Water Puddles Research Articles

Perancangan Sistem Penyaliran Tambang Pada PIT XYZ PT Karya Bhumi Lestari Jobsite PT Kartika Selabumi Mining Desa Kedang Ipil Kota Bangun II Kabupaten Kutai Kartanegara Provinsi Kalimantan Timur

Water is one of the things that is very influential in the mining process, mining water is water that is at the location and/or comes from the process of mining activities, both mining and processing, including runoff water in the mining area. Surface runoff water is rainwater that overflows into mining areas and is not a result of mining activities. The open pit mining method will cause the formation of a large basin so that it has the potential to become a water storage area, both from surface runoff and groundwater. During extreme weather conditions with high rainfall, water from surface runoff can inundate the ground floor and cause the mining front to become muddy, which can hamper mining activities. Handling waterlogging in mining forts requires good pumping performance, as well as re-planning the mine drainage system for the mine progress area. So that mining activities run smoothly and the mining front is free from puddles of water after rain, the drainage system must be well designed. Based on research that has been carried out, the total area of ​​the Catchment Area is 52.14 Ha with a runoff discharge of 82,567.79 m³/month. The planned discharge using the MF-290 Pump with RPM 1600 is, 290.00 m³/hour or 123,540.00 m³/month. After comparing the MF-290, MF-385 and DND-200 pumps, the MF-290 pump was selected for use. This is because the fuel consumption of the MF-290 is smaller so it saves costs and it is also deemed sufficient to use the MF-290 pump. Pump Ratio on the MF-290 pump April 6.71. May 3.93, June 6.44, July 6.36 and August 8.83, which means the pump is safe to use because the ratio is >1.

Utilization of Palm Shell Ash as a Filler in Making AC-WC Type Porous Asphalt

The background to the research that will be carried out is that the large amount of standing water on the road pavement in each rainy season results in disturbances to motorists' comfort. This is due to impermeable road pavement and poor drainage along the road. Porous asphalt can increase rainwater absorption, thereby reducing puddles on the road surface. Porous asphalt is a new breakthrough in the world of road pavement to reduce the appearance of puddles of water when it rains. Porous asphalt is also designed to have high porosity so that water can flow through side channels and a waterproof base layer to prevent water from seeping into the subbase layer and road body so as to minimize puddles of water on the road surface which often occur after rain and disrupt the smooth flow of traffic. cross. Advances in road pavement technology have encouraged researchers to conduct research using palm shell ash (fly ash) as a filler in porous asphalt mixtures. The use of palm shell ash is expected to increase the stability value and have large cavities so that water can pass through the road surface, as well as to reduce palm oil waste in Indonesia. The objectives of this research are 1. To find out the optimum asphalt content value in porous asphalt mixtures, 2. To know the results of using palm shell ash at 0%, 1% and 2% as a filler for porous asphalt mixtures in flexible road pavement. The research method is Marshall and Permeability Testing. The tests that will be carried out on a laboratory scale use an AC-WC hot mix asphalt system with guidance, namely the basics of asphalt concrete road construction. The research results showed that by adding palm shell ash as a filler in making AC-WC type porous asphalt, it showed that the stability value was higher, while the permeability value was lower, meaning that the addition of palm shell ash to the porous asphalt mixture did not have a significant effect because it was smaller. air voids in the mixture. The addition of palm shell ash to the porous asphalt mixture increases the stability value which can increase the ability of road construction to accept loads, but the pavement layer is not permeable and water flows over the surface more slowly.

Estudo de caso do projeto e execução do sistema de drenagem do gramado de futebol do Estádio Bezerrão

In soccer stadiums, every aspect is important. Infrastructure, stands, changing rooms, artificial lighting and, without a doubt, the pitch, which is vital if matches are to run smoothly and without risk. One of the problems that reduces playability is water puddles, i.e. the waterlogging of the pitch caused by rainwater. This problem is common in Brazil due to the equatorial tropical climate, which is characterized by high temperatures and intense rainfall, the latter causing, in some situations, cancellations of matches with inconvenience to fans and spectators and even delays in championships. Another problem caused by excessive accumulated water is damage to the health of the grass, as poor drainage prevents the correct development of the root system due to the lack of oxygen in the soil, limiting the absorption of nutrients, which are important for the development of the grass, and making the grass maintenance and mowing process more difficult. Within this context, the drainage system on a soccer pitch is essential. This system is divided into surface and subsurface. Therefore, this paper presents and discusses the drainage system of the Bezerrão Stadium soccer field, located in the Administrative Region of Gama, Federal District.

