Results 61 to 70 of about 3,273 (253)
Optimization Design Method for Multistage Completion String of Shunnan Ultra-Deep Horizontal Well
Shiyou jixie, 2019 To address the problem of ultra-high pressure ultra-high temperature and difficult completion string design in the ultra-deep horizontal wells in Shunnan in the north slope of Tazhong, a set of optimization design methods for ultra-deep horizontal well ...
He Tong +4 more
doaj
Measuring the effect of airway pressure on pulmonary arterial diameter in the intact rat lung [PDF]
, 2003 To study the relationship between transpulomnary pressure (Ptp), intravascular pressure (Pv), and the pulmonary arterial tree structure, morphometric measurements of pulmonary arterial trees were made in intact lungs from Sprague-Dawley rats.
Dawson, Christopher A +3 more
core +1 more source
American Journal of Botany, EarlyView.Abstract Premise Flowers that present their anthers and stigma in close proximity can achieve precise animal‐mediated pollen transfer, but risk self‐pollination. One evolutionary solution is reciprocal herkogamy. Reciprocity of anther and style positions among different plants (i.e., a genetic dimorphism) is common in distylous plants, but very rare in
Steven D. Johnson +5 more
wiley +1 more source
Metode Desain Vdi 2221 Untuk Merancangskid Mpfm Single Line [PDF]
, 2018 MPFM (Multi Phase Flow Meter) is an on field tools to measure the flow and compotition of crude oil during mud logging process. This tool unit operated beside logging well area so the result can be obtained directly on site.
S.T., M.T., Rudi Kurniawan Arief,
core
3D Hydrogel Cell Cultures and Their Biomedical Applications
Advanced NanoBiomed Research, EarlyView.The review highlights the advantages of hydrogel‐based 3D cell cultures over traditional 2D models. These hydrogels closely mimic natural cellular environments, improving research in tissue engineering, drug discovery, cancer studies, and neuroscience.
Tri Lan Thai +7 more
wiley +1 more source
Research of the Locating-Sub Hanging Technology for Velocity String
Shiyou jixie, 2019 After workover of low-yield gas wells in Qinghai, the existing velocity string snubbing technology has such problems as requiring additional special hanger, the main valve failed, and the wellhead and operation process needing reconstruction.
付悦 +6 more
doaj
Finite element modeling of a metal tubing hanger seal
МОДЕЛИРОВАНИЕ, ОПТИМИЗАЦИЯ И ИНФОРМАЦИОННЫЕ ТЕХНОЛОГИИслужбы данного оборудования, закладываемый техническим заданием, может достигать 20 и более лет. Чтобы гарантировать безопасность процесса подводной добычи на всем периоде эксплуатации оборудования, в рамках проектирования важно уделять особое внимание характеристикам герметичности и прочности металлических уплотнений.
openaire +1 more source
Pulmonary arterial remodeling revealed by microfocal x-ray tomography [PDF]
, 2001 Animal models and micro-CT imaging are useful for understanding the functional consequences of, and identifying the genes involved in, the remodeling of vascular structures that accompanies pulmonary vascular disease.
Dawson, Christopher A +4 more
core +1 more source
Advanced NanoBiomed Research, EarlyView.This study examines the influence of boron‐doped mesoporous bioactive glass nanoparticles (MBGN) blended in cast and 3D‐printed pre‐crosslinked alginate‐dialdehyde‐gelatin (ADA‐GEL). Addition of 0.5% and 1% MBGN did not negatively affect the viability of human umbilical vein endothelial cells (HUVECs), or the sprouting of HUVEC spheroids.
Rafael Schmid +12 more
wiley +1 more source
Development Status of Subsea Christmas Tree
Shiyou jixie, 2016 The key to the development of subsea tree is whether it can meet the requirement by the relevant standards and specifications in pressure circulation test, high and low temperature circulation test, load circulation test and external high pressure test ...
Wang Yu +6 more
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