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Assessment of Traffic Noise Pollution in Burla Town,India;An InclusiveAnnoyance Study

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Sound & Vibration 2020年第1期54卷 27-42页

作者： a.k.sahu M.Pradhan C.R.Mohanty P.k.Pradhan department of mechanical engineering vssutburlaodisha768018india department of civil engineering pmecberhampurodisha761003india

Noise pollution is one of the major public health problems in urban areas throughout the *** is unwanted sound which produces undesirable problems in day to day life of human being(e.g.,physiological and psychological problems).Rapid increase of the industrialization,urbanization,infrastructure,volume of motor vehicles,and increase in the road networks brought noise pollution to the highest level of disaster in a current *** urban areas,road traffic noise plays commanding role among all noise sources and affects the exposed *** present work is done to evaluate and assess the traffic noise and its effects in Burla ***,Vidyanagari of Odisha,is an emerging town in India,as it hosts national level of teaching and research institutions like IIM Sambalpur,a medical college-cum-hospital(VIMSAR),a technical university(VSSUT)and Sambalpur *** last two decade,the road traffic volume has been increased and is facing severe noise pollution to its *** pollution assessment was made at different locations of the *** study unveiled the dismal state of noise pollution in the *** contour maps were drawn to visualize the noise level at the traffic and its *** numbers of hearing impaired patients in different hospitals of the locality are *** shows grim picture of the *** equations were established taking noise levels with percentage of highly annoyed people during study indicates strong correlation.

关键词： Equivalent continuous noise level traffic noise noise index noise climate noise standards annoyance

Dielectric and frequency-dependent transport properties of lanthanum-doped bismuth ferrite

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Journal of Advanced Dielectrics 2019年第4期9卷 38-46页

作者： a.k.sahu S.k.Satpathy Banarji Behera School of Physics Sambalpur UniversityJyotiVihar Burla 768019OdishaIndia Centurion University of Technology and Management Odisha India

Polycrystalline samples of Bi_(1-x)La_(x)FeO_(3)[x=0.5,0.6,0.7 and 0.8]were synthesized through high temperature solid state reaction *** structural studies of the compounds were done using X-ray diffraction *** constant and dielectric loss were studied for various frequencies(100 Hz–10^(4)Hz)at different *** temperature-dependent non-Debye type relaxation process was suggested in the materials from the analysis of frequency-dependent electrical data at different *** dependence of dc and ac conductivity at various frequencies showed negative temperature coefficient of resistance(NTCR)*** frequency dependence of ac conductivity at different temperatures obeyed Jonscher’s universal power *** temperature dependence of dc and ac conductivity was fitted to Arrhenius *** activation energies at different temperature ranges were calculated to know the charge species involved in the conduction process.

关键词： Solid state reaction XRD impedance electrical conductivity

Design of Power System Stabilizer for DFIG-based Wind Energy Integrated Power Systems Under Combined Influence of PLL and Virtual Inertia Controller

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Journal of Modern Power Systems and Clean Energy 2024年第2期12卷 524-534页

作者： Balakrushna sahu Bibhu Prasad Padhy Department of Electrical Engineering Indian Institute of Technology RoparPunjab140001India

Wind energy systems (WESs) based on doubly-fed induction generators (DFIGs) have enormous potential for meeting the future demands related to clean energy. Due to the low inertia and intermittency of power injection, a WES is equipped with a virtual inertial controller (VIC) to support the system during a frequency deviation event. The frequency deviation measured by a phase locked loop (PLL) installed on a point of common coupling (PCC) bus is the input signal to the VIC. However, a VIC with an improper inertial gain could deteriorate the damping of the power system, which may lead to instability. To address this issue, a mathematical formulation for calculating the synchronizing and damping torque coefficients of a WES-integrated single-machine infinite bus (SMIB) system while considering PLL and VIC dynamics is proposed in this paper. In addition, a power system stabilizer (PSS) is designed for wind energy integrated power systems to enhance electromechanical oscillation damping. A small-signal stability assessment is performed using the infinite bus connected to a synchronous generator of higher-order dynamics integrated with a VIC-equipped WES. Finally, the performance and robustness of the proposed PSS is demonstrated through time-domain simulation in SMIB and nine-bus test systems integrated with WES under several case studies.

