检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

吸入型糖皮质激素用于哮喘患者的效果研究

中国实用医药 2013年第29期8卷 10-12页

作者： Bhanu Siva Kumar Sileveru dinesh babu abbadasari Neelesh Taticherala 冯宇峰厦门大学医学院留学生361003 厦门大学附属第一医院

目的借助于哮喘控制测试(ACT),论证使用吸入型糖皮质激素作为控制哮喘患者病情的临床疗效,与未使用任何药物控制哮喘症状或疾病发作的患者进行数据比较。方法在2012年7月,总共60名哮喘患者被要求做ACT问卷,其中32名患者作为对照组(n=32... 详细信息

目的借助于哮喘控制测试(ACT),论证使用吸入型糖皮质激素作为控制哮喘患者病情的临床疗效,与未使用任何药物控制哮喘症状或疾病发作的患者进行数据比较。方法在2012年7月,总共60名哮喘患者被要求做ACT问卷,其中32名患者作为对照组(n=32)未使用任何控制药物;28名患者作为观察组(n=28)使用吸入型糖皮质激素;并对两组的ACT结果进行了比较。结果所有患者都进行了ACT,并得到了相应的ACT分值。在对照组中,所有男性(n=13)患者的哮喘病情都控制不佳,19名女性中只有2名(10.53%)患者的病情得到了轻微的控制,其余的17名女性患者(89.47%)哮喘病情都控制不佳。在观察组中,男性患者(n=13)有6名(46.15%)患者哮喘病情未得到控制,女性患者(n=15)中,只有3名(20%)患者哮喘病情未得到控制。总体来说,ACT分值高于19的情况下,11名(39.29%)患者的哮喘得到了良好控制。结论使用吸入型糖皮质激素的哮喘控制物,例如倍氯米松和去炎松在维持哮喘的良好控制方面取得较好结果 ,ACT分值结果展示了这一点。使用吸入型糖皮质激素与未使用任何控制物相比,ACT分值得到了显著改变。

关键词：哮喘控制测试ACT 哮喘控制物吸入型糖皮质激素倍氯米松去炎松

Performance and Emission Characteristics of a CRDI Diesel Engine Fuelled by SiO_(2) Nanoparticle-Waste Fat Biodiesel Blends

在线全文

学校读者我要写书评

暂无评论

China Petroleum Processing & Petrochemical Technology 2024年第1期26卷 56-66页

作者： babu Aurtherson P dinesh babu Munuswamy Ravikumar Jayabal Yuvarajan Devarajan Department of Mechanical Engineering Mahat Amma Institute of Engineering and TechnologyPudukkottaiTamil NaduIndia Department of Mechanical Engineering Rajalakshmi Institute of TechnologyChennaiTamil NaduIndia Department of Thermal Engineering Saveetha School of EngineeringSaveetha Institute of Medical and Technical SciencesChennaiTamil NaduIndia

This study investigates the use of waste fat biodiesel(WFB)from the leather industry as a substitute for diesel ***,it examines the diesel engine performance of WFB,a blend of WFB and diesel(B50),and different blends of WFB and silicon dioxide(SiO_(2))nanoparticles(B50SiO_(2)40,B50SiO_(2)80,and B50SiO_(2)120μg/g).The results indicate that the B50SiO_(2)120 blend increases brake thermal efficiency by 10.03%compared to pure biodiesel but falls 1.93%short of neat ***,the B50SiO_(2)120 mixture reduces smoke,hydrocarbon,and carbon monoxide emissions by 31.87%,34.14%,and 43.97%respectively,compared to ***,the B50SiO_(2)120 blend shows a 4.91%increase in nitrogen oxide emissions compared to diesel.

关键词： waste fat transesterification biodiesel silicon dioxide emission

Brain Tumor Segmentation through Level Based Learning Model

在线全文

学校读者我要写书评

暂无评论

Computer Systems Science & Engineering 2023年第1期44卷 709-720页

作者： K.dinesh babu C.Senthil Singh Department of Electronics and Communication Engineering Adhi College of Engineering and Technology631605India Department of Electronics and Communication Engineering Infant Jesus College of EngineeringVallanaduThoothukudi628851India

Brain tumors are potentially fatal presence of cancer cells over a human brain,and they need to be segmented for accurate and reliable planning of *** process must be carried out in different regions based on which the stages of cancer can be accurately *** patients exhibit a different level of challenge in terms of cancer or tumors detection as the Magnetic Resonance Imaging(MRI)images possess varying sizes,shapes,positions,and *** scanner used for sensing the location of tumors cells will be sub-jected to additional protocols and measures for accuracy,in turn,increasing the time and affecting the performance of the entire *** this view,Convolutional Neural Networks deliver suitable models for efficient segmentation and thus delivered promising *** previous strategies and models failed to adhere to diversity of sizes and shapes,proving to be a well-established solution for detecting tumors of bigger *** tend to be smaller in size and shape during their premature stages and they can easily evade the algorithms of Convolutional Neural Network(CNN).This proposal intends to furnish a detailed model for sensing early stages of cancer and hence perform segmentation irrespective of the current size and shape of *** size of networks and layers will lead to a significant weightage when multiple kernel sizes are involved,especially in multi-resolution *** the other hand,the proposed model is designed with a novel approach including a dilated convolution and level-based learning *** the convolution process is dilated,the process of feature extraction deals with multiscale objective and level-based learning eliminates the shortcoming of previous models,thereby enhancing the quality of smaller tumors cells and *** level-based learning approach also encapsulates the feature recon-struction processes which highlights the sensing of small-scale tumors ***,segmenting t

