2024 - Repozytorium publikacji - Politechnika Gdańska

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Publikacje z roku 2024

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Determining an Architectural Character for Durban Residential Streetscapes
- Louis du Plessis
2024 Pełny tekst
In the current global context and in consideration of the Sustainable Development Goals, there is a strong need for urban densification. However, this development is also driven by processes linked to the idea of capitalism and 'economic growth'. Such development often leads to the loss of the 'genius loci' of a place and sometimes even overlooks the fact that the quality of the built environment greatly influences the health and well-being of city dwellers. An important element of the quality of an urban structure is its urban landscape - referred to in this thesis as 'streetscape character'. At present, decision-makers involved in urban development unfortunately perceive little value in the quality aspects of this element and are poorly equipped to maintain or improve the existing streetscape character. The thesis research, using the example of an inner city neighbourhood in Durban, showed that a gap in current research and practical approaches is the recognition of the importance of the architectural details of buildings that define the appearance of the street. The paper shows how key these elements are to the construction of the streetscape and how they allow the context of a place to be described. The work concludes by demonstrating how these elements can support the process of maintaining a distinctive townscape. These findings can be translated into practical aspects and can be used in urban development management decisions to maintain or improve the character of the streetscape, which will ultimately contribute to the creation of a unique 'genius loci'.
Developing a Low SNR Resistant, Text Independent Speaker Recognition System for Intercom Solutions - A Case Study
- Szymon Zaporowski
- Franciszek Górski
- Józef Kotus
2024 Pełny tekst
This article presents a case study on the development of a biometric voice verification system for an intercom solution, utilizing the DeepSpeaker neural network architecture. Despite the variety of solutions available in the literature, there is a noted lack of evaluations for "text-independent" systems under real conditions and with varying distances between the speaker and the microphone. This article aims to bridge this gap. The study explores the impact of different types of parameterizations on network performance, the effects of signal augmentation, and the results obtained under conditions of low Signal-to-Noise Ratio (SNR) and reverberation. The findings indicate a significant need for further research, as they suggest substantial room for improvement.
Developing high-performance oxygen electrodes for intermediate solid oxide cells (SOC) prepared by Ce0.8Gd0.2O2−δ backbone infiltration
- Ömer Faruk Aksoy
- Bartłomiej Lemieszek
- Murat Murutoglu
- Jakub Karczewski
- Piotr Jasiński
- Sebastian Molin
2024 Pełny tekst APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Gd0.2Ce0.8O 2−δ (GDC) porous backbone infiltration with La0.6Sr0.4CoO3−δ (LSC), PrOx and LSC: PrOx as a composite oxygen electrode for intermediate solid oxide cells are conducted within the scope of this work. Samples were characterized using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and electrochemical impedance spectroscopy (EIS). A uniform distribution of the infiltrated material inside the backbone and at the electrolyte-backbone interface was achieved. EIS measurements on the prepared symmetrical samples showed electrode polarization resistance (Rp) values of 0.029 Ω.cm², 0.23 Ω.cm², and 0.44 Ω.cm² for LSC, LSC: PrOx, and PrOx at 600 °C, respectively. Long-term stability measurements at 600 °C for 100 h showed a slight increase in polarization resistance during the measurement period. Fuel cell measurements of commercial cells (Elcogen) with porous oxygen electrode consisting of GDC infiltrated with LSC showed an increase in power density compared to the reference cell with a value of 0.53 W.cm− 2 obtained at 600 °C. It is proven that infiltration via polymeric precursor into porous scaffolds as backbone oxygen electrode layer is effective and convenient method to develop high performance and stable solid oxide cells.
Developing Screen-Printing Processes for Silver Electrodes Towards All-Solution Coating Processes for Solar Cells
- Tsui-Yun Chung
- Hou-Chin Cha
- Chih-Min Chuang
- Cheng-Si Tsao
- Damian Głowienka
- Yi-Han Wang
- Hui-Chun Wu
- Yu-Ching Huang
2024 Polymers
In recent years, third-generation solar cells have experienced a remarkable growth in efficiency, making them a highly promising alternative energy solution. Currently, high-efficiency solar cells often use top electrodes fabricated by thermal evaporation, which rely on high-cost and high energy-consumption vacuum equipment, raising significant concerns for mass production. This study develops a method for fabricating silver electrodes using the screen-printing process, aiming to achieve solar cell production through an all-solution coating process. By selecting appropriate blocking-layer materials and optimizing the process, we have achieved device efficiencies for organic photovoltaics (OPVs) with screen-printed silver electrodes comparable to those with silver electrodes fabricated by thermal evaporation. Furthermore, we developed a method to cure the silver ink using near-infrared (NIR) annealing, significantly reducing the curing time from 30 min with hot air annealing to just 5 s. Additionally, by employing sheet-to-sheet (S2S) slot-die coating, we scaled up the device area and completed module development, successfully verifying stability in ambient air. We have also extended the application of screen-printed silver electrodes to perovskite solar cells (PSCs).
