Results 121 to 130 of about 1,116,944 (337)

Effect of PBAT content on performance of PLA based degradable blend slice and composite meltblown nonwovens

open access: yesCailiao gongcheng
Taking polylactic acid (PLA) as matrix, poly(butylene adipate-co-terephthalate) (PBAT) as toughening agent and polyethylene glycol (PEG) as plasticizer and compatibilizer, PLA/PBAT/PEG blends with different PBAT contents were prepared by melt-blending ...
HE Yuguang   +3 more
doaj   +1 more source

Enhancement on Mechanical and Thermal Properties of PLA Biocomposites Due to the Addition of Hybrid Sisal Fibers

open access: yesJournal of Natural Fibers, 2017
Hybrid sisal fibers (HSFs) were made by mixing untreated sisal fibers (USFs) with alkali treated sisal fibers (ASFs), and blended with PLA matrix to make PLA/HSFs composite.
Zhihua Zhu   +3 more
doaj   +1 more source

Knowles, Kolb, & Google: Prior Learning Assessment as a Model for 21st-Century Learning

open access: yes, 2018
For adult students who have committed anew to completing a four-year bachelor’s degree, prior learning assessment (PLA) can be a surprising bonus that affirms their previous life experiences, shortens the degree completion pathway, and ultimately lowers ...
Casey, Rae   +2 more
core  

Unraveling Quantitative Sensing Mechanism and Predictive Molecular Metrics for High‐Performance OFET Amine Sensors

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a novel chloro boron subphthalocyanine/polymer blend OFET sensor achieving 0.005 ppb limit of detection for ammonia at room temperature and high selectivity against similar amines. An original theoretical framework is proposed to describe the sensing mechanism, relating analyte molecular volume and Lewis basicity to sensor ...
Kavinraaj Ella Elangovan   +6 more
wiley   +1 more source

Regular triangulations of dynamic sets of points [PDF]

open access: yes, 2000
The Delaunay triangulations of a set of points are a class of triangulations which play an important role in a variety of different disciplines of science. Regular triangulations are a generalization of Delaunay triangulations that maintain both
Pla García, Núria, Vigo Anglada, Marc
core   +1 more source

MAGTWIST: A Magnetically‐Driven Rotary Actuator Using a Traveling‐Wave With Integrated Stiffness Tunability

open access: yesAdvanced Functional Materials, EarlyView.
MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler   +3 more
wiley   +1 more source

THE SITUATION IN TIBET IN THE 1950S: POLICY OF MAO ZEDONG AND THE DALAI LAMA

open access: yesRUDN Journal of World History, 2014
In the article on the basis of documents and memoirs, as well as using the literature, which deals with an important moment in the history of modern China, the author studies the events in the middle of the last century that led to the PLA troops ...
Zhong Rui
doaj  

Evaluation of the Diagnostic Performance of mNGS in Detecting Intra-Abdominal Infections of the Emergency Department Patients

open access: yesInfection and Drug Resistance, 2023
Liang Zheng,1,* Zhoujun Kang,1,* Ru Wang,2 Meng Lv,2 Zhirui Gao,1 Haizhou Xu,1 Meitang Wang1 1Emergency Department, Changhai Hospital Affiliated to Navy Medical University, Shanghai, People’s Republic of China; 2Genoxor Medical Science and ...
Zheng L   +6 more
doaj  

Biointerface Membranes Orchestrating Site‐Specific Osteoimmunomodulatory and Antibacterial Effects for Enhanced Osseous Regeneration in Periodontal Therapy

open access: yesAdvanced Functional Materials, EarlyView.
Here, a biointerface membrane engineered with site‐specific interfacial properties is developed. During implantation between gingival and bone defect, the membrane creates a pro‐osteogenic microenvironment, precisely modulates cellular activities at each biointerface, and facilitates the orchestration of complex healing events, ultimately leading to ...
Yuwei Zhu   +13 more
wiley   +1 more source

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