Relevant bibliographies by topics / MPN water analysis

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'MPN water analysis'

Author: Grafiati
Published: 7 June 2025
Last updated: 17 July 2025

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Journal articles on the topic "MPN water analysis"

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Yuliansari, Dini, Enida Fatmalia, and Wahyudin Wahyudin. "Analysis of the Biological Quality of Clean Water in the Male Dormitory." Jurnal Pijar Mipa 20, no. 4 (2025): 632–37. https://doi.org/10.29303/jpm.v20i4.9034.

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The use of unclean water is one of the causes of skin diseases. Skin diseases are often suffered by students in the Islamic boarding school environment because sanitation facilities may be inadequate. It is known that the water source in the Islamic boarding school uses drilled well water. The purpose of this study was to determine the quality of clean water in the male dormitory of the Abu Hurairah Mataram Islamic boarding school, which was reviewed biologically. This type of research is descriptive qualitative. The population in this study were all the water taps in the male dormitory of the
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Coutinho, Maria Gleiciane Soares, Andréa Maria Neves, Francisco Fábio Pereira de Souza, Ana Sancha Malveira Batista, and Raquel Oliveira dos Santos Fontenelle. "Microbiological analysis of coconut water (Cocos nucifera L.) sold by street vendors in Sobral/CE, Brazil." Interfaces Científicas - Saúde e Ambiente 9, no. 3 (2024): 219–31. http://dx.doi.org/10.17564/2316-3798.2024v9n3p219-231.

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Green coconut water is rich in nutrients and widely consumed in the world. However, the consumption of coconut water out of good practices for food production treat consumer health. The aim of this work was to evaluate the microbiological quality of coconut water sold by vendors street in Sobral - CE. Samples of fresh coconut water were collected bimonthly from four different points (named A, B, C and D) during 12 months (n=24). Samples were characterized by quantification of total coliform (TC), thermotolerant coliform (TTC) and mesophilic aerobic bacteria (MAB). The Most Probable Number (MPN
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Nikijuluw, Monica, Mery Pattipeilohy, and Ferymon Mahulette. "Analysis of coliform bacteria contamination in drinking water refill in Ambon City." BIOEDUPAT: Pattimura Journal of Biology and Learning 3, no. 2 (2023): 125–28. http://dx.doi.org/10.30598/bioedupat.v3.i2.pp125-128.

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In recent years, refillable drinking water businesses have grown rapidly in several cities in Indonesia, including Ambon City. On the one hand, Refillable Drinking Water Depots (DAMIU) support efforts to realize a healthy society by expanding the reach of clean water consumption, On the other hand, DAMIU tend to be problematic when faced with business interests. Feces contain coliform bacteria which is an indicator of water contamination. This study aims to determine the presence of coliform bacteria in Ambon City. The samples used in the study came from three sub-districts of refill drinking
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Grabow, W. O. K., J. C. de Villiers, and N. Prinsloo. "An Assessment of Methods for the Microbiological Analysis of Shellfish." Water Science and Technology 24, no. 2 (1991): 413–16. http://dx.doi.org/10.2166/wst.1991.0101.

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The efficiency of membrane filtration (MF) techniques and most probable number (MPN) tube dilution assays for the bacteriological analysis of homogenized oyster and mussel meat was compared. Tests were done on naturally contaminated shellfish and on homogenates seeded with sewage. Digested homogenates (5% trypsin for 20 min at 37°C) were prefiltered (pore size 5 um) and then filtered (pore size 0.45 µm) for MF counts. Undigested homogenates and dilutions were inoculated into tubes with growth medium for MPN tests. Homogenates (with or without trypsin) were used directly in a toplayer method fo
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Khajuria, Meenakshi, and SPS Dutta. "Bacteriological characteristics of raw water of the river Tawi near Sitlee water treatment plant, Jammu." Environment Conservation Journal 10, no. 1&2 (2009): 145–48. http://dx.doi.org/10.36953/ecj.2009.101225.

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Bacteriological analysis of raw water of the river Tawi, near Sitlee water treatment plant, has shown the seasonal presence of Kiebsiella. Ctrobacter, Escherichia and Pseudomonas. Total bacterial count (MPN) recorded summer (April, May). monsoon and post-monsoon (June- October) increase and winter (November, December, February) decrease. It varied between 92 and >180 during both the years of study MPN index above 10 /100 ml indicates that raw water is not suitable for drinking purposes and comes under the category of unsatisfactory. It needs proper treatment before supplied to the consumers
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Ahmed, Tasnia, Sagar Baidya, Mrityunjoy Acharjee, and Tasmina Rahman. "Qualitative analysis of drinking water through the most probable number (MPN) method." Stamford Journal of Microbiology 3, no. 1 (2015): 9–16. http://dx.doi.org/10.3329/sjm.v3i1.22745.

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Water borne disease outbreaks associated with the drinking of unsafe water, containing pathogenic bacteria of fecal origin, is common in densely populated countries like Bangladesh. Present study was attempted to detect indicator bacteria from drinking water samples for the presumptive occurrence of fecal contaminations that are responsible for health associated problems. Therefore, a laboratory scale qualitative analysis through most probable number (MPN) method was employed. The indicator bacterium Escherichia coli were detected in 24 water samples out of 75 samples as revealed consequently
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Rifani, Muhammad, Munawar Raharja, and Isnawati Isnawati. "Kadar Sisa Klor Terhadap Nilai MPN Coliform Pada Jaringan Perpipaan PDAM Di Kabupaten Hulu Sungai Utara." JURNAL KESEHATAN LINGKUNGAN: Jurnal dan Aplikasi Teknik Kesehatan Lingkungan 13, no. 2 (2016): 368. http://dx.doi.org/10.31964/jkl.v13i2.35.

