Sulphur, nitrogen and carbon content of Sphagnum capillifolium and Pseudevernia furfuracea exposed in bags in the Naples urban area

2004 ◽  
Vol 129 (1) ◽  
pp. 145-158 ◽  
Author(s):  
S Vingiani ◽  
P Adamo ◽  
S Giordano
Keyword(s):  
Carbon Content ◽  
Urban Area ◽  
Pseudevernia Furfuracea ◽  
Naples Urban Area

Characterization of shallow volcanoclastic deposits by turning ray seismic tomography: an application to the Naples urban area

2003 ◽  
Vol 52 (1) ◽  
pp. 11-21 ◽  
Author(s):  
Giovanni Bais ◽  
Pier Paolo G Bruno ◽  
Vincenzo Di Fiore ◽  
Antonio Rapolla
Keyword(s):  
Urban Area ◽  
Seismic Tomography ◽  
Naples Urban Area

Hail detection in Naples urban area using single-polarization X-band weather radar: Preliminary results

2015 ◽  
Author(s):  
Vincenzo Capozzi ◽  
Vincenzo Mazzarella ◽  
Marzia Moccia ◽  
Giorgio Budillon ◽  
Errico Picciotti ◽  
...  
Keyword(s):  
Urban Area ◽  
Weather Radar ◽  
Preliminary Results ◽  
X Band ◽  
Single Polarization ◽  
Naples Urban Area

scholarly journals Assessment of air pollution by toxic elements on petrol stations using moss and lichen bag technique

2017 ◽  
Vol 63 (No. 8) ◽  
pp. 355-361 ◽  
Author(s):  
Demková Lenka ◽  
Baranová Beáta ◽  
Oboňa Jozef ◽  
Árvay Július ◽  
Lošák Tomáš
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Air Pollution ◽  
Urban Area ◽  
Toxic Elements ◽  
Metal Accumulation ◽  
Heavy Metal Accumulation ◽  
Hypogymnia Physodes ◽  
Lower Content ◽  
Pseudevernia Furfuracea

Three moss (Pleurosium spp., Polytrichum spp., Rhytidiadelphus spp.) and two lichen taxa (Hypogymnia physodes L., Pseudevernia furfuracea L.), were exposed for four weeks in six petrol stations, two consecutive years (2015–2016), in urban area of the Prešov city (Slovakia), to assess accumulation of selected airborne elements Cd, Co, Cu, Fe, Hg, Mn, Ni, Pb and Zn. Significantly highest (P < 0.01) ability to accumulate Zn, Ni, Co and Fe was found in Pleurosium spp.; Pseudevernia furfuracea was determined the best accumulator of Hg, whereas Rhytidiadelphus spp. was found as the least suitable for this purpose. No significant differences in heavy metal accumulation between moss and lichen taxonomic group were found. Samples of conifer (used as a moss/lichen bag holder) showed significantly lower content of heavy metals compared to mosses and lichens. Major content of heavy metals trapped in the air around petrol stations, did not originate from the petrol combustion, but predominantly from the car body, which is mechanically disrupted during fuelling.

Real Time Emissive Behaviour of a Bi-Fuel Euro 4 SI Car in Naples Urban Area

2013 ◽  
Vol 6 (3) ◽  
pp. 959-967 ◽  
Author(s):  
Giovanni Meccariello ◽  
Livia Della Ragione ◽  
Maria Vittoria Prati ◽  
Maria Antonietta Costagliola ◽  
Valerio Saccoccia
Keyword(s):  
Real Time ◽  
Urban Area ◽  
Naples Urban Area

Bleaching ability of pre-hydrolyzed pulps in the context of a biorefinery mill

TAPPI Journal ◽  
2013 ◽  
Vol 12 (11) ◽  
pp. 49-53 ◽  
Author(s):  
CHRISTINE CHIRAT ◽  
LUCIE BOIRON ◽  
DOMINIQUE LACHENAL
Keyword(s):  
Carbon Content ◽  
Acid Hydrolysis ◽  
13C Nmr ◽  
Kraft Lignin ◽  
Kappa Number ◽  
Hydroxyl Groups ◽  
Kraft Pulps ◽  
Quaternary Carbon ◽  
Oxygen Delignification

Autohydrolysis and acid hydrolysis treatments were applied on mixed softwood chips. The cooking ability was studied by varying the alkali and duration of the cook. Pulps with kappa numbers varying from 30 to 70 were obtained. The bleaching ability of these pulps was studied and compared to control kraft pulps. The prehydrolyzed pulps were shown to be more efficiently delignified by oxygen than the control kraft pulps starting from the same kappa number. Furthermore, the final bleaching was also easier for these pulps. It was also shown that extensive oxygen delignification applied on high-kappa pre-hydrolyzed pulps could be a way to improve the overall yield, which is a prerequisite for the development of such biorefinery concepts. Lignin was isolated from the control kraft and the two pre-hydrolyzed kraft pulps and analyzed by 13C NMR. Lignins from pre-hydrolyzed kraft pulps had similar free phenolic groups content to the control kraft lignin, but their aliphatic hydroxyl groups and β-O-4 content were lower than for the control lignin. The quaternary carbon content was the same for all the samples.

Sign in / Sign up

Export Citation Format

Share Document