Results 21 to 30 of about 52,290 (257)

3D printed alginate/gelatin-based porous hydrogel scaffolds to improve diabetic wound healing

Giant, 2023
Diabetic wounds are difficult to heal due to hampered vascularization and tissue regeneration. Wound dressings need frequent replacement and show limited effects on guiding tissue repair.
Zhaoyi Lin, Weike Xie, Zhenhua Cui, Jiana Huang, Hao Cao, Yan Li   +5 more
doaj   +1 more source

A sun sensor implemented with an asynchronous luminance vision sensor

ESSCIRC 2017 - 43rd IEEE European Solid State Circuits Conference, 2017
A sun sensor implemented with a spiking pixel matrix is reported. It is the very first one based on an asynchronous event-based pixel array. A paradigm associated to classic digital sun sensors is solved with this approach. Only pixels illuminated by the sun light are readout. Hence, the output data flow is quite reduced.
Juan A. Leñero-Bardallo, José María Guerrero-Rodríguez, Lukasz Farian, Ricardo Carmona-Galán, Ángel Rodríguez-Vázquez   +4 more
openaire   +4 more sources

BepiColombo fine sun sensor [PDF]

International Conference on Space Optics — ICSO 2012, 2017
Design, development and verification of the passive Fine Sun Sensor (FSS) for the BepiColombo spacecraft is described. Major challenge in the design is to keep the detector at acceptable temperature levels while exposed to a solar flux intensity exceeding 10 times what is experienced in Earth orbit. A mesh type Heat Rejection Filter has been developed.
Boslooper, E.C., Heiden, N. van der, Naron, D.J., Schmits, R., Velde, J.J. van der, Wakeren, J.M.O. van   +5 more
openaire   +2 more sources

Fish Capsules: A System for High‐Throughput Screening of Combinatorial Drugs

Advanced Science, 2022
Large‐scale screening of molecules heavily relies on phenotyping of small living organisms during preclinical development. However, deep profiling candidate therapeutics on whole animals typically requires laborious manipulations and anesthetic treatment
Minghui Tang, Xin Duan, Anqi Yang, Shijie He, Yajing Zhou, Yuxin Liu, Lu Zhang, Xuan Luo, Peng Shi, Honglin Li, Xudong Lin   +10 more
doaj   +1 more source

Space Radiation Effect on Si Solar Cells [PDF]

Journal of Astronomy and Space Sciences, 2008
High energy charged particles are trapped by geomagnetic field in the region named Van Allen Belt. These particles can move to low altitude along magnetic field and threaten even low altitude spacecraft.
Jae-Jin Lee, Young-Sil Kwak, Junga Hwang, Su-Chan Bong, Kyung-Seok Cho, Seongin Jeong, Kyunghee Kim, Han-Woo Choi, Young-Hwan Han, Yongwoon Choi, Baek-Il Seong   +10 more
doaj   +1 more source

On-orbit calibration of sun sensor’s central point error for triad

European Journal of Remote Sensing, 2020
In this paper, a novel sun sensor which has been applied on orbit since 2018 is introduced. The remote data transmitted from the satellite is analyzed to show its performance.
Xia Mu, Sihai Li, Haiyang Zhan, Zhuoran Yao   +3 more
doaj   +1 more source

Precision sun sensor: PSS [PDF]

International Conference on Space Optics — ICSO 1997, 2018
This paper, “Precision sun sensor: PSS," was presented as part of International Conference on Space Optics—ICSO 1997, held in Toulouse, France.
openaire   +1 more source

Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley   +1 more source

Attitude determination and control for centrifugal tether deployment on the ESTCube-1 nanosatellite; pp. 242–249 [PDF]

Proceedings of the Estonian Academy of Sciences, 2014
This paper presents the design, development, and pre-launch characterization of the ESTCube-1 Attitude Determination and Control System (ADCS). The design driver for the ADCS has been the mission requirement to spin up the satellite to 360 deg × s–1 ...
Andris Slavinskis, Erik Kulu, Jaan Viru, Robert Valner, Hendrik Ehrpais, Tõnis Uiboupin, Markus Järve, Endel Soolo, Jouni Envall, Tobias Scheffler, Indrek Sünter, Henri Kuuste, Urmas Kvell, Jaanus Kalde, Kaspars Laizans, Erik Ilbis, Tõnis Eenmäe, Riho Vendt, Kaupo Voormansik, Ilmar Ansko, Viljo Allik, Silver Lätt, Mart Noorma   +22 more
doaj   +1 more source

BCG vaccination potentiates oxidative phosphorylation in neonatal myeloid‐derived suppressor cells

FEBS Open Bio, EarlyView.
BCG vaccination enhances oxidative phosphorylation in neonatal MDSCs, impairing their immunosuppressive function. It upregulates electron transport chain genes and mitochondrial activity, increasing ATP and oxygen consumption. Pharmacological OXPHOS inhibition partially restores suppressive capacity, confirming causality.
Yingying Chen, Hui Li
wiley   +1 more source