Results 51 to 60 of about 1,013,684 (323)

Understanding bio‐based polymers: A study of origins, properties, biodegradation and their impact on health and the environment

FEBS Open Bio, EarlyView.
This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc, Blaž Stres, Mirica Karlovits, Igor Karlovits, Petra Jerič, Ondrej Panák, Anja Verbič, Blaž Likozar, Uroš Novak   +8 more
wiley   +1 more source

Electrical Impedance Tomography [PDF]

, 2004
INTRODUCTION PART 1 ALGORITHMS The Reconstruction Problem PART 2 HARDWARE EIT Instrumentation PART 3 APPLICATIONS Imaging of the Thorax by EIT EIT of Brain Function Breast Cancer Screening with EIT Applications of EIT in the Gastrointestinal Tract (GIT) Other Clinical Applications of EIT PART 4 NEW DIRECTIONS Magnetic Induction Tomography Magnetic ...
openaire   +2 more sources

A South African review of harmonic emission level assessment as per IEC61000-3-6 [PDF]

, 2015
Large-scale renewable power producing plants are being integrated into South African networks. Network operators need to ensure that Renewable Power Plants (RPP) do not negatively affect the power quality levels of their networks, as harmonics amongst ...
Peterson, B, Rens, J, Minnaar, U, Botha, G, Desmet, Jan   +4 more
core  

Contribution of a smart transformer in the local primary control of a microgrid [PDF]

, 2013
In order to enable an easy participation of microgrids in the electricity markets, the smart transformer (ST) concept has been developed. The ST controls the power exchange between a microgrid and the utility network by only controlling its microgrid ...
De Kooning, Jeroen, Van de Vyver, Jan, Vandevelde, Lieven, Vandoorn, Tine, Willems, Wim   +4 more
core   +2 more sources

Ultrasound‐Driven Highly Stable Implantable Triboelectric Nanogenerator with Human‐Tissue Acoustic Impedance‐Matched Polyether Ether Ketone

Advanced Materials & Technologies
Implantable electrical neurostimulators offer a promising avenue for treating neurological disorders. However, their dependency on a finite battery life limits their long‐term utility. Emerging transcutaneous ultrasound‐driven triboelectric nanogenerator
Sera Jeon, Xiangchun Meng, Najaf Rubab, Dabin Kim, Hyeon Mo, Xiao Xiao, Min Jae Park, Dan ” Cho, S. Kim, B. Choi, Sang‐Woo Kim   +10 more
semanticscholar   +1 more source

Current Tracking Adaptive Control of Brushless DC Motors

International Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García, Axel Coronado‐Andrade, Gerardo Espinosa‐Pérez, Luis Alvarez‐Icaza   +3 more
wiley   +1 more source

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

International Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg, Paulo Jefferson Dias de Oliveira Evald, Shivam Chaturvedi, Hilton Abilio Gründling, Rodrigo Varella Tambara, Wencong Su   +5 more
wiley   +1 more source

Mathematical models for predicting human mobility in the context of infectious disease spread: introducing the impedance model

International Journal of Health Geographics, 2017
Background Mathematical models of human mobility have demonstrated a great potential for infectious disease epidemiology in contexts of data scarcity.
Kankoé Sallah, Roch Giorgi, Linus Bengtsson, Xin Lu, Erik Wetter, Paul Adrien, Stanislas Rebaudet, Renaud Piarroux, Jean Gaudart   +8 more
doaj   +1 more source

Equivalent Electrical Circuit Modeling of Ceramic-Based Microbial Fuel Cells Using the Electrochemical Impedance Spectroscopy (EIS) Analysis [PDF]

Journal of Renewable Energy and Environment, 2019
The effect of the thickness of ceramic membrane on the productivity of microbial fuel cells (MFCs) was investigated with respect to the electricity generation and domestic wastewater treatment efficiencies. The thickest ceramic membrane (9 mm) gained the
Vajihe Yousefi, Davod Mohebbi-Kalhori, Abdolreza Samimi   +2 more
doaj   +1 more source

Shift factor-based SCOPF topology control MIP formulations with substation configurations [PDF]

, 2017
Topology control (TC) is an effective tool for managing congestion, contingency events, and overload control. The majority of TC research has focused on line and transformer switching. Substation reconfiguration is an additional TC action, which consists
Caramanis, Michael C., Goldis, Evgeniy A., Li, Xiaoguang, Philbrick, C. Russ, Rudkevich, Aleksandr M., Ruiz, Pablo A.   +5 more
core   +1 more source