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Journal articles on the topic 'Local water aging'

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1

Fischer, Joerg, Reinhold Lang, Patrick Bradler, Paul Freudenthaler, Wolfgang Buchberger, and Susan Mantell. "Global and Local Aging in Differently Stabilized Polypropylenes Exposed to Hot Chlorinated Water with and without Superimposed Mechanical-Environmental Loads." Polymers 11, no. 7 (2019): 1165. http://dx.doi.org/10.3390/polym11071165.

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The influence of chlorinated water on the global and local aging behavior of polypropylene (PP) was investigated for three differently stabilized PP grades consisting of the same PP base polymer. While one of the PP grades contained only a processing stabilizer (PP-S0), the other two were modified with a primary phenolic antioxidant (PP-S1) and a combination of a primary phenolic antioxidant and a hindered amine stabilizer (PP-S3). To study global aging effects, micro-sized specimens were pre-exposed to chlorinated water (5 mg/L free chlorine) at 60 °C for up to 750 h. Over the entire exposure
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Lee, Chi-Yuan, Chia-Hung Chen, Guo-Bin Jung, Shih-Chun Li, and Yi-Zhen Zeng. "Internal Microscopic Diagnosis of Accelerated Aging of Proton Exchange Membrane Water Electrolysis Cell Stack." Micromachines 11, no. 12 (2020): 1078. http://dx.doi.org/10.3390/mi11121078.

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The hydrogen production reaction of the proton exchange membrane (PEM) water electrolysis cell stack is the reverse reaction of the fuel cell, but the water electrolysis operation requires high pressure, and the high pressure decomposes hydrogen molecules, thus aging or causing failure in the water electrolysis cell stack. In addition, there are five important physical parameters (current, voltage, flow, pressure and temperature) inside the water electrolysis cell stack, which can change the performance and shorten the life of the cell stack. However, the present techniques obtain data only by
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Lee, Chi-Yuan, Chia-Hung Chen, Hsian-Chun Chuang, Hsiao-Te Hsieh, and Yen-Chen Chiu. "Long-Acting Real-Time Microscopic Monitoring Inside the Proton Exchange Membrane Water Electrolyzer." Sensors 23, no. 12 (2023): 5595. http://dx.doi.org/10.3390/s23125595.

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The proton exchange membrane water electrolyzer (PEMWE) requires a high operating voltage for hydrogen production to accelerate the decomposition of hydrogen molecules so that the PEMWE ages or fails. According to the prior findings of this R&D team, temperature and voltage can influence the performance or aging of PEMWE. As the PEMWE ages inside, the nonuniform flow distribution results in large temperature differences, current density drops, and runner plate corrosion. The mechanical stress and thermal stress resulting from pressure distribution nonuniformity will induce the local aging
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4

Guan, X. H., C. Shang, S. M. Yu, and G. H. Chen. "Exploratory study on reusing water treatment works sludge to enhance primary sewage treatment." Water Supply 4, no. 1 (2004): 159–64. http://dx.doi.org/10.2166/ws.2004.0019.

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This paper focused on an exploratory study on reusing waste sludge of a local water treatment works (referred to as “alum sludge”) to enhance the removal of both SS (suspended solids) and COD (chemical oxygen demand) from sewage. Laboratory jar tests were conducted using the raw sewage and the alum sludge taken from a local sewage treatment works with variations in sludge dosages, aging times and pH conditions. It has been found that adding alum sludge at dosage around 20 mg/l as Al to the sewage can increase the SS removal by more than 20% and the COD removal by at least 15%, compared with th
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Andrew, J. Jefferson, Vellayaraj Arumugam, and Hom N. Dhakal. "Effect of Intra-Ply Hybrid Patches and Hydrothermal Aging on Local Bending Response of Repaired GFRP Composite Laminates." Molecules 25, no. 10 (2020): 2325. http://dx.doi.org/10.3390/molecules25102325.

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This study investigates the influence of intra-ply hybrid patches and hydrothermal aging on the indentation properties of patch repaired GFRP composites. Fabrics with various proportions of glass and Kevlar fibers were employed as the patches to achieve enhanced mechanical properties by hybridizing Kevlar and glass fibers together. Hydrothermal aging behavior of repaired composite laminates modified with water-resistant glass fibers in the outer layers was further investigated. Specimens were immersed in an environmental chamber containing seawater at temperatures of 30 (ambient), 50, and 70 °
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Qin, Feng, Wenchao Zhang, Mingzi Zhang, et al. "Adipose-Derived Stem Cells Improve the Aging Skin of Nude Mice by Promoting Angiogenesis and Reducing Local Tissue Water." Aesthetic Surgery Journal 41, no. 7 (2021): NP905—NP913. http://dx.doi.org/10.1093/asj/sjab001.

