Effect of certain technical factors of oxygen-converter melting on the wear of periclase-spinel brick

Refractories ◽  
1966 ◽  
Vol 7 (11-12) ◽  
pp. 707-711
Author(s):  
S. I. Lifshits ◽  
V. I. �ntin
Keyword(s):  
Oxygen Converter ◽  
Technical Factors ◽  
Converter Melting

Slag-lining reactions in oxygen converter melting

Refractories ◽  
1968 ◽  
Vol 9 (3-4) ◽  
pp. 143-148
Author(s):  
V. D. Umnov ◽  
V. Ya. Pyatikop ◽  
V. A. Plokhikh ◽  
L. N. Zakharchenko ◽  
V. V. Slipchenko ◽  
...  
Keyword(s):  
Oxygen Converter ◽  
Converter Melting

Effect of some technological parameters of oxygen converter melting on the resistance of tarred dolomite ? Magnesite linings

Refractories ◽  
1970 ◽  
Vol 11 (1-2) ◽  
pp. 104-107
Author(s):  
A. F. Kuznetsov ◽  
P. I. Sham ◽  
N. K. Pashchenko ◽  
V. A. Bol'shakov ◽  
I. G. Zel'tser
Keyword(s):  
Oxygen Converter ◽  
Technological Parameters ◽  
Converter Melting

The effect of technical factors on hue distribution in elastographic images: a phantom study

2008 ◽  
Vol 29 (S 1) ◽  
Author(s):  
SM Dudea ◽  
C Botar-Jid ◽  
D Dumitriu ◽  
A Ciurea ◽  
A Chiorean ◽  
...  
Keyword(s):  
Phantom Study ◽  
Technical Factors

scholarly journals Considerations on Conducting Research on Wellness in the Context of the Learning Environment

2021 ◽  
Vol 10 ◽  
pp. 216495612198970
Author(s):  
Larry D Gruppen ◽  
Miklos C Fogarasi
Keyword(s):  
Learning Environment ◽  
Research Evidence ◽  
Organizational Factors ◽  
Multidimensional Model ◽  
Technical Factors ◽  
Conducting Research ◽  
The Impact ◽  
Meaningful Research ◽  
Psychosocial Dimension ◽  
Theoretical Conceptualization

The learning environment (LE) provides a context for many educational phenomena, of which wellness and burnout are particularly important. The LE can be thought of as consisting of a psychosocial dimension of personal, social, and organizational factors and a sociomaterial dimension that consists of spatial and technical factors. The interplay between elements of the LE and wellness of the participants is complex and only partially understood, requiring further research. Using this multidimensional model to describe and to plan to deliberately modify the learning environment can foster more rigorous and meaningful research evidence about the interaction of wellness and the LE. This article highlights four key considerations that scholars of wellness should consider when exploring the impact of the LE or designing interventions to modify the environment. These include 1) a thoughtful definition and theoretical conceptualization of the LE, 2) clarity about the study variables that are essential to the study question(s), 3) thoughtful and appropriate measurement of those variables, and 4) a study design that balances quality with feasibility. We provide a practical illustration of how these considerations can be applied in studies exploring the intersection of wellness and the LE.

scholarly journals Dislocated hinge fractures are associated with malunion after lateral closing wedge distal femoral osteotomy

2021 ◽  
Author(s):  
Marco-Christopher Rupp ◽  
Philipp W. Winkler ◽  
Patricia M. Lutz ◽  
Markus Irger ◽  
Philipp Forkel ◽  
...  
Keyword(s):  
Femoral Osteotomy ◽  
Common Finding ◽  
Fracture Type ◽  
Varus Malalignment ◽  
Distal Femoral Osteotomy ◽  
Closing Wedge ◽  
Increased Risk ◽  
Surgical Data ◽  
Technical Factors ◽  
Hinge Fracture

Abstract Purpose To evaluate the incidence, morphology, and associated complications of medial cortical hinge fractures after lateral closing wedge distal femoral osteotomy (LCW-DFO) for varus malalignment and to identify constitutional and technical factors predisposing for hinge fracture and consecutive complications. Methods Seventy-nine consecutive patients with a mean age of 47 ± 12 years who underwent LCW-DFO for symptomatic varus malalignment at the authors’ institution between 01/2007 and 03/2018 with a minimum of 2-year postoperative time interval were enrolled in this retrospective observational study. Demographic and surgical data were collected. Measurements evaluating the osteotomy cut (length, wedge height, hinge angle) and the location of the hinge (craniocaudal and mediolateral orientation, relation to the adductor tubercle) were conducted on postoperative anterior–posterior knee radiographs and the incidence and morphology of medial cortical hinge fractures was assessed. A risk factor analysis of constitutional and technical factors predisposing for the incidence of a medial cortical hinge fracture and consecutive complications was conducted. Results The incidence of medial cortical hinge fractures was 48%. The most frequent morphological type was an extension fracture type (68%), followed by a proximal (21%) and distal fracture type (11%). An increased length of the osteotomy in mm (53.1 ± 10.9 vs. 57.7 ± 9.6; p = 0.049), an increased height of the excised wedge in mm (6.5 ± 1.9 vs. 7.9 ± 3; p = 0.040) as well as a hinge location in the medial sector of an established sector grid (p = 0.049) were shown to significantly predispose for the incidence of a medial cortical hinge fracture. The incidence of malunion after hinge fracture (14%) was significantly increased after mediolateral dislocation of the medial cortical bone > 2 mm (p < 0.05). Conclusion Medial cortical hinge fractures after LCW-DFO are a common finding. An increased risk of sustaining a hinge fracture has to be expected with increasing osteotomy wedge height and a hinge position close to the medial cortex. Furthermore, dislocation of a medial hinge fracture > 2 mm was associated with malunion and should, therefore, be avoided. Level of evidence Prognostic study; Level IV.

scholarly journals Distal Cervical Carotid Artery Dissection after Carotid Endarterectomy: A Complication of Indwelling Shunt

2010 ◽  
Vol 2010 ◽  
pp. 1-2 ◽  
Author(s):  
Tomonori Tamaki ◽  
Node Yoji ◽  
Norihiro Saito
Keyword(s):  
Carotid Artery ◽  
Carotid Endarterectomy ◽  
Rare Case ◽  
Internal Carotid ◽  
Carotid Artery Dissection ◽  
Artery Dissection ◽  
Internal Carotid Artery Dissection ◽  
Surgical Methods ◽  
Distal Internal Carotid Artery ◽  
Technical Factors

The technical factors and surgical methods employed in carotid endarterectomy are controversial. In particular, whether or not to use an indwelling arterial shunt during carotid endarterectomy remains a source of conflict. We describe a rare case in which uncomplicated carotid endarterectomy was followed by distal internal carotid artery dissection and suggest that this devastating complication was due to intimal damage produced by the use of an indwelling arterial shunt.

Sign in / Sign up

Export Citation Format

Share Document