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Abstract : Study of free chlorine levels with a value of MPN coliform in water piping distribution PDAM Kabupaten Hulu Sungai Utara Year 2016. Provision of safe drinking water must also meet quality requirements which include requirements physical, chemical, bacteriological and radiological. River water one source of raw water for water companies. Perusahaan Daerah Air Minum (PDAM) Kabupaten Hulu Sungai Utara is a provider of clean water. Based on secondary data report PDAM to maintain water quality after processing up to the distribution network PDAM using chlorine disinfection materials. The
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Supardan, Dadan. "Coliform Contaminant Analysis at Dug Well in Ungga Village, Central Lombok District, West Nusa Tenggara." Bioscience 2, no. 1 (2018): 41. http://dx.doi.org/10.24036/02018219981-0-00.

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Dug well water generally is a daily source of domestic water used by most households in Indonesia. However, the well water excavation does not meet the quality of health standards. Contamination of microorganism in dug well water occurs due to the distance of wells with septic tank, household waste disposal and animal husbandry. One of the bioindicators of contaminated groundwater is the presence of Coliform bacteria in large quantities, such as Escherichia coli, which potentially cause various diseases in human. The objective of this study was to determine the biological contamination of dug
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Mudatsir, Mudatsir. "Uji Mikrobiologi Air Sumur Gali Berdasarkan Sumber Pencemar di Desa Limphok dan Beurabung Kecamatan Darussalam, Aceh Besar." Jurnal Kedokteran Syiah Kuala 20, no. 1 (2020): 9–18. http://dx.doi.org/10.24815/jks.v20i1.3660.

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Abstrak. Air merupakan materi yang esensial bagi kehidupan manusia dan tidak dapat diganti dengan materi yang lain. Air juga merupakan salah satu sarana dan media yang baik untuk penyebaran berbagai macam penyakit. Penelitian ini bertujuan untuk menguji air sumur air sumur terhadap cemaran Escherichia coli berdasarkan sumber pencemar. Sampel dalam penelitian ini sebanya 30 sampel yang diambil secara purposive sampling. Metode pemeriksaan air yang digunakan adalah MPN(Most Probable Number) seri 15 tabungyang terdiri dari tiga tahap, yaitu uji pendugaan, uji konfirmatif dan uji lengkap. Data dia
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GOODRIDGE, C., L. GOODRIDGE, D. GOTTFRIED, P. EDMONDS, and J. C. WYVILL. "A Rapid Most-Probable-Number–Based Enzyme-Linked Immunosorbent Assay for the Detection and Enumeration of Salmonella Typhimurium in Poultry Wastewater." Journal of Food Protection 66, no. 12 (2003): 2302–6. http://dx.doi.org/10.4315/0362-028x-66.12.2302.

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The rapid and accurate detection and enumeration of low levels of Salmonella Typhimurium in food processing facilities are critical components of an effective hazard analysis critical control point program. The objective of this study was to develop a rapid (8 h) most probable number (MPN)–enzyme-linked immunosorbent assay (ELISA) for the detection and enumeration of Salmonella Typhimurium in wastewater. The specific objectives were to (i) characterize poly- and monoclonal Salmonella Typhimurium–specific antibodies in order to select the most specific and sensitive antibody for Salmonella Typh
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Dissertations / Theses on the topic "MPN water analysis"

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Balsemin, Antonio. "Applications Oriented Input design for MPC: An analysis of a quadruple water tank process." Thesis, KTH, Reglerteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-102154.

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Model predictive control (MPC) has become an increasingly popular control strategy thanks to its ability to handle multivariable systems and constraints. This control technique makes use of a model of the system, therefore performances are highly dependent on the accuracy of the model chosen. The process of obtaining the model is often costly, for this reason system identi cation for MPC is an important topic. Applications oriented optimal input design enables optimization of the system identi cation experiments, leading to a set of models with the necessary accuracy for the intended applicati
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Sharpe, Jenny-Kay. "Body composition and energy expenditure in men with schizophrenia." Thesis, Queensland University of Technology, 2007. https://eprints.qut.edu.au/16961/1/Jenny-Kay_Sharpe_Thesis.pdf.

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There is an increase in the prevalence of obesity among people with schizophrenia thought to be due in part to the weight enhancing side-effects of medications commonly used to treat the symptoms of schizophrenia. Despite the deleterious health effects associated with obesity and its impact on quality of life and medication compliance, little is known about body composition and energy expenditure in this clinical group. The primary purpose of this thesis was to enhance understanding of body composition and energy expenditure, particularly resting energy expenditure in men with schizophrenia wh
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Sharpe, Jenny-Kay. "Body composition and energy expenditure in men with schizophrenia." Queensland University of Technology, 2007. http://eprints.qut.edu.au/16961/.

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There is an increase in the prevalence of obesity among people with schizophrenia thought to be due in part to the weight enhancing side-effects of medications commonly used to treat the symptoms of schizophrenia. Despite the deleterious health effects associated with obesity and its impact on quality of life and medication compliance, little is known about body composition and energy expenditure in this clinical group. The primary purpose of this thesis was to enhance understanding of body composition and energy expenditure, particularly resting energy expenditure in men with schizophrenia wh
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Olapade, Peter Ojo. "Simulation, analysis, and mass-transport optimization in PEMFCs." Thesis, 2011. http://hdl.handle.net/2152/28471.

