M. Roshini, G .B. Priyanga, K. C. Devi
PSG College of Technology, Coimbatore, Tamil Nadu, India
The objective of this paper is to design and simulate Carbon Nano-Tube (CNT) based mass sensor that determines extremely low measures of molecules using COMSOL Multiphysics® software. The ultimate goal of this nanomechanical resonator sensor is that it allows detection at single molecular level. The change in the mass from the resonator can cause a shift in the resonant frequency. The ...
Los Alamos National Lab, Los Alamos, NM, USA
Metal reed valves are used for flow rectification in electrohydraulic pumps driven by smart materials at high frequencies but it is difficult to predict their behavior when the surrounding fluid has considerable inertia and viscosity. Simulation of this phenomenon involves modeling the fluid-structure-interaction between the bending of the reed and the flow past the valve. In this model, we use ...
C. Cherkouk , T. Nestler , M. Zschornak , T. Leisegang , D. C. Meyer ,
 Institute of Experimental Physics, Technische Universität Bergakademie Freiberg, Freiberg, Germany
All-solid-state batteries are among the next generation battery concepts that are currently being envisaged among both the international research community and industrial electronic vehicle producers. In addition to a long lifetime of more than several thousand cycles and intrinsic safety, applying solid electrolytes offers a high energy density due to larger electrochemical windows. Aluminum is ...
I. Neitzel , R. Kreczkiuski ,
 FATEB, Telemaco Borba, Paraná, Brasil
A obtenção de polpa celulósica antecede a produção de papel e envolve a separação das fibras da madeira mediante a utilização de energia mecânica, térmica, química ou a combinação desses processos. Esta operação é realizada em um reator, tubular, cilíndrico e vertical (tipicamente 6 m de diâmetro e 50 m de altura), denominado genericamente de digestor. A madeira é alimentada pelo topo na forma ...
J. Dsa, Manisha, M. Goswami , B.R Singh ,
 Indian Institute of information technology Allahabad, Allahabad, Uttar Pradesh, India
We have developed a piezoelectrically controlled MEMS drug delivery device for on-demand release of defined quantities of drug. A drug-loaded micro reservoir (∅6mm×550µm) is sealed by A membrane placed over the drug reservoir on which the piezoelectric material is deposited. On application of voltage across this piezoelectric material , the membrane deflects allowing the fluid to fill into the ...
M. Asgarisabet [1,2], R. Czapla , J. Krueger , B. Sterling ,
 Michigan Technological University, Houghton, MI, USA
 HARMAN International, Detroit, MI, USA
A simulation of an electrodynamic planar loudspeaker (EDPL) has been developed in this study with the COMSOL Multiphysics® software. Using the simulated model, effect of different parts has been studied to improve the performance. The locations of the coil and magnets have been obtained using the magnetic flux density. Then, the sound pressure level and directivity index have been obtained.
MHD Electrolyte Flow within an Inter-electrode Gap Driven by a Sinusoidal Electric Field and Constant Magnetic Field
C. Bradley , J. Samuel ,
 Benét Laboratories, U.S. Army RDECOM-ARDEC, Watervliet, NY, USA
 Department of Mechanical Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA
PECM is a necessary extension to traditional ECM for some high-performance materials. Electrolyte flow in the inter-electrode gap (IEG) can be assisted using a magnetic field to allow higher currents, but this creates a magnetohydrodynamic flow. This paper presents a study of flow velocity in an IEG with a sinusoidal electric field within a magnetic field. EIS experiments use a 7075 aluminum ...
J. Schüttler , B. Neumann , S. Belke , F. Becker , S. Ruppik ,
 Coherent | ROFIN, Hamburg, Germany
The remarkable power scaling of high power fiber lasers over the past years has become more and more challenging, because the effects of transverse mode instability (TMI) and photodarkening (PD) of the fiber are limiting the effective output power of typical industrial fiber lasers. The origin of the TMI is a power transfer from the fundamental mode of the fiber to higher transverse modes via ...
J. S. Crompton , L. Gritter , K. Koppenhoefer ,
 AltaSim Technologies, Columbus, OH, USA
Small-scale plasma jets in atmospheric air can produce regions of highly reactive chemistry coincident with temperatures approaching room temperature allowing his type of cold plasma jet to be used for decontamination of surfaces and sterilization of living tissue. In the device under consideration in this work, atmospheric pressure air is forced through a hollow anode and cathode. Immediately ...
Using Perturbation Force Analysis for the Design of a Levitronc: an Application of Magnetic Levitation
Z. De Grève[1,2], C.Versèle, and J.Lobry
Faculty of Engineering, Mons, Belgium
Belgian Fund for Research, F.R.S./FNRS, ResearchFellow, Belgium
The Levitron offers an interesting demonstration of natural magnetic levitation using permanent magnets. It is composed by a small magnetized top and a circular magnetized base with a hole on its center. The top is placed in an area where magnetic field configuration and gyroscopic torques allow the existence of a locus of stable equilibrium. In this paper, we intend to dimension and realize a ...