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49 results on '"Mondal, Saroj"'

1. A Fully On-Chip Tunable Impedance Matching Strategy for Maximum Power Transfer in RF Energy Harvesting Systems

Author

Makwana, Dhruv, Mohan, Arun, Mondal, Saroj, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Darji, Anand D., editor, Joshi, Deepak, editor, Joshi, Amit, editor, and Sheriff, Ray, editor

Published
2023
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5. Low Power, Wideband SiGe HBT LNA Covering 57-64 GHz Band

Author

Singh, Puneet, Mondal, Saroj, Rengarajan, Krishnan S., Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Shah, Ambika Prasad, editor, Dasgupta, Sudeb, editor, Darji, Anand, editor, and Tudu, Jaynarayan, editor

Published
2022
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6. A Micro-strip Antenna for Dual Band Energy Harvesting Applications

Author

Mohan, Arun, Hariharasudhan, K., Mondal, Saroj, Bhattacharaya, Anamiya, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Kumar, Amit, editor, and Mozar, Stefan, editor

Published
2022
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10. On-Chip Threshold Compensated Voltage Doubler for RF Energy Harvesting

Author

Mohan, Arun, Mondal, Saroj, Dan, Surya Shankar, Barbosa, Simone Diniz Junqueira, Editorial Board Member, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Kotenko, Igor, Editorial Board Member, Yuan, Junsong, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Sengupta, Anirban, editor, Dasgupta, Sudeb, editor, Singh, Virendra, editor, Sharma, Rohit, editor, and Kumar Vishvakarma, Santosh, editor

Published
2019
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16. Design Considerations for Efficient Realization of Rectifiers in Microscale Wireless Power Transfer Systems: A Review

Author

Mohan, Arun, Mondal, Saroj, Dan, Surya Shankar, and Paily, Roy P.

Abstract

To ensure optimal power transfer, a wireless power transfer (WPT) system requires an efficient low-cost rectifier for realizing a self-powered wireless sensor node (WSN). This article presents a comprehensive study and analysis of the various rectifier topologies and the accompanying circuit techniques available in the literature to achieve a higher power conversion efficiency (PCE). Based on the circuit topology employed, they are classified into different categories and compared accordingly. For a fair comparison, an ultralow power application scenario of powering a WSN requiring several tens of $\mu \text{W}$ power has been considered. The different passive rectifier topologies suited for low-power applications have been designed and simulated using 0.18- $\mu \text{m}$ standard CMOS technology. It is observed that the auxiliary compensation technique exhibits a peak PCE of ~80%, and a peak PCE variation of ~0.7% and ~4% across different process corners and temperatures, respectively.

Published
2023
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30. Remote Ischemic Preconditioning for Prevention of Contrast-Induced Acute Kidney Injury in Patients of CKD Stage III and IV Undergoing Elective Coronary Angiography: A Randomized Controlled Trial.

Author

Sahu, Raju, Sircar, Dipankar, Mondal, Saroj, Bhattacharjee, Koushik, Sen, Debabrata, Raychoudhury, Arpita, and Pandey, Rajendra

Subjects
ACUTE kidney failure prevention, CHRONIC kidney failure, ELECTIVE surgery, ISCHEMIC preconditioning, CONFIDENCE intervals, CONTRAST media, TERTIARY care, CORONARY angiography, TREATMENT effectiveness, RANDOMIZED controlled trials, ODDS ratio, ACUTE kidney failure, CREATININE
Abstract

