Results 21 to 30 of about 55,047 (246)

Research on Sensor Based on Optical Fiber Sensing for Acoustic Remote Detection

Cejing jishu
In view of the problems faced by traditional acoustic long-range detection tools in logging, such as “can not going down, uncertainty and data discontinuity”, the research on acoustic long-range detection technology based on optical fiber sensing is ...
HE Quanlong, CHEN Tao, SUN Shaowei, CHEN Wenhui, LIU Guoquan, WANG Shuihang, HAN Zhao, LU Wanting, CHEN Xiaoan   +8 more
doaj   +1 more source

Single-Sand Configuration Technology of Horizontal Wells Based on Depositional Models Constraints

Cejing jishu, 2023
As one of the earliest development areas in Tarim oilfield, the TI oil group in L10 well area has entered the middle and high water cut stage. The sedimentary system is complex, and the reservoir sedimentary facies change quickly.
ZHOU Jingping, LI Ning, ZHENG Xiaomin, LI Jianjun, XU Ning, LI Zhihong   +5 more
doaj   +1 more source

A Method of Productivity Prediction for Multi-Fractured Horizontal Well

Cejing jishu, 2023
The reservoir of horizontal wells in a block of Junggar basin is tight and highly heterogeneous. After large-scale volume fracturing by classification and clustering, there is a large difference in production.
YANG Fan, GAO Yanwu, SHAO Guanghui, LIU Jieli, XU Rui, ZHOU Jufeng   +5 more
doaj   +1 more source

Incidence and Outcome of Infants With Cancer in Canada: A Report From Cancer in Young People in Canada Database

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Infants with cancer are rare and face unique challenges. Our study aims to describe the incidence of infantile cancers in Canada and to compare treatment‐related mortality (TRM) and their outcomes with those of older children. Methods We conducted a retrospective cohort study using the Cancer in Young People in Canada database ...
Samuel Sassine, Hallie Coltin, Maria Kondyli, Monia Marzouki, Nicolas Prud'homme, Nida Usmani, Sylvia Cheng, Lesleigh Abbott, Tony Truong, Sapna Oberoi, Ketan Kulkarni, Josée Brossard, Lynette Bowes, Paul Gibson, Donna L. Johnston, Sarah McKillop, Roona Sinha, Lillian Sung, Catherine Vezina, Laura Wheaton, Alexandra P. Zorzi, Marie‐Claude Pelland‐Marcotte, Thai Hoa Tran   +22 more
wiley   +1 more source

Real-Time Estimation Method of P-Wave Slowness Based on Kalman Filtering and STC

Cejing jishu
The real-time extraction of acoustic interval time is of significant importance for rapidly evaluating reservoir quality and timely optimizing exploration and development decisions.
SUN Hao, CHEN Wenhui, SUN Xuekai, YU Weidong, LI Siyi, ZHAO Peng   +5 more
doaj   +1 more source

Evaluating the Genetic Overlap Between Congenital Heart Disease and Neuroblastoma Risk

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Children with congenital heart disease (CHD) have elevated neuroblastoma (NB) risk, potentially due to shared neural crest origins. We analyzed rare exonic de novo single‐nucleotide variants in 702 CHD and 454 NB trios from the Neuroblastoma Epidemiology in North America Study, Gabriella Miller Kids First Program, and a published cohort. Seven
Ji Yun Tark, Alexander Renwick, Yao Yu, Aniko Sabo, Andrew F. Olshan, Sharon E. Plon, Chad D. Huff, Philip J. Lupo   +7 more
wiley   +1 more source

Method for Evaluating Formation Fracturing Effect Utilizing Array Acoustic Logging

Cejing jishu
Fracturing of unconventional oil and gas reservoirs is an effective means to increase oil and gas recovery rate of tight reservoirs. It is also an important part of subsequent exploration and development of oil and gas fields.
LI Siyi, CHEN Wenhui, SUN Xuekai, JIANG Liming, GOU Yanhong, SUN Hao, SHI Peng, WEN Rou   +7 more
doaj   +1 more source

RT‐PCR–Based Detection of Bone Marrow Involvement in Ewing Sarcoma: Diagnostic Validity and Prognostic Relevance

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background In Ewing sarcoma (EwS), metastases, including those to bone marrow (BM), are the main factors influencing prognosis. Although reverse transcription polymerase chain reaction (RT‐PCR) offers greater sensitivity, the current EWING protocol defines BM metastases solely using light microscopic detection.
Thanh Pham, Andreas Ranft, Victor Rechl, Susanne Jabar, Wolfgang Hartmann, Kim Falkenberg, Heribert Jürgens, Norbert Graf, Torsten Keßler, Markus Metzler, Thomas Klingebiel, Thorsten Simon, Martin Benesch, Uta Dirksen   +13 more
wiley   +1 more source

Theoretical Research and Simulation Experiment Analysis on Heat Transfer of Logging Tools

Cejing jishu
In order to ensure the deep development of oil exploration, improve the temperature and pressure resistance indicators of logging tools, and solve the problem of thermal failure of logging tools circuits, this article focuses on the theoretical research ...
WANG Dongyu, ZHANG Chongru, WANG Xiaodong, WANG Jun, ZHANG Dingjie, CHEN Wenhui   +5 more
doaj   +1 more source

Approximating Bin Packing within O(log OPT · Log Log OPT) Bins [PDF]

2013 IEEE 54th Annual Symposium on Foundations of Computer Science, 2013
For bin packing, the input consists of n items with sizes s_1,...,s_n in [0,1] which have to be assigned to a minimum number of bins of size 1. The seminal Karmarkar-Karp algorithm from '82 produces a solution with at most OPT + O(log^2 OPT) bins. We provide the first improvement in now 3 decades and show that one can find a solution of cost OPT + O ...
openaire   +2 more sources