In this paper, a four-bar mechanism with two flexible links is proposed to be used in a micromechanical flying insect robot wing thorax design for stroke amplification. PZT5H and PZN-PT based unimorph actuators are utilized at the input link of the four-bar. The kinematics and dynamics of the proposed wing strcuture with two parallel four-bar mechanisms are analyzed, and DC forces generated at ...

The mechanism for gamma ray bursters and the detection of gravitational waves (GWs) are two outstanding problems facing modern physics. Many models of gamma ray bursters predict copious GW emission, so the assumption of an association between GWs and GRBs may be testable with existing bar GW detector data. We consider Weber bar data streams in the vicinity of known GRB times and present calcula...

Bar code provides convenient way for people labeling a tag on a product so that people can easily and quickly identify the content of product itself. Large information of any product can be store in the form of bar codes which reduces the size of data. When this bar code contains important data or privacy information, the risk of security becomes an important problem. This paper proposes a secr...

Shallow hydrophobic insertions and crescent-shaped BAR scaffolds promote membrane curvature. Here, we investigate membrane fission by shallow hydrophobic insertions quantitatively and mechanistically. We provide evidence that membrane insertion of the ENTH domain of epsin leads to liposome vesiculation, and that epsin is required for clathrin-coated vesicle budding in cells. We also show that B...

0965-9978/$ see front matter 2008 Elsevier Ltd. A doi:10.1016/j.advengsoft.2007.08.003 * Corresponding author. Tel.: +1 530 752 5020; fax E-mail address: [email protected] (H.H. Cheng A spreadsheet-based mechanism analysis and animation system is presented in this article. The system is developed in Excel using Ch, an embeddable C/C++ interpreter, and Ch Mechanism Toolkit. It allows users to ...

The aim of this paper is to give a different method from the classic ones for the synthesis of the four-bar guiding mechanism. The method consists of the decomposition of the mechanism into small parts, simple kinematic chains, which are synthesized separately and then we put together the results, obtaining the synthesis of the whole mechanism.

In this paper I argue that, far from necessarily hindering bar formation in disc galaxies, inner haloes may stimulate it. This constitutes a new instability mechanism by which bars can grow. To show this I use a number of N-body simulations whose initial conditions have identical discs and more or less concentrated haloes. They show that the bar that grows in the more halo-dominated environment...

Sorting nexins (SNXs) are regulators of endosomal sorting. For the SNX-BAR subgroup, a Bin/Amphiphysin/Rvs (BAR) domain is vital for formation/stabilization of tubular subdomains that mediate cargo recycling. Here, by analysing the in vitro membrane remodelling properties of all 12 human SNX-BARs, we report that some, but not all, can elicit the formation of tubules with diameters that resemble...

A closed-chain mechanism having redundancy in force domain can produce an effective spring effect by proper internal load distribution. The so-called antagonistic stiffness is provided by redundant actuation in conjunction with nonlinear geometric constraints. The objective of this study is twofold. The first one is to propose a methodology for optimal kinematic design of antagonistic stiffness...

In this work, we predict the light hadronic decay channels $Y(4230)\to\Lambda\bar{\Lambda}$ and $\Xi^-\bar{\Xi}^+$ when treating $Y(4230)$ as a vector charmonium state. By loop mechanism, branching ratios of processes are calculated. addition, discuss possibility carrying out search for signal through $\Lambda\bar{\Lambda}$ from $e^+e^-$ annihilation. Assuming exist in channel, also present tim...