bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigating the Values of Modern Architectural Heritage in Dubai, UAE
Authors: Alsuwaidi Fatima , Sabri Reyhan , Belpoliti Vittorino 
Published: December 2021

Abstract
In the last half-century, the world has witnessed a fast-paced technological development where cities have been changing tremendously in terms of infrastructure, public health, and quality of life. Looking into the Middle East and specifically in the Gulf states, the rapid urban growth started in the late 20th century has made the status of heritage structures more vulnerable. Cultural heritage in general and modern architectural heritage in particular, are facing extreme danger, which in turn leads to the loss of cultural identity and memory. The paper investigates the modern architectural heritage of the United Arab Emirates (UAE), taking Dubai as a case study. Due to the constant urban and architectural growth that Dubai has been witnessing since the 1950s, its 20th-century heritage has been put in extreme danger of neglect, or extreme physical alterations and, in many cases, demolishment. The UAE governmental bodies have started launching initiatives for the study and preservation of the modern architectural heritage, beginning with the Dubai Municipality’s initiative in 2017, and continuing on a wider scope with the UAE’s Ministry of Culture and Youth initiative in 2019. The purpose of this paper is to contribute to this process by establishing a chronological overview of the various architectural expressions of the modern era in the UAE. In that sense, the paper introduces a set of commercial architectural examples built in Dubai during the period between the 1960s and the 1970s. As well, it identifies and analyses their cultural and architectural characteristics, and assesses their values based on a chronological, morphological, and stylistic overview. The paper provides preliminary results and key findings and discusses possible guidelines and evaluation criteria to identify and evaluate Dubai’s modern built environment to aid their identification and ranking process, as well as promoting the shaping of conservation policies.
Possibility of Using Cotton Knitted Fabric Waste in Concrete
Authors: Bartulović Bruno , Juradin Sandra , Žižić Dujmo , Mrakovčić Silvija 
Published: December 2021

AbstractThe use of waste and recycled materials in the construction industry, especially in concrete production, is becoming increasingly popular. The production of cotton underwear generates a certain amount of knitted fabric waste. This study was conducted to investigate the possibility of using cotton knitted fabric waste (CKFW) in concrete and to explore its potential application in the construction industry. The aim of the study is not only to reduce the waste but also to add positive properties to the concrete. A total of 4 mixes were prepared for testing purposes. CKFW were cut into small pieces of size about 6-8 cm x 2 cm. The addition of CKFW was a substitute for aggregates and replaced 0, 2.5, 5 and 10% of the total volume of aggregates in the concrete mix to make the concrete lighter. All mixes have the same amount of cement, water and superplasticizer. The knitted waste was saturated in water before mixing with other concrete components. The properties of the fresh mix were determined by slump method. The dynamic modulus of elasticity, flexural strength and compressive strength were tested on 28 days old concrete specimens. The σ-δ diagram is also presented. It was found that specimens with CKFW have better flexural strength and higher ductility but lower compressive strength than the reference concrete mix. The mix with the highest percentage of CKFW reduced the compressive strength by 28%, while the specimens with lower percentage of CKFW increased the flexural strength by 20% compared to the reference mix. The capillary water absorption capacity of concrete is closely related to its durability. The water absorption by capillarity was measured after 2, 4, 8, 15, 30, 45, 60 min, and 4 and 24 h. The increase in the amount of water absorbed was found to be higher than that of the reference mix. It was related to the percentage increase in the knitted waste and the values obtained ranged from 3.3 to 5.6% of the mass of the dry sample. The largest reduction in concrete density was 3.8% compared to the reference mix. Based on the obtained results, recommendations for further tests are given.
Site Planning and Architectural Conceptual Design of a Electronics Factory Based on the Component Method
Authors: Haiyan Dai , Hong Zhang , Chunnan Han , Bing Meng 
Published: December 2021

Abstract
With the rapid development of the society and the economy, the urbanization have brought a lot of big impacts to China’s urban construction. The construction mode of large resource consumption is not consistent with the goal of sustainable development. At the same time, the number of workers in the construction industry is difficult to meet the needs of a large number of construction projects, and the labor cost is growing rapidly. Therefore,the architectural products need to be transformed and we need to build a sustainable urban construction system. By analyzing the transform under urbanization and traditional architectural design methods, the paper research the component method. Then, we show the application of this in site planning and architectural design. The project is in Jiangsu Province, China. The first work of the project was site planning. At this stage, the construction site requirements of prefabricated buildings were specially considered. After that, we entered the stage of architectural conceptual design, designers used component method to decompose the component system into several levels. The first level includes four functional systems, which are structure functional system, enclosure functional system, decoration functional system and equipment functional system. This paper mainly introduces the structure function system and enclosure function system.We hope that through the practice of component method, on the one hand, it can provide a method to link the design content of urban planning and architectural design; on the other hand, it can prepare for city information model.
Evaluation of the flow velocity distribution in the intake structure of a small hydropower plant
Authors: Bytčanková Lucia , Rumann Ján , Dušička Peter 
Published: December 2021

