scholarly journals Correction to: Development of Strategies to Reduce Ventilation and Heating Costs in a Swedish Sublevel Caving Mine—a Unique Case of LKAB’s Konsuln Mine

2021 ◽  
Author(s):  
S. Gyamfi ◽  
A. Halim ◽  
A. Martikainen
Keyword(s):  
Unique Case ◽  
Sublevel Caving

scholarly journals Development of Strategies to Reduce Ventilation and Heating Costs in a Swedish Sublevel Caving Mine—a Unique Case of LKAB’s Konsuln Mine

2021 ◽  
Author(s):  
S. Gyamfi ◽  
A. Halim ◽  
A. Martikainen
Keyword(s):  
Iron Ore ◽  
Power Reduction ◽  
Heating Power ◽  
Unique Case ◽  
Power Cost ◽  
Iron Ore Mine ◽  
Sublevel Caving ◽  
The Future ◽  
Reduction Strategies ◽  
Power Costs

AbstractThis paper outlines a unique case of the development of strategies to reduce ventilation and heating costs in Konsuln iron ore mine in northern Sweden. The mine, located just south of Luossavaara-Kiirunavaara Aktiebolag’s Kiruna iron ore mine, was developed as a test mine 2018–2020 for the Sustainable Underground Mining (SUM) project. Besides functioning as a test mine, Konsuln also contributes ore production. The existing mine ventilation system was designed for the current production rate of 0.8 million tons per annum (Mtpa). There is a plan to increase this rate to between 1.8 and 3 Mtpa in the future, and this requires the primary fans to be upgraded. Therefore, a study was carried out to determine whether using ventilation on demand (VOD) could avoid this fan upgrade and reduce Konsuln’s ventilation and heating power costs in the future. The study also investigated whether using battery electric vehicles (BEVs) along with VOD or as a standalone strategy could further reduce these power costs. In addition, the study analyzed the suitability of heating power reduction strategies presently or previously used in the Nordic countries and Canada to investigate potential additional strategies to reduce the heating power cost, the largest portion of Konsuln’s ventilation and heating power costs. The study found using VOD can avoid the expensive upgrading of the existing primary fans and reduce Konsuln’s ventilation and heating power costs in the future. Using BEVs can further reduce these costs. Finally, none of the Nordic and Canadian heating power reduction strategies is suitable for Konsuln because they require unique conditions that do not exist in Konsuln.

Melanosarcoma (Malignant Melanoma) of the Rectosigmoid : Report of a Unique Case

1949 ◽  
Vol 12 (1) ◽  
pp. 142-145 ◽  
Author(s):  
Moses Behrend ◽  
Albert Behrend
Keyword(s):  
Malignant Melanoma ◽  
Unique Case

An unique case of celiac disease with hypocoagulation and secondary hyperparathyreodism in elderly patient - a case report

2017 ◽  
Author(s):  
Gocha Barbakadze ◽  
Lali Tigishvili ◽  
Levan Ramishvili ◽  
Nani Tsikarishvili ◽  
Koba Burnadze
Keyword(s):  
Elderly Patient ◽  
Celiac Disease ◽  
Case Report ◽  
Unique Case

A Giant Right Coronary Artery of Diffuse Ectasia Induced by a Right Ventricular Fistula

2015 ◽  
Vol 18 (6) ◽  
pp. 253
Author(s):  
Renyuan Li ◽  
Yiming Ni ◽  
Peng Teng ◽  
Weidong Li
Keyword(s):  
Coronary Artery ◽  
Right Coronary Artery ◽  
Artery Bypass ◽  
Coronary Artery Fistula ◽  
Rare Entity ◽  
Fistula Closure ◽  
Unique Case ◽  
Coronary Ectasia ◽  
The Right ◽  
Giant Size

<p>Coronary artery fistula (CAF) is a rare entity. Sometimes it may associate with mild diffuse or segmental coronary ectasia. CAF with giant coronary artery is exceptionally rare. We present a unique case of a 49-year-old female patient with a giant right coronary artery of diffuse ectasia coexisting with a fistula draining into the right ventricle. To our best knowledge, CAF with diffuse coronary ectasia of such giant size has never been reported. The patient was treated successfully by resection of the dilated right coronary artery, fistula closure, and coronary artery bypass grafting.</p>

Pricing of IPOs: The Unique Case of Turkish REITs

2015 ◽  
Author(s):  
Isil Erol ◽  
Dogan Tirtiroglu
Keyword(s):  
Unique Case

Intestinal Heterotopic Pancreas Involved by Simultaneous PanIN-2 Lesion and Endocrine Microadenoma: a Unique Case

2017 ◽  
Vol 26 (2) ◽  
pp. 199-202
Author(s):  
Remus Cornea ◽  
Sorina Taban ◽  
Cristian Suciu ◽  
Codruta Lazureanu ◽  
Alis Dema
Keyword(s):  
Histopathological Examination ◽  
Intraepithelial Neoplasia ◽  
Heterotopic Pancreas ◽  
Pancreatic Intraepithelial Neoplasia ◽  
Unique Case ◽  
Intraductal Papillary Mucinous Neoplasms ◽  
Pancreatic Endocrine Neoplasm ◽  
First Case ◽  
Mucinous Neoplasms

We hereby present the case of a 58-year-old male who underwent a total gastrectomy for gastric neoplasm. During the surgery, a tumor mass in the jejunum was identified, considered as metastasis, and resected. The histopathological examination of the jejunal lesion showed ectopic pancreas. In this area, two pathological distinct lesions were identified, one histologically compatible with pancreatic intraepithelial neoplasia (PanIN) type 2 lesion and the other with morphologic criteria for endocrine microadenoma. To our knowledge, this is the first case that evidences the presence of a concomitant premalignant exocrine lesion and benign endocrine lesion in a heterotopic pancreas (HP).Abbreviations: HP: heterotopic pancreas; IPMN: Intraductal Papillary Mucinous Neoplasms; PanIN: Pancreatic Intraepithelial Neoplasia; PEN: pancreatic endocrine neoplasm.

When a benign disease turns into disaster: a unique case of a surgically treated hemorrhagic sylvian fissure meningioma

2020 ◽  
Vol 64 (3) ◽  
Author(s):  
Francesco Guerrini ◽  
Elena Roca ◽  
Mariarosaria Verlotta ◽  
Gianluca Grimod ◽  
Giannantonio Spena
Keyword(s):  
Benign Disease ◽  
Sylvian Fissure ◽  
Unique Case
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