Large scale production of three dimensional carbon nanotube pillared graphene network for bi-functional optical properties

Carbon ◽  
2014 ◽  
Vol 78 ◽  
pp. 147-155 ◽  
Author(s):  
Reema Kamaliya ◽  
Bhanu Pratap Singh ◽  
Bipin Kumar Gupta ◽  
Vidya Nand Singh ◽  
Tejendra Kumar Gupta ◽  
...  
Keyword(s):  
Optical Properties ◽  
Carbon Nanotube ◽  
Large Scale ◽  
Three Dimensional ◽  
Scale Production ◽  
Large Scale Production

scholarly journals A Review on Additive Manufacturing Possibilities for Electrical Machines

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1940
Author(s):  
Muhammad Usman Naseer ◽  
Ants Kallaste ◽  
Bilal Asad ◽  
Toomas Vaimann ◽  
Anton Rassõlkin
Keyword(s):  
Additive Manufacturing ◽  
Large Scale ◽  
Three Dimensional ◽  
Electrical Machines ◽  
Electromagnetic Properties ◽  
Scale Production ◽  
Performance Parameters ◽  
Large Scale Production ◽  
One Step ◽  
Manufacturing Techniques

This paper presents current research trends and prospects of utilizing additive manufacturing (AM) techniques to manufacture electrical machines. Modern-day machine applications require extraordinary performance parameters such as high power-density, integrated functionalities, improved thermal, mechanical & electromagnetic properties. AM offers a higher degree of design flexibility to achieve these performance parameters, which is impossible to realize through conventional manufacturing techniques. AM has a lot to offer in every aspect of machine fabrication, such that from size/weight reduction to the realization of complex geometric designs. However, some practical limitations of existing AM techniques restrict their utilization in large scale production industry. The introduction of three-dimensional asymmetry in machine design is an aspect that can be exploited most with the prevalent level of research in AM. In order to take one step further towards the enablement of large-scale production of AM-built electrical machines, this paper also discusses some machine types which can best utilize existing developments in the field of AM.

scholarly journals 3D DNA structural barcode copying and random access

2020 ◽  
Author(s):  
Filip Bošković ◽  
Alexander Ohmann ◽  
Ulrich F. Keyser ◽  
Kaikai Chen
Keyword(s):  
Data Storage ◽  
Single Molecule ◽  
Self Assembly ◽  
Large Scale ◽  
Three Dimensional ◽  
Random Access ◽  
Scale Production ◽  
Digital Information ◽  
Dna Nanostructures ◽  
Large Scale Production

AbstractThree-dimensional (3D) DNA nanostructures built via DNA self-assembly have established recent applications in multiplexed biosensing and storing digital information. However, a key challenge is that 3D DNA structures are not easily copied which is of vital importance for their large-scale production and for access to desired molecules by target-specific amplification. Here, we build 3D DNA structural barcodes and demonstrate the copying and random access of the barcodes from a library of molecules using a modified polymerase chain reaction (PCR). The 3D barcodes were assembled by annealing a single-stranded DNA scaffold with complementary short oligonucleotides containing 3D protrusions at defined locations. DNA nicks in these structures are ligated to facilitate barcode copying using PCR. To randomly access a target from a library of barcodes, we employ a non-complementary end in the DNA construct that serves as a barcode-specific primer template. Readout of the 3D DNA structural barcodes was performed with nanopore measurements. Our study provides a roadmap for convenient production of large quantities of self-assembled 3D DNA nanostructures. In addition, this strategy offers access to specific targets, a crucial capability for multiplexed single-molecule sensing and for DNA data storage.

The effect of pressure and temperature on microthermoforming thermoplastic films integrated in the injection moulding process

2016 ◽  
Vol 36 (6) ◽  
pp. 597-605 ◽  
Author(s):  
Ariane Jungmeier
Keyword(s):  
Injection Moulding ◽  
Large Scale ◽  
Three Dimensional ◽  
Scale Production ◽  
Moulding Process ◽  
Cycle Times ◽  
Large Scale Production ◽  
Flow Length ◽  
Injection Moulding Process ◽  
Fitting In

Abstract Injection moulding is a widespread large-scale production technology for the manufacturing of thermoplastic parts, with small wall thicknesses limiting the feasible flow length. Introducing microthermoforming into the injection moulding process with dynamic mould temperature control enables the production of film-based, plane microstructured parts with further three-dimensional functional structures (e.g. for handling or for fitting in devices/assembly groups). Investigations show that considerable forming is possible with pressures up to 140 bar and forming temperatures far below the glass transition temperature of 50-μm-thick polycarbonate films in cycle times of <3 min. Generally speaking, the novel technology is expected to allow for multifunctional, thin-walled microstructured parts at large scales with short cycle times.

