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Dynamics of Submersible mussel Rafts in Waves and Current

China Ocean Engineering 2015年第3期29卷 431-444页

作者： WANG Xin-xin m.robinson swift Tobias DEWHURST Igor TSUKROV Barbaros CELIKKOL Carter NEWELL Center for Ocean Engineering and mechanical Engineering Department University of New Hampshire Laboratory of Fisheries Engineering Fisheries College Ocean University of China Pemaquid mussel Farms

To investigate the dynamics of submersible mussel rafts, the finite element program Aqua-FETm, developed by the University of New Hampshire（UNH）, was applied to rafts moored at the surface and submerged. The submerged configuration is used to reduce wave forcing and to avoid contact with floating ice during winters in northern waters. Each raft consists of three pontoons connected by a grid framework. Rafts are intended to support densely spaced mussel ropes hung from the framework. When submerged, the pontoons are flooded, and the raft is held vertically by floats attached by lines. The computer models were developed in Aqua-FE？ to simulate the effects of waves and current. They were validated by comparison with wave tank results by use of a 1/10 scale raft physical model. Comparisons showed good agreement for the important heave（vertical） and pitch（rotational） motions, though there was a tendency towards conservative results for wave and current drag. Full-scale simulations of surface and submerged single raft and two rafts connected in tandem were performed. Submerged raft wave response was found to be reduced relative to that at the surface for both the single and two-raft configurations. In particular, the vertical motion of mussel rope connection points was significantly reduced by submergence, resulting in reduced potential for mussel drop-off. For example, the maximum vertical velocities of mussel rope attachment points in the submerged two raft case were 7%-20% of the corresponding velocities when at the surface.

关键词： mussel raft submersible mussel ropes finite element model waves and current storm response

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Design of Buoys for mounting Wind Turbines at Exposed Sites

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Journal of Ocean University of China 2018年第2期17卷 257-266页

作者： ERDOGAN Beytullah CELIKKOL Barbaros swift robinson Department of mechanical Engineering Bülent Ecevit UniversityZonguldak 67200Turkey Department of mechanical Engineering University of New HampshireDurhamNH 03824USA

In this study, two designs for a buoy capable of supporting a 10 kW wind turbine and its tower were developed to operate at the University of New Hampshire's Center of Ocean Renewable Energy testing site located off the Isles of Shoals, New Hampshire. The buoys are to be moored by a catenary chain system. To evaluate wave response, two Froude-scaled models were constructed, tested, and compared at the Ocean Engineering wave tank at the University of New Hampshire. These buoys have been implemented and compared with wave tank measurements of the spar displacement at a reference elevation 2.44 m above the mean water level.

关键词： wind energy ocean wave buoy

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First-principles calculations of hyperfine interaction,binding energy,and quadrupole coupling for shallow donors in silicon

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npj Computational materials 2020年第1期6卷 186-194页

作者： michael W.swift Hartwin Peelaers Sai mu John J.L.morton Chris G.Van de Walle Department of Physics University of CaliforniaSanta BarbaraCA 93106-9530USA US Naval Research Laboratory Center for Computational Materials ScienceWashingtonDC 20375USA materials Department University of CaliforniaSanta BarbaraCA 93106-5050USA Department of Physics and Astronomy University of KansasLawrenceKansas 66045USA Department of Electronic and Electrical Engineering UCLLondonWC1E 7JEUK

Spin qubits based on shallow donors in silicon are a promising quantum information technology with enormous potential scalability due to the existence of robust silicon-processing ***,the most accurate theories of donor electronic structure lack predictive power because of their reliance on empirical fitting parameters,while predictive ab initio methods have so far been lacking in accuracy due to size of the donor wavefunction compared to typical simulation *** show that density functional theory with hybrid and traditional functionals working in tandem can bridge this *** first-principles approach allows remarkable accuracy in binding energies(67 meV for bismuth and 54 meV for arsenic)without the use of empirical *** also obtain reasonable hyperfine parameters(1263 mHz for Bi and 133 mHz for As)and superhyperfine *** demonstrate the importance of a predictive model by showing that hydrostatic strain has much larger effect on the hyperfine structure than predicted by effective mass theory,and by elucidating the underlying mechanisms through symmetry analysis of the shallow donor charge density.

