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Artykuły w czasopismach na temat „Environmental Floor”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

RASHID, T., H. VONVILLE, I. HASAN, and K. W. GAREY. "Mechanisms for floor surfaces or environmental ground contamination to cause human infection: a systematic review." Epidemiology and Infection 145, no. 2 (2016): 347–57. http://dx.doi.org/10.1017/s0950268816002193.

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SUMMARYShoe soles have been shown to transfer infectious microorganisms to floor and ground surfaces. However, the possible modes of transmission of infectious agents from floors or ground surfaces to human contact for infection have not been systematically reviewed. A systematic review was performed on articles indexed in medical databases (Medline, EMBASE, PubMed) using a pre-defined search strategy and MeSH terms (date of last search: 15 March 2016). Only primary research studies in English that investigated the transmission dynamics of infectious microorganisms from floor or ground surface

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2

Leonardi, Federica, Teresa Botti, Giuliana Buresti, et al. "Radon Spatial Variations in University’s Buildings Located in an Italian Karst Region." Atmosphere 12, no. 8 (2021): 1048. http://dx.doi.org/10.3390/atmos12081048.

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In the framework of a collaboration between INAIL and University of Salento, an indoor radon survey in 54 buildings belonging to the UniSalento University (Southeast Italy) was carried out. The monitored buildings differ by type, construction period, materials, etc., and are located in an area with a morphology characterized mainly by marls, calcareous marls, and calcarenites (karst area). The sample of the survey includes 963 rooms at different floors: it consists in rooms mainly located at ground floor (67%), first floor (12%), and below ground (12%). SSNTD passive dosimeters measured the av

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Monforton, Gerard R., Murray C. Temple, and Gerhard W. H. Wolf. "An experimental and theoretical evaluation of a floor truss system." Canadian Journal of Civil Engineering 20, no. 3 (1993): 407–21. http://dx.doi.org/10.1139/l93-056.

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Floor joists consisting of 38 × 89 mm top and bottom chords connected by galvanized steel V webs are often used in the construction of low-rise buildings where long spans are required. An experimental and theoretical program was undertaken to evaluate the performance of such joists when used in conjunction with plywood sheathing attached to the top chord to form a truss floor system. A finite-element analysis procedure for sandwich beams with faces of unequal thickness was adapted in order to predict the load-deflection curves of full-scale floor systems. The experimental program involved the

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Smith, Ian, and Ying Hei Chui. "Construction methods for minimizing vibration levels in floors with lumber joists." Canadian Journal of Civil Engineering 19, no. 5 (1992): 833–41. http://dx.doi.org/10.1139/l92-094.

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The National Building Code of Canada 1990 specifies the allowable spans for lumber floor joists that are expected to lead to satisfactory vibrational behaviour. This paper discusses construction methods that improve the floor behaviour once the flooring and joists appropriate to a particular building occupancy have been selected. Laboratory tests on full-size floors demonstrate that adding between-joists bridging and supporting all four floor edges significantly improves the overall vibrational performance of wood floors. Bridging consisting of solid blocking glued to the underside of the floo

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5

Peng, Wenjie, Daizhong Su, Shuyi Wang, and Anton Ianakiev. "Environmentally Sustainable Raised Access Flooring Product Development." Buildings 14, no. 6 (2024): 1849. http://dx.doi.org/10.3390/buildings14061849.

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Raised access floors are nowadays widely used in buildings. A novel raised access flooring product is developed by this research, with a set of sustainable features, including less environmental impact and high strength. Its floor panels are made of polyurethane (PU) reinforced with glass fibre, which is light-weight and fire-resistant, replacing the traditional floor panel materials, and the panels are supported by simplified steel stringers to reinforce the strength of the flooring product. Instead of the conventional sandwich design consisting of a core material encapsulated by outer layers

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6

Ma, Hongwei, Anlian Wang, Jialong Ji, Yan Liu, and Meng Gong. "Experimental study of the behavior of box floor with orthogonal ribbed beams by poplar LVL." BioResources 18, no. 1 (2022): 255–71. http://dx.doi.org/10.15376/biores.18.1.255-271.

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Considering the unidirectional layout of ribbed beams and simple structure in traditional wooden floors, it is not suitable for large-span wooden buildings. Six groups of floor ribbed beams with plane size of 4.8 m×3.6 m were designed and manufactured by using poplar laminated veneer lumber (LVL), among which five floor specimens were orthogonal ribbed beams and the other one was traditional. A bending performance test was carried out to analyze the influence of different ribbed beam spacing and high span ratio on the mechanical performance of poplar LVL orthogonal ribbed beams, and its result

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7

Raczkiewicz, Wioletta, and Artur Wójcicki. "Impact of reinforcement on shrinkage in the concrete floors of a residential building." Science and Engineering of Composite Materials 27, no. 1 (2020): 317–24. http://dx.doi.org/10.1515/secm-2020-0036.

