control – TechConnect Briefs

Robot Axis Control Using a Differential Learning Algorithm

Abegaz B., Loyola University of Chicago, US

The motion control of robotic arms using brushless DC motors has been implemented using various mechanisms, including a model predictive controller (MPC), a fuzzy controller and supervised machine learning methods. In order to provide a [...]

A Vision toward Layer-wise Intelligent Monitoring and Control of Scan Strategy in Powder-bed Fusion Process

Malekipour E., El-Mounayri H., Al Hasan M., Faierson E.J., Purdue School of Engineering and Technology, US

Despite significant developments in metal powder-bed fusion (PBF) additive manufacturing (AM) process, some frequent thermal anomalies hinder the repeatability and uniformity in mechanical properties of printed parts. Controlling the thermal evolution of the fabrication process [...]

Understanding Charge Dynamics in Silicon Dangling Bond Structures for Nanoscale Devices

Livadaru L., Pitters J.L., Taucer M., Wolkow R.A., University of Alberta / NINT, CA

A dangling bond (DB) on a silicon surface atomic has been found to behave as an atomic-scale quantum dot [1-4]. This opens up the possibility of using DBs as building blocks for novel electronic structures, [...]

A Smarter Grid enables Communal MicroGrids

Mohn T., General MicroGrids, Inc, US

As policy makers seek to integrate a serious sociological and environmental issue into energy production, the typical utility is faced with not only technology upgrades, but also dealing with new systemic events that occur far [...]

A Smarter Grid enables Communal MicroGrids

Mohn T., General MicroGrids, Inc, US

As policy makers seek to integrate a serious sociological and environmental issue into energy production, the typical utility is faced with not only technology upgrades, but also dealing with new systemic events that occur far [...]

Lessons learned from the field, how to protect yourself from occupational exposure to engineered nanomaterials

Hodson L.L., Geraci. M. Methner C.L., Crawford C., CDC/NIOSH, US

NIOSH has visited over 26 nanomaterial facilites, evaluated workplace exposures and created recommended guidance to reduce potential exposures to nanomaterials. A summary of lessons learned about effective control strategies will be shared.

Express Control of Toxicity and Content of Patulin by Optical Biosensors

Starodub N.F., Pilipenko I.V., Pilipenko L.N., Pilipenko I.V., Pilipenko L.N., Katsev A.M., National University of Life and Environmental Sciences of Ukraine, UA

In this report the experimental data about the determination of P toxicity by optical biosensors based on the application of chemiluminescence (ChL) of Daphnia magna living media (ChL-test) and bioluminescence (BL) of Ukrainian strains of [...]

Wireless SensorSystem with Bidirectional Communications

Husak M., Boura A., Jakovenko J., Czech Technical University in Prague, CZ

The system contains units: wireless, control, actuator, software equipment. RF wireless unit ensures wireless communication between control unit and sensors as well as wireless switch unit. The control unit controls system operation, i.e. communication transfer, [...]

Scalability and Control of Electrophoretic Directed Assembly of Nanoparticles

Yilmaz C., Cha N-G, Somu S., Busnaina A., Northeastern University, US

The nanoscale directed assembly of nanoparticles has a many applications in biotechnology, energy, electronics and nanomaterials. Directed assembly of nanoparticles for biosensor devices, nanowire and interconnects are being conducted at the CHN. The nanoparticle based [...]

Biomolecular activity switch: an application of metallic nanoparticle plasmon resonance

Alper J., Wijaya A., Crespo M., DeFlores L., Tokmakoff A., Hamad-Schifferli K., Massachusetts Institute of Technology, US

Specific external control of biomolecular activity is a critical step in harnessing the power of nature’s molecular machinery. We propose and demonstrate one control method, a biomolecular activity switch. Since proteins are the primary macromolecule [...]