关键词： Doubly-fed induction generator(DFIG) virtual inertia controller(VIC) phase locked loop(PLL) small-signal analysis synchronizing/damping torque synchronous generator power system stabilizer(PSS)

Fuzzy inference system using genetic algorithm and pattern search for predicting roof fall rate in underground coal mines

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International Journal of Coal Science & Technology 2024年第1期11卷 31-41页

作者： Ayush sahu Satish Sinha Haider Banka Department of CSE IIT(ISM)DhanbadJharkhand826004India Department of Sustainability Adani universityAhmedabadGujrat382421India

One of the most dangerous safety hazard in underground coal mines is roof falls during retreat *** falls may cause life-threatening and non-fatal injuries to miners and impede mining and transportation *** a result,a reliable roof fall prediction model is essential to tackle such *** parameters that substantially impact roof falls are ill-defined and intangible,making this an uncertain and challenging research *** National Institute for Occupational Safety and Health assembled a national database of roof performance from 37 coal mines to explore the factors contributing to roof *** acquired for 37 mines is limited due to several restrictions,which increased the likelihood of *** logic is a technique for coping with ambiguity,incompleteness,and ***,In this paper,the fuzzy inference method is presented,which employs a genetic algorithm to create fuzzy rules based on 109 records of roof fall data and pattern search to refine the membership functions of *** performance of the deployed model is evaluated using statistical measures such as the Root-Mean-Square Error,Mean-Absolute-Error,and coefficient of determination(R_(2)).Based on these criteria,the suggested model outperforms the existing models to precisely predict roof fall rates using fewer fuzzy rules.

关键词： Underground coal mining Roof fall Fuzzy logic Genetic algorithm

Maize gets an iron boost:Biofortification breakthrough holds promise to combat iron deficiency

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Journal of Integrative Plant Biology 2024年第4期66卷 635-637页

作者： Sunil kumar sahu State key Laboratory of Agricultural Genomics Key Laboratory of GenomicsMinistry of AgricultureBGI ResearchShenzhen 518083China BGI Research Wuhan 430074China

Micronutrient deficiencies affect more than two billion people worldwide,resulting in poor health,developmental issues,and even *** deficiency is one of the most prevalent micronutrient deficiencies worldwide and impa... 详细信息

关键词： population breakthrough holds

Guardians of the fragrance:Uncovering the genetics behind citrus oil glands

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Plant Communications 2024年第5期5卷 97-99页

作者： Sunil kumar sahu Muhammad Imran State key Laboratory of Agricultural Genomics Key Laboratory of GenomicsMinistry of AgricultureBGI ResearchShenzhen 518083China BGI Research Wuhan 430074China State key Laboratory for Conservation and Utilization of Subtropical AgroBioresources College of AgricultureSouth China Agriculture UniversityGuangzhou 510642China Center for Plant Biology School of Life SciencesTsinghua UniversityBeijing 100084China

The colorful,nutrient-rich peels of citrus fruits have long been valued for their tangy flavors and aromatic *** oils are produced and stored in special secretory structures called oil glands,which are prevalent across citrus varieties(knight et al.,2001).Oil glands serve as"reservoirs"for diverse metabolites such as terpenes and flavonoids that give citrus fruits their characteristic aroma(Mahato et al.,2019;Voo et al.,2012;Xian et al.,2022).Many of these compounds also act as chemical defenses against pest and pathogens(Fisher and Phillips,2008).

关键词： citrus Guard reservoirs

Twin studies as an innovative approach to address research questions in cancer care within primary care settings

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Family Medicine and Community Health 2024年第S2期12卷 58-62页

作者： Monalisha sahu Department of Occupational Health All India Institute of Hygiene and Public HealthKolkataIndia Department of Preventive&Social Medicine All India Institute of Hygiene and Public HealthKolkataIndia