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AbstractThe type of floor in a building object results from the serviceability requirements, technical possibilities, and costs of its implementation. Concrete screeds constituting the structural layer of the floor can be made without reinforcement, with dispersed reinforcement, or reinforced with meshes of various materials. Due to the large surface dimensions, concrete screeds are susceptible to scratches as a result of occurring strains, service loads and unevenness of the floor. There are detailed recommendations on how to make floors, and on the materials used. However, the conditions in

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8

Dzhuguryan, Tygran, and Zofia Jóźwiak. "Specific approach to select of freight elevators for multi-floor manufacturing." AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 19, no. 12 (2018): 1059–62. http://dx.doi.org/10.24136/atest.2018.550.

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The application of multi-floor cellular manufacturing in huge cities is related to the rational use of urban areas and the solution of traffic problems. The select of freight elevators is a vital part of decision process in the multi-floor manufacturing which allows the enterprise to select equipment considering technical, economic, environmental, social and other factors. This paper presents the specific approach to the selection of freight elevators for the multi-floor cellular manufacturing. A model for freight elevators selection is proposed considering the manufacturing performance, the c

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9

Bondar, A. V., and V. M. Zagika. "MODERN TECHNOLOGIES OF PREFABRICATED-MONOLITIC FLOORS FOR RECONSTRUCTION OF PUBLIC BUILDINGS." Modern technology, materials and design in construction 29, no. 2 (2021): 35–44. http://dx.doi.org/10.31649/2311-1429-2020-2-35-44.

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During the reconstruction of the school building in Khmilnyk, Vinnytsia region, in order to create an inclusive resource center, it is necessary to replace the existing wooden floor. The floor of a building is a horizontal load-bearing structure created between two vertical rooms to separate them in height. At the same time, it serves as a floor for the upper room and as a ceiling for the lower room. Therefore, it is important to select a more modern reliable version of the floor, the technology of which will meet the limitations and requirements that arise in the reconstruction of public buil

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10

Allen, D. E. "Floor vibrations from aerobics." Canadian Journal of Civil Engineering 17, no. 5 (1990): 771–87. http://dx.doi.org/10.1139/l90-090.

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Recent vibration problems with floors used for aerobics have shown the need for better guidelines for structural design and evaluation. Such guidelines were introduced for the first time in the Supplement to the 1985 National Building Code (NBC), but more recent experience with one particular floor has shown the need for some improvements to these guidelines. The paper describes the investigation of the floor and the use of the floor to estimate the loading function for aerobics, and recommends changes to the NBC design criteria. The paper provides guidance on estimating parameters used in the

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11

Felicioni, L., M. Jiránek, and A. Lupíšek. "Environmental assessment of several scenarios of active and passive radon control measures." Journal of Physics: Conference Series 2600, no. 15 (2023): 152018. http://dx.doi.org/10.1088/1742-6596/2600/15/152018.

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Abstract In buildings, radon gas mainly enters through cracks in the floors and gaps around pipes and cables in contact with the soil, thereby increasing indoor radon levels. Like other building components or systems, the radon control measures have embodied and operational environmental impacts that have been neglected to a certain extent. While many actions have been taken recently to achieve carbon-neutral yet energy-efficient buildings, even radon control measures should be investigated not only for protecting human health since radon gas is the major source of ionising radiation for human

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12

Ros-Dosdá, Teresa, Irina Celades, Laura Vilalta, Pere Fullana-i-Palmer, and Eliseo Monfort. "Environmental comparison of indoor floor coverings." Science of The Total Environment 693 (November 2019): 133519. http://dx.doi.org/10.1016/j.scitotenv.2019.07.325.

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13

Zhang, Jiawei, Tian Su, Xin Leng, et al. "Preparation and electrothermal properties of graphene electrothermal composite floor." BioResources 18, no. 4 (2023): 6929–43. http://dx.doi.org/10.15376/biores.18.4.6929-6943.