Development and experimental validation of a novel double-stage yield steel slit damper-buckling restrained brace
- Farzin Kazemi
- Neda Asgarkhani
- Natalia Lasowicz
- Robert Jankowski
2024 ENGINEERING STRUCTURES
This research is focused on the development and experimental validation of a novel double-stage yield steel slit damper-buckling restrained brace (SSD-DYB) system designed for seismic resistance of steel structures. The SSD-DYB integrates the energy dissipation capability of a steel slit damper (SSD) in its initial segment, enhancing performance in the case of lower seismic intensities levels while employing a larger segment for higher load resistance to maintain structural stability. The results of the study show that the proposed SSD-DYB is capable to reduce the weight of similar all-steel buckling restrained braces (BRBs) successfully addressing critical points through stiffeners and top and bottom plates. Additionally, the U-shaped element exhibits resilience during seismic loads, indicating its potential for replacing cores without failure which would be beneficial for seismic retrofitting of buildings. Experimental tests show that varying the number and shape of SSD strips significantly impacts the hysteresis curve's maximum load and dissipated energy (i.e., adding strips increased energy dissipation by 33.48 % for SSD-DYB-1), which can be used to control the proposed device for a specific performance target. Stopper mechanisms within the SSD-DYB regulate load distribution between segments and can be used to control the device and its transmitting capacities. Finally, an optimized SSD-DYB has been proposed with promising performance to be used by researchers for designing new structures or retrofit old ones.
Development of a Control System for an Autonomous Seaplane
- Krzysztof Lipiński
- Mirosław Gerigk
- Marek Chodnicki
2024 Pełny tekst
Self-driving vehicles, also branded as driverless vehicles, autonomous vehicles, or robotic vehicles, are transport systems that can operate with a reduced human impact or even with any human input at all. The content of the present paper is limited to three types of potential applications: Unmanned Surface Vehicles (USVs), Autonomous Underwater Vehicles (AUVs) and Unmanned Aerial Vehicles (UAV). We set our particular focus on Autonomous Seaplanes. In recent years, problems of Unmanned Surface Vehicles (USVs) and Autonomous Underwater Vehicles (AUVs) have been extensively investigated, primarily because of unmissable potential benefits from undersea and deep-ocean explorations. Potentially effective, the USVs, AUVs and UAVs still have various problems which we should resolve in the future, such as motion control; acquisition, identification and analysis of sensors’ information; environment-dependent behavioural decision; unnegotiable priorities in the human/machine interactions; collision-free navigation, self-localization, and other aspects.
Development of a Friction Welding System for CNC Lathes
- George-Ch. Vosniakos
- Stefanos Karavolos
- Vaggelis Tzimas
- Nikos Begiazis
- Aris Kleftogiannis
- Pantelis Galanos
- Marek Chodnicki
- Esther Pierron
2024
Dedicated friction welding machines are sturdy in order to handle large process forces but expensive. Thus, it is proposed to equip two axis CNC lathes with an add-on direct drive friction welding system as an affordable solution for occasional use. The first part to be welded is clamped on the lathe chuck, whilst the second part is clamped on a dedicated chuck on the tailstock. The latter is programmed to follow three phases: fast approach, friction and forging under constant axial force. The tailstock is moved linearly by a servo motor and controlled by a Programmable Logic Controller with force sensor feedback. The main process parameters are pressure and duration of friction and forging phases. A neural network has been set up based on data from research literature providing the respective parameter values to enter in the operator interface. Preliminary welding tests conducted on PVC and aluminum parts resulted in moderately acceptable mechanical properties and some material discontinuities pointing to a need for automatically identifying optimal processing parameters.
