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Ultra-high suppression microwave photonic bandstop filters

Chinese Science Bulletin 2014年第22期59卷 2684-2692页

作者： David Marpaung Blair Morrison Mattia Pagani ravi pant Benjamin J.Eggleton Centre for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS) the Institute of Photonics and Optical Sciences (IPOS) School of Physics University of Sydney Sydney NSW 2006 Australia

A bandstop radio frequency(RF)filter can enhance the capabilities of RF communication systems by removing unwanted signal components such as distortion,or *** modern cognitive radio systems,frequency agile filters are desired to block interferers with dynamically changing frequencies and *** filters should be tunable over a broad frequency range,and they should be capable of suppressing very strong signals with a high *** simultaneously meet these requirements with traditional RF filters are highly *** photonic(MWP),a technology that primary deals with the generation,distribution,and processing of high speed RF signals using photonic techniques and components,is promising for creating frequency agile RF ***,traditional MWP filters are lacking the high resolution and peak suppression exhibited by state-ofthe-art RF electrical *** recently introduced a new class of MWP notch filter which is free from this *** scheme allowed the creation of anomalously high suppression MWP notch filter from virtually any kind of optical resonance,irrespective of its type(gain or absorption),or its *** enabled,for the first time,simultaneous optimization of the MWP filter resolution,peak attenuation,and frequency tuning *** this paper,we present the analysis of notch filter response creation using the novel sideband processing *** thenshow the applicability of this technique to a wide range of optical *** compare simulated and experimental results of the notch filter response created using three types of optical filter commonly used in MWP signal processing,namely stimulated Brillouin scattering(SBS),an integrated optical ring resonator(ORR),and a phase-shifted fiber Bragg-grating(FBG).

关键词： RF滤波器微波光子陷波滤波器光学滤波器受激布里渊散射 RF信号光子技术频率捷变

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3D printing applications for healthcare research and development

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Global Health Journal 2022年第4期6卷 217-226页

作者： Mohd Javaid Abid Haleem ravi Pratap Singh Rajiv Suman Department of Mechanical Engineering Jamia Millia IslamiaNew Delhi 110025India Department of Industrial and Production Engineering Dr B R Ambedkar National Institute of Technology JalandharPunjab 144011India Department of Industrial and Production Engineering G.B.pant University of Agriculture and Technology PantnagarUttarakhand 263145India

There is a growing demand for customised,biocompatible,and sterilisable components in the medical busi-ness.3D Printing is a disruptive technology for healthcare and provides significant research and development *** 3D printing service gives patients low-cost individualised prostheses,implants,and gadgets,en-abling surgeons to operate more effectively with customised equipment and models;and assisting medical device manufacturers in developing new and faster goods.3D printed tissue pieces can overcome various challenges and may eventually allow medication companies to streamline research and *** the long run,it may also assist in lowering prices and making medicines more accessible and effective for *** is a growing corpus of research on the advantages of employing 3D printed anatomic models in teaching and *** capacity to 3D printing individual anatomical diseases for practical learning is one of the funda-mental contrasts between utilising 3D and regular anatomical models.3D printing is very appealing for producing patient-specific *** literature review-based paper explores the role of 3D printing and 3D bioprinting in *** briefs the need and progressive steps for implementing 3D printing in healthcare and presented various facilities and enablers of 3D printing for the healthcare ***,this paper identifies and discusses the significant applications of 3D printing for healthcare research and development.3D printing services can be deployed to easily construct complex geometries in plastic or metal with good *** results in improved prototypes,lower costs,and lower part processing *** can now physically create with natural materials,previously unattainable with prior *** hospital should have 3D printers in the future,allowing new organs/parts to be developed in-house.