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Conventional electrothermal floors suffer from low heating efficiency, uneven temperature distribution across the floor surface, local overheating, and severe heat accumulation. In order to improve the heating performance, an electrothermal composite floor with graphene as the heating layer was fabricated. The relationship between time and temperature rise, the relationship between power density and temperature rise, running stability, and surface temperature distribution were investigated and analyzed after heating, and the surface temperature profiles were simulated in two and three dimensio

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14

Miskovic, Z., A. Pavic, and P. Reynolds. "Effects of full-height nonstructural partitions on modal properties of two nominally identical building floors." Canadian Journal of Civil Engineering 36, no. 7 (2009): 1121–32. http://dx.doi.org/10.1139/l09-055.

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This paper presents a combined experimental and numerical investigation of the modal properties of two full-scale and nominally identical steel–concrete composite floors. The floors were one above the other in the same fully operational multi-storey building. Both floors accommodated open-plan as well as partitioned offices. Multi-input-multi-output (MIMO) modal testing was employed to measure as-built modal properties of both floors. It was found that the two nominally identical floors had different modal characteristics, likely due to the different arrangement of partitions in the floor. It

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15

Byantarsih Widyaningrum and Christine J K Ekawati. "Determinants of Diarrhea Disease Environmental Conditions in Manutapen Village Kupang City." JOURNAL of HEALTH SCIENCE REVIEW 1, no. 1 (2023): 1–8. http://dx.doi.org/10.70519/jhsr.v1i1.2.

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One of the environmental-based diseases that is still often found in developing countries is diarrheal disease. Diarrhea can also cause death. Limited toilet facilities in Manutapen Village, Kupang City could be one of the causes of the high number of diarrhea cases in the area. This type of research is descriptive with a survey method. Cross sectional sampling. The data taken is primary and secondary data. The results of the study showed that as many as 87.10% of diarrhea sufferers were > 5 years old, the distance is cubluk / resapans in toilets for diarrhea sufferers < 10 meters from t

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16

Foschi, Ricardo O., and Ashwani Gupta. "Reliability of floors under impact vibration." Canadian Journal of Civil Engineering 14, no. 5 (1987): 683–89. http://dx.doi.org/10.1139/l87-098.

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Uncomfortable vibrations is a serviceability limit state that must be taken into account in the design of residential floors. A finite strip analysis of a floor system, previously developed for static loads, is extended to dynamic problems. This analysis is applied to the problem of transient vibrations set up by a footfall impact, considering two persons on the floor: an impacter and a receiver. The floor response at the receiver's location is utilized in conjunction with human vibration tolerance data to determine a floor dynamic rating. The variability in this rating is assessed as a functi

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17

Caverson, Robert G., Peter Waldron, and Martin S. Williams. "Review of vibration guidelines for suspended concrete slabs." Canadian Journal of Civil Engineering 21, no. 6 (1994): 931–38. http://dx.doi.org/10.1139/l94-099.

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As spans and slenderness ratios increase, suspended concrete floor slabs are becoming increasingly susceptible to vibration problems. The dynamic behaviour of such floors is currently poorly understood, and there are no established design procedures to deal with vibrations. This paper reviews the existing vibration guidelines for all types of floors and discusses how they may be applied to suspended concrete slabs. Results from a program of field testing of concrete floors are presented and compared with a number of these guidelines. Key words: vibration, concrete, floor slabs, prestressing, n

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18

Papilaya, Bercomien Juliet, and Rajab Rajab. "Pertumbuhan Beberapa Galur Ayam Lokal Fase Starter Yang Dipelihara Pada Kandang Slat Dan Litter." Jurnal Ilmiah Fillia Cendekia 8, no. 2 (2023): 123. http://dx.doi.org/10.32503/fillia.v8i2.4065.

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Animals with genetic abilities along with the environment will express different phenotypes (P = G + L + GL). The research was conducted for 1 month in the Amahusu people's livestock business, Ambon City. The livestock used were the starter phase, totaling 72 heads aged 3 weeks with an average initial weight of 80 grams. Tools used: digital scales, places to eat, drink, cages, hygrometer, thermometer. Cages used: 12 floors of slat and 12 floors of litter measuring 50 x 50 M, drinking water, litter (wood pulp), commercial feed. The research method is an experimental method using a completely ra

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19

Lee, Jong-Won, Deuk-Woo Kim, Seung-Eon Lee, and Jae-Weon Jeong. "Indoor Environmental Quality Survey in Research Institute: A Floor-by-Floor Analysis." Sustainability 13, no. 24 (2021): 14067. http://dx.doi.org/10.3390/su132414067.