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Abstract Background Adipose-derived stem cells (ASCs) are considered promising cells for skin rejuvenation. However, whether the angiogenetic effect of ASCs plays an important role in the treatment of aging skin and its influence on skin tissue remain elusive. Objectives The aim of this study was to evaluate the effect of ASCs on angiogenesis and local tissue water (LTW) in the aging skin of nude mice. Methods Twelve nude mice were randomly divided into a UVB-induced photoaging group and a natural aging group. After the mouse model had been established, ASCs and phosphate-buffered saline (PBS)
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Zhai, Yan Wei, Chang Wu Liu, and Xina Xian Zhai. "Research on Main Problems and their Countermeasures on Chinese Small Hydropower Development." Applied Mechanics and Materials 295-298 (February 2013): 1889–93. http://dx.doi.org/10.4028/www.scientific.net/amm.295-298.1889.

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The constructions of small hydropower stations play an important role in improving local energy structure, development of corporations, agricultural and environmental melioration, and improving living standard of local people. Thus, studying status at small hydropower stations of China and existed problems in their development has a practical significance. With investigation data, the paper comprehensively analyzed running status of the stations, equipment aging in their development, lower utilized water resources, backward management, and disordered exploitation, etc. Therefore, the authors p
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Kim, Taehyeon, Jihoon Shin, Jinseok Hyung, Kibum Kim, Jayong Koo, and YoonKyung Cha. "Willingness to Pay for Improved Water Supply Services Based on Asset Management: A Contingent Valuation Study in South Korea." Water 13, no. 15 (2021): 2040. http://dx.doi.org/10.3390/w13152040.

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The pressure on water infrastructure has increased due to an increase in the number of aging water pipes. Aging pipes are prone to failure, causing significant financial losses and service disruptions. The increasing number of aged pipes and limited budget for pipe rehabilitation or replacement necessitates water infrastructure asset management to ensure sustainable water supply services. In this study, contingent valuation was used to estimate the willingness to pay (WTP) and value improved water supply services through the implementation of asset management. To estimate the WTP at the indivi
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Bao, Keyu, Rushikesh Padsala, Daniela Thrän, and Bastian Schröter. "Urban Water Demand Simulation in Residential and Non-Residential Buildings Based on a CityGML Data Model." ISPRS International Journal of Geo-Information 9, no. 11 (2020): 642. http://dx.doi.org/10.3390/ijgi9110642.

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Humans’ activities in urban areas put a strain on local water resources. This paper introduces a method to accurately simulate the stress urban water demand in Germany puts on local resources on a single-building level, and scalable to regional levels without loss of detail. The method integrates building geometry, building physics, census, socio-economy and meteorological information to provide a general approach to assessing water demands that also overcome obstacles on data aggregation and processing imposed by data privacy guidelines. Three German counties were used as validation cases to
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Kuipers, Nathan T., Charity L. Sauder, Matthew L. Kearney, and Chester A. Ray. "Interactive effect of aging and local muscle heating on renal vasoconstriction during isometric handgrip." American Journal of Physiology-Renal Physiology 297, no. 2 (2009): F327—F332. http://dx.doi.org/10.1152/ajprenal.00165.2009.

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The purpose of the study was to determine the interactive effect of aging and forearm muscle heating on renal vascular conductance and muscle sympathetic nerve activity (MSNA) during ischemic isometric handgrip. A tube-lined, water-perfused sleeve was used to heat the forearm in 12 young (27 ± 1 yr) and 9 older (63 ± 1 yr) subjects. Ischemic isometric handgrip was performed before and after heating. Muscle temperature (intramuscular thermistor) was 34.3 ± 0.2 and 38.7 ± 0.1°C during normothermia and heating, respectively. At rest, heating had no effect on renal blood velocity (Doppler ultrasou
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Starosielski, Nicole. "Resource Operations of the Ecological Digital Humanities." Publications of the Modern Language Association of America 131, no. 2 (2016): 401–9. http://dx.doi.org/10.1632/pmla.2016.131.2.401.

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Large-scale industrial processes and networks of extraction, slow violences wrought across toxic landscapes, and rapidly shifting atmospheric, oceanic, and hydrologic cycles are altering the conditions of human and nonhuman existence in ways that challenge the limits of existing media technologies. The last of these transformations—the fluctuating distributions of water—is the focus of this essay. Hydrologists are struggling to model and predict the intensities of drought, the changing supply of watersheds, the dispersions of chemicals through streams and rivers, and the failures of aging infr
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Csorba, Péter. "Present tendencies in landscape planning and recognition of the opinion of local citizens on the example of the Tiszazug." Landscape & Environment 15, no. 1 (2021): 1–9. http://dx.doi.org/10.21120/le/15/1/1.

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A survey based on online and face-to face interviews with 104 persons who live in the Tiszazug in the central part of the Great Hungarian Plain. According to the answers the character of the landscape here would change dramatically by disappearance of oxbow lakes, floodplain forests and vineries. The decreasing population and aging of the citizens result in decreasing intensity of landuse, increasing number of abandoned buildings and the attractiveness of the landscape is spoiled by illegal waste disposals and weedy water banks.
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13

Liu, Boyan, Yu Lei, Shitao Sun, and Jie Zhang. "Thompson-Lampard Theorem for Dielectric Characteristics Detection of Generator Stator Insulation." Journal of Physics: Conference Series 2246, no. 1 (2022): 012039. http://dx.doi.org/10.1088/1742-6596/2246/1/012039.

