Results 11 to 20 of about 3,561,324 (265)

A new approach for post-fracturing evaluation and productivity prediction based on a reservoir fracability index model in shale gas reservoirs

Journal of Petroleum Exploration and Production Technology, 2023
Multistage fracturing technology is the primary means of reservoir stimulation in shale gas wells. However, the productivity contribution of each stage varies greatly.
Shanyong Liu, Nai Cao, Yishan Lou, Yuan Yuan   +3 more
doaj   +1 more source

1-Bit Matrix Completion [PDF]

, 2014
In this paper we develop a theory of matrix completion for the extreme case of noisy 1-bit observations. Instead of observing a subset of the real-valued entries of a matrix M, we obtain a small number of binary (1-bit) measurements generated according ...
Berg, Ewout van den, Davenport, Mark A., Plan, Yaniv, Wootters, Mary   +3 more
core   +1 more source

Flow Field and Pressure Loss Characteristics at Rotary Drillstring Joints

Geofluids, 2023
A thorough understanding and accurate calculation of the annulus pressure losses are paramount to drilling design and construction. However, due to the influence of the drillstring rotation and the abrupt dimensional variation at the joint, it is ...
Minghu Nie, Yuchen Ye, Zheng Wang, Dandan Yuan, Xingyi Wang, Kai Wei   +5 more
doaj   +1 more source

Completion of continuity spaces with uniformly vanishing asymmetry [PDF]

, 2014
The classical Cauchy completion of a metric space (by means of Cauchy sequences) as well as the completion of a uniform space (by means of Cauchy filters) are well-known to rely on the symmetry of the metric space or uniform space in question.
Chand, Alveen, Weiss, Ittay
core   +1 more source

Optimization in task--completion networks [PDF]

, 2007
We discuss the collective behavior of a network of individuals that receive, process and forward to each other tasks. Given costs they store those tasks in buffers, choosing optimally the frequency at which to check and process the buffer. The individual
Cobham A, Gross D, Hull J C, Kleban S D, L Dall’Asta, M Marsili, Milgram S, P Pin, Peskir G, Wilf H S   +9 more
core   +1 more source

Completing 3D Point Clouds of Thin Corn Leaves for Phenotyping Using 3D Gridding Convolutional Neural Networks

Remote Sensing, 2023
Estimating the complete 3D points of crop plants from incomplete points is vital for phenotyping and smart agriculture management. Compared with the completion of regular man-made objects such as airplanes, chairs, and desks, the completion of corn plant
Ying Zhang, Wei Su, Wancheng Tao, Ziqian Li, Xianda Huang, Ziyue Zhang, Caisen Xiong   +6 more
doaj   +1 more source

Theory completion using inverse entailment [PDF]

, 2000
The main real-world applications of Inductive Logic Programming (ILP) to date involve the "Observation Predicate Learning" (OPL) assumption, in which both the examples and hypotheses define the same predicate.
Bryant, CH, Muggleton, SH
core   +2 more sources

Mapping completeness [PDF]

IUCrJ, 2021
Tchoń & Makal [IUCrJ (2021), 8, 1006-1017] use numerical simulations to explore the dependence of data completeness on crystal orientation, X-ray energy and diamond anvil cell geometry for high-pressure diffraction experiments. Their completeness heat maps for different Laue classes can be used to guide optimization of high-pressure single-crystal ...
openaire   +3 more sources

Variants of Plane Diameter Completion [PDF]

, 2015
The {\sc Plane Diameter Completion} problem asks, given a plane graph $G$ and a positive integer $d$, if it is a spanning subgraph of a plane graph $H$ that has diameter at most $d$.
Golovach, Petr A., Requilé, Clément, Thilikos, Dimitrios M.   +2 more
core   +7 more sources

Metric completion versus ideal completion

Theoretical Computer Science, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Majster-Cederbaum, Mila, Baier, Christel
openaire   +3 more sources