PROGRAM PENDAMPINGAN PEREMPUAN BAGI PEGIAT INDUSTRI RUMAHAN

Muhammad Kamaluddin

doi:10.32534/jsfk.v12i02.570

PROGRAM PENDAMPINGAN PEREMPUAN BAGI PEGIAT INDUSTRI RUMAHAN

SOSFILKOM : Jurnal Sosial, Filsafat dan Komunikasi ◽

10.32534/jsfk.v12i02.570 ◽

2019 ◽

Vol 12 (02) ◽

pp. 29-35

Author(s):

Muhammad Kamaluddin

Keyword(s):

Raw Materials ◽

Mentoring Program ◽

Economic Support ◽

Business Sectors

There are times when women become the economic support of their families. Primarily infinancial matters, their dependence on men has the potential to be counterproductive to thespirit of equality. This paper is a study of the Mentoring Program for Women KPPPA-RIHome Industry Activists in Cirebon Regency. Through questionnaire-based mapping, 100women entrepreneurs from two villages (Grogol and Mertasinga) in GunungjatiSubdistrict were categorized according to the business sectors they engaged in. Importantaspects such as capital, labor, raw materials, tools, packaging, selling prices, marketingand bookkeeping have become the focus of attention.Keywords: Home Industry, Women, Mentoring Program

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Recovery of metals from mining tailings by eco-friendly hydrometallurgical processes

10.5194/egusphere-egu2020-19906 ◽

2020 ◽

Author(s):

Gabriel Gascó ◽

Ignacio Sánchez ◽

José Manuel Fidalgo ◽

Antonio Saa ◽

Jorge Paz-Ferreiro ◽

...

Keyword(s):

Raw Materials ◽

Metal Extraction ◽

Low Grade ◽

Sulphide Minerals ◽

Mining Areas ◽

Mining Tailings ◽

Global Trend ◽

Economic Support ◽

Alternative Materials ◽

Carbon Catalysts

<p>Metal&#180;s demand and price are increasing due to the global trend towards urbanisation and industrialisation. Metals and raw materials are crucial to Europe&#8217;s society, economy and industry. However, some of them show a high-supply risk due to high dependence of imports, being necessary to find alternative materials or new sources for their recovery. Additionally, the overall global reserves of high-grade ores are close to depletion. In this context, low-grade, complex ores like sulphide minerals and old waste deposits related to past mining activities have received much more attention in recent years as new metal sources. The main objective of the present work is the recovery of metals from mining tailings, mainly post-flotation wastes, by eco-friendly hydrometallurgical processes. The presence of low-grade minerals hinders metal extraction by traditional pyrometallurgical processes. Spanish mining tailings show different compositions depending on their origin. However, complex ores like sulphide minerals (pyrite; sphalerite; chalcopyrite; arsenopyrite and other polymetallic sulphides) are generally present. It is known that metals in the form of complex sulphide precludes their chemical leaching. &#160;For this reason, some carbon materials have been studied during last years as efficient catalysts for the leaching of metals from complex sulphides. The present work will be performed during the project RTI2018-096695-B-C31 (Ministerio de Econom&#237;a y Competitividad). Different mining taillings will be selected from Spanish mining areas and mix with corresponding carbon catalysts. Leaching experiments will be performed during 96 hours at 60 and 90&#186;C under continuous agitation. The results obtained in the project will contribute to better understanding of the influence of catalysts in the leaching of metals from mineral sulphides.&#160;<br>Authors wish to thank Spanish Ministerio de Econom&#237;a y Competitividad for economic support (RTI2018-096695-B-C31)</p>

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Economics of mining

10.12737/1741-8 ◽

2018 ◽

Author(s):

Зерема Хашева ◽

Zerema Hasheva ◽

Владимир Голик ◽

Vladimir Golik

Keyword(s):

Economic Efficiency ◽

Raw Materials ◽

Mining Operations ◽

University Professors ◽

Mineral Raw Materials ◽

Technological Processes ◽

Economic Support ◽

Wide Range ◽

Production Resources

In the textbook sets out the basic Economics of mining enterprises. Discusses the economic efficiency of production resources, innovative activities, the characteristic technologies of development of deposits of mineral raw materials, systematized the main directions of economic support of the processes of mining, described the latest technological processes in mining operations. The manual is intended for students and University professors, managers of industries, mining engineers, and a wide range of readers.

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The Growth of Entrepreneurship in India c. 1850–1950 with Some Latin American Comparisons

Itinerario ◽

10.1017/s0165115300004320 ◽

1989 ◽

Vol 13 (2) ◽

pp. 67-86

Author(s):

Claude Markovits

Keyword(s):

