Publisher: Heighten Science Publication Corporation (Total: 23 journals)   [Sort by number of followers]

Showing 1 - 23 of 23 Journals sorted alphabetically
Annals of Civil and Environmental Engineering     Open Access   (Followers: 2)
Annals of Clinical Hypertension     Open Access  
Archive of Food and Nutritional Science     Open Access   (Followers: 1)
Archives of Asthma, Allergy and Immunology     Open Access   (Followers: 1)
Archives of Biotechnology and Biomedicine     Open Access   (Followers: 1)
Archives of Pharmacy and Pharmaceutical Sciences     Open Access   (Followers: 2)
Archives of Surgery and Clinical Research     Open Access   (Followers: 1)
Heighpubs Otolaryngology and Rhinology     Open Access  
Insights in Biology and Medicine     Open Access  
Intl. J. of Clinical and Experimental Ophthalmology     Open Access   (Followers: 1)
Intl. J. of Clinical Anesthesia and Research     Open Access   (Followers: 2)
J. of Cardiology and Cardiovascular Medicine     Open Access   (Followers: 2)
J. of Clinical Intensive Care and Medicine     Open Access  
J. of Clinical Nephrology     Open Access   (Followers: 1)
J. of Clinical, Medical and Experimental Images     Open Access  
J. of Forensic Science and Research     Open Access   (Followers: 4)
J. of Neuroscience and Neurological Disorders     Open Access   (Followers: 1)
J. of Novel Physiotherapy and Rehabilitation     Open Access   (Followers: 4)
J. of Oral Health and Craniofacial Science     Open Access  
J. of Plant Science and Phytopathology     Open Access  
J. of Radiology and Oncology     Open Access   (Followers: 2)
J. of Sports Medicine and Therapy     Open Access  
J. of Stem Cell Therapy and Transplantation     Open Access  
Similar Journals
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Annals of Civil and Environmental Engineering
Number of Followers: 2  

  This is an Open Access Journal Open Access journal
ISSN (Online) 2574-0350
Published by Heighten Science Publication Corporation Homepage  [23 journals]
  • Evaluation of Soil Water Characteristic Curves of Boron added
           Sand-bentonite Mixtures using the Evaporation Technique

    • Authors: Sukran Gizem Alpaydin*; Yeliz Yukselen-Aksoy
      Abstract: Compacted bentonite or sand-bentonite mixtures are considered buffer/backfill materials in the engineering barriers of deep geological repositories for high-level nuclear waste (HLW) disposal in many countries. The design and long-term functionality of nuclear repositories have critical importance for environmental safety and public health. The initially unsaturated buffer material could become re-saturated long after following the sealing of the repository. Although the saturation degree of the buffer might decrease due to high temperatures and evaporation, it tends to increase with groundwater intrusion. Therefore, the soil water characteristic curves (SWCCs) for these unsaturated soils are a key factor in geotechnical engineering. Yet, the determination of SWCCs can be time-consuming and prone to inaccuracies. The HYPROP (Hydraulic Property Analyzer) evaporation technique is a preferred method for accurately determining water retention curves of soils. This reliable method was applied to estimate the water retention curves for sand-bentonite mixtures in the presence of boron minerals. Known for their minimal thermal expansion and commonly used in various industries, boron minerals may improve the thermal stability of sand-bentonite mixtures. The findings revealed that the boron addition increased the water retention capacity of the 10% bentonite mixtures but had a negligible impact on the 20% bentonite mixtures.
      PubDate: 2024-04-25 10:58:18
       
  • Drinking-water Quality Assessment in Selective Schools from the Mount
           Lebanon

    • Authors: Walaa Diab; Mona Farhat, Marwa Rammal, Chaden Moussa Haidar*, Ali Yaacoub, Alaa Hamzeh
      Abstract: The present study aims to assess and compare the quality of drinking water according to WHO Standards and then illustrate the resulting diseases. Eight samples have been taken from selective different schools in the Mount Lebanon Region. The laboratory tests of the collected samples were performed to determine various physical (e.g., temperature, pH, electrical conductivity, etc.), chemical (Ca+2, Cl-, Fe, Mg2+, NO3, Na+, SO2-4), and microbial such as E. coli, coliform, and non-coliform. Several techniques were used for the analysis including Atomic Absorption Spectrometry, Flame Photometer, and Total Organic Carbon (TOC). The resulting water quality was compared with the standard limits. Each school has different defects according to specific contamination that existed. To save local residents and according to the results of this study, regular monitoring for water quality was proposed; besides more water filtration plants should be installed to provide safe drinking for children’s health.
      PubDate: 2024-04-02 16:36:56
       