Synthesis of a New Monomer: 4,7-bis(5-phenylthiophen-2-yl)benzo[c][1,2,5]selenadiazole

2014 ◽  
Vol 707 ◽  
pp. 28-31
Author(s):  
Tao Hu ◽  
Li Ping Wang ◽  
Xiao Long Lei ◽  
Xiao Xia Sun
Keyword(s):  
Optical Properties ◽  
Blue Light ◽  
Fluorescence Spectra ◽  
Large Scale ◽  
Scale Production ◽  
Product Yields ◽  
Light Region ◽  
Large Scale Production ◽  
Donor Type ◽  
Donor Acceptor

A donor/acceptor/donor-type benzoselenadiazole-incorporated monomer was synthesized. The procedure described herein offer several advantages, including high product yields, easy purification and large scale production. Optical properties of the resulting compounds were examined by means of UV-vis and fluorescence spectroscopies. The fluorescence spectra exhibit that the emission maxima of material at 419 nm belongs to blue light region.

Preparation and Optical Properties of Fullerene/Ferrocene Hybrid Hexagonal Nanosheets and Large-Scale Production of Fullerene Hexagonal Nanosheets

2009 ◽  
Vol 131 (29) ◽  
pp. 9940-9944 ◽  
Author(s):  
Takatsugu Wakahara ◽  
Marappan Sathish ◽  
Kun’ichi Miyazawa ◽  
Chunping Hu ◽  
Yoshitaka Tateyama ◽  
...  
Keyword(s):  
Optical Properties ◽  
Large Scale ◽  
Scale Production ◽  
Large Scale Production

scholarly journals Synthesis and Electrochemical Performance of a Homogenously Dispersed LiaMn2-x-y- ZFexCoyNizO4-dCld Lithium Ion Battery Cathode Material

2020 ◽  
Author(s):  
Matthew Limpert ◽  
Terrill B. Atwater ◽  
Ashley L. Ruth
Keyword(s):  
Lithium Ion Battery ◽  
Large Scale ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Cobalt Content ◽  
Electrochemical Cells ◽  
Scale Production ◽  
Capacity Fading ◽  
Large Scale Production ◽  
Oxide Spinels

Lithium manganese oxide spinels are attractive materials for lithium-ion battery cathodes due to their capability for high voltage application paired with a three-dimensional conductive pathway that can allow for improved lithium insertion and deinsertion kinetics. However, this material suffers from limited cyclability as a result of the energy barriers for removing lithium from the octahedral sites and capacity fading as a result of manganese dissociation. This work incorporates a multiple doping strategy for selecting capacity distribution across various voltage regimes. The resulting electrochemical cells are able to produce useful capacity at 5.2 V, 4.7 V, 4.1 V, and 2.75 V. Additionally, materials synthesized in a laboratory setting and via large scale production via licensing with no cobalt content has resulted in capacities exceeding 200 mAh/g. These materials achieve 75% capacity retention at 3C vs. C/10 discharge down to 2.75 V.

scholarly journals Crack engineering for the construction of arbitrary hierarchical architectures

2019 ◽  
Vol 116 (48) ◽  
pp. 23909-23914 ◽  
Author(s):  
Wanbo Li ◽  
Miao Yu ◽  
Jing Sun ◽  
Kentaro Mochizuki ◽  
Siyu Chen ◽  
...  
Keyword(s):  
Large Scale ◽  
Signal Transmission ◽  
Three Dimensional ◽  
Hierarchical Structures ◽  
Cost Effective ◽  
Scale Production ◽  
Biomimetic Materials ◽  
Large Scale Production ◽  
Elastic Crack ◽  
The Cost

Three-dimensional hierarchical morphologies widely exist in natural and biomimetic materials, which impart preferential functions including liquid and mass transport, energy conversion, and signal transmission for various applications. While notable progress has been made in the design and manufacturing of various hierarchical materials, the state-of-the-art approaches suffer from limited materials selection, high costs, as well as low processing throughput. Herein, by harnessing the configurable elastic crack engineering—controlled formation and configuration of cracks in elastic materials—an effect normally avoided in various industrial processes, we report the development of a facile and powerful technique that enables the faithful transfer of arbitrary hierarchical structures with broad material compatibility and structural and functional integrity. Our work paves the way for the cost-effective, large-scale production of a variety of flexible, inexpensive, and transparent 3D hierarchical and biomimetic materials.

scholarly journals Mn4+doped fluorotitanate phosphors: synthesis, optical properties and application in LED devices

RSC Advances ◽  
2017 ◽  
Vol 7 (51) ◽  
pp. 32094-32099 ◽  
Author(s):  
Qiang Zhou ◽  
Huiying Tan ◽  
Qiuhan Zhang ◽  
Nan Wang ◽  
Qianwen Wei ◽  
...  
Keyword(s):  
Optical Properties ◽  
Large Scale ◽  
Reaction Medium ◽  
Scale Production ◽  
Preparation Process ◽  
Red Phosphors ◽  
Large Scale Production ◽  
The Future

Green and safe HAc acid was used as the reaction medium in the preparation process of Mn4+doped A2TiF6(X = Na, K and Cs) red phosphors, which is beneficial for the potential large scale production in the future.

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