| 1. |
|
|
| 2. |
- Adamopoulos, Stergios, et al.
(författare)
-
Wood recycling in Europe
- 2011
-
Konferensbidrag (refereegranskat)abstract
- Nowadays, waste wood is a valuable secondary raw material that can cover much of the wood-based panel industry's needs and a major source of renewable energy. The various categories of waste wood are described in European legislation and standards but in practice mostly followed industry practices relating to the purchase, classification and use of recovered wood. The European Panel Federation (EPF) proposes a three category classification system: untreated wood, non-hazardous treated wood, hazardous waste wood. The traditional practice of recycling in industry included mechanical handling of waste wood while new improved methods involve hydrothermal treatments. Of the total approximately 30 million cubic meters of recovered wood in Europe 38% is recycled, 34% is used for energy production and 28% ends up in landfills or composting. In the future recovered wood is expected to play an increasingly important role in the sustainability of wood-based panel industries as well as for the protection of the environment, and therefore new technologies are needed to fully explore this valuable resource.
|
|
| 3. |
- Adamopoulos, Stergios, et al.
(författare)
-
ΑΝΑΚΤΗΣΗ ΞΥΛΟΤΕΜΑΧΙΔΙΩΝ ΑΠΟ ΑΠΟΣΥΡΟΜΕΝΕΣ ΜΟΡΙΟΠΛΑΚΕΣ ΜΕ ΥΔΡΟ-ΜΗΧΑΝΙΚΕΣ ΜΕΘΟΔΟΥΣ : [ Chips recovered from waste particleboards by hydro-mechanical methods ]
- 2017
-
Ingår i: ΠΡΑȀΤǿȀΑ : 18ου Πανελλήνιου Δασολογικού Συνεδρίου : “Η Ελληνική Δασοπονία μπροστά σε σημαντικές προκλήσεις: αειφορική διαχείριση δασών, δασικοί χάρτες, περιβαλλοντικές τεχνολογίες – δικτύωση και προστασία φυσικού περιβάλλοντος”. - : Hellenic Forestry Society. - 9789608947870 ; , s. 349-356
-
Konferensbidrag (refereegranskat)abstract
- It was studied the recovery of wood chips from waste particleboards by immersion in water at ambient temperature and by mechanical treatment (agitation and impact, waterblasting). Four different categories of waste particleboards were used, with and without coating, after their reduction in smaller pieces with dimensions of about 7 × 8 cm. The investigated methods were: (I) immersion for 3 days-impregnation with vacuum and pressure-agitation and impact (II) immersion for 7 days-drying-rewetting for 12 hours-agitation and impact (III) immersion for 3 days-waterblasting. The maximum thickness swelling (about 90%) was achieved by immersing the particleboards in the water for 3 days, and therefore the vacuum and pressure impregnation step can be omitted in practice. Recovery of wood chips was significantly higher (51.54%) in the case of successive wetting and drying cycles compared to simple immersion in water (17.32%). Both these methods I and II, involving agitation and impact for recovering wood chips from waste particleboards, are easily applicable at the industry. Method III with waterblasting resulted in complete recovery of wood chips within a very short time, but its application requires more research
|
|
| 4. |
|
|
| 5. |
|
|
| 6. |
- Carlsson, Gunnar E, 1930, et al.
(författare)
-
Etiology of temporomandibular disorders with special focus on the role of occlusion : Η αιτιολογία των Κρανιογναθικών Διαταραχών, με ιδιαίτερη έμφαση στο ρόλο της σύγκλεισης
- 2011
-
Ingår i: Odontostomatological Progress. - 0029-8506. ; 65:2, s. 180-203
-
Forskningsöversikt (refereegranskat)abstract
- The aim of this article was to present a systematic evidence –based review of literature related to the etiology of temporomandibular disorders (TMD). Since there is a scarcity of the highest level of evidence, randomized controlled studies (RCTs), on this topic, the best available knowledge of TMD etiology was mainly based on studies of lower level of evidence and some recent more or less systematic reviews. Accepting these limitations, the following conclusions have been drawn. TMDs comprise a number of disorders and conditionς in the orofacial region. It is therefore self-evident that the etiology is multifactorial. The comorbidity between TMD signs and symptoms and pain and disorders in other parts of the body has lately attracted much attention. Impaired general health and systemic diseases constitute important parts in the complex etiology of many TMD problems. The role of psychological and psychosocial factors in the TMD etiology have received great acceptance over the last few years. Recent research indicates that occlusion does not play a major role in the etiology of TMD. However, the long controversy regarding the role of occlusion in the pathogenesis of TMD has not yet been resolved. Several dentists, although acknowledging that its importance may be smaller than previously believed, still claim that occlusion cannot be completely ruled out as a possible contributing factor in the etiology of TMD. Even if the etiology of TMD is not fully known, successful management of most TMD patients is possible. The clinician should explain to the patient the probable nature of the condition and that most TMDs are benign and can be treated with simple methods with a good prognosis.
|
|
| 7. |
|
|
| 8. |
|
|
| 9. |
|
|
| 10. |
|
|