This paper proposes the utilisation of twin studies as a novel and powerful methodological approach to investigate critical research questions pertaining to cancer prevention,screening,diagnosis,treatment and survivorship within primary care *** inherent genetic similarity between monozygotic(MZ)(identical)twins provides a unique opportunity to disentangle genetic and environmental influences on cancer-related *** twins share virtually identical genetic makeup,offering a unique opportunity to discern the relative contributions of genetic and environmental factors to cancer-related *** contrast,dizygotic(DZ)twins,also known as fraternal twins,develop from two separate eggs fertilised by two different sperm and share on average 50%of their genetic material,the same level of genetic similarity found in non-twin *** between MZ and DZ twins enable researchers to disentangle hereditary factors from shared environmental *** methodology has the potential to advance our understanding of the multifaceted interplay between genetic predisposition,lifestyle factors and healthcare interventions in the context of cancer *** paper outlines the rationale,design considerations and potential applications of twin studies in primary care-based cancer research.

关键词： prevention identical similarity

Multidisciplinary approach toward enhanced recovery after surgery for total knee arthroplasty improves outcomes

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World Journal of Clinical Cases 2024年第9期12卷 1549-1554页

作者： Deb Sanjay Nag Amlan Swain Seelora sahu Ayaskant Sahoo Gunjan Wadhwa Department of Anaesthesiology Tata Main HospitalJamshedpur 831001India Department of Anaesthesiology Manipal Tata Medical CollegeJamshedpur 831001India

knee osteoarthritis is a degenerative disorder of the knee,which leads to joint pain,stiffness,and inactivity and significantly affects the quality of *** an increased prevalence of obesity and greater life expectancies,total knee arthroplasty(TkA)is now one of the major arthroplasty surgeries performed for knee *** enhanced recovery after surgery(ERAS)was introduced in TkA,clinical outcomes were enhanced and the economic burden on the healthcare system was *** is an evidence-based scientific protocol aimed at ameliorating the surgical stress *** aims to enhance the recovery phase,which encompasses multidisciplinary strategies at every step of perioperative care,including the rehabilitation *** of ERAS in TkA aids in reducing the length of hospital stay,improving pain management,reducing perioperative complications,and enhancing patient *** collaboration,integrating the expertise of anesthesiologists,orthopedic surgeons,nursing personnel,and other healthcare professionals,is the cornerstone of ERAS in patients undergoing TkA.

关键词： Arthroplasty Replacement knee Recovery of function Anesthesia Care Nursing

Spatiotemporal dynamics of land use/land cover(LULC)changes and its impact on land surface temperature:A case study in New Town kolkata,eastern India

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Regional Sustainability 2024年第2期5卷 26-48页

作者： Bubun MAHATA Siba Sankar sahu Archishman SARDAR Laxmikanta RANA Mukul MAITY Department of Geography Ravenshaw UniversityCuttack753003India Department of Geography Sri Krushna Chandra Gajapati(Autonomous)CollegeParalakhemundi761200India

Rapid urbanization creates complexity,results in dynamic changes in land and environment,and influences the land surface temperature(LST)in fast-developing *** this study,we examined the impact of land use/land cover(LULC)changes on LST and determined the intensity of urban heat island(UHI)in New Town kolkata(a smart city),eastern India,from 1991 to 2021 at 10-a intervals using various series of Landsat multi-spectral and thermal *** study used the maximum likelihood algorithm for image classification and other methods like the correlation analysis and hotspot analysis(Getis–Ord Gi^(*) method)to examine the impact of LULC changes on urban thermal *** study noticed that the area percentage of built-up land increased rapidly from 21.91%to 45.63%during 1991–2021,with a maximum positive change in built-up land and a maximum negative change in sparse *** mean temperature significantly increased during the study period(1991–2021),from 16.31℃to 22.48℃in winter,29.18℃to 34.61℃in summer,and 19.18℃to 27.11℃in *** result showed that impervious surfaces contribute to higher LST,whereas vegetation helps decrease *** ecological status has been found in built-up land,and excellent ecological status has been found in vegetation and water *** hot spot and cold spot areas shifted their locations every decade due to random LULC *** after New Town kolkata became a smart city,high LST has been ***,this study indicated that urbanization and changes in LULC patterns can influence the urban thermal environment,and appropriate planning is needed to reduce *** study can help policy-makers create sustainable smart cities.

关键词： Urbanization Land use/land cover (LULC)changes Land surface temperature Urban heat island Hotspot analysis Smart city