نتایج جستجو برای: drill mud

تعداد نتایج: 12315  

2016
J-H Choi J-B Lim D D Wickramanayake Y Wagley J Kim H-C Lee H G Seo T-H Kim J-W Oh

MUDENG (Mu-2-related death-inducing gene, MuD) is revealed to be involved in cell death signaling. Astrocytes, the major glial cell type in the central nervous system, are a source of brain tumors. In this study, we examined MuD expression and function in human astroglioma cells. Stimulation of U251-MG cells with tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) resulted in a 40% ...

2016
Ghassan Hassan B. S. Yilbas Syed A. M. Said N. Al-Aqeeli Asif Matin

Mud formed from environmental dust particles in humid ambient air significantly influences the performance of solar harvesting devices. This study examines the characterization of environmental dust particles and the chemo-mechanics of dry mud formed from dust particles. Analytical tools, including scanning electron microscopy, atomic force microscopy, energy dispersive spectroscopy, particle s...

2012
Dong-Yan Liu Chuan-Sheng Wu

With increasing production of red mud, the environmental problems caused by it are increasingly serious, and thus the integrated treatment of red mud is imminent. This article provides an overview of the composition and the basic characteristics of red mud. The research progress of safe stockpiling and comprehensive utilization of red mud is summarized. The safe stockpiling of red mud can be di...

2012
M. H. Kahloon M. F. Iqbal M. Farooq Liaqat Ali M. Fiaz

The conservation technologies and traditional techniques were evaluated at Adaptive Research Farm Gujranwala Pakistan during Rabi 2007-2008 and 2008-2009. The sowing techniques evaluated were broadcasting (T-1), Rotary Tillage Drill (T-2), Zero Tillage Drill (T-3) and Rabi Drill (T-4). Rotary Tillage Drill showed significantly high germination count (220.50 m -2 ) followed by Rabi Drill (211.50...

1996
Alastair Robertson

Drilling during Ocean Drilling Program Leg 160 (April–May, 1995) revealed important new evidence concerning the internal composition, depositional processes, and age of two mud volcanoes within the Mediterranean Ridge accretionary complex. Holes were drilled at ca. 2000 m water depth on the crest areas, across the flanks of the mud volcanoes, and onto adjacent deep-sea sediments. The main depos...

Journal: :Journal of Petroleum Exploration and Production Technology 2022

Abstract The oil-based mud is preferred to drill highly technical and challenging formations due its superior performance. However, the inadequate chemical thermal stability of conventional additives have greatly influenced performance at high-temperature conditions. Therefore, it critical design an with that withstand improve nanoparticles emerged as alternative can significantly enhance rheol...

Journal: :Journal of alternative and complementary medicine 2007
Ersin Odabasi Husamettin Gul Enis Macit Mustafa Turan Oguzhan Yildiz

OBJECTIVE Mud, which contains organic and mineral ingredients, is used for the treatment of several degenerative diseases. It has been proposed that beneficial effects of mud are not only related to its local thermal effects, but also to its chemical components. Unlike hydrophilic components, the lipophilic components of the mud extract have not been described precisely thus far. Thus, we aimed...

2012
Bo Wun Huang

The dynamic model of a drill in drilling process was proposed and investigated in this study. To assure a good drilling quality, the vibration variation on the drill tips during high speed drilling is needed to be investigated. A pre-twisted beam is used to simulate the drill. The moving Winkler-Type elastic foundation is used to characterize the tip boundary variation in drilling. Due to the v...

Journal: :Current Biology 2015
Evan B. Dewey Desiree Sanchez Christopher A. Johnston

Multicellular animals have evolved conserved signaling pathways that translate cell polarity cues into mitotic spindle positioning to control the orientation of cell division within complex tissue structures. These oriented cell divisions are essential for the development of cell diversity and the maintenance of tissue homeostasis. Despite intense efforts, the molecular mechanisms that control ...

2001
Bramley Murton Juliet Biggs

Mud volcanoes, ranging in size between 50cm and 800m high, are found both on land and in submarine environments. Their variation in height and shape reflects the driving forces building them and the physical properties of their materials. The driving force behind the construction of mud volcanoes is overpressure of fluidised mud at depth within the sediment column. Although some component of ov...

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