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Abstract The insulation of large generator stator winding will be gradually aging in the long-term operation process. The traditional aging test method cannot accurately locate the non-penetrating local defects of winding. Interdigital electrode is widely used in the fields of environmental monitoring and food detection because of its excellent characteristics such as self-closing and unidirectional penetration, but it has not been popularized in the identification of generator insulation aging. The paper proposes an interdigital electrode structure based on the Thompson-Lampard theory. The el
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14

Pisarevskii, L. A., A. B. Korostelev, A. A. Lipatov, G. A. Filippov, and T. Yu Kin. "Local corrosion of austenitic steels and alloys for heat exchanger tubes of nuclear power stations steam generators." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 75, no. 2 (2019): 227–41. http://dx.doi.org/10.32339/0135-5910-2019-2-227-241.

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Elaboration of modern domestic structural materials with increased corrosion resistance in contact with advanced heatcarriers of future reactor plants is an important problem at development of innovation projects of nuclear power engineering. Heatexchanging tubes are the critical components, which influence on the safety and reliability of steam generators operation. Corrosion properties of non-stabilized nitrogen-containing corrosion resistant steels of austenite class after cold deformation, thermal treatment and long-term thermal aging studied. It was shown, that silicon introducing into ch
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Dziedzic, R. M., and B. W. Karney. "Water user survey on expectations of service in Guelph, ON, Canada." Water Practice and Technology 10, no. 4 (2015): 767–70. http://dx.doi.org/10.2166/wpt.2015.094.

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A survey was developed and conducted with residential water users in the City of Guelph, ON, Canada, with the objective of assessing their awareness, preferences, concerns, motivations, and priorities. The overall goal of this data is to improve the water system on different fronts: infrastructure, conservation programs, communication with users, and long-term strategies. Results highlight the local concerns with water scarcity, currently addressed by conservation programs, as well as water quality, aging infrastructure, and costs. Correlations between user type and answers were seldom found,
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Cao, Bin, Ji-Wei Dong, and Ming-He Chi. "Electrical Breakdown Mechanism of Transformer Oil with Water Impurity: Molecular Dynamics Simulations and First-Principles Calculations." Crystals 11, no. 2 (2021): 123. http://dx.doi.org/10.3390/cryst11020123.

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Water impurity is the essential factor of reducing the insulation performance of transformer oil, which directly determines the operating safety and life of a transformer. Molecular dynamics simulations and first-principles electronic-structure calculations are employed to study the diffusion behavior of water molecules and the electrical breakdown mechanism of transformer oil containing water impurities. The molecular dynamics of an oil-water micro-system model demonstrates that the increase of aging acid concentration will exponentially expedite thermal diffusion of water molecules. Density
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17

Aliberti, Silvana Mirella, Richard H. W. Funk, Elena Ciaglia, et al. "Old, Nonagenarians, and Centenarians in Cilento, Italy and the Association of Lifespan with the Level of Some Physicochemical Elements in Tap Drinking Water." Nutrients 15, no. 1 (2023): 218. http://dx.doi.org/10.3390/nu15010218.

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Longevity, as a complex life-history trait, shares an ontogenetic relationship with other quantitative traits, such as epigenetic and environmental factors. Therefore, it is important to identify environmental factors that may modify the epigenome to establish healthy aging. This study explored the association between tap drinking water and longevity in Cilento, Italy, to understand whether trace elements in local drinking water may have an influence on old, nonagenarian, and centenarian people and promote their health and longevity. Data on population and water sources were collected through
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18

Wuttisin, N., T. Nararatwanchai, and A. Sarikaphuti. "Matrix metalloproteinase-2 inhibition activity of Plukenetia volubilis L. leaves extract for anti-aging application." Food Research 5, no. 4 (2021): 120–26. http://dx.doi.org/10.26656/fr.2017.5(4).077.

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Plukenetia volubilis L. leaves were part of the traditional diets in many countries. P. volubilis leaves were used to make tea and sold as local products in Thailand. There is less information on the composition of P. volubilis leaves. Previous study revealed that roasted leaves extract with hot water showed the highest antioxidant activity and the antioxidant property might be due to the presence of flavonoid. The present study was carried out to determine the quercetin content in P. volubilis leaves extract and evaluate the anti-aging potential activities including MMP-2 inhibition activity
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Masindi, Thivhonali Kenneth, Thomas Gyedu-Ababio, and Lizzy Mpenyana-Monyatsi. "Pollution of Sand River by Wastewater Treatment Works in the Bushbuckridge Local Municipality, South Africa." Pollutants 2, no. 4 (2022): 510–30. http://dx.doi.org/10.3390/pollutants2040033.

