scholarly journals Effective Lighting Design Standards Impacting Patient Care: A Systems Approach

2015 ◽  
Vol 03 (11) ◽  
pp. 54-61 ◽  
Author(s):  
Sameer Mehrotra ◽  
Sunil Basukala ◽  
Shiva Devarakonda
1975 ◽  
Vol 50 (12) ◽  
pp. 1106-12
Author(s):  
M Wood ◽  
F Mayo ◽  
D Marsland

2003 ◽  
Vol 22 (5) ◽  
pp. 157-165 ◽  
Author(s):  
Carl A. Sirio ◽  
Kenneth T. Segel ◽  
Donna J. Keyser ◽  
Edward I. Harrison ◽  
Jon C. Lloyd ◽  
...  

2020 ◽  
Vol 189 ◽  
pp. 03035
Author(s):  
Qi Li ◽  
Mingyang Chen ◽  
Wenjing Xie ◽  
Qianyue Wang ◽  
Yue Wu ◽  
...  

In order to ensure the driving safety of high-altitude highway tunnel and effectively reduce the lighting cost, this paper adopts the method considering the influence of automobile headlights luminance which combines reaction time incremental theory at different altitudes and lighting design simulation calculation. The paper has studied the design pattern of high-altitude highway tunnel, which are dominated by fixed lighting and supplemented by automotive lighting. The results show that: to ensure driving safety, the luminance of the lighting design for interior zone of highway tunnel increases with the increasing altitude. Based on the supplementary lighting of automobile headlights, the lighting design standards for the interior zone of high-altitude highway tunnel(the altitude is 2000m, 3000m, 4000m, 5000m respectively) are 0.73cd/m2, 0.82cd/m2, 0.91cd/m2, 1.0cd/m2.


Author(s):  
Anjali Joseph ◽  
Rutali Joshi ◽  
Sahar Mihandoust ◽  
Swati Goel ◽  
Kiran Hebbar ◽  
...  

Objective: The objectives of this study are to graphically depict specific clinical challenges encountered in a mirrored pediatric intensive care unit patient room and to represent potential solutions to address these challenges using a systems approach. Background: The intensive care unit (ICU) patient room is a highly complex patient care environment where the design of the room must support patient care delivery safely and efficiently. There is a lack of research examining how ICU design elements interact with other system components to impact patient care. Methods: An observational case study method utilizing a systems approach was used to observe and graphically depict clinical challenges with mirrored room configurations and to identify potential solutions. Video recordings of the three clinical scenarios were analyzed in detail in conjunction with three rounds of interviews with a clinical expert. Results: Equipment or task characteristics that require orienting to a specific side of a patient create challenges in a mirrored room. In order to deliver care safely and efficiently in the mirrored room, adaptations would be required including changing boom, equipment and team member locations, purchasing new equipment, staff training, and inventory management. Some procedures such as extracorporeal membrane oxygenation would be difficult to conduct safely in the mirrored room, even with significant adaptations. Conclusion: Solutions to the challenges presented in mirrored room configurations are multifaceted and require simultaneous and ongoing changes to multiple systems elements, while others can be addressed relatively easily, for example, purchasing new equipment.


2021 ◽  
pp. 77-87
Author(s):  
Sourin Bhattacharya ◽  
Suddhasatwa Chakraborty ◽  
Susanta Ray

A software-based comparative simulation work was conducted about the luminance-based method of road lighting design with MATLAB and DIALux, giving due consideration to the design standards laid down in CIE140:2019 technical report. The outputs were obtained for a specified set of road lighting conditions in terms of luminaire mounting height, road width, spacing of lighting poles, overhang, and maintenance factor for four different CIE standard road surfaces R1, R2, R3, and R4, six different observer positions and three types of luminai rearrangements. MATLAB and DIALux outputs were quantified by three quality parameters, namely: average luminance, overall uniformity and longitudinal uniformity of luminance, and the linear correlation between the two was found to be statistically significant (p < 0.00001). DIALux, as a graphical lighting design tool, was found to be more convenient than the algorithm-reliant MATLAB programming approach for general road lighting simulation. However, MATLAB programming approachcould facilitate experimental road lighting simulation, and the developed MATLAB program could be used as a flexible tool to simulate road lighting with experimental luminaire distribution curve of luminous intensity (I) and road surface reduced luminance coefficient (r) tables. Further developments upon it could potentially integrate provisions for luminaires with custom tilt and curved road surfaces.


2014 ◽  
Vol 543-547 ◽  
pp. 181-184
Author(s):  
Xue Liang Wang ◽  
An Cui ◽  
Wen Qiang Xu ◽  
Qian Zhang

The artificial lighting level and visual comfort of drivers for a high-speed train cab are evaluated by using computer simulation technology. The simulation model is established first, and then some lighting quality indexes, such as illuminance, illuminance uniformity and glare, are analyzed based on related design standards. Considering the effects of environmental lighting on drivers physiology and psychology, the analysis on environmental psychology for driver of the cab are conducted also. The evaluation method proposed in the paper is significant for improving artificial lighting design of high-speed train cab.


2018 ◽  
Vol 44 (5) ◽  
pp. 279-292 ◽  
Author(s):  
Ambrose H. Wong ◽  
Halley Ruppel ◽  
Lauren J. Crispino ◽  
Alana Rosenberg ◽  
Joanne D. Iennaco ◽  
...  

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