Selection of a low temperature filler for deep holes in the Antarctic ice sheet In deep drilling through the East Antarctic Ice Sheet it is essential to maintain stability of the hole wall under increasing hydrostatic pressure and pres... BB Kudryashov,VK Chistyakov,VM Pashkevich,... 被引量:...
Examines the factors that affect the trade deficits in the U.S. Value of goods and services imported and exported by the U.S. in 2004; Increase in shares of foreign competitors in the U.S. markets; Relationship between the U.S. dollar and trade deficit; View of economists on trade ...
In the lane retention stage, the empty top distance and the wall filling deformation make the top plate further rotate and sink, the high-strength filler is embedded in the bottom plate, the bottom drum is serious, and the bias stress distribution pattern is obvious [17, 18]. The ...
. The hole periodicity should be (2p)(λ/n), where p is an integer (See Additional Information for discussion on this point). Further if w is the wall thickness between the two holes, the periodicity can be written as the sum of the hole size and the wall thickness, thus the optimal...
PDI is the leader in quality assurance systems for deep foundations, pile driving, continuous flight auger analysis
[34] proposed the preparation of a concrete belt with high thermal conductivity on the borehole wall to strengthen the heat transfer of DBHEs. They reported that compared with traditional cementing methods, this approach improved the heat transfer of DBHEs by 1.27 times. Li et al. [35] ...
Deep-rooted agricultural crops can potentially utilize deep soil moisture to reduce periods where growth is water limited. Chicory (Cichorium intybus L.) i
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5, the coupling member 182 conforms to the inner wall of the ear canal 190 and is affixed to the outer portion of the body portion 134. The coupling member 182 provides an airtight seal or substantially airtight seal in the ear canal 190. The seal limits the transmission of sound into ...