你知道嗎,再生能源技術持續向前推進ing..... 透過尾流轉向技術,讓風機彼此「攜手合作」提高整體風場發電量 (07/01/2021 TechNews科技新報)
作者 Daisy Chuang
為了減少風機尾流效應、提高風力發電場電廠整體發電量,現在已有科學家將目標瞄準控制前排風機角度,讓風機能作為一個成熟產業、聰明地調整偏航角與俯仰角,讓尾流順利避開下游的風機。
幾乎所有風力發電場都會面臨到風機尾流(wake effect)難題,當風吹過風機時,風機會攔截部分風並轉化為機械能,因此後方的風強度跟風速都會減弱,使後排風機發電效率下降,衝擊整體發電場的表現,對此美國伊利諾大學厄巴納-香檳分校(U of I)研究人員認為,如果我們把風場當成耦合網路(coupling network)來設計,能更有效地將風轉換成電力。
U of I 工業與企業系統工程系研究生顧問 Lucas Buccafusca 表示,設想風場裡面的每一支風機都貪婪地、試圖捕獲更多的風能資源,那麼這就不是理想的風電系統,風電場設計應該要讓每支風機「攜手合作」,最終提高整體性能。
對此團隊首先針對不同風速設定模型預測控制(Model predictive control)框架,再結合風機尾流轉向技術,證明這些方法的可行性。其中尾流轉向技術是調整風機和葉片的角度,使尾流具有偏移效應,不會干擾到後方順風的渦輪機,雖然減少正向風向該有的產量,但也有效減少了尾流所帶來的發電損失。Buccafusca表示,團隊發現即使是小型風機陣列,僅僅透過尾流轉向技術,也能獲得高收益。
研究人員發現,若控制算法有考量到下游效應,風場表現可明顯提高。該控制系統透過軸向誘導係數(induction factors )和偏航誤差控制(yaw misalignment),以尾流轉向模擬技術來驗證結果。
研究人員未來還計劃擴大應用,將類似的方法套用在分散式風電問題,打算在每支風機內設置電池,儲存風力發電產出的過多電力、然後當風速過低發電量下降時,就可將電池儲存起來的電力供給電網。團隊雖然主要關注是風電功率追踪問題,但這種多目標模型預測控制框架也可以用於各種分散式最佳化或共識控制問題。
參考資料:
Steering Wind Turbines Creates Greater Energy Potential(06/29/2021 JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY)
https://publishing.aip.org/publications/latest-content/steering-wind-turbines-creates-greater-energy-potential/
完整內容請見:
https://technews.tw/2021/07/01/wake-effect
♡
同時也有18部Youtube影片,追蹤數超過1,600的網紅運動營養師 楊承樺,也在其Youtube影片中提到,內容製作產出不易,你的 按讚訂閱分享 是支持我們的動力。 (發1篇影片要看超過20幾篇研究文獻再整理出最摘要建議,不幫我追蹤,按讚,分享出去, 安內甘丟 ~ XD ) 168間歇性斷食,運動營養師我也早已實行多年,但過去自己用的配法沒有說太多是因為一直在等研究證據出現來支持我的觀點(畢竟有一分證據才...
energy journal 在 運動營養師 楊承樺 Facebook 的最佳貼文
🎬之前拍了影片跟大家介紹 #168 #間歇性斷食
研究表示經過12周的間歇姓斷食➡️可減少代謝症侯群的症狀,包含改善體重、腰圍和血壓,
且因為間歇性斷食,讓進食的時間更規律,因此有助心臟健康,
也有少數研究提到對睡眠品質有幫助!
但今天要進階和大家討論,進食的時間,和心臟健康關係也很重要!
依照台灣普遍的生活作息和飲食習慣,多數人執行斷食時,是選擇不吃早餐,
👩🏻⚕️從營養學研究觀點上來看,該不該吃早餐這件事,其實正反面支持的都有。
以流行病學角度來看,有吃早餐習慣的成年人,罹患心臟病和第二型糖尿病的風險較小,
而不吃早餐的人,下午的血糖變動性可能會比較高,容易下午肚子餓,對於原本肥胖的人來說,體重增加的機率反而更高😳
提醒⚠️早上運動的人,就請要吃早餐
所以,請大家要經過營養師的專業,幫你判斷適不適合斷食,以及依照個人的狀態,建議在什麼時段進食😉
參考資料:
Alhussain, M. H., Macdonald, I. A., & Taylor, M. A. (2016). Irregular meal-pattern effects on energy expenditure, metabolism, and appetite regulation: a randomized controlled trial in healthy normal-weight women. The American journal of clinical nutrition, 104(1), 21-32.
