Analysis of the Waste Volume and CO2-Equivalent Caused by the Use of Selected Patch Pumps

2021 ◽  
pp. 193229682199152
Author(s):  
Jana Winkelkötter ◽  
Thore Reitz
Keyword(s):  
Modular Design ◽  
Insulin Pump ◽  
Raw Materials ◽  
Modular System ◽  
Mass Determination ◽  
Modular Systems ◽  
Use Of Resources ◽  
Manual Sorting ◽  
Free Insulin ◽  
Incineration Residues

Background: The use of tube-free insulin pumps is increasing. To protect the environment, the use of resources and the amount of emissions into the environment should be kept as low as possible when designing these systems. In addition to basic waste avoidance, the composition of the waste produced must be considered. Methods: To compare current tube-free pumps from an ecological standpoint, a tube-free insulin pump with a modular design and two non-modular tube-free pumps were subjected to manual separation, manual sorting, characterization, and mass determination. The annual waste volume of a user was measured, and the recyclability was assessed. The global warming potential (GWP) resulting from extraction of raw materials, energetic utilization of waste, and landfill of the incineration residues was balanced. Results: For the modular tube-free pump, a total waste volume of 5.5 kg/a (recycling percentage 44.3%) was determined. The non-modular systems generated 4.9 kg/a (recycling percentage 14.6%) and 5.1 kg/a (recycling percentage 16.0%) waste. The product-specific GWP of the modular system was approximately 50% lower than that of the non-modular systems; the packaging-specific GWP was 2.5 times higher. In total, a GWP of 13.6 kg CO2-equivalent per year could be determined for the modular system and a GWP of 15.5 kg CO2-equivalent per year for the non-modular systems. Conclusions: Although the modular micropump has a higher total waste volume, a greater ecological potential can be attributed to it. This is based on the recyclability of the system due to its modularity and the possible reduction of packaging waste.

Concepts for Standardized Shape Memory Actuators for Positioning Applications

2010 ◽  
Author(s):  
Horst Meier ◽  
Alexander Czechowicz ◽  
Sven Langbein
Keyword(s):  
Shape Memory ◽  
Modular Design ◽  
Electrical Coupling ◽  
Individual Development ◽  
Modular System ◽  
Modular Systems ◽  
Actuator System ◽  
Sma Actuator ◽  
The Individual ◽  
High Level

Actuators based on shape memory alloys (SMAs) have been developed to be used only in special applications. Therefore solutions based on SMAs generally cannot be transferred to other tasks. Focusing on the development for special applications has two important disadvantages. Firstly, the effort and costs reach a high level due to the individual development and secondly, for many companies the development of complex SMA-actuators turns out to be an insuperable barrier. Reasons for this are the complex characteristics and the missing simulation and design tools. In order to make statements about the functions and durability of the SMA-component, extensive tests need to be conducted. As a result there is a significant interest in providing SMA-actuator systems with complex and also variable functions. Modular systems allow a transfer to different areas of applications and they also lead to a reduction of variants. Using standardized components is an interesting opportunity to reduce the risk of individual development and the effort for single applications effectively. However, the increased system complexity of conventional modular systems is a problem (additional functions are required, e.g. the mechanical and electrical coupling of the modules). Apart from the conventional form of a modular system there is the possibility of a variable SMA-actuator system generated by standardized SMA-components which can be assembled to a stack system. The existing and unique potential of SMAs for function integration and therefore standardization can be used to its full extent. The aim of this paper is to show an application of such an SMA-actuator in stack design. Besides, the study presents the development process and the control concept of this actuator. An actuator system like this can be used in positioning solutions, for example. The task of this variable SMA-actuator is the conversion of a controller output variable into an exact displacement. The evidence of the realization of simple SMA-based actuators in modular design is provided with the development of this actuator system.

scholarly journals Telepathology: Design of a Modular System

2000 ◽  
Vol 21 (3-4) ◽  
pp. 193-199 ◽  
Author(s):  
K. Brauchli ◽  
H. Christen ◽  
P. Meyer ◽  
G. Haroske ◽  
W. Meyer ◽  
...  
Keyword(s):  
Modular Design ◽  
Modular System ◽  
User Needs ◽  
Software Components ◽  
Modular Systems ◽  
Clear Separation ◽  
Technological Developments ◽  
Design Systems ◽  
Diagnostic Applications ◽  
Standard Software

