|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Impact of Caudal Fin Shape on Thrust Production of a Thunniform Swimmer显示文摘Tuna,known for high endurance cruising,have already inspired several underwater robots and swimming studies.This study uses a biomimetic robotic tuna to investigate how different caudal fin planform geometries affect the thrust production and flow structures during Body and/or Caudal Fin(BCF)swimming.The robot was tethered to a circulating water tunnel,and swimming was simulated by moving water at a constant speed relative to the stationary robot.Three differently shaped caudal fins were tested,one rectangular,one elliptical,and one swept.Area,aspect ratio,and rigidity were kept constant between the three fins to ensure that the effect of caudal fin shape could be isolated.The fins were tested at three freestream velocities and four Strouhal numbers(St)so that comparisons between the fins could be made for a variety of swimming scenarios.The swept fin,which is the tested caudal fin most similar to one found on a fusiform swimmer,had the greatest thrust potential at high St,followed by the elliptical fin.The rectangular fin generally produced the least thrust.It was shown that in addition to producing the most thrust,the swept fin also best stabilized the leading edge vortex that developed during the second half of the stroke. | Alexander Matta Hodjat Pendar Francine Battaglia Javid Bayandor | 2020 | Journal of Bionic Engineering2020，17，2： | 2 |
| 2 | Comments to the: 'Closed-form dynamic equations of the general Stewart platform through the Newton-Euler approach' and 'A Newton-Euler formulation for the inverse dynamics of the Stewart platform manipulator'显示文摘 | Vakil M Pendar H | 2008 | Mechanism and Machine Theory2008，43，10： | 1 |
| 3 | Singularity anal-ysis of parallel manipulators using constraint plane method显示文摘 | PENDAR H MAHNAMA M Z0H00R H | 2011 | Mechanism and Machine Theory2011，1，46： | 1 |
| 4 | Surgical treatment of metastatic bone disease of the distal extremities显示文摘Metastatic bone disease of the distal extremities,also known as acrometastasis,is very rare.Thus,there is very limited information regarding the clinical manifestations and methods of surgical treatment.The current available literature shows that acrometastases are often encountered in the context of advanced disease and are thus associated with poor patient survival.As metastatic bone disease is generally uncurable,the goal of surgical treatment is to provide the patient with good function with as few complications as possible.In this article,we discuss the clinical manifestation of acrometastases,the methods of surgical intervention,and the expected clinical outcome.Non-surgically managed pathological fractures generally remain ununited;therefore,conservative treatment is reserved for patients with poor general condition or dismal prognosis.The current evidence suggests that in lesions of the lower arm and leg,osteosynthesis(plate and screw fixation or intramedullary nail)is the most common method of reconstruction,whereas local excision or amputation are more commonly used in cases of more distal lesions(such as ankle,foot and hand).Following surgery most patients receive adjuvant radiotherapy,even though its role is poorly documented.Close collaboration between orthopedic surgeons and medical oncologists is necessary to improve patient care and treatment outcome.Further studies are needed in order to provide stronger clinical evidence and improve decision-making,in an effort to optimize the patients’quality of life and avoid the need for revision surgery. | Jennifer Sebghati Pendar Khalili Panagiotis Tsagkozis | 2021 | World Journal of Orthopedics2021，12，10： | 1 |
| 5 | Experi- mental kinematic calibration of parallel manipulators using a relative position error measurement system 显示文摘 | ABTAHI M PENDAR H ALASTY A | 2010 | Robotics and Comuter-Integrated Manufacturing2010，26，： | 1 |
| 6 | Asssisted passive snake-like robots: Conception and dynamic modeling using Gibbs-Appell method显示文摘 | VOSSOUGHI G PENDAR H MOHAMMADI S | 2007 | Robotica2007，26，10： | 1 |
| 7 | The Health-Promoting lifestyle profile: development and psychometric characteristics 显示文摘 | Walker SN Secbrist KR Pendar NJ | 1987 | Nurs Res1987，36，2： | 1 |
| 8 | Singularity analysis of parallel manipulators using constraint plane method显示文摘 | PENDAR H MAHNAMA M ZOHOOR H | 2011 | Mechanism and Machine Theory2011，46，1： | 1 |
| 9 | Experimental Kinematic Calibration of Parallel Manipulators U sing a Relative Position Error Measurement System 显示文摘 | Abtahi M Pendar H Alasty A | 2010 | Robotics and Computer--Integrated Manufac- turing2010，26，： | 1 |
| 10 | Singularityanalysis of parallel manipulators using constraint planemethod显示文摘 | PENDAR H MAHNAMA M ZOHOOR H | 2011 | Mechanism and Machine Theory2011，1，46： | 1 |
| 11 | Cataract surgery in petients with dry eyes显示文摘 | Sharma A Pendar SS | 1998 | J Cataract Refrat Surg1998，24，8： | 1 |
| 12 | Experimental kinematic calibration of parallel manipulators using a relative position error measurement system 显示文摘 | Abtahi M Pendar H Alasty A | 2010 | Robotics and Computer-Inte- grated Manufacturing2010，26，6： | 1 |
| 13 | Calibration of parallel kinematic machine tools using mobility constraint on the tool center point 显示文摘 | Abtahi M Pendar H Alasty A | 2009 | The International Journal of Advanced Manufacturing Technology2009，45，5： | 1 |
| 14 | Singularity analysis of parallel manipulators using constraint plane method显示文摘 | PENDAR H MAHNAMA M ZOHOOR H | 2011 | Mechanism and Machine Theory2011，46，1： | 1 |
| 15 | Comments to the:'Closed-form dynamic equations of the general Stewart platform through the Newton-Euler approach'and'A Newton-Euler formulation for the inverse dynamics of the Stewart platform manipulator'显示文摘 | Vakil M Pendar H | 2008 | Mechanism and Machine Theory2008，43，10： | 1 |
| 16 | On the kinematic analysis of a spatial six-degree-of-freedom parallel manipulator显示文摘 | Vakil M Pendar H Zohoor H | | 0，，01： | 1 |
| 17 | Buckling analysis of embedded graphene oxide powder-reinforced nanocomposite shells显示文摘In this study,the buckling analysis of a Graphene oxide powder reinforced(GOPR)nanocomposite shell is investigated.The effective material properties of the nanocomposite are estimated through Halpin-Tsai micromechanical scheme.Three distribution types of GOPs are considered,namely uniform,X and O.Also,a first-order shear deformation shell theory is incorporated with the principle of virtual work to derive the governing differential equations of the problem.The governing equations are solved via Galerkin’s method,which is a powerful analytical method for static and dynamic problems.Comparison study is performed to verify the present formulation with those of previous data.New results for the buckling load of GOPR nanocomposite shells are presented regarding for different values of circumferential wave number.Besides,the influences of weight fraction of nanofillers,length and radius to thickness ratios and elastic foundation on the critical buckling loads of GOP-reinforced nanocomposite shells are explored. | Farzad Ebrahimi Pendar Hafezi Ali Dabbagh | 2021 | Defence Technology(防务技术)2021，17，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员