Abstract
Intake structures are an important part of small hydropower plants, which affect the water flow, turbine operation and total power of power plant. The flow quality is significantly influenced by the flow homogeneity in the intakes, as the inhomogeneous flow velocity distribution has a negative impact to the operation of the hydropower plants, such as uneven load on the mechanical parts which leads to decrease in efficiency and faster aging of turbine parts. The paper describes the flow assessment in the intake structures of a low-pressure small hydropower plant (the Stará Ľubovňa small hydropower plant) with respect to the flow homogeneity. The River2D, 2D numerical modelling software, has been used for evaluation of flow in the intakes. Flow simulations for the current state of operation have been modelled. In assessing the current situation of intake structure, scenarios were modelled. The boundary conditions were changed to approximate the various variants of hydropower plant operation. The simulations proved the negative impact of the construction solution for the flow conditions in the intakes. This appears mostly in profiles of coarse racks and screenings where is a significant unequal distribution of flow and significant deviation in flow velocities from the recommended values. The simulations results were evaluated in turbine intake profiles (profile of screenings), where the distribution of flow velocities was evaluated. The flow velocities in this profile were compared with the average flow velocity in the turbine intake profile. In order to optimize the velocity distribution in the intake structure, the modification of the intake shapes has been proposed. The subject of the proposal was to improve flow parameters. Simulations were created for the modification that were subsequently reviewed. The modification was compared to the current situation of the intakes.
Architectonics of domed temples of modern Ukraine
Authors: Cherkes Bohdan , Diachok Oksana , Kolodrubska Oleksandra , Myroniuk Sofiia , Oleg Chuyko 
Published: December 2021

Abstract
The article highlights some results of scientific work conducted by the Institute of Architecture and Design of Lviv Polytechnic National University, Department of Fine Arts and Design, Ternopil Pedagogical University, Department of Design Architectural Environment Lviv National Agrarian University and Art TheoryVasyl Stefanyk Precarpathian National University.Scientists study the art of temple building on the territory of Ukraine. The analysis was conducted based on reliable sources - archival, publications of leading scientists, their own field research. The method of field inspections included visual inspection of sacred complexes, architectural measurements, photography, sketches, etc. The aim of the scientific work is to study the genesis of the architectural and constructive creation of the sacral dome space through the tradition of Ukrainian shrines and the development of modern trends in temple building. Tradition is one of the most important components and means of creating Ukrainian church architecture. It is an expression of national features and characteristics, its identification. The most canonical type of Ukrainian churches is the cross-domes churches, which is associated with the adoption of Christianity. This tradition is closely connected with the liturgical process and is based on a combination of Eastern and Western building traditions. In figurative and compositional expression, the dome is dominant, and tectonic accent. The architecture of dome temples depends on the capabilities of structures and building materials, which are important factors in the formation process. The authors explore the traditional ways of erecting cross-dome temples on the territory of Ukraine, which are indicative and expressive features of Ukrainian temples. An important group of dome temples are buildings created in the modern period, when architects were looking for signs of Ukrainian national style. Particularly valuable is research related to the construction of neoukrainian traditional and neoteric temples designed by Ukrainian architects. Their planning and spatial decisions directly depend on new construction materials and design solutions. Some temples are described, which are an example of innovation, but at the same time are based on national traditions. Thus, the article examines the genesis of the creation and architecture of the Ukrainian cross-domed temples. Defined peculiarities of the search for national features and identification in the Ukrainian temple building in the interwar period was determined. Highlighted contribution of modern architects and designers to the process of revival of temple building in Ukraine.
Recycling of Waste Materials Using Bitumen Emulsion for Road Pavement Stabilized Base Courses: a Laboratory Investigation
Authors: Baldo Nicola , Miani Matteo , Rondinella Fabio , Pasetto Marco 
Published: December 2021

