A Review on the Beneficiation of Ultra-Lean Iron Ores

2013 ◽  
Vol 753-755 ◽  
pp. 44-47
Author(s):  
Zhuo Yue Lan ◽  
Xiu Juan Li ◽  
Si Qing Liu ◽  
Wan Ping Wang ◽  
Min Zhang
Keyword(s):  
Low Grade ◽  
Iron Ores ◽  
Chinese Market ◽  
Technical Problems ◽  
Comprehensive Utilization ◽  
Efficient Separation ◽  
The Core ◽  
The Past ◽  
Major Progress ◽  
Ore Grade

Nowadays, the demand of Chinese market for iron ores exceeds the supply. However, more than 90% the iron ores in China is of low grade with 30%Fe in average; the sub-marginal and ultra lean ores account for 40% of the total. Therefore, research on the beneficiation of above ores is extremely significant. This article reviews the present situation and technical problems on utilization of the lean iron ores in China over the past years. Moreover, the major progress in the technology and equipment is summarized. Efficient separation as well as energy saving is still the core in utilization of the ore. Emphasis is placed on different processes developed in upgrading the ore grade to plants and realizing the comprehensive utilization problems.

scholarly journals The many roads to psychosis: recent advances in understanding risk and mechanisms

F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 1883 ◽  
Author(s):  
Carrie E. Bearden ◽  
Jennifer K. Forsyth
Keyword(s):  
Risk Factors ◽  
Mental Illness ◽  
Genetic Architecture ◽  
Biological Processes ◽  
The Core ◽  
The Past ◽  
Recent Advances ◽  
New Findings ◽  
The Many ◽  
Major Progress

Schizophrenia is a chronic and severe mental illness which frequently leads to substantial lifelong disability. The past five years have seen major progress in our understanding of the complex genetic architecture of this disorder. Two major barriers to understanding the core biological processes that underlie schizophrenia and developing better interventions are (1) the absence of etiologically defined biomarkers and (2) the clinical and genetic heterogeneity of the disorder. Here, we review recent advances that have led to changes in our understanding of risk factors and mechanisms involved in the development of schizophrenia. In particular, mechanistic and clinically oriented approaches have now converged on a focus on disruptions in early neurodevelopment and synaptic plasticity as being critical for both understanding trajectories and intervening to change them. Translating these new findings into treatments that substantively change the lives of patients is the next major challenge for the field.

Soziale Disziplinierung im flexiblen Kapitalismus

2004 ◽  
Vol 34 (136) ◽  
pp. 339-356
Author(s):  
Tobias Wölfle ◽  
Oliver Schöller
Keyword(s):  
Social Welfare ◽  
Second Step ◽  
Social Rights ◽  
Federal Law ◽  
Capitalist Development ◽  
The Core ◽  
The Past ◽  
The Impact ◽  
Municipal Level

Under the term “Hilfe zur Arbeit” (aid for work) the federal law of social welfare subsumes all kinds of labour disciplining instruments. First, the paper shows the historical connection of welfare and labour disciplining mechanisms in the context of different periods within capitalist development. In a second step, against the background of historical experiences, we will analyse the trends of “Hilfe zur Arbeit” during the past two decades. It will be shown that by the rise of unemployment, the impact of labour disciplining aspects of “Hilfe zur Arbeit” has increased both on the federal and on the municipal level. For this reason the leverage of the liberal paradigm would take place even in the core of social rights.

Adaptations of Time Travel Narratives in Japanese Multimedia: Nurturing Eudaimonia across Time and Space

2014 ◽  
Vol 7 (2) ◽  
pp. 136-151 ◽  
Author(s):  
Sung-Ae Lee
Keyword(s):  
Travel Narratives ◽  
Time Travel ◽  
Cultural Knowledge ◽  
Human Beings ◽  
The Core ◽  
The Past ◽  
Life Styles ◽  
Concern For Others ◽  
The Future ◽  
Live Action

To displace a character in time is to depict a character who becomes acutely conscious of his or her status as other, as she or he strives to comprehend and interact with a culture whose mentality is both familiar and different in obvious and subtle ways. Two main types of time travel pose a philosophical distinction between visiting the past with knowledge of the future and trying to inhabit the future with past cultural knowledge, but in either case the unpredictable impact a time traveller may have on another society is always a prominent theme. At the core of Japanese time travel narratives is a contrast between self-interested and eudaimonic life styles as these are reflected by the time traveller's activities. Eudaimonia is a ‘flourishing life’, a life focused on what is valuable for human beings and the grounding of that value in altruistic concern for others. In a study of multimodal narratives belonging to two sets – adaptations of Tsutsui Yasutaka's young adult novella The Girl Who Leapt Through Time and Yamazaki Mari's manga series Thermae Romae – this article examines how time travel narratives in anime and live action film affirm that eudaimonic living is always a core value to be nurtured.

