Development of In Situ SAXS Detection System for the Pre-Oxidation and Carbonization of PAN Precursor

2012 ◽  
Vol 217-219 ◽  
pp. 2618-2622
Author(s):  
Kuan Yu ◽  
Bo Zhu
Keyword(s):  
Synchrotron Radiation ◽  
Detection System ◽  
Structural Evolution ◽  
Beam Line ◽  
Servo Control ◽  
Tension Control ◽  
Shanghai Synchrotron Radiation Facility ◽  
In Situ Detection ◽  
Pan Fibers

We designed an in-situ detection system suitable for Shanghai Synchrotron Radiation Facility. The system integrates remote control, temperature control, high-precision servo control and tension control technology, and can dynamically track the microstructure evolution of PAN precursor in the pre-oxidation and carbonization process using SAXS technology. The system has been put into use at the beam line BL16B1 at Shanghai Synchrotron Radiation Facility to investigate the structural evolution of PAN fibers with different drafting tension, temperature and atmosphere.

scholarly journals Real Time In-situ Detection System Research for Methane in Offshore Shallow Gas based on Thin Film Interface

2018 ◽  
Vol 232 ◽  
pp. 04053
Author(s):  
Cheng-xing Miao ◽  
Qing Li ◽  
Sheng-yao Jia
Keyword(s):  
Real Time ◽  
Detection Efficiency ◽  
Detection System ◽  
Detection Methods ◽  
Shallow Gas ◽  
Micro Gas Sensor ◽  
Detection Probe ◽  
On Line ◽  
In Situ Detection

In order to get ridded of the non real-time detection methods of artificial site sampled and laboratory instrument analyzed in the field of methane detection in the offshore shallow gas, real-time in-situ detection system for methane in offshore shallow gas was designed by the film interface.The methane in the offshore shallow gas through the gas-liquid separation membrane of polymer permeation into the system internal detection probe, analog infrared micro gas sensor sensed the methane concentration and the corresponded output value, data acquisition and communication node fitted into standard gas concentration.Based on the experimental data compared with the traditional detection method, and further analyzed the causes of error produced by the case experiment. The application results show that the system can achieve a single borehole layout, long-term on-line in-situ on-line detection, and improve the detection efficiency and the timeliness of the detection data.

Stretch-induced structural evolution of pre-oriented isotactic polypropylene films: An in-situ synchrotron radiation SAXS/WAXS study

Polymer ◽  
2020 ◽  
pp. 123234
Author(s):  
Jean Claude Habumugisha ◽  
Shengyao Feng ◽  
Obaid Iqbal ◽  
Yuanfei Lin ◽  
Minfang An ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Isotactic Polypropylene ◽  
Structural Evolution ◽  
Polypropylene Films

Multiple Phage-Based Magnetoelastic Biosensors System for the Detection of Salmonella typhimurium and Bacillus anthracis Spores

2008 ◽  
Vol 1129 ◽  
Author(s):  
S. Huang ◽  
S. Li ◽  
H. Yang ◽  
M. L. Johnson ◽  
Ramji S Lakshmanan ◽  
...  
Keyword(s):  
Resonance Frequency ◽  
Rapid Detection ◽  
Detection System ◽  
Additional Mass ◽  
Response Curves ◽  
Biosensor System ◽  
Bacillus Anthracis Spores ◽  
In Situ Detection ◽  
Multiple Pathogens

AbstractThis paper presents a multiple magnetoelastic (ME) biosensor system for in-situ detection of S. typhimurium and B. anthracis spores in a flowing bacterial/spore suspension (5 x 101 - 5 x 108 cfu/ml). The ME biosensor was formed by immobilizing filamentous phage (specific to each detection target) on the ME platforms. An alternating magnetic field was used to resonate the ME biosensor to determine its resonance frequency. When cells/spores are bound to a ME biosensor surface, the additional mass of the cells/spores causes a decrease in the resonance frequency of the biosensor. The detection system was composed of a control sensor, an E2 phage-based biosensor (specific to S. typhimurium) and a JRB7 phage-based biosensor (specific to B. anthracis spores). The frequency response curves of the ME biosensors as a function of exposure time were then measured and the detection limit of the ME biosensor was observed to be 5 x 103 cfu/ml. The results show that phage-based ME biosensors can detect multiple pathogens simultaneously and offer good performance, including good sensitivity and rapid detection.

In Situ High Temperature Texture Characterisation in NiTi Shape Memory Alloy Using Synchrotron Radiation

2005 ◽  
Vol 495-497 ◽  
pp. 125-130 ◽  
Author(s):  
Andersan S. Paula ◽  
Karimbi Koosappa Mahesh ◽  
Francisco Manuel Braz Fernandes ◽  
Rui Miguel S. Martins ◽  
A.M.A. Cardoso ◽  
...  
Keyword(s):  
High Temperature ◽  
Synchrotron Radiation ◽  
Shape Memory Alloy ◽  
Present Experiment ◽  
Structural Evolution ◽  
Nickel Titanium ◽  
Niti Shape Memory Alloy ◽  
Pole Figures ◽  
In Situ Conditions

The aim of the present experiment was to analyse the structural evolution during annealing of Nickel-Titanium (Ni-Ti) SMA subjected to different thermomechanical treatments. As structural evolutions are accompanied by the changes in preferential orientations, pole figures were employed to study the in-situ conditions.

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