in this work‎, ‎we formulate chatterjea contractions using graphs in metric spaces endowed with a graph ‎‎and‏ ‎‎‎‎investigate ‎the ‎existence‎ ‎of ‎fixed ‎points ‎for such mappings ‎under two different hypotheses‎. we also discuss the uniqueness of the fixed point. the given result is a generalization of chatterjea's fixed point theorem from metric spaces to metric spaces endowed with a g...

bentonite deposits of economic interest are widespread in tashtab mountains (khur), east of isfahan province, iran. several bentonite deposits have been developed in this area as a result of eocene volcanic alteration. these deposits are classified as khur bentonite horizon. xrd analyses reveal that alteration products consist of na-montmorillonite, kaolinite, quartz, calcite, and crystobalite....

Glauconite is an authigenic clay mineral that common in marine sedimentary successions. Dating of glauconite to determine the depositional age sequences has a long history but fallen into disfavor due difficulty obtaining “pure” separates. Recent advances petrography and reaction cell mass spectrometry permit rapid situ Rb-Sr dating carefully screened grains. However, remains susceptible burial...

alteration was ohserved along minor subsidiary faults in the northwest and northeast parts of Iron Range Mountain. The main Iron Range deposit consists of the segment of the ault containing the richest iron mineralization and underlies the northern half of the ridge which makes up Iron Range Mountain. This area extends northward onto the Grassy Mountain sheet (82FB). The area of m...

The problem of finding a robot's range-to-obstacles is a fundamental one with an elegant solution: the laser range finder (LRF). This work has developed algorithms for replacing a laser with a camera for indoor applications. Our approach uses machine learning algorithms to segment the groundplane from single images flexibly, quickly, and robustly. We then transform those segmentations into lase...

Alteration of cell membrane permeability by exposure plant tissues to pulsed electric fields (PEF) is associated with physical changes in cellular and subcellular structures. The aim our study was investigate the possible non-uniform effect PEF treatment due structural heterogeneity commonly used industrial applications: apple fruits, potato tubers, carrot taproots. Spatial distribution T2 rela...

sarbisheh mineral occurrence is located in the vicinity of the tourshab village about 50 km south of birjand, the center of southern khorassan province, east iran. the predominant geologic characteristics of the region are highly-tectonic deformation, and intrusive, granodiroritic-dioritic, to volcanic, dacitic-andsitic rocks associated with broad alteration. to the northern part of the studied...

Indonesia is a country that has several world-class copper-gold deposits, particularly in eastern Sunda arc. The Hu’u complex prospects the surface as lithocap of extensive epithermal style alteration, but some were detected associated with porphyry beneath surface. study focuses on hydrothermal breccia cement factor influencing system district. methods used mineralogical analysis petrography a...

The Pandian deposit is a newly discovered contact metasomatic skarn magnetite found in the Cainozoic super-thick overburden on northwest margin of Luxi Uplift (LXU). Presently, horizontal scale delineated by potential field (gravity and magnetic method) has shown giant for ore deposits, mapping ore-controlling structures vertical becomes primary task metallogenic prediction. In our study, wide-...