scholarly journals Pyrene-based aggregation-induced emission luminogens (AIEgen): structure correlated with particle size distribution and mechanochromism

2019 ◽  
Vol 7 (23) ◽  
pp. 6932-6940 ◽  
Author(s):  
Xing Feng ◽  
Jun Zhang ◽  
Zhen Hu ◽  
Qingsong Wang ◽  
Md. Monarul Islam ◽  
...  
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Significant Role ◽  
Emission Intensity ◽  
Morphological Changes ◽  
Nano Particle ◽  
Aggregation Induced Emission ◽  
Water Fraction ◽  
Particle Species

The morphology of pyrene-based AIEgens changes depending on the water fraction. The different size distribution and morphological changes of nano-particle species play a significant role in enhancing the emission intensity in the aggregated state.

Chemical characterization, nano-particle mineralogy and particle size distribution of basalt dust wastes

2016 ◽  
Vol 539 ◽  
pp. 560-565 ◽  
Author(s):  
Adilson C. Dalmora ◽  
Claudete G. Ramos ◽  
Marcos L.S. Oliveira ◽  
Elba C. Teixeira ◽  
Rubens M. Kautzmann ◽  
...  
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Chemical Characterization ◽  
Nano Particle

Hot Isostatic Consolidation of P/M Superalloys

1983 ◽  
Vol 28 ◽  
Author(s):  
R.D. Kissinger ◽  
S.V. Nair ◽  
J.K. Tien
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Morphological Changes ◽  
Hold Time ◽  
Hot Isostatic Pressing ◽  
Nickel Base Superalloy ◽  
Size Distributions ◽  
Particle Deformation ◽  
Kinetics Of

ABSTRACTThe kinetics of powder consolidation, or densification, and the powder morphological changes ocurring during hot isostatic pressing (HIP) are studied as a function of particle size distribution and hold time at HIP temperature for the nickel base superalloy RENE-95. In order to understand the extent of individual powder particle deformation during consolidation and its effect on subsequent prior particle boundaries (PPB), particle size distribution was studied as a variable. Particle size distributions studied include monosized (75–90 um), bimodal ( 75–90 um and 33–35 um) and commercial (<104 um) size distributions. The experimental results of HIP densification kinetics are compared with a newly developed analytical deformation mechanism model for HIP consolidaiton which takes into account the effect of a distribution of particle sizes on the kinetics of densification.

scholarly journals Development of a new Nano-particle sizer equipped with a 12 channel multi-port differential mobility analyzer and multi-condensation particle counters

2019 ◽  
Author(s):  
Hong Ku Lee ◽  
Handol Lee ◽  
Kang-Ho Ahn
Keyword(s):  
Particle Size ◽  
Steady State ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Particle Concentration ◽  
Size Distributions ◽  
Nano Particle ◽  
Differential Mobility Analyzer ◽  
Differential Mobility ◽  
Particle Sizer

Abstract. Measuring particle size distributions precisely is an important concern in addressing environmental and human health-related issues. To measure particle size distribution, a scanning mobility particle sizer (SMPS) is often used. However, it is difficult to analyze particle size distribution under fast-changing concentration conditions because the SMPS cannot respond fast enough to reflect current conditions due to the time necessary for voltage scanning. In this research, we developed a new Nano-particle sizer (NPS), which consists of a multi-port differential mobility analyzer (MP-DMA) with 12 sampling ports and multi-condensation particle counters (M-CPCs) that simultaneously measure concentrations of particles classified by the sampling ports. The M-CPC can completely condense particles larger than 10 nm, and the total particle concentrations measured by each homemade CPC in the M-CPCs and an electrometer were in agreement up to 20,000 # cm−3. For particle classification tests on the MP-DMA, geometric standard deviations of the size distributions of classified particles were estimated in the range of 1.035–1.066. We conducted size distribution measurements under steady-state conditions using an aerosol generator and under unsteady conditions by switching the aerosol supply on/off. The data obtained by the NPS corresponded closely with the SMPS measurement data for the steady-state particle concentration case. In addition, the NPS could successfully capture the changes in particle size distribution under fast-changing particle concentration conditions. For the last, we presented the NPS measurement results of size distributions in common situation (cooking) as an exemplary real-world application.

scholarly journals Application of the PAMONO-Sensor for Quantification of Microvesicles and Determination of Nano-Particle Size Distribution

Sensors ◽  
2017 ◽  
Vol 17 (2) ◽  
pp. 244 ◽  
Author(s):  
Victoria Shpacovitch ◽  
Irina Sidorenko ◽  
Jan Lenssen ◽  
Vladimir Temchura ◽  
Frank Weichert ◽  
...  
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Nano Particle

scholarly journals Direct Visualisation, Sizing and Counting of Virus and Phage Particles in Liquids

2009 ◽  
Vol 17 (1) ◽  
pp. 34-37
Author(s):  
Bob Carr ◽  
Duncan Griffiths
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Low Cost ◽  
Correlation Spectroscopy ◽  
Particle Analysis ◽  
Distribution Data ◽  
Attractive Alternative ◽  
Nano Particle ◽  
Analysis System

A laser-based, single nano-particle tracking analysis system was described in the March issue of Microscopy Today. The LM series of analyzers from NanoSight allows nanoscale particles such as viruses to be directly and individually visualised in liquids in real time, from which high-resolution particle size distribution profiles can be obtained, figure 1. The technique is fast, robust, accurate, and low cost representing an attractive alternative or complement to expensive and more complex methods of nano-particle analysis such as dynamic light scattering (photon correlation spectroscopy) or electron microscopy.By simultaneously and directly measuring the diffusion coefficient of each and every particle, the dedicated Nanoparticle Tracking Analysis (NTA) software suite allows the user to automatically count and size the viruses in a sample. Results are displayed as graphs of size against count of individual particles (or size versus relative brightness), thus overcoming the limitations inherent in other particle analysis systems that generate only mean particle size distribution data with resolution.

Sign in / Sign up

Export Citation Format

Share Document