Results 341 to 350 of about 551,695 (385)

A review on the rheological behavior and formulations of ceramic suspensions for vat photopolymerization

, 2021
Vat photopolymerization is an additive manufacturing process that produces high-performance ceramic parts. A critical step in the process is the preparation of a suspension that meets the requirements of high ceramic loading and proper rheological ...
Í. L. Camargo, M. M. Morais, C. Fortulan, M. C. Branciforti   +3 more
semanticscholar   +1 more source

4D printing materials for vat photopolymerization

, 2021
Vat photopolymerization is a widely adopted additive manufacturing process category owing to its high accuracy and accessibility. These technologies utilize a light source to cure the surface of a vat filled with liquid photopolymer resin layer by layer ...
A. Andreu, P. Su, Jeong-Hwan Kim, Chin Siang Ng, Sanglae Kim, Insup Kim, Ji-Hyun Lee, Jinhong Noh, Alamelu Suriya Subramanian, Y. Yoon   +9 more
semanticscholar   +1 more source

Vat Photopolymerization 3D Printing of Advanced Soft Sensors and Actuators: From Architecture to Function

Advanced Materials & Technologies, 2021
Fabrication and assembly of flexible sensors and soft actuators play important roles in improving the performance of wearable electronics and soft robots.
Wenyu Zhao, Ziya Wang, Jianpeng Zhang, Xiaopu Wang, Yingtian Xu, Ning Ding, Zhengchun Peng   +6 more
semanticscholar   +1 more source

EU VAT frauds [PDF]

European Journal of Law and Economics, 2009
The paper analyzes the VAT frauds issues in the European Union after the abolition of the internal customs. All the suggested solutions based on the origin principle create distortions in the “one market” and have a doubtful efficiency. The reverse-charge regime for all business to business transactions joint with VAT at the last stage also creates ...
FEDELI, Silvia, Francesco Forte
openaire   +2 more sources

Major factors influencing the quantification of Nile Red stained microplastics and improved automatic quantification (MP-VAT 2.0).

Science of the Total Environment, 2020
Automated count of Nile Red fluorescent microplastics allows fast and reliable quantification. However, factors involving staining, digital camera conditions and settings introduce variability to the results.
J. C. Prata, Jorge R. Alves, J. D. da Costa, A. Duarte, T. Rocha-Santos   +4 more
semanticscholar   +1 more source

A new approach for routine quantification of microplastics using Nile Red and automated software (MP-VAT).

Science of the Total Environment, 2019
Microplastics are widespread contaminants in the environment. However, most identification protocols rely on long and subjective visual counting, which could be improved using staining dyes.
J. C. Prata, Vanessa Reis, J. T. Matos, J. D. da Costa, A. Duarte, T. Rocha-Santos   +5 more
semanticscholar   +1 more source

Evading by any means? VAT enforcement and payroll tax evasion in China

Journal of Economic Behavior and Organization, 2020
We study how the enforcement of value-added tax (VAT) affects Chinese firms’ evasion of payroll tax, which is collected by weakly empowered agencies.
Lixing Li, K. Liu, Zhuo Nie, Tianyang Xi
semanticscholar   +1 more source

A review on fabricating tissue scaffolds using vat photopolymerization.

Acta Biomaterialia, 2018
Vat Photopolymerization (stereolithography, SLA), an Additive Manufacturing (AM) or 3D printing technology, holds particular promise for the fabrication of tissue scaffolds for use in regenerative medicine.
Nicholas A. Chartrain, C. Williams, Abby R. Whittington   +2 more
semanticscholar   +1 more source

Reassessing the regressivity of the VAT

, 2020
This paper reassesses the often-made conclusion that the VAT is regressive, drawing on tax microsimulation models constructed for an unprecedented 27 OECD countries.
Alastair Thomas
semanticscholar   +1 more source

Vat Photopolymerization 3D Printing of Nanocomposites: A Literature Review

Journal of Micro and Nano-Manufacturing, 2019
Nanocomposites have been widely used to improve material properties. Nanoscale reinforcement materials in vat photopolymerization resins improve the hardness, tensile strength, impact strength, elongation, and electrical conductivity of the printed ...
A. Medellín, W. Du, Guanxiong Miao, J. Zou, Z. Pei, Chao Ma   +5 more
semanticscholar   +1 more source