Results 51 to 60 of about 96,603 (255)

Human Brain Vasculature‐on‐a‐Chip Model Constructed With Microvessels Isolated From Cryopreserved Postmortem Human Brain Tissue

Advanced Healthcare Materials, EarlyView.
This manuscript describes the cultivation of viable microvessels from cryopreserved human brain tissue. When embedded in hydrogels and cultured in microfluidic devices, these microvessels exhibit complex architectures reminiscent of arterioles and capillaries, can be perfused, and display intact barrier function. Collectively, these results demonstrate
Brian J. O'Grady, A. Scott McCall, Samuel Cullison, Daniel Chavarria, Matthew S. Schrag, Ethan S. Lippmann   +5 more
wiley   +1 more source

Type of construction and making of CNC milling machine because of pattern making [PDF]

, 2013
Bakalářská práce se zabývá návrhem a realizací modelářské CNC frézky. V první části jsou popsány možnosti konstrukčního řešení malých CNC strojů. Druhá část popisuje návrh a realizace vlastní CNC frézky.
Knapil, Josef
core  

Accuracy control of contour milling on CNC machines [PDF]

Mechanics and Advanced Technologies, 2018
The possibility of checking the accuracy of contours directly on a CNC machine equipped with a three-axis contact probe is proved. The technique of accuracy control of parts contours is presented, which is based on three-coordinate contact probe measurements according to the developed control program using standard CNC commands with automatic data ...
Petrakov, Y., Shuplietsov, D.
openaire   +4 more sources

A Synovium‐on‐Chip Platform to Study Multicellular Interactions in Arthritis

Advanced Healthcare Materials, EarlyView.
The Synovium‐on‐Chip comprises a thin microporous PDMS membrane to support co‐culture of fibroblast‐like synoviocytes (FLS), THP‐1‐derived macrophages, and endothelial cells, enabling real‐time analysis of synovial‐vascular interactions. FLS migration through the pores drives endothelial remodeling, while TNF‐α stimulation induces robust inflammatory ...
Laurens R. Spoelstra, Fleur R. Semmekrot, Nuno Araújo‐Gomes, Daniël Wijnperle, Monique M. A. Helsen, Martijn H.J. Van Den Bosch, Loes. I. Segerink, Séverine Le Gac, Marcel Karperien   +8 more
wiley   +1 more source

Redesign of milling machine X-Graph 650 CNC [PDF]

, 2011
Tato bakalářská práce se zabývá redesignem frézky X-Graph 650 CNC firmy KNUTH Werkzeugmaschinen GmbH. Součástí práce je popis konstrukčního řešení stroje včetně volby materiálů, návrh konstrukce nového stroje dle základních konstrukčních výpočtů hlavních
Michele, Jiří
core  

Artificial Symbiosis for Bulk Production of Bacterial Cellulose Composites

Advanced Materials, EarlyView.
Co‐cultivation of the cellulose‐producing bacterium with the microalga enables bulk formation of bacterial cellulose under static incubation, with photosynthetically active oxygen‐generating sites throughout the medium. This symbiotic platform supports 3D cellulosic constructs with geometries dictated by the vessel shape.
Kui Yu, Sing Teng Chua, Ran Zhao, Alyssa Smith, Michael Kühl, Alison G. Smith, Tom Ellis, Silvia Vignolini   +7 more
wiley   +1 more source

Optimization of Grinding Parameters for Minimum Grinding Time When Grinding Tablet Punches by CBN Wheel on CNC Milling Machine

Applied Sciences, 2019
Cutting regime parameters play an important role in determining the efficiency of the grinding process and the quality of the ground parts. In this study, the influences of the cutting parameters, including the cutting depth (ae), the feed rate (Fe) and ...
N. Vu, Q. Nguyen, T. Tran, H. Le, Anh-Tuan Nguyen, Anh-Tung Luu, Van-Tung Nguyen, Xuan-Hung Le   +7 more
semanticscholar   +1 more source

Reliable Deep Learning and IoT-Based Monitoring System for Secure Computer Numerical Control Machines Against Cyber-Attacks With Experimental Verification

IEEE Access, 2022
This paper introduces a new intelligent integration between an IoT platform and deep learning neural network (DNN) algorithm for the online monitoring of computer numerical control (CNC) machines.
Minh-Quang Tran, Mahmoud Elsisi, Meng-Kun Liu, Viet Q. Vu, Karar Mahmoud, Mohamed M. F. Darwish, Almoataz Y. Abdelaziz, Matti Lehtonen   +7 more
doaj   +1 more source

Milling tools for CNC machine tools [PDF]

, 2009
V této bakalářské práci jsou popsány frézovací nástroje pro CNC obráběcí stroje. První kapitola je zaměřena na CNC frézky a CNC obráběcí centra. Hlav-ní pohled je upírán na zásobníky a typy nástrojů pro CNC stroje.
Vampola, Lukáš
core  

Multiplexed Luminal Tissue Constructs with Reconfigurable Barriers for Dynamic Modeling of Multi‐Tissue Interactions

Advanced Materials Technologies, EarlyView.
This study describes the fabrication of arrays of luminal tissue constructs for 3D luminal tissue modeling. An oil or media‐filled reservoir between constructs serves as a liquid barrier or bridge to regulate communication between lumens within the array for modeling multi‐tissue interactions in vitro. Abstract Cell‐lined luminal structures are crucial
Mouhita Humayun, José A. Jiménez‐Torres, Chao Li, Jose M. Ayuso, Karina Lugo‐Cintron, Joseph Ulbrich, Benjamin Myers, Sheena C. Kerr, Adeel Ahmed, David J. Beebe   +9 more
wiley   +1 more source