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In this dissertation, we present two major lines of numerical investigation based on a control-volume approach to solve coupled, nonlinear differential equations. The first model is developed to provide better understanding of the water management in PEMFC operating at less than 100ºC, under transient conditions. The model provides explanations for the observed differences between hydration and dehydration time constants during load change. When there is liquid water at the cathode catalyst layer, the time constant of the water content in the membrane is closely tied to that of liquid water sa
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Books on the topic "MPN water analysis"

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Cha, Kyung-Ho, ed. Aura und Experiment. Turia + Kant, 2017. http://dx.doi.org/10.37050/ci-13.

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Walter Benjamin forderte, die »undialektische Trennung zu überprüfen, die man zwischen Natur- und Geisteswissenschaft zu etablieren suchte«. Die Beiträge des Sammelbands widmen sich einerseits Benjamins Beschäftigung mit den Naturwissenschaften und der Technik, und erproben andererseits neue Wege in der Wissens- und Wissenschaftsforschung, die zeigen, wie seine Begriffe und Modelle für die historische und theoretische Analyse der Technik und der Wissenschaften fruchtbar gemacht werden können.
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Cha, Kyung-Ho, ed. Aura und Experiment. Turia + Kant, 2017. http://dx.doi.org/10.37050/ci-13.

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Walter Benjamin forderte, die »undialektische Trennung zu überprüfen, die man zwischen Natur- und Geisteswissenschaft zu etablieren suchte«. Die Beiträge des Sammelbands widmen sich einerseits Benjamins Beschäftigung mit den Naturwissenschaften und der Technik, und erproben andererseits neue Wege in der Wissens- und Wissenschaftsforschung, die zeigen, wie seine Begriffe und Modelle für die historische und theoretische Analyse der Technik und der Wissenschaften fruchtbar gemacht werden können.
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Gruzdev, Vladimir, Sergey Suslov, Vladimir Kosinskiy, and Mariya Hrustaleva. Changes in the composition and structure of the components of the landscapes of the forest zone in the conditions of technogenesis. INFRA-M Academic Publishing LLC., 2023. http://dx.doi.org/10.12737/1850657.

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The monograph is devoted to the analysis of changes in the structure of natural and agricultural landscapes under conditions of anthropogenic, including man-made, impact on landscapes. The author summarizes his own research conducted in the forest zone in the subzones of the middle and southern taiga and broad-leaved coniferous forests. The studies were carried out in forests, meadows and swamps, and also studied the formation of the quality of natural waters and the overgrowth of reservoirs in the forest zone. The composition and structure of zonal plant communities and the dynamic succession
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Roggeri, Henri. African dams: Impacts in the environment : the social and environmental impact of dams at the local level : a case study of five man-made lakes in eastern Africa. Environment Liaison Centre, 1985.

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1959-, Shi Guoqing, ed. Shui li shui dian yi min zhi du yan jiu: Wen ti fen xi, zhi du tou shi yu chuang xin gou xiang = Institutional research on resettlement-induced by water resources projects : issues analysis, institutional perspectives & innovation constrcuting. She hui ke xue wen xian chu ban she, 2011.

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Jaworski, Gary D. Erving Goffman and the Cold War. Lexington Books, 2023. https://doi.org/10.5040/9781666990874.

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Erving Goffman and the Cold War presents a provocative new reading of the work of sociologist Erving Goffman. Instead of viewing him as a “marginal man” or academic outsider, Gary D. Jaworski explores Goffman as a social theorist of the Cold War. Goffman was deeply connected to both the ethos of his time and to a range of cold warriors and their critics, such as Edward A. Shils, Thomas C. Schelling, and the researchers on “brainwashing” associated with the Walter Reed Army Institute of Research, among others. Chapters on loyalty, betrayal, secrecy, strategy, interrogation, provocation, and agg
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Hawley, Mark, and John Cunning, eds. Guidelines for Mine Waste Dump and Stockpile Design. CSIRO Publishing, 2017. http://dx.doi.org/10.1071/9781486303519.

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Guidelines for Mine Waste Dump and Stockpile Design is a comprehensive, practical guide to the investigation, design, operation and monitoring of mine waste dumps, dragline spoils and major stockpiles associated with large open pit mines. These facilities are some of the largest man-made structures on Earth, and while most have performed very well, there are cases where instabilities have occurred with severe consequences, including loss of life and extensive environmental and economic damage. 
 Developed and written by industry experts with extensive knowledge and experience, this book i
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Marvin, Laurence W. The Damietta Crusade, 1217-1221. Oxford University PressOxford, 2024. http://dx.doi.org/10.1093/9780198916208.001.0001.

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Abstract The Damietta Crusade offers the first book-length monograph of the Fifth Crusade in almost forty years, and only the second in over a century. It emphasizes what made this campaign unique, from its planning, choice of target, its “brown-water” or amphibious nature, course, and result. It argues that the crusade’s planners worked from an achievable grand strategy: Jerusalem’s restoration to Latin Christian hands. Operationally the crusaders invaded Egypt, designed as a stratagem to threaten the economic hub of Cairo to force Jerusalem’s return. Once in Egypt, the crusaders had to deal
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Kvint, Vladimir. STRATEGIZING OF KUZBASS REGION ECOLOGICAL DEVELOPMENT. Kemerovo State University, 2021. http://dx.doi.org/10.21603/978-5-8353-2797-3.

