Results 161 to 170 of about 922,436 (391)

Measuring and Interpreting High-Temperature Shear Strengths of Drilling Fluids [PDF]

, 1953
T.E. Watkins, M.D. Nelson
openalex   +1 more source

Study of sample drilling techniques for Mars sample return missions [PDF]

To demonstrate the feasibility of acquiring various surface samples for a Mars sample return mission the following tasks were performed: (1) design of a Mars rover-mounted drill system capable of acquiring crystalline rock cores; prediction of ...
Harris, P. T., Mitchell, D. C.
core   +1 more source

Low‐Loss Far‐Infrared Surface Phonon Polaritons in Suspended SrTiO3 Nanomembranes

Advanced Functional Materials, EarlyView.
The low‐loss, highly confined, and thickness‐tunable surface phonon polaritons are demonstrated in the far‐infrared regime within transferable freestanding SrTiO3 membranes, achieving high figures of merit comparable to the previous record values from the vdW materials.
Konnor Koons, Hans A. Bechtel, Javier Taboada‐Gutiérrez, Reza Ghanbari, Yueyin Wang, Stephanie N. Gilbert Corder, Alexey B. Kuzmenko, Ruijuan Xu, Yin Liu   +8 more
wiley   +1 more source

EXPLORATORY DRILLING FOR GROUNDWATER IN THE NARMADA VALLEY, MADHYA PRADESH, INDIA [PDF]

, 1957
Aniruddha Roy
openalex   +1 more source

Ultrasonic Planetary Core Drill: Overview and Results from Field Trial [PDF]

, 2017
In the effort to explore the subsurface of terrestrial bodies, we seek to obtain better samples from ever greater depths. Many organisations are working towards technologies that can achieve this goal whilst ensuring compatibility with the likely ...
Harkness, Patrick, Li, Xuan, Lucas, Margaret, Timoney, Ryan, Worrall, Kevin   +4 more
core  

Effects of Temperature Annealing on the Intrinsic Transport Mechanisms of Solution Processed Graphene Nanosheet Networks

Advanced Functional Materials, EarlyView.
Unravelling charge transport mechanisms in graphene nanosheet networks: by combining temperature‐dependent conductivity measurements with a Random Resistor Network model, this study identifies a transition from hopping‐dominated conduction to a band‐like transport mechanism.
Alessandro Grillo, Alejandro Toral‐Lopez, Damiano Marian, Aniello Pelella, Zixing Peng, Jingjing Wang, Enver Faella, Maurizio Passacantando, Antonio Di Bartolomeo, Gianluca Fiori   +9 more
wiley   +1 more source

Well Drilling and Latrine Construction in Rural Burma [PDF]

, 1954
Clarence J. Feldhake
openalex   +1 more source

Ternary Transistors With Reconfigurable Polarities

Advanced Functional Materials, EarlyView.
Polarity‐reconfigurable ternary transistors are demonstrated using black phosphorus homojunction with asymmetric contacts and split‐gate structures. Suppression of majority carrier injection, while Fowler–Nordheim tunneling of low‐density minority carriers persists, enables a well‐defined intermediate state with improved on/off ratios.
Dongju Yeom, Yeonghyeon Ko, Youngkyu Ko, Heungsoon Im, Jungi Song, Yongwook Seok, Hanbyeol Jang, Jaeha Hwang, Seokhun Jin, Kenji Watanabe, Takashi Taniguchi, Kayoung Lee   +11 more
wiley   +1 more source

Core drilling for coal in the Moose Creek area, Alaska [PDF]

, 1934
Gerald Ashley Waring
openalex   +1 more source

Supercompliant Lattice Boosts n‐type AgSbTe2 Thermoelectrics

Advanced Functional Materials, EarlyView.
The supercompliant lattice design enables the first realization of n‐type electrical transport in AgSbTe2 by overcoming intrinsic electron‐killer defects and exceeding the doping limits imposed by the conventional Hume–Rothery rule. Accordingly, the best performance n‐type Ag0.8Na0.3Sb0.6Bi0.4Te2 sample achieves a low κ of 0.27 W·m−1·K−1 that ...
Ruoyan Li, Shuai Han, Chunyu Zhang, Suyao Liu, Wen Yin, Yuanguang Xia, Pengfei Liu, Zhen‐Hua Ge, Dongyao Zhao, Bingchao Yang, Lulu Huang, Zhi Zhang, Yongsheng Zhang, Yuan Yu, Bangzhi Ge, Chongjian Zhou   +15 more
wiley   +1 more source