Ballon, A., Neuenschwander, M., & Schlesinger, S. (2019). Breakfast skipping is associated with increased risk of type 2 diabetes among adults: a systematic review and meta-analysis of prospective cohort studies. The Journal of nutrition, 149(1), 106-113.
Betts, J. A., Chowdhury, E. A., Gonzalez, J. T., Richardson, J. D., Tsintzas, K., & Thompson, D. (2016). Is breakfast the most important meal of the day?. Proceedings of the Nutrition Society, 75(4), 464-474.
Betts, J. A., Richardson, J. D., Chowdhury, E. A., Holman, G. D., Tsintzas, K., & Thompson, D. (2014). The causal role of breakfast in energy balance and health: a randomized controlled trial in lean adults. The American journal of clinical nutrition, 100(2), 539-547.
Chowdhury, E. A., Richardson, J. D., Holman, G. D., Tsintzas, K., Thompson, D., & Betts, J. A. (2016). The causal role of breakfast in energy balance and health: a randomized controlled trial in obese adults. The American journal of clinical nutrition, 103(3), 747-756.
Takagi, H., Hari, Y., Nakashima, K., Kuno, T., Ando, T., & ALICE (All-Literature Investigation of Cardiovascular Evidence) Group. (2019). Meta-analysis of relation of skipping breakfast with heart disease. The American journal of cardiology, 124(6), 978-986.
Wilkinson, M. J., Manoogian, E. N., Zadourian, A., Lo, H., Fakhouri, S., Shoghi, A., ... & Taub, P. R. (2020). Ten-hour time-restricted eating reduces weight, blood pressure, and atherogenic lipids in patients with metabolic syndrome. Cell metabolism, 31(1), 92-104.
—
#早餐 #下午茶 #teatime
#個人運動飲食安排有疑問者建議請先洽詢運動營養師
#增肌減脂 #飲食顧問服務 #營養講座 #胰島素 #運動營養
#促進運動表現飲食顧問服務 #減重 #減肥 #競技運動營養師 #營養品顧問 #拼pin小教室
#北市大運科所 #SportsNutrition #SportsDietitian #SportsScience
#FatLoss #MuscleGain #Performance
#Inbody570 #統一陽光豆漿 #全家健康志向
energy journal 在 運動營養師 楊承樺 Facebook 的最讚貼文
(發1篇影片要看超過20幾篇研究文獻再整理出最摘要建議,不幫我追蹤,按讚,分享出去,安內甘丟 ~ XD )
#168間歇性斷食,運動營養師我也早已實行多年,但過去自己用的配法沒有說太多是因為一直在等研究證據出現來支持我的觀點(畢竟有一分證據才說一分話)。
以前已經有些研究發現若只作斷食而不搭配運動容易掉肌肉,
但這次有更新的研究發現支持下可以來跟大家說:你可以改成168間歇性斷食 搭配 重訓 就可避免掉肌肉還能減脂,但該怎做呢?
今天跟 甜藍蕉 蕉導 拍影片來教大家怎麼安排會更好,並用全家便利商店的 蛋白纖食餐 來示範說明。
對影片中研究有興趣的,我把文獻來源放在最底下。
附註:本次討論針對都是沒有疾病的成年人為對象,若在生病中或有慢性疾病像是糖尿病,或特殊族群例如:學齡青少年、兒童、孕婦、年長者、飲食障礙者、腸胃不適者等等,都不是今天討論的對象。若有其他您不確定的狀況,請先諮詢過您的醫師或營養師意見。
--
#個人運動飲食安排有疑問者建議請先洽詢運動營養師 #斷食。
#增肌減脂 #飲食顧問服務 #營養講座
#促進運動表現飲食顧問服務 #減重 #減肥 #運動營養師 #競技運動營養師 #營養品顧問 #拼pin小教室 #運動營養
#北市大運科所 #SportsNutrition #SportsDietitian #SportsScience
#Inbody570 #統一陽光豆漿 #全家健康志向 #蛋白纖食餐 #超級大麥 #運動應援
文獻來源:
Lowe, D. A., Wu, N., Rohdin-Bibby, L., Moore, A. H., Kelly, N., Liu, Y. E., ... & Weiss, E. J. (2020). Effects of time-restricted eating on weight loss and other metabolic parameters in women and men with overweight and obesity: the TREAT randomized clinical trial. JAMA internal medicine, 180(11), 1491-1499.
Tinsley, G. M., Moore, M. L., Graybeal, A. J., Paoli, A., Kim, Y., Gonzales, J. U., ... & Cruz, M. R. (2019). Time-restricted feeding plus resistance training in active females: a randomized trial. The American journal of clinical nutrition, 110(3), 628-640.
