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| 1 | Modeling Superhydrophobic Contact Angles and Wetting Transition显示文摘It is well known that surface roughness has a very important effect on superhydrophobicity.The Wenzel and Cassie-Baxtermodels,which correspond to the homogeneous and heterogeneous wetting respectively,are currently primary instructions fordesigning superhydrophobic surfaces.However,the particular drop shape that a drop exhibits might depend on how it is formed.A water drop can occupy multiple equilibrium states,which relate to different local minimal energy.In some cases,both equilibriumstates can even co-exist on a same substrate.Thus the apparent contact angles may vary and have different values.Wediscuss how the Wenzel and Cassie-Baxter equations determine the homogeneous and heterogeneous wetting theoretically.Contact angle analysis on hierarchical surface structure and contact angle hysteresis has been put specific attention.In particular,we study the energy barrier of transition from Cassie-Baxter state to Wenzel state,based on existing achievement by previousresearchers,to determine the possibility of the transition and how it can be interpreted.It has been demonstrated that surfaceroughness and geometry will influence the energy required for a drop to get into equilibrium,no matter it is homogeneous orheterogeneous wetting. | Nan Gao, Yuying YanDBE, Faculty of Engineering, University of Nottingham, NGl 2RD, UK | 2009 | Journal of Bionic Engineering2009，6，4： | 9 |
| 2 | Wetting Behaviours of a Single Droplet on Biomimetic Micro Structured Surfaces显示文摘Natural surfaces with super hydrophobic properties often have micro or hierarchical structures.In this paper, the wettingbehaviours of a single droplet on biomimetic micro structured surfaces with different roughness parameters are investigated.Atheoretical model is proposed to study wetting transitions.The results of theoretical analysis are compared with those of experimentindicating that the proposed model can effectively predict the wetting transition.Furthermore, a numerical simulationbased on the meso scale Lattice Boltzmann Method (LBM) is performed to study dynamic contact angles, contact lines, andlocal velocity fields for the case that a droplet displays on the micro structured surface.A spherical water droplet with rs= 15 μmfalls down to a biomimetic square-post patterned surface under the force of gravity with an initial velocity of 0.01 m·s-1 and aninitial vertical distance of 20 μm from droplet centre to the top of pots.In spite of a higher initial velocity, the droplet can stillstay in a Cassie state; moreover, it reaches an equilibrium state at t≈17.5 ms, when contact angle is 153.16° which is slightlylower than the prediction of Cassie-Baxter’s equation which gives θCB=154.40°. | Y.Q.Zu~1,Y.Y.Yan~1,J.Q.Li~2,Z.W.Han~2 1.Faculty of Engineering,University of Nottingham,Nottingham NG7 2RD,UK 2.Key Laboratory of Bionic Engineering (Ministry of Education,China),Jilin University,Changchun 130022,P.R.China | 2010 | Journal of Bionic Engineering2010，7，2： | 8 |
| 3 | Business Intelligence as a Service——SaaS BI Introduction and Recommendations显示文摘Characterized as automated access,analysis,management,improvement,identification,and efficiency,SaaS BI has played a significant role recently. This essay presents information about SaaS BI,such as,the generic reason for prevalent,advantages and limitations of SaaS BI,current market overview,tendency of development of SaaS BI,and applications in business. This paper uses the literature study and descriptive study methods in order to analysis the influence and functions of SaaS BI to the businesses and coping strategies. | Zhang Yang,Huang Yulong (University of Nottingham Ningbo,Ningbo 315100,China) | 2010 | 电信科学2010，26，S1： | 7 |