Introduction: Contrast-induced acute kidney injury (CI-AKI) is a serious complication of coronary angiography (CA). The aim of this randomized, parallel group, single blind, sham-controlled trial was to assess the safety and efficacy of the remote ischemic preconditioning on the prevention of CI-AKI. Methods: Patients of 18--80 years of age with CKD 3 and 4, who were admitted for elective coronary angiography in a tertiary care hospital in eastern India were randomized in a 1:1 ratio to standard care with ischemic preconditioning (n = 45; intermittent arm ischemia through 4 cycles of 5-min inflation and 5-min deflation of a blood pressure cuff) or with standard care and sham ischemic preconditioning (n = 42). Overall, both study groups were at moderate risk of developing CI-AKI according to the Mehran risk score. The primary endpoint was the incidence of CI-AKI, defined as an increase in serum creatinine ≥25% or ≥0.5 mg/dL above baseline at 48 h after contrast medium exposure. Results: CI-AKI occurred in 8 patients (19.04%) in the control group and 2 (4.4%) in the remote ischemic preconditioning group (odds ratio, 0.198, 95% confidence interval, 0.087 to 0.452; P = 0.04). No major adverse events were related to remote ischemic preconditioning. Conclusions: This study indicates that remote ischemic preconditioning is a simple and well-tolerated procedure, which reduces the incidence of CI-AKI in CKD 3 and 4 patients undergoing coronary angiography. [ABSTRACT FROM AUTHOR]

Published
2021
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31. Micro-scale power management interface circuits for IoT node

Author

Mondal, Saroj

Subjects
ELECTRONICS AND ELECTRICAL ENGINEERING
Abstract

Supervisor : Roy P. Paily, Harvesting energy from ambient sources (i.g., vibration, solar radiation, thermal gradient or RF) has become an attractive and promising option for powering an IoT (Internet-of-Things) node. Extracting the maximum energy, with a minimum loss, from an energy harvesting sources is one of the primary design goals of an energy processing circuit, and to realize it, an optimized energy processing circuitry is required. The energy transfer capability of an energy processing circuit depends on its implementation technology, architecture and circuit topology, input and output voltages, and device sizes. The first part of the thesis focuses on the development of on-chip switched capacitor based DC-DC boost converter for micro-scale energy harvesting systems, the second part focuses on developing an on-chip photovoltaic power harvesting system which has low-overhead adaptive maximum power point tracking scheme, and the final part of the thesis focuses on improving the overall system efficiency by a suitable architectural change.

Published
2017

37. A case of mitral stenosis with achalasia

Author

Kumar, Ashutosh, Majumdar, Biswakes, G, Bhawani, Ghoshdasdtidar, Dipankar, Aggrawal, Binod, Mondal, Saroj, Singh, Rupesh, and Sarkar, Achyut

Subjects
Esophageal Achalasia, Echocardiography, Rheumatic Heart Disease, Contrast Media, Humans, Mitral Valve Stenosis, Female, Barium Sulfate, Deglutition Disorders, Aged
Abstract

A 65-year-old woman with rheumatic heart disease and severe mitral stenosis developed dysphagia. As her dysphagia could not be directly attributed to an enlarged left atrium, she underwent barium swallow, which established the diagnosis of achalasia. This case report shows two unrelated diseases present in the same patient which individually can cause dysphagia.

Published
2010

44. Percutaneous transluminal coronary angioplasty in a patient in cardiogenic shock due to recent anterior wall MI with history of prior inferior wall MI 15 days back.

Author

Kahali D, Mondal S, and Sadhu P

Subjects
Aged, Coronary Artery Disease complications, Drug-Eluting Stents, Humans, Male, Shock, Cardiogenic etiology, Ventricular Dysfunction, Left etiology, Angioplasty, Balloon, Coronary, Coronary Artery Disease therapy, Shock, Cardiogenic therapy
Abstract

Extensive damage of the myocardium following an acute myocardial infarction usually causes cardiogenic shock. A 66-year-old male patient was treated successfully by primary percutaneous transluminal coronary angioplasty (PTCA) following an acute anterior wall myocardial infarction with prior moderate LV systolic dysfunction and developing cardiogenic shock with intra-aortic balloon counterpulsation (IABP), ventilator support and support with four inotropic drugs in full dosage.

