"introduced how to" is a correct and usable phrase in written English.
It is commonly used to indicate the act of teaching or showing someone how to do something. Example: The professor introduced how to properly conduct scientific research in his first lecture.
In [27], the authors also introduced how to get direction θ using gyroscope and compass in detail.
In section 4.2 and 4.3 we introduced how to divide a social network into sub-graphs, and then generalize these sub-graphs to nodes, then finally produce a generalized social network.
As shown in "Appendix 3", we have introduced how to determine the variables which are used to calculate dynamic reserve (OOIPSRV): {text{OOIP}}_{text{SRV}} = frac{1}{{c_{t} }}left( {frac{{t_{text{ca}} }}{{t_{text{cDd}} }}} right)_{text{match}} left( {frac{q/Delta p}{{q_{text{Dd}} }}} right)_{text{match}} (1 - S_{text{wi}} ) (19).
Here, we introduced how to extract the nonshadowed pixels by using the trained Gaussian darkening factor model. Figure 18 gave us the rules to calculate the difference between the mean of Gaussian model and the darkening factor, and check if the difference was smaller than 3 times of standard deviation.
This is because there is little scope to recoup any costs over the longer-term, so training remains low cost, delivered on-the-job, and predominantly at level 2. Fast forward to 2017 and the enduring problem appears to be same as in the mid-1990s when modern apprenticeships were first introduced: how to persuade more employers to offer apprenticeships at a higher level.
In China, the Ministry of Health launched The Job Specification of Preconception Care (Trial) in 2007, which elucidated the content of preconception care and introduced how to implement this service [ 13].
