نتایج جستجو برای: beryl

تعداد نتایج: 217  

Journal: :Frontiers in Earth Science 2023

Lithium (Li) can be found in many minerals, including lepidolite. Lepidolite is pegmatite-related tin deposits the Phang Nga area southern Thailand. According to their field occurrence, petrography, mineral chemistry, and whole-rock geochemistry, Li-bearing pegmatites granitic rocks study linked Thailand as part of SE Asian belt. The are characterized by an abundance lepidolite, K-feldspar, pla...

Journal: :Frontiers in Earth Science 2021

The giant Gejiu Sn–Cu polymetallic ore deposit is one of the largest Sn producers in world, and related time space to highly evolved S type granitic intrusion. mineralization processes can be divided into four stages: (I) skarnization; (II) greisenization; (III) cassiterite–sulfid; (IV) cassiterite–tourmaline–quartz. Five types fluid inclusions were recognized using optical petrography, microth...

Journal: :Patient Experience Journal 2021

In 2014, the authors came together with explicit purpose of understanding how people were defining patient experience.1 Our broad review and analysis literature led us to a few critical points. One, as our showed, there was an absence commonly used definition around experience in healthcare. Two, while consistency use one not revealed, great alignment central components seen experience. Three, ...

1963
A. G. McPherson

My subject is congenital ano-rectal anomalies, commonly but inaccurately called imperforate anus, but in a short paper it would be impossible to deal comprehensivel) with the subject so I propose therefore to concentrate on its clinical aspects. The material is provided by a personal series of 18 cases referred to me since 195? at Southmead Hospital, by my Paediatric colleagues Professor A. V. ...

2007
Dempsey Chang Keith Nesbitt Kevin Wilkins

When designing multi-sensory displays it is necessary to consider human perceptual capabilities and understand how people find patterns and how they organise individual elements into structures and groups. Gestalt theory, originally described in 1910, attempts to explain the way people perceive and recognise patterns. The early studies of Gestalt principles of grouping were predominantly concer...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده علوم 1387

چکیده ندارد.

Journal: :British journal of industrial medicine 1954
A MEIKLEJOHN

According to the Statistical Account of Scotland (Maconochie, 1792) the village of Leadhills in Lanarkshire contains the most famous and ancient lead mines in Scotland. They were included in a grant of lands to the monks of Newbattle Abbey in 1239 and, from a lawsuit soon afterwards, it is clear that the mines were in production about that date. Depending on demand and the price of lead they ha...

2012
Herbert A. Simon

In the preceding chapter a taxonomy of pr oblem types was proposed, and some hypotheses set forth about the general kin ds of skills and knowledge needed to solve problems of each type.. The p resent chapter, adopting the same information-processing point of view as the previous one, undertakes three tasks. The first part of the chapter sets forth th e general theory of human problem Solving th...

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