Results 161 to 170 of about 945,774 (394)

Cold machining of high density tungsten and other materials [PDF]

, 1969
Cold machining process, which uses a sub-zero refrigerated cutting fluid, is used for machining refractory or reactive metals and alloys.
Ziegelmeier, P.
core   +1 more source

Understanding Postdeposition Treatments of Hole‐Transporting Self‐Assembling Molecules for Perovskite/Silicon Tandem Solar Cells

Advanced Functional Materials, EarlyView.
The influence of postdeposition treatments on the formation of self‐assembling (mono)layers commonly utilized as hole transport layers in perovskite‐based solar cells is thoroughly investigated. The implementation of a washing step and an annealing step at temperatures exceeding the current literature standards leads to an enhanced layer quality and ...
Jann B. Landgraf, Yashika Gupta, Adi Prasetio, Stefan Lange, Christoph Messmer, Christian Schwarz, Oliver Fischer, Sithisak Chanthalavong, Oussama Er‐raji, María B. Camarada, Stefaan De Wolf, Patricia S. C. Schulze, Anna Fischer, Stefan W. Glunz, Juliane Borchert   +14 more
wiley   +1 more source

Simulation and solution of a proppant migration and sedimentation model for hydraulically fractured inhomogeneously wide fractures

Energy Exploration & Exploitation
The distribution of proppant during hydraulic fracturing may directly contribute to the flow conductivity of the proppant fracture, so research on the migration and sedimentation of proppant in the fracture and the final distribution pattern is of great ...
Xiong Peiqi, Sun Lin, Feipeng Wu, Song Aili, Zhou Jiyong, Li Xuguang, Li Haozhe   +6 more
doaj   +1 more source

Enhancing Deposit Exploitation Efficiency Utilizing Small-Diameter Radial Boreholes via Hydraulic Drilling Nozzles for Optimal Resource Recovery

Applied Sciences
The exploration and development of new hydrocarbon deposits is facing increasing challenges as the global shift to renewable energy sources, such as shallow geothermal deposits, wind farms, and photovoltaics, reduces the dependence on hydrocarbons.
Przemyslaw Toczek, Rafal Wisniowski
doaj   +1 more source

Chuck for delicate drills [PDF]

, 1972
Development of oil film technique to couple power between drive spindle and drill chuck for delicate drilling operations is discussed. Oil film permits application of sufficient pressure, but stops rotating when drill jams.
Copeland, C. S.
core   +1 more source

Expedition 306 summary

, 2006
The overall aim of the North Atlantic paleoceanography study of Integrated Ocean Drilling Program Expedition 306 is to place late Neogene–Quaternary climate proxies in the North Atlantic into a chronology based on a combination of geomagnetic ...
Aboud, Essam, Acton, Gary D., Akimoto, Kazumi, Alvarez Zarikian, Carlos A., Bailey, Ian, Bjørklund, Kjell R., Evans, Helen, Fang, Nianqiao, Ferretti, Patrizia, Gruetzner, Jens, Guyodo, Yohan J.B., Hagino, Kyoko, Harris, Robert, Hatakeda, Kentaro, Hefter, Jens Norbert, Higgins, Sean M., Judge, Shelley A., Kanamatsu, Toshiya, Kulhanek, Denise K., Nanayama, Futoshi, Nielsen, Simon H.H., Ohno, Masao, Rashid, Harunur, Sierro Sanchez, Francisco J., Stein, Ruediger, Voelker, Antje, Zhai, Qiumin   +26 more
core   +1 more source

Artificial Intelligence‐Driven Development in Rechargeable Battery Materials: Progress, Challenges, and Future Perspectives

Advanced Functional Materials, EarlyView.
AI is transforming the research paradigm of battery materials and reshaping the entire landscape of battery technology. This comprehensive review summarizes the cutting‐edge applications of AI in the advancement of battery materials, underscores the critical challenges faced in harnessing the full potential of AI, and proposes strategic guidance for ...
Qingyun Hu, Junyuan Lu, Jian Hui, Ziyuan Rao, Yang Ren, Hong Wang   +5 more
wiley   +1 more source

3D Concrete Printing of Triply Periodic Minimum Surfaces for Enhanced Carbon Capture and Storage

Advanced Functional Materials, EarlyView.
A 3D‐printable and carbon‐capturing concrete is developed by replacing cement with diatomaceous earth (DE), which enhances rheology, provides hierarchical porosity, and serves as a nucleation site for carbonation. Maximum absorption of 488.7 gCO2 kgcement−1 is achieved in 7 days, a 142% increase over conventional concrete, and the triply periodic ...
Kun‐Hao Yu, Teng Teng, So Hee Nah, Hua Chai, Yefan Zhi, Kun‐Yu Wang, Yinding Chi, Peter Psarras, Masoud Akbarzadeh, Shu Yang   +9 more
wiley   +1 more source

Record of deep-well drilling for 1904 [PDF]

, 1905
Myron L. Fuller, Samuel Sanford
openalex   +1 more source

PENERAPAN METODE PEMBELAJARAN KOOPERATIF SNOWBALL DRILLING UNTUK MENINGKATKAN HASIL BELAJAR MATA PELAJARAN SISTEM PEMINDAH TENAGA KOMPETENSI MEMELIHARA TRANSMISI KELAS XI TEKNIK KENDARAAN RINGAN SMK NEGERI 1 GANTIWARNO, KLATEN TAHUN AJARAN 2010/2011 [PDF]

, 2011
Penelitian ini bertujuan untuk meningkatkan hasil belajar siswa dengan memperbaiki proses pembelajaran dalam mata pelajaran sistem pemindah tenaga kompetensi memelihara transmisi melalui metode pembelajaran snowball drilling dan mengetahui seberapa besar
Agung Cipto, Pratomo
core