关键词： density donor hyperfine

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枯落物的周转系数——枯落物分解作用与营养元素动态的一个重要指标

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湖南林业科技 1982年第3期 58-59页

作者： m.J.swift 齐之尧

枯落物周转系数(the Litter turnover Coefficient)是一个重要的生态系统常数,当进行枯落物分解作用与营养动态研究时,可用作衡量枯落物分解速率和营养元素迁移速率的指标。

关键词：枯落物分解现存量生物量凋落量周转系数

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格列佛游记ge lie fu you ji

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丛书名：每天读一点英文名著

2013年

作者： (英)Jonathan swift (美)malvina G. Vogel改写 (美)Pablo marcos插图王才凤

每天读一点英文名著（20本，英汉对照）美国圣智学习出版集团引进圣智学习出版集团面向学生群体出版的经典名剧改编本美国学生都在读的文学经典，与美国学生同步阅读面向学生的超值装，买一增一，买此系列图书一本，在此书... 详细信息

ISBN: (纸本)9787561178157

每天读一点英文名著（20本，英汉对照）美国圣智学习出版集团引进圣智学习出版集团面向学生群体出版的经典名剧改编本美国学生都在读的文学经典，与美国学生同步阅读面向学生的超值装，买一增一，买此系列图书一本，在此书的音频光盘中赠送同系列另外一本的电子书及全文音频。

关键词：英语长篇小说汉语

来源：畅想之星图书光盘版（南... 评论

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硫酸钙在两区反应器中的分解

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硫酸工业 1978年第S3期 95-101页

作者： W.m.swift ,T.D.Wheelock ,王海帆

采用一种具有两个反应区的试验性流化床反应器论证了分解硫酸钙的新方法。用天然气部份燃烧的还原区设在反应器的下部,而附加二次风的氧化区在其上部。在这样的系统中,固体通过自然循环交替地还原和氧化。温度范围在1910°F至2230°F时... 详细信息

采用一种具有两个反应区的试验性流化床反应器论证了分解硫酸钙的新方法。用天然气部份燃烧的还原区设在反应器的下部,而附加二次风的氧化区在其上部。在这样的系统中,固体通过自然循环交替地还原和氧化。温度范围在1910°F至2230°F时石膏和硬石膏连续地被分解,当温度达2100°F或更高时,固体脱硫率达98至99％,而当温度降低时,固体脱硫率

关键词：天然气还原区二次风混合气体氧化区生石膏硫酸盐硫酸钙

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X-ray imaging of 30 year old wine grape wood reveals cumulative impacts of rootstocks on scion secondary growth and Ravaz index

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Horticulture Research 2023年第1期10卷 31-44页

作者： Zoëmigicovsky michelle Y.Quigley Joey mullins Tahira Ali Joel F.swift Anita Rose Agasaveeran Joseph D.Dougherty Brendan michael Grant Ilayda Korkmaz maneesh Reddy malpeddi Emily L.mcNichol Andrew W.Sharp Jackie L.Harris Danielle R.Hopkins Lindsay m.Jordan misha T.Kwasniewski R.Keith Striegler Asia L.Dowtin Stephanie Stotts Peter Cousins Daniel H.Chitwood Plant Foodand Environmental SciencesFaculty of AgricultureDalhousie UniversityTruroNova ScotiaB2N 5E3Canada Department of Horticulture Michigan State UniversityEast LansingMI48823USA College of Natural Science Michigan State UniversityEast LansingMI48823USA Department of Neuroscience Michigan State UniversityEast LansingMI48823USA Department of Biology Saint Louis UniversitySt.LouisMO63103USA Department of Physics and Astronomy Michigan State UniversityEast LansingMI48823USA Department of Computational mathematics Science&EngineeringMichigan State UniversityEast LansingMI48823USA College of Engineering Michigan State UniversityEast LansingMI48823USA College of Social Science Michigan State UniversityEast LansingMI48823USA Department of Economics Michigan State UniversityEast LansingMI48823USA Department of Biochemistry and molecular Biology Michigan State UniversityEast LansingMI48823USA College of Arts and Letters Michigan State UniversityEast LansingMI48823USA E.&J.Gallo Winery AcampoCA95220USA Current affiliation:Constellation Brands SoledadCA93960USA Department of Food Science The Pennsylvania State UniversityState CollegePA16803USA Department of Forestry Michigan State UniversityEast LansingMI48823USA Department of Agriculture Foodand Resource SciencesUniversity of Maryland Eastern ShorePrincess AnneMD21853USA Department of Natural Sciences University of Maryland Eastern ShorePrincess AnneMD21853USA E.&J.Gallo Winery ModestoCA95354USA Department of Biology Acadia UniversityWolfvilleNova ScotiaB4P 2R6Canada

