Results 121 to 130 of about 172,189 (335)

Dynamic model and control of a new quadrotor unmanned aerial vehicle with tilt-wing mechanism [PDF]

, 2008
In this work a dynamic model of a new quadrotor aerial vehicle that is equipped with a tilt-wing mechanism is presented. The vehicle has the capabilities of vertical take-off/landing (VTOL) like a helicopter and flying horizontal like an airplane ...
Aksit, Mahmut Faruk, Akşit, Mahmut Faruk, Cetinsoy, Ertugrul, Gulez, Kayhan, Gülez, Kayhan, Kandemir, İlyas, Kandemir, Ilyas, Oner, Kaan Taha, Unel, Mustafa, Çetinsoy, Ertuğrul, Öner, Kaan Taha, Ünel, Mustafa   +11 more
core  

Mesenchymal Stem Cell‐Derived Extracellular Vesicles Modulate the Course of Peritoneal Inflammation Through Metabolic and Epigenetic Regulation

Advanced Science, EarlyView.
MSC‐EVs alleviate peritoneal inflammation and fibrogenesis by disrupting the H3K18la‐CCL2 axis and crosstalk between mesothelial cells and Ly6c2⁺ macrophages. Model cartoons are constructed using the Biorender website (https://www.biorender.com/), and a usage license is obtained. Abstract Peritoneal dialysis (PD), as a renal replacement therapy, relies
Qiang Huang, Yuxiang Sun, Pengpeng Kuang, Juan Sun, Dandan Guo, Long Peng, Hu Zhou, Qinrong Song, Zhihao Huo, Canming Li, Janusz Witowski, Zhaoyong Hu, Hui Peng   +12 more
wiley   +1 more source

Design, Modeling, and Geometric Control on SE(3) of a Fully-Actuated Hexarotor for Aerial Interaction [PDF]

, 2017
In this work we present the optimization-based design and control of a fully-actuated omnidirectional hexarotor. The tilt angles of the propellers are designed by maximizing the control wrench applied by the propellers.
Engelen, Johan, Kuipers, Petra, Rashad, Ramy, Stramigioli, Stefano   +3 more
core   +1 more source

Mars Science Helicopter Conceptual Design [PDF]

, 2020
Robotic planetary aerial vehicles increase the range of terrain that can be examined, compared to traditional landers and rovers, and have more near-surface capability than orbiters. Aerial mobility is a promising possibility for planetary exploration as
Balaram, Jayarao, Chan, Athena, Chi, Cheng, Datta, Anubhav, Escobar, Daniel, Fehler, Mireille E., Grip, Havard F., Johnson, Wayne R., Koning, Witold J., Kuang, Winnie, Lumba, Ravi, Malpica, Carlos, Tuano, Allysa Mae B., Tzanetos, Theodore, Withrow, Shannah N., Young, Larry A.   +15 more
core   +1 more source

Human Atlas of Tooth Decay Progression: Identification of Cellular Mechanisms Driving the Switch from Dental Pulp Repair Toward Irreversible Pulpitis

Advanced Science, EarlyView.
Tooth decay progression transforms the dental pulp response from repair to fibrosis. At early stages, stromal cells reprogram to repair the extra cellular matrix (ECM), blood vessels, and nerves, remodel and grow, keeping repair possible. In advanced decay, hypoxia, and vessel regression, in complement with an immune switch, fuel nerve degeneration and
Hoang Thai Ha, Sofya Kosmynina, Amandine Verocq, Keremsah Ozen, Ines Tekia, Hugo Bussy, Marie Ramirez, Dima Sabbah, Chloe Goemans, Valerie Vandenbempt, Esteban N. Gurzov, Sumeet Pal Singh, Nicolas Baeyens   +12 more
wiley   +1 more source

Measurement of rotor blade deformations of wind energy converters with laser scanners [PDF]

, 2013
M. Grosse-Schwiep, Johannes Piechel, Thomas Lühmann   +2 more
openalex   +1 more source

Effect of blade planform variation on the forward-flight performance of small-scale rotors [PDF]

An investigation was conducted in the Glenn L. Martin Wind Tunnel to determine the effect of blade planform variation on the forward-flight performance of four small-scale rotors.
Althoff, Susan L., Green, Michael D., Noonan, Kevin W., Samak, Dhananjay K.   +3 more
core   +1 more source

Single‐Nucleus Multi‐Omics Reveals Hypoxia‐Driven Angiogenic Programs and Their Epigenetic Control in Sinonasal Squamous Cell Carcinoma

Advanced Science, EarlyView.
Single‐nucleus multi‐omics profiling of sinonasal squamous cell carcinoma unveils a hypoxia‐driven angiogenic axis. A specific hypoxic tumor subpopulation orchestrates endothelial tip cell differentiation via epigenetically regulated ADM and VEGFA secretion.
Chaelin You, Jaewoo Park, Jung Yeon Jang, Junho Noh, Jaehyun Lee, Geunho Kwon, Myeong Sang Yu, Yoo‐Sam Chung, Seung‐Jun Lee, Keunsoo Kang, Jihwan Park, Ji Heui Kim, Kyuho Kang   +12 more
wiley   +1 more source

Effect of purge air on rotor endwall heat transfer of an axial turbine [PDF]

, 2017
Sebastiano Lazzi Gazzini, Rainer Schädler, Anestis I. Kalfas, Reza S. Abhari, Sebastian Hohenstein, Gregor Schmid, Ewald Lutum   +6 more
openalex   +1 more source

Investigating Mitochondrial Viscosity in Ferroptosis‐Mediated Drug‐Induced Liver Injury using a Double‐Targeted Strategy

Advanced Science, EarlyView.
Utilizing a mitochondrial double‐targeted strategy, a novel near‐infrared fluorescent probe (FTZ‐2) is established for monitoring viscosity variations in ferroptosis‐mediated drug‐induced liver injury. In summary, this work provided a practical strategy for the early diagnosis and evaluation of liver injury.
Yongqing Zhou, Yan Wang, Bing Huang, Hosoowi Lee, Mei Yan, Juyoung Yoon   +5 more
wiley   +1 more source