A Discussion on the measurement and interpretation of changes of strain in the Earth - Strain measurement in Australia with particular reference to the Cooney Observatory

1973 ◽  
Vol 274 (1239) ◽  
pp. 323-330 ◽  
Keyword(s):  
New England ◽  
Research Programme ◽  
Instrument Error ◽  
Crustal Movements ◽  
Long Term Stability ◽  
The Earth ◽  
Temperature And Pressure ◽  
Strain Determination ◽  
The University

A number of groups in Australia are concerned with Earth crustal movement measurement and interpretation. A brief description is given of their activities. Monitoring crustal movements requires methods of strain determination which have the best attainable precision and long-term stability. Paramount to improvement of the established techniques is need for a facility where the various methods can be compared in a reliable manner. The remainder of the paper describes the research programme of the Cooney Observatory (operated by the University of New England) which has a dominant theme of instrument development and verification. Rod, wire and laser strain-meters and the necessary peripheral equipment are described. Of interest is the continuing improvement of stable intermediate-length measuring bases in which a controlled temperature and pressure environment is created to eliminate the main systematic sources of instrument error during testing and calibration.

scholarly journals Strategic management controlling system and its importance for SMEs in the EU

2020 ◽  
Vol 18 (3) ◽  
pp. 362-372
Author(s):  
Miroslav Pavlák ◽  
Přemysl Písař
Keyword(s):  
Strategic Management ◽  
Financial Analysis ◽  
Business Environment ◽  
The European Union ◽  
Term Stability ◽  
Long Term Stability ◽  
Controlling System ◽  
Depth Analysis ◽  
The University

The current hyper-competitive environment offers many great opportunities for small and medium-sized businesses (SMEs), but on the other hand, this business environment is also hazardous. SMEs are a significant economic power and employer in the European Union. Their competitiveness and long-term stability are a crucial factor for European cohesion and economic growth. The research aim is to design a strategic management controlling system that should be implemented to SMEs and be useful for their long-term future development. The study was conducted in 2017–2020 based on data from 403 SMEs. The PAPI method was used to collect data. The implications between defined variables controlling, ROA, turnover, financial analysis, and strategic management were explained, and the results obtained from an in-depth analysis were indicated. The research was concluded by a model of strategic management controlling system tested by experimental in-practice implementation on SMEs and verified. The model and the research findings are suitable for business practice and should support the long-term stability and development of SMEs. AcknowledgmentThe paper has been prepared within the project “Risk Management in Industry 4.0” (7427/2019/02 IGA VŠFS) using the objective oriented support for specific university research of the University of Finance and Administration.

Progress of COSMOS (CO2 Sending Method for Ocean Storage) and OACE (Ocean Abyssal Carbon Experiment)

2003 ◽  
Author(s):  
Izuo Aya ◽  
Sadahiro Namie ◽  
Kenji Yamane ◽  
Ryuji Kojima ◽  
Yasuharu Nakajima ◽  
...  
Keyword(s):  
Ocean Floor ◽  
Monterey Bay ◽  
Storage Site ◽  
Joint Research ◽  
Ambient Seawater ◽  
Long Term Stability ◽  
Liquid Co2 ◽  
The University ◽  
Research Institute

The storage of liquid CO2 at an ocean floor, one of promising measures to mitigate the global warming, requires 3500 m depth for the gravitationally stable storage, a breakthrough technology and a reasonable cost to realize, although it has large advantages such as the sequestration term longer than 2000 years. However CO2 can be sent to the ocean floor by shallow release, if we can use the nature that the cold CO2 to be shipped by a CO2 carrier is much denser than the ambient seawater even at shallow depths. The National Maritime Research Institute (NMRI) conducted several joint field CO2 release experiments with the Monterey Bay Aquarium Research Institute (MBARI, USA) since 1999 under the auspices of the NEDO, and proposed the improved COSMOS, CO2 Sending Method for Ocean Storage, in which CO2 is released into 200 m depth as slurry masses (mixture of dry ice and cold liquid CO2). Since 2002, under the NEDO Grant, the NMRI started a new international joint research, OACE, Ocean Abyssal Carbon Experiment with the MBARI and the University of Bergen (UoB, Norway), in order to accumulate the basic data on the long-term stability of stored CO2 and its environmental effects around storage site.

The Egyptian Mummy “Hori”: a conservation assessment of Brazil’s Museu Nacional’s Egyptian Mummy “Hori” for Exhibition

1970 ◽  
Vol 80 (1) ◽  
Author(s):  
Debra K. Meier ◽  
Karl Jan Reinhard ◽  
Sheila Mendonça de Souza
Keyword(s):  
Conservation Assessment ◽  
Egyptian Mummy ◽  
Term Stability ◽  
Long Term Stability ◽  
State Museum ◽  
The Usa ◽  
The University ◽  
Types Of Change

Mummies are often excavated from dry tombs in xeric countries and transported to humid exhibits in mesic countries. When this happens, specific changes are likely to occur that threaten the long–term stability on mummies. We review our experiences in the University of Nebraska State Museum in the USA and the Museu Nacional in Brazil with regard to Andean mummies. We have observed several types of change that damages mummies. In some cases moisture is absorbed by the mummy and weakens brittle tissues. In other cases, moisture exudes from the mummies. In a few cases, decomposition occurs and necessitates intervention. The threats of humid museums are summarized and recommendations made for preserving mummies.

