C:\Users\Arclight\Presentations\Arclight Sustainability
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The document discusses sustainable lighting design and addresses several key topics in 3 paragraphs or less: 1. Lighting designers must consider social, economic, and environmental factors when designing lighting. This includes using daylight whenever possible and directing light only to the intended task to save energy. 2. Basic lighting needs include visibility, visual comfort, and safety, while sustainability requires considering the environment and energy savings. Light pollution can be reduced by preventing glare, light trespass, visual clutter and overlighting. 3. Sky glow over urban areas is caused by improperly aimed lights that emit light above the horizontal. This disrupts ecosystems and astronomy. Solutions include shielding lights, directing them downward, and only lighting areas
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tube
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The tube contains mercury vapour at low pressure, and the inner wall of the glass is coated with a phosphor that reacts to ultra-violet radiation. When electricity is passed through the vapour it emits UV radiation that is converted by the phosphor to visible light.
The most efficient fluorescent tubes are the T5. With a smaller diameter (16mm) than earlier tubes, these can achieve a luminous efficacy of up to 104lm/W
Discharge lamps work by striking an electrical arc between two electrodes, causing a filler gas to give off light.
Different metals and filler gasses can be used to provide a range of colour and brightness.
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The gas discharge lamps have three types as follows
Low pressure d
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This presentation was provided by Racquel Jemison, Ph.D., Christina MacLaughlin, Ph.D., and Paulomi Majumder. Ph.D., all of the American Chemical Society, for the second session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session Two: 'Expanding Pathways to Publishing Careers,' was held June 13, 2024.Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh
skeleton System.pdf (skeleton system wow)
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إضغ بين إيديكم من أقوى الملازم التي صممتها
ملزمة تشريح الجهاز الهيكلي (نظري 3)
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تتميز هذهِ الملزمة بعِدة مُميزات :
1- مُترجمة ترجمة تُناسب جميع المستويات
2- تحتوي على 78 رسم توضيحي لكل كلمة موجودة بالملزمة (لكل كلمة !!!!)
#فهم_ماكو_درخ
3- دقة الكتابة والصور عالية جداً جداً جداً
4- هُنالك بعض المعلومات تم توضيحها بشكل تفصيلي جداً (تُعتبر لدى الطالب أو الطالبة بإنها معلومات مُبهمة ومع ذلك تم توضيح هذهِ المعلومات المُبهمة بشكل تفصيلي جداً
5- الملزمة تشرح نفسها ب نفسها بس تكلك تعال اقراني
6- تحتوي الملزمة في اول سلايد على خارطة تتضمن جميع تفرُعات معلومات الجهاز الهيكلي المذكورة في هذهِ الملزمة
واخيراً هذهِ الملزمة حلالٌ عليكم وإتمنى منكم إن تدعولي بالخير والصحة والعافية فقط
كل التوفيق زملائي وزميلاتي ، زميلكم محمد الذهبي 💊💊
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THE SACRIFICE HOW PRO-PALESTINE PROTESTS STUDENTS ARE SACRIFICING TO CHANGE T...
The recent surge in pro-Palestine student activism has prompted significant responses from universities, ranging from negotiations and divestment commitments to increased transparency about investments in companies supporting the war on Gaza. This activism has led to the cessation of student encampments but also highlighted the substantial sacrifices made by students, including academic disruptions and personal risks. The primary drivers of these protests are poor university administration, lack of transparency, and inadequate communication between officials and students. This study examines the profound emotional, psychological, and professional impacts on students engaged in pro-Palestine protests, focusing on Generation Z's (Gen-Z) activism dynamics. This paper explores the significant sacrifices made by these students and even the professors supporting the pro-Palestine movement, with a focus on recent global movements. Through an in-depth analysis of printed and electronic media, the study examines the impacts of these sacrifices on the academic and personal lives of those involved. The paper highlights examples from various universities, demonstrating student activism's long-term and short-term effects, including disciplinary actions, social backlash, and career implications. The researchers also explore the broader implications of student sacrifices. The findings reveal that these sacrifices are driven by a profound commitment to justice and human rights, and are influenced by the increasing availability of information, peer interactions, and personal convictions. The study also discusses the broader implications of this activism, comparing it to historical precedents and assessing its potential to influence policy and public opinion. The emotional and psychological toll on student activists is significant, but their sense of purpose and community support mitigates some of these challenges. However, the researchers call for acknowledging the broader Impact of these sacrifices on the future global movement of FreePalestine.
Bossa N’ Roll Records by Ismael Vazquez.
Bossa N Roll Records presentation by Izzy Vazquez for Music Retail and Distribution class at Full Sail University
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Jemison, MacLaughlin, and Majumder "Broadening Pathways for Editors and Authors"
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C:\Users\Arclight\Presentations\Arclight Sustainability
- 1. Using light as a medium in a sustainable way
- 13. Light Trespass:
- 14. Energy waste: Problem: Global Warming- Methane and carbon dioxide emissions 30 to 50% of the light we produce is never used, shining sideways or upwards instead. Misdirected light, using too much light, and leaving the lights on all night when nobody is around, are all wastes of energy
- 17. Visual Clutter: Visual confusion: Traffic lights near neon, street lighting and Christmas lights all in the same environment Ugly landscape: Compromising nature and architecture with overflow of lamp posts, glare, lamp colours etc
- 18. Over Lighting: Light levels exceeding those needed for the task. Too much light often arises from a "more is better" philosophy - Businesses trying to outshine their competitors Over-lighting results in indirect glare, where illuminated objects (buildings, garages or car showrooms) are too bright compared to their surroundings.
- 19. Over Lighting indoor: Only 30% of spaces in offices are on a working plane Apply light sparingly in response to architecture/user needs Use task lighting on desk levels and LV mood lighting in other areas Codes of practice are guidelines only, interpret them with common sense
- 20. Up-light: Improperly aimed or unshielded lights emit light above the horizontal Causes the dome of sky glow over towns and cities Typically, lights that cause up-light also cause significant glare and light trespass. Unshielded garden lights, most "security" lighting, most streetlights, and billboards with bottom-mounted lights are typical sources of up-light Using shielded lights that are aimed down so that no light is emitted above horizontal will stop up-light and reduce light trespass and glare.
- 21. Up-light:
- 22. Up-light : Full cut off Semi cut off No cut off
- 25. Sky Glow: Earth from Cosmos, Photograph by NASA