Combined microfluidization and ultrasonication: a synergistic protocol for high-efficient processing of SWCNT dispersions with high quality

2016 ◽  
Vol 18 (8) ◽  
Author(s):  
Sida Luo ◽  
Tao Liu ◽  
Yong Wang ◽  
Liuhe Li ◽  
Guantao Wang ◽  
...  
Keyword(s):  
High Quality ◽  
High Efficient ◽  
Efficient Processing

scholarly journals APPLICATIONS OF COMPUTER VISION IN AGRICULTURE

2021 ◽  
Vol 5 (9) ◽  
Author(s):  
Pranav Ghadge ◽  
Riddhik Tilawat ◽  
Prasanna Sand ◽  
Parul Jadhav
Keyword(s):  
Artificial Intelligence ◽  
Remote Sensing ◽  
Computer Vision ◽  
Educational Technology ◽  
Satellite System ◽  
High Quality ◽  
Agricultural Applications ◽  
Efficient Processing

Satellite system advances, remote sensing and drone technology are continuing. These progresses produce high-quality images that need efficient processing for smart agricultural applications. These possibilities to merge computer vision and artificial intelligence in agriculture are exploited with recent deep educational technology. This involves essential phenomena of data and huge quantities of data stored, analysed and used when making decisions. This paper demonstrates how computer vision in agriculture can be used.

Welding of Thicker Steel Joints of Container Ships

2007 ◽  
Vol 23 (01) ◽  
pp. 46-52
Author(s):  
Osamu Baba ◽  
Yasuhisa Okumoto ◽  
Akinori Abe
Keyword(s):  
Plate Thickness ◽  
High Heat ◽  
Steel Plates ◽  
High Quality ◽  
Butt Welding ◽  
High Efficient ◽  
Steel Maker ◽  
Co2 Welding ◽  
High Heat Input ◽  
Steel Joints

Recently, many container ships have been built worldwide, and the size of them is skyrocketing to 10, 000 TEU (Twenty Equivalent Unit) capacity. As a result, the plate thickness in the area of upper deck torsion box becomes thicker and thicker with higher-strength steel, up to 60 mm, to keep longitudinal strength, and then the welding work becomes more difficult and severe. For such joints of super thick plates IHI Marine United Inc. Kure shipyard has established high-quality and high-efficient welding methods:Development of new steel plates. In order to weld the thicker plates by high heat input such as 450 KJ/cm, new steel plates were applied in cooperation with a steel maker in Japan.Automation of butt welding. Electro-gas arc welding was applied for skin plates, and CO2 welding robot system was also introduced for longitudinals around the torsion box.Establishment of high quality welding practice. Welding without defects became possible by establishing adequate groove shape and welding procedure, as a result of many welding tests and inspections. This paper describes the improved methods and the test results in detail.

scholarly journals Additive Modulated Perovskite Microstructures for High Performance Photodetectors

Micromachines ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1090
Author(s):  
Zhan Gao ◽  
Yifan Zheng ◽  
Guancheng Huang ◽  
Genjie Yang ◽  
Xinge Yu ◽  
...  
Keyword(s):  
Molecular Interactions ◽  
Dark Current ◽  
High Performance ◽  
Visible Region ◽  
Carbonyl Groups ◽  
High Quality ◽  
Inorganic Hybrid ◽  
Simple Route ◽  
High Efficient ◽  
Crystallographic Defects

Organic-inorganic hybrid perovskites have been widely used as light sensitive components for high-efficient photodetectors due to their superior optoelectronic properties. However, the unwanted crystallographic defects of perovskites typically result in high dark current, and thus limit the performance of the device. Herein, we introduce a simple route of microstructures control in MAPbI3 perovskites that associates with introducing an additive of 3,3,4,4-benzophenonetetracarboxylic dianhydridean (BPTCD) for crystallization adjustment of the perovskite film. The BPTCD additive can facilitate the formation of high-quality perovskite film with a compact and nearly pinhole-free morphology. Through characterizing the molecular interactions, it was found that the carbonyl groups in BPTCD is the key reason that promoted the nucleation and crystallization of MAPbI3. As a result, we obtained high-efficient and stable perovskite photodetectors with low dark current of 9.98 × 10−8 A at −0.5 V, an on/off ratio value of 103, and a high detectivity exceeding 1012 Jones over the visible region.

Numerical Study on the CZ Silicon Melt Convection for High Efficient Solar Cell

Solar Energy ◽  
2003 ◽  
Author(s):  
Tetsuo Munakata ◽  
Satoshi Someya
Keyword(s):  
Magnetic Field ◽  
Solar Cell ◽  
High Frequency ◽  
High Quality ◽  
High Efficient ◽  
Silicon Melt ◽  
Frequency Magnetic Field ◽  
High Frequency Magnetic Field ◽  
Melt Convection

Conversion efficiency of solar cell is strongly affected by quality of substrate and the quality of substrate is influenced by melt convection if the substrate crystal is grown by melt growth technique. Therefore, melt convection control techniques are important to produce a high quality single crystal. In this paper, we have proposed a high frequency magnetic field applied CZ method and investigated the effect of high frequency magnetic field on silicon melt convection. The result reveals that the high frequency magnetic fields affect the tendency of the melt convection: until certain intensity of the high frequency magnetic field, the melt convection is suppressed and above such intensity of the high frequency magnetic field, the melt convection intensity is enhanced. This result indicates that the melt convection can be controlled by the high frequency magnetic field and the high quality silicon single crystals will be grown by this method.

