scholarly journals Geoheritage and Resilience of Dallol and the Northern Danakil Depression in Ethiopia

Geoheritage ◽  
2020 ◽  
Vol 12 (4) ◽  
Author(s):  
Viktor Vereb ◽  
Benjamin van Wyk de Vries ◽  
Miruts Hagos ◽  
Dávid Karátson
Keyword(s):  
Quantitative Methods ◽  
Management Plan ◽  
Geothermal System ◽  
Practical Consideration ◽  
Economic Exploitation ◽  
Political Relations ◽  
Geothermal Activity ◽  
World Class ◽  
Step Study ◽  
Northern Segment

AbstractThe Danakil Depression, located in the northern segment of the Afar rift, is a world-class example of active rifting and the birth of a new ocean. The unique, yet only partially interpreted geothermal system of Dallol in northern Danakil is currently receiving renewed attention by researchers and visitors despite its extreme climate since the recent improvements of infrastructure and the stabilisation of Ethio-Eritrean political relations. Previous studies focused on the general geological description, the economic exploitation of potash reserves and interpretation of the complex hydrothermal processes. Continuing monitoring of geothermal activity has not yet been carried out, and the valorisation of local geoheritage has not accompanied the increased interest of tourists. Here, we present a three-step study in order to demonstrate the unique geological environment and international geoheritage significance of Dallol and Danakil. A three-year-long remote sensing campaign has been done to provide information on improving the resilience of visitors through interpreted, monthly hazard maps, and on following up the changes of geothermal activity. Over the same time, the first geoheritage assessment of the region for 13 geosites was carried out along with a comparative analysis of three quantitative methods (to evaluate the scientific importance and the geotouristic development potential of the area). Finally, with the input of the assessment, a preliminary geoheritage management plan was created for practical consideration by stakeholders toward a geoconservation and geotourism development, as well as a resilience system of this peculiar area.

PENGELOLAAN OBJEK WISATA PERTANIAN AGROWISATA KAMPOENG KOPI BANARAN, PT. PERKEBUNAN NUSANTARA IX

2017 ◽  
Vol 8 (1) ◽  
pp. 21-26
Author(s):  
Hasdevi Agrippina Dradjat ◽  
Wahju Qamara Mugnisjah
Keyword(s):  
Quantitative Methods ◽  
Landscape Management ◽  
Management Plan ◽  
Literature Study ◽  
Coffee Plantation ◽  
Daily Lives ◽  
Qualitative And Quantitative ◽  
Qualitative And Quantitative Methods ◽  
Visual Landscape

People want an experience that’s completely different from their daily lives which can be done by enjoying tourism area, especially agrotourism area (Utama, 2011). Kampoeng Kopi Banaran (Kakoba) is an agrotourism of coffee, rubber and cocoa which main priority is to utilize its agriculural land as a tourism area. Kakoba has some geographically potencies, such as located in a strategic area among the triangle of Joglosemar (Jogjakarta, Solo and Semarang), good accesibility and has a coffee plantation as a visual landscape. Main goals of this study are to understand the users’ expectation, to make the recommendation of landscape management plan and to make the recommendation to reduce the gap between ideal and actual conditions. Several steps are used for this study such as observation, interviews, collecting literature study, and reporting the study in a final log book.. The methods used are both qualitative and quantitative methods. The results of this study are the understanding of the user’s expectation, a recommendation for Kakoba’s management plan, and recommendation to reduce the gap between ideal and actual conditions for agritourism management.

An evaluation of preventive maintenance framework in an Italian manufacturing company

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Kaustav Kundu ◽  
Fabiana Cifone ◽  
Federica Costa ◽  
Alberto Portioli-Staudacher ◽  
Matteo Rossini
Keyword(s):  
Preventive Maintenance ◽  
Management Plan ◽  
Added Value ◽  
Content Type ◽  
Starting Point ◽  
Manufacturing Company ◽  
World Class ◽  
Maintenance Model ◽  
First Time

PurposeThe purpose of this paper is to provide the description of an original framework for maintenance management plan development. The research aims to use in an integrated way different World Class Manufacturing (WCM)-based tools, in order to obtain a model which can be used for preventive maintenance in different industrial contexts.Design/methodology/approachIn this research, a conceptual framework of preventive maintenance was described and then it was evaluated through a qualitative study in an Italian company. The company was chosen based on an initial interview with the operations team and the model area was selected. Then, the location was reorganized in order to obtain a green field which could sustain the implementation of the framework tools.FindingsThe case study was carried out in a small-medium manufacturing company which produces quick-release couplings and multiconnections, ranging from medium to ultra-high pressure. The defined framework has proved to be easy to implement in a company with a corrective maintenance plan, allowing the maintenance department to embrace the preventive maintenance culture. The maintenance model has been well received from the employees.Practical implicationsThe framework allows a standardization of maintenance plans. Firstly, the standardization design itself allows finding previous wastes and consequent improvement areas. Then, it brings the improvement of a single machine which impacts all other machines in its family.Originality/valueThe added value of this study is the ability to integrate different WCM-based tools. Since the framework depicts a step-by-step process; it is also a starting point for companies that want to approach preventive maintenance for the first time.

