Results 101 to 110 of about 57,012 (217)

Delhi’s VAT Department- Mixed Results and Lessons for GST [PDF]

The Value Added Tax (VAT) system is a system of indirect taxation that replaced the previous sales tax regime in India. Like its predecessor, VAT is implemented at the state level and applies to all goods traded within the state.
Garg, Rahul
core  

Programmable Porosity in Polymers via Microfluidic Templating and 3D Printing

Small Methods, EarlyView.
Fluid templating is a powerful way to produce porous polymers. Microfluidic technologies enable fine control over the dimension and packing of bubbles and droplets. Combined with additive manufacturing, microfluidic templating enables the creation of polymeric functionally graded porous materials in which both porosity and three‐dimensional geometry ...
Federico Serpe, Roberta Angelini, Andrea Barbetta, Vanessa Rosciardi   +3 more
wiley   +1 more source

Trade globalisation and the reform of customs valuation and VAT on importation of goods: the example of Thailand [PDF]

, 2000
PhDThe purpose of this thesis is to reform customs valuation law and VAT on importation of goods under trends in trade globalisation, using Thailand as the example. To achieve this purpose, a number of related topics (e.g. the 'notional' and 'positive'
Supanimitkulkit, Petcharat
core   +2 more sources

Role of interlayer bonding in mechanical-dielectric properties of Si3N4 via heat-assisted vat photopolymerization

Virtual and Physical Prototyping
Silicon nitride (Si3N4) ceramics serve as key load-bearing and electromagnetic wave-transmitting materials for radomes in hypersonic vehicles. Vat photopolymerization (VPP) additive manufacturing technology enables integrated forming of complex ...
Lijin Cheng, Boyu Sha, Pengxiang Hao, Yan Li, Chenxi Li, Mengjun Wang, Jiangpeng Wu, Xinxin Qi, Libin Zhao, Ning Hu   +9 more
doaj   +1 more source

Impact Absorption on 3D Printed Mouthguard Material in Selected Printing Angulations

Dental Traumatology, EarlyView.
ABSTRACT Background Sports‐related oral and craniofacial injuries are significant public health problems, and one‐third of these injuries result from sports activities. These injuries affect the quality of life and performance of athletes. Sports mouthguards are recommended to mitigate these injuries.
Siti Salwa Idris, Hiroshi Churei, Chenyuan Li, Thida Aung, Si Thu Kaung, Qiushuang Zhu, Esha Ishrat Jahan   +6 more
wiley   +1 more source

Optimizing diphenyl(2,4,6‐trimethylbenzoyl)phosphine oxide concentration and post‐curing time to balance mechanical properties and color stability in a three‐dimensional‐printed restorative resin

European Journal of Oral Sciences, EarlyView.
Abstract Three‐dimensional (3D) printing is widely used in dental restorations; however, optimization of photoinitiator concentration and post‐curing protocols remains critical to achieve a balance between mechanical and esthetic performance. This study evaluated the combined effect of diphenyl(2,4,6‐trimethylbenzoyl)phosphine oxide (TPO) concentration
Eloah Nunes de Almeida, Vinicius da Nóbrega Marques, Ido Luiz de Azevedo Feiten, André Luis Faria‐e‐Silva, Larissa Maria Cavalcante, Luis Felipe Schneider   +5 more
wiley   +1 more source

Assessing the influence of titanium dioxide nanotubes incorporation on thermal and thermomechanical characteristics of 3D‐printed denture base resin

Journal of Prosthodontics, EarlyView.
Abstract Purpose This study aims to evaluate the effects of adding titanium dioxide (TiO2) nanotubes (NTs) to three‐dimensional (3D) printed denture base resin on the thermal and thermomechanical properties, which have high clinical relevance. Materials and Methods TiO2 NTs with dimensions of 30–70 nm in diameter and 2–4 µm in length were added to the ...
Zaid Basil Al‐enbary, Ihab Nabeel Safi, Julfikar Haider   +2 more
wiley   +1 more source

Impact of monomer contamination of isopropanol during post‐rinsing on the accuracy of dental models fabricated by vat photopolymerization

Journal of Prosthodontics, EarlyView.
Abstract Purpose The aim of this study was to investigate the impact of an increasing level of monomer contamination of isopropanol (isopropyl alcohol [IPA]) during post‐rinsing on the dimensional stability of test samples produced by vat photopolymerization.
Florian Flierl, Benedikt C. Spies, Severin Rothlauf, Kirstin Vach, Ralf J. Kohal, Jörg Lüchtenborg   +5 more
wiley   +1 more source

Mechanical properties and hydration of 3D printed silicone-based contact lenses

Materials Today Advances
Digital light processing - based vat Photopolymerization (DLP) offers numerous opportunities for the fabrication of customized hydrogel structures; however, material limitations remain a key challenge for contact-lens-scale applications.
Ahmed M. Desoky, Mohammed Ayaz Uddin, Shahd B. Alshehhi, Shabir Hassan, Haider Butt   +4 more
doaj   +1 more source

Effects of printing temperature and post‐curing duration on the dimensional reproducibility and fracture load of 3D‐printed dental prostheses: An exploratory study

Journal of Prosthodontics, EarlyView.
Abstract Purpose This in vitro study aimed to evaluate the effects of printing temperature and post‐curing duration on the dimensional reproducibility and mechanical properties of three‐dimensional (3D)–printed dental prostheses. Materials and Methods Photopolymer specimens were fabricated using a stereolithographic 3D printer at two temperatures: room
Ji‐Min Lee, KeunBaDa Son, Kyu‐Bok Lee   +2 more
wiley   +1 more source