  • Isolation and Influence of Carbon Source on the Production of
           Extracellular Polymeric Substance by Bacteria for the Bioremediation of
           Heavy Metals in Santo Amaro City

    • Authors: Leila Thaise Santana de Oliveira Santos*; Kayque Frota Sampaio, Elisa Esposito, Elinalva Maciel Paulo, Aristóteles Góes-Neto, Amanda da Silva Souza, Taise Bomfim de Jesus
      Abstract: The city of Santo Amaro (Bahia, Brazil) gained visibility among the scientific community due to the contamination of the Subaé River by lead and cadmium from the PLUMBUM Mineração e Metalurgia Ltda industry, on the banks of the river in 1956, which produced lead ingots The present work aimed to investigate the adsorption capacity of heavy metals (Pb and Cd) of EPS produced by bacterial species from the Subaé River, for possible future application of these biopolymers in bioremediation processes in areas impacted by the aforementioned heavy metals. Subaé river water was collected for physical-chemical analysis and bacterial isolation. It was verified that all isolated bacteria produced an expressive amount of Exopolysaccharide (EPS). Thus, the optimization of this production in different sugars (sucrose, glucose, and mannitol) and in three different pHs: 5.5; 6.5, and 7.5. All bacteria produced EPS in large quantities and the best sugar was sucrose at pH 7.5. In order to use the EPS for the bioremediation area, the adsorption test of lead and cadmium was carried out by the isolated EPS. 0.5 g of the EPS was dissolved in 50 ml of deionized water, then the solutions of metals, lead acetate, and cadmium sulfate (procedure performed separately) were incubated at 28 °C for 16 h after that period, and were centrifuged. Samples were filtered to separate the insoluble EPS and the filtrates obtained were used in the quantification of the metals by atomic absorption (FAAS- Flame Atomic Absorption Spectrometry). Bacillus spp., Bacillus cereus, Staphylococcus spp., and Serratiamarcescens, all showed tolerance to the tested metals, due to the efficiency in the adsorption capacity of the EPS, and it was possible to distinguish seven genera, Klebsiella pneumonia, Pseudomonas aeruginosa, Lysinibacillus spp. to be used in the bioremediation of environments contaminated with heavy metals.
      PubDate: 2024-02-09 17:16:05
       
  • Management and use of Ash in Britain from the Prehistoric to the Present:
           Some implications for its Preservation

    • Authors: Jim Pratt
      Abstract: The properties that make the wood of fast-grown Ash pliable, strong, and resilient have been exploited by man for thousands of years, and are illustrated by reference to the probable use of Ash timber for tools, arms, and transport by the Roman Army of Occupation in Britain two thousand years ago. Militarily organized and disciplined, the Roman Army was responsible for changing the face of Britain with huge infrastructure projects that required significant numbers of tools, equipment, and fuel, in addition to the arms it used to maintain control over the fractious tribes of the north. The extent to which it maintained supplies of this valuable resource by managing its woods, possibly by coppicing, is discussed and raises the question as to the degree of genetic selection involved in coppicing.Ash: Fraxinus excelsior: extinction: prehistoric and historic uses: Roman army military use of Ash.
      PubDate: 2024-01-23 11:10:52
       
  • Research on the Connotation Development of Civil Engineering Materials
           Courses in Universities of Applied Sciences, a High Level in China

    • Authors: Lei Fan*
      Abstract: German universities of applied sciences have provided a large number of technical talents to society, and have made significant contributions to the enhancement of German education and industry. Drawing on the professional construction experience of German universities of applied sciences, this paper summarizes the path of civil engineering materials courses in China's high-level applied universities. The proposals for curriculum reform were discussed. Colleges and universities can cultivate professionals with strong hands-on abilities, strong exploration abilities, and a scientific research spirit. In addition, this paper puts forward that China needs to make changes from three levels: the country, universities, and teachers. Based on learning from the experience of collaborative education between teaching and scientific research in German universities, we have embarked on a road of education with China characteristics.
      PubDate: 2023-12-27 15:36:46
       