Annual rings from 30 year old vines in a California rootstock trial were measured to determine the effects of 15 different rootstocks on Chardonnay and Cabernet Sauvignon *** traits measuring vegetative growth,yield,berry quality,and nutrient uptake were collected at the beginning(1995 to 1999)and end(2017 to 2020)of the lifetime of a vineyard initially planted in 1991 and removed in 2021.X-ray Computed Tomography(CT)was used to measure ring widths in 103 *** width was modeled as a function of ring number using a negative exponential *** and late wood ring widths,cambium width,and scion trunk radius were correlated with 27 *** of annual ring width shows that scions alter the width of the first rings but that rootstocks alter the decay of later rings,consistently shortening ring width throughout the lifetime of the *** index,juice pH,photosynthetic assimilation and transpiration rates,and instantaneous water use efficiency are correlated with scion trunk ***,our research indicates that rootstocks modulate secondary growth over years,altering physiology and agronomic *** act in similar but distinct ways from climate to modulate ring width,which borrowing techniques from dendrochronology,can be used to monitor both genetic and environmental effects in woody perennial crop species.

关键词： rings lifetime removed

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冰魂我的谢尔盖第1版

冰魂我的谢尔盖

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1998年

作者：（美）叶卡捷琳娜·戈尔杰耶娃（Ekaterina Gordeeva）（美）E.m.斯威夫特（E.m.swift）韩颖译

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Free vibration and critical speed of moderately thick rotating laminated composite conical shell using generalized differential quadrature method

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Applied mathematics and mechanics(English Edition) 2013年第4期34卷 437-456页

作者： K.DANESHJOU m.TALEBITOOTI R.TALEBITOOTI School of mechanical Engineering Iran University of Science and Technology School of Automotive Engineering Iran University of Science and Technology

The generalized differential quadrature method （GDQm） is employed to con- sider the free vibration and critical speed of moderately thick rotating laminated compos- ite conical shells with different boundary conditions developed from the first-order shear deformation theory （FSDT）. The equations of motion are obtained applying Hamilton＇s concept, which contain the influence of the centrifugal force, the Coriolis acceleration, and the preliminary hoop stress. In addition, the axial load is applied to the conical shell as a ratio of the global critical buckling load. The governing partial differential equations are given in the expressions of five components of displacement related to the points ly- ing on the reference surface of the shell. Afterward, the governing differential equations are converted into a group of algebraic equations by using the GDQm. The outcomes are achieved considering the effects of stacking sequences, thickness of the shell, rotating velocities, half-vertex cone angle, and boundary conditions. Furthermore, the outcomes indicate that the rate of the convergence of frequencies is swift, and the numerical tech- nique is superior stable. Three comparisons between the selected outcomes and those of other research are accomplished, and excellent agreement is achieved.

关键词： generalized differential quadrature method (GDQm) natural frequency,rotating conical shell first-order shear deformation theory (FSDT) critical speed

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稳定性冠状动脉疾病患者的尿11-脱氢血栓素B_2与死亡率的关系

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中华高血压杂志 2017年第1期25卷 85-85页

作者：刘莉叶鹏 mcCullough PA Vasudevan A Sathyamoorthy m Schussler Jm Velasco CE Lopez LR swift C Peterson m Bennett-Firmin J Schiffmann R Bottiglieri T

已有研究证明，应用阿司匹林抗血小板治疗可减少冠状动脉疾病（coronary artery disease，CAD）患者的不良预后。阿司匹林不可逆地抑制血小板环加氧酶1（cyclooxygenase-1，COX-1）并减弱血栓烷A2（thromboxane A2，TXA2）介导的血小板... 详细信息

已有研究证明，应用阿司匹林抗血小板治疗可减少冠状动脉疾病（coronary artery disease，CAD）患者的不良预后。阿司匹林不可逆地抑制血小板环加氧酶1（cyclooxygenase-1，COX-1）并减弱血栓烷A2（thromboxane A2，TXA2）介导的血小板聚集，

关键词：冠状动脉疾病血栓素B2 患者死亡率稳定性脱氢抗血小板治疗 artery

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