Abstract
The valorisation and reuse of waste materials can enhance the environmental sustainability of road constructions, especially by means of cold recycling techniques, which, moreover, allow to reduce polluting emissions in atmosphere. Among the various technological approaches, the use of bitumen emulsion to stabilize waste materials is very common, especially in case of reclaimed asphalt pavement (RAP) aggregates. However, even other types of waste materials could be considered using a Cold Central Plant Recycling (CCPR) approach. The paper discusses the main results of a laboratory investigation aimed to evaluate the mechanical performance of bitumen emulsion stabilized mixtures for road pavements base courses, prepared with RAP, steel slag, coal ash and glass wastes, used with various percentages. In a first step of the laboratory study, both physical and toxicological properties of each waste material have been investigated, in order to assess their environmental compatibility. Subsequently, an extensive mechanical analysis of the bitumen emulsion stabilized mixtures has been carried out in the laboratory, in terms of indirect tensile strength, indirect tensile stiffness modulus at three temperatures (10°C, 25°C, 40°C) and repeated load axial tests at 30°C. The moisture resistance of the mixes has been also investigated by means of indirect tensile strength tests carried out on soaked specimens. Very good results have been observed, depending on the mix composition: indirect tensile strength at 25 °C on dry specimens up to 0.52 MPa and stiffness modulus up to 4,056 MPa (at 25 °C, for a rise time equal to 124 ms). Therefore, it has been verified that the waste materials considered in the study can be successfully reused to completely substitute conventional aggregates in bitumen emulsion stabilized mixtures for road pavements base courses.
Assessing Structural Safety of an Arch Dam Using in Situ Vibration Tests
Authors: Gaftoi Daniel , Abdulamit Altan , Aldea Alexandru , Sarghiuta Radu , Popescu Catalin 
Published: December 2021

Abstract
Safety of large dams has always been a major concern for engineers throughout the world but also for public opinion, mass-media and politicians. This is usually based on the fact that the collapse of a large dam could result in huge consequences such as fatalities, economic and/or environmental losses. Nowadays, it is well known that an important factor adversely influencing the safety of such a complex structure like a dam is represented by ageing as a process and ageing related phenomena. Since some 85% of all existing large dams are built in the last 50 years, safety influenced by different decay processes became an important issue to be analysed by dam engineers. In this regard, in situ ambient vibration measurements used to identify the dynamic response characteristics of a large dam seems to represent an appealing non-destructive technique to assess the structural and material characteristics changes and thus to monitor the safety status of the structure. The paper presents the use of the above mentioned procedure by a Romanian team of dam specialists who developed a method combining experimental and analytical techniques for the assessment of the health status of large concrete dams. The Global Elastic Modulus Method (GEMM) was initially used for analysing buttress dams, then it was extended to assess arch dams’ safety state. The most recent evaluation was made upon a 48 m height arch dam in Romania, Cincis dam, located in the central part of the country. The paper is structured into 3 main parts: Introduction, explaining the concept of the hybrid model (the mathematical model bounded to a certain in situ measurement program and calibrated using the recorded data) and of the global elastic modulus (GEM) associated with the dam structure; Experimental, presenting the used equipment, measuring scheme and the processing of the recorded data, ending with the results from spectral analyses; Analytical, presenting the mathematical model developed for the dam structure and its calibration aiming to identify the natural response frequencies and the corresponding mode shapes of the analysed structure. Final conclusions and recommendations are made.
Building's heat potential on resources in respect to CO2 emissions and primary energy reduction (Case study)
Authors: Vranay Frantisek , Vranayova Zuzana , Lis Anna 
Published: December 2021

Abstract
An increased utilization of renewable energy sources for heating and electricity generation is one of the main tasks of the Slovak Republic. The main hypothesis is that heat pumps are very energy-efficient, and therefore environmentally benign, while providing heating and cooling in many applications. Within good conditions, the energy from low-positional heat, in other way unusable, is used to supply the energy for heat pumps. The paper confirms the applicability of such systems for long term (about 25 years). A building in Košice was used as the model of the transformation of a common office object into the character of a green and energy active one with the target programme being a sustainable building with zero balance of the energy from the network. From the comparison of the past and present operation data of the building, it is possible to show the big advantage of the usage of the heat pump water-water to the energy supply system. At favourable technical conditions in a heat supply system, it becomes the most advantageous solution in achieving today’s targets - minimum emission production combined with investment, low operating costs and achieving necessary human thermal comfort. The convenience of the system increases as it can switch between the cooling and heating process according to conditions. For the whole observed period, the energy consumption is reduced by 70%, the primary energy decreased by 69% compared to 1996 and CO2 emissions were reduced by 98%. The simulations of the object were performed and verified based on the measured data.
CIM And CIM Platform Practical Use in China Review
Authors: Mozuriunaite Skirmante , Haiyan Gu 
Published: December 2021