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Comprehensively monitoring indoor environmental quality (IEQ) parameters and their dynamic relations is essential to ensure improved productivity and a healthy environment for building occupants. Although IEQ significantly influences working efficiency, studies addressing this aspect with researchers in institutes as the focal point are limited. Thus, this study employed drill-down analyses, such as floor-by-floor and building-by-building examinations and used an occupant IEQ survey approach to evaluate working conditions in research buildings. This study systematically and objectively assesse

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20

Hsu, Yao Wen, and Kai Way Li. "The Measurements of Friction Coefficient on Ramps among Different Floor Materials." Applied Mechanics and Materials 303-306 (February 2013): 790–93. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.790.

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This study investigates the influences of slopes on objective friction measurements of different floor materials. It is known that a person is more likely to slip when walking on a slope than when walking on a level surface. In term of the prevention of falls for elders and MMH (manual material handling) workers, slope is more commonly in the design of barrier-free environments. However, it could be a potential environmental risk of slip accidents. The environmental problems were generally caused by poor floor slipperiness. The coefficient of friction (COF) is one of important objective indexe

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21

Hempel, Sabrina, David Janke, Bernd Losand, et al. "Comparison of Methane Emission Patterns from Dairy Housings with Solid and Slatted Floors at Two Locations." Agronomy 12, no. 2 (2022): 381. http://dx.doi.org/10.3390/agronomy12020381.

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Methane (CH4) emissions from dairy husbandry are a hot topic in the context of active climate protection, where housing systems with slatted floors and slurry storage inside are in general expected to emit more than systems with solid floors. There are multiple factors, including climate conditions, that modulate the emission pattern. In this study, we investigated interrelations between CH4 emission patterns and climate conditions as well as differences between farm locations versus floor effects. We considered three data sets with 265, 264 and 275 hourly emission values from two housing syst

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22

Ajees T, Rishok R, Binish C, and P. Baby Shola. "Automated Smart Floor Cleaner for Reducing Human Efforts." Asian Journal of Applied Science and Technology 07, no. 02 (2023): 128–35. http://dx.doi.org/10.38177/ajast.2023.7215.

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The main goal of the "Floor Cleaning Machine" is to create an automated floor cleaning system that can effectively clean a variety of floor surfaces without the assistance of a human. With its sophisticated sensors, motors, and cleaning systems, the machine will be able to detect and remove dirt and debris from a variety of surfaces, including carpets, tiles, hardwood floors, and more. The suggested system will be electrically driven and run on a series of pre-defined cleaning patterns that may be altered to satisfy particular cleaning needs. This study is anticipated to offer a time- and mone

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23

Su, Xiangyu, Jing Chen, Yan Liu, Xufeng Sun, Gong Meng, and Haida Wang. "Experimental study on flexural behavior of box floors with orthogonal rib beams made of poplar laminated veneer lumber." BioResources 17, no. 4 (2022): 6019–35. http://dx.doi.org/10.15376/biores.17.4.6019-6035.

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This study examined the flexural behavior of the poplar laminated veneer lumber (LVL) box floor with orthogonal rib beams. Four 3.6 m × 4.8 m box floor samples made of poplar LVL orthogonal rib beams and oriented strand board (OSB) plates were tested under vertical uniform loading, from which the bearing capacity, stiffness, and failure characteristics were analyzed. There was no damage in all box floor samples at the normal service load of 2.5 kN/m2, and the maximum deflection was far less than the allowable value. When the maximum load was applied, the load-displacement curve of each floor s

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24

Foschi, Ricardo O., Greg A. Neumann, Felix Yao, and Bryan Folz. "Floor vibration due to occupants and reliability-based design guidelines." Canadian Journal of Civil Engineering 22, no. 3 (1995): 471–79. http://dx.doi.org/10.1139/l95-055.

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Lightweight floors for residential or commercial applications may exhibit annoying levels of vibration under occupancy loading. This paper presents an experimental and analytical study of the vibrational response of wood floors to impact produced by occupants. The results show that, for the analysis of this type of floors, it is necessary to consider the coupled dynamical system of floor and occupants. It is also shown that occupants may be modelled with simple oscillators, and that the dynamic analysis of the coupled system can produce close agreement with tests. Acceptability criteria are us

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25

Horakova, Anna, Alena Kohoutkova, and Iva Broukalova. "Multicriteria Optimization of Reinforced Concrete Floor Slabs." Key Engineering Materials 1011 (May 14, 2025): 67–79. https://doi.org/10.4028/p-akez8o.

