scholarly journals Bioplastics are revolutionizing the packaging industry

BioResources ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. 4663-4666
Author(s):  
Nanci Ehman ◽  
María Cristina Area
Keyword(s):  
Environmental Conditions ◽  
Low Cost ◽  
Environmentally Friendly ◽  
Life Cycles ◽  
High Availability ◽  
Renewable Sources ◽  
Product Life ◽  
Biodegradable Composites ◽  
Packaging Industry ◽  
Petroleum Derivatives

The production of bioplastics is a growing trend. The utilization of renewable sources, in some cases currently wasted, to replace petroleum derivatives, is providing opportunities to achieve more environmentally friendly product life cycles. The possibility of producing biodegradable products under normal environmental conditions is another goal of recent studies. This editorial summarizes current aspects in the production of bioplastics. We highlight new studies that make it possible to obtain biodegradable composites using a natural, renewable, high availability, and low-cost material, such as cellulose.

scholarly journals Una nueva topología de bajo costo para microinversores

2019 ◽  
pp. 7-15
Author(s):  
Luis Arturo Soriano-Avendaño ◽  
José Luis Rodríguez-Cruz ◽  
Rogelio Manuel Higuera-González ◽  
Jesús Noé Rivera-Olvera
Keyword(s):  
Solar Energy ◽  
Environmental Conditions ◽  
Low Cost ◽  
Environmentally Friendly ◽  
The Other ◽  
Partial Shading ◽  
High Frequencies ◽  
Electrolytic Capacitors ◽  
Multilayer Capacitors

In recent years, the implementation of solar energy facilities has grown, as it is considered an environmentally friendly way to produce electricity. Solar energy can be exploited under different configurations or connection schemes. The most useful connection schemes are the string connection, the power optimizers and the microinverters. Microinverters have a wide advantage compared to the other schemes due to their ability to take advantage of solar energy under different environmental conditions, such as partial shading, temperature and irradiation. The implementation of microinverters has been slowed down because of its high cost and reduced lifetime. In general, the design of microinverters commonly includes elements such as transistors, electrolytic capacitors, sensors and a microcontroller. Electrolytic capacitors are commonly used as decoupling stages, even though they present a lower lifetime due to high frequencies of operation and current rises. In this paper, a new microinverter topology is presented, it uses a low-cost array of multilayer capacitors to filter high frequencies and get a low-cost topology.

Making Failure Analysis a Value Add Proposition in Today’s High Speed Low Cost PC environment

2002 ◽  
Author(s):  
Michael Lane ◽  
Roger Bjork ◽  
Jeff Birdsley
Keyword(s):  
Failure Analysis ◽  
Product Life Cycle ◽  
High Speed ◽  
Low Cost ◽  
Life Cycles ◽  
Significant Shift ◽  
Bottom Line ◽  
Product Life ◽  
A Value ◽  
Value Add

Abstract This paper describes the Failure Analysis (FA) challenges that exist in today’s Personal Computer (PC) environment. The development and advancement in analytical tools and techniques have advanced the understanding and identification of failures, however economic and cost pressures have brought about a significant shift in the evaluation of Failure Analysis as a value add proposition as measured by the bottom line. This paper examines the factors and conditions that must be considered when assessing the FA scope and role, and its establishment as a critical value add requirement to maintain quality leadership and product performance expectations. The need for “Timely Actionable Information” becomes essential as part of the FA approach and a necessity to remain effective and competitive. This paper defines an approach by which this can be accomplished in the dynamic and high speed PC environment where product life cycles are consistently shrinking and the need for analytical techniques that yield “high confidence” answers quickly are becoming necessary. The changing conditions of the PC environment are driving the PC Failure Analysis groups to respond and adapt by establishing an Integrated Failure Analysis framework. This framework may span multiple organizations or companies and must deliver proactive information in a timely manner throughout the product life cycle (PLC). The information is proactive in the sense that FA is now identifying issues and prioritizing which of those to analyze, versus the historical model of waiting for a request by another organization.

scholarly journals Application and Development of an Environmentally Friendly Blast Hole Plug for Underground Coal Mines

2018 ◽  
Vol 2018 ◽  
pp. 1-12
Author(s):  
Donghui Yang ◽  
Yixin Zhao ◽  
Zhangxuan Ning ◽  
Zhaoheng Lv ◽  
Huafeng Luo
Keyword(s):  
Split Hopkinson Pressure Bar ◽  
Low Cost ◽  
Blast Hole ◽  
Environmentally Friendly ◽  
Test System ◽  
Industrial Test ◽  
Labor Intensity ◽  
Rock Blasting ◽  
Hopkinson Pressure Bar ◽  
The Impact

Drilling and blasting technology is one of the main methods for pressure relief in deep mining. The traditional method for blasting hole blockage with clay stemming has many problems, which include a large volume of transportation, excess loading time, and high labor intensity. An environmentally friendly blast hole plug was designed and developed. This method is cheap, closely blocks the hole, is quickly loaded, and is convenient for transportation. The impact test on the plug was carried out using an improved split Hopkinson pressure bar test system, and the industrial test was carried out in underground tunnel of coal mine. The tests results showed that, compared with clay stemming, the new method proposed in this paper could prolong the action time of the detonation gas, prevent premature detonation gas emissions, reduce the unit consumption of explosives, improve the utilization ratio, reduce the labor intensity of workers, and improve the effect of rock blasting with low cost of rock breaking.