Stratton, M. T., Tinsley, G. M., Alesi, M. G., Hester, G. M., Olmos, A. A., Serafini, P. R., ... & VanDusseldorp, T. A. (2020). Four weeks of time-restricted feeding combined with resistance training does not differentially influence measures of body composition, muscle performance, resting energy expenditure, and blood biomarkers. Nutrients, 12(4), 1126.
Moro, T., Tinsley, G., Bianco, A., Marcolin, G., Pacelli, Q. F., Battaglia, G., ... & Paoli, A. (2016). Effects of eight weeks of time-restricted feeding (16/8) on basal metabolism, maximal strength, body composition, inflammation, and cardiovascular risk factors in resistance-trained males. Journal of translational medicine, 14(1), 1-10.
energy journal 在 運動營養師 楊承樺 Youtube 的最佳貼文
內容製作產出不易,你的 按讚訂閱分享 是支持我們的動力。
(發1篇影片要看超過20幾篇研究文獻再整理出最摘要建議,不幫我追蹤,按讚,分享出去,
安內甘丟 ~ XD )
168間歇性斷食,運動營養師我也早已實行多年,但過去自己用的配法沒有說太多是因為一直在等研究證據出現來支持我的觀點(畢竟有一分證據才說一分話)。
以前已經有些研究發現若只作斷食而不搭配運動容易掉肌肉,
但這次有更新的研究發現支持下可以來跟大家說:你可以改成168間歇性斷食 搭配 重訓 就可避免掉肌肉還能減脂,但該怎做呢?
很簡單今天影片來教大家怎麼安排會更好,並用全家便利商店的 蛋白纖食餐
來示範說明。
對影片中研究有興趣的,我把文獻來源放在最底下。
附註:本次討論針對都是沒有疾病的成年人為對象,若在生病中或有慢性疾病像是糖尿病,或特殊族群例如:學齡青少年、兒童、孕婦、年長者、飲食障礙者、腸胃不適者等等,都不是今天討論的對象。若有其他您不確定的狀況,請先諮詢過您的醫師或營養師意見。
--
#個人運動飲食安排有疑問者建議請先洽詢運動營養師 #168 #斷食。
#增肌減脂 #飲食顧問服務 #營養講座 #運動營養
#促進運動表現飲食顧問服務 #減重 #減肥 #運動營養師 #競技運動營養師 #營養品顧問 #拼pin小教室
#北市大運科所 #SportsNutrition #SportsDietitian #SportsScience
#Inbody570 #統一陽光豆漿 #全家健康志向 #蛋白纖食餐 #超級大麥 #運動應援
想看更多營養知識?快按下「訂閱」及小鈴鐺,一有新影片,馬上通知你!
臉書 https://pse.is/N6N95
IG https://pse.is/LDHNQ
YouTube https://pse.is/NG4SH
文獻來源:
Lowe, D. A., Wu, N., Rohdin-Bibby, L., Moore, A. H., Kelly, N., Liu, Y. E., ... & Weiss, E. J. (2020). Effects of time-restricted eating on weight loss and other metabolic parameters in women and men with overweight and obesity: the TREAT randomized clinical trial. JAMA internal medicine, 180(11), 1491-1499.
Tinsley, G. M., Moore, M. L., Graybeal, A. J., Paoli, A., Kim, Y., Gonzales, J. U., ... & Cruz, M. R. (2019). Time-restricted feeding plus resistance training in active females: a randomized trial. The American journal of clinical nutrition, 110(3), 628-640.
Stratton, M. T., Tinsley, G. M., Alesi, M. G., Hester, G. M., Olmos, A. A., Serafini, P. R., ... & VanDusseldorp, T. A. (2020). Four weeks of time-restricted feeding combined with resistance training does not differentially influence measures of body composition, muscle performance, resting energy expenditure, and blood biomarkers. Nutrients, 12(4), 1126.
Moro, T., Tinsley, G., Bianco, A., Marcolin, G., Pacelli, Q. F., Battaglia, G., ... & Paoli, A. (2016). Effects of eight weeks of time-restricted feeding (16/8) on basal metabolism, maximal strength, body composition, inflammation, and cardiovascular risk factors in resistance-trained males. Journal of translational medicine, 14(1), 1-10.
energy journal 在 Jessica Vu Youtube 的精選貼文
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Hmm, other updates - I started keto today ? Have any of you tried it? I'm already feeling a little tired but I've heard you get a boost of energy after two weeks. I'm sick of relying on energy drinks a;dkhglds ? Wish me luck!