  • Current Situation of Municipal Solid Waste Management in the Urban and
           Peri-urban of Phnom Penh, Cambodia

    • Authors: Yim Mongtoeun*; Lim Sousan, Hoy Sereivathanak Reasey, Timothy John A Pasicolan, Paulo N Pasicolan
      Abstract: Currently, the amount of solid waste is increasing in the world, especially in developing countries. Although Solid Waste Management (SWM) involves and collaborates with many stakeholders, management is still flawed. SWM in the urban and suburbs of Phnom Penh has encountered a number of obstacles and challenges. Seeing these problems, the government has decided to reform the solid waste management in Phnom Penh in 2019. After the reform, the provision of waste collection, transportation, and cleaning services in urban and peri-urban has changed significantly, while the urban and peri-urban receive collection services 95% and 80%, respectively. To be more precise one study on the current situation of SWM in urban and peri-urban Phnom Penh was conducted to understand the current situation and to identify challenges of SWM for the urban and the peri-urban in Phnom Penh. Two kinds of data were collected 1) preliminary data was collected from interviewing people in target areas by using structured questionnaires, and 2) secondary data was obtained from existing various sources. 330 respondents were selected with qualitative and quantitative analysis by using SPPS 28.0.1.1 and Microsoft Excel 2019. People use plastic bags instead of bins, triggers, and bags to store the waste.79.5% of the people are willing to pay the collection fee. It was found that the situation of SWM is better, however, the collection time is still blurred. SWM in Phnom Penh has faced four main challenges: financial, road infrastructure, landfill, and people's participation. SWM in urban and peri-urban, still have some problems such as the packaging and storage of the waste. and the problem of scavengers tearing the waste bags makes the garbage clutter.
      PubDate: 2023-12-21 15:26:58
       
  • Durability of Lumber Pretreatment Compared to Posttreatment Processes

    • Authors: Solomon I Ubani*
      Abstract: Aim of study: In terms of treatment, it is essential to consider the correct use of preservatives and epoxy resin. Lumber pretreated with these substances can protect the wood from biodegradation or insect attack for exceeding three-year life expectation periods.Methods: To further increase durability and structural integrity, Posttreatment like painting or lamination on wood surfaces helps keep moisture out and carries a higher yield compared to traditional methods. In addition, chemical treatments to make timber resistant to fungal infestations as well has been gaining traction recently which makes it possible for lumber to be used in even more applications safely than ever before. Results: Thus, proper treatment plays a major role when considering the implications of using lumber as a resource both structurally and functionally over time. Conclusion: Lumber remains one of the most sought-after resources due to its versatility; likewise finding ways how impart maximum longevity necessitates research into new treatments available so that we can optimally exploit such abundant supplies without compromising the durable nature of good quality timber source.
      PubDate: 2023-10-03 11:34:56
       
  • Microbial Conversion and Utilization of CO2

    • Authors: Ge-Ge Wang; Yuan Zhang, Xiao-Yan Wang*, Gen-Lin Zhang
      Abstract: Rising greenhouse gas emissions have contributed to unprecedented levels of climate change, while microbial conversion and utilization of CO2 is a practical way to reduce emissions and promote green manufacturing. This article mainly summarizes several natural CO2 pathways that have been discovered, including the Calvin cycle, the reduced tricarboxylic acid (rTCA) cycle, the Wood–Ljungdahl (WL) pathway, the 3-hydroxypropionate/4-hydroxybutyrate (HP/HB) cycle, the dicarboxylate/4-hydroxybutyrate (DC/HB) cycle, the 3-hydroxypropionate (3HP) cycle, the reductive glycine (rGly) pathway, and artificially designed carbon fixation pathways includes the CETCH cycle, the MOG pathway, the acetyl-CoA bicycle, and the POAP cycle. We also discussed applications of different carbon fixation enzymes, notably ribulose-1, 5-diphosphate carboxylase/oxygenase, pyruvate carboxylase, carbonic anhydrase, as well as formate dehydrogenase. This paper further addressed the development of photosynthetic autotrophs, chemergic autotrophs and model bacteria Escherichia coli or yeast produced main products for CO2 fixation through metabolic engineering, such as alcohols, organic acids, fatty acids and lipids, bioplastics, terpenoids, hydrocarbons, and biomass.  Future studies on CO2 microbial conversion should focus on improving the efficiency of carbon fixation enzymes, metabolic modules of the carbon sequestration pathway, and intracellular energy utilization. Coupled microbial and electrochemical methods for CO2 fixation, in addition to biological fixation, show considerable promise. 
      PubDate: 2023-09-04 23:55:09
       