Development of a Planar LTCC GRIN Lens for 60 GHz Open-Ended Waveguide Antenna
- Martin Ihle
- Birgit Manhica
- Kamil Trzebiatowski
- Weronika Kalista
- Łukasz Kulas
- Krzysztof Nyka
2024 Pełny tekst
This study deals with the design, realization and evaluation of a gradient index lens (GRIN) made of low-temperature cofired ceramic (LTCC) for millimeter-wave communication systems at a frequency of 60 GHz. The LTCC GRIN lens presented here utilizes a radial refractive index profile achieved by varying the dielectric properties within the LTCC structure by punching 100 µm holes in the green LTCC sheets. We present the optimization of the refractive index gradient using zones within the LTCC structure, the simulated radiation patterns, the steps of the LTCC fabrication process and the experimental verification of the lens performance. The fabricated WR15 waveguides with lenses are characterized in an anechoic chamber and show an antenna gain of 16.6 dBi at 60 GHz. The experimental results confirm the theoretical predictions very well and show a significant improvement in beamforming and gain.
Development of a simple biogas analyzer module (BAM) for real-time biogas production monitoring
- Luciano de Melo
- Ianny Andrade Cruz
- Lucas Tadeu Fuess
- Carlos Eduardo Maynard Santana
- Ram Naresh Bharagava
- Sikandar I. Mulla
- Muhammad Bilal
- Ganesh Dattatraya Saratale
- Renan Tavares Figueiredo
- Luiz Fernando Romanholo Ferreira
2024 ENVIRONMENTAL TECHNOLOGY
Anaerobic digestion (AD) relies on the cooperation of specific microbial communities, making it susceptible to process disruptions that could impact biogas production. In this regard, this study presents a technological solution based on the Arduino platform, in the form of a simple online monitoring system that can track the produced biogas profile, named as biogas analyzer module (BAM). The applicability of the BAM focused on monitoring the biogas produced from sugarcane vinasse inoculated with sewage sludge biodigestion processed in mesophilic conditions (38 oC), in a pH range of 6.5–7.5, and following a three-stage operational model: (i) an adaptation (168 h), (ii) complete mixing (168 h), and (iii) bio-stimulation with glycerol (192 h). Then, the lab-made BAM was used to trace the produced biogas profile, which registered a total biogas volume of 8,719.86 cm3 and biomethane concentration of 95.79% (vol.), removing 90.8% (vol) of carbon dioxide (CO2) and 65.2% (vol) of hydrogen sulfide (H2S). In conclusion, the results ensured good accuracy and efficiency to the device created by comparisons with established standards (chromatographic and colorimetric methods), as well as the cost reduction. The developed device would likely be six times cheaper than what is available in the market.
Development of a Terahertz Metamaterial Micro-Biosensor for Ultrasensitive Multispectral Detection of Early-Stage Cervical Cancer
- Musa N. Hamza
- Mohammad Tariqul Islam
- Sunil Lavadiya
- Iftikhar Ud Din
- Bruno Cavalcante de Souza Sanches
- Sławomir Kozieł
- Syeda Iffat Naqvi
- Ali Farmani
- Shabiul Islam
2024 Pełny tekst IEEE SENSORS JOURNAL
This research introduces an innovative design for a metamaterial-based compact multi-band biosensor aimed at early-stage cervical cancer detection. The device operates within the terahertz (THz) frequency range, specifically from zero to six THz. The proposed sensor architecture features a metamaterial layer composed of a patterned aluminum structure deposited on a polyimide substrate. The primary design objective is to optimize the geometry parameters to achieve near-perfect absorption of electromagnetic waves across the entire operating bandwidth. The design process utilizes full-wave electromagnetic simulation tools. The paper details all intermediate steps in the sensor’s topology development, guided by an investigation of the absorption characteristics of successive architectural variations. It also analyzes the effects of the substrate and resonator material. The suitability of the proposed sensor for early-stage cancer diagnosis is demonstrated using a microwave imaging (MWI) system that incorporates the device. Extensive simulation studies confirm the sensor’s capability to distinguish between healthy and cancerous cervical tissue. For further validation, comprehensive benchmarking is conducted against numerous state-of-the-art sensor designs reported in recent literature. These comparative studies indicate that the proposed sensor offers superior performance in terms of absorbance levels and the width of the operating bandwidth, both of which enhance the sensitivity of cancer detection.