关键词： Glioma detection segmentation smaller tumour growth machine learning feature analysis

Emission and performance study emulsi ed orange peel oil biodiesel in an aspirated research engine

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Petroleum Science 2019年第1期16卷 180-186页

作者： R.Siva dinesh babu Munuswamy Yuvarajan Devarajan Department of Mechanical Engineering Sathyabama Institute of Science and Technology Department of Mechanical Engineering Panimalar Engineering College Department of Mechanical Engineering Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and Technology

This study paves the way on reducing smoke emission and NO_x emissions of research diesel engine by detailing the e ect of water addition in biodiesel. Fuel samples were prepared with di erent concentrations of water in orange peel oil biodiesel(94% waste orange peel oil biodiesel + 4% water + 2% Span 80(WOPOBDE1) and 90% waste orange peel oil biodiesel + 8% water + 2% Span 80(WOPOBDE2). Span 80 was employed as a nonionic surfactant, which emulsifies water in biodiesel. Experimental results revealed that the nitrogen oxides and smoke emission of orange peel oil biodiesel emulsion were reduced by 11%–19% and 3%–21%, respectively, compared to that of neat orange peel oil biodiesel(WOPOBD). In addition, the introduction of orange peel oil–water emulsions in the diesel engine considerably reduced the emissions of unburned hydrocarbons and carbon monoxide. The overall hydrocarbon emission of WOPOBDE2 was 12.2% lower than that of WOPOBD and 16.3% lower than that of diesel. The overall CO emission of WOPOBDE2 was 17% lower than that of base fuel(WOPOBD) and 21.8% lower than that of diesel. Experimental results revealed that modified fuel had higher brake thermal e ciency and lower brake specific fuel consumption than that of base fuel at all engine brake power levels.

关键词： Orange peel biodiesel Diesel engine Water-biofuel emulsions Performance Emissions

Effect of Heat Sink and Cooling Mediums on Ferrite Austenite Ratio and Distortion in Laser Welding of Duplex Stainless Steel 2205

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Mechanical Engineering 2019年第3期32卷 209-217页

作者： P.dinesh babu P.Gouthaman P.Marimuthu School of Mechanical Engineering SASTRA Deemed UniversityThanjavur 613401TamilnaduIndia Management Development Centre Ashok LeylandMookandapalliHosurTamilnaduIndia

In order to control the ferrite and austenite percentage in duplex stainless steel welding, many researchers try to change the laser welding parameters and cooling medium, but ignore to study the influence of heat sink effect on weld strength. In this work, the effect of aluminium heat sink and varying cooling medium on the laser welding of duplex stainless steel (DSS) 2205 is studied. The 2 mm thick DSS sheets welded with pulsed Nd: YAG laser welding machine by varying the cooling medium (air and oil) and an aluminium plate used as a heat sink. The welded specimens tested for tensile strength, micro-hardness, distortion, microstructure and radiography analysis. The faster cooling rate in the oil quenching process enhances the ferrite percentage compared with air-cooled samples. But the faster cooling rate in oil quenching leads to more distortion and using aluminium as a heat sink influenced positively the distortion to a small extent. The lower cooling rate in air quenching leads to a higher tensile strength of the welded specimen. The objective of this work is to analyse experimentally the effect of cooling medium and heat sink in the mechanical and metallurgical properties of laser welded duplex stainless steel.

关键词： Laser welding Duplex stainless steels Heatsink Cooling medium Distortion Tensile strength Radiography test

Age of the earliest transgressive event in the Krishna-Godavari Basin, India: evidence from dinoflagellate cysts and planktonic foraminifera biostratigraphy

在线全文

学校读者我要写书评

暂无评论

Journal of Palaeogeography 2020年第1期9卷 60-70页

作者： Ashish Kumar Mishra Nallamuthu Malarkodi Arun Deo Singh dinesh babu Vandana Prasad Birbal Sahni Institute of Palaeosciences LucknowIndia Department of Geology Jnanabharathi CampusBangalore UniversityBengaluru 560056India Department of Geology Banaras Hindu UniversityVaranasi 221005India Oil India Limited KakinadaIndia.