Study on Construction of Tyre Tread Pattern Mold and its Machining with 3-Axis Numerical Control

2011 ◽  
Vol 215 ◽  
pp. 212-216
Author(s):  
Hai Bo Lin ◽  
Zhe Guang Hu ◽  
Wen Hui Zhao
Keyword(s):  
Three Dimensional ◽  
Numerical Control ◽  
New Method ◽  
Control Technology ◽  
High Quality ◽  
Block Processing ◽  
Efficient Processing

Tyre tread pattern mainly accounts for tyre performance and its endurance. In tyre mold processing, pattern block processing is technologically disturbing, of which the tread pattern is the most challenging. This article first analyses the function conversion of the points from point to plane to space along the tyre tread curve. Aided by GRIP language, it continues to make tread section with spatial curve, and then with the help of UG scanning order, it produces a three-dimensional diorama of accurate tyre pattern. To solve the problem of large errors arising in tyre mold processing with 3 axis numerical control technology, the article proposes a new method to produce tyre tread pattern with 3 axis technology and validates the method. The research contributes to dividing processing of tyre tread pattern, and reducing errors theoretically. Experiments had been done to illustrate that the method can achieve high quality and efficient processing.

Research on NC Electrochemical Mechanical Drilling

2012 ◽  
Vol 271-272 ◽  
pp. 476-482
Author(s):  
Wei Min Gan ◽  
Bo Xu ◽  
Zhi Fang Zhao
Keyword(s):  
Stainless Steel ◽  
Electrochemical Machining ◽  
304 Stainless Steel ◽  
High Temperature Alloy ◽  
Mechanical Grinding ◽  
High Quality ◽  
Taper Angle ◽  
Composite Cathodes ◽  
High Efficient ◽  
Drilling Method

NC electrochemical mechanical drilling was based on NC, Electrochemical machining and mechanical grinding. It drilled with different diameter composite cathodes. This kind of drilling method took the advantages of electrochemical mechanical, so it was not restricted by parts’ strength, hardness and stiffness. The cover of cathode ensured the drilling precision. So this technology should be studied. This paper took 304 stainless steel and high temperature alloy GH710 to do study, at last the reasonable and high efficient process parameters were found in the experiment. The high quality holes of better roundness and small taper angle were drilled. The results showed that the study of NC electrochemical mechanical drilling difficult-to-machine materials was very meaningful.

Optical and Structural Properties of TOPO/HDA Capped CuS Nanocrystals via Thermal Decomposition of Bis(N-Diisopropyldithiocarbamate)Cu(II) Complex

2019 ◽  
Vol 59 ◽  
pp. 161-165 ◽  
Author(s):  
Johannes Z. Mbese ◽  
Peter A. Ajibade ◽  
Funeka Matebese ◽  
Mojeed A. Agoro
Keyword(s):  
Thermal Decomposition ◽  
Metal Sulfide ◽  
Trioctylphosphine Oxide ◽  
Single Source ◽  
High Quality ◽  
Sem Images ◽  
Molecular Precursor ◽  
High Efficient ◽  
Synthetic Routes ◽  
Surface Morphologies

We present the rational synthesis of novel nanocrystals CuS (nc-CuS) by single source molecular precursor (SSMP) method. Among the present materials synthetic routes, the SSMP route is high efficient and comfortable way to construct nanostructured materials. Both CuS nanocrystals capped with hexadecylamine (HDA) and trioctylphosphine oxide (TOPO) have been synthesized by thermolysing bis (N-diisopropyldithiocarbamate)Cu (II) complex at 180 °C. Various physicochemical characterizations such as SEM images of nc-CuS exhibited uniform exfoliated surface morphologies with uniform continuous network of about 50 μm agglomerated particles. Our method could be broadly applicable for the preparation of other high quality yield metal sulfide nanostructures

scholarly journals Genomic resources of broomcorn millet: demonstration and application of a high-throughput BAC mapping pipeline

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Wei Xu ◽  
Mengjie Liang ◽  
Xue Yang ◽  
Hao Wang ◽  
Meizhong Luo
Keyword(s):  
Bac Library ◽  
Research Process ◽  
High Quality ◽  
Bac Clones ◽  
Broomcorn Millet ◽  
High Efficient ◽  
Sequencing Strategy ◽  
End Sequences ◽  
Genomic Resource ◽  
Efficient Water Use

Abstract Background With high-efficient water-use and drought tolerance, broomcorn millet has emerged as a candidate for food security. To promote its research process for molecular breeding and functional research, a comprehensive genome resource is of great importance. Results Herein, we constructed a BAC library for broomcorn millet, generated BAC end sequences based on the clone-array pooled shotgun sequencing strategy and Illumina sequencing technology, and integrated BAC clones into genome by a novel pipeline for BAC end profiling. The BAC library consisted of 76,023 clones with an average insert length of 123.48 Kb, covering about 9.9-fold of the 850 Mb genome. Of 9216 clones tested using our pipeline, 8262 clones were mapped on the broomcorn millet cultivar longmi4 genome. These mapped clones covered 308 of the 829 gaps left by the genome. To our knowledge, this is the only BAC resource for broomcorn millet. Conclusions We constructed a high-quality BAC libraray for broomcorn millet and designed a novel pipeline for BAC end profiling. BAC clones can be browsed and obtained from our website (http://eightstarsbio.com/gresource/JBrowse-1.16.5/index.html). The high-quality BAC clones mapped on genome in this study will provide a powerful genomic resource for genome gap filling, complex segment sequencing, FISH, functional research and genetic engineering of broomcorn millet.

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