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Pocket Rough Guide Lisbon (Travel Guide with Free Ebook)

為了解決Printed的問題，作者Guides, Rough 這樣論述：

Discover the best of Lisbon with this compact, practical, entertaining Pocket Rough Guide with a free eBook. This slim, trim treasure trove of trustworthy travel information is ideal for travellers on short trips, and covers all the key sights such as Castelo de Sao Jorge, Mosteiro dos Jerónimos,

Praça do Comércio, restaurants, shops, cafes and bars, plus inspired ideas for day-trips, with honest independent recommendations from expert authors. The Pocket Rough Guide to LISBON covers: The Baixa and Rossio; The Sé, Castelo and Alfama; Chiado and Cais do Sodré; Bairro Alto and Sao Bento; Est

rela, Lapa and Santos; Alcantara and the docks; Belém and Ajuda; Avenida, Parque Eduardo VII and the Gulbenkian; Parque das Naçoes; Sintra; The Lisbon coast Inside this travel guide you will find: RECOMMENDATIONS FOR EVERY TYPE OF TRAVELLER Experiences selected for every kind of trip to Lisbon, from

off-the-beaten-track adventures in Sintra to family activities in child-friendly places, like Cascais or chilled-out breaks in popular tourist areas, like Alfama. INCISIVE AREA-BY-AREA OVERVIEWSCovering Museu Calouste Gulbenkian, Mercado da Ribeira, Torre de Belemand more, the practical Places sect

ion provides all you need to know about must-see sights and the best places to eat, drink, sleep and shop. TIME-SAVING ITINERARIESThe routes suggested by Rough Guides’ expert writers cover top attractions like Castelo de Sao Jorge and Mosteiro dos Jerónimos, and hidden gems like Museu do Fado and th

e Berardo Collection. DAY-TRIPSVenture further afield to Estoril or Sintra. This tells you why to go, how to get there, and what to see when you arrive. HONEST INDEPENDENT REVIEWSWritten with Rough Guides’ trademark blend of humour, honesty and expertise, our expert writers will help you make the mo

st of your trip to Lisbon. COMPACT FORMATPacked with pertinent practical information, this is a convenient companion when you’re out and about exploring Praça do Comércio, HANDY PULL-OUT MAPWith every major sight and listing highlighted, the pull-out map makes on-the-ground navigation easy. ATTRACTI

VE USER-FRIENDLY DESIGNFeatures fresh magazine-style layout, inspirational colour photography and colour-coded maps throughout. PRACTICAL TRAVEL TIPSIncludes invaluable background information on how to get to Lisbon, getting around, health guidance, tourist information, festivals and events, plus an

A-Z directory and a handy language section and glossary. FREE EBOOK Free eBook download with every purchase of a printed book to access all the content from your phone or tablet for on-the-road exploration.

Printed進入發燒排行的影片

利用焙燒暨酸浸法從廢棄LED晶粒中回收鎵金屬資源

為了解決Printed的問題，作者吳德懷 這樣論述：

LED是發光二極體(Light Emitting Diode)的簡稱。由於LED燈具有節能、無汞等特性，在照明市場之需求日益增加，LED在許多領域已經取代了傳統光源(白熾燈、螢光燈等)。LED燈之高效率白光照明主要是由LED晶粒中氮化鎵(GaN)半導體所產生。隨著LED市場的擴大，未來將產生大量的LED廢棄物。因此，回收廢棄LED中所含的鎵金屬資源對於資源的可持續利用和環境保護都具有重要意義。本研究以廢棄LED燈珠為對象，利用焙燒與酸浸法從其LED晶粒中回收鎵金屬資源，主要包括三個部分：化學組成分析、氟化鈉焙燒處理與酸溶浸漬等。探討各項實驗因子包括焙燒溫度、焙燒時間、礦鹼比、酸浸漬種類及濃度

、浸漬時間、及浸漬固液比等，對於鎵金屬浸漬率之影響，並與各文獻方法所得到的鎵金屬浸漬效果進行比較。研究結果顯示，LED晶粒中含有鎵5.21 wt.%，氟化鈉焙燒暨酸溶浸漬之最佳條件為焙燒溫度900 ℃、焙燒時間3hr、礦鹼比1:6.95、鹽酸浸漬濃度0.5 M、浸漬溫度25 ℃、浸漬時間10mins、固液比2.86 g/L，鎵金屬浸漬率為98.4%。與各文獻方法相比較，本方法可於相對低溫且常壓下獲得較高之鎵金屬浸漬效果。

Renzo Piano Box I: The Whitney Museum, New York; The Shard, London; The Stravos Niarchos Foundation, Athens

為了解決Printed的問題，作者 這樣論述：

"One of the great beauties of architecture is that each time, it is like life starting again." -Renzo PianoThe Renzo Piano Box is a set of highly collectible volumes by star architect Renzo Piano. The box is an elegantly designed slipcase that envelops three (11" x 11") gorgeously printed paperbo

und books, each showcasing one of the great architect's iconic buildings: The Whitney Museum, in New York; The Shard in London; and the Stravos Niarchos Foundation in Athens. Callaway plans to publish a box every season, each with three different titles, and to bring to the many readers and fans of

