Light induced in situ post-modification of clay-chromophore hybrids for multiple white light emissions

2016 ◽  
Vol 4 (14) ◽  
pp. 2748-2751 ◽  
Author(s):  
Ankit Jain ◽  
Amritroop Achari ◽  
Muthuswamy Eswaramoorthy ◽  
Subi J. George
Keyword(s):  
White Light ◽  
Soft Clay ◽  
Post Modification

In this study, soft clay chromophore hybrids were used to demonstrate a photo-modification strategy, in which one white light standard can be converted into another via in situ generation of a blue emitting chromophore.

Prospective White-light Imaging and In Situ Measurements of Quiescent Large-scale Solar-wind Streams from the Parker Solar Probe and Solar Orbiter

2018 ◽  
Vol 868 (2) ◽  
pp. 137 ◽  
Author(s):  
Ming Xiong ◽  
Jackie A. Davies ◽  
Xueshang Feng ◽  
Bo Li ◽  
Liping Yang ◽  
...  
Keyword(s):  
Solar Wind ◽  
White Light ◽  
Large Scale ◽  
In Situ Measurements ◽  
White Light Imaging

scholarly journals Fabrication of High-Performance Thin-Film Composite Nanofiltration Membrane by Dynamic Calcium-Carboxyl Intra-Bridging during Post-Treatment

Membranes ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 137
Author(s):  
Hongyi Han ◽  
Ruobin Dai ◽  
Zhiwei Wang
Keyword(s):  
Thin Film ◽  
Water Purification ◽  
High Performance ◽  
Rejection Rate ◽  
Post Treatment ◽  
Nanofiltration Membrane ◽  
Film Composite ◽  
Thin Film Composite ◽  
Post Modification

Widespread applications of nanofiltration (NF) and reverse osmosis (RO)-based processes for water purification and desalination call for high-performance thin-film composite (TFC) membranes. In this work, a novel and facile modification method was proposed to fabricate high-performance thin-film composite nanofiltration membrane by introducing Ca2+ in the heat post-treatment. The introduction of Ca2+ induced in situ Ca2+-carboxyl intra-bridging, leading to the embedment of Ca2+ in the polyamide (PA) layer. This post modification enhanced the hydrophilicity and surface charge of NF membranes compared to the pristine membrane. More interestingly, the modified membrane had more nodules and exhibited rougher morphology. Such changes brought by the addition of Ca2+ enabled the significant increase of water permeability (increasing from 17.9 L·m−2·h−1·bar−1 to 29.8 L·m−2·h−1·bar−1) while maintaining a high selectivity (Na2SO4 rejection rate of 98.0%). Furthermore, the intra-bridging between calcium and carboxyl imparted the NF membranes with evident antifouling properties, exhibiting milder permeability decline of 4.2% (compared to 16.7% of NF-control) during filtration of sodium alginate solution. The results highlight the potential of using Ca2+-carboxyl intra-bridging post-treatment to fabricate high-performance TFC membranes for water purification and desalination.

scholarly journals Basic Mechanical Parameter Relations of Soft Clay in Pearl River Delta

2014 ◽  
Vol 8 (1) ◽  
pp. 320-325 ◽  
Author(s):  
Zhangming Li ◽  
Na Qi ◽  
Zhibin Masumi ◽  
Weidi Lin
Keyword(s):  
Shear Strength ◽  
Pearl River Delta ◽  
Large Scale ◽  
Soft Clay ◽  
River Delta ◽  
Pearl River ◽  
Cylindrical Cavity Expansion ◽  
In Situ Data ◽  
The Pearl River

Basic parameters relations among CPT parameters, un-drained strength and other mechanical parameters of soft clay are presented based on an elastic-plastic solution for cylindrical cavity expansion for soil investigation in energy engineering. The relation between CPT parameters and shear strength from vane test is also presented based on the result. Thus, the CPT parameters can be determined directly by elastic parameters and shear strength or vane shear parameters and vice versa. That makes it possible to save the high test costs and provide theoretical formulas to avoid some tests which are limited due to the site and/or other condition. Results are compared between the relations and in situ data at a large-scale project in the Pearl River Delta. The results showed consistency between the relation and in situ data.

