Indoor pollution and metal corrosion by organic acids: Case study of the Oteiza Museum (Spain)

2013 ◽  
pp. 111-114 ◽  
Keyword(s):  
Organic Acids ◽  
Metal Corrosion ◽  
Indoor Pollution

Case study: Failure analysis for metal corrosion induced by pressure pot test

2010 ◽  
Vol 50 (9-11) ◽  
pp. 1436-1440
Author(s):  
D. Mello ◽  
R. Ricciari ◽  
M. Aiello ◽  
M. Astuto
Keyword(s):  
Failure Analysis ◽  
Metal Corrosion

A case study of indoor pollution by Chinese cooking

1998 ◽  
Vol 65 (1-4) ◽  
pp. 217-224 ◽  
Author(s):  
E. Benfenati ◽  
P. Pierucci ◽  
D. Niego
Keyword(s):  
Indoor Pollution ◽  
Chinese Cooking

Cryoprotection properties of salts of organic acids: a case study for a tetragonal crystal of HEW lysozyme

2010 ◽  
Vol 66 (7) ◽  
pp. 789-796 ◽  
Author(s):  
Grzegorz Bujacz ◽  
Blanka Wrzesniewska ◽  
Anna Bujacz
Keyword(s):  
Organic Acids ◽  
Great Majority ◽  
Sodium Formate ◽  
Organic Salts ◽  
X Ray Crystallography ◽  
Cryoprotective Agents ◽  
Potassium Tartrate ◽  
Salts Of Organic Acids ◽  
High Concentrations

Currently, the great majority of the data that are used for solving macromolecular structures by X-ray crystallography are collected at cryogenic temperatures. Selection of a suitable cryoprotectant, which ensures crystal stability at low temperatures, is critical for the success of a particular diffraction experiment. The effectiveness of salts of organic acids as potential cryoprotective agents is presented in the following work. Sodium formate, acetate, malonate and citrate were tested, as were sodium potassium tartrate and acetate in the form of potassium and ammonium salts. For each salt investigated, the minimal concentration that was required for successful cryoprotection was determined over the pH range 4.5–9.5. The cryoprotective ability of these organic salts depends upon the number of carboxylic groups; the lowest concentration required for cryoprotection was observed at neutral pH. Case-study experiments conducted using the tetragonal form of hen egg-white lysozyme (HEWL) confirmed that salts of organic acids can successfully act as cryoprotective agents of protein crystals grown from high concentrations of inorganic salts. When crystals are grown from solutions containing a sufficient concentration of organic acid salts no additional cryoprotection is needed as the crystals can safely be frozen directly from the crystallizing buffers.

scholarly journals Metal Corrosion in Polychrome Baroque Lead Sculptures: a Case Study

2013 ◽  
Author(s):  
Dalva L. A. de Faria ◽  
Thiago S. Puglieri ◽  
Luiz Antonio C. Souza
Keyword(s):  
Metal Corrosion

scholarly journals Liquefying Compounds by Forming Deep Eutectic Solvents: A Case Study for Organic Acids and Alcohols

2020 ◽  
Vol 124 (20) ◽  
pp. 4174-4184 ◽  
Author(s):  
Dinis O. Abranches ◽  
Renato O. Martins ◽  
Liliana P. Silva ◽  
Mónia A. R. Martins ◽  
Simão P. Pinho ◽  
...  
Keyword(s):  
Organic Acids ◽  
Deep Eutectic Solvents

scholarly journals Indoor and Outdoor Measurements of Particulate Matter Concentrations: A Case Study Košice-Sever, Slovakia

2020 ◽  
Vol 15 (1) ◽  
pp. 77-88
Author(s):  
Eva Krídlová Burdová ◽  
Silvia Vilčeková ◽  
Peter Kapalo
Keyword(s):  
Particulate Matter ◽  
Winter Season ◽  
Mean Value ◽  
Particulate Matters ◽  
Indoor Pollution ◽  
Air Velocity ◽  
Indoor Pollutants ◽  
High Concentrations ◽  
Indoor And Outdoor

Abstract An occurrence of indoor particulate matters largely depends on outdoor pollution and its transportation indoors as well as on the presence of indoor pollution sources. Pollutants can flow from outdoor to indoor or indoor to outdoor under various conditions e.g. contribution of indoor pollutants to outdoor (in rural location with biomass fuel used for cooking) or outdoor to indoor in urban locations. This study aims to carry out an experimental investigation of particulate matter (PM) concentrations, temperature, humidity and air velocity during three days in winter season in Košice-Sever, Slovakia. Values of outdoor PM10 concentrations ranged from 12.58 μg/m3 to 6,627.51 μg/m3. Extremely high concentrations of PM10 were found near the traffic. Outdoor mean value of PM2.5 (21.82 μg/m3) did not exceed a permissible value of 25 μg/m3. Overloads by PM10 concentrations denote almost 108% and 2,270%. The indoor/outdoor (I/O) ratio was <1 for all fractions of particulate matters.

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