scholarly journals Prediction of Postflotation Tailings Behavior in a Large Storage Facility

Minerals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 362
Author(s):  
Magdalena Wróżyńska
Keyword(s):  
Large Scale ◽  
Mine Waste ◽  
Copper Production ◽  
Natural Soil ◽  
Pilot Studies ◽  
Storage Technology ◽  
The Future ◽  
Soil Settlement ◽  
The Difference ◽  
The Impact

Extracting and copper production on a large scale generates large volumes of postflotation mine tailings. The scale of operation and development of tailings storage facilities (TSFs) forces the use of innovative solutions enabling safe storage now and in the future. Any changes to the operation require multi-directional monitoring of the impact of these changes on storage safety. The ongoing exploitation will be ensured by expansion of the TSF and a change in tailings storage technology. This approach will preclude the need for changes to the new location, such as changes of land use, and will minimise the volume of mine waste. The paper presents the results of pilot studies carried out to implement the change in postflotation tailings storage technology at Żelazny Most TSF (Poland) in the future. The aim of the paper was settlements prediction of tailings and comparison of deformations with observed settlements. Settlements prediction of tailings was made on the basis of the results of the DMT (Marchetti Dilatometer Test), recommended for the prediction of natural soil settlement. Depending on the analysed zone of the TSF, settlements ranged from a few centimetres to over 1.5 m. Despite the difference shown, the results of DMT and geodetic measurements indicate a convergent trend of settlement.

scholarly journals Investigating the properties of a galaxy group at z = 0.6

2020 ◽  
Vol 15 (S359) ◽  
pp. 188-189
Author(s):  
Daniela Hiromi Okido ◽  
Cristina Furlanetto ◽  
Marina Trevisan ◽  
Mônica Tergolina
Keyword(s):  
Large Scale ◽  
The Other ◽  
Numerical Density ◽  
Spectroscopy Data ◽  
Stellar Kinematics ◽  
Galaxy Groups ◽  
The Galaxy ◽  
The Difference ◽  
The Impact ◽  
The Universe

AbstractGalaxy groups offer an important perspective on how the large-scale structure of the Universe has formed and evolved, being great laboratories to study the impact of the environment on the evolution of galaxies. We aim to investigate the properties of a galaxy group that is gravitationally lensing HELMS18, a submillimeter galaxy at z = 2.39. We obtained multi-object spectroscopy data using Gemini-GMOS to investigate the stellar kinematics of the central galaxies, determine its members and obtain the mass, radius and the numerical density profile of this group. Our final goal is to build a complete description of this galaxy group. In this work we present an analysis of its two central galaxies: one is an active galaxy with z = 0.59852 ± 0.00007, while the other is a passive galaxy with z = 0.6027 ± 0.0002. Furthermore, the difference between the redshifts obtained using emission and absorption lines indicates an outflow of gas with velocity v = 278.0 ± 34.3 km/s relative to the galaxy.

scholarly journals China’s Investments in Germany and the Impact of the COVID-19 Pandemic

2021 ◽  
Vol 56 (2) ◽  
pp. 113-119
Author(s):  
Xinming Xia ◽  
Wan-Hsin Liu
Keyword(s):  
Large Scale ◽  
Know How ◽  
Advanced Technologies ◽  
The Future ◽  
Potential Impact ◽  
Chinese State ◽  
The Impact ◽  
Gain Access ◽  
Over Time

AbstractThis paper analyses how China’s investments in Germany have developed over time and the potential impact of the COVID-19 pandemic in this regard, based on four different datasets, including our own survey in mid-2020. Our analysis shows that Germany is currently one of the most attractive investment destinations for Chinese investors. Chinese state-owned enterprises have played an important role as investors in Germany — particularly in large-scale projects. The COVID-19 pandemic has had some negative but rather temporary effects on Chinese investments in Germany. Germany is expected to stay attractive to Chinese investors who seek to gain access to advanced technologies and know-how in the future.

scholarly journals The Impact of China’s Low-Carbon Initiative on the Location Expansion of International SPA Enterprises

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Zhaoyang Zhao ◽  
Chong Ye
Keyword(s):  
Economic Development ◽  
Product Life Cycle ◽  
Large Scale ◽  
High Energy ◽  
Inhibitory Effect ◽  
Low Carbon ◽  
Suppression Effect ◽  
Carbon Neutrality ◽  
The Difference ◽  
The Impact

