Results 41 to 50 of about 21,426 (264)

Parafusos automacheantes: comparação mecânica no modelo artificial de osso e na vértebra cervical de carneiro Tornillos autoterrajante: comparación mecánica en el modelo artificial de hueso y en la vértebra cervical de oveja Self-tapping screws: mechanical analysis in the model of artificial bone and in the cervical sheep vertebra

Coluna/Columna, 2009
OBJETIVO: comparar o novo parafuso travado na placa cervical (CSLP) automacheante com o parafuso convencional cortical automacheante utilizado na fixação da placa cervical anterior, por meio da análise do torque de inserção e da resistência ao ...
Patrícia Silva, Rodrigo César Rosa, João Paulo Placo, Antonio Carlos Shimano, Francisco José Albuquerque de Paula, José Batista Volpon, Helton LA Defino   +6 more
doaj   +1 more source

Flexible Unusual Ternary‐Component Graded‐Modulus Dielectric Films with High‐Density Capacitive Energy Storage

Advanced Science, EarlyView.
Hierarchical PP–LSR107–BaTiO3 nanocomposite films are fabricated by one‐step extrusion and stretching for roll‐to‐roll manufacture, combining high energy storage and processing flexibility. LSR107 surrounds BaTiO3‐rich regions, locating amorphous PP, decreasing defects, and introducing deep traps that homogenize the electric field and suppress charge ...
Yi Gao, Xin‐Jie Wang, Lei Huang, Kun Xing, Baoquan Wan, Yan‐Hui Song, Jian‐Tao Wang, Li‐Juan Yin, Tong Liang, Yan Meng, Zunpeng Feng, Kai Huang, Ke Bi, Shao‐Long Zhong, Zhi‐Min Dang   +14 more
wiley   +1 more source

An Experimental Method to Determine the Interstitial Splitting Forces and Thermal Load Input Induced by Self-Tapping and Self-Drilling Bone Screws: A Pilot Study

, 2021
Background: The aim is to evaluate methods to quantify the interstitial splitting force and thermal load input of self-tapping and self-drilling osteosynthesis screws.
Ben Achour, Anas, Anita Mostofa, Petto, Carola, Meißner, Heike, Ihlenfeldt, Steffen, Teicher, Uwe, Lauer, Günter, Anas Ben Achour, Heike Meißner, Dominik Haim, Steffen Ihlenfeldt, Mostofa, Anita, Carola Petto, Uwe Teicher, Günter Lauer, Haim, Dominik   +15 more
core   +1 more source

Experimental Study on Seismic Performance of Dovetail Profiled Steel Concrete Composite Shear Walls with Self-Tapping Screw Connections. [PDF]

Materials (Basel)
To achieve the assembled connection between dovetail profiled steel sheets and the boundary members in dovetail profiled steel concrete composite shear walls (DPSCWs), self-tapping screws were employed.
Huang Z, Tan Y, Zhong Z, Zhang S, Guo L, Wang Y.   +5 more
europepmc   +2 more sources

Withdrawal Behavior of the Self-Tapping Screws in Bamboo/Wood-Oriented Strand Board

Forests
This study examines how screw diameter, penetration length, and aperture ratio affect self-tapping screw (STS) withdrawal resistance in bamboo/wood-oriented strand board (WOSB/BOSB) to increase bamboo use in construction and furniture.
Kaiting Zhang, Jun Zhang, Yonghong Guo, Yuxia Chen   +3 more
semanticscholar   +1 more source

Generation of Self‐Organizing Macrovascular Constructs by Bioprinting Human iPSC‐Derived Mesodermal Progenitor Cells

Advanced Science, EarlyView.
ABSTRACT Vascularization remains a major obstacle in tissue engineering. Here, we introduce a bioprinting strategy to generate centimeter‐scale, self‐organizing “mother vessel” constructs from iPSC‐derived hiMPCs. By optimizing bioink composition, printing was accomplished in a single‐step approach. Within one week, hiMPCs differentiated into both CD31+
Leyla E. Dogan, Nathaly A. Chicaiza‐Cabezas, Florian Kleefeldt, Philipp Wörsdörfer, Jürgen Groll, Süleyman Ergün   +5 more
wiley   +1 more source

The Influence of Residual Ion Drift During Programming of Chip‐Integrated Nanoscale HfO2‐Based Memristive Devices

Advanced Electronic Materials, EarlyView.
1T1R‐arrays combining filamentary‐type memristors and CMOS transistors offer great potential for energy‐efficient analog hardware accelerators. Here, transient SET analysis of nanoscale HfO2 memristors integrated on 180 nm CMOS wafers is discussed.
Oliver Artner, Felix Cüppers, Seokki Son, Yang Chen, Xiaohua Liu, Christopher Bengel, Dennis Nielinger, André Zambanini, Stefan Wiefels, Stephan Menzel, Regina Dittmann, Susanne Hoffmann‐Eifert   +11 more
wiley   +1 more source

Self‐Adhesive Conductive Elastomers for Gel‐Free Biopotential Recording

Advanced Electronic Materials, EarlyView.
σPOMaC, a self‐adhesive conductive citrate elastomer incorporating PEDOT:PSS and DBSA, enables gel‐free biopotential electrodes with stable conductivity and intrinsic skin adhesion. The composite exhibits low resistivity (∼ 0.02 Ω·cm), robust electrical performance during repeated use, and reliable on‐body ECG acquisition comparable to Ag/AgCl ...
Kirstie M. K. Queener, Alec Brewer, He Sun, Jack Twiddy, Vladimir A. Pozdin, Koji Sode, Alper Bozkurt, Michael Daniele   +7 more
wiley   +1 more source

FastCat: Autonomous Discovery of Multielement Layered Double Hydroxide Alloy Catalysts for Alkaline Oxygen Evolution Reaction

Advanced Intelligent Discovery, EarlyView.
A machine learning‐guided self‐driving laboratory screened over 500 nickel‐based layered double‐hydroxide catalysts for alkaline oxygen evolution. Out of the eight metals, the robot uncovered a quaternary Ni–Fe–Cr–Co catalysts requiring only 231 mV overpotential to reach 20 mA cm−2.
Nis Fisker‐Bødker, Enzo Raffaele Moretti, Jin Hyun Chang, Tejs Vegge   +3 more
wiley   +1 more source

Flexural Performance of Glued Laminated Timber Beams Reinforced by the Cross-Section Increasing Method

Buildings
This article addresses the problem of insufficient bearing capacity and stiffness in laminated timber beams during use and proposes a reinforcement method by increasing the cross-section.
Tong Wang, Xuetong Wang, Nan Guo, Mingtao Wu, Ziyang Wu, Mingyang Liang   +5 more
doaj   +1 more source