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This paper focuses on the multicriteria software optimization of reinforced concrete floor slabs, especially in terms of environmental impacts and cost. The economic aspect is essential to ensure that the environmentally friendly design option is also cost effective. The durability of the structure is also considered as it significantly affects its overall environmental footprint. Increased durability reduces the frequency of repairs and extends the service life before demolition and reconstruction are required, thereby spreading the environmental impacts of the initial construction over a lon

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26

Bai, Li, Zijian He, Wanyue Chen, and Yujie Wang. "Distribution characteristics and source analysis of metal elements in indoor PM2.5 in high-rise buildings during heating season in Northeast China." Indoor and Built Environment 29, no. 8 (2019): 1087–100. http://dx.doi.org/10.1177/1420326x19875495.

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This study aims to investigate whether sources of metal elements in fine particulate matter and their distribution in high-rise buildings vary with floor levels. Inductively coupled plasma emission spectrometry (ICP-AES) was used to determine the contents of 11 common heavy metals in PM2.5 samples collected from different floors of a high-rise residential building in Northeast China during the heating season. The sources of metal elements in PM2.5 samples on different floors were analysed by the enrichment factor method and the principal component analysis method. The concentration of metal el

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27

Demertzi, Martha, Ana Garrido, Ana Cláudia Dias, and Luis Arroja. "Environmental performance of a cork floating floor." Materials & Design 82 (October 2015): 317–25. http://dx.doi.org/10.1016/j.matdes.2014.12.055.

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Munoz-Gutierrez, K. M., R. A. Canales, K. A. Reynolds, and M. P. Verhougstraete. "Floor and environmental contamination during glove disposal." Journal of Hospital Infection 101, no. 3 (2019): 347–53. http://dx.doi.org/10.1016/j.jhin.2018.10.015.

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Yang, Chunmei, Bo Guan, Zihao Zhang, Jiawei Zhang, Bo Xue, and Xinchi Tian. "The establishment and numerical calculation of a heat transfer model of a graphene heating energy storage floor." BioResources 18, no. 1 (2023): 1948–70. http://dx.doi.org/10.15376/biores.18.1.1948-1970.

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A new type of graphene electric heating solid wood composite floor and its heat transfer model were designed to enable users to have a higher-quality and safe living experience. A heat transfer mathematical model was developed. The structural entity of the composite graphene heating floor was drawn using Solidworks software. The floor structure was abstracted as a two-dimensional model using MATLAB software to obtain the temperature rise curves and corresponding time of each group. Then, six groups of the best data were selected from the experimental data to simulate the heat storage capacity

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Crews-Stowe, Caitlin, Elizabeth Lambert, Lori Berthelot, and Katherine Baumgarten. "Exploring the relationship between the reduction of floor microbial burden and the impact on healthcare-associated infections." Antimicrobial Stewardship & Healthcare Epidemiology 3, S2 (2023): s73—s74. http://dx.doi.org/10.1017/ash.2023.324.

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Background: Healthcare floors are a vehicle and/or source for potential pathogens that cause healthcare associated infections, and hospital floors are often heavily contaminated with pathogens such as Clostridioides difficile and methicillin-resistant Staphylococcus aureus. However, definitive research linking reductions in floor burden to reductions in HAIs has not yet been established. We sought to evaluate emerging technology for continuous disinfection and its potential impact on HAIs. This study was designed to explore the potential relationship between the reduction of microbial burden o

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31

Rainer, J. H., and J. C. Swallow. "Dynamic behaviour of a gymnasium floor." Canadian Journal of Civil Engineering 13, no. 3 (1986): 270–77. http://dx.doi.org/10.1139/l86-039.

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Ten mode shapes, natural frequencies, and modal damping values have been measured for a steel-joist concrete-slab floor spanning 32.1 m. From ambient vibrations and steady-state shaker tests the frequency of the fundamental mode was determined to be 3.5 Hz, and the modal damping ratio to be approximately 1% of critical. A comparison of vibration criteria in Appendix G of CAN3-S16.1-M84 confirms satisfactory performance for walking, but for other rhythmic exercises disturbing vibrations developed. These occurred primarily at the forcing frequency of the exercises and not at floor resonance freq

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KRIPAK, Volodymyr, Vira KOLIAKOVA, and Маksim GAIDAI. "INVESTIGATION OF THE EFFECTIVENESS OF REINFORCED CONCRETE MONOLITHIC OVERLAP WITH HOLLOW LINERS." Building constructions. Theory and Practice, no. 9 (December 28, 2021): 15–29. http://dx.doi.org/10.32347/2522-4182.9.2021.15-29.

