Results 11 to 20 of about 513,317 (192)
Dynamiques environnementales, 2015 In the epic search for a Northwest Passage, the narratives of explorers often described the Arctic landscape as picturesque or sublime, depending on the place, the circumstances, and the seasons. Ships that carried those intrepid explorers through this new world had ominous names such as the Terror and Erebus, that dark place between Earth and Hell. As
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Late Winter Foraging by Honeybees (Hymenoptera: Apidae) at Sapsucker Drill Holes [PDF]
, 2017 Observations of Apis mellifera foraging at sapsucker drill holes were made during February 1988 in southwestern Virginia. Foraging bouts were dependent upon temperature; more bees visited drill holes when ambient temperatures exceeded 10oC. Honeybees did
Williams, Charles E
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Optimalisasi Penggunaan Metode Drill Pada Pembelajaran Gitar Pemula
Promusika: Jurnal Pengkajian, Penyajian, dan Penciptaan Musik, 2018 Tujuan penelitian ini adalah untuk mendeskripsikan optimalisasi pembelajaran gitar pemula melalui metode drill dan mendeskriksikan dampak metode drill dalam meningkatkan keterampilan guru TK pada materi teori dasar dan praktik bermain gitar pemula ...
Itot Bian Raharjo
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Creation of promising technologies for producing holes in parts of a high-frequency ion engine
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2022 The article considers application areas of various machining methods for perforating holes in parts with unpredictable surface fluctuations. The most effective methods of obtaining holes in parts of a high-frequency ion engine are shown.
A. Yu. Ryazantsev +2 more
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Energy Efficiency Improvements in Dry Drilling with Optimised Diamond-Like Carbon Coating [PDF]
, 2008 We demonstrate enhancements of performance and energy efficiency of cutting tools by deposition of diamond-like carbon (DLC) coatings on machine parts. DLC was deposited on steel drill bits, using plasma enhanced chemical vapour deposition (PECVD) with ...
A.W. Anson +16 more
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An impedance approach to reduce the contact-instability whilst drilling with active heave compensation [PDF]
, 2012 The bit-bounce, or contact-instability, phenomenon which occurs in the drill string suspended from a floating vessel with an active drill string compensator to maintain a steady weight on the drill bit is investigated.
Dunnigan, Mathew Walter, Hatleskog, Jan
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Kinestetik, 2018 Penelitian ini bertujuan untuk mengetahui apakah ada pengaruh latihan drill terhadap kemampuan servis backhand bulutangkis siswa MTs Tarbiyah Islamiyah, Kecamatan Air Napal, Bengkulu Utara.
Feber Kholison +3 more
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Study on the Structure and Tribological Behavior of Zn - Ni Coating by Pack - Cementation [PDF]
Cailiao Baohu, 2021 In order to improve the friction and wear properties of 45 steel’s surface surface, a Zn - Ni coating was prepared on 45 steel’s surface by pack - cementation method.
ZHANG Jin, LIN Yuan - hua, GUO Meng - xin, XIANG - Huan, RAN Xue - lin, HUANG Min
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Feasibility study of a hand guided robotic drill for cochleostomy [PDF]
, 2014 The concept of a hand guided robotic drill has been inspired by an automated, arm supported robotic drill recently applied in clinical practice to produce cochleostomies without penetrating the endosteum ready for inserting cochlear electrodes. The smart
Brett, P +5 more
core +6 more sources
Fault Detection of Electric Impact Drills and Coffee Grinders Using Acoustic Signals
Sensors, 2019 Increasing demand for higher safety of motors can be noticed in recent years. Developing of new fault detection techniques is related with higher safety of motors.
Adam Glowacz
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