Results 31 to 40 of about 16,250 (289)

Natural Frequencies of a Tethered Satellite System

Applied Sciences
This study investigated the natural frequencies of a tethered satellite system to enhance stability and operational reliability. Tethered satellite systems provide many advantages for space missions but exhibit inherently complex dynamics due to the ...
Yihun Yoon, Woojae Jang, Jintai Chung
doaj   +1 more source

Bottom‐Up Coacervate‐Based Artificial Cells: Integrating Cellular Hallmarks into Complex Life‐Like Systems

Angewandte Chemie, EarlyView.
Current interest in artificial cell research underscores its potential to deepen our understanding of life's fundamental processes. This review highlights advances in bottom‐up coacervate‐based artificial cell engineering via combined integration of cellular hallmarks.
Arjan Hazegh Nikroo, Angshuman Das, Madelief A. M. Verwiel, Jan C. M. van Hest   +3 more
wiley   +2 more sources

An analytical model for wind-driven Arctic summer sea ice drift [PDF]

The Cryosphere, 2016
The authors present an analytical model for wind-driven free drift of sea ice that allows for an arbitrary mixture of ice and open water. The model includes an ice–ocean boundary layer with an Ekman spiral, forced by transfers of wind-input ...
H.-S. Park, A. L. Stewart
doaj   +1 more source

The development of the Atmospheric Measurements by Ultra-Light Spectrometer (AMULSE) greenhouse gas profiling system and application for satellite retrieval validation [PDF]

Atmospheric Measurement Techniques, 2020
We report in this paper the development of an embedded ultralight spectrometer (<3 kg) based on tuneable diode laser absorption spectroscopy (with a sampling rate of 24 Hz) in the mid-infrared spectral region.
L. Joly, O. Coopmann, V. Guidard, T. Decarpenterie, N. Dumelié, J. Cousin, J. Burgalat, N. Chauvin, G. Albora, R. Maamary, Z. Miftah El Khair, D. Tzanos, J. Barrié, É. Moulin, P. Aressy, A. Belleudy   +15 more
doaj   +1 more source

Conformational Landscapes in the Ground and Excited States Dictate Circularly Polarized Excimer Emission: A Thermodynamic–Kinetic Interplay in Carbazole Dimer Systems

Angewandte Chemie, EarlyView.
Covalently linked carbazole dimers exhibit intense excimer‐based circularly polarized luminescence (CPL). A simple propylene‐tethered dimer achieves glum ≈ 0.01 in the violet region—among the highest for small organic emitters without heavy atoms. Conformational mapping reveals CPL is governed by thermodynamic/kinetic control of emissive conformers ...
Tomohiro Kujime, Zhe Wang, Tadashi Mori
wiley   +2 more sources

Tethered satellite opportunity

Eos, Transactions American Geophysical Union, 1984
The National Aeronautics and Space Administration (NASA) and the Piano Spaziale Nazionale of the Consiglio Nazionale Delle Ricerche of Italy (PNS/CNR) are inviting researchers to participate in the first three flights of the Tethered Satellite System (TSS) on the space shuttle. The Tethered Satellite, a joint Italian/U.S.
openaire   +1 more source

Nanobody‐Conjugated Theranostic Prodrug Targeting αvβ3 Integrin Enables Precision Cancer Therapy With Real‐Time Imaging

Advanced Healthcare Materials, EarlyView.
The image shows a schematic form a nanobody‐conjugated theranostic prodrug (NBD) platform targeting tumor‐associated αvβ3 integrin. The NBD system integrates selective nanobody‐mediated tumor recognition, glutathione‐responsive disulfide cleavage for doxorubicin release, and aza‐BODIPY‐based near‐infrared fluorescence for real‐time imaging.
Sanu Karan, Hyunseung Lee, Rema Naskar, Mi Young Cho, Hye Sun Park, Eun Hee Han, Soumyadip Hore, Sun Hee Cho, Truc Ngoc Kim Lam, Taewoong Son, Tae Jung Park, Inkyu Hwang, Jonathan L. Sessler, Kwan Soo Hong   +13 more
wiley   +1 more source

Strategies Toward Accessing Enantioenriched (Hetero)Benzo‐Fused 5‐ and 6‐ Membered Rings via Intermolecular Carbometalation

Angewandte Chemie, EarlyView.
The use of transition‐metal catalysts and design of chiral ligands have allowed chemists to access highly functionalized benzofused 5‐ and 6‐ membered rings in high yield and enantioselectivity. A common strategy used relies on an intermolecular carbometalation across alkynes and olefins, usually followed by a subsequent intramolecular carbometalation.
Clara Jans, Armaan Grewal, Xavier Abel‐Snape, Mark Lautens   +3 more
wiley   +2 more sources

The flight of the tethered satellite system

Eos, Transactions American Geophysical Union, 1992
The first Tethered Satellite System (TSS‐1) Electrodynamics Mission is scheduled for launch aboard the space shuttle ST‐46 on July 31, 1992, as a joint mission between the United States and Italy. A 500‐kg, 1.6‐m‐diameter satellite, attached to the shuttle by a thin (.24 cm), conducting, insulated wire (tether), will be reeled upwards from the orbiter ...
Dennis Papadopoulos, Adam Drobot, Nobie Stone   +2 more
openaire   +2 more sources

Three-Body Dynamics and Self-Powering of an Electrodynamic Tether in a Plasmasphere [PDF]

, 2010
The dynamics of an electrodynamic tether in a three-body gravitational environment are investigated. In the classical two-body scenario the extraction of power is at the expense of orbital kinetic energy.
Bombardelli C., C. Bombardelli, Colombo G., D. Curreli, D. Scheeres, Dobrowolny M., E. C. Lorenzini, Farquhar R. W., Gabriel S. B., Gilchrist B. E., J. Pelaez, M. Lara, M. Sanjurjo-Rivo, Misra A. K., Peláez J., Peláez J., Peláez J., Peláez J., Penzo P., Sanjurjo-Rivo M., Sanmartín J. R., Shampine L. F., Szebehely V., Wong B.   +23 more
core   +2 more sources