Factors associated with mosquito control among construction workers: A systematic review.

Workers in the construction industry frequently work in construction sites with numerous areas that can potentially accumulate water, such as tanks, wet cement surfaces, or water puddles. These water collection sites become ideal breeding grounds for mosquito infestation, which leads to a higher prevalence of mosquito-borne diseases, especially malaria and dengue among construction workers. Despite that numerous factors have been identified in controlling vector-borne diseases, the specific factors that influence mosquito control at construction sites have yet to be explored. This systematic review aims to determine the factors associated with mosquito control among construction workers. Primarily, articles related to factors associated with mosquito control among construction workers were collected from two different online databases (ScienceDirect and EBSCOhost). Two independent reviewers were assigned to screen the titles and abstracts of the collected data, stored in Microsoft Excel, against the inclusion and exclusion criteria. Afterwards, the quality of the included articles was critically assessed using the Mixed Method Appraisal Tool (MMAT). Of the 171 articles identified, 4 were included in the final review. Based on the thorough evaluation, mosquito-related knowledge, practical mosquito prevention measures, and Larval Source Management (LSM) were identified as vital factors associated with mosquito control among construction workers. The significant association between mosquito-related knowledge and control practices indicates higher knowledge linked to effective practices, particularly among female workers and those who were recently infected with malaria. Concurrently, there were notable challenges regarding sustainable preventive measures and larval control methods in construction settings. Implementing effective mosquito control, including knowledge and practice on mosquito control together with vector control, is highly required to suppress the expanding mosquito population. It is recommended that employers provide continuous mosquito control education and training to their employees and reward them with incentives, while employees should comply with the guidelines set by their employers to ensure successful mosquito control and reduce the spread of mosquito-borne diseases in the construction industry.

Analysis of Knock Down Weir Stability Using Matlab Software

During the rainy season, there are still puddles of water in the village due to overflowing rivers and flooding due to landslides of embankments. Therefore, it is necessary to control the water and handle it quickly and precisely. Emergency Weir, which is ready to be installed, can be used to overcome this problem. It is named Knock Down Weir as Emergency Weirs that are effective, efficient, practical, can be arranged vertically, horizontally, can be stored and reassembled with 4 Forms of Arrangement and proven by Stability value > 1.5 based on the test on the support of wall roughness: hard stone, gravel, sand, clay and using Matlab application analysis. The simulation uses a model arrangement, namely: 1). Model L filled with sand + water; 2). The model I filled with sand + water; 3). Model L filled with water; 4). Model L filled with water. The result based on the Matlab application is obtained that the arrangement of model no. 1 (L shape) is the most stable against hard rock, gravel, sand and clay as support.

Analysis of Wear-Coated Asphalt Concrete (AC-WC) Modified With Addition of Steel Slag and Resin for Road Conditions Inlowed In Tide

Causes of damage to road construction, among others due to the influence of excessive vehicle traffic loads, temperature, water (puddles), and pavement construction that does not meet technical requirements. Water (puddle) is one of the causes of damage or reduces durability for road construction with asphalt pavement. This study aims to examine the effect of asphalt mixture (AC-WC) with the addition of resin and steel slag aggregate on asphalt stability (AC-WC), Obtain Job Mix Design (JMD) for road conditions that are inundated by high tide and Assess the effect of immersion rob water against asphalt resistance (AC-WC) with the addition of resin and steel slag.In this research, it can be said that we play a role and participate in building prosperity in the advancement of transportation and the development of technological civilization, through continuous research that is adjusted to continuous research. We carry out research with the aim of developing science and technology and applying the reconstruction of science and technology to provide solutions to be able to solve environmental and societal problems, where local wisdom forms the basis of research.The research method used as a mix tester is the Marshall method, where from the Marshall test the results are obtained in the form of Marshall components, namely the volume weight of the test object, the value of stability, flow, voids in the mix (VIM), voids in mineral aggregate (VMA), void filled with asphalt (VFA), the thickness value of asphalt blanket or film and then can be calculated Marshall quotient. The last test was in the form of a Marshall immersion test. In the comparison of VIM, VMA and VFA above that for aggregate slag 25%, 50% and resin addition 5%, 7%, 10%, for resin content 5% and 10% did not meet specifications, however for 7% resin content meets the 2018 Revised Highways Technical Specifications. Based on the marshal test, there was only one that met the specifications of the binamarga, namely a test object with a resin composition of 7% by soaking for 7 days. The results of this study based on the Marshall test, the strength/stability value of the AC-WC asphalt mixture using a pen 60/70 asphalt mixture with steel slag and resin mining met the specifications. The stability value of asphalt AC-WC decreased with increasing variations in the resin content used in the mixture.

