On Mixed Group 14-Group 14 Bonds. 8. Asymmetrically Substituted Compounds Ar3PbGeAr'3 and Ar3PbPbAr'3: Comparison of Structure and Physical Behavior in the Series of Bonds Sn-Sn, Pb-Ge, Pb-Sn, and Pb-Pb

1994 ◽  
Vol 13 (7) ◽  
pp. 2733-2742 ◽  
Author(s):  
Hans-Juergen Koglin ◽  
Kerstin Behrends ◽  
Martin Draeger
Keyword(s):  
Mixed Group ◽  
Group 14 ◽  
Physical Behavior

scholarly journals Frontispiece: Mixed Group 14–15 Metalates as Model Compounds for Doped Lead Halide Perovskites

2021 ◽  
Vol 60 (8) ◽  
Author(s):  
Natalie Dehnhardt ◽  
Jan‐Niclas Luy ◽  
Philip Klement ◽  
Luca Schipplick ◽  
Sangam Chatterjee ◽  
...  
Keyword(s):  
Mixed Group ◽  
Group 14 ◽  
Model Compounds ◽  
Halide Perovskites ◽  
Lead Halide

scholarly journals Mixed Group 14‐15 Metalates As Model Compounds For Doped Lead Halide Perovskites

2020 ◽  
Author(s):  
Natalie Dehnhardt ◽  
Jan-Niclas Luy ◽  
Philip Klement ◽  
Luca Schipplick ◽  
Sangam Chatterjee ◽  
...  
Keyword(s):  
Mixed Group ◽  
Group 14 ◽  
Model Compounds ◽  
Halide Perovskites ◽  
Lead Halide

Synthesis, Structure, and Chemistry of New, Mixed Group 14 and 16 Heterocycles:  Nucleophile-Induced Ring Contraction of Mesocyclic Dications

2006 ◽  
Vol 128 (46) ◽  
pp. 14949-14961 ◽  
Author(s):  
Eric Block ◽  
Evgeny V. Dikarev ◽  
Richard S. Glass ◽  
Jin ◽  
Bo Li ◽  
...  
Keyword(s):  
Mixed Group ◽  
Group 14 ◽  
Ring Contraction

1-Arsa-3-germaallene Tip(t-Bu)Ge═C═AsMes*: The Heaviest Mixed Group 14 and 15 Heteroallenic Compound

2011 ◽  
Vol 133 (8) ◽  
pp. 2366-2369 ◽  
Author(s):  
Dumitru Ghereg ◽  
Nathalie Saffon ◽  
Jean Escudié ◽  
Karinne Miqueu ◽  
Jean-Marc Sotiropoulos
Keyword(s):  
Mixed Group ◽  
Group 14

scholarly journals Mixed Group 14‐15 Metalates As Model Compounds For Doped Lead Halide Perovskites

2020 ◽  
Author(s):  
Natalie Dehnhardt ◽  
Jan-Niclas Luy ◽  
Philip Klement ◽  
Luca Schipplick ◽  
Sangam Chatterjee ◽  
...  
Keyword(s):  
Mixed Group ◽  
Group 14 ◽  
Model Compounds ◽  
Halide Perovskites ◽  
Lead Halide

A Tem Study of Slip Systems in MoSi2/WSi2 Alloys

1991 ◽  
Vol 49 ◽  
pp. 942-943
Author(s):  
Stuart A. Maloy
Keyword(s):  
Solid Solution ◽  
Solid Solution Hardening ◽  
Slip Systems ◽  
High Melting ◽  
Group 14 ◽  
Solution Hardening ◽  
Brittle To Ductile Transition ◽  
High Melting Temperature ◽  
Tetragonal Unit Cell ◽  
Structural Applications

MoSi2 has recently been investigated as a potential material for high temperature structural applications. It has excellent oxidation resistance up to 1700°C, a high melting temperature, 2030°C, and a brittle-to-ductile transition temperature at 900-1000°C. WSi2 is isomorphous with MoSi2 and has a body-centered tetragonal unit cell of the space group 14/mmm. The lattice parameters are a=3.20 Å and c=7.84 Å for MoSi2 and a=3.21 Å and c=7.88 Å for WSi2. Therefore, WSi2 was added to MoSi2 to improve its strength via solid solution hardening. The purpose of this study was to investigate the slip systems in polycrystalline MoSi2/WSi2 alloys.

Hearing Outcome of Stapes Surgery in NIENT, Bangladesh

2020 ◽  
Vol 26 (1) ◽  
pp. 31-36
Author(s):  
Md Zakaria Sarkar ◽  
AHM Ferdows Nur ◽  
Utpal Kumar Dutta ◽  
Muhammad Rafiqul Islam ◽  
Debabrota Roy ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Cross Sectional Study ◽  
Surgical Trauma ◽  
Group 14 ◽  
Progressive Hearing Loss ◽  
Cross Sectional ◽  
Hearing Gain ◽  
Hearing Outcome

Objective: The aim of this study was to evaluate hearing outcome after stapedotomy in patients with Otosclerosis. Methods: This cross sectional study was carried out from July 2017 to January 2019 in National Institute of ENT, Unit V. About 22 patients with Otosclerosis were included in this study. Diagnosis of Otosclerosis was based on the history, medical status with Otoscopy, Tuning fork tests and Audiometric tests. We compiled data on the pre and post operative air-bone gap (ABG) at 0.5, 1, 2 KHZ. The ABG was Calculated using AC and BC thresholds on the same audiogram. Post operative hearing gain was then Calculated from the ABG before the operation minus the ABG of the last follow up examination Results: In this study most of the cases were age group 14-30 years (72.7%), female (54.5%). Most common symptoms was progressive hearing loss, tinnitus (77.8%).The average preoperative hearing loss in this study was (AC) was 48.31±7.68. The average post opt. hearing (AC) at follow up was 28.95±10.30 with an average hearing gain of 15.40±8.53 dB which was significant. The average pre-operative ABG was 28.99 dB ± 8.10. The average post opt. ABG was analyzed at 1 follow up showed ABG 13.18±8.09 dB which was found to be significant. Conclusion: Stapedotomy is an effective surgical procedure for the treatment of otosclerosis which leads to improvement in patient’s quality of life. A favorable hearing outcome can be obtained by the combination of experienced hands with minimal surgical trauma and appropriate surgical technique. Bangladesh J Otorhinolaryngol; April 2020; 26(1): 31-36

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