Pub Date : 2023-02-02DOI: 10.31926/but.pcs.2022.64.15.3.11
G. Moarcas
No abstract
没有抽象的
{"title":"Tom Hansell. 2018. After Coal: Stories of Survival in Appalachia and Wales. Morgantown: West Virginia University Press","authors":"G. Moarcas","doi":"10.31926/but.pcs.2022.64.15.3.11","DOIUrl":"https://doi.org/10.31926/but.pcs.2022.64.15.3.11","url":null,"abstract":"No abstract","PeriodicalId":53266,"journal":{"name":"Bulletin of the Transilvania University of Brasov Series V Economic Sciences","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80475581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-02DOI: 10.31926/but.pcs.2022.64.15.3.7
Gabriela Chefneux
The paper uses the Matrix Categorization Devices theory in order to analyze the way in which the abandoned mines in Romania have been presented in newspapers over the period beginning with their closure up to the present time. In order to conduct the analysis, the paper provides a theoretical framework of the Membership Categorization Device (the category being mines and the members – the people and places); the last part discusses the results of the analysis.
{"title":"Abandoned Mines – Categories in Romanian Local Newspapers - People and Places","authors":"Gabriela Chefneux","doi":"10.31926/but.pcs.2022.64.15.3.7","DOIUrl":"https://doi.org/10.31926/but.pcs.2022.64.15.3.7","url":null,"abstract":"The paper uses the Matrix Categorization Devices theory in order to analyze the way in which the abandoned mines in Romania have been presented in newspapers over the period beginning with their closure up to the present time. In order to conduct the analysis, the paper provides a theoretical framework of the Membership Categorization Device (the category being mines and the members – the people and places); the last part discusses the results of the analysis.","PeriodicalId":53266,"journal":{"name":"Bulletin of the Transilvania University of Brasov Series V Economic Sciences","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85582385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-02DOI: 10.31926/but.pcs.2022.64.15.3.8
Iulia Salcă
The history of the Jiu Valley has gone through multiple stages that have polished the identity of the communities. The development of mine exploitation has attracted immigrants from all over the country and from abroad. This has led to the emergence of two types of local identity communities: the natives and the newcomers. The relations between them have influenced the strategies used in building their constitution of identity. This paper focuses on the idea that these two types of identity are directly responsible for the degree of community homogeneity. In this respect, the natives belonged to a homogeneous community, with one dominant source of collective identity, while the arrival of the newcomers transformed the community into a heterogeneous one, with pluralistic sources of identity. These aspects reflect in the identity narratives which can be found in the Jiu Valley nowadays. The analysis of these narratives shows a common history, filled with tension, negation, disappointment, and acceptance.
{"title":"Homogeneity vs. Heterogeneity: An Identity crisis of the communities in the Jiu Valley","authors":"Iulia Salcă","doi":"10.31926/but.pcs.2022.64.15.3.8","DOIUrl":"https://doi.org/10.31926/but.pcs.2022.64.15.3.8","url":null,"abstract":"The history of the Jiu Valley has gone through multiple stages that have polished the identity of the communities. The development of mine exploitation has attracted immigrants from all over the country and from abroad. This has led to the emergence of two types of local identity communities: the natives and the newcomers. The relations between them have influenced the strategies used in building their constitution of identity. This paper focuses on the idea that these two types of identity are directly responsible for the degree of community homogeneity. In this respect, the natives belonged to a homogeneous community, with one dominant source of collective identity, while the arrival of the newcomers transformed the community into a heterogeneous one, with pluralistic sources of identity. These aspects reflect in the identity narratives which can be found in the Jiu Valley nowadays. The analysis of these narratives shows a common history, filled with tension, negation, disappointment, and acceptance.","PeriodicalId":53266,"journal":{"name":"Bulletin of the Transilvania University of Brasov Series V Economic Sciences","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86253846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-29DOI: 10.31926/but.mif.2022.2.64.2.10
Sung Guen Kim
Let n ∈ N. An element (x1, . . . , xn) ∈ E n is called a norming point of T ∈ ℒ ( nE) if ∥x1∥ = · · · = ∥xn∥ = 1 and |T(x1, . . . , xn)| = ∥T∥, where ℒ( nE) denotes the space of all continuous n-linear forms on E. For T ∈ ℒ ( nE), we define Norm(T) = { n (x1, . . . , xn) ∈ En : (x1, . . . , xn) is a norming point of T } . Norm(T) is called the norming set of T. We classify Norm(T) for every T ∈ ℒ ( 2ℓ12) or ℒs ( 2ℓ13), where ℓ1n = ℝn with the ℓ1-norm.
{"title":"The norming sets of ℒ( 2ℓ1 2) and ℒS( 2ℓ1 3)","authors":"Sung Guen Kim","doi":"10.31926/but.mif.2022.2.64.2.10","DOIUrl":"https://doi.org/10.31926/but.mif.2022.2.64.2.10","url":null,"abstract":"Let n ∈ N. An element (x1, . . . , xn) ∈ E n is called a norming point of T ∈ ℒ ( nE) if ∥x1∥ = · · · = ∥xn∥ = 1 and |T(x1, . . . , xn)| = ∥T∥, where ℒ( nE) denotes the space of all continuous n-linear forms on E. For T ∈ ℒ ( nE), we define Norm(T) = { n (x1, . . . , xn) ∈ En : (x1, . . . , xn) is a norming point of T } . Norm(T) is called the norming set of T. We classify Norm(T) for every T ∈ ℒ ( 2ℓ12) or ℒs ( 2ℓ13), where ℓ1n = ℝn with the ℓ1-norm.","PeriodicalId":53266,"journal":{"name":"Bulletin of the Transilvania University of Brasov Series V Economic Sciences","volume":"296 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74954171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-29DOI: 10.31926/but.mif.2022.2.64.2.2
A. Bica, D. Curilă (Popescu)
The purpose of this work is to investigate the convergence properties of Green’s function method applied to boundary value problems for functional differential equations. Recently, involving Picard and Mann iterations, a Green’s function technique was developed (in Int. J. Computer Math. 95, no. 10 (2018) 1937-1949) for third order functional differential equations, but without specifying the order of convergence of the proposed method. In order to improve this aspect, here we establish the maximal order of convergence of Green’s function method applied to two-point boundary value problems associated to second and third order functional differential equations. In this context, by using suitable quadrature rule and appropriate spline interpolation procedure, the Picard iterations are approximated by a sequence of cubic splines on uniform mesh. Some numerical experiments are presented in order to test the theoretical results and to illustrate the accuracy of the method.
{"title":"Cattmul-Rom spline approach and the order of convergence of Green’s functional method for functional differential equations","authors":"A. Bica, D. Curilă (Popescu)","doi":"10.31926/but.mif.2022.2.64.2.2","DOIUrl":"https://doi.org/10.31926/but.mif.2022.2.64.2.2","url":null,"abstract":"The purpose of this work is to investigate the convergence properties of Green’s function method applied to boundary value problems for functional differential equations. Recently, involving Picard and Mann iterations, a Green’s function technique was developed (in Int. J. Computer Math. 95, no. 10 (2018) 1937-1949) for third order functional differential equations, but without specifying the order of convergence of the proposed method. In order to improve this aspect, here we establish the maximal order of convergence of Green’s function method applied to two-point boundary value problems associated to second and third order functional differential equations. In this context, by using suitable quadrature rule and appropriate spline interpolation procedure, the Picard iterations are approximated by a sequence of cubic splines on uniform mesh. Some numerical experiments are presented in order to test the theoretical results and to illustrate the accuracy of the method.","PeriodicalId":53266,"journal":{"name":"Bulletin of the Transilvania University of Brasov Series V Economic Sciences","volume":"81 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83119471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-29DOI: 10.31926/but.mif.2022.2.64.2.9
Z. Jabeen, M. Lone, S. Sharma
In this paper, we obtain Chen inequalities for submanifolds in Riemannian manifolds of nearly quasi-constant curvature with a special kind of quartersymmetric connection and discuss the equality case of the inequalities. We also obtain some Casorati inequalities for submanifolds in Riemannian manifolds of nearly quasi-constant curvature with the quarter-symmetric connection.
{"title":"Optimal inequalities for submanifolds of Riemann manifolds of nearly quasi-constant curvature with quarter-symmetric connection","authors":"Z. Jabeen, M. Lone, S. Sharma","doi":"10.31926/but.mif.2022.2.64.2.9","DOIUrl":"https://doi.org/10.31926/but.mif.2022.2.64.2.9","url":null,"abstract":"In this paper, we obtain Chen inequalities for submanifolds in Riemannian manifolds of nearly quasi-constant curvature with a special kind of quartersymmetric connection and discuss the equality case of the inequalities. We also obtain some Casorati inequalities for submanifolds in Riemannian manifolds of nearly quasi-constant curvature with the quarter-symmetric connection.","PeriodicalId":53266,"journal":{"name":"Bulletin of the Transilvania University of Brasov Series V Economic Sciences","volume":"412 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77029464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-29DOI: 10.31926/but.mif.2022.2.64.2.8
A. Gherbi, B. Messerdi, S. Messerdi
We study in this paper the concept of closable-semiclosed operators in a Hilbert space and their algebraic and topological structures are investigated. We establish a non-trivial correspondence between closable and semiclosed operators. We also provide some necessary and/or sufficient conditions under which semiclosed operaors are closable. Interesting examples are provided and as an illustration, we investigate existence and uniqueness of solutions of feedback control problems where the characteristic operator is semiclosed.
{"title":"New results on semiclosedness with illustration of the solution of feedback control problems","authors":"A. Gherbi, B. Messerdi, S. Messerdi","doi":"10.31926/but.mif.2022.2.64.2.8","DOIUrl":"https://doi.org/10.31926/but.mif.2022.2.64.2.8","url":null,"abstract":"We study in this paper the concept of closable-semiclosed operators in a Hilbert space and their algebraic and topological structures are investigated. We establish a non-trivial correspondence between closable and semiclosed operators. We also provide some necessary and/or sufficient conditions under which semiclosed operaors are closable. Interesting examples are provided and as an illustration, we investigate existence and uniqueness of solutions of feedback control problems where the characteristic operator is semiclosed.","PeriodicalId":53266,"journal":{"name":"Bulletin of the Transilvania University of Brasov Series V Economic Sciences","volume":"168 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73141276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-29DOI: 10.31926/but.mif.2022.2.64.2.14
Corina-Stefania Nanau
The study of Delay Tolerant Networks (DTNs) has considerably grown in recent years as communication contexts have emerged with needs that go beyond what the Internet could offer. For example, in case of a natural disaster that damages the classic communication network, a delay tolerant network can be implemented ad hoc, to face the challenges imposed by this context. The delay tolerant network is special because there are no permanent end-to-end path between nodes and links characteristics are time-varying. This paper aims to test the performance of the DTN MaxDelivery algorithm in establishing an efficient communication in the context of a post-earthquake situation, that affected the classical communication network. The goal of the algorithm is to maximize the number of high priority messages that manage to reach their destination. A series of simulations are presented to verify the optimal parameters that the network must comply with in order to maximize the message transfer rate.
{"title":"Message priority MaxDelivery algorithm applied in earthquake communication situation","authors":"Corina-Stefania Nanau","doi":"10.31926/but.mif.2022.2.64.2.14","DOIUrl":"https://doi.org/10.31926/but.mif.2022.2.64.2.14","url":null,"abstract":"The study of Delay Tolerant Networks (DTNs) has considerably grown in recent years as communication contexts have emerged with needs that go beyond what the Internet could offer. For example, in case of a natural disaster that damages the classic communication network, a delay tolerant network can be implemented ad hoc, to face the challenges imposed by this context. The delay tolerant network is special because there are no permanent end-to-end path between nodes and links characteristics are time-varying. This paper aims to test the performance of the DTN MaxDelivery algorithm in establishing an efficient communication in the context of a post-earthquake situation, that affected the classical communication network. The goal of the algorithm is to maximize the number of high priority messages that manage to reach their destination. A series of simulations are presented to verify the optimal parameters that the network must comply with in order to maximize the message transfer rate.","PeriodicalId":53266,"journal":{"name":"Bulletin of the Transilvania University of Brasov Series V Economic Sciences","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79771253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-29DOI: 10.31926/but.mif.2022.2.64.2.3
H. Bouhadjera
In this paper, we will investigate the existence and uniqueness of common fixed points of certain mappings in the frame of a metric space. The given results cover a number of unique common fixed point theorems especially a result of Phaneendra and Swatmaram [12]. We will also display two examples to illustrate our theorems.
{"title":"A unique common fixed point for contractive mappings under a new concept","authors":"H. Bouhadjera","doi":"10.31926/but.mif.2022.2.64.2.3","DOIUrl":"https://doi.org/10.31926/but.mif.2022.2.64.2.3","url":null,"abstract":"In this paper, we will investigate the existence and uniqueness of common fixed points of certain mappings in the frame of a metric space. The given results cover a number of unique common fixed point theorems especially a result of Phaneendra and Swatmaram [12]. We will also display two examples to illustrate our theorems.","PeriodicalId":53266,"journal":{"name":"Bulletin of the Transilvania University of Brasov Series V Economic Sciences","volume":"31 7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82754714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-29DOI: 10.31926/but.mif.2022.2.64.2.11
S. Kumar, R. Prasad
The object of this article is to define and study the Clairaut semi-invariant ξ⊥ -Riemannian submersions (Csi-ξ⊥ -Riemannian submersions, In short) from Kenmotsu manifolds onto Riemannian manifolds. We obtain necessary and sufficient condition for a semi-invariant ξ⊥-Riemannian submersion to be Csi-ξ⊥-Riemannian submersion. We also work out on some fundamental differential geometric properties of these submersions. Moreover, we present consequent non-trivial example of such submersion.
{"title":"A note on Csi-ξ⊥-Riemannian submersions from Kenmotsu manifolds","authors":"S. Kumar, R. Prasad","doi":"10.31926/but.mif.2022.2.64.2.11","DOIUrl":"https://doi.org/10.31926/but.mif.2022.2.64.2.11","url":null,"abstract":"The object of this article is to define and study the Clairaut semi-invariant ξ⊥ -Riemannian submersions (Csi-ξ⊥ -Riemannian submersions, In short) from Kenmotsu manifolds onto Riemannian manifolds. We obtain necessary and sufficient condition for a semi-invariant ξ⊥-Riemannian submersion to be Csi-ξ⊥-Riemannian submersion. We also work out on some fundamental differential geometric properties of these submersions. Moreover, we present consequent non-trivial example of such submersion.","PeriodicalId":53266,"journal":{"name":"Bulletin of the Transilvania University of Brasov Series V Economic Sciences","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82893785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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