ANALISIS KAPASITAS AIR PADA SALURAN DRAINASE DI JALAN ANTASURA DAERAH PEGUYANGAN KAJA DENPASAR UTARA

ANALISIS KAPASITAS AIR PADA SALURAN DRAINASE DI JALAN ANTASURA DAERAH PEGUYANGAN KAJA DENPASAR UTARA

The Relationship of Puddle Conditions and The Incident of Malaria in Waimaringi Village, Kodi Balaghar District, Southwest Sumba, East Nusa Tenggara

Malaria has been a health issue recently that can cause death. The high incidence of malaria is closely related to several factors. Such as during the rainy season where spring water flows stagnant, in puddles of rainwater on the ground, and in rock holes. In the dry season, groundwater sources decrease, causing puddles to form along rivers. These puddles of water are used as breeding places. The aim of the research is to determine the relationship between puddle water conditions and the incidence of malaria in Waimaringi Village. The type of research used was analytical observational with a cross-sectional approach. Population size 800 respondents. The sample was selected using purposive sampling, totaling 267 respondents. Data analysis used bivariate analysis with the Chi Square test at a significance level of α ≤ 0.05. The research results were found to be significant at 0.000 or smaller than 0.05, so H0 was rejected and H1 was accepted where there was a relationship between puddle water conditions and the incidence of malaria in Waimaringi Village.

Analisis Debit Banjir Sungai Ciujung Tol Merak Km 57 Kabupaten Serang

Ciujung River is located in Serang Regency, Banten, where the river is on the right and left sides of the Merak Toll Road connecting Jakarta-Serang. The length of the Ciujung River on the right side is 6.27 Km and the left side is 6.83 Km. Extreme rainfall that occurred in the last two years resulted in inundation of surrounding settlements and the Jakarta-Merak Toll Road at Km 57-59. The toll road was flooded with a depth of 1 meter caused by the overflow of the Ciujung River, which caused severe congestion during the rainy season and economic losses for local residents. The worst flood ever occurred in 2013 where almost 1 month there was a disaster on the Merak Km 57-59 toll road due to flood water puddles that were almost 1 m deep. This flood actually occurred long before 2013, it can even be said to be an annual flood for local residents who live on the banks of the river. But because water enters the Merak Toll Road which is a means of trade transportation that has high economic value, it has only been noticed the cause of this flood. This study aims to find the cause of flooding why it occurs only at the location of the 57-59 Km Toll Road and the completion of the flood using various variables such as river dimensions, rainfall, watershed area, etc. and analyzed using the HSS Snyder and ITB1 flood hydrograph methods.

Enhanced Water Puddle Segmentation and Detection Using DCU-Net

Enhanced Water Puddle Segmentation and Detection Using DCU-Net

PENYULUHAN DAN WORKSHOP PEMBUATAN LOTION ANTI NYAMUK DARI DAUN SEREH DAN DAUN PANDAN DI DESA GEDANGAN KECAMATAN GROGOL KABUPATEN SUKOHARJO

Gedangan Village is located in Grogol District, Sukoharjo Regency. During the rainy season, this village is often hit by floods. This situation causes many puddles of water which can become nests for mosquitoes. This problem is what causes the emergence of Dengue Fever (DHF) in the area. The aim of this activity is to provide education about dengue fever and provide training in making Anti-Mosquito Lotion using Lemongrass and Pandan Leaves. The method of this activity is carried out by providing education about Dengue Fever, preventing dengue fever using the herbal ingredients Lemongrass Leaves and Pandan Leaves as well as training in making Anti-Mosquito Lotion using TOGA plants taken from local villages. Participants were put into groups for training in making Anti-Mosquito Lotion. The success of the activity is by looking at the results of the training and analyzing the Pre-Test and Post-Test statistically. Community service activities were declared successful with a pre-test score of 78.28 and a post-test of 92.80 with a value of Sig.0.002.