  • Sea Level Rise Impacts in Coastal Areas and Possible Mitigation
           Engineering Approaches

    • Authors: Silvano Focardi; Milva Pepi*
      Abstract: Coastal areas are subjected to both natural and man-made actions, leading to a deterioration of coastal structures. Climate change has had a heavy impact on these areas in recent years. An important consequence of these actions is sea level rise. This phenomenon is the most important cause of coastal erosion, a serious problem with ecological, economic, and human health consequences. The countermeasures to contrast this phenomenon and the degradation of the entire coastal system, are represented by engineering interventions. These basically consist of approaches for adaptation to sea level rise, namely protection, retreat, and accommodation. Variations and site adaptation of these actions can involve procedures of no intervention; advancement; protection; retreat; accommodation; and ecosystem-based adaptation. While these procedures have provided coastal benefits and protection, in the long run, they may cause further coastal disruption and further aggravate the situation. Such interventions, therefore, require an accurate assessment of the advantages and disadvantages. However, it is certainly necessary to proceed with actions aimed at mitigating climate change, respecting the rules in a sustainable way.
      PubDate: 2023-07-21 12:19:47
       
  • Design and construction of solar-powered smart garbage disposal unit

    • Authors: Olowosebioba AA*; Folorunsho AD, Akindele BA, Akingbade FS, Andrew IO, Olaniyi GA
      Abstract: Cities with developing economies experience exhausted waste collection services, and inadequately managed and uncontrolled dumpsites; which is an ongoing challenge and many struggles due to weak institutions and rapid urbanization. The purpose of the research is to design and construct a smart garbage disposal system using a two-way power supply unit (that is, the electrical power supply unit and solar power supply unit) based on Arduino Nano that utilizes ATMEGA 328p microcontroller. Two pairs of ultrasonic sensors, the pair that faced upward detects the presence of garbage disposal agent at a close distance of (5 - 50) cm and then opens the lid while the other pair faced the inside of the container senses when the container is filled up and then closes the container until it is emptied are used.
      PubDate: 2023-06-09 14:35:55
       
  • Understanding RNG Gas Quality through Execution at Newtown Creek WRRF RNG

    • Authors: Pradheep Kileti*; Brian Barkwill, Devinder Mahajan
      Abstract: With each passing year a new record for global emissions is set (1) and policymakers and utility companies must embrace all avenues for decarbonization of energy. Universal adoption of electrification for every building and home by 2050 (2) is not practical, a balance must be struck between an equitable transition to cleaner energy supplies and ensuring uninterrupted, safe delivery of energy to utility customers. Renewable Natual Gas (RNG) is a molecule-for-molecule replacement of traditional geological natural gas with tangible life cycle emissions reductions. California continues to lead the way, initially starting with the low carbon fuel standard (LCFS) which aimed to reduce the carbon intensity of transportation fuel, and subsequently, Senate Bill 1440, which established RNG procurement goals including 12% RNG by 2030 (3). Other States are starting to adopt similar changes such as Oregon’s Senate Bill 98 and Colorado’s Senate Bill 21-264. As utilities attempt to transition the energy network, they must never compromise system safety and reliability. Recognizing that raw biogas has dangerous levels of contaminants of concern (COC) and must be conditioned to pipeline quality, its important utility companies better understand the methods with which methane is extracted and the testing protocols used to confirm performance. This paper highlights the equipment, processes, and testing regime National Grid and its partner the New York City Department of Environmental Protection (NYC DEP) deployed as part of its Newtown Creek RNG project, which successfully began injecting RNG into the NYC gas distribution network in October 2022.
      PubDate: 2023-05-25 16:30:47
       
  • Determination of the capture efficiency of a direct-flow cyclone

    • Authors: Flisyuk OM*; Martsulevich NA, Toptalov VS
      Abstract: In addition to conventional cyclones, direct-flow cyclones are often used in industry to separate dust and gas systems, despite the fact that in some cases they are inferior to other types of cyclones in their characteristics. 
      PubDate: 2023-04-26 12:36:10
       
  • Evaluation of factors affecting the quality of luxury residential
           buildings using the fuzzy BWM method