Published
2012

45. Management of atrial fibrillation.

Author

Kahali D and Mondal S

Subjects
Adrenergic beta-Antagonists therapeutic use, Angiotensin Receptor Antagonists therapeutic use, Angiotensin-Converting Enzyme Inhibitors therapeutic use, Anticoagulants therapeutic use, Atrial Fibrillation diagnosis, Atrial Fibrillation physiopathology, Atrioventricular Node surgery, Catheter Ablation, Heart Rate, Humans, Hydroxymethylglutaryl-CoA Reductase Inhibitors therapeutic use, Platelet Aggregation Inhibitors therapeutic use, Atrial Fibrillation therapy, Thromboembolism prevention & control
Published
2012

46. Hypertension.

Author

Mondal S and Kahali D

Subjects
Antihypertensive Agents therapeutic use, Baroreflex, Blood Pressure Determination, Denervation, Electric Stimulation Therapy, Humans, Hypertension diagnosis, Kidney innervation, Kidney surgery, Life Style, Hypertension classification, Hypertension therapy
Published
2012

47. "A case of cardiac amyloidosis with syncope".

Author

Majumder B, Kumar A, Dutta G, Bhawani G, Ghoshdastidar D, Khandalwal A, and Mondal S

Subjects
Amyloidosis diagnosis, Amyloidosis diagnostic imaging, Amyloidosis pathology, Biopsy, Cardiomyopathies diagnosis, Cardiomyopathies diagnostic imaging, Cardiomyopathies pathology, Cardiotonic Agents administration & dosage, Cardiotonic Agents therapeutic use, Digoxin therapeutic use, Diuretics therapeutic use, Echocardiography, Doppler, Electrocardiography, Follow-Up Studies, Heart Failure drug therapy, Heart Failure etiology, Humans, Male, Middle Aged, Myocardium pathology, Pacemaker, Artificial, Recurrence, Time Factors, Treatment Outcome, Amyloidosis complications, Cardiomyopathies complications, Syncope etiology
Abstract

A 56 year gentleman referred to our hospital for evaluation of syncope. He was seen previously at a local clinic and treated for cardiac failure with diuretics and was doing well on medication. He started having recurrent episode of syncope. He had his last visit to the local physician three days prior to admission when he had palpitation and was prescribed digoxin in addition to the usual medicine. Patient started having syncope from 3rd day and was referred to our hospital for evaluation. Patient's electrocardiogram as well as echocardiography was a classical finding of cardiac amyloidosis and a fat pad biopsy confirmed the diagnosis. After withdrawing digoxin and after two days on pacemaker, the patient regained normal heart rate and was discharged on diuretics.

Published
2010

48. Primary and secondary prevention of coronary artery disease.

Author

Kahali D, Dey T, and Mondal S

Subjects
Coronary Artery Disease diagnosis, Coronary Artery Disease etiology, Humans, Risk Factors, Coronary Artery Disease prevention & control, Primary Prevention, Secondary Prevention
Published
2009

49. Dysphagia aortica.

Author

Majumder B, Kumar A, Ranjan P, and Mondal S

Subjects
Adult, Aortic Diseases etiology, Aortic Diseases pathology, Deglutition Disorders etiology, Deglutition Disorders pathology, Humans, Male, Marfan Syndrome physiopathology, Subclavian Artery, Aortic Aneurysm, Abdominal complications, Aortic Diseases diagnosis, Deglutition Disorders diagnosis
Abstract

Extrinsic esophageal compression leading to dysphagia is a recognized but uncommon presentation of thoracic aortic aneurysms. This has been referred to as dysphagia aortica, and is a late presentation of large thoracic aneurysms. We present the case of a young man of age 31 years, who was referred to us for cardiological evaluation for on and off chest pain and backache with dysphagia and abnormal chest X-ray showing dilated descending aorta. Eventually, thoracic-abdominal aortic aneurysm causing compression of the esophagus was discovered. When dealing with patients who present with dysphagia and on and off chest pain and backache if no other cause is discovered, a thoracic aortic aneurysm should form part of the differential diagnosis, as this is potentially curable, and delay in diagnosis and treatment predisposes to rupture and death.

Published
2008

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