PRACTICAL BASE OF FORMULATING RETRAINING PROGRAMS ON ETHNIC MINORITY AFFAIRS KNOWLEDGE FOR CADRES, CIVIL SERVANTS UP TO 2030

2018 ◽  
Author(s):  
Nguyen Van Dung ◽  
Giang Khac Binh
Keyword(s):  
Ethnic Minority ◽  
Training Program ◽  
Political System ◽  
Prime Minister ◽  
Training Programs ◽  
Civil Servants ◽  
The Political ◽  
Target Groups ◽  
The Core ◽  
The Past

As developing programs is the core in fostering knowledge on ethnic work for cadres and civil servants under Decision No. 402/QD-TTg dated 14/3/2016 of the Prime Minister, it is urgent to build training program on ethnic minority affairs for 04 target groups in the political system from central to local by 2020 with a vision to 2030. The article highlighted basic issues of practical basis to design training program of ethnic minority affairs in the past years; suggested solutions to build the training programs in integration and globalization period.

The Nature of Degrowth: Theorising the Core of Nature for the Degrowth Movement

2020 ◽  
Author(s):  
Pasi Heikkurinen
Keyword(s):  
Human Nature ◽  
Culturally Sensitive ◽  
Theory And Practice ◽  
The Core ◽  
The Past ◽  
The Future ◽  
Radical Reduction ◽  
Nature Experience ◽  
Matter Energy

This article investigates human–nature relations in the light of the recent call for degrowth, a radical reduction of matter–energy throughput in over-producing and over-consuming cultures. It outlines a culturally sensitive response to a (conceived) paradox where humans embedded in nature experience alienation and estrangement from it. The article finds that if nature has a core, then the experienced distance makes sense. To describe the core of nature, three temporal lenses are employed: the core of nature as ‘the past’, ‘the future’, and ‘the present’. It is proposed that while the degrowth movement should be inclusive of temporal perspectives, the lens of the present should be emphasised to balance out the prevailing romanticism and futurism in the theory and practice of degrowth.

Acid ceramidase, a double-edged sword in cancer aggression: A minireview

2020 ◽  
Vol 20 ◽  
Author(s):  
Helen Shiphrah Vethakanraj ◽  
Niveditha Chandrasekaran ◽  
Ashok Kumar Sekar
Keyword(s):  
Cell Fate ◽  
Cancer Progression ◽  
Potential Role ◽  
Tumour Progression ◽  
Acid Ceramidase ◽  
The Core ◽  
The Past ◽  
Sphingosine 1 Phosphate ◽  
Key Enzyme

: Acid ceramidase (AC), the key enzyme of the ceramide metabolic pathway hydrolyzes pro-apoptotic ceramide to sphingosine, which by the action of sphingosine-1-kinase is metabolized to mitogenic sphingosine-1-phosphate. The intracellular level of AC determines ceramide/sphingosine-1-phosphate rheostat which in turn decides the cell fate. The upregulated AC expression during cancerous condition acts as a “double-edged sword” by converting pro-apoptotic ceramide to anti-apoptotic sphingosine-1-phosphate, wherein on one end, the level of ceramide is decreased and on the other end, the level of sphingosine-1-phosphate is increased, thus altogether aggravating the cancer progression. In addition, cancer cells with upregulated AC expression exhibited increased cell proliferation, metastasis, chemoresistance, radioresistance and numerous strategies were developed in the past to effectively target the enzyme. Gene silencing and pharmacological inhibition of AC sensitized the resistant cells to chemo/radiotherapy thereby promoting cell death. The core objective of this review is to explore AC mediated tumour progression and the potential role of AC inhibitors in various cancer cell lines/models.

The ICRC Library goes digital

2020 ◽  
pp. 1-2
Keyword(s):  
International Committee ◽  
Red Cross ◽  
International Humanitarian Law ◽  
Humanitarian Law ◽  
Reference Library ◽  
Parallel Development ◽  
Humanitarian Action ◽  
The Core ◽  
The Past

The ICRC Library is home to unique collections retracing the parallel development of humanitarian action and law during the past 150+ years. With the core of these collections now digitized, this reference library on international humanitarian law (IHL) and the International Committee of the Red Cross (ICRC) is a resource available to all, anytime, anywhere.