Study on life-cycle design for the post mass production paradigm

2000 ◽  
Vol 14 (2) ◽  
pp. 149-161 ◽  
Author(s):  
YASUSHI UMEDA ◽  
AKIRA NONOMURA ◽  
TETSUO TOMIYAMA
Keyword(s):  
Life Cycle ◽  
Mass Production ◽  
Product Life Cycle ◽  
Knowledge Bases ◽  
Life Cycles ◽  
Simulation System ◽  
Product Life ◽  
Cycle Simulation ◽  
Life Cycle Design ◽  
Modular Structures

Environmental issues require a new manufacturing paradigm because the current mass production and mass consumption paradigm inevitably cause them. We have already proposed a new manufacturing paradigm called the “Post Mass Production Paradigm (PMPP)” that advocates sustainable production by decoupling economic growth from material and energy consumption. To realize PMPP, appropriate planning of a product life cycle (design of life cycle) is indispensable in addition to the traditional environmental conscious design methodologies. For supporting the design of a life cycle, this paper proposes a life-cycle simulation system that consists of a life-cycle simulator, an optimizer, a model editor, and knowledge bases. The simulation system evaluates product life cycles from an integrated view of environmental consciousness and economic profitability and optimizes the life cycles. A case study with the simulation system illustrates that the environmental impacts can be reduced drastically without decreasing corporate profits by appropriately combining maintenance, reuse and recycling, and by taking into consideration that optimized modular structures differ according to life-cycle options.

Control of Uncertainties in Metal Forming by Applications of Higher Flexibility Dimensions

2011 ◽  
Vol 104 ◽  
pp. 83-93 ◽  
Author(s):  
Peter Groche ◽  
M. Kraft ◽  
S. Schmitt ◽  
S. Calmano ◽  
U. Lorenz ◽  
...  
Keyword(s):  
Metal Forming ◽  
Life Cycles ◽  
Flexible Forming ◽  
Product Life ◽  
Product Life Cycles ◽  
Servo Press ◽  
Recent Developments

It is widely accepted that fluctuations in market demands and product life cycles are often unpredictable. Based on these uncertainties, companies cannot calculate with constant demands. Manufacturers are also confronted with quality fluctuations in semi-finished parts that lead to various product qualities. This paper identifies the most relevant uncertainties for companies and gives answers how manufacturers can deal with these problems. It also shows recent developments in the field of flexible forming using servo press technology. Hereby the focus is set on 3D Servo Presses, providing various options for accomplishing uncertainties.

Gestensteuerung als intuitives Bedienkonzept/Gesture control as an intuitive way of planning - Increasing the communication between shopfloor and planning

2015 ◽  
Vol 105 (03) ◽  
pp. 119-122
Author(s):  
A.-C. Fleischmann ◽  
P. Brosch ◽  
P. Brunkow ◽  
F. Jelich
Keyword(s):  
Life Cycles ◽  
Planning Systems ◽  
Product Life ◽  
Product Life Cycles ◽  
Gesture Control ◽  
Zukünftige Entwicklungen ◽  
Planning Department ◽  
Barriers To Communication

In Zeiten der Globalisierung sowie kürzer werdender Produktlebenszyklen mit zunehmender Dynamik sehen sich Automobilhersteller immer mehr dem Druck ausgesetzt, schnelle Anpassungen und Änderungen in sämtlichen Planungsphasen umzusetzen [1]. Infolgedessen entstehen hochkomplexe, teilweise unübersichtliche Planungssysteme, die lediglich von Experten bedienbar sind. Das erschwert eine Zusammenarbeit zwischen Planung und Mitarbeitern des Shopfloor; Änderungen nach dem Produktionsstart (SOP) werden nur in seltenen Fällen an die Planung zurückgespielt. Der Fachbeitrag beschreibt ein intuitives Bedienkonzept, um bei dieser Kommunikationshemmschwelle Abhilfe zu schaffen. Dabei wurde insbesondere der Einsatz von Consumertechnik im industriellen Umfeld überprüft. Potentiale für zukünftige Entwicklungen werden aufgezeigt.   In the wake of globalization and shorter product life cycles, automobile companies are forced to adapt more quickly to challenges and to allow changes in early planning phases. To cope with these requirements, the manufacturers introduced highly complex and partially confusing planning systems, which can only be operated by experienced experts, thus making communication between shopfloor and planning more difficult. Changes occurring after start of production (SOP) are only returned to the planning department to some extent. To overcome existing barriers to communication, intuitive operating options, mainly from consumer technology, shall be examined.

LED Light Sources in Organic Synthesis: An Entry to A Novel Approach

2021 ◽  
Vol 18 ◽  
Author(s):  
Aparna Das
Keyword(s):  
Organic Compounds ◽  
Organic Synthesis ◽  
Photochemical Reaction ◽  
Low Cost ◽  
Environmentally Friendly ◽  
Photochemical Reactions ◽  
Light Sources ◽  
Blue Led ◽  
Oxidation Reduction ◽  
Novel Approach

: In recent years, photocatalytic technology has shown great potential as a low-cost, environmentally friendly, and sustainable technology. Compared to other light sources in photochemical reaction, LEDs have advantages in terms of efficiency, power, compatibility, and environmentally-friendly nature. This review highlights the most recent advances in LED-induced photochemical reactions. The effect of white and blue LEDs in reactions such as oxidation, reduction, cycloaddition, isomerization, and sensitization is discussed in detail. No other reviews have been published on the importance of white and blue LED sources in the photocatalysis of organic compounds. Considering all the facts, this review is highly significant and timely.

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