The empirical model of ionospheric irregularities based on ROTI data is actually for space weather studies and transionospheric radio propagation applications, i.e., estimation, specification, and prediction of the probability and area of ionospheric irregularity development and their dependence on solar and geomagnetic activity.
It shows that there is a good correlation between TQI index and the area of track irregularity spectrum, when using MATLAB programming to analyze the power spectrum and TQI, Therefore, Jianbing Li [6] gave a suggestion that the track irregularity power spectrum should be one of the main factors to control the speed of the track quality.
Magnetic resonance imaging (MRI) is useful for staging OCD lesions, evaluating the integrity of the joint surface, and distinguishing normal variants of bone formation from OCD by showing bone and cartilage edema in the area of the irregularity.
This was evident in our case because oesophagus was patent on upper gastrointestinal endoscopy except an area of mucosal irregularity which could not explain the degree of dysphasia in our patient.
An area of epithelial irregularity was noted under the operating microscope at the start of one case and this had not been present when the patient had been examined at the slit lamp earlier that day.
Type VI pit patterns are further subdivided into areas of mild irregularity (type VI mild) and areas of severe irregularity, which exhibit destroyed and badly damage pits (type VI severe).
On plain films, these appear as small radiololucent saucer-shaped lesions or areas of cortical irregularity with an associated sclerotic base, typically at the posteromedial aspect of the distal femoral condyle (Fig. 11).
Difficulties of CR for a detail evaluation of wrist joints are mainly due to a projectional superimposition of bones in this complicated anatomical area, high irregularities of the bone margins (e.g. at level of ligaments attachment) and the presence of nutritive foramina that can appear like erosions.
More specifically, the computed border-based features were the Area of the lesion, the Border Irregularity, the Border Thinness Ratio, and the Border Asymmetry.
Data is presented as a plot of Area versus Nuclear Irregularity Index (NII), which separates nuclei considering its morphometric phenotype.