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Pollution of water sources is a global issue that primarily affects rural communities that rely on these water sources for domestic purposes on a daily basis. The study’s goal was to determine if the effluent from the Bushbuckridge Municipality’s Waste Water Treatment Works (WWTWs) contributes to the pollution of the Sand River Catchment. The investigation was conducted at two WWTWs, Dwarsloop and Thulamahashe. A questionnaire was used to collect information from participants. Water samples were collected monthly from the treatment plant and Sand River for the determination of physico-chemical
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K. D. Yulianti, R. Priyanto, and H. Nuraini. "Physical Characteristics of Three Types of Muscles with Different Aging Times." Jurnal Ilmu Produksi dan Teknologi Hasil Peternakan 11, no. 2 (2023): 54–59. http://dx.doi.org/10.29244/jipthp.11.2.54-59.

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The demand for premium beef continues to increase along with changes in the lifestyle of upper middle class, increasing tourists and expatriates from abroad. Local cattle usually cannot produce premium beef, but aging can improve the quality of meat. This study aimed to characterize the physical quality (pH, cooking loss, water holding capacity, and tenderness) of bali beef with different aging times. This study used three types of muscles, which is Longissimus dorsi, Gluteus medius, and Semitendinosus from bali beef aged ± 3 years and body weight of ± 350 kg. Samples were aged at cold tempera
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Bill, Tobias, Ruth Acosta, Christian Boller, et al. "A Short-Time Approach for Fatigue Life Evaluation of AISI 347 Steel for Nuclear Power Energy Applications." Applied Sciences 11, no. 23 (2021): 11405. http://dx.doi.org/10.3390/app112311405.

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AISI 347 austenitic steel is, as an example, used in nuclear energy piping systems. Piping filled with superheated steam or cooled water is particularly exposed to high stresses, whereupon local material properties in the pipes can change significantly, especially in the case of additional corrosive influences, leading to aging of the material. In the absence of appropriate information, such local material property variations are currently covered rather blanketly by safety factors set during the design of those components. An increase in qualified information could improve the assessment of t
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Bulgaru, Viorica, Liliana Popescu, Natalia Netreba, Aliona Ghendov-Mosanu, and Rodica Sturza. "Assessment of Quality Indices and Their Influence on the Texture Profile in the Dry-Aging Process of Beef." Foods 11, no. 10 (2022): 1526. http://dx.doi.org/10.3390/foods11101526.

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The aim of this study was to investigate the effects of the dry-aging method on the sensory properties, chemical composition, and profile parameters of the texture of beef obtained from local farms. The qualitative characteristics of the beef were investigated for five samples, respectively, fresh meat, and dry-aged beef for 14, 21, 28, and 35 days, in aging rooms with controlled parameters: temperature (1 ± 1 °C), relative humidity (80 ± 5%), and air circulation speed (0.5–2 m/s). During the dry-aging period, there was a decrease in humidity by about 6.5% in the first 21 days, which allowed t
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Devane, Megan L., William Taylor, Pierre-Yves Dupont, Bridget Armstrong, Louise Weaver, and Brent J. Gilpin. "Exploring the Bacterial Community in Aged Fecal Sources from Dairy Cows: Impacts on Fecal Source Tracking." Microorganisms 11, no. 5 (2023): 1161. http://dx.doi.org/10.3390/microorganisms11051161.

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(1) Background: This paper discusses the impact of agricultural activities on stream health, particularly in relation to dairy cow fecal pollution. The study explores the fecal microbiome of cattle and the potential ecological implications of aging fecal pollution on waterways. (2) Methods: The study examines changes in the bacterial community available for mobilization from in-situ decomposing cowpats and the effects of simulated rainfall. The microbiome of individual cowpats was monitored over 5.5 months. We used 16S rRNA metagenomics and machine learning software, FEAST (Fast Expectation-mA
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Anurova, Maria N., Elena O. Bakhrushina, Natalya B. Demina, et al. "Development of Composition and Technologies of Dental Gel of Meloxicam." Open Access Macedonian Journal of Medical Sciences 8, no. D (2020): 88–93. http://dx.doi.org/10.3889/oamjms.2020.4541.

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BACKGROUND: Dental gels have several advantages over other oral dosage forms. Being a viscoplastic dosage form, the gel, when applied to the damaged area of the gum or mucous membrane, creates a protective film, preventing mechanical irritation, and providing a localized effect of the drug components.
 AIM: The aim of this work was to develop the composition and technology of the dental gel of meloxicam, the study of the main technological and consumer characteristics, as well as the local irritating effect of the dosage form.
 METHODS: Dental gels were prepared using purified water,
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Huang, Y., S. Wu, M. K. Dubey, and N. H. F. French. "Impact of aging mechanism on model simulated carbonaceous aerosols." Atmospheric Chemistry and Physics Discussions 12, no. 11 (2012): 28993–9023. http://dx.doi.org/10.5194/acpd-12-28993-2012.