AbstractCity Information Modelling (CIM) is becoming an important base model of Smart City and Digital Twin City, which can realise intelligent city design and management. Lately, CIM has become the focuses of urban planning and design studies. Under the influence of building information model (BIM), smart city and three-dimensional city simulation, city-level information modelling, CIM connects different BIM levels integrates the spatial expression effect of GIS. This review introduces CIM development from using generating procedures, such as rules and typological processes, to analyse urban scenarios to form the city full information scene through the integration of BIM, GIS, and IoT. The paper also overviews the technical path of construction with CIM implementation, problems existing in the current practice of CIM technology, including all information of digital and lightweight data, scene fast calls and data standard uniformity, etc. Following the latest CIM progress, the paper puts forward some ways to realise the effective use of CIM in urban planning and design. The further review focuses on big data security, publicity, urban design element and CIM platform practical use in China.
Exploratory Finite Element Analysis of Monolithic Toughened Glass Panes Subjected to Hard-Body Impact
Authors: Kozłowski Marcin , Zemła Kinga , Kosmal Magda 
Published: December 2021

Abstract
The paper reports the results of an extensive experimental campaign, in which simply supported toughened glass samples with dimensions of 500 × 360 mm2 and three thicknesses (6, 8 and 10 mm) were subjected to hard-body impact. A steel ball (4.11 kg) was released from different drop heights, starting from 10 cm above the sample and increasing by 10 cm in each step until glass breakage occurred. In this way, for all samples a critical drop height (causing fracture of glass) was determined. Experiments were carried out for 35 samples for each thickness; thus 105 samples were tested in total. A 3D numerical model of the experimental setup was developed using the commercial finite element analysis (FEA) software ABAQUS and Implicit Dynamic solver. The numerical study was aimed at numerical reproduction of the experiments and determination of the maximum principal stress in the glass that occurs during the impact. To reduce the number of FEs and increase the computational efficiency of the simulations, only a quarter of the nominal geometry with appropriate boundary conditions were modelled. The simulations were performed for a given weight of the steel impactor, glass thickness and the corresponding critical/breaking drop height found in the experimental campaign. In this way, an impact strength of the toughened glass was retrospectively evaluated. The simulations were used to investigate the impact history in terms of stress in glass, acceleration and velocity. Moreover, the resulting history of impact force was determined.
Architectural Wayfinding Design as a Means of Communication in Environmental Perception
Authors: Cheirchanteri Georgia 
Published: December 2021

Abstract
From prehistoric times, Signage was a means of visual communication helping people reaching out different environments (internal or external). Long before paper’s invention, humans made marks on objects, such as cave walls, in the surrounding environment, for their communication. As cities grew and mobility increased, making the built environment more complex, people requirements for better information concerning spatial perception and navigation, also grew. Thus, the necessity of proactive, systematically planned, visual unified signage and wayfinding programs have been emerged. Wayfinding is how people get from one location to another, including their information-gathering and decision-making processes for orientation and movement through space. Wayfinding design builds on research in cognition and environmental psychology to design built spaces and products that facilitate the movement of people through urban settings and individual buildings. Despite its demonstrated importance to building use, costs, and safety, wayfinding receives less than its due in planning, research and building evaluation. The aim of this study is to provide a “clear” reading of the environmental space and city’s routes to the users, through architectural wayfindig design. Also, architectural wayfinding design addresses built components, including spatial planning, articulation of form-giving features, circulation systems and environmental communication.
Low-Cost Geographic Information System for Municipal Road Signs Management in Depopulated and Low-Density Areas
Authors: Gonçalves Olga , Gonçalves Jorge , Chmielewski Jacek , Olenkowicz-Trempała Paulina 
Published: December 2021

Abstract
The current national and regional economical conjuncture in many countries, requires a sustainable management of different urban infrastructures, including road signs. From the set of possible solutions to improve the existing infrastructure’s management, analysis and spatial representation, Geographic Information Systems (GIS) have proved to be an essential tool for the functional competencies of local administration (municipalities), managers of municipal road networks. This study presents a framework of existing national regulations on road signs, as well as the shortcomings in the definition of methodologies for GIS-based management systems implementation. The paper continues with the critical assumptions considered in their definition and the municipalities specific competences needed for their implementation. A low-cost methodology is proposed and applied to a case study in a small Portuguese village: Belmonte. The results have shown the potential of these low-cost systems, revealing relevant time and economical gains, providing municipalities with fundamental information for the definition of realistic and well-founded strategic plans and budgets, and allowing better information to their citizens. The gathered information can help in inventory, inspections, maintenance and replacement allowing detailed reports and geo-referenced electronic database and maps of a municipality's road signs at reasonable costs. These maps and reports are the starting point to forecast the projected lifespan of the municipality's signage allowing more accurate project sign management budgets for future years. Aspects that need further development in order to improve the proposed system are also addressed.