes techniques to improve grounding by taking into account the top N highest-likelihood transcriptions for a user’s voice command along with contextual information accessed with the user’s permission. Improved query interpretation can enable a virtual assistant or other application to accurately interpret the command and thereby improve user experience
Some of the KWU pre-KONVOI PWRs operating across Europe saw a systematic increase in the neutron ... more Some of the KWU pre-KONVOI PWRs operating across Europe saw a systematic increase in the neutron noise levels over several cycles in the last decade, and subsequently, core internals’ movements, especially vibrations of fuel assemblies with specific designs were identified as one of the plausible causes. Therefore, it is important to develop computational methods that can allow to investigate and predict the reactor noise response to fuel assemblies vibrations. To this aim, the 3D nodal reactor dynamics code SIMULATE-3K is used at PSI with a special module called the ‘assembly vibration model’ that imitates time-dependent motions of fuel assemblies by dynamically modifying the water-gaps surrounding the laterally moving fuel assemblies. The varying water-gaps are represented by the variation in the corresponding two-group macroscopic cross sections generated using the lattice code CASMO-5 in 2D. The studies conducted so far to assess the methodology for full core noise simulations w...
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Papers by VISHAL VERMA