“Fast fashion” represents a short product life cycle, and international SPA enterprises are therefore criticised as representatives of high energy consumption, pollution, and emissions, which is contrary to China’s goal of achieving carbon neutrality. In the context of China’s shift to a low-carbon economic development model, how should SPA enterprises breakthrough in the face of China’s large-scale market advantage and domestic demand potential? Based on the statistics of 277 prefecture-level cities from 2010 to 2018, this article selects 5 leading international SPA enterprises and uses the difference-in-differences (DID) method to explore the impact of low-carbon initiative on the location expansion of international SPA enterprises. The results suggest that the quantity of location expansions of SPA enterprises in the pilot cities is significantly lower by approximately 0.418 units compared with the nonpilot cities, implying that the low-carbon initiative has a significant inhibitory effect on the location expansion of SPA enterprises. After a series of robustness tests, the conclusion is valid. The results of the heterogeneity test suggest that the suppression effect is mainly found in the subsample of central cities and cities with medium and low levels of economic development. This article proposes that SPA enterprises should reduce their carbon emissions and gradually explore a green and sustainable development path.

Will Different Scales Impact on Design Collaboration in 3D Virtual Environments?

2012 ◽  
pp. 185-198
Author(s):  
Jerry Jen-Hung Tsai ◽  
Jeff WT Kan ◽  
Xiangyu Wang ◽  
Yingsiu Huang
Keyword(s):  
Virtual Environments ◽  
Large Scale ◽  
Protocol Analysis ◽  
Small Scale ◽  
Design Collaboration ◽  
The Difference ◽  
Communication Control ◽  
The Impact ◽  
3D Virtual Environments ◽  
Electronic Circuit Design

This chapter presents a study on the impact of design scales on collaborations in 3D virtual environments. Different domains require designers to work on different scales; for instance, urban design and electronic circuit design operate at very different scales. However, the understanding of the effects of scales upon collaboration in virtual environment is limited. In this chapter, the authors propose to use protocol analysis method to examine the differences between two design collaboration projects in virtual environments: one large scale, and another small scale within a similar domain. It shows that the difference in scale impacted more on communication control and social communication.

Psychiatric epidemiology: Looking to the future

2020 ◽  
pp. 425-432
Author(s):  
Jayati Das-Munshi ◽  
Tamsin Ford ◽  
Matthew Hotopf ◽  
Martin Prince ◽  
Robert Stewart
Keyword(s):  
Science Communication ◽  
Large Scale ◽  
New Technologies ◽  
Open Science ◽  
Psychiatric Epidemiology ◽  
Biological Data ◽  
Gps Tracking ◽  
The Future ◽  
The Impact

In this final chapter to the second edition of Practical Psychiatric Epidemiology, developments in psychiatric epidemiology since the first edition are summarized and the editors offer a view on where the future may lie. The themes summarized in this chapter include those related to large-scale datasets or ‘big data’, new technologies and science communication (including data generated through GPS tracking systems and the impact of social media), expanding biological data and biobanks, as well as the impact of globalization, migration, and culture on understanding psychiatric epidemiological principles. The last part of this chapter raises the important issue of open science initiatives. The chapter concludes with a brief discussion on the constancy and ongoing evolution of psychiatric epidemiology.

Multi-omics investigations within the Phylum Mollusca, Class Gastropoda: from ecological application to breakthrough phylogenomic studies

2019 ◽  
Author(s):  
Anne H Klein ◽  
Kaylene R Ballard ◽  
Kenneth B Storey ◽  
Cherie A Motti ◽  
Min Zhao ◽  
...  
Keyword(s):  
Large Scale ◽  
Environmental Stressors ◽  
Data Organization ◽  
Large Scale Data ◽  
Huge Data ◽  
The Future ◽  
Ecological Application ◽  
The Impact ◽  
Generation Sequencing ◽  
Scale Data

Abstract Gastropods are the largest and most diverse class of mollusc and include species that are well studied within the areas of taxonomy, aquaculture, biomineralization, ecology, microbiome and health. Gastropod research has been expanding since the mid-2000s, largely due to large-scale data integration from next-generation sequencing and mass spectrometry in which transcripts, proteins and metabolites can be readily explored systematically. Correspondingly, the huge data added a great deal of complexity for data organization, visualization and interpretation. Here, we reviewed the recent advances involving gastropod omics (‘gastropodomics’) research from hundreds of publications and online genomics databases. By summarizing the current publicly available data, we present an insight for the design of useful data integrating tools and strategies for comparative omics studies in the future. Additionally, we discuss the future of omics applications in aquaculture, natural pharmaceutical biodiscovery and pest management, as well as to monitor the impact of environmental stressors.

scholarly journals Mass Production of the Black Soldier Fly, Hermetia illucens (L.), (Diptera: Stratiomyidae) Reared on Three Manure Types