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The monograph «Strategizing of Kuzbass Region Ecological Development» proposes strategic
 initiatives for the transformation of Kuzbass region in the environmental sphere based on the greening
 of industries in the main sectors of the economy, their transition to the principles of a "green" economy,
 the introduction of modern technologies in order to protect and improve the environment, preserve
 natural resources and improving of Kuzbass citizens` quality of life, ensuring the development of
 environmental education, as well as the recreational role of specially prot
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van Beek, Walter E. A., Oumarou S. Ongoiba, and Atimè D. Saye. Singing with the Dogon Prophet. The Rowman & Littlefield Publishing Group, 2022. https://doi.org/10.5040/9781978726611.

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In the Dogon funeral proceedings, a major song cycle called baja ni is performed in a session of at least seven hours. The texts of the chants are attributed to a legendary figure called Abir?, who as a blind singer in the nineteenth century roamed the heartland of the Dogon. The baja ni songs have escaped scholarly attention thus far. Singing with the Dogon Prophet by Walter E.A. van Beek, Oumarou S. Ongoiba, and Atimε D. Saye provides their first publication in English as well as an analysis of these songs. These texts deal with the relations between man and woman, man’s ambivalent dependenc
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Book chapters on the topic "MPN water analysis"

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Hao, Yiyang, Yunbo Zhou, and Ming Zhang. "Research on Wading Mobility of a Certain Type of Special Vehicle Based on MPS Method." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1876-4_96.

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AbstractIn order to study the wading mobility of a certain type of special vehicle, a high-precision dynamic model of the special vehicle is built. The vehicle dynamic model is verified by in-situ acceleration test and traction test. Through the dam-break experiment and wet road traction test, the feasibility and reliability of calculating the water impact pressure, buoyancy and solving the fluid–solid coupling problem based on the moving particle semi-implicit algorithm (MPS) are verified. Then, based on the MPS algorithm, a multi-body dynamics-fluid analysis simulation model is built to simulate and analyze the vehicle mobility under the static water wading condition and the water flow lateral impact condition. The relationship between the maximum speed of the vehicle at different water depths and gears under the static water wading condition the and the relationship between the lateral offset of the vehicle and the flow velocity and the deflection angle of the vehicle entering the water in the lateral impact condition are obtained.
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Fang, Wei, Jingjing He, Yang Yu, Rusheng Hao, and Yan Guo. "Numerical Analysis Calculations of Ductile Concrete Gravity Dams Under Seismic Action." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-9184-2_3.

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AbstractFinite element analysis was conducted on the stress, vertical displacement, and horizontal displacement of ordinary concrete and ductile concrete gravity dams under different working conditions. The results show that: with the decrease of the height of the dam, the stresses on the two concrete dams gradually increase, and the vertical displacements show a decreasing trend during the operation period. Under the effect of earthquakes, the maximum stress of the two kinds of concrete gravity dams appears at the weak point of the dam body. The maximum stress of the normal water level and the falling water level of the ordinary concrete dam reach 9.91 MPa and 9.85 MPa respectively. The maximum stress of two types of concrete dams under seismic conditions is approximately 4 times that of the operation period. Under different working conditions, the maximum stress and displacement of the ordinary concrete are always smaller than that of ductile concrete.
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Lu, Qi, Yongzhen Ma, Ganbin Liu, and Fuxin Ni. "Dynamic Characteristics Test and Microstructure Analysis of Silt Soil Improved by Curing Agent." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4090-1_24.

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AbstractWith the acceleration of urbanization, the output of construction sludge and waste mud is increasing. Its transportation cost is high and there are potential safety hazards. Therefore, it is necessary to seek effective disposal and utilization methods. Aiming at the silt soil with high water content, the developed YB100 powder curing agent was used to improve the properties of silt soil, and the effects of dynamic properties and water stability of the cured soil were studied by curing agent dosing, surrounding pressure, and dynamic stress ratio. The microstructure of the cured soil was analyzed by SEM scanning electron microscopy to reveal the curing mechanism. The results showed that: the dynamic elastic modulus of the cured soil specimens increased from about 60 MPa to about 150 MPa when the amount of curing agent was increased by 0, 2, 4 and 6%; with the increase of curing agent content, the damping ratio changed less during vibration and the curve was flatter; after 24 h of water immersion, the dynamic elastic modulus of the specimens decreased by about 15–20% and the damping ratio had some growth, and with the dynamic stress ratio. With the growth of dynamic stress ratio, the weakening of dynamic elastic modulus of the specimen is not obvious, and the change of damping ratio weakly decreases less; SEM photos show that the cured soil particles are agglomerated, and the pore space is greatly reduced, because the curing agent produces hydration reaction with water in the silt soil, and the resulting gelling material improves the strength of the soil, and at the same time the complexes generated by the reaction with the soil strengthen the stability of the soil.
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Mocwagae, Kgosi, and Thulisile Mphambukeli. "Planning for Effective and Sustainable Water Access and Provision in QwaQwa Through the UN Sustainable Development Goals." In Sustainable Development Goals Series. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-15773-8_8.