    • Authors: Marziyeh Sadat Moayeri; Seyed Azim Hosseini*, Mehdi Nani, Hamidreza Rabieifar, Jafar Asadpour
      Abstract: The construction sector consists of a collection of activities related to buildings and engineering constructions of all kinds. It is the close relationship between this sectors with other economic sectors, which distinguishes it. Therefore, it is an important indicator of the movement of the national economy, but this sector faces major risks, especially in the construction of luxury residential buildings, and these risks may affect the implementation of the project and may lead to increase costs, affect the quality and sometimes delay delivery. This study was carried out to evaluate the factors affecting the quality of luxury residential buildings in Iran using the fuzzy best-worst method (fuzzy BWM). The BWM method provides a consistent structural comparison of factors through best and worst criteria. And this method extended using a fuzzy set to address the ambiguity from the decision-maker’s judgment. The evaluation consists of five criteria: Strength and stability, physical comfort and mental peace, visual proportions and beauty, safety, security and environment, and welfare and health. To determine the fuzzy criteria’ weights, the nonlinearly constrained optimization problem was applied. The result indicated that the best and the worst criteria were Visual proportions and beauty and welfare and health.
      PubDate: 2023-04-13 17:10:47
       
  • Economic feasibility of using agricultural wastes for catalyst development

    • Authors: Olayomi Abiodun Falowo; Babatunde Oladipo
      Abstract: Resource recovery provides an opportunity to transform limited and abundant materials in form of waste into biobased products. In the production system, this technique could offer an economic means to utilize wastes to generate valuable products which are fundamental to a sustainable economy.
      PubDate: 2023-03-24 15:37:27
       
  • Impact of dyes used in the mat on groundwater in and around Pattamadai,
           Tirunelveli district, Tamilnadu

    • Authors: Gopikumar S; Sundararajan S, Allwyn Kingsly Gladston J, Antony Vasantha Kumar C, Hari Babu K, Jeyakumar K
      Abstract: The main focus of this study concentrates on evaluating the quality of groundwater in and around the zone of pattamadai where the production of the mat in this region is a landmark industry, which is using dyes in a larger volume. The primary work starts with the collection of water samples from 13 boreholes and 13 hand-dug wells in different time intervals in the month of March 2021, which is a dry season. As per standards the water quality parameters have been evaluated and observed to be within the range. All the physico-chemical parameters for the samples have been studied for boreholes and hand-dug wells as all the values are observed to be within the range and are highlighted in the results.
      PubDate: 2023-02-14 16:33:34
       
 
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Publisher: Heighten Science Publication Corporation (Total: 23 journals)   [Sort by number of followers]

Showing 1 - 23 of 23 Journals sorted alphabetically
Annals of Civil and Environmental Engineering     Open Access   (Followers: 2)
Annals of Clinical Hypertension     Open Access  
Archive of Food and Nutritional Science     Open Access   (Followers: 1)
Archives of Asthma, Allergy and Immunology     Open Access   (Followers: 1)
Archives of Biotechnology and Biomedicine     Open Access   (Followers: 1)
Archives of Pharmacy and Pharmaceutical Sciences     Open Access   (Followers: 2)
Archives of Surgery and Clinical Research     Open Access   (Followers: 1)
Heighpubs Otolaryngology and Rhinology     Open Access  
Insights in Biology and Medicine     Open Access  
Intl. J. of Clinical and Experimental Ophthalmology     Open Access   (Followers: 1)
Intl. J. of Clinical Anesthesia and Research     Open Access   (Followers: 2)
J. of Cardiology and Cardiovascular Medicine     Open Access   (Followers: 2)
J. of Clinical Intensive Care and Medicine     Open Access  
J. of Clinical Nephrology     Open Access   (Followers: 1)
J. of Clinical, Medical and Experimental Images     Open Access  
J. of Forensic Science and Research     Open Access   (Followers: 4)
J. of Neuroscience and Neurological Disorders     Open Access   (Followers: 1)
J. of Novel Physiotherapy and Rehabilitation     Open Access   (Followers: 4)
J. of Oral Health and Craniofacial Science     Open Access  
J. of Plant Science and Phytopathology     Open Access  
J. of Radiology and Oncology     Open Access   (Followers: 2)
J. of Sports Medicine and Therapy     Open Access  
J. of Stem Cell Therapy and Transplantation     Open Access  
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JournalTOCs
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762
 


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