| 4 | EFFECTIVE DISCHARGE CALCULATION GUIDE显示文摘This paper presents a procedure for calculating the effective discharge for rivers with alluvial channels. An alluvial river adjusts the bankfull shape and dimensions of its channel to the wide range of flows that mobilize the boundary sediments. It has been shown that time-averaged river morphology is adjusted to the flow that, over a prolonged period, transports most sediment. This is termed the effective discharge. The effective discharge mayo be calculated provided that the necessary data are available or can be synthesized. The procedure for effective discharge calculation presented here is designed to have general applicability, have the capability to be applied consistently, and represent the effects of physical processes responsible for determining the channel. dimensions. An example of the calculations necessary and applications of the effective discharge concept are presented. | D. S. BIEDENHARN,C. R. THORNE, P.J.SOAR. ,R.D.HEY, and C. C. WATSONS 1 Engineer, U.S. Army Corps of Engineers, Waterways Experiment Station, Vicksburg, MS 39180, USA. 2Professor School of Geography, University of Nottingham, Nottingham NG7 2RD, UK. 3 Prof | 2001 | International Journal of Sediment Research2001，16，4： | 5 |
| 5 | Mesh theory of angle modified dual tori double-enveloping toroidal worm drive显示文摘In this paper, the meshing theory of the angle modified hourglass worm drive is enriched and developed. The ordinary condition of the angle modification is derived and the physical significance of the modification is interpreted. A normal section methodology is proposed for meshing analysis, which can be used to compute the normal distance near a singular meshing point of a conjugate surface couple. By means of the method and after analyzing the normal transversals, it is specified that the worm helicoid, the nominal former contact zone and the new contact zone intersect each other along the locus of singular points of the instantaneous contact lines of an angle-modified worm pair. As a result, it is explained clearly that those three osculate each other but the osculations are different in degree. Moreover, the mechanism of removing the twice-contacted zone from the worm gear tooth surface is clarified and the reason of shortening the worm working length is also elucidated. With the help of the theory described in the present paper and the thorough and systematic research on the relevant meshing characteristics, the angle modified dual tori double-enveloping toroidal worm drive has been shown to be an excellent new-fashioned hourglass worm set. | ZHAO YaPing1, SU DaiZhong2, ZHANG Zhao1, WEI WenJun3 & DONG XueZhu3 1 College of Machinery and Automation, Wuhan University of Science and Technology, Wuhan 430081, China 2 Advanced Design and Manufacturing Engineering Center, Nottingham Trent University, Nottingham NG1 4BU, UK 3 College of Engineering, China Agricultural University, Beijing 100083, China | 2010 | Science China(Technological Sciences)2010，53，7： | 4 |
| 6 | Formation of Intermetallic Compound in Iron-Aluminum Alloys显示文摘Aluminum AlloysTX1IntroductionFe-Alintermetalicshavegreatpotentialitiesforstructuralapplicationsowingtotheirgoodmechanicalprop... | Wang Xingqing(Shanghai University)Sui Yongjiang(Shanghai University) Wood J.V.(University of Nottingham,UK)Lu Haibo(Central South University of Technology) | 1998 | Advances in Manufacturing1998，，4： | 3 |
| 7 | Computer simulation of rolling wear on bionic non-smooth convex surfaces显示文摘The study of bionics has found that the skins of many burrow animals which live in soil and stone conditions have an anti wear function, and which is related to their body surfaces’non-smooth morphology. In the present study, bionic non-smooth surfaces are used in roll surface design, and roll models with convex non-smooth surfaces are developed. The rolling wear of non-smooth roll in steel rolling is simulated by the FEM software-ANSYS. The equivalent stress, the node friction stress, and the node contact pressure between the roll and the rolling piece are calculated; and the anti-wear mechanism is analyzed. | HAN Zhi-wu1, LIUZu-bin2, YANG Zhuo-juan1, YAN Yu-ying3, REN Lu-quan1 1. Key Laboratory for Terrain-machine Bionics Engineering (Ministry of Education, China), Jilin University, Changchun 130022, P. R. China 2. Changchun Institute of Automobile, Changchun 130051, P. R. China 3. School of the Built Environment, The University of Nottingham, University Park, Nottingham NG7 2RD, UK 1 | 2004 | Journal of Bionic Engineering2004，1，4： | 2 |
