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Wyszukujesz frazę "life cycle" wg kryterium: Temat


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
Powiązania:
https://bibliotekanauki.pl/articles/28409361.pdf
Data publikacji:
2021-08-21
Wydawca:
Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
Tematy:
life cycle stages
stage
life cycle
spinal cord injuries
spinal cord trauma
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.
Źródło:
Ortopedia Traumatologia Rehabilitacja; 2021, 23(4); 305-314
1509-3492
2084-4336
Pojawia się w:
Ortopedia Traumatologia Rehabilitacja
Dostawca treści:
Biblioteka Nauki
Artykuł
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.
Powiązania:
https://bibliotekanauki.pl/articles/256453.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Eksploatacji - Państwowy Instytut Badawczy
Tematy:
rachunek kosztów
cykl życia produktu
zarządzanie kosztami
zarządzanie cyklem życia
life cycle costing
product life cycle
cost management
life cycle management
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.
Źródło:
Problemy Eksploatacji; 2012, 1; 99-108
1232-9312
Pojawia się w:
Problemy Eksploatacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the Life Cycle Costs for urban buses equipped with conventional and hybrid drive trains
Autorzy:
Szumska, Emilia
Pawełczyk, Marek
Pistek, Vaclav
Powiązania:
https://bibliotekanauki.pl/articles/263557.pdf
Data publikacji:
2019
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
Life Cycle Cost
hybrid electric vehicle
Life Cycle Assessment
air pollutant
urban bus
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.
Źródło:
Archiwum Motoryzacji; 2019, 83, 1; 73-86
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling of production chains as a tool for intelligent manufacturing in metal forming
Autorzy:
Madej, L.
Weglarczyk, S.
Rauch, L.
Pietrzyk, M.
Powiązania:
https://bibliotekanauki.pl/articles/1429427.pdf
Data publikacji:
2008
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
life cycle modelling
strain localization
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.
Źródło:
Journal of Machine Engineering; 2008, 8, 2; 33-42
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
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.
Powiązania:
https://bibliotekanauki.pl/articles/839318.pdf
Data publikacji:
1998
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
Cestoda
life cycle
ovoviviparity
embryogenesis
vitellogenesis
Źródło:
Annals of Parasitology; 1998, 44, 3
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Environmental Efficiency of Industrial Symbiosis – LCA Case Study for Gypsum Exchange
Autorzy:
Marcinkowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/2065022.pdf
Data publikacji:
2018
Wydawca:
STE GROUP
Tematy:
industrial symbiosis
life cycle assessment
gypsum
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.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2018, 1, 1; 793--800
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rodzina – wspólnota konfliktowych interesów
Family as a Community of Conflicting Interests
Autorzy:
Poleszczuk, Jan
Powiązania:
https://bibliotekanauki.pl/articles/952072.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet w Białymstoku. Wydawnictwo Uniwersytetu w Białymstoku
Tematy:
family
life cycle
social stratification
reproduction
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).
Źródło:
Pogranicze. Studia Społeczne; 2014, 24; 13-27
1230-2392
Pojawia się w:
Pogranicze. Studia Społeczne
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Powiązania:
https://bibliotekanauki.pl/articles/2202291.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
biofuel
life cycle assessment
palm shell
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.
Źródło:
Journal of Ecological Engineering; 2022, 23, 12; 61--67
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Life cycle costing used for justifying transition to predictive maintenance strategies
Autorzy:
Mikler, J.
Powiązania:
https://bibliotekanauki.pl/articles/99511.pdf
Data publikacji:
2011
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
reliability
life cycle costing
predictive maintenance
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.
