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| 1 | 混凝土中的Lamb波传播显示文摘将 PZT压电陶瓷片直接粘贴在混凝土梁表面来产生和接收超声波 ,由该系统发射不同频率的超声脉冲 ,依据接收的时域波形测量幅值最大波包在混凝土内的传播时间 ,由此得到波速随频率变化的频散关系。通过比较理论的与实测的频散曲线 ,表明 PZT系统能在混凝土内产生某些模态的 L amb波。在 5 0~ 10 0 k Hz的频率范围内 ,混凝土中的L amb波模态接近于 A3模态。而在 110~ 16 0 k Hz的频率范围内 ,L amb波模态接近 S4 模态。 | 孙明清 Staszewski W J Swamy R N | 2004 | 武汉理工大学学报2004,26,1: | 6 |
| 2 | 压电陶瓷片用于检测混凝土的波速和动弹模显示文摘将 PZT压电陶瓷片直接粘贴在混凝土梁表面来产生和接收超声波 ,从接收的时域信号中能清晰分辨沿混凝土梁表面传播的纵波和 Rayleigh波 ,并以此确定 Rayleigh波和纵波在混凝土表面的传播时间和波速 ,再由 Rayleigh波和纵波波速计算混凝土的动弹性模量和动泊松比。PZT片产生的沿表面传播的纵波和 Rayleigh波用于混凝土内结构缺陷监测时 ,合适的频率范围分别为 12 0~ 2 0 0 k Hz和 5 0~ 110 k Hz,并且 Rayleigh波波速在 5 0~ 80 k Hz的频率范围内呈现出明显的频散特性 ,即波速随频率而变化。 | 孙明清 STASZEWSKIW J SWAMY R N | 2004 | 武汉理工大学学报2004,26,6: | 4 |
| 3 | Effect of Doppler spread in OFDM-based UWB systems 显示文摘 | CAPOGLU I R YE Li SWAMI A | 2005 | IEEE Trans on Commun2005,4,5: | 1 |
| 4 | A Theory for the Flexural Strength of Steel Fiber Reinforced Concrete显示文摘 | SWAMY R N MANGAT P S | 1974 | Cement and Concrete Research1974,,: | 1 |
| 5 | Switched bias proportional navigation for homing guidance against highly maneuvering target 显示文摘 | K R Babu J G Sarmah K N Swamy | 1994 | Journal of Guidance Control and Dynamics1994,17,6: | 1 |
| 6 | Importance of insoluble amylose as a determinant of rice quality显示文摘 | Bhattacharya K R Sowbhagya C M Swamy Y M I | 1978 | Journal of the Science of Food and Agriculture1978,29,: | 1 |
| 7 | Modeling and Analysis of Trust Management with Trust Chain Optimization in Mobile Ad Hoc Networks显示文摘 | Cho J H Swami A Chen I R | 2012 | Journal of Network and Computer Applications2012,35,3: | 1 |
| 8 | Ultrasonographic assessment of paediatric ocular emergencies: A tertiary eye hospital based observation显示文摘BACKGROUND: The purpose of this study is to assess the utility of ocular ultrasound B scan in the emergency at the fi rst point of care for detecting posterior segment and orbital pathologies in cases of paediatric ocular emergencies.METHODS: A prospective observational study involving 122 paediatric patients presenting to eye emergency over a period of ninety days were assessed with ultrasonography for the posterior segment as well as orbital pathology whenever indicated. The ocular ultrasound was performed gently over closed eyelids.RESULTS: Posttraumatic globe injuries were the most common indication for posterior segment evaluation, which constituted 80(65.57%) eyes. Among these 52 patients had an anechoic posterior segment and 28 patients had variable findings such as vitreous haemorrhage(8.19%), retinal detachment(6.55%), choroidal detachment(4.91%), posteriorly dislocated clear lens(0.81%) and retained intraocular foreign body(5.73%). Non-traumatic cases constituted around 42(34.42%) eyes, which included corneal ulcer(7.37%), retinoblastoma(6.55%), endophthalmitis(4.91%), extraocular muscle cysticercosis(4.91%), orbital cellulitis(4.09%), periocular haemorrhage(2.45%), proptosis(1.63%), paediatric cataract(1.63%) and cryptophthalmos(0.81%). No adverse events of performing the ultrasound was noted.CONCLUSION: First point ultrasonography in paediatric ocular emergencies is a cheap, portable and an effective tool in the assertion of signifi cant posterior segment and orbital diseases. | Amar Pujari Deepa R Swamy Rashmi Singh Ritika Mukhija Rohan Chawla Pradccp Sharma | 2018 | World Journal of Emergency Medicine2018,9,4: | 1 |
| 9 | Studies on some mixed ligand complexes of copped(Ⅱ)with 8-hydroxyquinoline and salicylic acids显示文摘 | Swamy Y Prabhakra R | 1985 | J Indian Chem Soc1985,,: | 1 |
| 10 | Estimation of diffusion coefficients for chloride ion penetration into structural concrete显示文摘 | SURYAVANSHI A K SWAMY R N CARDEW G E | 2002 | ACI Materials Journal2002,99,5: | 1 |
| 11 | An external surface coating to protect concrete and steel from aggressive environments 显示文摘 | SWAMY R TANIKAWA S | 1993 | Mater Struct1993,260,10: | 1 |
| 12 | Modeling and analysis of trust mana-gement with trust chain optimization in mobile Ad hoc networks显示文摘 | Cho J H Swami A Chen L R | 2012 | Journal of Network and Computer Applications2012,35,3: | 1 |
| 13 | A nonlinear adaptive filter for narrowband interference mitigation in spread spectrum systems 显示文摘 | DEERGHA R K SWAMY M N S PLOTKIN E I | 2005 | Signal Processing2005,85,: | 1 |
| 14 | Sacrococcygeal teratoma over two decades: birth prevalence, prenatal diagnosis and clinical out- comes显示文摘 | Swamy R Embleton N Hale J | 2008 | Prenat Diagn2008,28,11: | 1 |
| 15 | Thaumasite formationin Portland-limestone cement pastes 显示文摘 | HARTSHORN S A SHARP J H SWAMY R N | 1999 | Cem Concr Res1999,29,: | 1 |
| 16 | Esti- mation of diffusion coefficient for chloride ion penetration into structural concrete显示文摘 | SURYAVANSHI A K SWAMY R N CARDEW G E | 2002 | ACI Materials Journal2002,99,5: | 1 |
| 17 | Sulfate attack and role of sili- ca fume in resisting strength loss显示文摘 | LEE S T MOON H Y SWAMY R N | 2005 | Cement and Concrete Compos- ites2005,,27: | 1 |
| 18 | Structural behaviour of high strength concrete beams 显示文摘 | Swamy R N Anand K L | 1974 | Building Science1974,9,2: | 1 |
| 19 | Database mining: a performance perspective 显示文摘 | IMIELINSKI T SWAMI A | 1993 | IEEE Transactions on Knowledge and Data Engineering1993,5,6: | 1 |
| 20 | Strengthening for Shear of RC Beams by External Plate Bonding显示文摘 | Swamy R N | 1999 | Struct Eng1999,77,12: | 1 |