Results 51 to 60 of about 265 (205)

PERSEPSI MASYARAKAT TENTANG ADANYA PEMBORAN AIR BERSIH CV. INDOGEO MANDIRI DRILL DI DESA MARADA KECAMATAN HU’U KABUPATEN DOMPU PROVINSI NUSA TENGGARA BARAT [PDF]

, 2022
Pemboran adalah kegiatan membuat lubang vertical ke dalam tanah. Dalam keadaan tertentu pemboran dapat juga dilakukan secara miring (directional drilling) atau disebut juga pemboran berarah.
Ilham, Darmawan
core  

Programmable 3D Photovoltaics via Mechanically Origami‐Coded Interlocked 3D Kirigami and Nano‐Root Anchored AgNWs–In–Ga Multiphasic Alloy Conductor

Advanced Materials, EarlyView.
Mechanically origami‐coded 3D kirigami photovoltaics convert a single extension–release cycle into deterministic self‐folding, reconfiguring planar solar cells into programmable 3D modules. Distinct coding strategies enable either ultrahigh stretchability (500% system strain) or ultrahigh initial effective areal coverage (225%).
Seok Joon Hwang, Jiwon Ryu, Byungsoo Kang, Injong Oh, Dae‐Hee Cho, YoungHoi Cho, Seung S. Lee, Dong Hoe Kim, Deokjae Choi, Gee Yeong Kim, Heesuk Jung, Taehee Kim, Hyeonggeun Yu, Seungjun Chung, Byoung Koun Min, Phillip Lee   +15 more
wiley   +1 more source

Research on Electromagnetic Telemetry Technology Application in Foam Directional Drilling

Shiyou jixie, 2016
Conventional mud pulse MWD transmits signal by using mud pulse wave which cannot be transmitted in the air and foam mud system.The electromagnetic MWD system provides an alternative to the transmission of information in compressible medium.The effects of
Wang Lishuang, Chen Xiaohui, Song Zhaohui, Wang Liyang, Zang Yanbin   +4 more
doaj  

Soft coal drilling technology and application based on air directional drilling

Journal of Physics: Conference Series
Abstract In China, there are many layers and a wide distribution of crushed soft coal seams, which are commonly characterized by complex structural stress, high gas pressure, and low mechanical strength of coal bodies. In response to the problems of hole collapse and spray during the drilling process of such coal seams, such as hole wall
openaire   +1 more source

The Successful Evolution of an LWD Rotary Steerable System for Air Drilling

, 2011
This paper will present the evolution of a third-generation, point-the-bit rotary steerable system (RSS) and its successful application for air drilling of directional wells and lateral intervals. There are a number of applications for air
Mark Smith, Denis Weisbeck, Scott Robert, Chris Hartley   +3 more
core   +1 more source

Evaluasi Penggunaan Casing J-55 Dengan Metode Maximum Load Berdasarkan Nilai Casing Pressure Pada Sumur Directional Drilling Lapangan X Sumur Z [PDF]

, 2020
AN EVALUATION OF THE USE OF THE J-55 CASING WITH A MAXIMUM LOAD METHOD BASED ON THE VALUE OF THE CASING PRESSURE ON THE DIRECTIONAL DRILLING WELL X FIELD Z WELL ILHAM FADHIL 133210433 ABSTRACT The main objective in drilling operations is to establish a ...
Fadhil, Ilham
core  

Advances in Magnesium‐Based Thermoelectrics: A Critical Review

Advanced Materials, EarlyView.
Magnesium‐based thermoelectric materials have emerged as promising candidates for low‐to‐mid‐temperature energy conversion due to their abundance, low cost, and competitive performance. This review summarizes recent advances in Mg3X2, MgAgSb, and Mg2X systems, covering transport mechanisms, fabrication strategies, stability challenges, and device ...
Li‐Min Zhang, Li Zhang, Nan‐Hai Li, Yan‐Ling Yang, Xiao‐Lei Shi, Zhi‐Gang Chen   +5 more
wiley   +1 more source

Study on Pre Pumping and Outburst Elimination Technology of “one hole and two elimination” in Bedding Directional Long Drilling

, 2021
Aiming at the problem of gas control in the working face and the roadway to be excavated at the same time due to the small construction length of bedding borehole under the condition of the occurrence of soft coal, a technology of "one hole and two ...
Yongjiang Zhang, Benqing Yuan
core   +1 more source

Ultrathin Li Metal Anodes: Quantitative Design Principles and Manufacturability Across Liquid and Solid‐State Batteries

Advanced Materials, EarlyView.
Ultrathin lithium metal anodes (≤15 µm) offer a promising route to high‐energy‐density batteries due to their high capacity and low potential. This review presents design principles for ultrathin Li, evaluates fabrication strategies, and discusses challenges in liquid and solid‐state cells.
Cheng Wang, Caoyu Wang, Shuixin Xia, Jodie A. Yuwono, Mingnan Li, Yanqiu Lyu, Ruizhi Zhang, Jun Wang, Jianfeng Mao, Zaiping Guo   +9 more
wiley   +1 more source

Tailoring Phonon‐Driven Responses in α‐MoO3 through Isotopic Enrichment

Advanced Materials, EarlyView.
ABSTRACT The implementation of polaritonic materials into nanoscale devices requires selective tuning of parameters to realize desired spectral or thermal responses. One robust material, α‐MoO3, an orthorhombic crystal boasting three distinct phonon dispersions, provides three polaritonic dispersions of hyperbolic phonon polaritons (HPhPs) across the ...
Thiago S. Arnaud, Ryan W. Spangler, Johnathan D. Georgaras, Jonah B. Haber, Daniel Hirt, Maximilian Obst, Gonzalo Álvarez‐Pérez, Mackey Long III, Felix G. Kaps, Jakob Wetzel, Courtney Ragle, John E. Buchner, Youngji Kim, Aditha S. Senarath, Richarda Niemann, Mingze He, Giulia Carini, Unai Arregui‐Leon, Akash C. Behera, Ramachandra Bangari, Nihar Sahoo, Niels C. Brumby, J. Michael Klopf, Martin Wolf, Lukas M. Eng, Susanne C. Kehr, Thomas G. Folland, Alexander Paarmann, Patrick E. Hopkins, Felipe Jornada, Jon‐Paul Maria, Joshua D. Caldwell   +31 more
wiley   +1 more source