Development of a vortex-assisted switchable-hydrophilicity solvent-based liquid phase microextraction for fast and reliable extraction of Zn (II), Fe (II), Pb (II), and Cd (II) from various baby food products
- Hameed Ul Haq
- Adil Elik
- Gursel Isci
- Merve Ekici
- Nevcihan Gürsoy
- Grzegorz Boczkaj
- Nail Altunay
2024 FOOD CHEMISTRY
This manuscript describes the development of a novel liquid phase microextraction (LPME) method for the extraction and determination of Zn (II), Fe (II), Pb (II), and Cd (II) in various infant/baby food and supplements products. The method is based on vortex-assisted extraction combined with a switchable-hydrophilicity solvent (SHS) sample preparation. The SHS, which undergoes reversible phase changes triggered by pH change, enables selective extraction and easy phase separation. A flame atomic absorption spectroscopy was used in the final determination step. Optimization studies revealed, that the optimal pH of the sample solution (after digestion) during analytes extraction is 5.5. A l-proline is added to the sample (375 mM) to ensure the complexation of the target metal cations. After the complexation step, 750 µL of SHS - a N, N-Dimethylcyclohexylamine along with 0.9 mL of 2 M of acetic acid solution is added (hydrophilicity switch-on stage) and mixed manually to obtain a homogeneous solution. In the last stage, 0.45 mL of 10 M NaOH solution (hydrophilicity switch-off stage) is added to the sample solution and a vortex for 100 s is applied to ensure the effective extraction and separation of the complex containing the analytes. At this stage, a cloudy solution is immediately obtained. Finally, the effective phase separation is obtained at the centrifugation step (4000 rpm for 2 mins). The method limit of detection was as 0.03, 0.009, 0.6, and 0.2 ng/L for Zn (II), Fe (II), Cd (II), and Pb (II) respectively with RSD% below 2.0 %. The analysis of certified reference materials and real samples proved the full applicability of the method for routine analysis, contributing to the field of heavy metal analysis and ensuring the safety of baby products. According to the AGREE methodology, this method can be named as green analytical chemistry method with a score of 0.77.
Development of advanced machine learning for prognostic analysis of drying parameters for banana slices using indirect solar dryer
- Nguen Van
- Prabhu Paramasivam
- Marek Dzida
- Sameh M. Osman
- Duc Trong Nguyen Le
- Dao Nam Cao
- Thanh Hai Truong
- Viet Dung Tran
2024 Pełny tekst Case Studies in Thermal Engineering
In this study, eXtreme Gradient Boosting (XGBoost) and Light Gradient Boosting (LightGBM) algorithms were used to model-predict the drying characteristics of banana slices with an indirect solar drier. The relationships between independent variables (temperature, moisture, product type, water flow rate, and mass of product) and dependent variables (energy consumption and size reduction) were established. For energy consumption, XGBoost demonstrates superior performance with an R2 of 0.9957 during training and 0.9971 during testing, alongside minimal MSE of 0.0034 during training and 0.0008 during the testing phase indicating high predictive accuracy and low error rates. Conversely, LGBM shows lower R2 values (0.9061 training, 0.8809 testing) and higher MSE of 0.0747 during training and 0.0337 during testing, reflecting poorer performance. Similarly, for shrinkage prediction, XGBoost outperforms LGBM, evidenced by higher R2 (0.9887 training, 0.9975 testing) and lower MSE (0.2527 training, 0.4878 testing). The comparative statistics showed that XGBoost regularly outperformed LightGBM. The game theory-based Shapley functions revealed that temperature and product types were the most influential features of the energy consumption model. These findings illustrate the practical applicability of the XGBoost and LightGBM models in food drying operations towards optimizing drying conditions, improving product quality, and reducing energy consumption.
Development of an Advanced Control Algorithm for DAB DC/DC Converters: Inrush Current Limitation and Enhanced Operation in Transient States.