Green ammonia synthesis using CeO2/RuO2 nanolayers on vertical graphene catalyst via electrochemical route in alkaline electrolyte

Nanoscale ◽  
2022 ◽  
Author(s):  
Hyungkuk Ju ◽  
Dong Han Seo ◽  
Sunki Chung ◽  
Xin Mao ◽  
Byeong Seon An ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Production Process ◽  
Electrochemical Synthesis ◽  
Ammonia Synthesis ◽  
Alkaline Electrolyte ◽  
Ammonia Production ◽  
Long Term Stability ◽  
Electrochemical Synthesis Of Ammonia ◽  
Temperature And Pressure

The electrochemical synthesis of ammonia at ambient temperature and pressure has a potential to replace conventional ammonia production process. However, low ammonia yield and poor long-term stability of the catalyst...

scholarly journals Molecular Dynamics Investigation of Graphene Nanoplate Diffusion Behavior in Poly-α-Olefin Lubricating Oil

Crystals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 361 ◽  
Author(s):  
Lupeng Wu ◽  
Baoyu Song ◽  
Leon Keer ◽  
Le Gu
Keyword(s):  
Molecular Dynamics ◽  
Diffusion Coefficient ◽  
Functional Groups ◽  
Lubricating Oil ◽  
Diffusion Behavior ◽  
Long Term Stability ◽  
Temperature And Pressure ◽  
First Time ◽  
Graphene Nanoplates

Graphene as a type of novel additive significantly enhanced the tribological performance of blended lubricating oil. However, the dispersibility of graphene with long-term stability in lubricating oil is still a challenge. Chemical modification for graphene, rather than using surfactants, provided a better method to improve the dispersibility of graphene in lubricants. In this study, the equilibrium molecular dynamics (EMD) simulations were carried out to investigate the diffusion behavior of graphene nanoplates in poly-α-olefin (PAO) lubricating oil. The effects of graphene-size, edge-functionalization, temperature, and pressure on the diffusion coefficient were studied. In order to understand the influence of edge-functionalization, three different functional groups were grafted to the edge of graphene nanoplates: COOH, COON(CH3)2, CONH(CH2)8CH3 (termed GO, MG, and AG, respectively). The EMD simulations results demonstrated that the relationships between diffusion coefficient and graphene-size and number of functional groups were linear while the temperature and pressure had a nonlinear influence on the diffusion coefficient. It was found that the larger dimension and more functional groups provided the lower diffusion coefficient. AG with eight CONH(CH2)8CH3 groups exhibited the lowest diffusion coefficient. Furthermore, the experimental results and radial distribution function for graphene-PAO illustrated that the diffusion coefficient reflected the dispersibility of nanoparticles in nanofluids to some degree. To our best knowledge, this study is the first time the diffusion behavior of graphene in PAO lubricating oil was investigated using EMD simulations.

scholarly journals Development of Electric and Chemical Microthrusters

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
M. Tajmar ◽  
C. A. Scharlemann
Keyword(s):  
Applied Sciences ◽  
Electric Propulsion ◽  
Metal Ion ◽  
High Performance ◽  
Specific Impulse ◽  
Long Term Stability ◽  
University Of Applied Sciences ◽  
Green Propellants ◽  
The University

The increasing application of microsatellites (from 10 kg up to 100 kg) as well as CubeSats for a rising number of various missions demands the development of miniaturized propulsion systems. Fotec and The University of Applied Sciences at Wiener Neustadt is developing a number of micropropulsion technologies including both electric and chemical thrusters targeting high performance at small scales. Our electric propulsion developments include a series of FEEP (field emission electric propulsion) thrusters, of which the thrust ranges fromμN to mN level. The thrusters are highly integrated into clusters of indium liquid-metal-ion sources that can provide ultralow thrust noise and long-term stability. We are also developing a micro PPT thruster that enables pointing capabilities for CubeSats. For chemical thrusters, we are developing novel micromonopropellant thrusters with several hundred mN as well as a 1–3 N bipropellant microrocket engine using green propellants and high specific impulse performance. This paper will give an overview of our micropropulsion developments at Fotec, highlighting performance as well as possible applications.

The South Netherlands project

1996 ◽  
Vol 3 (2) ◽  
pp. 231-245 ◽  
Author(s):  
Nico Roymans
Keyword(s):  
Research Programme ◽  
Research Strategy ◽  
Major Research ◽  
The South ◽  
Instituut Voor ◽  
Adjacent Part ◽  
Southern Netherlands ◽  
The University ◽  
Eastern Half

This article discusses the development of the research strategy of the South Netherlands project conducted by the Instituut voor Pre- en Protohistorische Archeologie (IPP) of the University of Amsterdam. Its general objective is the study of long-term transformations in landscape and culture between ca 1000 B.C. and 1200 A.D. in the flat sandy region of the southern Netherlands and the adjacent part of northern Belgium. This area of ca 100 by 140 km is roughly bordered by the rivers Meuse, Demer and Scheldt (= MDS-region; see figure 1). The project has a history which started in the early 1970s. It evolved out of the ‘Kempenproject’ of the IPP and the Archeologisch Instituut van de Vrije Universiteit (AIVU) at Amsterdam. At present it is a major research programme of the IPP, with each year several large excavations dispersed over the region, but with a concentration in the south-eastern half of the province of North-Brabant (figure 1).

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