scholarly journals New Conceptual Model for the Magma-Hydrothermal-Tectonic System of Krafla, NE Iceland

Geosciences ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 34 ◽  
Author(s):  
Knútur Árnason
Keyword(s):  
Isotope Composition ◽  
Geological Structure ◽  
Geothermal System ◽  
Geothermal Systems ◽  
Thermal Fluids ◽  
Tectonic History ◽  
Geothermal Activity ◽  
History Of ◽  
Tectonic System ◽  
Altered Basalt

The complexity of the Krafla volcano and its geothermal system(s) has puzzled geoscientists for decades. New and old geoscientific studies are reviewed in order to shed some light on this complexity. The geological structure and history of the volcano is more complex than hitherto believed. The visible 110 ka caldera hosts, now buried, an 80 ka inner caldera. Both calderas are bisected by an ESE-WNW transverse low-density structure. Resistivity surveys show that geothermal activity has mainly been within the inner caldera but cut through by the ESE-WNW structure. The complexity of the geothermal system in the main drill field can be understood by considering the tectonic history. Isotope composition of the thermal fluids strongly suggests at least three different geothermal systems. Silicic magma encountered in wells K-39 and IDDP-1 indicates a hitherto overlooked heat transport mechanism in evolved volcanos. Basaltic intrusions into subsided hydrothermally altered basalt melt the hydrated parts, producing a buoyant silicic melt which migrates upwards forming sills at shallow crustal levels which are heat sources for the geothermal system above. This can explain the bimodal behavior of evolved volcanos like Krafla and Askja, with occasional silicic, often phreatic, eruptions but purely basaltic in-between. When substantial amounts of silicic intrusions/magma have accumulated, major basalt intrusion(s) may “ignite” them causing a silicic eruption.

scholarly journals The Prospect of Implementing Safety Education in Malaysian Primary Schools: from the Perspective of School Administrators

2016 ◽  
Vol 6 (2) ◽  
pp. 45 ◽  
Author(s):  
Khamsiah Ismai ◽  
Muhamad Farhan Mohamad Shukri ◽  
Mastura Badzis ◽  
Ssekamanya Siraje Abdallah
Keyword(s):  
Community Involvement ◽  
Primary Schools ◽  
Quantitative Methods ◽  
Management Practices ◽  
Safety Management ◽  
School Administrators ◽  
Management Plan ◽  
Good Prospect ◽  
Safety Education ◽  
Safety Practices

Despite of the various attempts to implement safety practices in school, there still many unresolved issues related to students’ safety in schools. This study aimed to explore and examine current safety management practices in Malaysian primary schools and the type of safety management plans adopted by the administrators for ensuring students’ safety. The sample of this study consisted of 141 School Headmasters and Deputy Headmasters (Administration and Curriculum, Student Affairs or Co-curriculum), randomly selected from 138 primary schools in Kuala Lumpur and Selangor, Malaysia. Quantitative methods were used and the data of school administrators’ attitude and stances in implementation of safety management practices were gathered using a set questionnaire. The data was then tabulated, summarized and evaluated to draw conclusions from them, using the Statistical Package for the Social Science (SPSS). Results from the study indicated that there was a strong positive attitude among school administrators in relation to safety management plan and policy practices in school. Teachers’ and staffs’ participation and parental and community involvement are significantly and positively predicted by school administrators’ commitment and communication; as well as safety education, training and campaign at schools. Some of the safety practices investigated in the study were not observed in schools due to increasing workload and responsibilities of teachers and their time availability. Safety practices at the schools mostly depended on the issues that are considered as important by the respective schools. As the implication of this study, some recommendations were made to help schools to improve safety practices at school and promote cooperation between school administrators, teachers, parents and community as a whole. The study also implied that implementation of safety management education in Malaysian primary school has a good prospect.

Occurrence of K-feldspar-bearing hydrothermal breccias in the Bouillante geothermal field (Basse Terre – Guadeloupe)

2013 ◽  
Vol 184 (1-2) ◽  
pp. 119-128 ◽  
Author(s):  
Patricia Patrier ◽  
Sylvain Bruzac ◽  
Rebecca Pays ◽  
Daniel Beaufort ◽  
Vincent Bouchot ◽  
...  
Keyword(s):  
High Temperature ◽  
Textural Properties ◽  
Geothermal Field ◽  
Geothermal System ◽  
Geothermal Fluids ◽  
Argillic Alteration ◽  
Geothermal Activity ◽  
Cap Rock ◽  
Stage 1 ◽  
Mixed Layers