关键词： 3D printing Healthcare Medical Research Development

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Applications of nanotechnology in medical field: a brief review

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Global Health Journal 2023年第2期7卷 70-77页

作者： Abid Haleem Mohd Javaid ravi Pratap Singh Shanay Rab Rajiv Suman Department of Mechanical Engineering Jamia Millia IslamiaNew DelhiIndia Department of Mechanical Engineering National Institute of TechnologyKurukshetraHaryanaIndia School of Architecture Technology and EngineeringUniversity of BrightonUnited Kingdom Department of Industrial and Production Engineering G.B.Pant University of Agriculture & TechnologyPantnagarUttarakhandIndia

Nanotechnology has extensive application as nanomedicine in the medical *** nanoparticles have possible applications in novel diagnostic instruments,imagery and methodologies,targeted medicinal products,pharmaceutical products,biomedical implants,and tissue *** treatments of high toxicity can be administered with improved safety using nanotechnology,such as chemotherapeutic cancer ***,wearable gadgets can detect crucial changes in vital signs,cancer cell conditions,and infections that are genuinely happening in the *** anticipate these technologies to provide doctors with considerably much better direct access to critical data on the reasons for changes in the signs of life or illness because of the technological presence at the source of the *** can be utilised for therapies with predictive analytics and artificial *** carrying out this study,relevant papers on Nanotechnology in the medical field from Scopus,Google scholar,ResearchGate,and other research platforms are identified and *** study discusses different types of Nanoparticles used in the medical *** paper discusses nanotechnology applications in the medical *** class,features,and characteristics of Nanotechnology for medicine are also ***,governments,civil society organisations,and the general public will need to collaborate across sectors to assess the significance of nanotechnology and guide its advancement in various *** current research includes several possible Nanotechnology uses in the medical *** a result,the study provides a brief and well-organised report on nanotechnology that should be valuable to researchers,engineers,and scientists for future research projects.

关键词： Nanotechnology Nanomedicine Nanoparticles Medical Treatment

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Blockchain technology applications for Industry 4.0:A literature-based review

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Blockchain(Research and Applications) 2021年第4期2卷 1-11页

作者： Mohd Javaid Abid Haleem ravi Pratap Singh Shahbaz Khan Rajiv Suman Department of Mechanical Engineering Jamia Millia IslamiaNew Delhi110025India Department of Industrial and Production Engineering Dr B R Ambedkar National Institute of TechnologyJalandharPunjab144011India Institute of Business Management GLA UniversityMathuraUttar Pradesh281406India Department of Industrial&Production Engineering Govind Ballabh Pant University of Agriculture&TechnologyPantnagarUttarakhand263145India

Industry 4.0 involves innovations with upcoming digital technologies,and blockchain is one of *** can be incorporated to improve security,privacy,and data transparency both for small and large *** 4.0 is a synthesis of the new production methods that allow manufacturers to achieve their target more *** has been conducted on various Industry 4.0 technologies like Artificial Intelligence(AI),Internet of Things(IoT),Big data,and Blockchain,and how they could create significant interruptions in recent *** technologies provide various possibilities in the world of manufacturing and supply *** is a technology that has gained much recognition and can enhance the manufacturing and supply chain *** fields now have fascinating insights into the advantages of *** research articles on“Blockchain”and“Industry 4.0”from Google Scholar,Scopus,and other relevant sources are identified and reviewed for this *** paper discusses the major potential of Blockchain in Industry *** drivers,enablers,and associated capabilities of Blockchain technology for Industry 4.0 are discussed for *** Industry 4.0 spheres/sub-domains for Blockchain technology realisation are also ***,we have identified and studied fourteen significant applications of Blockchain in Industry *** is a range of new developments and hope for immense opportunities that are changing Industry *** technology would work to achieve amplified outcomes and work individually to enhance the process.

