Results 111 to 120 of about 617,554 (343)

The Effect of Drill Design Elements on Drilling Characteristics when Drilling Bone

Journal of Biomechanical Science and Engineering, 2010
Twist drills are often used to prepare implant sites for the internal fixation of fractures, and the stability of the fixation, which depends directly on how securely the implants are held, depends on the quality of the bone around the pilot holes after implant site preparation.
Toshiaki Hara, Tadamaru Ueda, Kenichi Hasegawa, Yasuyuki Endo, Takanori Hasegawa, Yoshihiro Takikawa, Atsushi Wada   +6 more
openaire   +4 more sources

Transforming Cellulose Into Functional Three‐Dimensional Structures

Advanced Functional Materials, EarlyView.
Cellulose is promising for replacing synthetic polymers due to its excellent mechanical properties and low cost. This review highlights the recent advancements in transforming cellulose into functional 3D structures, including liquid gels and porous materials.
Xia Sun, Hao Sun, Penghui Zhu, Yonggang Wu, Anna Palmer, Feng Jiang   +5 more
wiley   +1 more source

Study on micro drilling of printed circuit board using DLC coated drill

Nihon Kikai Gakkai ronbunshu, 2017
In recent years, needs for micro drilling are increasing, accompanying the development of higher wiring density of printed circuit board (PCB). When drilling PCB for the purpose of making the electric through holes, it has been said that the drill ...
Hiromi YOSHIMURA, Kyohei HORITA, Yukiyoshi HOSHI, Katsuhiro NAGASAWA   +3 more
doaj   +1 more source

Drilling system design project 1967: final report of frame design committee [PDF]

, 1967
This report outlines the recommendations of the Frame Design Committee for the final design of the machine, each major part of the structure being considered individually in the following sections : 1. Worktables 2. Guide and Slideways 3.
Morrison, W., Sutcliffe, R. S.
core  

Use of sulphitic liquid to reduce the resistance of quartzose rocks to drilling [PDF]

, 1949
Emilie Lemaire
openalex   +1 more source

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

Advanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth, Verena Streibel, Oliver Bienek, Sergej Levashov, Johannes Dittloff, Kristof Möller, Johanna Eichhorn, Matthias M. May, Ian D. Sharp   +8 more
wiley   +1 more source

Wood wasp inspired space and earth drill [PDF]

, 2010
In this chapter, we explain why the low gravity encountered on Mars or on the Moon and the low mass of the probes, landers and rovers that carry drilling devices limit classical drilling techniques.
Coste, Pierre, Gao, Yang, Gouache, Thibault, Gourinat, Yves   +3 more
core  

Control of Turnip Flea Beetle by Benzene Hexachloride drilled with the Seed [PDF]

, 1950
H. R. Jameson
openalex   +1 more source

Rationally Designed Carbon Nanomaterials for Electrically Driven Solid‐State Hydrogen Storage

Advanced Functional Materials, EarlyView.
A bottom‐up design principle integrating atomic‐level and nanoscale structural engineering is developed to guide the rational design of electrically tunable, solid‐state hydrogen storage materials that enable non‐dissociative chemisorption under applied electric fields.
Yong Gao, Panyu Gao, Chao Li, Qiuyan Yue, Qing Liang, Sifan Qiao, Wei Zhang, Weitao Zheng, Lipeng Zhang, Zhenglong Li, Wen‐Gang Cui, Xiaowei Wang, Yiyang Wan, Mingchang Zhang, Xinqiang Wang, Yanxia Liu, Fulai Qi, Chenchen Li, Jian Miao, Jing Zhang, Xiao Han, Pan Wang, Chang Guo, Qiao Chen, Ziyuan Xu, Mingxia Gao, Wenping Sun, Yaxiong Yang, Jian Chen, Zhenhai Xia, Hongge Pan   +30 more
wiley   +1 more source

Drill/borescope System for the Mars Polar Pathfinder [PDF]

The primary goals of the Mars Polar Pathfinder (MPP) Discovery Mission are to characterize the composition and structure of Mars' north polar ice cap, and to determine whether a climate record may be preserved in layers of ice and dust.
Paige, D. A., Vasavada, A. R., Wood, S. E.   +2 more
core   +1 more source