Although telepathology systems have been developed for more than a decade, they are still not a widespread tool for routine diagnostic applications. Lacking interoperability, software that is not satisfying user needs as well as high costs have been identified as reasons. In this paper we would like to demonstrate that with a clear separation of the tasks required for a telepathology application, telepathology systems can be built in a modular way, where many modules can be implemented using standard software components. With such a modular design, systems can be easily adapted to changing user needs and new technological developments and it is easier to integrate modular systems into existing environments.

scholarly journals SUPPORT FOR MANAGING PARTLY CONFIGURABLE MODULAR SYSTEMS

2021 ◽  
Vol 1 ◽  
pp. 2791-2800
Author(s):  
Jarkko Pakkanen ◽  
Teuvo Heikkinen ◽  
Nillo Adlin ◽  
Timo Lehtonen ◽  
Janne Mämmelä ◽  
...  
Keyword(s):  
Portfolio Management ◽  
Product Variety ◽  
Added Value ◽  
Modular System ◽  
Product Management ◽  
Design Decision ◽  
Product Portfolio ◽  
Modular Systems ◽  
Engineer To Order ◽  
The Impact

AbstractThe paper studies what kind of support could be applied to the management of partly configurable modular systems. The main tasks of product management, product portfolio management and product variety management are defined. In addition, a partly configurable product structure and modular system are defined. Because the limited support in the literature for managing partly configurable modular systems, the article reviews previous product development cases in which authors have been involved on lessons learnt basis, i.e., if the methods and tools used in the cases could provide support for the research objective. As a result, the existing definition of the modular system should be extended by the concepts of non-module and design decision sequence description when dealing with partly configurable modular systems. This is because engineer-to-order should be made possible in cases where it brings clear added value to the customer compared to completely pre-defined solutions that may limit the customer's interest in the offering. Tools to assess the impact of changes to the product offering are required. These should be taken into account in frameworks that are used in method and tool development.

scholarly journals Global Warming Potential of a New Waterjet-Based Recycling Process for Cathode Materials of Lithium-Ion Batteries

Batteries ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 29
Author(s):  
Leonard Kurz ◽  
Mojtaba Faryadras ◽  
Ines Klugius ◽  
Frederik Reichert ◽  
Andreas Scheibe ◽  
...  
Keyword(s):  
Global Warming ◽  
Global Warming Potential ◽  
Waste Treatment ◽  
Raw Materials ◽  
Lithium Ion ◽  
Primary Data ◽  
Recycling Process ◽  
Use Of Resources ◽  
Mechanical Removal ◽  
Increasing Demand

Due to the increasing demand for battery electric vehicles (BEVs), the need for vehicle battery raw materials is increasing. The traction battery (TB) of an electric vehicle, usually a lithium-ion battery (LIB), represents the largest share of a BEV’s CO2 footprint. To reduce this carbon footprint sustainably and to keep the raw materials within a closed loop economy, suitable and efficient recycling processes are essential. In this life cycle assessment (LCA), the ecological performance of a waterjet-based direct recycling process with minimal use of resources and energy is evaluated; only the recycling process is considered, waste treatment and credits for by-products are not part of the analysis. Primary data from a performing recycling company were mainly used for the modelling. The study concludes that the recycling of 1 kg of TB is associated with a global warming potential (GWP) of 158 g CO2 equivalents (CO2e). Mechanical removal using a water jet was identified as the main driver of the recycling process, followed by an air purification system. Compared to conventional hydro- or pyrometallurgical processes, this waterjet-based recycling process could be attributed an 8 to 26 times lower GWP. With 10% and 20% reuse of recyclate in new cells, the GWP of TBs could be reduced by 4% and 8%, respectively. It has been shown that this recycling approach can be classified as environmentally friendly.