Źródło:
Journal of Machine Engineering; 2011, 11, 4; 49-58
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulation of the Impact of Waste Batteries on Ecosystem Reliability
Autorzy:
Petrov, Oleksandr
Pohrebennyk, Volodymyr
Shybanova, Alla
Ruda, Mariia
Powiązania:
https://bibliotekanauki.pl/articles/1818471.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
batteries
life cycle
modeling
ecosystem
reliability
Opis:
To assess the impact of not just the battery as such but its multi-element composition on the state of the environment, a new approach is proposed through the determination of the reliability of ecosystems, which makes it possible to obtain quantitative indexes of the stability and losses of natural ecosystems. These data can be used as indicators of the state of the environment, and hence as the assessment of an environmental component that is important for determining the actual impact of the multi-element composition of batteries. On the basis of such indicators, which can be obtained using the SimaPro software, it is possible to calculate thresholds beyond which negative phenomena occur, as well as to predict and simulate situations, to carry out the mapping of sources of risks, to monitor changes, and this will allow identifying the causes of these changes or determining the factors that slow down or retard the approach of ecosystems to a critical state, i.e. to develop preventive measures to avoid disasters. The eco-indicator 99 is one of the methods that allows us to accept one estimate for the whole product - the so-called ecological index. It is the sum of all individual eco-points or partial indexes for all life-cycle processes. The computational procedure is carried out by summing up the results of weighing the phases of the life cycle.
Źródło:
Decision Making in Manufacturing and Services; 2020, 14, 1; 81--90
1896-8325
2300-7087
Pojawia się w:
Decision Making in Manufacturing and Services
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Model of Firm Growth
Autorzy:
Leśko, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/574429.pdf
Data publikacji:
2011-12-31
Wydawca:
Szkoła Główna Handlowa w Warszawie. Kolegium Analiz Ekonomicznych
Tematy:
firm
theory
growth
size
life cycle
Opis:
International statistics show that small firms are the dominant form of business enterprise today. Yet, despite ongoing research into the theory of the firm, there is still no common view on the mechanisms of firm growth. This article aims to stimulate further theoretical and empirical research into firm growth. In the first part of the paper, the author reviews the most seminal theories of the growth of the firm to date, noting that there are two broadly perceived schools of thought within the analysed field. The first approach advocates a more or less stochastic pattern of firm growth. The second research school holds that the resources at the firm’s disposal are the differentiators, drivers of, but also limits to, firm growth. In the second part of the paper, based on the literature review and deduction, the author develops an alternative model of firm growth. Building on the properties of the Markovian processes, he shows that it may be because of the seemingly rational behaviour of firm incumbents that most firms do not grow in size beyond some satisfying level. The proposed model of firm growth is equally applicable to firms of all sizes operating in all industries and markets.
Źródło:
Gospodarka Narodowa. The Polish Journal of Economics; 2011, 252, 11-12; 31-45
2300-5238
Pojawia się w:
Gospodarka Narodowa. The Polish Journal of Economics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Impact of Energy Source on the Life-Cycle Assessment of Power-to-Liquid Fuels
Autorzy:
Alhyari, Maha
Al-Salaymeh, Ahmed
Irshidat, Mahmoud
Kaltschmitt, Martin
Neuling, Ulf
Powiązania:
https://bibliotekanauki.pl/articles/123121.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
power-to-liquid
life cycle assessment
Opis:
Power-to-liquid (PtL) fuels are a promising technology and alternative to biofuels and conventional fuels. In this work, the environmental impact of PtL was investigated using life cycle assessment (LCA) in order to see how the energy source used in producing the PtL affects the environmental impacts of the fuel. The electrolysis cell used was solid oxide electrolysis cell, and the pathway of CO2 provision was biomass power plant. Four scenarios of energy sources were compared; the first scenario involved the electricity from German grid and heat from chemical industry, the second one was the electricity from Saudi Arabia grid and heat from chemical industry, the third one concerned the electricity from wind turbine and heat from evacuated tube collector, and the fourth scenario was the electricity from photovoltaic and heat from evacuated tube collector. The result of the life cycle assessment showed that the PtL fuels have environmental benefits over the fossil reference only in the third and fourth scenarios where renewable electricity was used.
Źródło:
Journal of Ecological Engineering; 2019, 20, 4; 239-244
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rola zarządzania cyklem życia w rozwoju obiektów technicznych i technologii
The role of Life Cycle Management in the creation of technical objects and technologies
Autorzy:
Kurczewski, P.
Powiązania:
https://bibliotekanauki.pl/articles/2071358.pdf
Data publikacji:
2010
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
refrigerator
LCM
zarządzanie cyklem życia
LCA
chłodziarko-zamrażarka
LCM-Life Cycle Management
life cycle assessment (LCA)
Opis:
W artykule scharakteryzowano koncepcjć zarzŕdzania cyklem ýycia (LCM -Life Cycle Management). Wskazano miejsce LCM na tle innych znanych koncepcji i metod zarzŕdzania. Ponadto opisano obszary zastosowań LCM i przedstawiono przykład jego wdrożenia. Jako nowość, scharakteryzowano przy tym najważniejsze etapy procesu wdrażania LCM w przedsiębiorstwie produkujnym chłodziarko-zamrażarki.
