Infrared simultaneous gas detector for an atmospheric environmental network

1998 ◽  
Author(s):  
Juan A. Chavez ◽  
Juan A. Ortega Redondo ◽  
Antoni Turo ◽  
Jordi Salazar ◽  
Miguel J. Garcia
2003 ◽  
Vol 21 (4) ◽  
pp. 74-92 ◽  
Author(s):  
Belinda Cooper

Without help from the west, the small East German opposition,such as it was, never would have achieved as much as it did. Themoney, moral support, media attention, and protection provided bywestern supporters may have made as much of a difference to theopposition as West German financial support made to the East Germanstate. Yet this help was often resented and rarely acknowledgedby eastern activists. Between 1988 and 1990, I worked withArche, an environmental network created in 1988 by East Germandissidents. During that time, the assistance provided by West Germans,émigré East Germans, and foreigners met with a level of distrustthat cannot entirely be blamed on secret police intrigue.Outsiders who tried to help faced a barrage of allegations and criticismof their work and motives. Dissidents who elected to remain inEast Germany distrusted those who emigrated, and vice versa,reflecting an unfortunate tendency, even among dissidents, to internalizeelements of East German propaganda. Yet neither the helpand support the East German opposition received from outside northe mentalities that stood in its way have been much discussed. Thisessay offers a description and analysis of the relationship betweenthe opposition and its outside supporters, based largely on one person’sfirst-hand experience.


2021 ◽  
Vol 11 (9) ◽  
pp. 3916
Author(s):  
Marta Wiśniewska ◽  
Andrzej Kulig ◽  
Krystyna Lelicińska-Serafin

Municipal waste treatment plants are an important element of the urban area infrastructure, but also, they are a potential source of odour nuisance. Odour impact from municipal waste processing plants raises social concerns regarding the well-being of employees operating the plants and residents of nearby areas. Chemical methods involve the determination of the quantitative composition of compounds comprising odour. These methods are less costly than olfactometry, and their efficiency is not dependent on human response. The relationship between the concentration of a single odorant and its odour threshold (OT) is determined by the odour activity value (OAV) parameter. The research involved the application of a multi-gas detector, MultiRae Pro. Measurements by means of the device were conducted at three municipal waste biogas plants located in Poland. In this paper we describe the results obtained when using a detector during the technological processes, the unitary procedures conducted at the plants, and the technological regime. The determination of these relationships could be useful in the development of odour nuisance minimization procedures at treatment plants and the adjustment to them. This is of paramount importance from the viewpoint of the safety and hygiene of the employees operating the installations and the comfort of residents in the areas surrounding biogas plants. Monitoring of expressed odorant emissions allows the course of technological processes and conducted unit operations to be controlled.


AIHAJ ◽  
1971 ◽  
Vol 32 (6) ◽  
pp. 410-411 ◽  
Author(s):  
ROBERT M. ASH ◽  
JEREMIAH R. LYNCH
Keyword(s):  

2019 ◽  
Vol 16 (6) ◽  
pp. 789-795 ◽  
Author(s):  
Jamshid Soltani-Nabipour ◽  
Abdollah Khorshidi ◽  
Farideh Sadeghi

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