Results 81 to 90 of about 20,334 (293)

Chloroplast Stress Signals Orchestrate Epidermis‐Specific Remodeling of Mitochondria and ER Under High Light

open access: yesAdvanced Science, EarlyView.
High light exposure triggers an epidermis‐specific remodeling of mitochondria and ER in Arabidopsis, driven by chloroplast‐derived signals. Live‐cell imaging shows that HL rapidly suppresses mitochondrial motility, followed by fusion‐driven elongation and ER cisternal expansion.
Evan R. Angelos   +12 more
wiley   +1 more source

A Soft Robotic Model for Simulating Heart Valve Disease and Cardiac Interventions

open access: yesAdvanced Science, EarlyView.
This paper introduces a fully synthetic fabrication methodology for a soft robotic, in‐vitro model of the left‐heart, complete with a functioning mitral valve apparatus. With a view towards patient‐specific modeling, we demonstrate physiological flow and pressure waveforms, tunable mitral valve function with clinical imaging compatibility, and its use ...
James Davies   +14 more
wiley   +1 more source

Analisis Kerusakan Katup Ketika Overhaul Mesin Bulldozer Caterpillar D8R Diatas 30.000 Jam [PDF]

open access: yes, 2018
The Bulldozer is a heavy-duty tractor type vehicle with a chain and equipped with a blade located in front. This heavy equipment is used for the word of digging, pushing, displacing and pulling material (soil, sand,etc) The purpose of this final proect ...
, Supriyono, S.T.,M.T.,Ph.D.   +1 more
core  

Borophene: Crucial Challenges and the Way Forward

open access: yesAdvanced Science, EarlyView.
This review explores the challenges and progress in borophene research, focusing on synthesis strategies, structural properties, and potential applications. It highlights key experimental breakthroughs, discusses theoretical insights into borophene's unique features, and addresses pathways for overcoming stability and scalability issues.
Zhixuan Li   +3 more
wiley   +1 more source

Válvula mecânica em carbono, de disco basculante, com revestimento de material biológico: princípios e desenvolvimento Pivoting disc carbon mechanical valve covered with biological material: principles and development

open access: yesBrazilian Journal of Cardiovascular Surgery, 1995
INTRODUÇÃO: após estudo experimental de implante de material biológico e carbono em átrio esquerdo e aorta, foi desenvolvida uma nova prótese, primeira válvula de carbono feita inteiramente no País.
Hélio Pereira de Magalhães   +7 more
doaj  

System safety in Stirling engine development [PDF]

open access: yes
The DOE/NASA Stirling Engine Project Office has required that contractors make safety considerations an integral part of all phases of the Stirling engine development program.
Bankaitis, H.
core   +1 more source

Single‐Cell Mitochondrial Lineage Tracing Decodes Fate Decision and Spatial Clonal Architecture in Human Hematopoietic Organoids

open access: yesAdvanced Science, EarlyView.
This study repurposes mitochondrial DNA mutations as endogenous barcodes for lineage tracing in human pluripotent stem cell‐derived organoids. Integrated with transcriptomic and spatial data, it reveals NOTCH‐mediated stromal‐progenitor crosstalk orchestrates clonal dynamics and spatial zonation during early hematopoietic development, offering a non ...
Yan Xue   +17 more
wiley   +1 more source

LOX-container-rupture fire hazards Final report, Aug. 29 - Oct. 16, 1967 [PDF]

open access: yes
Liquid oxygen container rupture fire hazards - impingement effects of compressed oxygen gas and cryogenic supercritical oxygen against Mylar superinsulation in ...
Weatherford, W. D., Jr.
core   +1 more source

Modeling a Fluidized-Bed Reactor for the Catalytic Polymerization ff Ethylene: Particle Size Distribution Effects [PDF]

open access: yes, 2005
Particle size distributions in the output stream of commercial, fluidized-bed reactors for ethylene polymerization are analyzed using a mathematical model.
Chiovetta, Mario Gabriel, Grosso, Walter
core  

MELEGROS: Monolithic Elephant‐Inspired Gripper with Optical Sensors

open access: yesAdvanced Science, EarlyView.
MELEGROS is a monolithic, elephant‐inspired soft gripper integrating 3D‐printed optical sensors within a pneumatically actuated lattice. Simulation‐guided design decouples tactile and proprioceptive sensing. Characterized through grasping tests, MELEGROS can reach, scoop, and grasp, showcasing a paradigm where fully embedded sensing and continuous ...
Petr Trunin   +4 more
wiley   +1 more source

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