A combined biostratigraphic study of dinoflagellate cysts and foraminifera was carried out on Early Cretaceous subsurface well cutting sediments from well A(DNG)(2800–2746 m depth)from the Krishna-Godavari Basin,*** last appearance datum of marker species of dinoflagellate cysts and planktonic foraminifera was considered for the construction of the biostratigraphic *** study shows dominance of Early Cretaceous marker dinoflagellate cysts Cassiculosphaeridia magna,Cribroperidinium perforans,Hystrichodinium voigtii,Kleithriasphaeridium eoinodes,and planktonic foraminifera Hedbergella aptiana,Hedbergella mitra,Hedbergella praelippa,Hedbergella tardita,Microhedbergella miniglobularis and Hedbergella mitra *** addition to this,the dinoflagellate cyst data were compared with the dinoflagellate biozones of Austral and Tethyan *** on earlier micropalaeontological records from the Krishna-Godavari Basin and the present study,a latest Barremian-early Aptian age has been determined for the earliest marine transgression in the Krishna-Godavari *** early marine incursion during late Barremian-earliest Aptian in the Krishna-Godavari Basin compared to Albian age in Cauvery Basin suggests the opening of east coast from north to south.

关键词： Biostratigraphy Krishna-Godavari Basin Palaeoenvironment

Design and development of self-cleaning PV sliding system

在线全文

学校读者我要写书评

暂无评论

Clean Energy 2022年第3期6卷 392-403页

作者： Vinay Gupta Madhu Sharma Rupendra Pachauri K N dinesh babu Department of Electrical Engineering Manipal University Jaipur-303007India School of Engineering University of Petroleum and Energy StudiesDehradun-248007India Megger Group Ltd MylaporeChennai-600004India

This study describes the designing steps of the proposed self-cleaning system for the photovoltaic(PV)system and experimentally investigates the effectiveness of the proposed self-cleaning PV sliding system for solar power plants under all Indian climate *** investigate the performance of the proposed self-cleaning PV sliding system,we used three PV panels of 20 W with a sliding structure and another set of three PV panels of 20 W with a traditional(fixed)technique,and recorded the output power for the period of December 2019 to April *** experimental results show that the proposed self-cleaning PV sliding system improved efficiency by 18.3%,13.3%and 6.4%,respectively,in the summer,winter and post-monsoon seasons when compared to the fixed PV *** results also revealed that energy consumption was very low when compared to the amount of energy *** proposed system not only cleans the PV system,but also protects it from *** results of this study show that there is a significant improvement in PV efficiency and thus an increase in electricity production under all climate conditions.

关键词： solar energy photovoltaics cleaning soiling hailstorm protection sliding PV system

Effect of laser textured surface with different patterns on tribological characteristics of bearing material AISI 52100

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Central South University 2020年第8期27卷 2210-2219页

作者： PAUL JOSHUA S dinesh babu P School of Mechanical Engineering SASTRA Deemed UniversityThanjavur 613401TamilnaduIndia

Chrome steels are used in bearings since they possess high strength and wear ***,when those parts are in service,failure happens due to sliding friction before the *** improve the durability of the American Iron and Steel Institute(AISI)52100 chromium steel,in this work,the effect of laser surface texturing(LST)was *** the different patterns of circle and ellipse comparing with the untextured samples,the wear behavior was investigated using the pin-on-disc *** lubricant used for wear analysis is semisolid lithium grease National Lubricating Grease Institute lubricant(SKF NLGI-3).Sliding wear analysis was conducted at different loads of 10 N,30 N and 50 N for the sliding speed of 750 r/min and 1400 r/*** wear morphology was analyzed using a scanning electron microscope(SEM).The roughness of the samples was found using a white light *** effect of different patterns like circle and ellipse,alter the friction and wear properties of chromium alloy was observed compared with the untextured *** shows considerable reduction in friction and wear for ellipsoidal pattern compared with the circular pattern because of wear debris and lubricant getting trapped.

关键词： laser surface micro texturing AISI52100 3D surface roughness wear scanning electron microscopy

ALK expression,prognostic significance,and its association with MYCN expression in MYCN non-amplified neuroblastoma

在线全文

学校读者我要写书评

暂无评论

World Journal of Pediatrics 2022年第4期18卷 285-293页

作者： dinesh babu Somasundaram Sheeja Aravindan Nandita Gupta Zhongxin Yu Ashley Baker Natarajan Aravindan Department of Radiation Oncology BMSB 311CRadiation Biology LaboratoryUniversity of Oklahoma Health Sciences Center940 Stanton L.Young BoulevardOklahoma CityOK 73104USA Stephenson Cancer Center Oklahoma CityOKUSA Plainsboro NJUSA Department of Pathology BMSB 311CRadiation Biology LaboratoryUniversity of Oklahoma Health Sciences Center940 Stanton L.Young BoulevardOklahoma CityOK 73104USA Department of Pediatrics University of Oklahoma Health Sciences CenterOklahoma CityOKUSA

Neuroblastoma(NB),the most common cancer at infancy,is derived from a selective sympathoadrenal lineage of the neural crest cells[1-3].The majority of NB is found in children younger than 5 years(median age:2 years)and is rare in children older than 10 *** NB accounts for only 5-6%of the childhood cancers,it heavily contributes(about 15%)to pediatric cancer deaths[4,5].

关键词： neuroblastoma MYCN cancer