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Abstract. Carbonaceous aerosols that include organic carbon and black carbon, have significant implications for both climate and air quality. In the current global climate or chemical transport models, a simplified hydrophobic to hydrophilic conversion lifetime for carbonaceous aerosol (τ) is generally assumed, which is usually around 1 day. Based on results from recent chamber studies, we implemented a new detailed aging mechanism for carbonaceous aerosols in a chemical transport model (GEOS-Chem) where τ is affected by local conditions such as O3 concentration and humidity. The simulated τ e
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Pilusa, Kgoshi Kgashane Lucas, and Modimowabarwa Hendrick Kanyane. "Water Services Authorities Capacity in Providing Access to Water and Sanitation in Limpopo Province, South Africa." International Journal of Innovative Science and Research Technology 5, no. 6 (2020): 1586–97. http://dx.doi.org/10.38124/ijisrt20jun741.

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There has been an on-going debate regarding the effectiveness and capacity of Water Service Authorities in providing quality water service in South Africa to local citizens. As Limpopo province was preferred as a case study, it is evident that the province has been experiencing several violent water service delivery protests in different localities. The methodological approach employed was a qualitative approach reinforced by documentary review as a data source in qualitative research. Purposively, 46 participants were sampled and interviewed. In addition, document analysis of literatures and
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Sulaiman, Nada M., and Nada S. Al-Zubaidi. "The Performance of Iraqi Palygorskite in Salt Drilling Fluid." Association of Arab Universities Journal of Engineering Sciences 27, no. 1 (2020): 74–82. http://dx.doi.org/10.33261/jaaru.2019.27.1.009.

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In drilling fluid program, selecting the drilling fluid that will reduce the lost time is the first objective, and will be economical regardless of its cost. The amount and type of solids in drilling fluid is the primary control of the rheological and filtration properties. Palygorskite clay (attapulgite) is an active solid that has ability to reactive with its environment and form a gel structure within a fluid and due to its stability in the presence of brines and electrolytes this type of clay is preferred for use. The aim of this study is to calculate the yield of clay for both types of lo
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Cai, Gangwei, Baoping Zou, Xiaoting Chi, et al. "Neighborhood Spatio-Temporal Impacts of SDG 8.9: The Case of Urban and Rural Exhibition-Driven Tourism by Multiple Methods." Land 12, no. 2 (2023): 368. http://dx.doi.org/10.3390/land12020368.

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Rural arts events (triennials/festivals) are mainly aimed at local and regional revitalization. This exhibition-driven tourism (unlike traditional festivals, conferences, and exhibitions) has existed for more than 20 years in Japan. The curators of exhibition-driven tourism hope that these events can promote the economy and stop population decline as a result of the aging population. Therefore, this paper attempts to evaluate the effects of urban and rural arts event tourism in local and neighborhood areas in Niigata, Japan from the perspective of SDG 8.9. The Echigo-Tsumari Art Triennial and
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Cheng, Jialu, Yizhou Zhang, Hao Yun, Liang Wang, and Nathaniel Taylor. "A Study of Frequency Domain Reflectometry Technique for High-Voltage Rotating Machine Winding Condition Assessment." Machines 11, no. 9 (2023): 883. http://dx.doi.org/10.3390/machines11090883.

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Detecting and locating local degradations at an incipient stage is very important for mission-critical high-voltage rotating machines. One particular challenge in the existing testing techniques is that the characteristic of a local incipient defect is not prominent due to various factors such as averaging with the healthy remainder, attenuation in signal propagation, interference, and varied operating conditions. This paper proposes and investigates the frequency domain reflectometry (FDR) technique based on the scattering parameter measurement. The FDR result presents the object length, wave
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Mohr, Marius, Marc Beckett, Ursula Schließmann, Ruth Erlbeck, and Ralph Trosse. "Vacuum sewerage systems – a solution for fast growing cities in developing countries?" Water Practice and Technology 13, no. 1 (2018): 157–63. http://dx.doi.org/10.2166/wpt.2018.028.

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Abstract Developed more than a century ago, the potential of vacuum sewerage systems remains underexploited. At the same time, the rapid urbanization in Asia brings about major challenges for municipal utilities. In this context, the GIZ (Deutsche Gesellschaft fuer Internationale Zusammenarbeit) project ‘Integrated Resource Management in Asian Cities: the Urban Nexus’ gives technical advice to stakeholders in the partner cities. Fraunhofer IGB, having operated a vacuum sewer system for more than ten years in the context of a research project, carried out a survey regarding current experiences
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Gryb, I. V. "The concept of local explosion in freshwater ecosystems." Ecology and Noospherology 25, no. 1-2 (2013): 136–48. http://dx.doi.org/10.15421/031413.

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The concept of an explosion in freshwater ecosystems as a result of the release of accumulated energy, accompanied by the destruction of the steady climax successions of hydrocenoses is presented. The typification of local explosions as well as methods for assessing their risk during the development of river basins are shown. The change in atmospheric circulation, impaired phases of the hydrological regime of rivers, increasing the average temperature of the planet, including in Polesie to 0,6 ºC, deforestation leads to concentration and release of huge amounts of unmanaged terrestrial energy,
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Huang, Y., S. Wu, M. K. Dubey, and N. H. F. French. "Impact of aging mechanism on model simulated carbonaceous aerosols." Atmospheric Chemistry and Physics 13, no. 13 (2013): 6329–43. http://dx.doi.org/10.5194/acp-13-6329-2013.

