Temat: life-cycle - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Comprehensive review of life cycle assessment methodologies for passenger vehicles
Autorzy:: Szumska, Emilia M.
Tematy:: Life Cycle Assessment
LCA
vehicle life cycle
electric vehicle
environmental impact; Pokaż więcej
Wydawca:: Fundacja Centrum Badań Socjologicznych
Powiązania:: https://bibliotekanauki.pl/articles/58906228.pdf Link otwiera się w nowym oknie
Opis:: Purpose: This paper aims to advance knowledge in the methodology of environmental life cycle assessment (LCA) for vehicles and to discern potential environmental and health burdens associated with combustion and electric vehicles. Methodology: A systematic review was conducted using the Scopus database, with a focus on papers published between 2005 and November 2023. The search was refined to include only English-language publications investigating passenger vehicles, resulting in a final corpus of 75 studies. Results: The review revealed that LCA conclusions for automotive vehicles can vary widely depending on the specific study's scope, methodology, and goals. Many studies emphasize the need for a holistic approach considering various drive technologies, production aspects, and local geographical conditions. Theoretical contribution: This paper contributes to the field of environmental science and sustainability by synthesizing the current state of knowledge on the environmental impact of vehicles across their entire life cycle. The findings highlight the importance of a nuanced and comprehensive approach to understanding and mitigating the environmental externalities of transportation. Practical implications: The insights from this review can inform policymakers, manufacturers, and consumers in their decisions regarding sustainable transportation solutions. By understanding the key areas of concern and improvement opportunities across the entire life cycle of vehicles, stakeholders can work towards a more environmentally responsible and sustainable transportation system.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Evaluation of the Life Cycle Costs for urban buses equipped with conventional and hybrid drive trains
Autorzy:: Szumska, Emilia
Pawełczyk, Marek
Pistek, Vaclav
Tematy:: Life Cycle Cost
hybrid electric vehicle
Life Cycle Assessment
air pollutant
urban bus; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Powiązania:: https://bibliotekanauki.pl/articles/263557.pdf Link otwiera się w nowym oknie
Opis:: The life cycle cost (LCC) methodology provides understanding of economic aspects of urban buses equipped with different types of propulsion. The LCC analysis delivers the sum of costs related to the acquisition, operation, repair and maintenance disposal as well as the costs for the each bus power train technology. The method allows to take into account all costs for the whole vehicle’s life cycle and creates a precondition for precise information database for decision making. In addition to the economic factors LCC can be extended to environmental aspects such as greenhouse gases emissions. The environmental impacts of the vehicle lifetime may be presented in monetary values. The paper presents the Life Cycle Cost analysis undertaken for urban buses fitted with conventional, series hybrid and parallel hybrid drives. Provided LCC analysis includes the economic and environmental aspects. The paper also delivers the evaluation of the total air pollutant emissions for all stages of lifetime of the each analysed urban bus. The results show that the hybrids have slightly lower life cycle cost than conventional bus. Moreover, hybrid buses were found to have lower life cycle environmental impacts.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Clinical and Radiological Differences in Patients Following Traumatic SCI at Different Ages
Autorzy:: Mendonça, Thalia Saraiva
de Arruda Andrade, Vitor Dias
Nogarotto Cembraneli, Pedro
de Faria Cavalcante, Julia Brasileiro
Rocha, André Salotto
Tognola, Waldir Antonio
Morais, Dionei de Freitas
de Melo-Neto, João Simão
Tematy:: life cycle stages
stage
life cycle
spinal cord injuries
spinal cord trauma; Pokaż więcej
Wydawca:: Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
Powiązania:: https://bibliotekanauki.pl/articles/28409361.pdf Link otwiera się w nowym oknie
Opis:: Background. Traumatic spinal cord injury (SCI) is a lesion that can affect several spinal structures, including the vertebrae, spinal cord, ligaments, and other adjacent parts of the spine. Traumatic spinal cord injury (SCI) can cause functional changes in patients of different ages. Material and methods. The study aims to determine whether there are social, clinical, and radiological differences between young, middle-aged, and elderly adults with SCI caused by a ground-level fall. This retrospective study analyzed the records of patients with a clinical diagnosis of SCI. It enrolled patients with traumatic spinal cord injury after a ground-level fall divided as follows: young aged adults 18–35 years of age (G1); middle-aged adults aged 36–60 years (G2); and elderly adults aged over 60 years (G3). Their clinical, social, and radiological variables were analyzed. Results. It is observed that low schooling level, being widowed, and being a homemaker were more frequently encountered among elderly adults, whereas being single was more common in middle-aged adults. The morphologic diagnosis of compression fracture and the associated injury of facial trauma occurred more frequently in elderly adults, with an increasing tendency with age. Conservative therapeutic management was most commonly encountered in elderly adults, compared to surgery from a posterior approach in middle-aged adults. Listhesis was better identified in middle-aged adults by computed tomography (CT). Spinal cord contusion and injury to the C1 vertebra were demonstrated in young adults by magnetic resonance imaging (MRI). Conclusions. 1. Elderly adults with low education level, widowed, and homemakers were more susceptible to SCI caused by a fall. 2. Single marital status was more frequently noted in young adults. 3. The most frequent clinical aspects were the morphological aspect of compression fracture and facial trauma as an associated injury in elderly adults, with the occurrence of facial trauma increasing with age. 4. Conservative therapeutic management was more common in elderly adults than surgery from a posterior approach in middle-aged adults. 5. Regarding the radiological aspects of CT, listhesis was better identified in middle-aged adults. Spinal cord contusions and C1 vertebra lesions were better identified in young adults by MRI.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Life cycle costing (LCC) jako nowoczesny model zarządzania kosztami cyklu życia na przykładzie obiektów technicznych
Life Cycle Costing (LCC) known as modern model of life cycle cost management based on example of technical object
Autorzy:: Selech, J.
