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26th International Mining Congress and Exhibition of Turkey, IMCET 2019, 16 April 2019 through 19 April 2019, , 151960 Underground mine openings are driven by installation of light supports as possible as engineering norms dictate. It is possible to ensure adequate advance rates and cost by employing such light support systems. If the delicate balance between the rock load and support capacity is unfavourably disturbed, the support systems may deform. In this study, the repair options for a deformed underground opening are examined and a few support systems are compared to each other. A multi-layer support system was decided to be used which enables the implementation of various backfill types. The roadway with a great tendency to deform within a short time interval, was kept stable for a comparably long period. It was observed that the multiple layer support system is open to improvement and adaptable to the different problems. However, the support system is developed for the specific operational conditions present in the mine. Copyright © IMCET 2019 International Mining Congress and Exhibition of Turkey. All rights reserved. Yeraltı maden açıklıkları mühendislik normlarına göre mümkün olan en hafif tahkimat sistemleri ile açılır. Böylece uygun ilerleme hızları ve maliyet sağlanabilir. Eğer kaya yükleri ve tahkimat sistemleri arasındaki hassas denge bozulur ise tahkimat sistemleri deforme olabilir. Çalışmada deforme olan bir yeraltı açıklığının tamirat seçenekleri incelenmiş ve birkaç tahkimat sistemi karşılaştırılmıştır. Farklı dolgu seçenekleri kullanmanın mümkün olduğu çok katmanlı tahkimat sisteminin uygulanmasına karar verilmiştir. Sıkışabilir dolgu kullanımı ile çok kısa süre içerisinde deforme olma eğiliminde olan galeri, kıyasla çok daha uzun süre boyunca duraylı halde tutulabilmiştir. Çok katmanlı tahkimat sistemi geliştirmeye açık ve probleme göre değiştirilebilen bir yöntem olduğu görülmüş, çalışmanın yapıldığı işletmenin uygulama koşullarına özel geliştirilmiştir.

Climatic and altitude features of living region may affect human body. Many changes in several tissues and organs and several health problems due to climatic and altitude effects were defined in the literature. However, there were limited number of studies which evaluated correlation between development of frontal sinus and climatic/altitude effect. In this study, widths, heights, AP lengths and volumes of frontal sinus were compared by Paranasal CT scans in populations living in Van which has colder climate and higher altitude and Manisa which has milder climate and lower altitude. It was found that widths, antero-posterior lengths and volumes of frontal sinus were higher in populations living in colder climate and higher altitude according to populations living in milder climate and lower altitude. Heights of frontal sinuses were on the contrary of this. These results were found appropriate to increasing of cephalic index in cold climate according to Allen’s Rule. We suggest that larger population study should be made with peoples having the same or similar race and genetic structure in different climate and altitude regions and the proportional comparison of frontal sinus measurements with cephalic index should be considered in future studies. © 2017, Universidad de la Frontera. All rights reserved.

WOS:000387632000009 The performances of a new solar distillery of essential oils with CPCs were determined for different ambient and working conditions. The essential oil distillation system was composed of seven compound parabolic solar collectors and a distillation unit. The heat transfer oil heated by CPCs was pumped to the distillation unit by a circulation pump. Eleven essential oil distillation trials were carried out in July, August and September. In some trials, compound parabolic reflectors were covered by a black fabric sheet to observe the effectiveness of solar concentration. CPC reflectors increased the total solar radiation coming onto the surface of absorber by 3.55 times on the average. When solar radiation was concentrated and the sky was without clouds, 78-80% of the total energy need of essential oil distillation was supplied from solar energy. The total solar radiation coming on the collector ranged from 23.20 kWh to 26.90 kWh in the trials. However, the occurrence of clouding during daytime required partly electrical heating to complete the distillation process. When the solar radiation was not concentrated, the distillation water could not boil without an electrical heater. 26 to 40 ml essential oils were extracted from 5 kg mint plants per day.

PURPOSE: Most intracranial dissecting aneurysms involve the posterior circulation, and the intradural segment of the vertebral artery is affected in majority of these. The aim of this report is to summarize the results of endovascular treatment in patients with ruptured dissecting aneurysms of the non-vertebral posterior circulation. MATERIALS AND METHODS: During the past six years, the medical records of 23 patients with subarachnoid hemorrhage related to dissecting aneurysm arising from non-vertebral arteries of the posterior circulation were reviewed retrospectively. RESULTS: The locations of the aneurysms were as follows: seven in the posterior cerebral artery, five in the superior cerebellar artery, six in the basilar artery trunk, and five in the posterior inferior cerebellar artery. Two basilar artery aneurysms were treated in the chronic stage with stent-assisted coil embolization. In the remaining patients, the aneurysm was coiled with or without parent vessel occlusion in the acute stage. One patient re-bled and died 20 days after initial treatment. At follow-up, recanalization had occurred in two patients, whose aneurysms were re-embolized successfully. Overall, three patients had permanent neurological sequelae, two had transient neurological sequelae, and one patient died. CONCLUSION: Embolization with or without parent artery occlusion is feasible with an acceptable morbidity and mortality rate in the treatment of dissecting aneurysms confined to non-vertebral arteries of the posterior circulation. © Turkish Society of Radiology 2009.

PURPOSE Most intracranial dissecting aneurysms involve the posterior circulation, and the intradural segment of the vertebral artery is affected in majority of these. The aim of this report is to summarize the results of endovascular treatment in patients with ruptured dissecting aneurysms of the non-vertebral posterior circulation.