Animals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1243 ◽  
Author(s):  
Chelsea D. Miranda ◽  
Jonathan A. Cammack ◽  
Jeffery K. Tomberlin
Keyword(s):  
Mass Production ◽  
Large Scale ◽  
Control Diet ◽  
Swine Manure ◽  
Dairy Manure ◽  
Small Scale ◽  
Black Soldier Fly ◽  
Pilot Studies ◽  
Alfalfa Meal ◽  
The Impact

Recent interest in the mass production of black soldier fly (BSF) larvae has resulted in many studies being generated. However, a majority of the studies are benchtop, or small-scale, experiments. Results generated from such studies may not translate to large-scale/industrial production. The current study was conducted at a conventional large-scale (10,000 larvae/treatment fed seven kg) to determine the impact on selected life-history traits when BSF were fed seven kg of manure (swine, dairy, or poultry) or a control diet (Gainesville diet: 50% wheat bran, 30% alfalfa meal, and 20% corn). Results showed larvae fed dairy manure took one to two days longer to develop to prepupation, with lower survivorship (45%) compared to those fed poultry or swine manure (>70%). Furthermore, the maximum larval weight was reached on day six for those fed swine manure, while other treatments achieved the maximum weight on day seven. However, larvae fed swine manure averaged 150 mg, while those fed the other diets ranged between 175 and 200 mg. Data from this study may be valuable for the industrialization of BSF. Companies using a scale varying from previously published work, including this study, should conduct pilot studies to optimize their system prior to implementation.

scholarly journals The Impact of Restrictive Measures on the Price Discovery Function of Stock Index Futures – Evidence From CSI 500 Stock Index Futures

2018 ◽  
Vol 9 (4) ◽  
pp. 117
Author(s):  
Maoguo Wu ◽  
Zhehao Zhu
Keyword(s):  
Price Discovery ◽  
Spot Market ◽  
Stock Index ◽  
Stock Index Futures ◽  
Future Market ◽  
Index Futures ◽  
The Future ◽  
The Difference ◽  
Restrictive Measures ◽  
The Impact

Restrictive measures implemented by governments have a great impact on the price discovery function of stock index futures. This study compares the price discovery function of CSI 500 stock index futures and CSI 500 stock index before and after the implementation of restrictive measures based on the reaction speed to new information, the price ratio of new information and the price contribution of both future market and spot market. It also analyzes the difference between the price discovery function of the future market and that of the spot market and thus proposes policy implications accordingly.Utilizing data of CSI 500 stock index futures in the period of the stock market crash, this study compares the price discovery function before and after the implementation of restrictive measures. By means of the VECM model and common factor analysis, it further investigates the difference in the price contribution of the two markets. Contributing to existing literature on the relationship between the future market and the spot market, this study explores the change in the price contribution of the two markets and therein studies the impact of restrictive measures on the price discovery function. Empirical evidence finds that before the implementation of restrictive measures, the price discovery function worked more efficiently, while, however, after the implementation of restrictive measures, the price discovery function did not work. Hence, stock index futures do assist in the price discovery of the spot market. In some special time periods, however, due to the impact of restrictive policies, the price contribution of the spot market exceeded that of the future market, implying that the price discovery function of the CSI 500 stock index future market is unstable.

scholarly journals The impact of ship emissions on air quality and human health in the Gothenburg area – Part II: Scenarios for 2040

2020 ◽  
Vol 20 (17) ◽  
pp. 10667-10686
Author(s):  
Martin O. P. Ramacher ◽  
Lin Tang ◽  
Jana Moldanová ◽  
Volker Matthias ◽  
Matthias Karl ◽  
...  
Keyword(s):  
Air Quality ◽  
Health Effects ◽  
Urban Areas ◽  
Large Scale ◽  
Health Effect ◽  
Population Exposure ◽  
Future Scenarios ◽  
Port Area ◽  
The Future ◽  
The Impact