关键词： Blockchain Industry 4.0 Information Data storage Manufacturing

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质量4.0技术有助提升中医药在新冠肺炎期间应对医疗保健挑战

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Digital Chinese Medicine 2021年第2期4卷 71-80页

作者： Abid Haleem Mohd Javaid ravi Pratap Singh Rajiv Suman Department of Mechanical Engineering Jamia Millia IslamiaNew Delhi 110025India Department of Industrial and Production Engineering Dr B R Ambedkar National Institute of TechnologyJalandharPunjab 144011India Department of Industrial&Production Engineering G.B.Pant University of Agriculture and TechnologyPantnagarUttarakhand 263153India

质量4.0的概念源自第四次工业革命,即工业4.0。质量4.0是质量的未来,新兴数字化和颠覆性技术被用来保持组织的质量,其同样适合保持中医药的质量。这场质量革命目的在于通过整合新兴技术将物理系统与自然界联系起来,从而提高工业和服务... 详细信息

质量4.0的概念源自第四次工业革命,即工业4.0。质量4.0是质量的未来,新兴数字化和颠覆性技术被用来保持组织的质量,其同样适合保持中医药的质量。这场质量革命目的在于通过整合新兴技术将物理系统与自然界联系起来,从而提高工业和服务部门的质量。所提出的数字化理念可以革新和增强整个中医药治疗方法论,使其在目前制药和临床行业的竞争结构中变得更加有效且更具吸引力。因而,在医疗保健领域,这场革命在新冠肺炎大流行期间可提升治疗质量。在大流行期间,医疗保健领域的一个基本要求是保持医疗工具、设备及治疗过程的质量。数字技术可以广泛用于为中医药提供高质量的创新产品和服务。在本文中,我们探讨了质量4.0的重要作用,以及如何在大流行期间用它来保持医疗保健的质量及应对挑战。同时,我们讨论了新冠肺炎大流行期间质量4.0在医疗保健领域的主要应用。这些技术将为在整个治疗过程中保持中医药质量提供独特的优势。借助质量4.0,可以应用创新和先进的数字技术来保证质量。

关键词：质量4.0 新型冠状病毒肺炎数字医疗保健中医药工业4.0 质量革命

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Konno Procedure for Managing Small Aortic Root during Aortic Valve Replacement Surgery: An Experience of 12 Cases

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World Journal of Cardiovascular Surgery 2020年第2期10卷 24-31页

作者： Ankit Maheshwari ravi Gupta Debmalya Saha Sayyed Ehtesham Hussain Naqvi Harpreet Singh Minhas Muhammad Abid Geelani Department of CTVS Govind Ballabh Pant Institute of Postgraduate Medical Education & Research Delhi India

Background: Small aortic annulus during aortic valve replacement can lead to implanting a smaller sized valve compared to the body surface area thereby causing patient prosthesis mismatch. Various aortic root enlargement techniques have been described depending on anterior or posterior approach. Konno procedure uses anterior approach for aortic root enlargement. In this study, we reviewed results of Konno procedure done from 2011 to 2019 by a single surgeon. Methods: 12 adult patients who underwent aortic valve replacement along with Konno procedure for small aortic root by a single surgeon at a single center between 2011 and 2019 were reviewed. Echocardiographic and demographic data and post-operative data were obtained from medical records. Symptomatic profile was assessed as per New York Heart Association Classification. Intraoperative findings and post-operative period findings were noted. Follow up symptom profile was assessed for these patients. Results: 12 patients underwent Konno procedure between 2011 and 2019 for small aortic root along with valve replacement. The main indication for surgery was aortic stenosis with small aortic annulus, with or without involvement of the mitral valve. Preoperatively, 3 patients had NYHA class II and 9 patients had NYHA class III symptoms. Mean age at operation was 26.42 years, minimum age 10 years, and maximum age 39 years. 3 were females and 9 were males. Mean bypass time was 106.4 minutes and aortic cross clamp time was 80.67 minutes. Mechanical aortic valves were implanted in all patients. Mean post-operative blood loss was 134.2 ml and duration of ventilation before extubation was 14.5 hours. Mean duration of intensive care unit (ICU) stay was 2.83 days and hospital stay was 9.1 days. Mean gradient in the post-operative period was 10.75 mm Hg. There was no mortality in these 12 patients and no reoperation was needed in the follow up period. Follow up in the outpatient department suggested all patients had NYHA class I

关键词： Konno Operation Aortic Root Enlargement Aortic Valve Replacement Small Aortic Root Patient Prosthesis Mismatch

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