sahand volcanic-sub-volcanic dome, along with several other magmatic domes in northwest iran and the southern part of tabriz fault show adakitic geochemical characteristics. sahand dome has mainly dacitic composition. the sio2 content and mg number of sahand dome range from 64 to 73 wt% and 27 to 57 respectively. sahand dome can be classified as high silica adakitic (hsa) type. the rocks studie...

We report the recovery and characterization of a new urban micrometeorite collection derived from rooftop an industrial building in Germany. identified 315 micrometeorites (diameter: 55–515 µm, size peak: ˜150 distribution slope exponent: −2.62). They are predominantly S-type cosmic spherules (97.2%) but also two G-type (0.6%), unmelted coarse-grained single-mineral micrometeorite, eight scoria...

Textures have been used in various applications, such as carpet quality control, region recognition in satellite images, and body painting control in the vehicle industry. This paper studies texture synthesis. We survey the algorithms for synthesizing textures that have proposed over the past two decades. A variety of algorithms associated with synthesized textures are given. The goal is to fur...

Many interesting real-world textures are inhomogeneous and/or anisotropic. An inhomogeneous texture is one where various visual properties exhibit significant changes across the texture’s spatial domain. Examples include perceptible changes in surface color, lighting, local texture pattern and/or its apparent scale, and weathering effects, which may vary abruptly, or in a continuous fashion. An...

In this paper we present modern texture mapping techniques and several applications of polynomial texture mapping in cultural heritage programs. We also consider some well‐known and some new methods for mathematical procedure that is involved in generation of polynomial texture maps.

Introduction: John Wood in his Masursky Lecture of 2001 made the case that many problems in meteoritics would remain unsolved unless rigorous astrophysical modeling were brought to bear on them. He emphasized the differences in cultures between the fields of meteoritics and astrophysics, one data-driven and fixated on minutiae such as per mil isotopic shifts, the other able to model physics as ...

A new generative multispectral texture model based on discrete distribution mixtures is introduced. Statistical texture properties are represented by a discrete distribution mixture of product components. A natural colour or multispectral texture is spectrally factorized and discrete mixtures models are learned and used to synthesize single orthogonal monospectral components. Texture synthesis ...

Projective texture-mapping is a powerful tool for image-based rendering. However, visibility information must be obtained in order to project correct textures onto the geometric sturcture. This paper presents a novel visibility algorithm for determining which polygons are visible from each camera position. It has object-space precision, but operates in both image-space and object-space to get b...