In situ observation of surface processes in InAs/GaAs(001) heteroepitaxy: The role of As on the growth mode

2001 ◽  
Vol 78 (4) ◽  
pp. 431-433 ◽  
Author(s):  
Akihiro Ohtake ◽  
Masashi Ozeki
Keyword(s):  
Growth Mode ◽  
Surface Processes ◽  
In Situ Observation

“In situ” observation of the role of chloride ion binding to monkey green sensitive visual pigment by ATR-FTIR spectroscopy

2018 ◽  
Vol 20 (5) ◽  
pp. 3381-3387 ◽  
Author(s):  
Kota Katayama ◽  
Yuji Furutani ◽  
Masayo Iwaki ◽  
Tetsuya Fukuda ◽  
Hiroo Imai ◽  
...  
Keyword(s):  
Spectroscopic Study ◽  
Ftir Spectroscopy ◽  
Visual Pigment ◽  
Chloride Ion ◽  
Ion Binding ◽  
In Situ Observation ◽  
The Novel ◽  
Long Wavelength

ATR-FTIR spectroscopic study elucidates the novel role of Cl−-binding in primate long-wavelength-sensitive (LWS) visual pigment.

Understanding the Role of SnO 2 Support in Water‐Tolerant Methane Combustion: In situ Observation of Pd(OH) 2 and Comparison with Pd/Al 2 O 3

ChemCatChem ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 944-952 ◽  
Author(s):  
William Barrett ◽  
Jing Shen ◽  
Yongfeng Hu ◽  
Robert E. Hayes ◽  
Robert W. J. Scott ◽  
...  
Keyword(s):  
Methane Combustion ◽  
In Situ Observation

Defect clusters of molybdenum alloys bombarded by HVEM

1978 ◽  
Vol 36 (1) ◽  
pp. 402-403
Author(s):  
N. Igata ◽  
A. Kohyama ◽  
H. Murakami ◽  
K. Itadani ◽  
H. Tsunakawa
Keyword(s):  
Incident Beam ◽  
In Situ Observation ◽  
Dislocation Loops ◽  
Defect Clusters ◽  
Voltage Electron ◽  
Molybdenum Alloys ◽  
Damage Process ◽  
Hot Rolled

As a simulation study of heavy radiation damage by neutrons, in-situ observation of damage process in molybdenum alloys was performed by a high voltage electron microscope. The objectives of this study are to clarify the processes of defect cluster nucleation and growth, and the role of alloying elements on these in the temperature range from 300K to 1300K.The used molybdenum alloys were Mo-(150-1000)at.ppm.C, Mo-(0.06-0.6)at.%Nb, MO-0.29at.%Hf, MO-(0.026-26)at.%Re and Mo-0.56at.%Ni. The used materials were electron-beam melted and hot rolled at 200-400°C and annealing was performed in the vacuum of l×l0-7torr. at 1800°C for 1.0 hr. The standard irradiation conditions were as follows,Accelerating voltage: 1250KV, Beam intensity: l-6×l019 e/cm2 sec, Incident beam direction: <100>, g-vector: {110},The density of defect clusters was determined by the thickness gradient method.The logarithmic density of interstitial dislocation loops, logNi, increased with the reciprocal irradiation temperature, 1/T. The relation between logNiand 1/T was divided into two Arrhenius type relations above and below 500K.

scholarly journals ECO-PESANTREN ASSESSMENT STUDY OF ISLAMIC BOARDING SCHOOL IN BANDA ACEH, INDONESIA

2021 ◽  
Vol 6 (3) ◽  
pp. 143-150
Author(s):  
Maysarah Bakri
Keyword(s):  
Renewable Resources ◽  
Boarding School ◽  
Environmental Conservation ◽  
In Situ Observation ◽  
Building Performance ◽  
Global Issue ◽  
Positive Effect ◽  
Banda Aceh

The implementation of Eco-Pesantren is a contribution of the Islamic Architecture product towards the current global issue. Eco-Pesantren aims to produce a green Islamic boarding school, which contributes a positive effect in terms of environmental conservation and energy saving. Therefore, this research assesses the Eco-Pesantren implementation of Darul Ulum Islamic Boarding School in Banda Aceh. The research method is descriptive qualitative. The researcher collects data through in-situ observation based on the research tool. The result shows that this Islamic Boarding School is not yet categorized as an Eco-Pesantren. to implement this concept. The management should improve some aspects such as optimizing natural renewable resources, optimizing the existing green space, and optimizing waste management. This study also reveals the role of architects in implementing the Eco-building concept and determines the building performance.

In Situ Observation of Catalyzed Gasification of Graphite by Nickel

1981 ◽  
Vol 39 ◽  
pp. 76-77
Author(s):  
R. T. K. Baker ◽  
R. D. Sherwood
Keyword(s):  
Objective Lens ◽  
In Situ Observation ◽  
Gas Flows ◽  
Catalytic Gasification ◽  
Television Camera ◽  
Viewing Screen ◽  
Fuels And Chemicals ◽  
Gasification Of Carbon ◽  
Transmission Microscope

The catalytic gasification of carbon at high temperature by microscopic size metal particles is of fundamental importance to removal of coke deposits and conversion of refractory hydrocarbons into fuels and chemicals. The reaction of metal/carbon/gas systems can be observed by controlled atmosphere electron microscopy (CAEM) in an 100 KV conventional transmission microscope. In the JEOL gas reaction stage model AGl (Fig. 1) the specimen is positioned over a hole, 200μm diameter, in a platinum heater strip, and is interposed between two apertures, 75μm diameter. The control gas flows across the specimen and exits through these apertures into the specimen chamber. The gas is further confined by two apertures, one in the condenser and one in the objective lens pole pieces, and removed by an auxiliary vacuum pump. The reaction zone is <1 mm thick and is maintained at gas pressure up to 400 Torr and temperature up to 1300<C as measured by a Pt-Pt/Rh 13% thermocouple. Reaction events are observed and recorded on videotape by using a Philips phosphor-television camera located below a hole in the center of the viewing screen. The overall resolution is greater than 2.5 nm.

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