Abstract Surficial indicators of recent to present geothermal activity are present around Bouillante (Guadeloupe, French West Indies). Until lately, most mineralogical parageneses identified in this area were typical of low temperature alteration (< 100°C) with the occurrence of dioctahedral aluminous smectites accompanied by zeolites (heulandite-clinoptilolite) ± calcite ± silica ± kaolinite, as an evidence of the cap rock of the geothermal system. Recently, numerous boulders of highly silicified breccias containing high temperature minerals (> 200°C) have been identified in the Bouillante bay (Anse Marsolle). Their petrographic study revealed several hydrothermal parageneses typical of a multistage alteration process. Stage 1) An early potassic alteration facies typical of a high-temperature geothermal system characterized by K-feldspar/adularia + quartz + pyrite. K-feldspars have been shown to be present both in the clasts (replacement) and cement of these breccias. They are associated with quartz whose textural properties have revealed fracturing associated with boiling. Stage 2) An acid-sulphate advanced argillic alteration facies with the occurrence of jarosite, gypsum ± silica (≥ 150°C) as usually observed in the upper part of epithermal systems worldwide as marker of deeper boiling. Stage 3) An argillic alteration facies (illite/smectite mixed layers ± smectite ± calcite). With temperatures typically ranging from 100 to 200°C, this alteration facies is associated with near neutral fluids of mainly meteoric origin as known in the present geothermal reservoir (pH = 5.4). This alteration is the later one as evidenced by petrographic observations. These results highlight mineral assemblages and mineral textures characteristic of high temperature hydrothermal alteration in epithermal settings. The occurrence of these breccias involved the existence of eruptive events (magmatic/hydrothermal explosion) which ejected this material. Isotopic (oxygen, argon) and geochemical (trace elements) studies are now necessary to clarify the timing of these breccias and the nature and the connection of the original fluids with current geothermal fluids

scholarly journals The Collaborative Discussion Model: Developing Writing Skills through Prewriting Discussion

2021 ◽  
pp. 158-172
Author(s):  
Tatiana Pospelova
Keyword(s):  
Academic Writing ◽  
Quantitative Methods ◽  
Positive Impact ◽  
Explicit Instruction ◽  
Writing Skills ◽  
Practical Consideration ◽  
L2 Proficiency ◽  
Lexical Resource ◽  
Collaborative Discussion ◽  
Different Levels

This study aims to investigate the effect of peer-assisted prewriting discussion on second language (L2) academic writing and its benefits for students with different proficiency levels. While there is a significant body of research exploring the positive impact of collaboration on L2 writers' written performance and the ways it could be organised, there is little practical consideration on how to formulate explicit instruction. The rationale for this research lies in designing and arranging explicit instruction that could lead to L2 learners producing a higher quality writing output. Based on both qualitative and quantitative methods, and drawn on students’ written texts and data analysis, the current study was conducted to devise and test a proposed model, which the author will term the ‘collaborative discussion model’ (the CDM). The control and experimental groups of Russian EFL students (n = 48) were engaged in written assignments after naturally occurring discussions and then the latter group was involved in an instructor-led discussion. The practice writing tasks were rated with the analytic rubric used in IELTS, assessing task response, coherence and cohesion, lexical resource, and grammatical range. The findings suggest that collaborative prewriting tasks, accomplished in the experimental group of students with different levels of L2 proficiency, may encourage students to engage more in reflection about the content and language of the text. As the texts produced after introducing the CDM were scored higher, especially on the criteria of task response and lexical resource, it is suggested that scaffolding prewriting discussions can potentially augment the writing skills of learners and the CDM can be used as a complementary activity to address the challenges associated with academic writing. The results of the questionnaire can imply that there are benefits of explicit instruction for students with different levels of L2 proficiency, although in nuanced ways and different degrees.

Changes in Geothermal Activity at Bárdarbunga, Iceland, Following the 2014–2015 Caldera Collapse, Investigated Using Geothermal System Modeling

2019 ◽  
Vol 124 (8) ◽  
pp. 8187-8204 ◽  
Author(s):  
Hannah I. Reynolds ◽  
Magnús T. Gudmundsson ◽  
Thórdís Högnadóttir ◽  
Gudni Axelsson
Keyword(s):  
System Modeling ◽  
Caldera Collapse ◽  
Geothermal System ◽  
Geothermal Activity

scholarly journals VALUE ENGINEERING DAN STRATEGI BISNIS PADA PT ANGKASA PURA II

2017 ◽  
Vol 3 (2) ◽  
pp. 245
Author(s):  
Slamet Priyanto ◽  
Hadi Suharno ◽  
Haryono Haryono
Keyword(s):  
Implementation Strategy ◽  
Quantitative Methods ◽  
Value Engineering ◽  
Human Engineering ◽  
Structured Interviews ◽  
Qualitative And Quantitative ◽  
Qualitative And Quantitative Methods ◽  
Operation Process ◽  
World Class ◽  
Level 1

This research aims to determine the business model that is currently running, knowing Maps Strategy and Operation Process Map companies towards World Class Airport Company, then analyzing step Value Engineering up to level 1 (one) that needs to be done to improve the strength of the company. The method used is descriptive qualitative and quantitative methods are combined with observations and structured interviews so as to portray phenomena that there is both natural and human engineering. The implementation strategy of Value Engineering on this research, expected changes in the strength of the company to be much better in the period 2015-2016 exceeded even the expectations that have been established in 2012-2016 RJPP PT Angkasa Pura II (Persero).

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