Macroscopic and microscopic characterization of diesel spray under room temperature and low temperature with split injection

2016 ◽  
Vol 142 ◽  
pp. 71-85 ◽  
Author(s):  
Ziman Wang ◽  
Changzhao Jiang ◽  
Hongming Xu ◽  
Miroslaw L. Wyszynski
Keyword(s):  
Low Temperature ◽  
Room Temperature ◽  
Diesel Spray ◽  
Split Injection

Characterization of Fe-doped semi-insulating InP by low temperature and room temperature spatially resolved photoluminescence

1989 ◽  
Vol 96 (3) ◽  
pp. 469-482 ◽  
Author(s):  
M. Erman ◽  
G. Gillardin ◽  
J. Le Bris ◽  
M. Renaud ◽  
E. Tomzig
Keyword(s):  
Low Temperature ◽  
Room Temperature ◽  
Spatially Resolved

Nondestructive Compositional and Defect Characterization of CdZnTe Alloys Using Photoluminescence Spectroscopy

1989 ◽  
Vol 161 ◽  
Author(s):  
W.M. Duncan ◽  
R.J. Koestner ◽  
J.H. Tregilgas ◽  
H.-Y. Liu ◽  
M.-C. Chen
Keyword(s):  
High Resolution ◽  
Low Temperature ◽  
Point Defect ◽  
Impurity Concentration ◽  
Room Temperature ◽  
Precise Determination ◽  
Defect Characterization ◽  
Helium Temperature ◽  
Composition Determination

ABSTRACTResults from high resolution helium temperature photoluminescence (PL) spectroscopy have been correlated to precision lattice constant and transport measurements and to theoretical band gap versus composition behavior. It is found that low temperature PL spectra provide precise determination (+/- 0.02%) of ZnTe mole fraction as well as carrier type, relative impurity concentration and point defect properties of these substrates. In addition helium and room temperature PL results are correlated to determine the accuracy of room temperature measurements for composition determination.

The Microstructure Evolution and Twinning Characterization of AZ31 Mg Alloy Sheet in Low-Temperature Bending Process

2013 ◽  
Vol 690-693 ◽  
pp. 16-19
Author(s):  
Jun Wei Liu ◽  
Shi Qiang Lu ◽  
Ke Lu Wang ◽  
Gui Fa Li ◽  
Xuan Xiao
Keyword(s):  
Low Temperature ◽  
Microstructure Evolution ◽  
Room Temperature ◽  
Alloy Sheet ◽  
Mg Alloy ◽  
Az31 Mg Alloy ◽  
Bending Process ◽  
Hot Rolled ◽  
The Relationship

The relationship among stress, cavities and twinning in the room-temperature bending process of hot-rolled AZ31 Mg alloy sheet was researched. It can be seen that the mount of twins which was tightly affected by stress value increases with the distance to press point. Otherwise, the cavities and twinning which seem totally independent, in fact affect with each other. Some cavities were hindered by twins and can not further grow up. Then, the relationship between slip and twinning was also roughly discussed. The dislocation lines in twins can be thought to release the stress focus and were beneficial for deformation.

scholarly journals Room temperature synthesis and characterization of novel lead-free double perovskite nanocrystals with a stable and broadband emission

2021 ◽  
Vol 9 (1) ◽  
pp. 158-163
Author(s):  
Yingying Tang ◽  
Leyre Gomez ◽  
Marco van der Laan ◽  
Dolf Timmerman ◽  
Victor Sebastian ◽  
...  
Keyword(s):  
Activation Energy ◽  
Low Temperature ◽  
Room Temperature ◽  
Double Perovskite ◽  
Lead Free ◽  
Synthesis And Characterization ◽  
Temperature Synthesis ◽  
Perovskite Nanocrystals ◽  
Broadband Emission

We demonstrated the synthesis of ultra small and stable Cs3BiBr6 nanocrystals, ∼1.5–3 nm, via a room-temperature antisolvent method. Red-shift of bandgap was observed in low temperature PL measurements with an activation energy of ∼41 meV.