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The use of floors with hollow linersis one of the possible ways to reduce the materialconsumption and weight of buildings made ofmonolithic concrete, almost without reducing theirreliability. Reducing the weight of structures is animportant advantage in the construction of facilities in seismically active regions.However, the introduction of such plates inconstruction is constrained by the lack of theoretical research and the necessary regulatory framework and experience in designing these structures.The article considers the problems of calculations and construction of a lightweight monosumme

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Qi, Jiarui, Feifan Yu, Liwei Wu, and Li Xv. "Experimental and Design Parametric Study of a Novel Grouted Square Steel Tube Upper Chord–Concrete Composite Floor." Buildings 13, no. 10 (2023): 2447. http://dx.doi.org/10.3390/buildings13102447.

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A novel composite floor consisting of an upper chord of a grouted square steel tube truss and a lower chord of a reinforced concrete slab is proposed to address existing problems with precast composite floors, such as a complex construction process, high cost, significant resource consumption, and severe environmental pollution. Sixteen-point loading tests were carried out on five simply supported one-way slabs to simulate the stress state of the floor under a uniform load and to investigate the stiffness, cracking moment, load-carrying capacity, and failure mode of the composite floor system.

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Valencia-Barba, Yovanna Elena, José Manuel Gómez-Soberón, María Consolación Gómez-Soberón, and Fernando López-Gayarre. "An Epitome of Building Floor Systems by Means of LCA Criteria." Sustainability 12, no. 13 (2020): 5442. http://dx.doi.org/10.3390/su12135442.

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Studies of the elements that make up the structure of a building have generally focused on topics related to their physical and structural capacities. Although research has been carried out into environmental impact during the life cycle stages, the environmental profile is far from established. This research aims to reduce the gap in the knowledge of this subject, offering useful information to professionals in the construction industry, which will enable them to consider environmental aspects when choosing the best construction systems. The present study applies the methodology of the life c

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Pernica, G. "Effect of architectural components on the dynamic properties of a long-span floor system." Canadian Journal of Civil Engineering 14, no. 4 (1987): 461–67. http://dx.doi.org/10.1139/l87-070.

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Vibration measurements were taken to determine the effects of architectural components on the dynamic properties (modal frequency, modal damping ratio, and mode shape) of a long-span floor system. The floor was located above a two-storey gymnasium in a recently constructed three-storey elementary school. The dynamic properties of the bare floor system were measured during the construction phase, immediately after the main structural components and the exterior masonry walls were in place. Six months later, with construction completed and the school ready for occupancy, the properties of the fi

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Nilimaa, Jonny, and Vasiola Zhaka. "Material and Environmental Aspects of Concrete Flooring in Cold Climate." Construction Materials 3, no. 2 (2023): 180–201. http://dx.doi.org/10.3390/constrmater3020012.

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Dehydration of concrete floor slabs is a critical step to ensure that the flooring material adheres properly and that there is no moisture-related damage to the floor after installation. Dehydration in a cold climate is often a slow process, which can have a big impact on the overall duration of the construction project, and corresponding measures are often taken to accelerate the drying process, especially in constructions exposed to a cold climate. One common method, typically used to accelerate dehydration in cold weather, is to introduce internal heating cables into the slab. This method r

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Khaday, Samsiya, Kai-Way Li, Lu Peng, and Ching-Chung Chen. "Relationship between Friction Coefficient and Surface Roughness of Stone and Ceramic Floors." Coatings 11, no. 10 (2021): 1254. http://dx.doi.org/10.3390/coatings11101254.

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Slips and falls are common occupational incidents worldwide. The friction on a floor surface is one of the critical environmental factors affecting the risk of a slip. In this research, we conducted friction measurements on stone and ceramic floor tiles under dry, wet, and water–detergent (WD) solution covered conditions using a horizontal pull slip meter (HPS). Our purposes were to quantify the slip resistance of commonly used stone and ceramic floors under different surface conditions and to validate the curvilinear relationship between the coefficient of friction (COF) and surface roughness

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Ding, Grace, and Perry Forsythe. "A comparative study of floor construction on sloping sites: an analysis of cumulative energy demand and greenhouse gas emissions." Construction Economics and Building 16, no. 1 (2016): 33–49. http://dx.doi.org/10.5130/ajceb.v16i1.4813.

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In order to make environmentally aware decisions, there is growing interest in the comparative energy and greenhouse gas (GHG) performance of competing construction methods. Little research has been done concerning competing ground floor construction methods, especially given different site variables, such as slope and soil type. A life cycle assessment approach was adopted to analyse environmental impacts, including cumulative energy demand and GHG emissions for detached housing construction in Australia. Data was drawn from 24 case study housing projects, including 12 reinforced concrete and

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Deja, Agnieszka, and Tygran Dzhuguryan. "Environmental Sustainable Waste Management for a City Multi-Floor Manufacturing Cluster." System Safety: Human - Technical Facility - Environment 1, no. 1 (2019): 457–64. http://dx.doi.org/10.2478/czoto-2019-0059.

