Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Xiaodong Ju"'
Publikováno v:
Orthopaedic Surgery, Vol 15, Iss 9, Pp 2393-2399 (2023)
Objective Hip arthroscopy has recently appeared as a successful therapy in treating borderline developmental dysplasia of the hip (BDDH). This study aimed to describe the minimal 2‐year follow‐up after hip arthroscopy for patients with BDDH in th
Externí odkaz:
https://doaj.org/article/21309ef23e354956b6f89f44b15baa5a
Publikováno v:
Orthopaedic Surgery, Vol 15, Iss 4, Pp 947-952 (2023)
Objective Hip preservation surgery has expanded to include treatment of hip pathology in elderly patients. Most data on efficacy of arthroscopy treatment in patients with femoroacetabular impingement syndrome (FAIS) has been generated from Western po
Externí odkaz:
https://doaj.org/article/254c487fc6c543bf961a70d368fcae53
Publikováno v:
Sensors, Vol 23, Iss 8, p 3928 (2023)
Acoustic logging instruments generate high voltages in the order of thousands of volts. Electrical interferences are thus induced by high-voltage pulses that affect the logging tool and make it inoperable owing to damaged components in severe cases.
Externí odkaz:
https://doaj.org/article/5d744c628c2f4d3b84ff3e20aeb1144d
Publikováno v:
Sensors, Vol 21, Iss 24, p 8489 (2021)
To increase the accuracy of reservoir evaluation, a new type of seismoelectric logging instrument was designed. The designed tool comprises the invented sonde-structured array complex. The tool includes several modules, including a signal excitation
Externí odkaz:
https://doaj.org/article/a2bbbe9c4271440aa5fecb43b3f2b5ed
Publikováno v:
Sensors, Vol 19, Iss 15, p 3273 (2019)
To improve the performance of acoustic logging tool in detecting three-dimensional formation, larger and more complicated transducer arrays have been used, which will greatly increase the difficulty of fault diagnosis during tool assembly and mainten
Externí odkaz:
https://doaj.org/article/81384aff80814c43a25fe9fa9135c577
Publikováno v:
Earth Sciences Research Journal, Vol 20, Iss 1 (2016)
In this paper, the test-bench for sonic logging tool is proposed and designed to realize automatic calibration and testing of the sonic logging tool. The test-bench System consists of Host Computer, Embedded Controlling Board, and functional boards.
Externí odkaz:
https://doaj.org/article/f238456e24d44c51897b9b130b25d576
Publikováno v:
Energies, Vol 11, Iss 3, p 515 (2018)
External exhaust gas recirculation (EGR) stratification in diesel engines contributes to reduction of toxic emissions. Weak EGR stratification lies in that strong turbulence and mixing between EGR and intake air by current introduction strategies of
Externí odkaz:
https://doaj.org/article/7b7d8fb3f5af4a31a3a456d903f8c90e
Publikováno v:
Energies, Vol 10, Iss 11, p 1888 (2017)
In-cylinder exhaust gas recirculation (EGR) stratification, generally achieved by supplying EGR asymmetrically into intake ports on a four-valve diesel engine, is sensitive to trapped exhaust gas in the intake manifold and intake ports that is caused
Externí odkaz:
https://doaj.org/article/27c4c3dbd81a4bcc92dae954515666e2
Publikováno v:
Sensors, Vol 17, Iss 6, p 1351 (2017)
A logging-while-drilling (LWD) caliper is a tool used for the real-time measurement of a borehole diameter in oil drilling engineering. This study introduces the mechanical structure and working principle of a new LWD caliper based on ultrasonic dist
Externí odkaz:
https://doaj.org/article/e2c1548693174695b3c10f9bfb28e101
Publikováno v:
Petroleum Science. 17:1272-1280
Acoustic waves enter a rock formation from a borehole and are reflected or scattered upon encountering a geologic structure. Consequently, we obtain the structure location represented by the azimuth and distance from the borehole using the acoustic r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b38562f56ccb5dc060e778bfcce0043
https://doi.org/10.1007/s12182-020-00475-5
https://doi.org/10.1007/s12182-020-00475-5