Piano's astonishing architectural masterpieces his entire series of collected works.The Whitney Museum, New York In 2015, the new home of the Whitney Museum opened to the public in downtown Manhattan's Meatpacking District, substantially enlarging the Whitney's exhibition and programming space. The

new building includes some 4,650 sq. meters of gallery space distributed over the fifth, sixth and seventh levels. The fifth level boasting a 1670 sq. meters, column-free gallery - making it the largest open-plan museum gallery in New York City. The book includes many architectural drawings and the

text at the end of the book provides the reader with a "behind the scenes" view. A conception of the museum that starts from the work of art to arrive at the architectural project. A journey that takes the reader through time and space during its realization.The Shard, London: The London Bridge Towe

r, the tallest building in Europe, also known as the Shard, is a 72-storey, mixed-use tower located beside London Bridge Station on the south bank of the river Thames. A mix of uses - residential, offices and retail - creates a building that is in use 24 hours a day. The slender, pyramidal form of t

he tower was determined by its suitability to the mix of large floor plates at the bottom for offices; restaurants, public spaces and a hotel located in the middle; private apartments at the top of the building. The final floors accommodate a public viewing gallery, 240 m above street level. This ar

rangement of functions also allows the tower to taper off and disappear into the sky, and makes the building look like a shard of glass, a particularly important detail for architect Renzo Piano given the building's prominence on the London skyline. The Stravos Niarchos Cultural Centre, Athens The S

tavros Niarchos Cultural Centre was constructed in Kallithea, 4 km south of central Athens. An important cultural and educational project, the site comprises the National Library of Greece and the Greek National Opera in a 170,000 square meter landscaped park. Previously a parking lot left over from

the 2004 Olympic Games, once upon a time the site of a racetrack, this new Renzo Piano project restores the site's lost connections with the city and the sea.

低腔壓高濃度過氧化氫混合式火箭引擎之研究

為了解決Printed的問題，作者林育宏 這樣論述：

本論文為混合式火箭系統入軌段火箭引擎的前期研究，除了高引擎效率的要求外，更需要精準的推力控制與降低入軌段火箭的結構重量比，以增加入軌精度與酬載能力。混合式火箭引擎具相對安全、綠色環保、可推力控制、管路簡單、低成本等優點，並且可以輕易地達到引擎深度節流推力控制，對於僅能單次使用、需要精準進入軌道的入軌段火箭推進系統有相當大的應用潛力。其最大的優點是燃料在常溫下為固態、易保存且安全，即使燃燒室或儲存槽受損，固態的燃料也不會因此產生劇烈的燃燒而導致爆炸。雖然混合式推進系統有不少優於固態及液態推進系統的特性，相較事先預混燃料與氧化劑的固態推進系統及可精準控制氧燃比而達到高度燃燒效率的液態推進系統，混

合式推進系統有擴散焰邊界層燃燒特性，此因素導致混合式推進系統的燃料燃燒速率普遍偏低，使得設計大推力引擎設計時需要長度較長的燃燒室來提供足夠的燃料燃燒表面積，也導致得更高長徑比的火箭設計。針對此問題，本論文利用渦漩注入氧化劑的方式，增加了氧化劑在引擎內部的滯留時間，並藉由渦旋流場提升氧化劑與燃料的混合效率以及燃料耗蝕率；同時降低引擎燃燒室工作壓力以研究其推進效能，並與較高工作壓力進行比較。本論文使用氮氣加壓供流系統驅動90%高濃度過氧化氫 (high-test peroxide) 進入觸媒床，並使用三氧化二鋁 (Al2O3) 為載體的三氧化二錳 (Mn2O3) 觸媒進行催化分解，隨後以渦漩注入的

方式注入燃燒腔，並與燃料聚丙烯（polypropylene, PP）進行燃燒，最後經由石墨鐘形噴嘴 (bell-shaped nozzle) 噴出燃燒腔後產生推力。實驗部分首先透過深度節流測試先針對原版腔壓40 barA引擎在低腔壓下的氧燃比 (O/F ratio)、特徵速度 (C*)、比衝值 (Isp) 等引擎性能進行研究，提供後續設計20 barA低腔壓引擎的依據，並整理出觸媒床等壓損以及燃燒室等流速的引擎設計轉換模型；同時使用CFD模擬驗證渦漩注射器於氧化劑全流量下 (425 g/s) 的壓損與等壓損轉換模型預測的數值接近 (~1.3 bar)。由腔壓20 barA 引擎的8秒hot-f

ire實驗結果顯示，由於推力係數 (CF) 在低腔壓引擎的理論值 (~1.4) 相較於腔壓40 barA引擎的推力係數理論值 (~1.5) 較低，因此腔壓20 barA引擎的海平面Isp相較於腔壓40 barA引擎的Isp 低了約13 s，但是兩組引擎具有相近的Isp效率 (~94%)，且長時間的24秒hot-fire測試顯示Isp效率會因長時間燃燒而提升至97%。此外，氧化劑流量皆線性正比於推力與腔壓，判定係數 (R2) 也高於99%，實現混合式火箭引擎推力控制的優異性能。透過燃料耗蝕率與氧通量之關係式可知，低腔壓引擎在相同氧化劑通量下 (100 kg/m2s) 較腔壓40 barA引擎降低

了約15%的燃料耗蝕率，因此引擎的燃料耗蝕率會受到腔體壓力轉換的影響而變動，本論文也針對此現象歸納出一校正方法以預測不同腔壓下的燃料耗蝕率，此校正後的關係式可提供未來不同腔壓引擎燃料長度設計上的準則。最後將雙氧水貯存瓶的上游氮氣加壓壓力從約58 barA降低至38 barA並進行8秒hot-fire測試，結果顯示仍能得到與過往測試相當接近的Isp效率 (~94%)，而此特性除了能讓雙氧水及氮氣貯存瓶擁有輕量化設計的可能性，搭配具流量控制的控制閥也有利於未來箭體朝向blowdown type型式的設計，因此雙氧水加壓桶槽上的氮氣調壓閥 (N2 pressure regulator valve)

將可省去，得以降低供流系統的重量，並增加箭體的酬載能力，對於未來箭體輕量化將是一大優勢。