Results 41 to 50 of about 519,021 (315)

Development and Application of Drilling Shock Absorption and Stabilization Tool

Shiyou jixie
During drilling in medium to deep strata， the complexity and poor drillability of these formations may lead to buckling and jumping of drilling tool， resonance fatigue of drill string， and low drilling efficiency.
Guan Yanlei, Zhao Jincheng, Liu Xiaojun, Chen Jie, Liu Huawei, Chen Liwei, Ren Zhiwei   +6 more
doaj   +1 more source

Geothermal studies - Yellowstone National Park /test site 11/, Wyoming [PDF]

, 1968
Summary report of diamond drilling in thermal areas of Yellowstone National Park, and method for determining heat flow in thermal ...
Fournier, R. O., Muffler, L. J. P., Truesdell, A. H., White, D. E.   +3 more
core   +2 more sources

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

Molecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff, Manuela Moritz, Dennis Eggert, Anna Worthmann, Joerg Heeren, Henrike Zech, Till S. Clauditz, Waldemar Wilczak, Hartmut Schlüter, Christian S. Betz, Arne Böttcher, Jan Hahn   +11 more
wiley   +1 more source

Comparing the Effect of Semi‐Immersive Virtual Reality, Computerized Cognitive Training, and Traditional Rehabilitation on Cognitive Function in Multiple Sclerosis: A Randomized Clinical Trial

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Cognitive impairment is a common non‐motor symptom in Multiple Sclerosis (MS), negatively affecting autonomy and Quality of Life (QoL). Innovative rehabilitation strategies, such as semi‐immersive virtual reality (VR) and computerized cognitive training (CCT), may offer advantages over traditional cognitive rehabilitation (TCR ...
Maria Grazia Maggio, Desiree Latella, Lilla Bonanno, Paulo Cezar Rocha dos Santos, Marcos Maldonado‐Díaz, Meir Plotnik, Rosaria De Luca, Angelo Quartarone, Rocco Salvatore Calabrò   +8 more
wiley   +1 more source

Diagnostic Use of Testing for Novel Murine Autoantibodies for Sjögren Disease in the Rheumatology Outpatient Setting

Arthritis Care &Research, EarlyView.
Objective The goal was to assess the diagnostic performance of three novel autoantibodies (NA) for Sjögren disease (SjD) by comparing NA prevalence in patients with SjD, other autoimmune rheumatic diseases (ARDs), nonspecific chronic sialadenitis (CS), and controls.
Chadwick R. Johr, Michael D. George, Vatinee Y. Bunya, Nora Sandorfi, Mina Massaro‐Giordano, Frederick B. Vivino   +5 more
wiley   +1 more source

Control technology of drilling fluid performance in horizontal directional crossing of Tongming Strait by product pipeline

You-qi chuyun, 2021
As the environmental protection requirements for surrounding sea areas of Tongming Strait are high, the crossing strata are complex and changeable, the underground fresh water and sea water appear alternately, the crossing section is long with large ...
Yuguang MING, Chuanfu WANG, Qiang LAN, Hui LI, Zhendong LIU, Shuquan LYU   +5 more
doaj   +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  

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +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