Carbon Doped Iron Ore Using Palm Kernel Shell

2013 ◽  
Vol 701 ◽  
pp. 28-31 ◽  
Author(s):  
Rusila Zamani Abd Rashid ◽  
Hadi Purwanto ◽  
Hamzah Mohd Salleh ◽  
Mohd Hanafi Ani ◽  
Nurul Azhani Yunus ◽  
...  
Keyword(s):  
Iron Ore ◽  
Palm Kernel ◽  
Reduction Process ◽  
Attractive Alternative ◽  
Low Grade ◽  
Iron Ores ◽  
Solid Carbon ◽  
Green Composite ◽  
Biomass Waste ◽  
Palm Kernel Shell

This paper pertains to the reduction process of local low grade iron ore using palm kernel shell (PKS). It is well known that low grade iron ores contain high amount of gangue minerals and combined water. Biomass waste (aka agro-residues) from the palm oil industry is an attractive alternative fuel to replace coal as the source of energy in mineral processing, including for the treatment and processing of low grade iron ores. Both iron ore and PKS were mixed with minute addition of distilled water and then fabricated with average spherical diameter of 10-12mm. The green composite pellets were subjected to reduction test using an electric tube furnace. The rate of reduction increased as temperature increases up to 900 °C. The Fe content in the original ore increased almost 12% when 40 mass% of PKS was used. The reduction of 60:40 mass ratios of iron ore to PKS composite pellet produced almost 11.97 mass% of solid carbon which was dispersed uniformly on the surface of iron oxide. The aim of this work is to study carbon deposition of PKS in iron ore through reduction process. Utilization of carbon deposited in low grade iron ore is an interesting method for iron making process as this solid carbon can act as energy source in the reduction process.

scholarly journals Chasing the green buck? Environmental activism in post-communist Baltic States

2016 ◽  
Vol 49 (3) ◽  
pp. 243-254 ◽  
Author(s):  
Timofey Agarin ◽  
Miķelis Grīviņš
Keyword(s):  
Political Process ◽  
Past Research ◽  
The Political ◽  
Economic Interests ◽  
Economic Resource ◽  
International Networks ◽  
The Core ◽  
The Past ◽  
National Environment ◽  
Collapse Of Communism

The paper investigates the dynamics and volution of issues on the agenda of Baltic environmental non-governmental organisations (NGOs) since the collapse of communism. The past research on Baltic environment activism suggests that these enjoy high visibility because they tapped the core societal views of natural environment as a crucial asset of a nation. As we demonstrate in this paper, the changes in agendas of Baltic environmental non-governmental organisations (ENGOs) make clear that the rhetorical toolbox of ‘national environment’ is often used to mainly achieve greater financial gains for individual members, rather than for society at large. We illustrate how the dearth of economic opportunities for domestic public has impacted perceptions of ‘nature’ advocated by the environmental activists, focussing specifically on national perceptions of ownership and the resulting actions appropriating ‘nature’ as a source for economic development, only tangentially attaining environmental outcomes on the way. The vision that the ‘environment’ is an economic resource allowed ENGO activists to cooperate with the domestic policymaking, while tapping international networks and donors for funding. Throughout the past decades they worked to secure their own and their members’ particularistic economic interests and, as we demonstrate, remained disengaged from the political process and failed to develop broader reproach with publics.

scholarly journals Phenotyping plants: genes, phenes and machines

2012 ◽  
Vol 39 (11) ◽  
pp. 813 ◽  
Author(s):  
Roland Pieruschka ◽  
Hendrik Poorter
Keyword(s):  
Structural Information ◽  
Plant Phenotyping ◽  
Phenotypic Traits ◽  
Special Issue ◽  
Non Invasive ◽  
The Core ◽  
The Relationship ◽  
Non Destructive ◽  
Major Progress ◽  
Meaningful Data

No matter how fascinating the discoveries in the field of molecular biology are, in the end it is the phenotype that matters. In this paper we pay attention to various aspects of plant phenotyping. The challenges to unravel the relationship between genotype and phenotype are discussed, as well as the case where ‘plants do not have a phenotype’. More emphasis has to be placed on automation to match the increased output in the molecular sciences with analysis of relevant traits under laboratory, greenhouse and field conditions. Currently, non-destructive measurements with cameras are becoming widely used to assess plant structural properties, but a wider range of non-invasive approaches and evaluation tools has to be developed to combine physiologically meaningful data with structural information of plants. Another field requiring major progress is the handling and processing of data. A better e-infrastructure will enable easier establishment of links between phenotypic traits and genetic data. In the final part of this paper we briefly introduce the range of contributions that form the core of a special issue of this journal on plant phenotyping.

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