Pub Date : 2017-12-31DOI: 10.5604/01.3001.0010.8367
J. Gawinecki, J. Rafa, J. Łazuka
In our work we constructed the solution of the initial-boundary value problem so-called Lamb’s problem for the half space occupied with thermo-visco-elastic medium. The visco-elastic medium was described by the Biot model, whereas thermal interactions were described by the Gurtin-Pipkin model. Using the Cagniard de Hoop method we obtained the solution of the Lamb’s problem to the considered system of integro-differential equations. Based on the constructed solution of the above mentioned problem, we described the type of waves which propagate in the thermo-visco-elastic medium and the domain of their influence. The propagation of the Rayleigh’s wave was investigated. We discovered the new Rayleigh’s wave in thermo-visco-elastic medium (second Rayleigh’s wave) and named it GRL-wave (Gawinecki-RafaLazuka – wave).
{"title":"The solution to the Lamb’s problem for nonlocal thermo-visco-elastic medium","authors":"J. Gawinecki, J. Rafa, J. Łazuka","doi":"10.5604/01.3001.0010.8367","DOIUrl":"https://doi.org/10.5604/01.3001.0010.8367","url":null,"abstract":"In our work we constructed the solution of the initial-boundary value problem so-called Lamb’s problem for the half space occupied with thermo-visco-elastic medium. The visco-elastic medium was described by the Biot model, whereas thermal interactions were described by the Gurtin-Pipkin model. Using the Cagniard de Hoop method we obtained the solution of the Lamb’s problem to the considered system of integro-differential equations. Based on the constructed solution of the above mentioned problem, we described the type of waves which propagate in the thermo-visco-elastic medium and the domain of their influence. The propagation of the Rayleigh’s wave was investigated. We discovered the new Rayleigh’s wave in thermo-visco-elastic medium (second Rayleigh’s wave) and named it GRL-wave (Gawinecki-RafaLazuka – wave).","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"66 1","pages":"241-251"},"PeriodicalIF":0.0,"publicationDate":"2017-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44304161","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 : 2017-12-31DOI: 10.5604/01.3001.0010.8227
Tadeusz Pietkiewicz, A. Kawalec, B. Wajszczyk, M. Szugajew
{"title":"Air defense planning for an area with the use of very short range air defense sets","authors":"Tadeusz Pietkiewicz, A. Kawalec, B. Wajszczyk, M. Szugajew","doi":"10.5604/01.3001.0010.8227","DOIUrl":"https://doi.org/10.5604/01.3001.0010.8227","url":null,"abstract":"","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"66 1","pages":"129-151"},"PeriodicalIF":0.0,"publicationDate":"2017-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43485197","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 : 2017-12-31DOI: 10.5604/01.3001.0010.8221
Joanna Dmitruk, Michal Glet
{"title":"Analysis of theoretical security level of PDF Encryption mechanism based on X.509 certificates","authors":"Joanna Dmitruk, Michal Glet","doi":"10.5604/01.3001.0010.8221","DOIUrl":"https://doi.org/10.5604/01.3001.0010.8221","url":null,"abstract":"","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"66 1","pages":"95-110"},"PeriodicalIF":0.0,"publicationDate":"2017-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42655433","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 : 2017-12-31DOI: 10.5604/01.3001.0010.8224
Joanna Dmitruk, J. Gawinecki
{"title":"Methods of multidimensional comparative analysis – construction and application","authors":"Joanna Dmitruk, J. Gawinecki","doi":"10.5604/01.3001.0010.8224","DOIUrl":"https://doi.org/10.5604/01.3001.0010.8224","url":null,"abstract":"","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"66 1","pages":"111-128"},"PeriodicalIF":0.0,"publicationDate":"2017-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41561188","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 : 2017-12-31DOI: 10.5604/01.3001.0010.8332
V. Nichoga, L. Vashchyshyn
{"title":"Application of the wavelet and neural technologies for processing of signals obtained during railway tracks diagnostics by the magnetic flux leakage method","authors":"V. Nichoga, L. Vashchyshyn","doi":"10.5604/01.3001.0010.8332","DOIUrl":"https://doi.org/10.5604/01.3001.0010.8332","url":null,"abstract":"","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"66 1","pages":"209-216"},"PeriodicalIF":0.0,"publicationDate":"2017-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46491494","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 : 2017-09-30DOI: 10.5604/01.3001.0010.5396
K. Just, W. Tarnowski