Kurczewski, P.
Tematy:: rachunek kosztów
cykl życia produktu
zarządzanie kosztami
zarządzanie cyklem życia
life cycle costing
product life cycle
cost management
life cycle management; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Technologii Eksploatacji - Państwowy Instytut Badawczy
Powiązania:: https://bibliotekanauki.pl/articles/256453.pdf Link otwiera się w nowym oknie
Opis:: W artykule przedstawiono koncepcję LCC (Life Cycle Costing) wspomagającą ocenę projektu inwestycyjnego związanego z budową i eksploatacją obiektu technicznego, jakim jest chłodziarko-zamrażarka model Gram kf320. Scharakteryzowano metodykę postępowania oraz podano model analizy kosztu cyklu życia. W metodyce LCC uwzględniono podział kosztów na koszty ponoszone przez producenta w fazie przedprodukcyjnej, produkcyjnej i poprodukcyjnej. W tej ostatniej koszty podzielono na koszty ponoszone przez producenta, jak i przez konsumenta wynikające z eksploatacji urządzenia.
LCC (Life Cycle Costing) supporting evaluation of the investment project for construction and operation of the technical object such as a fridge-freezer model kf320 Gram was presented. The proceedings methodology and the model life cycle cost analysis were given. The LCC methodology takes into account the allocation of costs to the costs borne by the manufacturer in pre-production, production and post-production. The post-production costs were divided into costs generated by the producer and the consumer resulting from the operation of the device.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Modelling of production chains as a tool for intelligent manufacturing in metal forming
Autorzy:: Madej, L.
Weglarczyk, S.
Rauch, L.
Pietrzyk, M.
Tematy:: life cycle modelling
strain localization; Pokaż więcej
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Powiązania:: https://bibliotekanauki.pl/articles/1429427.pdf Link otwiera się w nowym oknie
Opis:: The objective of the paper is demonstration of the role of multi scale modelling in the system, which optimizes the whole production chain. Product exploitation and properties are the key parameters for formulation of the objective function in the optimization problem. Such parameters as fatigue resistance, wear resistance or thermal resistance are crucial for extending the life cycle of products, therefore, theoretical prediction of those parameters is inevitable for the optimization of the manufacturing system. Thus, the main focus in the paper is on description of the idea of multi scale modelling and on presentation of the multi scale model developed by the Authors. This model combines finite element (FE) solution of the macro scale problem with the cellular automata (CA) model of the micro scale phenomena. Simulation of the production chain is the second part of the paper. The chain under consideration is composed of stock heating, cold forging, machining and simulation of exploitation conditions. The correlation between the process parameters and the exploitation properties of the product is demonstrated. Finally, the optimization problem which would be the base of intelligent manufacturing, is formulated.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Types of vitellocytes and vitellogenesis in the Cestoda in relation to different types of embryonic development, ovoviviparity and life cycles
Autorzy:: Swiderski, Z.
Xylander, W.E.R.
Tematy:: Cestoda
life cycle
ovoviviparity
embryogenesis
vitellogenesis; Pokaż więcej
Wydawca:: Polskie Towarzystwo Parazytologiczne
Powiązania:: https://bibliotekanauki.pl/articles/839318.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Environmental Efficiency of Industrial Symbiosis – LCA Case Study for Gypsum Exchange
Autorzy:: Marcinkowski, A.
