We investigate dendritic sidebranching during crystal growth in an undercooled melt by simulation of a phase-field model which incorporates thermal noise of microscopic origin. As a nontrivial quantitative test of this model, we first show that the simulated fluctuation spectrum of a one-dimensional interface in thermal equilibrium agrees with the exact sharp-interface spectrum up to an irrelev...

The spatial resolution of infrared thermometry is limited by diffraction to dimensions close to the wavelength of the collected infrared radiation, typically 5 μm at room temperatures. Thermal properties variations, temperature gradients, and defects with dimensions smaller than the diffraction limit are inaccessible to far-field infrared thermometry. This work demonstrates a near-field method ...

This paper reports the growth and spectral properties of Er(3+)-doped and Er(3+)/Yb(3+)-codoped Li(3)Ba(2)La(3)(WO(4))(8) crystals. The Er(3+): Li(3)Ba(2)La(3)(WO(4))(8) crystal with dimensions of 56 mm × 28 mm × 9 mm and Er(3+)/Yb(3+): Li(3)Ba(2)La(3)(WO(4))(8) crystal with dimensions of 52 mm × 24 mm × 8 mm were obtained by the top-seeded solution growth (TSSG) method. Thermal expansion coeff...

A dentigerous cyst is a benign lesion arising from the odontogenic epithelium associated with crown of an impacted tooth. They are radiolucent and unilocular, usually asymptomatic diagnosed in clinical routine or radiographic examinations. The lower third molars upper canines most affected teeth, also odontomas supernumerary teeth. slow-growing but can reach considerable dimensions, causing fac...

the histopathologic diagnosis of orbital and ocular adnexal lymphoproliferative lesions is difficult, resulting controversy in classification, determining benignity or malignancy of them and treatment modality selection. we designed the following study to evaluate clinical, histopathologic and if necessary immunochemical features of them in decreasing indeterminate cases. the study includes 51 ...

introduction: striae distensae (sd) are a frequent skin condition for which treatment remains a challenge. the 1540-nm non-ablative fractional laser (star lux 500) has been shown to improve atrophic scars by increasing the amount of dermal collagen. to assess the safety and efficacy of the star lux 500 laser in the treatment of mature hypopigmented striae in persian people (striae alba). method...

this case is a 19-year-old soldier who suffered a combined elbow dislocation and posterior monteggia fracture and dislocation (type ii). the ulna fracture was managed by orif. the elbow dislocation was managed by closed reduction and immobilization in 900 flexion. the posteriorly dislocated radial head was kept reduced by a transarticular pin. after 6 months elbow and forearm motion was restric...

We investigate AdS/CFT correspondence for two families of Einstein black holes in d ≥ 4 dimensions, modelling the boundary CFT by a free conformal scalar field and evaluating the boundary two-point function in the bulk geodesic approximation. For the d ≥ 4 counterpart of the nonrotating BTZ hole and for its Z2 quotient, the boundary state is thermal in the expected sense, and its stressenergy r...

Our recent work with cavitation enhanced heating has shown that cavitation used with ablation can improve heating efficiency yielding larger lesions. In this study, we hope to optimize the ultrasound parameters for cavitation enhanced (CE) heating, understand the mechanisms of lesion formation, examine the potential side effects, and develop methods for monitoring and controlling this therapy. ...

Basal cell carcinoma is a malignant epithelial neoplasm of the skin and most common human cancer. It generally associated with good prognosis. In this case report, giant basal nodulo-ulcerative type showing wide ulceration marginal multiple small nodules, presented. was trapezoidal in shape, having dimensions 7 cm at greatest width, 6 vertically different anterior posterior margin dimensions, 5...