Results 151 to 160 of about 6,739,698 (303)

Design and Development of Multi-mode Control System for Beam Pumping Unit

open access: yesShiyou jixie, 2018
In order to deal with the complicated and variable working conditions in the production process of the pumping unit, a multi-mode control system of the beam pumping unit is designed.
Ren Xuhu   +5 more
doaj  

Optimal Control Drives Ultrafast and Energy‐Efficient Magnetization Switching in Van der Waals Magnets

open access: yesAdvanced Materials, EarlyView.
ABSTRACT The accelerating expansion of data‐centric technologies is sharply increasing the energy burden of information storage, placing unprecedented pressure on the efficiency of magnetic switching. Conventional field‐driven reversal, once the foundation of magnetic memory, has become impractical in modern architectures due to its high energy cost ...
Mohammad H. Badarneh   +2 more
wiley   +1 more source

Mapping the Spatial Sensitivity of Aquitard Hydraulic Parameters on Pumping Test Drawdowns. [PDF]

open access: yesGround Water
van Leer MD   +4 more
europepmc   +1 more source

Hydrogel‐Based Airway‐on‐Tube With Perfusable Endothelial Lumen and Outward Epithelialization

open access: yesAdvanced Materials, EarlyView.
A hydrogel‐based airway‐on‐tube platform featuring a perfusable endothelial lumen and outward epithelialization is presented. The system supports primary human bronchial epithelial and lung microvascular endothelial coculture under air‐liquid interface conditions.
Ali Doryab   +8 more
wiley   +1 more source

Tractor Testing; Belt Power Test; Caterpillar

open access: yes, 1949
Caterpillar D4 diesel during belt test. Caterpillar D4 diesel crawler inside the old tractor test lab with a belt running from the rear of the tractor to the dynamometer inside the control ...
Nebraska Tractor Test Laboratory
core  

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

open access: yesAdvanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

GPSPS. German Personal Sense of Power Scale

open access: yes
Die deutsche Adaptation GPSPS misst mit je 6 Items die subjektive Macht als Trait- oder State-Komponente sowie in verschiedenen Beziehungstypen. Reliabilität: Die interne Konsistenz lag zwischen α/ω = .78 und α/ω = .89.
Körner, R.
core   +1 more source

Trions as Fundamental Species in Chemically Doped Polymer Semiconductors

open access: yesAdvanced Materials, EarlyView.
This work shows that exciton–charge carrier coupling in doped polymer semiconductors gives rise to multi‐particle states, including trions—quasiparticles consisting of two holes and one electron under p‐doping—and bound exciton‐hole pairs, as identified through spectroscopic and theoretical analysis.
Hongmo Li   +23 more
wiley   +1 more source

Screening to Assess Psychosocial Follow-Up Needs in Pediatric Oncology (Self- and Parent-Report)

open access: yes
Der NPO-11 dient als Screening zur Einschätzung des psychosozialen Nachsorgebedarfs in der pädiatrischen Onkologie im Selbst- und Elternbericht. Anhand von Expertenangaben wurden jeweils 11 Items für die Nachsorgebereiche Progredienzangst, Traurigkeit ...
Kamm-Thonwart, R.   +8 more
core   +1 more source

Home - About - Disclaimer - Privacy