Tematy:: industrial symbiosis
life cycle assessment
gypsum; Pokaż więcej
Wydawca:: STE GROUP
Powiązania:: https://bibliotekanauki.pl/articles/2065022.pdf Link otwiera się w nowym oknie
Opis:: A review of the available literature concerning environmental impact assessment for industrial symbiosis has been carried out. The authors have recommended the use of life cycle assessment method for this purpose. It was stated that so far few studies presenting LCA results of industrial symbiosis have been published. Among the factors which contribute to the success of symbiotic exchange, the close location of collaborating companies has been often mentioned. This paper presents LCA results concerning the environmental impact of symbiotic gypsum transmission. Concepts of relative distance and critical distance for the case of industrial symbiosis were proposed and defined. Significant difference between critical distance obtained for particular endpoints were observed (3.5- 564 km). Application of Life Cycle Sustainability Triangle enabled the estimation of critical distance taking into account various impact categories. A sensitivity analysis indicated the relationship between critical distance and the means of transport which reflected the effect of scale. The critical distance determined for heavy trucks was 3.2 - 3.9 times longer than in case of lighter vehicles.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Rodzina – wspólnota konfliktowych interesów
Family as a Community of Conflicting Interests
Autorzy:: Poleszczuk, Jan
Tematy:: family
life cycle
social stratification
reproduction; Pokaż więcej
Wydawca:: Uniwersytet w Białymstoku. Wydawnictwo Uniwersytetu w Białymstoku
Powiązania:: https://bibliotekanauki.pl/articles/952072.pdf Link otwiera się w nowym oknie
Opis:: The article presents four perspectives on the family. In the intergenerational perspective a family is an institution of biological and cultural reproduction. Family in the perspective of the life cycle is a dynamically changing structure of “problems to solve” associated with life cycle: socialization, mating, parenting and post reproductive phase. Each phase substantially changes the structure of interests, available resources and the nature of social relationships. Family in the system of social stratification is associated with the distribution of scarce resources. The family as a system of social interaction is a complex dynamic unit which stabilizes the basic structure of the moral code (attitudes of loyalty and trust).
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Environmental Potential Impact on Biofuel Production from Thermal Cracking of Palm Shell Using Life Cycle Assessment
Autorzy:: Rusdianasari
Utarina, Leila
Kalsum, Leila
Wulandari, Daya
Bow, Yohandri
Tematy:: biofuel
life cycle assessment
palm shell; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/2202291.pdf Link otwiera się w nowym oknie
Opis:: The aim of the study was to determine the environmental potential impact of the palm shell biofuel production process using life cycle assessment (LCA) through gate to gate approach. The environmental impact of each scenario was assessed using ISO 14040 (2006), which includes goal and scope definition, life cycle inventory (LCI), life cycle impact assessment (LCIA) and interpretation. The simapro v.9 software with ecoinvent 3.5 database was utilized to assess the environmental effect. The impact analysis method used is Impact 2002+. Functional units were used to show environmental references in damage assessment and characterization, such as energy use and global warming potential. The results show that the environmental impact evaluation obtained through LCA for the entire biofuel production process stated that the thermal cracking stage resulted in the highest global warming impact, compared to other processes, which was 118.374 kg CO2 eq. For the categories of human health, ecosystem quality, and climate change, each has a value of 0.0001 DALY; 15.708 PDF•m2•yr; and 335.233 kg CO2 eq where this value is the total damage assessment of the entire biofuel production process. From the results of the analysis by utilizing the networking graph on the simapro application, it can be seen that the environmental hotspot of the thermal cracking process of biofuel production is due to the use of electricity from the State Electricity Company (PLN) and the release of chemical substances from the process. To improve the environmental performance of biofuel production process, additional development steps are required to increase biofuel yield, purification efficiency of biofuel to obtain pure liquid fuel, and the use of renewable energy sources to generate electricity. Additionally, more particular data would be required for a more precise LCA study result.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Life cycle costing used for justifying transition to predictive maintenance strategies
Autorzy:: Mikler, J.
Tematy:: reliability
life cycle costing
predictive maintenance; Pokaż więcej
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Powiązania:: https://bibliotekanauki.pl/articles/99511.pdf Link otwiera się w nowym oknie
Opis:: As the market imposes constantly increasing levels of reliability and availability of production equipment, it is necessary to shift the focus of maintenance toward predictive strategies. However, as any other investment, implementation of the required condition monitoring systems has to be cost justified. This paper presents a case study showing use of LCC calculations to assess changes of maintenance strategy for a CNC machining centre. It was proven that replacing reactive maintenance tasks with simple condition monitoring and preventive activities results in lower whole life cycle cost of the analysed machining centre.
Dostawca treści:: Biblioteka Nauki

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