scholarly journals Overall Design and Optimization of Mining Sequence in High-Stress Environment of Thick Orebody

Author(s):  
WU Shan ◽  
YANG Xiaocong ◽  
Guo Lijie ◽  
CHEN Lu
2020 ◽  
Vol 50 (12) ◽  
pp. 720-732
Author(s):  
Inmaculada Adarves‐Yorno ◽  
Michelle Mahdon ◽  
Leonie Schueltke ◽  
Miriam Koschate‐Reis ◽  
Mark Tarrant

2011 ◽  
Vol 26 (S2) ◽  
pp. 1860-1860
Author(s):  
Z.A. Wani

Ambulance drivers represent a crucial link in health care. Their role becomes more important in war, conflict and similar settings. Increased exposure to high risk situations is a norm rather than an exception in a conflict zone. Kashmir has been undergoing a low intensity conflict since last 20 years in which thousands have lost lives and many more have been injured. Violence has affected nearly everybody living in Kashmir. The present study was done to assess the difficulties faced by the ambulance crew along with along with the psychological impact of the conflict. A questionnaire was formulated and was administered to the ambulance drivers of the major hospitals of the valley. Damage to ambulances, Frequent arguments with Indian security forces. Bodily injuries including fractures due to being beaten by police, torture were regular occurances for a signifiant number of drivers. Long working hours (80–90), disturbed sleep patterns along with night mares, Fear apprehension Somatic complaints, Anxiety were the most common symptoms. In spite of all these problems none of the drivers had seeken a psychiatric consultation for their symptoms. Although a few had self started on anxiloltic drugs but no proper psychiatric treatment was instituted in any of the suffers.Prolonged working hours, working in a high stress environment with hostile mobs on one side and non accountable security forces on another takes the toll on the mental health of these drivers.


Author(s):  
Julie A. Reyer ◽  
Panos Y. Papalambros

Abstract In the design and optimization of artifacts requiring both mechanical and control design, the process is typically divided and performed in separate steps. The physical structure is designed first, a control strategy is selected, and the actual controller is then designed. This paper examines how this separation could affect the overall system design and how the combination of the separate problems into a single decision model could improve the overall design, using an electric DC motor as a case study. The combination is challenging since the two problems often have different design criteria and objectives and mathematical model properties. A Pareto analysis is suggested as a rigorous way to compare a variety of design scenaria.


Paleobiology ◽  
1978 ◽  
Vol 4 (2) ◽  
pp. 163-170 ◽  
Author(s):  
David R. Kobluk ◽  
Noel P. James ◽  
S. George Pemberton

The traces of macroboring organisms are known throughout the Phanerozoic, with diversification and exploitation of the macroboring niche paralleling variations in the development of skeletal metazoa. The oldest macroboring biota is an abundant yet low diversity fauna in hardgrounds and reefs of Lower Cambrian age. Following the extinction of archaeocyathids at the end of the Lower Cambrian (and thus the demise of skeletal reefs until the Middle Ordovician), boring organisms appear to be restricted to submarine hardgrounds. With the development of skeletal reefs in the Middle Ordovician the macroboring fauna shows a rapid speciation and a dramatic increase in diversity. This same pattern occurs again in the Devonian. This record appears to represent refuge of the fauna in low stress, hardground environments when skeletal reefs were not present and radiation in the high stress environment of the reef when large skeletal metazoa were abundant and diverse.


Author(s):  
Audrey Shafer

Narrative and metaphor can be viewed as literary terms without much use in the world of medicine other than to prettify language and decorate ivory tower treatises on medical esoterica. However, since narrative and metaphor are integral to how we think, how we analyse and process information, how, in fact, we perceive and thus act, it would be naive and arbitrary to exclude such concepts from an understanding of the practice of medicine. Furthermore, with its compression and crystallization of communication with the patient, the complex interplay between human and machine, the draconian consequences of poor communication and the emotional toll of a high stress environment, the practice of anaesthesia lends itself well to a closer look at how narrative and metaphor imbue and inform what anaesthetists do. The relationship between narrative and story is largely determined by context. Interchangeable in some respects, the terms both mean an account of events, and each can be contained in the other. For instance, a narrative can be woven from various stories and a story can contain narratives of various characters. The term narrative is mostly used here primarily because it encompasses text, however fragmentary, dialogue, and the study of narrative in medical education and practice, termed ‘narrative medicine’. Nonetheless, ‘story’ is also understood here, and is a useful term, particularly in relation to a point of view or a retelling of an experience, in Rashomon fashion, from differing perspectives. As noted in Chapter 2, inflection and emphasis change the meaning of even a single sentence. The idea of differing perspectives deserves special attention in the anaesthetist–patient relationship. The ‘narrative incommensurability’ between doctor and patient is one of the prime driving forces behind the need for good communication pre- and post-operatively. That is, the unknowableness of another person, indeed a stranger, for whom we anaesthetists assume vital and personhood responsibilities during the operation, makes clear and comprehensive communication that much more important. People develop not only as individuals, but also as social beings. Just as we try to understand another’s actions through, among other ways, the mirror neuron system, we try to understand another’s perspective, all the while recognizing that we are, by definition, distinct.


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