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energy journal 在 蔓蔓?蔓時尚 Slow Vashion Youtube 的最佳解答
以前讀大學和研究所時,都在服飾專櫃打工過,對於衣服材質的特性要略知一二,才能和客人解釋(自以為在寫104履歷🥺)
記得之前會回家科普櫃內的有機棉、聚酯纖維、天絲等等材質的外部環境成本,但當時遇到的客人普遍都比較在乎穿起來的舒適度😆
如今,社會上越來越多在意環保的人,而且呀,近幾年多了好多理念很棒的永續品牌。最近看到某新品牌Veg and things在他們的的Ins帳號分享的限動,在每個小細節都燒腦研究以降低對環境的傷害,覺得超級感動。
看見那麼努力的大家,於是我也鼓起勇氣把這些東西做成影片,希望對大家有幫助啦!🥰
(影片中提到關於快時尚的庫存浪費,可以參考這篇文章:https://www.google.com.tw/amp/s/www.thenewslens.com/amparticle/94586 )
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00:00 讓大家傻眼的衣服污染數據
01:17 聚酯纖維的微塑膠污染
02:44 棉花「環保」嗎?
03:11 有機棉真的比棉花「環保」嗎?
05:00 看似環保的羊毛
05:38 蠶絲是怎麼來的?
06:07 環境友善的作物:麻
07:21 名字看起來很化學的嫘縈:天絲/萊塞爾/莫代爾
08:43 合成纖維的機能性才好?
08:59 關於寶特瓶回收衣
09:20 永續材質小Tips
12:04 使用永續材質的衣服品牌
🌱veg. & Things https://www.vegandthings.com
🌱冶綠 https://wildgreen.tw
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🌱和諧生活 https://www.harmonylife.com.tw/categories/2020春夏設計師新品
🌱SiSSO https://www.sisso.com.tw/products/babyclothes/
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📷Instagram: @slow_vashion
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[1] 環保署109年統計年報
https://www.epa.gov.tw/Page/4CE99E90109C419B
[2] 《為什麼你該花更多的錢,買更少的衣服?拯救地球,也拯救你衣櫃的新購衣哲學》 Lucy Siegle, 2015
[3] Athalye, A.Carbon footprint in textile processing, 2012
http://images.fibre2fashion.com/ArticleResources/PdfFiles/60/5965.pdf
[4] Catherine, SalfinoStudies Show Performance Activewear Could be Harming Your Health, Sourcing Journal, 2017
https://sourcingjournal.com
[5] Frequency of Microplastics in Mesopelagic Fishes from the Northwest Atlantic
A. M. Wieczorek, L. Morrison1, P. L. Croot, A. L. Allcock, E. MacLoughlin, O. Savard4, H. Brownlow, T. K. Doyle Front. Mar. Sci., 2018
https://www.frontiersin.org/articles/10.3389/fmars.2018.00039/full
[6] A New California Bill Would Require Labe, Arthur Friedmanl 2018.2.26
https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=201720180AB2379
[7] Carbon footprint of three different textile products during its life cycle Jungmichel, N., The Carbon Footprint of Textiles, Systain Consulting, Berlin, Germany, 2010.
https://www.researchgate.net/publication/276193965_Carbon_Footprint_of_Textile_and_Clothing_Products (last accessed: Sep. 5 2020)
[8] 環境資訊中心 邪惡的白T Shirt
https://e-info.org.tw/node/20857
[9] Nations, U. Statistics: Graphs and Statistics. 2013, from UN
[10] Jungmichel, N., The Carbon Footprint of Textiles, Systain Consulting, Berlin, Germany, 2010.
[11] Textile Exchange, 2018
[12] A.Barber, G. Pellow. Life Cycle Assessment: New Zealand Merino. Industry – Merino Wool Total Energy Use and Carbon Dioxide.
[13] 羊毛的製程
https://www.peta.org/issues/animals-used-for-clothing/wool-industry/
[14] Is silk vegan?
https://www.peta.org/blog/is-silk-vegan/
[15] How sustainable is linen
https://goodonyou.eco/how-sustainable-is-linen/
[16] 夏日穿這最防曬
https://health.tvbs.com.tw/regimen/318013
[17] 天絲、萊賽爾、木代爾、嫘縈有什麼不同?
https://oghome.com.tw/tencel-level/
[18] Rayon Man Made Fiber: Spinning-methods
https://www.brainkart.com/article/Rayon---Man-Made-Fiber---Spinning-methods,-Manufacturing,-Properties_1767/
[19] Bernie Thomas, Matt Fishwick, James Joyce, A Carbon Footprint for UK Clothing and Opportunities for Savings, Anton van Santen Environmental ResourcesManagement Limited (ERM)
[20] 紡織品資訊應用知識服務網 全球有機棉生產飆升56% http://monitor.textiles.org.tw/newsdetail.aspx?id=32992
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