Results 61 to 70 of about 11,337 (309)

Extrusion Bioprinting for Wound Healing: Innovations in Functionalized Bioinks and Bioprinting Technology

open access: yesAdvanced Materials Technologies, EarlyView.
Extrusion‐based bioprinting (EBB) has emerged as a versatile biofabrication platform capable of precisely depositing bioinks composed of biomaterials, cells, and bioactive agents to generate patient‐specific, biomimetic skin constructs. This paper presents a state‐of‐the‐art and forward‐looking overview of EBB for wound healing, encompassing printing ...
Hien‐Phuong Le   +4 more
wiley   +1 more source

Toward Prostate Cancer Early Warning with a Self‐Powered Wearable Biosensing Platform Integrated with Machine Learning

open access: yesAdvanced Science, EarlyView.
ABSTRACT Current prostate cancer detection methods remain limited in non‐invasiveness and specificity, prompting interest in urinary biomarkers such as sarcosine. Here, we report a urine‐powered wearable platform for non‐invasive sarcosine detection as a proof‐of‐concept for decentralized early warning.
Jing Xu   +10 more
wiley   +1 more source

Electrochemical Properties of Hollow Spherical Na3V2(PO4)3/C Cathode Materials for Sodium-ion Batteries

open access: yesInternational Journal of Electrochemical Science, 2017
Hollow Spherical Na3V2(PO4)3/C cathode materials were successfully synthesized by a simple spray drying method. The structure and morphology of the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission
Chunmei Huang   +5 more
doaj   +1 more source

Insights Into CO2 Loss, pH Effects, and Tafel Kinetics in Ni Single Atom‐Driven Bicarbonate Electroreduction

open access: yesAdvanced Science, EarlyView.
Selective CO formation in bicarbonate electrolysis is achieved by retaining reactive CO2 and tuning pH, while the competing hydrogen evolution reaction occurs at the interface. The rate‐determining step couples the chemical equilibrium of bicarbonate/CO2 with electrochemical charge transfer, offering insight into optimizing reaction conditions for ...
Lin Li   +7 more
wiley   +1 more source

Progress in Experimental Study of Plume Plasma Discharge Characteristics of the Hollow Cathode

open access: yes气体物理
With the continuous maturation and sustained application of electric propulsion technology, electric propulsion is becoming the preferred choice of space propulsion for deep space exploration missions with its high specific impulse advantage. Among them,
Jintao JIA, Long MIAO, Yugan LIAO
doaj   +1 more source

Hollow Structured LiFePO4 /C Microspheres in situ Prepared by a One-Pot Template-Free Method as Cathode for Lithium-Ion Batteries

open access: yesInternational Journal of Electrochemical Science, 2018
The effective control of the nanostructure is recognized as an effective method for improving the electrochemical performance of the LiFePO4 cathode; nevertheless, it is still a great challenge to simultaneously achieve high tap density and excellent ...
Yuan Jin, Haiyan Wang, Xincun Tang
doaj   +1 more source

PPU for a small, low power and low cost EPS [PDF]

open access: yesMATEC Web of Conferences, 2019
The objective of this paper is to present the design of the Power Processing Unit (PPU) of the Microsatellite Electric Propulsion System (MEPS) program currently being developed at Elegant Bread Board (EBB).
Savvas Spiridon   +2 more
doaj   +1 more source

A Triple‐Nanoparticle System for Controlled Graphene Nanosheet Stacking: Enabling K/Na‐Ion Battery Anodes with Ultra‐Fast Charging Exceeding Petroleum Vehicle Refueling

open access: yesAdvanced Science, EarlyView.
ABSTRACT Large‐ion (K, Na) battery systems mitigate uneven global lithium distribution, while their ability to attain recharge time shorter than refueling would remove the final barrier for secondary batteries to replace petroleum vehicles. However, their large‐ion chemistry makes ultra‐fast charging an even significant challenge.
Shukai Ding   +12 more
wiley   +1 more source

Hollow cathode life time modelling

open access: yes, 2008
Hollow Cathodes (HCs) are of primary importance in the field of electric space propulsion, being used as electron sources in ion and Hall-effect thrusters.
Coletti, Michele
core  

eppdyl/cathode-database: Version 1.0.2

open access: yes, 2021
<p>A database of thermionic, orificed hollow cathode data. Corresponding publication:</p> <p>P.-Y. C. R. Taunay, C. J. Wordingham, and E. Y. Choueiri.
Pierre-Yves Taunay
core   +1 more source

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