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AbstractA multi-floor manufacturing in residential districts of huge city promotes decongestion of urban traffic and satisfy the population’s demand for essential goods. City manufacturing and its supply chain entail several challenges related to the sustainable development of a large agglomeration. Environmental problems impose significant constraints on such manufacturing activities and production waste in the urban environment poses a real problem that needs to be addressed by special research. This paper discusses integrated sustainable production waste management for a city multi-floor ma

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HIROTA, Tomohito, Manabu TANAKA, Tsuyoshi MURAKAMI, Atsuo HIRAMITSU, Hiroshi SATO, and Tetsumi SATO. "EFFECT OF FLOOR END AND SUPPORTING LEG POSITION OF FLOATING FLOOR OF WOOD FRAME CONSTLUCTION FLOOR ON HEAVY-WEIGHT FLOOR IMPACT SOUND PRESSURE LEVEL." Journal of Environmental Engineering (Transactions of AIJ) 81, no. 719 (2016): 41–48. http://dx.doi.org/10.3130/aije.81.41.

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Setareh, Mehdi. "Floor vibration control using semi-active tuned mass dampers." Canadian Journal of Civil Engineering 29, no. 1 (2002): 76–84. http://dx.doi.org/10.1139/l01-063.

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This paper discusses the application of a new class of semi-active tuned mass dampers, called ground-hook tuned mass dampers (GHTMD), for the reduction of floor vibrations due to human movements. The TMD introduced uses a continuously variable semi-active damper (ground-hook damper) to achieve reduction in the floor acceleration. Here, the GHTMD is applied to a single degree of freedom system representative of building floors. The GHTMD design parameters are defined in terms of non-dimensional values. The optimum values of these parameters are found based on the minimization of the acceleratio

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Shapchenkova, Olga A., Elena A. Kukavskaya, and Pavel Y. Groisman. "Fire-Induced Changes in Geochemical Elements of Forest Floor in Southern Siberia." Fire 7, no. 7 (2024): 243. http://dx.doi.org/10.3390/fire7070243.

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Wildfires significantly influence the environmental distribution of various elements through their fire-induced input and mobilization, yet little is known about their effects on the forest floor in Siberian forests. The present study evaluated the effects of spring wildfires of various severities on the levels of major and minor (Ca, Al, Fe, S, Mg, K, Na, Mn, P, Ti, Ba, and Sr) trace and ultra-trace (B, Co, Cr, Cu, Ni, Se, V, Zn, Pb, As, La, Sn, Sc, Sb, Be, Bi, Hg, Li, Mo, and Cd) elements in the forest floors of Siberian forests. The forest floor (Oi layer) samples were collected immediately

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Schlener, Susan, and Kathryn Worrilow. "The Positive Impact of a Novel Air Purification Technology on Environmental and Clinical Outcomes." Innovation in Aging 5, Supplement_1 (2021): 138–39. http://dx.doi.org/10.1093/geroni/igab046.535.

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Abstract Reducing sources of illness improves resident care. An advanced air purification technology (AAPT) was designed to destroy the DNA and RNA of all bacteria, fungi and viruses, rendering them non-infectious and to remediate volatile organic compounds (VOCs). This study compares the biological, fungal and VOC loading using the AAPT to standard high efficiency particulate air (HEPA) filtration. It was hypothesized that the AAPT would be associated with reductions in airborne and surface pathogens, VOCs and improved clinical metrics. A control floor with HEPA filtration and study floor wit

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Hinz, Aaron, Jason A. Moggridge, Hanna Ke, et al. "Predicting COVID-19 cases across a large university campus using built environment surveillance." Journal of the Association of Medical Microbiology and Infectious Disease Canada 9, no. 4 (2024): 284–93. https://doi.org/10.3138/jammi-2024-0002.

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Background: Environmental surveillance of SARS-CoV-2 via wastewater has become an invaluable tool for population-level surveillance. Built environment sampling may provide complementary spatially refined detection for viral surveillance in congregate settings such as universities. Methods: We conducted a prospective environmental surveillance study at the University of Ottawa between September 2021 and April 2022. Floor surface samples were collected twice weekly from six university buildings and analyzed for the presence of SARS-CoV-2 using quantitative PCR. A Poisson regression was used to m

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Choi, Hyun Jung, Kyoung Woo Kim, Jun Oh Yeon, Kwan Seop Yang, and Kyung Ho Kim. "Performance Evaluation of Dry Double Floor-System Using Recycled Materials." Advanced Materials Research 689 (May 2013): 246–49. http://dx.doi.org/10.4028/www.scientific.net/amr.689.246.