STATE AND PROSPECTS OF PROCESSING OF SECONDARY RAW MATERIALS OF WINE-MAKING IN UKRAINE

2021 ◽  
Vol 15 (1) ◽  
Author(s):  
L. Osipova ◽  
O. Radionova ◽  
L. Tkachenko ◽  
T. Abramova
Keyword(s):  
Agricultural Land ◽  
Animal Feed ◽  
Raw Materials ◽  
Acid Soil ◽  
Biologically Active ◽  
Limiting Factor ◽  
Wine Making ◽  
Secondary Raw Materials ◽  
Use Of Resources ◽  
Wide Range

The analysis of the current state of processing of secondary raw materials of wine-making in Ukraine is given. It is proved that the latter is a rich source of biologically active compounds, including phenolic ones, which makes it possible to use it for the production of a wide range of products (raccoon, polyphenol extracts, tartaric acid, beverages, fertilizers, grape oil, cake, vitamin D, animal feed, food powder, abrasives) with high consumer value for various industries: food, pharmaceutical, perfume and cosmetics, chemical, feed, etc. In the light of modern research, the role of phenolic compounds as essential nutrition factors that cannot remain out of the field of view of physiologists, pharmacologists, and food hygiene specialists is shown. However, currently in Ukraine there are no specialized enterprises for complex processing of secondary raw materials of winemaking; traditional technologies are not effective from a technological, economic and environmental point of view, which indicates not rational use of resources and loss of material resources; there are no systematic studies on physical and chemical, microbiological, Toxicological composition in order to determine the optimal direction of its use. A limiting factor is also the lack of comparative analysis of innovative domestic and foreign technologies for processing secondary raw materials of winemaking. In the vast majority of cases, in particular, combs and pomace are taken out of control to agricultural land without special treatment, which leads to acid soil erosion and pollution of the environment with metabolites of micromycetes, increasing one of the global problems of mankind-environmental. At the present stage of technological development, there are a number of innovative developments in the field of processing secondary raw materials, in particular grape pomace, in order to obtain biologically active additives, the limiting factor for the introduction of which is the lack of domestic and expensive imported equipment. A promising way to solve the existing problems is to create a mechanism that will unite the interests of wineries (producers of secondary raw materials of winemaking), processing enterprises (producers of products from secondary raw materials of winemaking), scientists and potential consumers of innovative products. Consolidation of the above-mentioned institutions and enterprises is possible by creating clusters for the development and implementation of innovative technologies and equipment

scholarly journals Effectiveness of lumbar orthoses in low back pain: Review of the literature and our results

2018 ◽  
Vol 10 (4) ◽  
Author(s):  
Cordelia Schott ◽  
Sonja Zirke ◽  
Jillian Marie Schmelzle ◽  
Christel Kaiser ◽  
Lluis Aguilar I Fernández
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Randomized Study ◽  
Cost Of Care ◽  
Modular System ◽  
Low Back ◽  
Modular Systems ◽  
Frequency Of Use ◽  
Modular Groups ◽  
The Cost

Back pain and diseases of the spine are today a health disorder of outstanding epidemiological, medical, and health economic importance. The cost of care for patients with lumbosciatic complaints are steadily increasing. Accordingly, the guidelines and treatments are constantly renewed. One concept is the orthotic care. In the following we want to give an overview of the literature and the effectiveness of lumbar orthoses in low back pain supplemented by our own data. A prospective randomized study with 230 patients, divided into three groups, each with two subgroups. Three Orthoses by the TIGGES-Zours GmbH were prescribed; a demountable two-step lumbar orthosis, three-step bridging orthosis and a four-step flexion orthosis modular system. Each were compared to the nonmodular equivalent. All six groups showed improvement in pain intensity and functional capacity at 6 and 12 weeks. The modular groups were found to have improvement in the frequency of use. The subjective effectiveness and sensitivity for the modular and non-modular groups was assessed as being good. In the literature, there are no clear guidelines for an orthotic supply. The studies do not seem to be meaningful and universal due to the difficult ascertainability of pain. There is a need for further research here. Nevertheless, the authors of this review are of the opinion that the implementation of trunk orthoses is void of side effects and beneficial to patients. The modular systems seem to have an advantage as well as higher patient satisfaction.

scholarly journals Innovative Teaching and Learning Pathways for Responsible Use of Resources Focusing on the ESEE Region

