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The weather patterns of Texas, United States are analyzed over a multi-year period. In this analysis, multiple graphical and computational methods are used to determine accurate forecasting for the state. Forecasting accuracy is achieved through graphical methods of Q-Q plots, time series studies, Holt-Winters filtering, forecasting, autocorrelation, seasonal ARIMA, moving average, and exponential smoothing. Model accuracy is validated using computational methods of correlation, p-value, t-value, and error analysis.

In sheet metal forming processes, one of the main problems is the occurrence of springback/negative springback which can be influenced by various factors. A number of research scientists have conducted valuable investigation on springback phenomenon. However, the negative springback problem has rarely been investigated. In this study, the effect of geometric and non-geometric parameters such as sheet thickness, sheet anisotropy, and punch tip radius on the springback/negative springback phenomena was investigated using the finite element method (FEM) and experiment in V-die bending of CK67 anisotropic steel sheet. The two approaches illustrated the occurrence of negative springback in smaller punch tip radii of the punch. Also, variations of springback and negative springback angle versus punch tip radius were shown. It was observed that increasing the sheet thickness results in a decrease in the springback and negative springback angle. Furthermore, it was shown that by increasing the bending orientation to the rolling direction, the amount of yield stress, springback, and negative springback angle increased.

Purpose To identify clinical characteristics associated with outcomes of treatment for persistent fetal vasculature (PFV) based on a modified classification.Methods In this noncomparative case series, 54 eyes of 47 consecutive patients with PFV managed from 1981 until 1998 at a tertiary eye hospital were reviewed. Pars plicata lensectomy and vitrectomy was performed in 34 eyes and translimbal lensectomy and vitrectomy in five. Fifteen eyes were managed non-surgically. The following outcomes were measured: 1) “Visual improvement”, defined as at least one Zipf's category improvement of best corrected final vision as compared with initial visual acuity, provided that final vision of CSUM (central, steady, unmaintained) equal to 20/100–20/30 was obtained. 2) “Cosmetic acceptability”, defined as the absence of the following: small orbit, externally small appearing eye with microcornea and hypotony, eye deviation more than 35 prism diopters without strabismus surgery and corneal opacity.Results Six eyes were inoperable. In 10 out of 33 operated eyes (30.3%) improvement of vision was obtained including four eyes with an anterior form and six eyes with a combined form of PFV. In univariate analysis, factors such as anterior form of PFV, surgery in the combined form and having a normal retina, had a weak association with a higher chance of visual improvement. In multivariate regression analysis the likelihood of unacceptable cosmetic appearance was higher in females than males (OR = 10.5), and in bilateral cases (OR = 7.9). Offspring of consanguineous marriages had more severe forms of PFV.Conclusions Although visual potential is limited in PFV, some eyes with an anterior or combined form and normal retina achieved improvement of visual acuity after surgery. However, statistically no single factor except sex and bilateral PFV (for cosmetic unacceptability) reliably predicted the results of treatment. Therapy should be individualized based on clinical findings. Genetic studies in offspring of consanguineous marriages with PFV may prove informative.