{"title":"Field model of electromechanical phenomena in the linear drive with permanent magnets","authors":"K. Just, W. Tarnowski","doi":"10.5604/01.3001.0010.5396","DOIUrl":"https://doi.org/10.5604/01.3001.0010.5396","url":null,"abstract":"","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"66 1","pages":"125-131"},"PeriodicalIF":0.0,"publicationDate":"2017-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46769824","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 : 2017-09-30DOI: 10.5604/01.3001.0010.5397
A. Górka
{"title":"Model of a filtration process using a membrane filter with uniform transmission structure","authors":"A. Górka","doi":"10.5604/01.3001.0010.5397","DOIUrl":"https://doi.org/10.5604/01.3001.0010.5397","url":null,"abstract":"","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"66 1","pages":"133-153"},"PeriodicalIF":0.0,"publicationDate":"2017-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42857930","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 : 2017-09-30DOI: 10.5604/01.3001.0010.5388
M. Wojtkowska, R. Kaczyński
{"title":"Quality assessment of underwater photogrammetric images for archeology purposes","authors":"M. Wojtkowska, R. Kaczyński","doi":"10.5604/01.3001.0010.5388","DOIUrl":"https://doi.org/10.5604/01.3001.0010.5388","url":null,"abstract":"","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"66 1","pages":"27-44"},"PeriodicalIF":0.0,"publicationDate":"2017-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48404798","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 : 2017-09-01DOI: 10.5604/01.3001.0010.5387
Krzysztof Sulkowski, R. Weglowski, S. Kłosowicz
Electrooptical properties of conventional Polymer-Dispersed Liquid Crystals (PDLC) composites were compared in visual and near-IR ranges for the electrically-induced light transmission effect. It was confirmed that the most important for the optical contrast value is the matching of refractive indices of the polymer matrix and dispersed droplets of liquid crystal, as well as matching droplet size and wavelength of incident radiation. The optimization of electrooptical parameters of such materials needs new liquid-crystalline mixtures dedicated for near-IR range. The studied effect can be applied for manufacturing window glasses with electrically adjusted transmission of infrared radiation.
{"title":"The comparison of electrooptical properties of PDLC liquid-crystalline composites in visual and near-IR ranges","authors":"Krzysztof Sulkowski, R. Weglowski, S. Kłosowicz","doi":"10.5604/01.3001.0010.5387","DOIUrl":"https://doi.org/10.5604/01.3001.0010.5387","url":null,"abstract":"Electrooptical properties of conventional Polymer-Dispersed Liquid Crystals (PDLC) composites were compared in visual and near-IR ranges for the electrically-induced light transmission effect. It was confirmed that the most important for the optical contrast value is the matching of refractive indices of the polymer matrix and dispersed droplets of liquid crystal, as well as matching droplet size and wavelength of incident radiation. The optimization of electrooptical parameters of such materials needs new liquid-crystalline mixtures dedicated for near-IR range. The studied effect can be applied for manufacturing window glasses with electrically adjusted transmission of infrared radiation.","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"66 1","pages":"15-26"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46437418","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 : 2017-07-03DOI: 10.5604/01.3001.0010.1890
M. Sobiech
The article presents important considerations related to the use of renewable energy installations in modern buildings for various purposes. The essence of the matter is the question of an innovative technical solution for heating installations and preparation of hot water in moderate climate conditions, in order to obtain the effect of the lowest cost of the maintenance and operation of the building in the heating season.
{"title":"Hybrydowe instalacje grzewcze","authors":"M. Sobiech","doi":"10.5604/01.3001.0010.1890","DOIUrl":"https://doi.org/10.5604/01.3001.0010.1890","url":null,"abstract":"The article presents important considerations related to the use of renewable energy installations in modern buildings for various purposes. The essence of the matter is the question of an innovative technical solution for heating installations and preparation of hot water in moderate climate conditions, in order to obtain the effect of the lowest cost of the maintenance and operation of the building in the heating season.","PeriodicalId":9068,"journal":{"name":"Biuletyn Wojskowej Akademii Technicznej","volume":"66 1","pages":"67-77"},"PeriodicalIF":0.0,"publicationDate":"2017-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44280112","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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