- Serafin Bachman
- Marek Turzyński
2024 Pełny tekst Bulletin of the Polish Academy of Sciences-Technical Sciences
The publication addresses the dynamic state challenges encountered during development of a dual active bridge (DAB) converter within DC microgrid systems. The conventional startup method is identified as instigating a cascade of unfavorable outcomes, encompassing elevated starting current, transformer current asymmetry, DC voltage distortions, EMI and heightened thermal stress on semiconductor components. Additionally, it necessitates precise calibration of magnetic components and diodes. A proposed remedy to these issues is introduced, involving a control method based on an additional phase shift to modulate the current of the primary H bridge. This novel control methodology is posited as a means to mitigate the forementioned undesirable effects associated with traditional converter initiation techniques. The research also delves into considerations of a proper design procedure for the converter. Emphasis is placed on integrating the novel control methodology into the design framework in order to effectively address challenges arising during transient states. Validation of the proposed solution is substantiated through a series of laboratory tests, the results of which are comprehensively presented in the article. These tests affirm the efficiency of the system when incorporating the novel control methodology, thereby substantiating its practical utility in mitigating the issues identified during the initiation phase of the DAB converter in DC microgrid systems.
Development of an emulation platform for synchronous machine power generation system using a nonlinear functional level model
- Filip Kutt
- Łukasz Sienkiewicz
- Szymon Racewicz
- Michał Michna
- Roland Ryndzionek
2024 Pełny tekst Archives of Electrical Engineering
The article presents the Power Hardware in the Loop (PHIL) approach for an autonomous power system analysis based on the synchronous generator model incorporating magnetic saturation effects. The model was prepared in the MATLAB/Simulink environment and then compiled into the C language for the PHIL platform implementation. The 150 kVA bidirectional DC/AC commercial-grade converter was used to emulate the synchronous generator. It was controlled by the real-time simulation control unit with the prepared synchronous generator model incorporating magnetic saturation effects. The proposed approach was validated on the 125 kVA synchronous generator connected to the active and reactive loads of different values for the steady-state and the transient-state performance studies.
Development of an orbital shaker-assisted fatty acid-based switchable solvent microextraction procedure for rapid and green extraction of amoxicillin from complex matrices: Central composite design
- Adil Elik
- Yağmur Demirkol
- Hameed Ul Haq
- Grzegorz Boczkaj
- Khan Sanaullah
- Nail Altunay
2024 FOOD CHEMISTRY
In this study, a cheap, fast and simple orbital shaker-assisted fatty acid-based switchable solvent microextraction (OS-FASS-ME) procedure was developed for the extraction of amoxicillin (AMOX) in dairy products, pharmaceutical samples and wastewater prior to its spectrophotometric analysis. Fatty acid-based switchable solvents were investigated for extracting AMOX. The key factors of the OS-FASS-ME procedure were optimized using a central composite design. The linearity of OS-FASS-ME procedure was in the range 5–600 ng mL−1 with a correlation coefficient of 0.991. In five replicate experiments for 20 ng mL−1 of AMOX solution, the recovery and relative standard deviation were 95.8% and 2.2%, respectively. Limits of detection and quantification were found 1.5 ng mL−1 and 5 ng mL−1, respectively. The accuracy, precision, robustness and selectivity of the OS-FASS-ME procedure were investigated in detail under optimum conditions. The OS-FASS-ME procedure was applied to milk, cheese, wastewater, syrups and tablets. A comparison of the results obtained from the reference method and the OS-FASS-ME method showed that the OS-FASS-ME procedure can be successfully applied to complex matrices.
Development of novel smartphone-based methods of wine quality assessment
- Kaja Kalinowska
2024 Pełny tekst
The doctoral dissertation concerns the development of novel smartphone-based analytical methods of wine quality evaluation, which would be in line with the stipulations of green and equitable analytical chemistry. This solution is based on the analysis of biogenic amines and selected bioactive compounds. The dissertation is based on four articles containing the results of research which led to the development of smartphone-based approach. It was shown that the comprehensive analytical solution comprised of the experimental setup for smartphone-based analysis and a set of methods for the determination of multiple bioactive compounds can be used for wine quality assessment. The use of experimental setup for smartphone-based analysis facilitates modification and adaptation to particular applications. Furthermore, the portability of the setup and simplification of sample preparation procedures enable not only in-field use but also application in each stage of the manufacturing and distribution process.
