Results 121 to 130 of about 36,956,441 (286)

Experience of the Construction and Management System of Marine National Parks in the United States and Its Implications for China

open access: yesHaiyang Kaifa yu guanli
Marine national parks serve as important carriers for ecological civilization construction. As a forerunner in global marine national parks, the management system experience of the United States holds significant reference value for China to establish a ...
QI Xuewei, ZHOU Wencui
doaj  

Charge‐Polarized Ni─S4 Single‐Atom Sites Drive Selective Photoreforming of Poly(lactic acid) to Lactate and Hydrogen

open access: yesAdvanced Functional Materials, EarlyView.
Atomically dispersed Ni–S4 sites on CdS nanorods induce interfacial charge polarization, directing photogenerated electrons to H2 evolution and holes to selective ester‐bond cleavage of poly(lactic acid). Without sacrificial reagents, this charge‐coupled system produces lactate while suppressing overoxidation, achieving an H2 evolution rate of 41.74 ...
Yu Yao   +8 more
wiley   +1 more source

Minutes of Meetings of the Appalachian National Park Association

open access: yes, 2015
This 248-page bound notebook contains the minutes of the meetings of the Appalachian National Park Association and the Appalachian National Forest Reserve Association.
Appalachian National Park Association; Appalachian National Forest Reserve Association
core  

Bioinspired Hydrogels with Broadly Programmable Mechanics for Soft‐Tissue Interfaces

open access: yesAdvanced Functional Materials, EarlyView.
Sea cucumber‐inspired gelatin hydrogels are formed by directional freezing and mechanically programmed through subsequent ionic treatment. Multiscale characterization and modeling link ion‐regulated chain interactions to directional load transfer within the aligned hierarchical architecture.
Youchao Teng   +20 more
wiley   +1 more source

Site for the Appalachian National Park

open access: yes, 2015
This letter to the editor, titled “Site for the Appalachian National Park,” was sent out by the Appalachian National Park Association. The written number at the top of the printed page suggests that 500 of these were printed and distributed. The focus of
Appalachian National Park Association;
core  

Biodegradable 3D‐Printable and Coatable Antifouling Composites for Marine Applications

open access: yesAdvanced Functional Materials, EarlyView.
Marine biofouling damages submerged surfaces and raises greenhouse gas emissions. Biodegradable antifouling biocomposites were developed by hot‐mixing beeswax, Tween 80, and calcium stearate or stearic acid. Adjusting the component ratio enables processing via hot‐pressing, 3D‐printing, or dip‐coating.
Gabriele Corigliano   +17 more
wiley   +1 more source

Unique Role of Microstructure of a Bioimplant Zinc Alloy and Protein Content of Simulated Body Fluid in Corrosion and Fracture

open access: yesAdvanced Functional Materials, EarlyView.
BSA addition to physiological solutions enhances resistance of a Zn alloy to stress corrosion cracking (SCC) but reduces its corrosion resistance. Extended surface characterization explains the contrasting influences on corrosion and SCC. Unexpectedly, the alloy suffers transgranular SCC (TGSCC), despite extensive grain boundary precipitation. Thorough
RK Singh Raman   +9 more
wiley   +1 more source

Path and Practice of Gap Management in National Parks: A Comparison Between China and the US and Inspirations Therefrom

open access: yesFengjing Yuanlin
ObjectiveThis research examines the concept and management practices of “gap” (also known as “sky window”) in national parks, focusing on China and the US.
Yun MA, Siyuan HE
doaj   +1 more source

Legislation Secured by the Appalachian National Park Association

open access: yes, 1901
These 14 pages include several drafts of a document titled, “Legislation Secured by the Appalachian National Park Association.” The documents outline the early efforts and successes of the Appalachian National Park Association.
Appalachian National Park Association;
core  

XTRUDE: A Process‐Informed Framework for High‐Fidelity Analysis of Hydrogel Extrusion

open access: yesAdvanced Functional Materials, EarlyView.
Extrusion performance emerges from the interplay between material properties and processing conditions. XTRUDE (eXTrusion Rheology for Understanding and Defining Extrudability) recreates the extrusion environment with in situ pressure and temperature sensing, enabling characteristic pressure signatures to quantify extrusion‐specific phenomena and ...
Farhad Sanaei   +4 more
wiley   +1 more source

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