scholarly journals Fabrication Du Savon Kabakrou Et Ses Conséquences Sur Les Acteurs Principaux De Gbintou Dans La Commune De Bouaké (Côte d’Ivoire)

2016 ◽  
Vol 12 (32) ◽  
pp. 441
Author(s):  
Yedagne De André-Nestor
Keyword(s):  
Cote D'ivoire ◽  
Economic Activity ◽  
Manufacturing Process ◽  
Functional Organization ◽  
Raw Material ◽  
Contact Urticaria ◽  
Material Supply ◽  
Set Up ◽  
The Town ◽  
Entire Manufacturing Process

For the inhabitants of Gbintou (a district of the town of Bouaké), manufacture traditional soap, kabakrou, is the main economic activity of survival. In fact, this activity is a source of wealth, but a risky source of wealth. Indeed, the actors face many difficulties in the manufacturing process (raw material supply, health difficulties) the point of wanting to simply abandon the trade. The implementation of the socio-anthropological functionalist method and the study of this activity helped to understand that apart from raw material acquisition difficulties and illnesses it generates (contact urticaria, infections broncho lung), the company suffers from a lack of garish consequent functional organization and sanitary hygiene. Thus, it is desirable to set up an association or cooperative well equipped to train and organize stakeholders and better manage the entire manufacturing process.

Automation of Process Control in Chemical Plant

2015 ◽  
Vol 2 (1) ◽  
pp. 6-12
Author(s):  
Agus Sugiarta ◽  
Houtman P. Siregar ◽  
Dedy Loebis
Keyword(s):  
Process Control ◽  
Pid Control ◽  
Control Algorithm ◽  
Chemical Engineering ◽  
Chemical Plant ◽  
Raw Material ◽  
Flow Rates ◽  
Material Supply ◽  
Wide Range ◽  
Inherent Problem

Automation of process control in chemical plant is an inspiring application field of mechatronicengineering. In order to understand the complexity of the automation and its application requireknowledges of chemical engineering, mechatronic and other numerous interconnected studies.The background of this paper is an inherent problem of overheating due to lack of level controlsystem. The objective of this research is to control the dynamic process of desired level more tightlywhich is able to stabilize raw material supply into the chemical plant system.The chemical plant is operated within a wide range of feed compositions and flow rates whichmake the process control become difficult. This research uses modelling for efficiency reason andanalyzes the model by PID control algorithm along with its simulations by using Matlab.

MECHANICAL PROPERTIES OF ROTATIONALLY MOLDED PET MICROFIBRIL REINFORCED COMPOSITES

2006 ◽  
Vol 20 (25n27) ◽  
pp. 4613-4618 ◽  
Author(s):  
R. J. T. LIN ◽  
D. BHATTACHARYYA ◽  
S. FAKIROV
Keyword(s):  
Mechanical Properties ◽  
Manufacturing Industry ◽  
Polymer Processing ◽  
Raw Material ◽  
Medium Density ◽  
Reinforced Composites ◽  
Rotational Molding ◽  
Commercial Scale ◽  
Strength And Stiffness ◽  
Set Up

Being a fast growing plastic manufacturing industry, rotational molding has been using the linear polyethylenes extensively as the raw material. As these materials have shown insufficient mechanical properties for certain applications where strength and stiffness of the products are the main concerns, worldwide rotational molders have expressed a need for stronger and stiffer materials to be available for rotomolding. A possible attractive solution may be the recently developed microfibril reinforced composites (MFCs). Blends of linear medium density polyethylene/polyethylene terephthalate (LMDPE/PET) with an MFC structure are manufactured on a commercial-scale set-up and thereafter used in rotational molding. The samples are characterized morphologically and tested mechanically. The results obtained show that the MFC-concept has good application opportunities in the polymer processing including rotational molding.

Experimental Study of a Full Forward Extrusion Process from Metal Strip

2012 ◽  
Vol 504-506 ◽  
pp. 587-592 ◽  
Author(s):  
Marion Merklein ◽  
Tommaso Stellin ◽  
Ulf Engel
Keyword(s):  
Extrusion Process ◽  
Metal Strip ◽  
Raw Material ◽  
High Rate ◽  
Process Chain ◽  
Forward Extrusion ◽  
Bulk Forming ◽  
Material Conditions ◽  
Set Up ◽  
Tooling System

A high rate of production of complex microparts is increasingly required by fields like electronics and micromechanics. Handling is one of the main problems, limiting those forming processes of small metal components consisting of multiple forming stages. A forming chain in which a metal strip acts both as raw material and support of the workpiece through the different stages of the process, is seen as a solution that radically simplifies the positioning of microparts. Each workpiece stays connected to the strip through all the forming steps, being separated just at the end of the process chain. In this work, a tooling system for the bulk forming from copper strips has been set up and employed in a full forward extrusion process of a micro-billet. The same die, with a diameter of 1 mm, has been used with three different strip thicknesses (1, 2 and 3 mm) and three different material conditions. The use of thinner and hard-as-rolled strips has resulted in achieving a higher ratio of the billet length to strip thickness.

scholarly journals Setting Up a Lab-Scale Pilot Plant to Study the New Growing System (NGS®) for Leafy Vegetable and Culinary Herb Growth