2022 ◽  
Vol 5 (1) ◽  
pp. 95
Author(s):  
Mariaelena Murphy ◽  
Corina Pacher
Keyword(s):  
Teaching And Learning ◽  
Raw Materials ◽  
Knowledge Exchange ◽  
Special Focus ◽  
Cultural Perspective ◽  
Innovative Teaching ◽  
Life Long Learning ◽  
Use Of Resources ◽  
Knowledge Triangle ◽  
Learning Pathways

In a world depicted by rapid growth and consumerism, where pressing societal issues such as, the critical climate crises, resources exploitation in developing countries and much more, it is essential to educate all citizens about raw materials, their uses and about responsible production and consumption. Developing life-long learning wider society programmes is an essential tool to educate the population starting with the youngest members of society (pre-school) to adulthood (life-long learning) with a special focus on the life-world orientation from a learners’ perspective. The wider society learning flagship project, ‘Raw Matters Ambassadors at Schools’ (RM@Schools), is an innovative programme funded by the European Institute of Innovation & Technology (EIT) which promotes science education and careers in the raw materials sector. Since the project’s commencement in 2016, it has gained stronger European representation with a current total of 32 partners from 18 countries. This includes the consortium members from a parallel funded programme, RM@SchoolsESEE. This project aims at extending best practices and diversifying the current portfolio to East and Southeast European countries. What makes this project so innovative is in the programme and individual learning pathways. Considering a multidisciplinary and cultural perspective, a framework was developed to assist in forming raw materials ambassadors through engaging programmes for school pupils from aged 10 up to 19 years old and through the development of educational hands-on toolkits that range from experiments to game-based tools and much more. In particular, and as a way to increase impact, the project aims to mentor teenagers from all educational disciplines between the ages of 14–19 years old to become ‘Young RM Ambassadors’. This approach utilises state-of-the-art teaching and learning methods resulting in peer-to-peer knowledge exchange and dissemination. Built into the programme is a continuous feedback loop that involves stakeholders from all sides of the knowledge triangle: educators, pupils, professionals and researchers.

scholarly journals Improvement of Financial Standing of Enterprise by Means of Sourcing Maneuver Model Application

2018 ◽  
pp. 29-33
Keyword(s):  
Financial Stability ◽  
Raw Materials ◽  
Scientific Work ◽  
Industrial Enterprise ◽  
Distribution Model ◽  
Enterprise Management ◽  
Business Climate ◽  
Industrial Enterprises ◽  
Managerial Decisions ◽  
Use Of Resources

The most important characteristic of the economic activity of an industrial enterprise is the level of its financial standing. The higher this level, the more attractive is the company for shareholders, banks, service, raw materials and components buyers and suppliers, the more competitive its products are. In recent years, we have seen an unfavorable business climate both in Russia and around the world, which, on the one hand, forces some companies to cut costs or completely withdraw from the market, and on the other, it fosters companies’ attention to creative function, and not only in relation to the products being created, but also to the enterprise management model, the distribution and use of resources. In this connection, the possibility of using sourcing’s technologies in the issue of improving the financial stability of an industrial enterprise through the restructuring of its distribution model and the use of resources is of interest. To achieve this goal, we have used the sourcing’s maneuver model "higher utilization of production areas by providing outsourcing services". The development of proposals for improving the financial standing of the enterprise was carried out through the application of the "direct-hosting" system. In the present work, the authors developed proposals for improving the financial standing of an industrial enterprise through the application of the sourcing’s maneuver model. The results of this work can be useful for further scientific research in the field of economy of sourcing and development of the "direct-hosting" system. They can also be useful for managers of financial and economic units of large industrial enterprises. The developed proposals for improving the financial standing of an industrial enterprise through sorsing maneuver suggest the prospect of further scientific work in the field of forming methodological approaches for making managerial decisions.

scholarly journals Renewable Hydrogen Production Processes for the Off-Gas Valorization in Integrated Steelworks through Hydrogen Intensified Methane and Methanol Syntheses