Abstract. Shipping is an important source of air pollutants, from the global to the local scale. Ships emit substantial amounts of sulfur dioxides, nitrogen dioxides, and particulate matter in the vicinity of coasts, threatening the health of the coastal population, especially in harbour cities. Reductions in emissions due to shipping have been targeted by several regulations. Nevertheless, effects of these regulations come into force with temporal delays, global ship traffic is expected to grow in the future, and other land-based anthropogenic emissions might decrease. Thus, it is necessary to investigate combined impacts to identify the impact of shipping activities on air quality, population exposure, and health effects in the future. We investigated the future effect of shipping emissions on air quality and related health effects considering different scenarios of the development of shipping under current regional trends of economic growth and already decided regulations in the Gothenburg urban area in 2040. Additionally, we investigated the impact of a large-scale implementation of shore electricity in the Port of Gothenburg. For this purpose, we established a one-way nested chemistry transport modelling (CTM) system from the global to the urban scale, to calculate pollutant concentrations, population-weighted concentrations, and health effects related to NO2, PM2.5, and O3. The simulated concentrations of NO2 and PM2.5 in future scenarios for the year 2040 are in general very low with up to 4 ppb for NO2 and up to 3.5 µg m−3 PM2.5 in the urban areas which are not close to the port area. From 2012 the simulated overall exposure to PM2.5 decreased by approximately 30 % in simulated future scenarios; for NO2 the decrease was over 60 %. The simulated concentrations of O3 increased from the year 2012 to 2040 by about 20 %. In general, the contributions of local shipping emissions in 2040 focus on the harbour area but to some extent also influence the rest of the city domain. The simulated impact of onshore electricity implementation for shipping in 2040 shows reductions for NO2 in the port of up to 30 %, while increasing O3 of up to 3 %. Implementation of onshore electricity for ships at berth leads to additional local reduction potentials of up to 3 % for PM2.5 and 12 % for SO2 in the port area. All future scenarios show substantial decreases in population-weighted exposure and health-effect impacts.

scholarly journals PERGESERAN NEGARA HUKUM KE ‘NEGARA HIMBAUAN’: MENAKAR DAMPAK REGULASI PENANGANAN COVID-19 TERHADAP PEREKONOMIAN DAN KEUANGAN INDONESIA

2020 ◽  
Vol 3 (2) ◽  
pp. 214-228
Author(s):  
Yafet Y W Rissy
Keyword(s):  
Law Enforcement ◽  
Rule Of Law ◽  
Large Scale ◽  
Financial Sector ◽  
The Other ◽  
Legal Certainty ◽  
The Future ◽  
Sector Analysis ◽  
Legal Uncertainty ◽  
The Impact

AbstractThis article discusses the shifting phenomenon from rule of law to ‘rule of persuasion’ by analysing regulations concerning Covid-19 mitigation through large-scale social restrictions (PSBB) and their impact on Indonesian economy and financial sector. Analysis of PSBB regulations shows that the regulations do not have criminal and law enforcement provisions that could lead legal uncertainty. PSBB regulations are simply a persuasion model. This has led to the shifting from rule of law to ‘law rule of persuasion’. As a result, on one hand, law enforcement related to PSBB regulations would not be effective and could make the Covid-19 pandemic prolonged, and on the other hand, legal uncertainty itself as well as the Covid-19 pandemic would have serious implications for Indonesian economy and financial sector. It is recommended that in the future, any regulations, especially at the level of statutes (acts), should seriously consider the establishment of legal certainty through criminal provisions and law enforcement and anticipate properly the impact such regulations and Covid-19 on Indonesian economy and financial sector.Keywords: legal uncertainty; rule of law; ‘rule of persuasion’AbstrakArtikel ini membahas fenomena pergeseran negara ke ‘negara himbauan’ dengan melakukan analisis terhadap regulasi terkait penangangan Covid-19 melalui pembatasan sosial berskala besar (PSBB) dan dampaknya terhadap keuangan dan perekonomian Indonesia. Analisis terhadap regulasi PSBB menunjukan bahwa regulasi tidak memiliki ketentuan pidana dan aspek penegakan hukumnya yang dapat menimbulkan ketidakpastian hukum. Regulasi PSBB sekedar merupakan model himbauan yang telah menegaskan adanya fenomena pergeseran dari negara hukum ke ‘negara himbauan’. Akibatnya, di satu sisi, penegakan hukum terhadap regulasi PSBB tidak akan berjalan efektif dan bisa membuat pandemi Covid-19 berkepanjangan, dan di sisi lainnya, ketidakpastian hukum sebagaimana juga pandemic Covid-19 akan memiliki implikasi serius bagi perekonomian dan keuangan Indonesia. Direkomendasikan agar kedepannya, regulasi apapun, utamanya di tingkat undang-undang, harus secara sungguh memperhatikan aspek kepastian hukum melalui pengaturan dalam ketentuan pidana dan penegakan hukumnya dan mengantisipasi secara tepat dampak regulasi dan Covid-19 bagi perekonomian dan keuangan Indonesia. Kata kunci: ketidakpastian hukum; negara hukum; ‘negara himbauan’ 

Sign in / Sign up

Export Citation Format

Share Document