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Abstract. Carbonaceous aerosols including organic carbon and black carbon have significant implications for both climate and air quality. In the current global climate or chemical transport models, a fixed hydrophobic-to-hydrophilic conversion lifetime for carbonaceous aerosol (τ) is generally assumed, which is usually around one day. We have implemented a new detailed aging scheme for carbonaceous aerosols in a chemical transport model (GEOS-Chem) to account for both the chemical oxidation and the physical condensation-coagulation effects, where τ is affected by local atmospheric environment
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Pranata, Bayu, Mohamad Ramdhan, Muhammad Hanif, et al. "SEISMIC IMAGING BENEATH SUMATRA ISLAND AND ITS SURROUNDINGS, INDONESIA, FROM LOCAL-REGIONAL P-WAVE EARTHQUAKE TOMOGRAPHY." Rudarsko-geološko-naftni zbornik 38, no. 3 (2023): 119–32. http://dx.doi.org/10.17794/rgn.2023.3.10.

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Sumatra Island and its surroundings, Indonesia, are one of the most active tectonics in the world. The Aceh-Andaman earthquake, one of the most destructive earthquakes in the world, occurred there. It has attracted many earth scientists to apply various methods, including seismic tomography, to understand the island’s subsurface structure and tectonic system. This study is the first to delineate subsurface imaging beneath the island and its surroundings using a local-regional earthquake catalogue from the Indonesian Agency for Meteorology, Climatology, and Geophysics (BMKG) seismicnetwork. The
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Kim, Youngseok, Haewook Jung, Jaesuk Ryou, and Jaehyuk Choi. "A Basic Experimental Study on Analysis of Leak Signal and Monitoring Method for Water Supply Pipe." Applied Sciences 11, no. 5 (2021): 2097. http://dx.doi.org/10.3390/app11052097.

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Water supply systems are essential elements for human life and industry, and water leaks and water supply cut-off may cause major problems. Local water leaks and pipe failures in the water supply system are inevitable problems due to the aging of pipes. Therefore, leakage detection and prevention are required to monitor the integrity of the water supply system. This paper is a fundamental study on the applicability of the smart bolt, which was developed as a monitoring system to detect water leakage in water supply monitoring. Detection experiments were conducted using a smart bolt with a buil
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Shi, Shuaiyi, Yanjun Ma, Fangwen Bao, and Faisal Mumtaz. "A Satellite Data Based Detailed Study of the Aerosol Emitted from Open Biomass Burning in Northeast China." Atmosphere 12, no. 12 (2021): 1700. http://dx.doi.org/10.3390/atmos12121700.

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Due to its unique natural conditions and agricultural tradition, northeast China (NEC) has formed a distinctive open biomass burning habit with local-specific biomass burning aerosol features. In this research, with the help of a newly optimized biomass burning aerosol identification method, which combines satellite aerosol and fire observational products with the HYSPLIT model forward trajectories, a systematic and quantitative analysis of aerosol emitted from open biomass burning in the NEC region are conducted to determine in detail its local-specific features, such as influence region, agi
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Singkong, Wachira. "The Production of Red Wine from Black Jasmine Rice." Journal of Food Research 4, no. 6 (2015): 69. http://dx.doi.org/10.5539/jfr.v4n6p69.

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This research was conducted by employing local black jasmine rice grown in Kampaengphet, Thailand as raw material for red wine production. The author firstly studied black jasmine rice fundamental information, black jasmine starch and liquid starch. The 2 levels suitable proportions of black jasmine starch and clean water screened from 6 levels were 1:3 and 1:5 (w/w) prior to TSS adjustment to 20 and 25 <sup>o</sup>Brix. The mixture was 10 days fermented with <em>Saccharomyces cerevisiae</em> yeast before conducting aging at 0-4 <sup>o</sup>C for 8 weeks. It
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de Cabo, Rafael, and Mustapha Bouhrara. "EMERGING MR IMAGING AND SPECTROSCOPY APPLICATIONS FOR AGING RESEARCH IN MODEL ORGANISMS." Innovation in Aging 7, Supplement_1 (2023): 385–86. http://dx.doi.org/10.1093/geroni/igad104.1276.

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Abstract Advances in quantitative magnetic resonance imaging and spectroscopy (MRI/MRS) methodology have enabled probing tissue microstructure and function with exquisite specificity and sensitivity in human and model systems. Using this technology to examine changes in tissue microstructure and function in aging or pathology has the potential to provide a window into the underlying age-related diseases’ mechanisms, and to nominate MR biomarkers for longitudinal assessment and intervention. Water molecules within biological tissues undergo interactions with their environment through nuclear re
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Graue, A., T. Bognø, B. A. Baldwin, and E. A. Spinler. "Wettability Effects on Oil-Recovery Mechanisms in Fractured Reservoirs." SPE Reservoir Evaluation & Engineering 4, no. 06 (2001): 455–66. http://dx.doi.org/10.2118/74335-pa.