Latin American ◽

Raw Materials ◽

Indian Subcontinent ◽

World Market ◽

Industrial Growth ◽

The Public ◽

The World ◽

Private Business Sector ◽

Business Sectors ◽

Limited Process

Among Third World countries, India stands out as having one of the most developed ‘big business sectors’, with a recent tendency by some firms to go multinational. This notwithstanding the fact that the public sector plays a major role in the Indian economy. Although the origins of some of India's business groups go back to pre-colonial times, most of them trace their beginnings to the 1850–1950 period, the ‘second colonial century’, during which India underwent a limited process of industrial growth as well as became a major exporter of some agricultural commodities to the world market (tea, jute, cotton, oilseeds, and, prior to 1910, opium and indigo). There are obvious parallels there with the developments in some Latin American countries, particularly Brazil, Argentina, Chile, Mexico and Colombia, which also emerged as major suppliers of raw materials (coffee, sugar, wheat, nonferrous metals) while they built up manufacturing sectors of various magnitudes (with Brazil in the lead). However, the private business sector in these countries presents a picture which differs in many ways from the Indian case. It seems worth attempting a comparison between those two very different underdeveloped regions of the world, the Indian subcontinent and Latin America, in the hope of being able to put the Indian case in a broader perspective. Given the broad similarity in the constraints under which capitalist enterprise laboured in those two areas, a study of the differences in entrepreneurial responses might bring to light certain specificities in Indian entrepreneurial history which often go unnoticed.

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Waste Management. The Disconnection between Normative and SMEs Reality

Sustainability ◽

10.3390/su13041787 ◽

2021 ◽

Vol 13 (4) ◽

pp. 1787

Author(s):

Francisco Javier Villegas Pinuer ◽

Joan Llonch Andreu ◽

Pilar López Belbeze ◽

Leslier Valenzuela-Fernández

Keyword(s):

Waste Management ◽

Technical Assistance ◽

Raw Materials ◽

Critical Factor ◽

Waste Generation ◽

Waste Hierarchy ◽

Global Environmental ◽

Economic Support ◽

The Relationship ◽

Depth Interviews

Waste generation is a critical factor in global environmental degradation, where SMEs have been historically relevant yet underestimated. This study covers the issue of the disconnection between the normative and SMEs reality. Therefore, this research aims to investigate the relationship between waste management norms and their application in Chilean SMEs. For context, Chile is the nation that generates the most amount of waste per capita in the region. Nevertheless, the country also has one of the most rigorous waste frameworks in the region, by means of the Extended Responsibility Producer (ERP) law, which has been gradually implemented since 2016. Data for the study were collected through in-depth interviews with 25 SMEs. The results show the practical limitations of SMEs in complying with the waste law, the lack of traceability in the waste management system, and the need for economic support and technical assistance to improve the use and management of sustainable raw materials. Therefore, this study contributes to the limited knowledge of how SMEs implement waste management norms and their importance in diminishing waste generation and promoting waste hierarchy.

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Microstructural characterization of laser-melted/roller-quenched dicalcium silicate

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100104972 ◽

1988 ◽

Vol 46 ◽

pp. 582-583

Author(s):

C. J. Chan ◽

K. R. Venkatachari ◽

W. M. Kriven ◽

J. F. Young

Keyword(s):

Particle Size ◽

Raw Materials ◽

Shape Change ◽

Microstructural Characterization ◽

Particle Size Effect ◽

Dicalcium Silicate ◽

Laser Melting ◽

Uniform Size ◽

Cell Shape Change ◽

Wide Range

Dicalcium silicate (Ca2SiO4) is a major component of Portland cement. It has also been investigated as a potential transformation toughener alternative to zirconia. It has five polymorphs: α, α'H, α'L, β and γ. Of interest is the β-to-γ transformation on cooling at about 490°C. This transformation, accompanied by a 12% volume increase and a 4.6° unit cell shape change, is analogous to the tetragonal-to-monoclinic transformation in zirconia. Due to the processing methods used, previous studies into the particle size effect were limited by a wide range of particle size distribution. In an attempt to obtain a more uniform size, a fast quench rate involving a laser-melting/roller-quenching technique was investigated.The laser-melting/roller-quenching experiment used precompacted bars of stoichiometric γ-Ca2SiO4 powder, which were synthesized from AR grade CaCO3 and SiO2xH2O. The raw materials were mixed by conventional ceramic processing techniques, and sintered at 1450°C. The dusted γ-Ca2SiO4 powder was uniaxially pressed into 0.4 cm x 0.4 cm x 4 cm bars under 34 MPa and cold isostatically pressed under 172 MPa. The γ-Ca2SiO4 bars were melted by a 10 KW-CO2 laser.

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Crystallization of barium hexaferrite

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100122216 ◽

1992 ◽

Vol 50 (1) ◽

pp. 362-363

Author(s):

Chung-kook Lee ◽

Yolande Berta ◽

Robert F. Speyer

Keyword(s):

Size Distribution ◽

Raw Materials ◽

Barium Hexaferrite ◽

Recording Media ◽

Magnetic Recording Media ◽

Promising Candidate ◽

Crystallization Method ◽

Temperature Heat ◽

High Density Magnetic Recording ◽

Temperature Heat Treatment

Barium hexaferrite (BaFe12O19) is a promising candidate for high density magnetic recording media due to its superior magnetic properties. For particulate recording media, nano-sized single crystalline powders with a narrow size distribution are a primary application requirement. The glass-crystallization method is preferred because of the controllability of crystallization kinetics, hence, particle size and size distribution. A disadvantage of this method is the need to melt raw materials at high temperatures with non-reactive crucibles, e.g. platinum. However, in this work, we have shown that crystal growth of barium hexaferrite occurred during low temperature heat treatment of raw batches.

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