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AbstractQwaQwa is a former Bantustan, which consisted of 13 sections of the Phuthaditjhaba Township and 99 surrounding villages. On 1 January 2016, the Maluti-a-Phofung Local Municipality reported that the Fika Patso Dam, which supplies the majority of water to QwaQwa, had insufficient water, subsequently shutting it down. The community of QwaQwa had reportedly been struggling to access drinking water since 2016, which forced them to collect water from provisional or improvised municipal water tankers. This chapter documents the lived experiences of 11 communities in the greater QwaQwa area, highlighting their struggle to access adequate drinking water. The chapter proposes planning interventions for effective and sustainable water access and provision in QwaQwa. It also looks at Sustainable Development Goals 6 and 11 to address policy issues toward effective and sustainable water provision in QwaQwa. The study employed an exploratory sequential mixed-methods approach. The qualitative method administered 10 semi-structured interviews with key informants (municipal officials and political leaders) and three households for 326 min in total. A total of 571 household questionnaires were administered for quantitative data collection. Discourse and thematic methods were used for the qualitative data analysis, and descriptive and inferential statistics for the quantitative data analysis. The study established that post-apartheid’s ineffective planning for water access in QwaQwa, significantly and negatively affected the greater QwaQwa community, resulting in the local communities having to travel long distances to collect water. It took more time to collect water, while the water quantity decreased with an increased cost of accessing water. The misfortune of the QwaQwa water crisis presents a challenge for the attainment of UN Sustainable Development Goals 6 and 11 that require basic service provision and making cities more inclusive by the municipality.
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Jelani, Jestin, Mohamad Saiful Adli Hah, Mohd Nazrin Mohd Daud, Nordila Ahmad, Maidiana Othman, and Wan Mohamed Syafuan Wan Mohamed Sabri. "Stability Analysis of a Man-Made Slope: A Case Study on the UPNM Campus, Sg Besi, Kuala Lumpur." In Sustainable Development of Water and Environment. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-75278-1_4.

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Di Perna, Angela, Sabatino Cuomo, and Mario Martinelli. "Modelling of Landslide-Structure Interaction (LSI) Through Material Point Method (MPM)." In Progress in Landslide Research and Technology, Volume 2 Issue 1, 2023. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-39012-8_6.

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AbstractA novel numerical approach, namely Material Point Method (MPM), is applied to analyze the build-up of pore water pressure inside the landslide body during the impact against different types of structures. To this aim, the landslide soil is schematized as a two-phase elasto-plastic material, while the structural materials are assumed as one-phase elasto-plastic bodies. The complex Landslide-Structure Interaction (LSI) is simulated for different landslide scenarios, including the formation of “dead-zones” behind the structures and/or the run-up mechanisms, even including in some cases unacceptable displacements or the complete disruption of the impacted structure. Independent on site-specific conditions, it is shown that landslide pore water pressures undergo significant tempo-spatial evolution during a dynamic impact, meaning that a hydro-mechanical coupled approach is fully needed for an adequate LSI analysis.
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Wan, Zhiyong, Yun Li, Jianfeng An, Xiaogang Wang, and Xiujun Yan. "Analysis of Water Level Fluctuations in Bifurcating Approach Channels Under the Flow Regulation of Reservoirs." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6138-0_128.

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AbstractAn approach channel is a restricted channel connecting the lock head with the upstream and downstream navigation waterway, characterized by a narrow navigation channel with a closed-end, small coefficient of cross-section, and low speed for vessel navigating. Due to the uncertain impact of the waves induced by the flow regulation of reservoirs on water-level fluctuations in bifurcating approach channels, the river reach between the Three Gorges Dam (TGD) and the Gezhouba Dam (GZD) is selected as the study area and the variations of water-level fluctuating amplitude in the approach channel located on the left bank downstream of the TGD are revealed under the joint regulation of the Three Gorges and Gezhouba reservoirs based on numerical simulations. Furthermore, the relationship between water level variation at the lower lock head of the ship lift and the flow regulation of reservoirs is investigated in detail. Results indicated that water level variation of the ship lift approach channel exhibits an amplifying effect and the lower lock head of the ship lift is a key concern for navigable flow conditions. In addition, the flow variation rate should be controlled within the range of 2,000 m3/15 min in the context of joint regulation of two reservoirs, which enables the safe docking of vessels at the lower lock head of the ship lift. The findings in this study may contribute to the designing and planning of the newly-planned Three Gorges ship lock approach.
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Jian, Lijun, Xiao Zeng, and Jie Pei. "The Potential Force Interface Tension Model in MPS Method for Stratification Simulation." In Springer Proceedings in Physics. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1023-6_27.

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AbstractIn the analysis of phenomenology of serious accident, stratification behavior is important in the late in-vessel stage of core melt. Traditional numerical methods have difficulties in analyzing stratification process accompanying with free surface, which need extra processes such as empirical correlations. The Moving Particle Semi-implicit (MPS) method has a natural advantage in calculating multiphase flows with free surface. In this paper, we apply the potential force surface tension model to the MPS program and extend the original surface tension model to the interface tension calculation of multiple flows. The improved MPS method is verified by a classical dam break problem. The surface tension model is verified by the cases of droplet oscillation, droplet on solid wall and floating droplet. Finally, the two-dimensional dam-break stratification experiment of silicone oil and salt water is simulated, and the simulation results agree with the experiment.
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Dalle Mura, Ilaria, Enrico Barbone, Daniela Battista, et al. "A first assessment of microplastics in the sea waters off the Puglia region." In Ninth International Symposium “Monitoring of Mediterranean Coastal Areas: Problems and Measurement Techniques”. Firenze University Press, 2022. http://dx.doi.org/10.36253/979-12-215-0030-1.39.