| 8 | Simulation of the Influence of Surface Wettability on Viscous Fingering Phenomenon in Porous Media显示文摘Fingering phenomena are common occurrence in the natural world. It generally takes place when a less viscous fluid displacesa more viscous fluid typically in porous media. Nowadays, such phenomena have extensively been studied due to itsimportance in many industrial fields. In this paper, the effects of surface wettability on finger pattern are studied and simulatednumerically by the Lattice Boltzmann method (LBM). The displacement efficiency is investigated by using two parameters,namely, the breakthrough time and the areal sweep efficiency. The simulation has demonstrated that surface wettability willinfluence the finger pattern no matter the gravity is considered or not, but in the presence of gravity, the finger pattern is muchmore complicated and irregular due to the coexistence and competition of capillary force, viscous force and gravity. | B. Dong~1, Y. Y. Yan~2, W. Z. Li~1, Y. C. Song~1 1. Key Laboratory of Ocean Energy Utilization and Energy Conservation (Ministry of Education, China), Dalian University of Technology, Dalian 116024, P. R. China 2. Faculty of Engineering, University of Nottingham, University Park, NG7 2RD, UK | 2010 | Journal of Bionic Engineering2010，7，3： | 2 |
| 9 | FK506 treatment inhibits caspase-3 activation and promotes oligodendroglial survival following traumatic spinal cord injury显示文摘 | Nottingham S Knapp P Springer J | 2002 | Exp Neurol2002，177，1： | 1 |
| 10 | Caspase-3 apoptotic signaling following injury to the central nervous system 显示文摘 | Springer JE Nottingham SA McEwen ML | 2001 | Clin Chem Lab Med2001，39，4： | 1 |
| 11 | Competitive exclusion of salmonella using bacterial cultures and oligosaccharides显示文摘 | Lyons T P Jacques K A Nottingham A | 1995 | Biotecnology1995，16，38： | 1 |
| 12 | Choledocholithiasis in the laparoscopic era显示文摘 | Boughey JC Nottingham MJ | 2003 | Current Surg2003，60，2： | 1 |
| 13 | Cost -effec- tiveness of screening for colorectal cancer: evidence from the Nottingham faecal occult blood trial显示文摘 | Whynes DK Nottingham FOB Screening Trial | 2004 | J Med Screen2004，11，1： | 1 |
| 14 | Laparoscopic rpair of large incisional hernias 显示文摘 | Parker HH Nottingham JM Bynoe RP | 2002 | Am Surg2002，68，6： | 1 |
| 15 | Integrated Risk Management 显示文摘 | Nottingham L | 2002 | The Canadian Business Review2002，，6： | 1 |
| 16 | Calcineurin-mediated BAD dephosphorylation activates the caspase-3 apoptotic cascade in traumatic spinal cord injury 显示文摘 | Springer JE Azbill RD Nottingham SA | 2000 | J Neurosci2000，20，： | 1 |
| 17 | Food andwater economy and its relation to growth in fifth instarlarvae of tobacco homworm, Manduca sexta显示文摘 | Reynolds S E Nottingham S F Stephens A E | 1985 | Journalof Insect Physiology1985，31，： | 1 |
| 18 | Caspase-3 apoptotic sig naling following injury to the central nervous system显示文摘 | Springer JE Nottingham SA McEwen ML | 2001 | Clin Chem Lab Med2001，39，： | 1 |
| 19 | Richter's hernia in the laparoscopic era:four case reports and review of the literature显示文摘 | Boughey JC Nottingham JM Walls AC | 2003 | Surgical Laparoscopy Endoscopy and Percutaneous Techniques2003，，01： | 1 |
| 20 | Calcineurin-me-diated BAD dephosphorylation activates the caspase-3 apoptotic cascade in traumatic spinal cord injury显示文摘 | Springer JE Azbill RD Nottingham SA | 2000 | J Neuroscience2000，20，19： | 1 |
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