Results 71 to 80 of about 891,290 (307)

Microfabricated Anisotropic Myobundles for the Scalable Production of Cardiac Tissue Grafts

Advanced Functional Materials, EarlyView.
Controlling the anisotropy of cardiac tissue remains an outstanding challenge in the field of cardiac tissue engineering. Here, we introduce an approach to generate anisotropic cardiac myobundles using cell‐adhesive, synthetic, electrospun fibers and stem cell‐derived cardiac fibroblasts.
Maggie E. Jewett, Javiera Jilberto, Margaret E. Stanley, David O. Ntim, Siddhi M. Bhirud, Avianna T. Schroeder, Gonzola X. Anyosa Galvez, Jingyi Xia, Samuel J. DePalma, Emmanouil Agrafiotis, Susan S. Xi, Amanda S. Bluem, Courtney M. Lestock, Adam S. Helms, David A. Nordsletten, Brendon M. Baker   +15 more
wiley   +1 more source

Dundee Discussion Papers in Economics 228:A soft edge target zone model: theory and application to Hong Kong [PDF]

, 2009
Hong Kong’s currency is pegged to the US dollar in a currency board arrangement. In autumn 2003,the Hong Kong dollar appreciated from close to 7.80 per US dollar to 7.70, as investors feared that the currency board would be abandoned. In the wake of this
Chen, Yu-Fu, Funke, Michael, Glanemann, Nicole   +2 more
core  

Analysis of a Novel Soft-Switching DC–DC Converter for Reduction in Switching Loss

Power Electronics and Drives
The conventional buck converter is the first and foremost member among the family of DC–DC converters. Major drawback of the conventional buck converter is the hard-switching that leads to many shortcomings and finally leads to poor efficiency.
Behera Siddhartha, Dash Saroja Kumar, Sahu Manoj Kumar   +2 more
doaj   +1 more source

Pickering‐Engineered Microparticles for Magnetically Guided Motion and Light‐Triggered Catalysis

Advanced Functional Materials, EarlyView.
Magnetically responsive wax microparticles stabilized by hematite cubes through the Pickering emulsification strategy are developed, showing controlled size, motion, and light‐activated catalytic activity. Annealing under a magnetic field enhances their mobility and steering.
Chiara Ferlito, Ludovico Guercio, Giuseppe Cavallaro, Giuseppe Lazzara, Theodore Hueckel, Lorenzo Lisuzzo, Stefano Sacanna   +6 more
wiley   +1 more source

Soft-switching High Frequency AC Link Buck-Boost DC-DC Converters

, 2015
AC link universal power converters are a relatively new class of power converters with numerous advantages. The reason they get the universal power converters name is that inputs and outputs of these converters can be either dc or ac; therefore, they can
Tao Wang (12008)
core  

A Novel High Power Factor and Soft Switching SAB-SWISS Rectifier With High-Low-High-Low Modulation and Hybrid Frequency Control

IEEE Access
A novel SWISS rectifier based on single active bridge converter (SAB-SR) is proposed. The high-low-high-low (HLHL) voltage waveform modulation to realize soft-switching for the power switches and the hybrid frequency control scheme to achieve high power ...
Bo Zeng, Ziwen Yang, Shi Yan, Lingjuan Tan, Shaojun Xie   +4 more
doaj   +1 more source

Designing Stable Periodic Magnetization Textures by Tailoring Anisotropies and Applying Geometrical Transformation

Advanced Functional Materials, EarlyView.
This work explores the possibility to design stable periodic magnetization textures by transforming a 2D film into a rolled‐up 3D architecture and back. In case of an isotropic exchange‐biased layer architecture, the magnetization encoded in the 3D state evolves into a spin‐spiral pattern with controlled periodicity after unrolling.
Aman Singh, Ivan Soldatov, Rudolf Schäfer, Volker Neu   +3 more
wiley   +1 more source

Thermally Pre‐Formed Reconfigurable Resistive Random‐Access Memory Crossbar Arrays: A Dual‐Mode Platform for Robust Physically Unclonable Functions and In‐Memory Computing

Advanced Functional Materials, EarlyView.
A reconfigurable RRAM platform utilizing thermally pre‐formed filaments (TPFs) is developed to realize robust hardware security. By exploiting the thermodynamic stochasticity of TPFs, exceptionally reliable physically unclonable functions (PUFs) are achieved.
Seongbin Kwon, Taewon Lee, Dohyeong Kim, Sungmin Hwang, Sungjoon Kim   +4 more
wiley   +1 more source

Analysis of PFC boost converter with soft-switching configuration

Electrical Engineering in Japan, 1999
This paper proposes use of a lossless snubber with a switching device to perform soft switching, thus not only decreasing switching loss in the device drastically, but also improving the input ac current waveform distortion. Computer simulation results show that the input current waveform of the proposed converter seems to eliminate the third harmonic ...
Kimura, Noriyuki, Morizane, Toshimitsu, Taniguchi, Katsunori   +2 more
openaire   +2 more sources

Targeting Post‐Irradiation Thyroid Dysfunction: Electrospun Scaffolds As A Dual‐Action Approach for Antioxidant and Immune Modulation

Advanced Healthcare Materials, EarlyView.
Radiation‐induced hypothyroidism follows head and neck radiotherapy due to oxidative stress and inflammation. Electrospun polycaprolactone scaffolds containing adenosine have potential to modulate thyroid repair. Scaffolds enhance thyrocyte proliferation, antioxidant enzymes glutathione peroxidase and catalase, reduce senescence and apoptosis markers ...
Maria Heim, Ella‐Louise Handley, Daniel Grant, Lizi M. Hegarty, Elaine Emmerson, Anthony Callanan   +5 more
wiley   +1 more source