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Summary Iterative comparison between experimental work and numerical simulations has been used to predict oil-recovery mechanisms in fractured chalk as a function of wettability. Selective and reproducible alteration of wettability by aging in crude oil at an elevated temperature produced chalk blocks that were strongly water-wet and moderately water-wet, but with identical mineralogy and pore geometry. Large scale, nuclear-tracer, 2D-imaging experiments monitored the waterflooding of these blocks of chalk, first whole, then fractured. This data provided in-situ fluid saturations for validatin
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Mohamed, Z. E., and A. I. Al-Hadithi. "The Effect of Adding Expanded Polystyrene Beads (EPS) on Polymer-Modified Mortar." Engineering, Technology & Applied Science Research 12, no. 6 (2022): 9426–30. http://dx.doi.org/10.48084/etasr.5226.

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This study assessed the efficiency of Expanded Polystyrene (EPS) waste as a 10, 20, 30, 40, 50, and 60% substitute for fine aggregate in the manufacturing of lightweight cement composites. A 4% low-cost latex paint emulsion was added to the cement mortar to reinforce it as an alternative to the more expensive polymer admixtures. This improved the bonding between the cement matrix and the EPS particles because SBR films were produced in the cement matrix. The flexural strength of regular EPS concrete may also be significantly increased by SBR treatment. Eight alternative mix designs were create
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Ferretto, William, Igor Matteo Carraretto, Andrea Tiozzo, Marco Montini, and Luigi Pietro Maria Colombo. "Horizontal Stratified Air–Foam–Water Flows: Preliminary Modelling Attempts with OLGA." Fluids 8, no. 3 (2023): 89. http://dx.doi.org/10.3390/fluids8030089.

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Water accumulation is a major problem in the flow assurance of gas pipelines. To limit liquid loading issues, deliquification by means of surfactant injection is a promising alternative to the consolidated mechanical methods. However, the macroscopic behavior of foam pipe flow in the presence of other phases has barely been explored. The goal of this work was to propose an approach to simulate air–water–foam flows in horizontal pipes using OLGA by Schlumberger, an industry standard tool for the transient simulation of multiphase flow. The simulation results were compared with experimental data
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Čeović, Josip, and Matko Širola. "Medium and Low Voltage Cable Measurements - TD, PD, LIRA." Journal of Energy - Energija 65, no. 1-2 (2022): 24–37. http://dx.doi.org/10.37798/2016651-2125.

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Elmont d.o.o. Krško – We have spread our main scope of the services from electrical maintenance, modifications implementations and quality control to cable testing area. The main reason for expanding our scope was to support Nuclear Power Plant Krško Cable Aging Management program and the world trend of LTE (Life Time Extension) in power plants. Scope of work – We are identifying potential downgraded conditions for safety and operational important cables in special areas (heat, water, radiation). Our main scope is visual control, and testing with analysis. For low voltage cables the main testi
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Howell, Britteny, and Samantha Wanner. "Friendships Forged in Fitness: An Ethnographic Exploration of Older Women’s Social Experiences in Water Aerobics." Innovation in Aging 4, Supplement_1 (2020): 470. http://dx.doi.org/10.1093/geroni/igaa057.1522.

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Abstract Research shows that participants, especially older women, are more likely to adhere to a fitness program when they have social supports. Gerontology research also demonstrates that the social relationships forged by older women at community and fitness centers can be long-lasting and provide a variety of supportive functions. Older adults respond well to pool- or water-based aerobic exercises that are safe on the joints and provide a comfortable environment away from the intimidating nature of the gym. Therefore, water-based classes provided at community fitness centers are well posit
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Frigione, Mariaenrica, Mariateresa Lettieri, Francesca Lionetto, and Leno Mascia. "Experimental Cold-Cured Nanostructured Epoxy-Based Hybrid Formulations: Properties and Durability Performance." Polymers 12, no. 2 (2020): 476. http://dx.doi.org/10.3390/polym12020476.

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Different hybrid epoxy formulations were produced and cold-cured, monitoring the properties development during low temperature curing and aging. All systems were based on silane functionalized bis-phenol A (DGEBA) resins (Part A), cured at ambient temperature with two amine hardeners (Part B). The different components of the formulations were selected on their potential capability to bring about enhancements in the glass transition temperature. The durability of the produced hybrids was probed in comparison to the corresponding neat epoxies by monitoring changes in glass transition temperature
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Atanane, Othmane, Asmaa Mourhir, Nabil Benamar, and Marco Zennaro. "Smart Buildings: Water Leakage Detection Using TinyML." Sensors 23, no. 22 (2023): 9210. http://dx.doi.org/10.3390/s23229210.

