Results 51 to 60 of about 2,775 (244)

Thermal model for optimization of vascular laser tissue soldering

, 2010
Laser tissue soldering (LTS) is a promising technique for tissue fusion based on a heat-denaturation process of proteins. Thermal damage of the fused tissue during the laser procedure has always been an important and challenging problem.
Michael Reinert, Martin Frenz, Bogni, Serge, Stumpp, Oliver, Oliver Stumpp, Frenz, Martin, Reinert, Michael, Serge Bogni   +7 more
core   +1 more source

Vorticity‐Driven µ‐Platelet Rotation and Selective Packing for Vertical Thermal–Electrical Interconnects

Advanced Functional Materials, EarlyView.
We introduce a capillary‐filtering‐based particle‐filling (CFPF) process that simultaneously forms vertical thermal pathways and electrical vias within µ‐pores. In situ microfluidic analysis reveals that capillary‐driven velocity gradients generate vorticity that governs µ‐platelet rotation and vertical alignment.
Yujin Mun, Sang Gil Lee, Un‐seong Baik, Taeyoon Kwon, Jungyeon Kim, Joo Hwan Shin, Chanho Jeong, Jae‐seung Shim, Yeji Kim, Hyein Jung, Jin‐Tae Kim, Tae‐il Kim   +11 more
wiley   +1 more source

JOINIG OF MG ALLOY AZ31B BY SELECTED TECHNOLOGIES

Acta Polytechnica, 2019
This contribution presents metallurgical joining of Mg alloy AZ 31B by several technologies - Friction Stir Welding - FSW, Laser Beam Welding - LBW, soldering and their mutual comparison.
Tomáš Kramár, Petr Vondrouš, Miroslav Jáňa, Tomáš Kupec   +3 more
doaj   +1 more source

Localized Temperature Monitoring in Mouse Brain during Light Delivery via a Non‐Planar Tapered Fiber‐Integrated µRTD Sensor

Advanced Materials, EarlyView.
We report a multifunctional tapered optical fiber integrating a conformal micro‐resistance temperature detector (µRTD) for local, real‐time thermometry during optical stimulation. The platform combines light‐delivery and temperature sensing within a minimally invasive footprint, enabling detection of sub‐degree cortical heating under representative ...
Antonio Balena, Marco Bianco, Barbara Spagnolo, Muhammad Fayyaz Kashif, Alberto Bramati, Massimo De Vittorio, Ferruccio Pisanello   +6 more
wiley   +1 more source

Leaftronics: Bio‐Fractal Scaffolds From Leaf Venation for Low‐Waste Electronics

Advanced Materials, EarlyView.
“Leaftronics” transforms naturally evolved leaf venation into quasi‐fractal scaffolds for sustainable electronics. Polymer‐infiltrated leaf skeletons can be used to fabricate ultra‐smooth, reflow‐ and thin‐film‐compatible decomposable substrates, while making the same lignocellulose networks conducting results in flexible transparent electrodes.
Rakesh Rajendran Nair, Hrisheekesh Thachoth Chandran, Karl Leo, Hans Kleemann   +3 more
wiley   +1 more source

Laser-based soldering technique for hermetical sealing of the calibration target for the exomars' Raman instrument

, 2022
S.57-63We propose the laser-based Solderjet Bumping as a full inorganic joining technique for the hermetical sealing of a possible calibration target container for the ExoMars Raman Laser Spectrometer. This technique allows the adhesive free bonding in a
Seifert, M., Moral-Inza, A., Ribes, P., Lopez-Reyes, G., Burkhardt, T., Sansano, A., Lange, N.   +6 more
core  

Programmable 3D Photovoltaics via Mechanically Origami‐Coded Interlocked 3D Kirigami and Nano‐Root Anchored AgNWs–In–Ga Multiphasic Alloy Conductor

Advanced Materials, EarlyView.
Mechanically origami‐coded 3D kirigami photovoltaics convert a single extension–release cycle into deterministic self‐folding, reconfiguring planar solar cells into programmable 3D modules. Distinct coding strategies enable either ultrahigh stretchability (500% system strain) or ultrahigh initial effective areal coverage (225%).
Seok Joon Hwang, Jiwon Ryu, Byungsoo Kang, Injong Oh, Dae‐Hee Cho, YoungHoi Cho, Seung S. Lee, Dong Hoe Kim, Deokjae Choi, Gee Yeong Kim, Heesuk Jung, Taehee Kim, Hyeonggeun Yu, Seungjun Chung, Byoung Koun Min, Phillip Lee   +15 more
wiley   +1 more source

Automation of Robotic Laser Tissue Soldering for Minimally Invasive Surgery

Current Directions in Biomedical Engineering
Laser tissue soldering (LTS) represents a promising alternative to conventional suturing methods in minimally invasive surgery (MIS). This paper presents a novel robotic control framework that aims to automate the LTS approach.
Rolfs Martin, Männel Georg, Cipolato Oscar, Ernst Floris, Herrmann Inge K., Kundrat Dennis   +5 more
doaj   +1 more source

Optimization On Laser Soldering Parameters Onto Lead-Free Solder Joint [PDF]

, 2017
This paper presents the results of optimization on laser soldering parameters onto lead free solder joint. The objective of this study is to determine the laser power needed and scanning time required to produce a high quality of solder joint.
M., Ishak, Siti Rabiatull Aisha, Idris, T. J., Nabila   +2 more
core   +1 more source

Advances in Magnesium‐Based Thermoelectrics: A Critical Review

Advanced Materials, EarlyView.
Magnesium‐based thermoelectric materials have emerged as promising candidates for low‐to‐mid‐temperature energy conversion due to their abundance, low cost, and competitive performance. This review summarizes recent advances in Mg3X2, MgAgSb, and Mg2X systems, covering transport mechanisms, fabrication strategies, stability challenges, and device ...
Li‐Min Zhang, Li Zhang, Nan‐Hai Li, Yan‐Ling Yang, Xiao‐Lei Shi, Zhi‐Gang Chen   +5 more
wiley   +1 more source