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To meet the objectives of the MSFD, 2008/56/EC, the Puglia Regional Agencies for the Prevention and Protection of the Environment (ARPA Puglia) performed a quantitative and qualitative analysis of the MPs on the basis of the data collected during 2015-2017 monitoring program. A total of 90 samples in 5 campaigns were collected using a manta net. The MPs average density of 0,469 n/m³ was calculated for the entire dataset. No significant statistical differences were detected among sampling sites, campaigns and distance from the coast.
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Hu, Jian, Xiaohong Gao, Zengyin Wen, Guojiao Wen, and Miao Zhang. "Research on Preparation Technology and Properties of Grouting Materials for Prefabricated Buildings." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-5814-2_4.

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AbstractSleeve grouting materials are important to connect steel bars in prefabricated buildings since their quality and properties not only affect the stability, safety, and seismic capacity of buildings but also influence the operation of buildings. Quality issues in grouting materials can potentially result in joint damage and embrittlement, which may compromise the safety and service life of buildings, thereby leading to an increase in maintenance costs. Consequently, appropriate grouting materials should be carefully selected according to the operational characteristics of the buildings. This study conducted experiments to analyze the properties of grouting materials under different cement-sand ratios, with the cement-sand ratio of 1.0 selected as the base grout of grouting material. Subsequently, the orthogonal test method was employed to investigate the correlations between the properties of grouting materials and varying amounts of water reducers, expansion agents, and silica fume. Through this analysis, the optimal mixing amounts were determined as 15.7 g, 1.2 g, and 42 g for water reducers, expansion agents, and silica fume, respectivelys. Finally, based on the foregoing conclusions, a high-performance sleeve grouting material with a 3 h compressive strength of 40 MPa was successfully developed by adding sulphoaluminate and lithium carbonate. This study provides some references for the production and application of sleeve grouting materials.
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Conference papers on the topic "MPN water analysis"

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Alramadan, Khloud, Joseph Puthuvelil, and Salman Al-Mutiry. "Evaluation of a Rapid Solution for SRB Monitoring in Industrial Water System." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17554.

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Abstract Sulfate-reducing bacteria (SRB) have been found to be the most troublesome group of microorganisms involved in microbial induced corrosion (MIC) of carbon steel and other metals used in the oil and gas industry. Uncontrolled growth of microorganisms in the oil field production systems has a major negative impact on the productivity and asset integrity. For monitoring microbial SRB populations, the conventional NACE-TM0194 method; based on the most probable number theory (MPN) and serial dilution technique, is still followed where it can take up to 28 days to be completed. Thus, there
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Fichter, Jennifer, Geddy Hamblen, Chris Janes, Elizabeth J. Summer, Elizabeth J. Summer, and Abigail Mills. "Use of a Methodological Panel to Identify the Source of Problematic Microbial Contamination in an Oil Shale Field." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09019.

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Abstract An oil shale field was found to exhibit classic signs of a heavy microbial burden, including incidences of hydrogen sulfide production, downhole and surface microbially influenced corrosion, downhole pump and surface equipment fouling and fracturing fluid and drilling mud degradation. Over 140 samples, including formation core material, drilling muds, fracturing fluid source waters, production well samples, samples collected from failed pipe surfaces and samples from salt water disposal facilities, were collected in a comprehensive survey. Microbial activity was measured in parallel u
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Zhu, Xiangyang, Abdullah H. Wadei, and Husam S. Khanfar. "Investigation of Microbial Sources in Corrosion of Crude Pipelines and Processing Facilities." In MECC 2023. AMPP, 2023. https://doi.org/10.5006/mecc2023-19973.

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Abstract Microbiologically influenced corrosion (MIC) has been determined to be the leading cause of corrosion in pipelines and equipment in a crude oil processing facility. A high number of corrosion-causing microorganisms have been detected in the on-the-plot pipes and facilities, crude oil flow lines and trunk lines. To determine the source of corrosive microorganisms in crude transportation pipelines and processing facilities, production water samples, injection seawater samples, and downhole samples were analyzed using conventional most probable number (MPN) method to enumerate viable gen
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Igwe, Chijindu Ikechukwu, Paschal Chizuruoke Eze, and Miracle Izuchukwu Eze. "Design and Analysis of a Supercritical Metal-Water Reactor for Hydrogen Gas Production." In Africa International Conference on Clean Energy and Energy Storage. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-bitq6w.

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In this study, a supercritical metal-water reactor for hydrogen production was designed, simulated, and analysed. As the world urgently seeks to transition towards sustainable energy, hydrogen stands out as a pivotal solution in this shift. This project aims to fill knowledge gaps related to the transition to supercritical conditions through comprehensive analysis, thereby contributing to the advancement of clean energy technologies. Mechanical and thermal properties suitable for a supercritical metal-water reactor were modelled and simulated in SolidWorks 2022, utilizing plots and mesh result
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Hendrix, David E. "The Influence of Water Cycle Chemistry in the Failure of Waterwall Tubes in a High Pressure Boiler Due to Hydrogen Attack." In CORROSION 1995. NACE International, 1995. https://doi.org/10.5006/c1995-95613.