Horticulturae ◽  
2021 ◽  
Vol 7 (5) ◽  
pp. 90
Author(s):  
Silvana Nicola ◽  
Giuseppe Pignata ◽  
Manuela Casale ◽  
Saeid Hazrati ◽  
Andrea Ertani
Keyword(s):  
Pilot Plant ◽  
Raw Material ◽  
Leafy Vegetables ◽  
Plant Densities ◽  
Culinary Herbs ◽  
Soilless Cultivation ◽  
Set Up ◽  
High Yields ◽  
Leaf Vegetable ◽  
Nutrient Solutions

New cultural techniques have been developed to improve the yield and raw material quality at harvest, and enhance the postharvest shelf life, by standardizing the growing system. Among the different Soilless Cultivation Systems, the New Growing System (NGS®) is a closed-recirculating system that was designed for open fields and protected cultivations. The aim of this work was to investigate the structural setting of the system and its functioning to harness the full potentiality of NGS®. A lab-scale pilot plant (LSPP) was designed with NGS® technology and the technical aspects have been set up to have a standardized and reproducible growing system. The trials were conducted on growing mature-leaf vegetable species; that is, on both head and multi-leaf vegetables, and on culinary herbs at high plant densities. Positive yield results were found for culinary herbs and leafy vegetables. Mints showed high yields for the two re-growths carried out after the first harvest. The LSPP can also be used in a series of reliable experiments and enable researches to test several species, substrates, hydroponic nutrient solutions, and fertigation scheduling.

Current Trends in the International Economic Activity of Ukraine

2021 ◽  
pp. 47-55
Author(s):  
Ljudmila Romaniuk ◽  
Keyword(s):  
International Economic ◽  
Economic Performance ◽  
Economic Activity ◽  
Public Diplomacy ◽  
Technological Development ◽  
Value Added ◽  
Machine Building ◽  
Raw Material ◽  
High Tech ◽  
Economic Relations

International economic activity occupies a special place in a complex system of the global economic relations. It reflects the mutual economic dependence of trade and economic activities of different countries of the world. The significance of the development of international economic performance of each country is growing. The purpose of the article is to determine the current state and trends of international economic performance of Ukraine, taking into account changes in the external environment. SWOT-analysis was introduced to identify strengths, weaknesses, opportunities, threats and ways to overcome weaknesses, solve problems in international economic activity, use strengths and opportunities. International economic activity is a powerful factor in the development of the country's economy and has a significant potential in regard of natural, economic and human resources, but the study has also revealed problems and negative trends. To identify trends in the effectiveness of the country's international economic activity, export-import performance indicators for 2019, 2020 and similar indicators for 2013 were analyzed. In 2020 a decline in exports in the machine-building industry is observed. Furthermore, the exports are dominated by the raw material component. The growth rate of exported goods refers to industries with a small share of value added. At the same time, imports are dominated by high-tech products, indicating a lack of strategy of technical and technological development, which leads to the deindustrialization of the country, which is a significant threat to the economy of Ukraine as a whole and its international economic activity. In the context of economic globalization, the importance of international economic relations is growing. To increase the efficiency of international economic performance it is crucial to address a number of domestic issues: stabilization of political situation, termination of military actions in the east of the country, overcoming corruption, ensuring technical and technological development, implementation of innovations at enterprises, development and implementation of multi-vector strategy, implementation of the strategy of public diplomacy in order to build a positive image of Ukraine. Further research will focus on assessing the effectiveness of international economic activity, identifying threats to national competitiveness and elaborating recommendations for overcoming them.

Impact of the change in raw material supply on enterprise strategies of the Japanese plywood industry

2018 ◽  
Vol 23 (6) ◽  
pp. 325-335 ◽  
Author(s):  
Seiji Iwanaga ◽  
Nobuyuki Tsuzuki ◽  
Hirofumi Kuboyama
Keyword(s):  
Raw Material ◽  
Material Supply ◽  
Plywood Industry

scholarly journals Paper Analyses of Tocharian manuscripts of the Pelliot Collection stored in the National Library of France (Bibliothèque nationale de France)

2020 ◽  
Vol 14 (3) ◽  
pp. 387-410
Author(s):  
Emilie Arnaud-Nguyen
Keyword(s):  
Central Asia ◽  
Manufacturing Process ◽  
Storage Conditions ◽  
Paper Analysis ◽  
Raw Material ◽  
National Library ◽  
Local Adaptations ◽  
Preliminary Results ◽  
Paper Manufacturing ◽  
The Many

This paper describes the preliminary results of my PhD research within the ERC pro­ject “HisTochText”. The aim is to perform macroscopic analyses of archaeological papers from the Pelliot Collection. They are stored in the National Library of France (Bibliothèque nationale de France). Most were discovered in the oasis kingdom of Kucha, inscribed in an ancient Indian writing, brāhmῑ. The language was unknown in France. Kucha was a meeting place for many influences both western and eastern, insofar as paper analysis seeks to determine technological influences and local adaptations. Macroscopic analyses rely on traces found in the material of the paper which may be the result of the many stages in the life of the document: the raw material, the manufacturing process, the conditions of use and the storage conditions, both ancient and modern. To this day 350 fragments have been observed. Little is known about papermaking in Central Asia. As a consequence, every shred of information must be examined in order to deter­mine the differences from and similarities to paper manufacturing in Xinjiang.

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