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The Dzog-chen
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Rise of the Demon God
[Webnovel provides the latest update of Rise of the Demon God novels] "The trials ahead to prove my worth? I'll crush them !! Enemies? I'll slaughter them!! " Waking up in a new body and a new world after dying on Earth, Long Chen embarks on a new journey in a world filled with gods and demons. A world where myriad of life forms exist and humans can cultivate and become immortals. Watch him rise to prominence with a supreme inheritance and his hard work as he slaughtered everyone who stood in his path. Watch His journey as he became known in the Universe as the Demon God, the ruler of death forcing the heavens to bow before him. Known as the second inheritor, what happened to the first one? Who does this legacy belongs to? What secrets is the universe hiding?
The Dzog-chen
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Facile synthesis of heteroporous covalent organic frameworks with dual linkages: a “three-in-one” strategy
Covalent organic frameworks (COFs) with dual linkages can combine advantages and properties of two distinct connectors, enabling the development of multifunctional materials. However, due to challenges in simultaneously forming two types of linkages, the synthesis of COFs with dual linkages remains a significant challenge. Herein, we propose a “three-in-one” molecular design strategy for synthesizing COFs with dual linkages (4-amino-4"-(2,2-dioxan-1,3-dioxan-5-yl)-[1,1':3',1"-terphenyl]-5'-yl) boronic acid (ADTB)-COF and (4'-amino-5'-(4-(2,2-dioxan-1,3-dioxan-5-yl)phenyl)-[1,1':3',1'-teroxan]-5-yl) boronic acid (ADPB)-COF through reversible condensation between three distinct functionalization groups on the monomer. Benefitting from the abundant micropores and high surface area, ADPB-COF showed excellent selective adsorption capability of C3H8 over CH4 (174, 298 K/1 bar). The present work introduces a new approach for constructing COFs with dual linkages, which greatly simplifies the synthesis process and provides a novel opportunity to develop functional materials based on COFs with multi-linkages.
Bearing Tribology
By focusing on the theory and techniques of tribological design and testing for bearings, this book systematically reviews the latest advances in applications for this field. It describes advanced tribological design, theory and methods, and provides practical technical references for investments in bearing design and manufacturing. The theories, methods and cases in this book are largely derived from the practical engineering experience gained and research conducted by the author and her team since the 2000s. The book includes academic papers, technical reports and patent literature, and offers a valuable guide for engineers involved in bearing design. The book is intended for engineers, researchers and graduate students in the field of mechanical engineering, especially in bearing engineering.