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Abstract This paper describes three case histories concerning the similar failures of waterwall tubes in two 1800 psig (12 MPa) boilers from hydrogen attack. The paper discusses the laboratory failure analyses conducted, the effects of previous "window" repairs and boiler water chemistry on the failures, the repair procedures developed for replacement tube sections to minimize future hydrogen-attack failures, and the inspection techniques used to detect hydrogen damage in unfailed tubes. Specific corrosion mechanisms and circumstances leading to the hydrogen attack failures are proposed, and t
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Flounders, Emer C., and Marshall K. Judges. "Corrosion Condition Evaluation of Reinforced Concrete Tanks in the National Aquarium in Baltimore." In CORROSION 1994. NACE International, 1994. https://doi.org/10.5006/c1994-94284.

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Abstract Two oval shaped reinforced concrete tanks built one over the other, exhibited significant concrete damage in addition to cracking. The annular space between the walls of the tanks are filled with man made sea water for marine life habitation. Cracks were observed on the walls and the floor slabs. It was suspected that the cracks may be active and that a change in width would occur over time, allowing access of chloride saturated sea water to the reinforcing steel. A detailed field survey was performed to evaluate the condition of the tanks. Select cracks were monitored to determine wh
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Jesus, Richard De, Charmille Keith Abesamis, Glenn Hanson Co, and Joniel Lance Tan. "Quantifying Carbon Dioxide in Biochar Concrete Using Thermogravimetric Analysis." In IABSE Symposium, Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches. International Association for Bridge and Structural Engineering (IABSE), 2025. https://doi.org/10.2749/tokyo.2025.3166.

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<p>In this study, concrete with biochar was investigated for its carbon sequestration capability. Biochar was used as a partial replacement of concrete in 3%, 6%, and 10% replacement by weight. Concrete cylinder specimens were cured under water for 28 days, then placed in an open-air area for 21 days for CO2 exposure. Quantification of carbon dioxide trapped in concrete was measured using thermogravimetric analysis (TGA). Compression and split tension tests were also performed to verify that the incorporation of biochar in concrete did not compromise its strength. SEM-EDX was also perfor
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Bandeira, Merlin C. E., Rogaciano M. Moreira, Felipe S. Assunção, et al. "Reducing Conservatism on Corrosion Prediction to Oil Production and Transportation Based on Laboratory Test and Data Analysis Considering PH2S, PCO2, pH, Shear Stress and BSW." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-19407.

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Abstract The present work intends to build up the knowledge on oil effect on carbon steel corrosion rates by evaluating the results of Rotating Cage and Submerged Impingement Jet immersion tests carried at moderate pressures 2.5 MPa, 25 to 50 °C, shear stress from 25 to 175 Pa, in brines containing CO2, H2S and CH4 with two levels of water cut: 20 and 60%. The results indicate temperature effect is stronger on BSW 60% and that shear stress had no influence on CR. On environments with 0.001 MPa of H2S Partial pressure at 50 °C the CR were below 0.05 mm/y whereas without H2S CR were 4x higher. N
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Gopal, Madan, and Sathish Rajappa. "Effect of Multiphase Slug Flow on the Stability of Corrosion Product Layer." In CORROSION 1999. NACE International, 1999. https://doi.org/10.5006/c1999-99046.

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Abstract Corrosion Experiments were carried out under iron carbonate scale-forming conditions in a large diameter, multiphase flow system. Both oil/water and oil/water/gas slug flows were studied at pressures up to 0.79 MPa and temperatures of 60 °C and 80 °C. It was found that with increasing iron concentration, the corrosion rates were reduced to negligible values in oil/water flows. However, significant corrosion was seen in slug flow with clear evidence of damage to the corrosion product layer due to impact and possible collapse of gas bubbles and a considerable reduction in the layer thic
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Agi, Damian T., Hani A. E. Hawa, and Alexander W. Dowling. "Equation-Oriented Modeling of Water-Gas Shift Membrane Reactor for Blue Hydrogen Production." In Foundations of Computer-Aided Process Design. PSE Press, 2024. http://dx.doi.org/10.69997/sct.152308.

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Water-gas shift membrane reactors (WGS-MRs) offer a pathway to affordable blue H2 generation/purification from gasified feedstock or reformed fuels. To exploit their cost benefits for blue hydrogen production, WGS-MRs� performance needs to be optimized, which includes navigating the multidimensional design space (e.g., temperature, feed pressures, space velocity, membrane permeance and selectivity, catalytic performance). This work describes an equation-oriented modeling framework for WGS-MRs in the Pyomo ecosystem, with an emphasis on model scaling and multi-start initialization strategies to
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Reports on the topic "MPN water analysis"

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Hammond, Sharon L., Henry C. Jefferson, and Samuel Cucinell. Analysis of Wounds by Evaporative Water Loss in Man. Defense Technical Information Center, 1994. http://dx.doi.org/10.21236/ada290327.

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J.K. McCoy. ANALYSIS OF DEGRADATION DUE TO WATER AND GASES IN MPC. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/862234.

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López Mayher, Cristina. Gender and Water in AquaFund. Edited by Celia Bedoya del Olmo, Kleber Machado, and Leticia Ortega Oropeza. Inter-American Development Bank, 2025. https://doi.org/10.18235/0013472.

