Plazma vodikovo redukcijsko pretaljivanje - opcija za izradu čelika u budućnosti

The steel industry is a mayor source of global CO2-emission. Lager reductions of greenhouse gases are the challenge to develop new processes, like Hydrogen Plasma Smelting Reduction (HPSR). The scientific basis and results of HPSR laboratory experiments led to the development of a concept for an HPSR-plant on industrial scale. A technology assessment shows the potential for a cheaper and most environmental friendly steelmaking in the future, when extensive development work has been done.Industrija čelika je glavni izvor globalne emisije CO2. Veće smanjivanje stakleničkih plinova predstavlja izazov za razvoj novih procesa poput plazma vodikovog redukcijskog pretaljivanja (HPSR). Znanstvena dostignuća I rezultati HPSR laboratorijskih pokusa doveli su do razvoja koncepta za HPSR postrojenja na industrijskoj razini. Tehnološki trošak pokazuje mogućnost jeftinije i ekološki povoljnijeg načina izrade čelika u budućnosti kada prestane intenzivni razvoj

Razvoj i stanje LD-postupka

Entwicklung des LD-Verfahrens und Anteil an der Welt Stahlproduktion - Verfahrenstechnische und metallurgische Merkmale des LD-Prozesses - Abbrand von Kohlenstoff und Verschlackung der Eisenbegleitelemente - Zustand von Schmelze und Schlacke zu Blasende - Schlackenverwertung und Umweltschutz - Leistungsdaten von LD-Stahlwerken.Razvoj LD-postupka i njegov udio u svjetskoj proizvodnji čelika - Procesne i metalurške značajke LD-procesa - Izgaranje ugljika i prijelaz željezo - pratećih elemenata u trosku - Stanje taline i troske na kraju upuhavanja - Iskorištavanje troske i zaštita okoliša - Podaci o učinkovitosti LD-čeličana

Increased attachment security is related to early therapy drop-out in substance use disorders

Abstract Objectives Previous research work suggests a positive association between secure attachment and increased therapy adherence (TA) in different patient groups. However, there is still a strong need for research focusing on the influence of attachment on TA in substance use disorder (SUD) treatment. Hence, this study attempts to investigate the predictive value of different attachment patterns concerning TA in SUD inpatients. Results 122 (34 female) SUD inpatients completed the Attachment Style Questionnaire (ASQ) during the entry phase of therapeutic community treatment. After 6 weeks, subjects who remained in therapy (n = 47) completed the ASQ for a second time. In line with the literature, agglomerative Cluster Analysis suggested a two-cluster solution (Cluster I: increased secure attachment pattern; Cluster II: increased insecure attachment pattern). Notably, inpatients in Cluster I were more likely to drop out of treatment within the first 6 weeks (p < .001). Furthermore, subjects showed less “Confidence in Self and Others” (p < .05) after 6 weeks of treatment. Our findings indicate a negative predictive value of increased attachment security for TA in SUD inpatients. This finding probably mirrors a more realistic kind of self-assessment. More generally, the importance of considering attachment styles in SUD treatment is underlined

LOXJET - an autogenous flame cutting process for maximum cutting speeds

Translated from German (Berg. Huettenmaenn. Monatsh. 1989 v. 134(5) p. 133-136)Available from British Library Document Supply Centre- DSC:9022.06(BISI-Trans--27449)T / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo

The influence of an attachment-related stimulus on oxytocin reactivity in poly-drug users undergoing maintenance therapy compared to healthy controls

Background: Substance use disorders (SUDs) have been described as a dysfunctional way to compensate for deficiencies in that person’s underlying attachment system. Furthermore, the neuropeptide oxytocin (OT), which is a critical component of the neurobiology of the attachment system, has been shown to effectively reduce addictive behavior and therefore has been discussed as a potential medication in SUD treatment. This study investigates variation in peripheral OT plasma levels as a function of exposure to an attachment-related stimulus in SUD patients compared to healthy controls (HCs). Methods: A total sample of 48 men, 24 inpatients in maintenance treatment who were diagnosed with poly-drug use disorder (PUD) and 24 HC, was investigated. A 15-min exposure to the Adult Attachment Projective Picture System (AAP) was used as an attachment-related stimulus and coded for attachment status. Blood samples before and after the AAP-assessment were taken and assayed for OT levels. Variation in baselines level of OT was examined in relation to the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST), the Adult Attachment-Scale (AAS), and the Brief Symptom Inventory (BSI). Results: Following the AAP stimulus controls showed no significant difference in OT levels elevation from baseline compared to the PUD group’s OT levels. Furthermore, in the PUD group only OT-baseline-levels may be negatively associated with the AAS subscale “Comfort with Closeness” and “Anxiety” and lifetime substance use. Discussion: Our results suggest that peripheral OT levels in poly-drug users undergoing maintenance treatment are not significantly different in responsiveness to an attachment related stimulus compared to HC. With regard to non-significant tendencies observed in this study which hint toward decreased OT-reactivity in the PUD group, further research is needed to explore this hypothesis with increased statistical power