Test fill on soft plastic marine clay at Onsøy, Norway

2014 ◽  
Vol 51 (1) ◽  
pp. 30-50 ◽  
Author(s):  
Toralv Berre
Keyword(s):  
Soft Clay ◽  
Marine Clay ◽  
Coefficient Of Consolidation ◽  
Geotechnical Parameters ◽  
Second Stage ◽  
Direct Simple Shear ◽  
Rapid Construction ◽  
Loading Case ◽  
The Town

The test fill at Onsøy, close to the town of Fredrikstad in Norway, was built on a very soft marine clay with in situ vane strength as low as 11 kPa and a plasticity index varying from 34 to 50. The dimensions at the bottom of the long fill were 20 m × 60 m and the height 2.3 m. The fill, as placed, had a computed factor of safety against foundation failure of 1.35 based on in situ vane strength. The fill was allowed to sit for about 3 years (from 1972 to 1975) before it, in a second stage, was brought to failure by raising the height. The main purpose of the first stage was to study the stress–strain–time relationships for the soft clay and compare the values of geotechnical parameters determined by careful laboratory tests with those back-calculated from the observed field behaviour. The test fill foundation was heavily instrumented to measure clay deformations and pore pressures with time. Field observations showed that the Onsøy test fill turned out to be more of a drained loading case than an undrained case in spite of the fairly rapid construction of the fill. Actually, subsequent undrained triaxial and direct simple shear tests strongly indicate that the fill might have failed if less drainage had taken place, i.e., if the drainage paths had been longer and (or) if the coefficient of consolidation had been lower.

scholarly journals Early Localization of Bronchogenic Carcinoma

1994 ◽  
Vol 1 (2) ◽  
pp. 75-78 ◽  
Author(s):  
S. Lam ◽  
C. Macaulay ◽  
J. C. Leriche ◽  
N. Ikeda ◽  
B. Palcic
Keyword(s):  
Lung Cancer ◽  
Head And Neck Cancer ◽  
White Light ◽  
Small Cell ◽  
Severe Dysplasia ◽  
Small Cell Lung ◽  
Imaging Device ◽  
Normal Tissues ◽  
Resected Stage

The performance of a fluorescence imaging device was compared with conventional white-light bronchoscopy in 100 patients with lung cancer, 46 patients with resected stage I non-small cell lung cancer, 10 patients with head and neck cancer, and 67 volunteers who had smoked at least 1 pack of cigarettes per day for 25 years or more. Using differences in tissue autofluorescence between premalignant, malignant, and normal tissues, fluorescence bronchoscopy was found to detect significantly more areas with moderate/severe dysplasia or carcinoma in situ than conventional white-light bronchoscopy with a similar specificity. Multiple foci of dysplasia or cancer were found in 13–24% of these individuals. Fluorescence bronchoscopy may be an important adjunct to conventional bronchoscopic examination to improve our ability to detect and localize premalignant and early lung cancer lesions.

Fabrication of amorphous phase encrusted oxynitride phosphor with white-light emission via in situ penetration

2012 ◽  
Vol 22 (3) ◽  
pp. 824-826 ◽  
Author(s):  
Zhi-yong Mao ◽  
Ying-chun Zhu ◽  
Lin Gan ◽  
Fang-fang Xu ◽  
Yang Wang ◽  
...  
Keyword(s):  
Amorphous Phase ◽  
White Light ◽  
Light Emission ◽  
White Light Emission

Coronal and Interplanetary Propagation of CME/Shocks from Radio, In Situ and White‐Light Observations

2007 ◽  
Vol 663 (2) ◽  
pp. 1369-1385 ◽  
Author(s):  
M. J. Reiner ◽  
M. L. Kaiser ◽  
J.‐L. Bougeret
Keyword(s):  
White Light ◽  
Interplanetary Propagation
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