Development of potent and effective SARS-CoV-2 main protease inhibitors based on maleimide analogs for the potential treatment of COVID-19
- Karol Biernacki
- Olga Ciupak
- Mateusz Daśko
- Janusz Rachoń
- Damian Flis
- Justyna Budka
- Iwona Inkielewicz-Stępniak
- Anna Czaja
- Janusz Rak
- Sebastian Demkowicz
2024 Pełny tekst JOURNAL OF ENZYME INHIBITION AND MEDICINAL CHEMISTRY
In the present work, we report a new series of potent SARS-CoV-2 Main Protease (Mpro) inhibitors based on maleimide derivatives. The inhibitory activities were tested in an enzymatic assay using recombinant Mpro (3CL Protease from coronavirus SARS-CoV-2). Within the set of new Mpro inhibitors, 6e demonstrated the highest activity in the enzymatic assay with an IC50 value of 8.52 ± 0.44 mM. The IC50 value for Nirmatrelvir (PF-07321332, used as a reference) was 0.84 ± 0.37 mM. The cytotoxic properties were determined in the MTT assay using MRC-5 and HEK-293 cell lines. In the course of the investigation, we found that the newly obtained maleimide derivatives are not substantially cytotoxic (IC50 values for most compounds were above 200 mM).
Development of thin film SPME sorbents based on deep eutectic solvents and their application for isolation and preconcentration of endocrine-disrupting compounds leaching from diapers to urine
- Aneta Chabowska
- Justyna Werner
- Agnieszka Zgoła-Grześkowiak
- Julia Płatkiewicz
- Robert Frankowski
- Justyna Płotka-Wasylka
2024 MICROCHEMICAL JOURNAL
In this study, the thin film solid phase microextraction (TF-SPME) based on a novel sorbent composed of deep eutectic solvent (DES) is proposed. Among several synthesized sorbents the most efficient was DES containing trihexyl(tetradecyl)phosphonium chloride and docosanol mixed with polydimethylsiloxane (PDMS) in a molar ratio 1:3:0.25 to achieve a more stable structure. The proposed sorbent was applied on a fiberglass mesh and used as a TF-SPME sorbent for the determination of fifteen endocrine-disrupting compounds (EDCs): methylparaben (MeP), ethylparaben (EtP), propylparaben (PrP), butylparaben (BuP), benzylparaben (BzP), bisphenol A (BPA), bisphenol S (BPS), bisphenol F (BPF), bisphenol AF (BPAF), bisphenol E (BPE), bisphenol B (BPB), triclosan (TCS), triclocarban (TCC), butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT) leaching from diapers to synthetic urine. A central composite design methodology was used to optimize extraction from urine and four factors were tested, such as mass of DES/PDMS, extraction time, desorption time, and volume of triethylamine (additive to the desorbing solvent). The developed methodology was characterized by good metrological parameters (limit of detection (LOD): 0.01–1.15 ng mL 1, precision: 2.5–10.3 %). The method was linear in the range of 0.1 ng mL 1 to 100 ng mL 1 with a satisfactory coefficient of determination. After preconcentration by TF-SPME, EDCs were determined by LC-MS/MS. The main EDCs found in diapers were BPA, BPS, MeP, EtP, and PrP.
Diagnosis of marine internal combustion engines by means of rapidly variable temperature and composition of exhaust gas as an alternative or support for currently used diagnostic methods
- Patrycja Puzdrowska
2024 Pełny tekst Combustion Engines
The article points out relevance of parametric diagnostics of ship engines and analyzes the state of research in this field. A method is proposed for diagnosing engine systems on the basis of rapidly variable exhaust temperature while measuring its composition. A method for determining diagnoser tools from the signal within one engine cycle and mathematical and statistical treatment of test results is presented. The products of numerical moddeling in the Diesel-RK software and the products of laboratory research on a Farymann Diesel test engine were analyzed. Affect of the most popular defects on the analyzed parameters was defined. Criteria for matching a diagnoser tool in accordance with the type of damage in a ship engine was presented. A methodology was proposed for adapting the presented method to metering on a ship engine in operation.
Diagnostics and protection methods a residential building in connection with the reconstruction of a road located in its immediate neighborhood - case study
- Maciej Niedostatkiewicz
2024 Pełny tekst Inżynieria Bezpieczeństwa Obiektów Antropogenicznych
The paper is a case study in the assessment of the technical condition of a residential building showing a significant degree of technical wear and tear, which was located in the impact zone of the road planned for expansion. Due to the commencement of works related to the expansion of the road, a doubt arose whether the road works carried out, in particular on the section along the residential building, would not cause further deterioration of its technical condition, causing a pre-failure condition, failure or leading to a construction disaster. The paper presents a detailed description of the methodology for assessing the technical condition of the residential building in question.