In the paper the concept of Life Cycle Management (LCM) is characterized. The place of LCM is shown on the background of remaining, known concepts and methods of management. Additionally, areas of LCM application are described and an example of its application is presented. As novelty, the most important stages of LCM implementation process in the refrigerators' manufacturing company are characterized.
Źródło:
Inżynieria i Aparatura Chemiczna; 2010, 5; 67-68
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cykl życia przedsiębiorstwa w kontekście obiektów turystyki poprzemysłowej
Company life cycle in the postindustrial tourism objects context
Autorzy:
Herman, K.
Naramski, M.
Szromek, A.
Powiązania:
https://bibliotekanauki.pl/articles/321756.pdf
Data publikacji:
2014
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
product life cycle
enterprise life cycle
post-industrial tourism
cykl życia produktu
cykl życia przedsiębiorstwa
turystyka poprzemysłowa
Opis:
This paper describes life cycles that have influence over the life cycle of a company. Moreover it is an attempt to highlight the relations that take place between those life cycles, in the post-industrial context. The effect of their analyse was creation of a life cycle model for a company that is extended by adding a touristic function to it.
Artykuł opisuje cykle życia, które mają bezpośrednie oddziaływanie na cykl życia przedsiębiorstwa. Ponadto podjęto w nim próbę zaznaczenia wzajemnych relacji między tymi cyklami w kontekście turystyki poprzemysłowej. Wynikiem ich analizy jest skonstruowanie modelu cyklu życia przedsiębiorstwa poszerzonego o funkcję turystyczną. W artykule wykorzystano metodę krytycznej analizy literatury przedmiotu, dokonując przeglądu zagadnień teoretycznych związanych z cyklem życia przedsiębiorstwa.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2014, 74; 305-323
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie podejścia cyklu życia w kreowaniu rozwiązań ekoinnowacyjnych
The life cycle approach in creation of eco-innovative solutions
Autorzy:
Michaliszyn, B.
Krupanek, J.
Powiązania:
https://bibliotekanauki.pl/articles/112951.pdf
Data publikacji:
2018
Wydawca:
STE GROUP
Tematy:
analiza cyklu życia
ekoinnowacje
jakość środowiskowa
cykl życia produktu
cykl życia usługi
Life Cycle Analysis
eco-innovations
environmental performance
life cycle of product
life cycle of service
Opis:
W publikacji przedstawione zostało teoretyczne podejście do zarządzania środowiskowego oparte na ocenie aspektów środowiskowych innowacyjnych rozwiązań technologicznych, produktów i usług w pełnym cyklu ich życia. Stosowanie tego podejścia na wczesnym etapie kreowania rozwiązań innowacyjnych, jest bardzo przydatne w ocenie ich jakości środowiskowej. Zostało ono sprawdzone w praktyce na przykładzie oceny technologii produkcji bardzo wytrzymałego kompozytu posiadającego podwyższone własności przewodzenia termicznego. Wykorzystanie tego podejścia pozwoliło na określenie oddziaływań środowiskowych nowej technologii w odniesieniu do istniejących rozwiązań oraz zidentyfikowanie kluczowych czynników wpływających na jakość środowiskową zaprojektowanego materiału kompozytowego.
The publication presents the theoretical approach to environmental management based on the assessment of environmental aspects of innovative technological solutions, products and services in their full life cycle. Applying this approach at an early stage of technologies development is very useful in assessing their environmental quality. The Life Cycle Approach has been tested in practice on the example of assessment of the production of innovative, very durable composite material with increased thermal conduction properties. The use of this approach allowed to determine the environmental impacts of new material in relation to existing technological solutions and to identify key factors affecting environmental quality of composite material.
Źródło:
Systemy Wspomagania w Inżynierii Produkcji; 2018, 7, 2; 138-148
2391-9361
Pojawia się w:
Systemy Wspomagania w Inżynierii Produkcji
Dostawca treści:
Biblioteka Nauki
Artykuł

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