INTRODUCTION There are various treatment modalities to remove the black patches of melanin pigmentation. The aim of the study is to clinically compare the diode laser ablation and surgical stripping technique for gingival depigmentation and to evaluate their effect on the histological changes in melanocyte activity. MATERIALS AND METHODS A total of 40 sites of 20 patients with bilateral melan...

Metropolitan area ring networks can be categorized into metro edge and metro core rings. The traffic characteristics of metro edge and metro core rings are quite different. While metro edge rings exhibit a strongly hubbed traffic pattern (hot spots), traffic demands in metro core rings are much more uniform. We examine the throughput-delay performance of a buffer insertion ring with destination...

This study aims to evaluate the application of ultrafiltration technology for separation particles and oil droplets recovery ammonia from hydrothermal liquefaction (HTL) wastewater. Real HTL wastewater municipal sewage sludge was used in this study. Experiments were carried out using a submerged polyethersulfone membrane with molecular weight cutoff 100 kDa combination air stripping addition ac...

Excess chemical and natural fertilizer could create eutrophication of surface waters then depletion the quality water. The present study aimed to survey removal efficiency ammonia from aqueous solution using modified clinoptilolite air stripping process optimization variables by response methodology. Clinoptilolite was obtained Semnan (Northeast Iran) with sodium chloride (to an adsorbent unifo...

An important application of 3-D converted P to S-waves (PS-waves) is to exploit S-wave birefringence (splitting) for delineating reservoir fractures. In azimuthally anisotropic media, fracture intensities and orientations are directly related to traveltime differences between the fast and slow S-wave and the polarization direction of the fast S-wave, respectively. Analysis techniques to help ch...