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Typical wet floor systems applied in most Korean housing units require refurbishing as they have a shorter lifespan than buildings. Construction waste, yielded by such refurbishing, can cause social problems such as environmental issues. In order to reduce such problems, a dry double floor system had been developed with the use of recycled materials. In this study, we evaluated performances of a developed double floor system, such as impact sound and radiant heat. As a result, floor impact sound was around 40 dB for light-weight types and around 48 dB for heavy-weight types, respectively. More

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Deng, Francis, and Zhang Hong. "Focus on Sustainable Bearing Structures." Applied Mechanics and Materials 405-408 (September 2013): 1182–86. http://dx.doi.org/10.4028/www.scientific.net/amm.405-408.1182.

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Targeting at a factor 20 reduction of the environmental load of buildings in 2040, it is necessary and logical to start by reducing the environmental load of the most important aspects of a building. The bearing structure is responsible for the second largest part of the environmental load of the building; the energy consumption is responsible for the greater part, assuming the life span of a building is 75 years (van den Dobbelsteen & van der Linden, 2000)[2]. The bearing structure consists of the foundation, columns, beams, floor and roof structure, and sometimes walls and facades. The h

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Karjalainen, Markku, Hüseyin Emre Ilgın, Lauri Metsäranta, and Markku Norvasuo. "Residents’ Attitudes towards Wooden Facade Renovation and Additional Floor Construction in Finland." International Journal of Environmental Research and Public Health 18, no. 23 (2021): 12316. http://dx.doi.org/10.3390/ijerph182312316.

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To date, studies that provide a comprehensive understanding of residents’ attitudes towards wooden facade renovation and additional floor construction are lacking in the literature. This paper examined these important practices from the perspective of Finnish residents via a questionnaire survey. The 243 responses received highlighted the following: (1) residents’ attitude towards wooden facade renovation and additional floor construction was generally positive; (2) younger and more educated people welcomed these practices more; (3) respondents mostly thought that wooden facade renovation and

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Rossi, R., A. Costa, M. Guarino, F. Laicini, G. Pastorelli, and C. Corino. "Effect of group size-floor space allowance and floor type on growth performance and carcass characteristics of heavy pigs." Journal of Swine Health and Production 16, no. 6 (2008): 304–11. http://dx.doi.org/10.54846/jshap/577.

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Objective: To evaluate the effects of group size-space allowance and floor type on growth performance and carcass characteristics in pigs slaughtered at 160 kg live weight (LW). Materials and methods: (Landrace × Large White) × Duroc pigs (N = 216), averaging 89.8 ± 0.4 kg LW at approximately 6 months of age, were evenly distributed among 18 pens (six pens per room, equal numbers of barrows and gilts per pen). Nine pens provided a low space allowance (LSA; k = 0.033; 1.0 m2 per animal; 126 pigs), and nine pens provided a high space allowance (HSA; k = 0.047; 1.4 m2 per animal; 90 pigs). After

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Korol, Robert M., and K. S. Sivakumaran. "Energy absorption potential of light weight concrete floors." Canadian Journal of Civil Engineering 39, no. 11 (2012): 1193–201. http://dx.doi.org/10.1139/l2012-107.

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This paper investigates the energy absorption potential offered by light weight concrete (LWC) floors, perhaps when a building is poised to collapse from some extreme loading event. It is assumed here that the failure of LWC structural floor slabs would likely result in both break-up and pulverization of the concrete. To estimate the extent to which crushing of large portions of floor slab material would absorb energy, a series of concrete penetration tests employing patch loading was undertaken on scaled down model slabs. Six specimens had free (unconfined) edges, while the other four were co

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O'Neill, Michael J. "Effects of Workspace Design and Environmental Control on Office Workers' Perceptions of Air Quality." Proceedings of the Human Factors Society Annual Meeting 36, no. 11 (1992): 890–94. http://dx.doi.org/10.1518/107118192786750485.

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This paper examines the influence of work space enclosure, individual difference variables (sex, job type), and control over the thermal environment on employee perceptions and satisfaction with air quality. The study population consisted of 200 office workers on five different floors of a single building that used either under-floor mounted air distribution units or a standard HVAC system. The under-floor units permit individual control over volume and direction of airflow in the work space. Four aspects of control were examined: availability of control; perceptions of control; exercised cont

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