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The escalating global water usage and the increasing strain on major cities due to water shortages highlights the critical need for efficient water management practices. In water-stressed regions worldwide, significant water wastage is primarily attributed to leakages, inefficient use, and aging infrastructure. Undetected water leakages in buildings’ pipelines contribute to the water waste problem. To address this issue, an effective water leak detection method is required. In this paper, we explore the application of edge computing in smart buildings to enhance water management. By integratin
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Tsuchiya, Kenta, Ernan Rustiadi, Darmawan, and Shinya Funakawa. "The Role of Terraced Paddy Fields and Its Critical Issues in Sustaining a Mountainous Tropical Monsoon Rural Community: Case Study of Malasari Village, Bogor Regency, Indonesia." Journal of Regional and Rural Development Planning 5, no. 2 (2021): 91–100. http://dx.doi.org/10.29244/jp2wd.2021.5.2.91-100.

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Terraced paddy fields play an important role not only in the food production function, but also in flooding control, water source recharge, and soil erosion and landslide prevention in mountainous area. Abandonment has been occurring in many countries due to natural condition climate, low-productive, less economic condition, depopulation, aging, and poor work efficiency. However, the terraced fields in Malasari village, Bogor Regency are relatively sustained and constantly maintained by traditional local farmers. Therefore, this study aims to seek keys to how to maintain of the terraced paddy
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Michalopoulou, Anastasia, Iason Markantonis, Diamando Vlachogiannis, Athanasios Sfetsos, Vassilis Kilikoglou, and Ioannis Karatasios. "Weathering Mechanisms of Porous Marl Stones in Coastal Environments and Evaluation of Conservation Treatments as Potential Adaptation Action for Facing Climate Change Impact." Buildings 13, no. 1 (2023): 198. http://dx.doi.org/10.3390/buildings13010198.

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This work presents the methodological approach followed for the study of the interaction of natural stone monuments with the local microclimate (exposure to RH, temperature alterations, wind, marine aerosol). This was implemented with the documentation of the associated weathering phenomena and the study of historic climate data of the area. The paper is focused on the main weathering mechanisms of the marly limestone at the Hellenistic theater of Zea in Piraeus, Greece. Based on the weathering phenomena identified, the development of the appropriate mitigation strategy was based on the physic
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Bulgaru, Viorica, and Liliana Popescu. "DRY-AGED BEEF: COLOR PARAMETERS AND SENSORY CHARACTERISTICS." Journal of Engineering Science 30, no. 3 (2023): 155–63. http://dx.doi.org/10.52326/jes.utm.2023.30(3).11.

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Research work involves the instrumental analysis of the change in color (L*, a*, b*) and the sensory characteristics of the Simmental beef, parts of the carcass: T-bons, received from the local farm, during the dry-aging period for 0, 14, 21, 28, 35 days and for the roasted aged beef at high and very high temperatures. The analyzed beef samples presented uniform results for the chromatic parameters during the dry-aging period, being influenced by the values of meat pH and the water-holding capacity, namely: for the dry-aged meat, the L* parameter values indicate an increase in the brightness o
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Stepanichev, Mikhail, Victor Aniol, Natalia Lazareva, and Natalia Gulyaeva. "Decreased Hippocampal Neurogenesis in Aged Male Wistar Rats Is Not Associated with Memory Acquisition in a Water Maze." International Journal of Molecular Sciences 24, no. 17 (2023): 13276. http://dx.doi.org/10.3390/ijms241713276.

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Brain aging is associated with a progressive decrease in learning abilities, memory, attention, decision making, and sensory perception. Age-related cognitive disturbances may be related to a decrease in the functional capacities of the hippocampus. This brain region is essential for learning and memory, and the lifelong neurogenesis occurring in the subgranular zone of the dentate gyrus may be a key event mediating the mnemonic functions of the hippocampus. In the present study, we investigated whether age-related changes in hippocampal neurogenesis are associated with learning and memory dis
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Abbou, S., J. Dillet, G. Maranzana, S. Didierjean, and O. Lottin. "Local potential evolutions during proton exchange membrane fuel cell operation with dead-ended anode – Part II: Aging mitigation strategies based on water management and nitrogen crossover." Journal of Power Sources 340 (February 2017): 419–27. http://dx.doi.org/10.1016/j.jpowsour.2016.10.045.

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Roy, Samuel G., Emi Uchida, Simone P. de Souza, et al. "A multiscale approach to balance trade-offs among dam infrastructure, river restoration, and cost." Proceedings of the National Academy of Sciences 115, no. 47 (2018): 12069–74. http://dx.doi.org/10.1073/pnas.1807437115.

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Aging infrastructure and growing interests in river restoration have led to a substantial rise in dam removals in the United States. However, the decision to remove a dam involves many complex trade-offs. The benefits of dam removal for hazard reduction and ecological restoration are potentially offset by the loss of hydroelectricity production, water supply, and other important services. We use a multiobjective approach to examine a wide array of trade-offs and synergies involved with strategic dam removal at three spatial scales in New England. We find that increasing the scale of decision-m
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