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Women and girls use water for domestic activities and home-caring for vulnerable family members, as well as taking care of small cattle and agricultural production. Given their active use of water, women tend to be truly knowledgeable about current water sources, their quality and reliability, and any restrictions on their use. On the other hand, men use water for productive activities. Although women supply almost half of all agricultural labor in low-and middle-income countries, their agricultural productivity is on average 20 percent to 30 percent lower than male farmers. Therefore, agricul
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Beck, Aaron. NAPTRAM - Plastiktransportmechanismen, Senken und Interaktionen mit Biota im Nordatlantik / NAPTRAM - North Atlantic plastic transport mechanisms, sinks, and interactions with biota, Cruise No. SO279, Emden (Germany) – Emden (Germany), 04.12.2020 – 05.01.2021. Gutachterpanel Forschungsschiffe Bonn, 2021. http://dx.doi.org/10.3289/cr_so279.

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The coastal and open oceans represent a major, but yet unconstrained, sink for plastics. It is likely that plastic-biota interactions are a key driver for the fragmentation, aggregation, and vertical transport of plastic litter from surface waters to sedimentary sinks. Cruise SO279 conducted sampling to address core questions of microplastic distribution in the open ocean water column, biota, and sediments. Seven stations were sampled between the outer Bay of Biscay and the primary working area south of the Azores. Additional samples were collected from surface waters along the cruise track to
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Barasa, Violet, and Linda Waldman. Exploring the Intersection of Sanitation, Hygiene, Water, and Health in Pastoralist Communities in Northern Tanzania. Institute of Development Studies (IDS), 2022. http://dx.doi.org/10.19088/ids.2022.004.

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This paper explores access to water, sanitation, and health in pastoral communities in northern Tanzania. It argues that the concept of gender, used on its own, is not enough to understand the complexities of sanitation, hygiene, water, and health. It explores pastoralists’ views and perspectives on what is ‘clean’, ‘safe’, and ‘healthy’, and their need to access water and create sanitary arrangements that work for them, given the absence of state provision of modern water, sanitation, and hygiene (WASH) infrastructure. Although Tanzania is committed to enhancing its citizens’ access to WASH s
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Alokhina, Tetiana, and Vadym Gudzenko. Distribution of radionuclides in modern sediments of the rivers flowing into the Dnieper-Bug Estuary. EDP Sciences, 2021. http://dx.doi.org/10.31812/123456789/4617.

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The article presents the results of large-scale studies of the content and distribution of natural and man-made radionuclides in the sediments of the rivers flowing into the Dnieper-Bug estuary. The article also presents the results of the granulometric analysis of the surveyed water bodies. The data about natural radioactive elements in the sediments rivers flowing into the Dnieper-Bug estuary obtained in this research are demonstrated moderate specific activity, which, however, clearly correlates with the granulometric composition of sediments. The 137Cs determined by us is contained in the
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OLUWASANYA, Grace, Ayodetimi OMONIYI, Duminda PERERA, Manzoor QADIR, and Kaveh MADANI. Unmasking the Unseen: The Gendered Impacts of Water Quality, Sanitation and Hygiene. United Nations University Institute for Water, Environment and Health (UNU INWEH), 2024. http://dx.doi.org/10.53328/inr24gar011.

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This report investigated the interplay between water quality, sanitation, hygiene and gender by examining distinct variables of water quality and their varying impacts on gender like reported water-related illnesses of males and females, and the consequences of water quality, sanitation, and hygiene on menstrual hygiene practices, particularly focusing on a low- and middle-income country- LMICs. This report presents the key findings, outlining a framework and guidance for examining gender-specific impacts stemming from poor water quality and WASH practices through a piloted case study in Abeok
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Noel, Erika, Giulia Mattana, and Anthony McGoron. A Comparative Analysis of Nanoparticle Sizing Techniques for Enhanced Drug Delivery Applications. Florida International University, 2025. https://doi.org/10.25148/fiuurj.3.1.5.

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Nanoparticle-based drug delivery systems hold promise for improving therapeutic efficacy and targeting precision. However, a critical challenge in their development is ensuring size stability, as particle size directly influences biodistribution, cellular uptake, and drug release profiles. This study establishes a streamlined methodology to assess nanoparticle size consistency by comparing three widely used characterization techniques: Dynamic Light Scattering (DLS), Transmission Electron Microscopy (TEM), and Nanoparticle Tracking Analysis (NTA). Two types of nanoparticles were analyzed: 100
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Tangpasuthadol, Varawut, and Amarawan Intasiri. Silica reinforement of natural rubber by sol-gel process in latex. Chulalongkorn University, 2005. https://doi.org/10.58837/chula.res.2005.32.

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Beside carbon black, silica powder is the other important filler used to reinforce various colored rubber products. In order to improve the compatibility between silica particles and rubber phase, this work has focused on preparing an NR composite, reinforced by silica generated inside the NR matrix or ‘in situ’. The silica particle was formed by a sol-gel process of tetraethoxysilane (TEOS) dispersed in NR latex. The latex used was concentrated latex having 60% rubber content, and already contained water and ammonia, two ingredients needed for the sol-gel reaction. The conversion of TEOS to s
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Downing, W. Logan, Howell Li, William T. Morgan, Cassandra McKee, and Darcy M. Bullock. Using Probe Data Analytics for Assessing Freeway Speed Reductions during Rain Events. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317350.

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Rain impacts roadways such as wet pavement, standing water, decreased visibility, and wind gusts and can lead to hazardous driving conditions. This study investigates the use of high fidelity Doppler data at 1 km spatial and 2-minute temporal resolution in combination with commercial probe speed data on freeways. Segment-based space-mean speeds were used and drops in speeds during rainfall events of 5.5 mm/hour or greater over a one-month period on a section of four to six-lane interstate were assessed. Speed reductions were evaluated as a time series over a 1-hour window with the rain data. T
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