Hao Qin's research while affiliated with Southwest University and other places
What is this page?
This page lists the scientific contributions of an author, who either does not have a ResearchGate profile, or has not yet added these contributions to their profile.
It was automatically created by ResearchGate to create a record of this author's body of work. We create such pages to advance our goal of creating and maintaining the most comprehensive scientific repository possible. In doing so, we process publicly available (personal) data relating to the author as a member of the scientific community.
If you're a ResearchGate member, you can follow this page to keep up with this author's work.
If you are this author, and you don't want us to display this page anymore, please let us know.
It was automatically created by ResearchGate to create a record of this author's body of work. We create such pages to advance our goal of creating and maintaining the most comprehensive scientific repository possible. In doing so, we process publicly available (personal) data relating to the author as a member of the scientific community.
If you're a ResearchGate member, you can follow this page to keep up with this author's work.
If you are this author, and you don't want us to display this page anymore, please let us know.
Publications (4)
Accurate knowledge of flow behaviors of gas/water two-phase flow in pipeline is crucial to production optimization, production string selection, production logging interpretation, down-hole metering, and artificial lift design and modeling. In this study, two-dimensional simulation model of a large-diameter vertical pipe was established by using th...
The slip velocity between phases is an important parameter for evaluating the volumetric flow rate of each phase in vertical pipes. This paper presents an improved empirical correction for calculating the slip velocity of two-phase, oil-water bubble flows in large-diameter vertical pipes, based on a series of experimental tests. Water holdup data w...
In order to reduce noise in gamma-ray spectrum measured by carbon/oxygen logging instrument, an improved wavelet thresholding algorithm was proposed in this paper. This algorithm established a thresholding function with an adjustable parameter, which could obtain various filtering performances by means of different parameters, and then a modified g...
Citations
... In this method, WT is performed at first on the noisy signal to yield wavelet coefficients with various amplitudes. Normally, the energy of a response signal is mainly concentrated in the wavelet coefficients with large absolute values, while the energy of the random noises is usually hidden in the wavelet coefficients with small absolute values [50,51]. Therefore, an appropriate threshold is selected to ensure the absolute values of the wavelet coefficients are less than the predefined threshold and hence the target signal can be reconstructed according to the processed coefficients. ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/976584550920194-1609847309371_Q64/Guofeng-Yang.jpg)