Metals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1535
Author(s):  
Antonella Zaccara ◽  
Alice Petrucciani ◽  
Ismael Matino ◽  
Teresa Annunziata Branca ◽  
Stefano Dettori ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Raw Materials ◽  
Polymer Electrolyte Membrane ◽  
Aspen Plus ◽  
Sensitivity Analyses ◽  
Electrolyte Membrane ◽  
Advantages And Disadvantages ◽  
Use Of Resources ◽  
Production Processes ◽  
Reduction Of Co2

Within integrated steelmaking industries significant research efforts are devoted to the efficient use of resources and the reduction of CO2 emissions. Integrated steelworks consume a considerable quantity of raw materials and produce a high amount of by-products, such as off-gases, currently used for the internal production of heat, steam or electricity. These off-gases can be further valorized as feedstock for methane and methanol syntheses, but their hydrogen content is often inadequate to reach high conversions in synthesis processes. The addition of hydrogen is fundamental and a suitable hydrogen production process must be selected to obtain advantages in process economy and sustainability. This paper presents a comparative analysis of different hydrogen production processes from renewable energy, namely polymer electrolyte membrane electrolysis, solid oxide electrolyze cell electrolysis, and biomass gasification. Aspen Plus® V11-based models were developed, and simulations were conducted for sensitivity analyses to acquire useful information related to the process behavior. Advantages and disadvantages for each considered process were highlighted. In addition, the integration of the analyzed hydrogen production methods with methane and methanol syntheses is analyzed through further Aspen Plus®-based simulations. The pros and cons of the different hydrogen production options coupled with methane and methanol syntheses included in steelmaking industries are analyzed.

Long-acting somatostatin analogue (Sandostatin) reduces late night insulinopenic ketogenesis in diabetic teenagers

1987 ◽  
Vol 116 (4_Suppla) ◽  
pp. S45-S53 ◽  
Author(s):  
R.S.R. Aarsen ◽  
G.J. Bruining ◽  
W.F.A. Grose ◽  
R. van Strik ◽  
S.W.J. Lamberts ◽  
...  
Keyword(s):  
Blood Glucose ◽  
Insulin Pump ◽  
Movement Analysis ◽  
Early Morning ◽  
Insulin Pump Therapy ◽  
Rank Test ◽  
Somatostatin Analogue ◽  
Late Night ◽  
Free Insulin ◽  
Long Acting

Abstract. Ten diabetic teenagers were admitted into our hospital for two nights, separated by one week. In a double-blind cross-over randomized study they received either 50 μg of the new long-acting somatostatin analogue Sandostatin sc or placebo. All patients were between 12 and 16 years of age, C-peptide negative with a duration of diabetes of at least four years. They had either conventional therapy or insulin pump therapy. Insulin doses and diets were kept unchanged. Blood samples were taken half hourly from 17.00 h until 09.30 h the next morning from an indwelling venous catheter. Hormonal and metabolic profiles on the two nights were evaluated by means of a distribution free time sequential co-movement analysis and by the paired Wilcoxon's signed rank test. After Sandostatin was given at 22.00 h, GH levels were significantly suppressed during 4 h. During that period blood glucose was slightly but significantly lower than after placebo. The free-insulin profiles from both nights were very comparable. Co-movement analysis showed a significant correlation between glucose and free insulin variations with a 30-min backward shift of the glucose curve. However, after Sandostatin administration this relation was lost in the period between 22.00 and 07.00 h, indicating a different effect of insulin on glucose levels during the nights Sandostatin was given. Early morning glucose rises were associated with free insulin levels below 20 mU/l. This association was not altered during the Sandostatin nights. Glucagon was not suppressed by Sandostatin except at 120 min after injection, and remained unchanged during the rest of the observation period. Triglyceride levels as well as 3-OH-butyrate values were significantly lower after Sandostatin. Plasma levels of FFA, free glycerol, alanine and cortisol were not significantly reduced. It is concluded that a single sc injection of 50 μg of Sandostatin given at 22.00 h is a potent GH inhibitor and lowers blood glucose concentrations for up to 4 h after injection. Early morning blood glucose rise is not prevented, but overnight hepatic ketogenesis as reflected by 3-OH--butyrate levels appears suppressed by Sandostatin up to the next morning injection of insulin.

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