Zhao X. – TechConnect Briefs

Nanocomposite Motion Tape for Distributed Skin-Strain, Muscle Engagement, and Movement Assessment

Lin Y-A, Zhao X., Huang S-C, Loh K.J., University of California San Diego, US

Wearable sensors have garnered considerable public interest due to increased personal health awareness. In addition, wearables can be particularly beneficial for the military, athletic, and healthcare industries. However, most wearables today are still based on [...]

A novel nano-sized polymer microsphere as a potential shale stabilizer in water-based drilling fluids

Xu J., Qiu Z., Chen G., Zhong H., Zhao X., China University of Petroleum, CN

Borehole instability caused by pore pressure transmission and shale hydration gives rise to a number of problems, which has been a challenge during oil and gas drilling process for many years [1]. Recent years, the [...]

Monte Carlo Simulation of Transport in Two-Dimensional Electron Gas via Energy Relaxation

Zhao X., Nabet B., Drexel University, US

We simulate the process of energy relaxation in two-dimensional-electron-gas (2DEG) via electron-electron (e-e) scattering by Monte Carlo method. Results indicate a sub-picosecond energy relaxation response time to external perturbation. We suggest that carriers are subjected [...]

Toxicity of Nanomaterials to Living Cells

Jin Y., Wu M., Zhao X., University of North Dakota, US

We have investigated the toxicity of nanomaterials to living cells at the cellular and molecular levels. Recently, nanomaterials have being rapidly developed and shown great potential for use in various bioapplications due to their unique [...]

Theoretical Studies on Relative Stabilities of C70 Fullerene Dimers

Zhao X., Slanina Z., Goto H., Toyohashi University of Technology, JP

Five stable C70 fullerene dimers with [2+2] bridges between hexagon-hexagon bonds, which are experimentally characterized very recently, have been investigated by several semi-empirical approaches and ab initio Hartree-Fock self-consistent field calculation and hybrid density functional [...]

Dynamic Simulation of an Electrostatically Actuated Impact Microactuator

Zhao X., Dankowicz H., Reddy C.K., Nayfeh A.H., Virginia Tech, US

We study the dynamics of an electrostatically driven impact microactuator reported by Mita and associates. The microactuator is modeled as a two-degree-of-freedom rigid multibody system. The impact phenomenon is described by a simple impact law [...]

Computing Enthalpy-Entropy Interplay for Isomeric Fullerenes: C94 IPR Set

Zhao X., Slanina Z., Goto H., Osawa E., Toyohashi University of Technology, JP

The complete set of 134 isolated-pentagon-rule (IPR) isomers of C94 has been studied by the SAM1, PM3, AM1, and MNDO quantum-chemical methods, MM3 force field method, ab initio HF/4-31G SCF calculation and density functional theory [...]

Computing Isomeric Higher and Smaller Fullerenes: Materials Controlled by a Profound Enthalpy/Entropy Interplay

Zhao X., Slanina Z., Osawa E., Toyohashi University of Technology, JP

Early results from the eighties for small carbon clusters like C4 or C6 have suggested that the combined quantum-chemical and statistical-mechanical computations could show some interesting temperature effects also for isomeric fullerenes. This feature was [...]