Results 141 to 150 of about 598,855 (311)

Stepwise On‐Surface Synthesis and Transformations of Two‐Dimensional Covalent Organic Frameworks by Controlled Thermal Stimuli

open access: yesAdvanced Materials, EarlyView.
The seminal transformation of a 2D‐COF (SURFCOF‐IMDEA1) into a 2D porous COF (SURFCOF‐IMDEA2) on Au(111) by a sequential C‐C coupling and ladderization triggered by thermal annealing steps at increasing temperatures is reported. Abstract The development of covalent organic frameworks (COFs) is currently a primary objective in materials science, taking ...
Ana Barragán   +11 more
wiley   +1 more source

Optimal periodic output feedback control: a continous-time approach and a case study

open access: yes, 2010
This article deals with the problem of optimal static output feedback control of linear periodic systems in continuous time, for which a continuous-time approach, which allows to deal with both stable and unstable open loop systems, is presented.
Lovera, Marco   +5 more
core  

The effect of verbal feedback on psychological self - control basketball shot pattern in female students

open access: yesمجله علوم روانشناختی, 2019
Background: Providing feedback with self-controlled methods has improved the performance and learning of motor skills as a result of the motivational effects and the deeper processing of related information.
azadeh lesani, mehdi shahbazi
doaj  

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

open access: yesAdvanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi   +4 more
wiley   +1 more source

Unravelling the self-concept enhancement conundrum : a critical analysis of a new self-concept enhancement intervention

open access: yes, 2004
Recent advances in self-concept theory, research and measurement provide a new basis for the design of powerful self-concept enhancement intervention.
Craven, Rhonda, Marsh, Herbert W.
core  

Stabilizing a nonlinear system by using feedback control [PDF]

open access: yes, 2010
This dissertation considers how to stabilize a nonlinear system by using feedback control. To stabilize a nonlinear system, we first need to find the unstable steady state.
Kareem, Rasaq
core  

On feedback stabilization of nonlinear discrete-time state-delayed systems

open access: yes, 2009
In this paper, we consider the problem of feedback stabilization of discrete-time systems with delays. The systems under consideration are nonlinear and nonaffine.
Woihida Aggoune   +5 more
core   +1 more source

Enhanced MiRISC expression noise reduction by self-feedback regulation of mRNA degradation

open access: yesComputational and Structural Biotechnology Journal
The microRNA (miRNA) induced silencing complex (miRISC) is the targeting apparatus and arguably the rate-limiting step of the miRNA-mediated regulatory subsystem – a major noise reducing, though metabolically costly, mechanism. Recently, we reported that
Shuangmei Tian   +5 more
doaj   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

open access: yesAdvanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu   +3 more
wiley   +1 more source

Digital Microneedles for Multiplexed Transdermal Sensing via Fluorescent QR Codes

open access: yesAdvanced Materials, EarlyView.
Digital fluorescent microneedles encode biochemical information in skin into scannable QR codes through threshold‐activated probes that generate binary on/off signals. By transforming analog fluorescence into discrete digital patterns, this platform enables calibration‐free, multiplexed transdermal sensing of physiologically relevant biomarkers ...
Farbod Abazar   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy