Inżynieria Bezpieczeństwa Obiektów Antropogenicznych最新文献_第4页

The impact of the covid-19 pandemic on business entity cyber security 新冠肺炎疫情对企业网络安全的影响

Inżynieria Bezpieczeństwa Obiektów Antropogenicznych Pub Date : 2022-03-31 DOI: 10.37105/iboa.128

Joanna Antczak

引用次数: 1

Interpersonal communication in construction management engineering 建筑管理工程中的人际沟通

Inżynieria Bezpieczeństwa Obiektów Antropogenicznych Pub Date : 2022-03-31 DOI: 10.37105/iboa.131

J. Obolewicz, Adam Baryłka

引用次数: 2

The impact of target costing on the competitiveness and financial security of enterprises 目标成本法对企业竞争力和财务安全的影响

Inżynieria Bezpieczeństwa Obiektów Antropogenicznych Pub Date : 2022-03-31 DOI: 10.37105/iboa.132

Monika Szczerbak

{"title":"The impact of target costing on the competitiveness and financial security of enterprises","authors":"Monika Szczerbak","doi":"10.37105/iboa.132","DOIUrl":"https://doi.org/10.37105/iboa.132","url":null,"abstract":"The main goal of companies operating on the market is the desire to achieve success. The feelings and criteria for assessing the company's success are varied. For employees, success means a high level of remuneration, additional non-wage benefits, job security and a good atmosphere at the workplace. Management measures success with financial results, product quality, market share, customer satisfaction, innovation, production efficiency, manufacturing costs, and the company's image.In the literature on the subject, the basic measure of the company's success is achieving a competitive advantage, gaining a relatively large market share, which will ensure financial security allowing for further development.Financial security depends largely on the extent to which management knowledge is known and understood, what are the financial skills and behavior of the management staff, the use of which contributes to the effective management of the company's resources.In the current economic reality, gaining a competitive advantage by an enterprise is a difficult and complicated process. The determinants of competitiveness and financial stability are not only the products and services offered by economic entities, but the unique and specific knowledge in the enterprise. This fact caused the search and implementation of modern methods and concepts known as the lean approach.The lean approach in the field of management is currently the dominant approach in Polish literature. Among the many publications in this area, we can mention, inter alia, the studies by Ohl, Sobańska, Wawer, Obłója et al. , Świderska and Raulinajtys, Michalak, Krajewska and Stronczek, Szczerbak.The aim of the article is to show the impact of target costing - a lean management tool on the competitiveness and financial security of enterprises. To achieve this goal, the method of analyzing the literature on the subject was used.","PeriodicalId":227499,"journal":{"name":"Inżynieria Bezpieczeństwa Obiektów Antropogenicznych","volume":"286 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134401449","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}

引用次数: 1

Influence of the temperature difference between the heat source and the evaporation temperature in ORC systems working with natural refrigerants 使用天然制冷剂的ORC系统中热源和蒸发温度之间温差的影响

Inżynieria Bezpieczeństwa Obiektów Antropogenicznych Pub Date : 2022-03-31 DOI: 10.37105/iboa.130

A. Rusowicz, A. Grzebielec, P. Łapka

{"title":"Influence of the temperature difference between the heat source and the evaporation temperature in ORC systems working with natural refrigerants","authors":"A. Rusowicz, A. Grzebielec, P. Łapka","doi":"10.37105/iboa.130","DOIUrl":"https://doi.org/10.37105/iboa.130","url":null,"abstract":"The use of waste heat in many branches of industry is limited due to temperature in the range of 30 to 100oC. One of the methods of using waste heat are devices that implement the Organic Rankine Cycle (ORC). In currently used ORC systems, the heat source temperature is at least 80oC, while the low temperature heat source (usually atmospheric air) has a temperature of 30oC. The work analyzes the influence of the organic fluids properties on the performance of the proposed installation driven by the waste heat and working based on the ORC. The basic operation parameters in nominal conditions were determined for three selected natural refrigerants R290, R600a, R717 and one synthetic R245fa. The condensing temperature 30oC were defined as a nominal value. The research results compare how the generated electric power will change depending on the temperature difference between the temperature of the heat source and the temperature of evaporation. It turns out that for a device with finite dimensions, the maximum power is obtained for a specific evaporation temperature. And this is not the highest temperature that can be achieved. The highest evaporation temperature allows for the highest efficiency of the system, but not the maximum of capacity.","PeriodicalId":227499,"journal":{"name":"Inżynieria Bezpieczeństwa Obiektów Antropogenicznych","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125177510","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}

引用次数: 0

Comparative analysis of a cooling systems working on an environmentally friendly refrigerants 比较分析了一种制冷系统中工作的环保型制冷剂

Inżynieria Bezpieczeństwa Obiektów Antropogenicznych Pub Date : 2021-12-19 DOI: 10.37105/iboa.123

A. Ruciński, Mateusz Dalba, R. Laskowski

引用次数: 0

Deformation and damage to buildings caused by ground movements in mining areas (case study) 矿区地面运动对建筑物造成的变形和破坏(个案研究)

Inżynieria Bezpieczeństwa Obiektów Antropogenicznych Pub Date : 2021-12-15 DOI: 10.37105/iboa.125

L. Florkowska, I. BRYT-NITARSKA, Janusz Kruczkowski

{"title":"Deformation and damage to buildings caused by ground movements in mining areas (case study)","authors":"L. Florkowska, I. BRYT-NITARSKA, Janusz Kruczkowski","doi":"10.37105/iboa.125","DOIUrl":"https://doi.org/10.37105/iboa.125","url":null,"abstract":"Human activity causes transformations in the near-surface layers of the rock mass, which result in long-term impacts on buildings and engineering infrastructure. Mining activities are particularly disadvantageous in this context, as they trigger severe deformation processes that reach the soil surface as a result of the excavation of deposits. The prevention of accidents and disasters caused by these impacts is based on knowledge derived from observation. Therefore, the aim of this study was to acquire and update knowledge on the impact of mining-related ground deformation and tremors on buildings. The paper presents the results of measurements carried out on a group of buildings located in an underground mining area. The buildings have been affected by mining impacts since their construction in the 1980s. Despite the implementation of appropriate structural protection, the structures have been suffering deformation and damage. For the purposes of the study, two two-axis inclinometers were installed on the 15.2 m high bell tower, taking measurements at 6-hour intervals. Over a period of 10 months, changes in the leaning of the tower were measured and the condition of the other buildings observed.The study resulted in obtaining: \u0000 \u0000values for the change in tilt of the two perpendicular walls of the tower (over a period of 10 months), \u0000correlation of the results with tremors measurements and periodic surveying measurements of the inclination of the vertical edge of the tower, \u0000image of damage to buildings caused by mining deformation of the ground. \u0000 \u0000On the basis of an analysis of the location and timing of minefields excavation, the occurrence of real ground movement in the mining areas, continuing even after the end of mining works, was confirmed and irregular deformation of the originally perpendicular walls of the masonry tower building was demonstrated. The tower did not behave as a rigid body; its horizontal profile was deformed.","PeriodicalId":227499,"journal":{"name":"Inżynieria Bezpieczeństwa Obiektów Antropogenicznych","volume":"29 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116371705","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}

引用次数: 0

Ensuring safe working conditions during the rehabilitation of operated combined insulated rolled roofs 确保在组合式绝缘卷屋顶修复期间的安全工作条件

Inżynieria Bezpieczeństwa Obiektów Antropogenicznych Pub Date : 2021-12-15 DOI: 10.37105/iboa.122

V. N. Chernoivan, A. V. Torkhova, N. Chernoivan

引用次数: 0

Enviromental factors as the elements determing the development of floating homes 环境因素是决定浮动住宅发展的因素

Inżynieria Bezpieczeństwa Obiektów Antropogenicznych Pub Date : 2021-12-15 DOI: 10.37105/iboa.124

E. Miszewska, M. Niedostatkiewicz, R. Wiśniewski

引用次数: 1

Assessment of threat arising by closed - volume explosions of fuel - air mixtures 燃料-空气混合物密闭体积爆炸产生的威胁评估

Inżynieria Bezpieczeństwa Obiektów Antropogenicznych Pub Date : 2021-12-15 DOI: 10.37105/iboa.114

A. Papliński

引用次数: 1

Elastic shakedown limit of a steel lattice girder 钢格梁弹性安定极限

Inżynieria Bezpieczeństwa Obiektów Antropogenicznych Pub Date : 2021-12-15 DOI: 10.37105/iboa.120

Aneta Brzuzy

{"title":"Elastic shakedown limit of a steel lattice girder","authors":"Aneta Brzuzy","doi":"10.37105/iboa.120","DOIUrl":"https://doi.org/10.37105/iboa.120","url":null,"abstract":"This paper presents a solution for the problem concerning the behaviour of a steel lattice girder subjected to dynamic load pulses. The theory of shakedown is used in the analysis. It is assumed that such loads cause a non-elastic response which includes dissipation of energy causing deformations and residual forces developed in the structural members of the girder. At a certain intensity of these forces, the girder can react to subsequent load pulses without further dissipation of energy, behaving in the elastic region after shakedown. This condition is referred to as adaptation of the structure to assumed cyclic loading. Elastic shakedown limit is determined through a direct analysis of the girder's dynamic behaviour, i.e. by checking if energy dissipation decreases with loading cycles. This gives the number of load applications after which no further increase of the energy dissipation is observed. The existing permanent deformations persist and residual forces remain in the same state. The analysis takes into account the possibility that compressed members can buckle which may result in non-elastic, longitudinal and transverse vibrations of these members. Non-linear geometry of members is taken into account. Then a perfectly elastic-viscoplastic model of the material is used. The main goal is to determine the state of the non-elastic movements of the girder joints and the residual internal forces developed in the girder members after each load application. The values obtained in this way serve as the basis for describing the next loading cycle. It is possible to use the approach presented in the paper to evaluate the effects of accidental loads. Then it is checked whether a small number of repetitions of accidental load would result in exceeding the serviceability limit state criteria of the maximum permanent deformation or displacement and/or strain amplitudes. If so, the magnitude of accidental load is greater than the elastic shakedown limit. Some examples are given to illustrate the application of the theory of shakedown.","PeriodicalId":227499,"journal":{"name":"Inżynieria Bezpieczeństwa Obiektów Antropogenicznych","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123478836","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}

引用次数: 0