Characterization of interface quality between various low-temperature oxides and Si using room-temperature-photoluminescence and Raman spectroscopy

2013 ◽  
Vol 28 (9) ◽  
pp. 1269-1277 ◽  
Author(s):  
Shiu-Ko Jang Jian ◽  
Chih-Cherng Jeng ◽  
Ting-Chun Wang ◽  
Chih-Mu Huang ◽  
Ying-Lang Wang ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Low Temperature ◽  
Room Temperature ◽  
Interface Quality ◽  
Room Temperature Photoluminescence ◽  
Image Position

Abstract

Characterization of Novel Deep Eutectic Ionic Liquids and their Application in Green Synthesis

2010 ◽  
Vol 113-116 ◽  
pp. 1212-1216 ◽  
Author(s):  
Bao You Liu ◽  
Yuan Yuan Wang ◽  
Fu Xiang Wei
Keyword(s):  
Catalytic Activity ◽  
Ionic Liquids ◽  
Low Temperature ◽  
Quaternary Ammonium ◽  
Room Temperature ◽  
Quaternary Ammonium Salts ◽  
Ammonium Salts ◽  
Sonogashira Reaction ◽  
Good Catalytic Activity

Five novel deep eutectic ionic liquids were prepared from relatively simple quaternary ammonium salts and imidazole. All of these salts are liquids at room temperature, and are steady up to 150°C. They exhibit low viscosities and moderate conductivities at low temperature. Especially, Bu4NCl-IM is a green alternative solvent in Sonogashira reaction with good catalytic activity.

scholarly journals Near-nozzle microscopic characterization of diesel spray under cold start conditions with split injection strategy

Fuel ◽  
2016 ◽  
Vol 181 ◽  
pp. 366-375 ◽  
Author(s):  
Ziman Wang ◽  
Yanfei Li ◽  
Chongming Wang ◽  
Hongming Xu ◽  
Miroslaw L. Wyszynski
Keyword(s):  
Cold Start ◽  
Diesel Spray ◽  
Split Injection ◽  
Injection Strategy

Synthesis and characterization of nanometric gadolinia powders by room temperature solid-state displacement reaction and low temperature calcination

2017 ◽  
Vol 37 (8) ◽  
pp. 2843-2848 ◽  
Author(s):  
Branko Matovic ◽  
Jelena Maletaskic ◽  
Marija Prekajski Djordjevic ◽  
Vesna Maksimovic ◽  
Jelena Zagorac ◽  
...  
Keyword(s):  
Solid State ◽  
Low Temperature ◽  
Room Temperature ◽  
Synthesis And Characterization ◽  
Displacement Reaction

Characterization of intergranular cuprous oxide in polycrystalline YBa2Cu3O7-x

1988 ◽  
Vol 46 ◽  
pp. 880-881
Author(s):  
Bradley L. Thiel ◽  
Chan Han R. P. ◽  
Kurosky L. C. Hutter ◽  
I. A. Aksay ◽  
Mehmet Sarikaya
Keyword(s):  
Grain Boundary ◽  
Cuprous Oxide ◽  
Room Temperature ◽  
Boundary Phase ◽  
Spectroscopic Techniques ◽  
Transition Width ◽  
Practical Applications ◽  
Thin Foils ◽  
Superconducting Oxides

The identification of extraneous phases is important in understanding of high Tc superconducting oxides. The spectroscopic techniques commonly used in determining the origin of superconductivity (such as RAMAN, XPS, AES, and EXAFS) are surface-sensitive. Hence a grain boundary phase several nanometers thick could produce irrelevant spectroscopic results and cause erroneous conclusions. The intergranular phases present a major technological consideration for practical applications. In this communication we report the identification of a Cu2O grain boundary phase which forms during the sintering of YBa2Cu3O7-x (1:2:3 compound).Samples are prepared using a mixture of Y2O3. CuO, and BaO2 powders dispersed in ethanol for complete mixing. The pellets pressed at 20,000 psi are heated to 950°C at a rate of 5°C per min, held for 1 hr, and cooled at 1°C per min to room temperature. The samples show a Tc of 91K with a transition width of 2K. In order to prevent damage, a low temperature stage is used in milling to prepare thin foils which are then observed, using a liquid nitrogen holder, in a Philips 430T at 300 kV.

Characterization of Low Temperature SiNx Films for 3D/2.5D-IC TSV

2015 ◽  
Vol 135 (7) ◽  
pp. 733-738 ◽  
Author(s):  
Yasushi Kobayashi ◽  
Yoshihiro Nakata ◽  
Tomoji Nakamura ◽  
Mayumi B. Takeyama ◽  
Masaru Sato ◽  
...  
Keyword(s):  
Low Temperature
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