Phytophthora spp. diversity in commercial nursery stocks shown through examination of plant health practices for growers and traders of ornamental plants

Management of Phytophthora in commercial plant nurseries is important for biosecurity of traded plants, and monitoring of incidence of this important plant pathogen is a prerequisite to prevent its spread. Potted plants showing Phytophthora spp. symptoms, and nursery irrigation and runoff water, were sampled from a commercial and a non-commercial nursery in Tuscany, Italy. The samples were processed to detect Phytophthora spp., using baiting, and molecular identification of obtained isolates. High Phytophthora incidence was shown in the commercial nursery. Twelve Phytophthora spp. were isolated from potted plants or nursery runoff water. Individual symptomatic potted plants were infected with up to four pathogenic Phytophthora spp. The water sampled from nursery drainage canals had the greatest Phytophthora species diversity, with less diversity in ‘flow-through’ water samples (irrigation water percolated through potted plants) and samples from water puddles inside the nurseries. This study showed high incidence of Phytophthora in the commercial nursery, and associated risk of spread of these pathogens within and outside nursery operations. Lack of appropriate disease management probably increases occurrence of these pathogens.

Penerapan Sistem Good Manufacturing Practices (GMP) Pada Proses Pembekuan Ikan Layur DI CV. Sinar Harapan Berau

The freezing industry requires a basic eligibility program to provide guarantees for a food safety system. The application of GMP or Good Manufacturing Practices in the food industry is a requirement to produce products that are safe for consumption. The aim of the study was to examine the application of GMP in freezing layur fish at CV. Sinar Harapan Berau and identify non-compliance factors in the implementation of GMP. The results showed that the application of GMP in CV. Sinar Harapan Berau has largely complied with the CPPOB guideline requirements. Based on the analysis of non-conformity, there are 14 aspects that are suitable and 4 aspects that are not suitable with the percentages of 77.8% and 22.2%, respectively. Several factors cause non-compliance with GMP, namely puddles of water on the road leading to the production site, the road has not been cemented, and without laying stones. There are no washing facilities in the toilet area, there is still rust on the tables and pans in the production area. CV. Sinar Harapan also does not yet have laboratory facilities for quality control and safety of raw materials, but only inspects organoleptically.

Desain lapisan Perkerasan Jalan Pada Ruas Jalan Desa Mbangga – Woloboa Kecamatan Wolowaru Kabupaten Ende

The Mbangga-Woloboa road section, Rindiwawo Village, Wolowaru District is included in the local road type with rigid pavement and a road width of 3 meters. Every year the condition of the Mbangga-Woloboa road section experiences damage, where several parts of the road have many holes and when it rains there are lots of puddles of water, which is very disturbing for road users. Even though the Ministry of Public Works, with the available funds, has repaired the existing damage by overlaying it repeatedly, it has not been able to solve the existing problem completely because the road condition has deteriorated again before it reaches its design life. Therefore, it needs to be redesigned by repairing the subgrade layer and replacing the road surface layer with new rigid pavement according to the load of vehicles passing through the road. So by using the AASHTO method, the traffic growth rate (i) of the planned road is 5.23% per year with collector road class. The effective Resilient Modulus (MR) value on the road section is 2770 psi with a CBR value of 1.87%, and DDT 2.70 kg/cm2. The thickness of the pavement layer is found to be D1 = 13 cm, D2 = 20 cm, and D3 = 41 cm.

Mosquito abundance and physicochemical characteristics of their breeding water in El-Fayoum Governorate, Egypt

ObjectivesThis study was conducted to identify the mosquito species and the physicochemical characteristics of their breeding sites in six districts in El-Fayoum Governorate, Egypt, during October and November 2020. MethodsUsing the dipping method, mosquito larvae were collected from forty-two different breeding sites, including irrigation channels, canals, agricultural puddles, sewage tanks, stagnant water puddles, and swamps. Water temperature, pH, alkalinity, nitrite, chloride, electrical conductivity (EC), and total dissolved solids (TDS) were measured for all the studied breeding sites. ResultsThe survey revealed the presence of nine mosquito species: Culex perexiguus (Theobald, 1901), Culex pipiens (Linnaeus, 1758), Culex antennatus (Becker, 1903), Culex theileri (Theobald, 1903), Anopheles multicolor (Cambouliu, 1902), Anopheles sergentii (Theobald, 1907), Ochlerotatus caspius (Pallas, 1771), Culiseta longiareolata (Macquart, 1838), and Uranotaenia ungiculata (Edwards, 1913), representing five genera. Out of these species, Cx. pipiens is the most abundant. Oc. caspius and Cx. antennatus revealed significant positive correlations with chloride, TDS, and EC. Cx. perexiguus only showed significant positive correlations with chloride. ConclusionMost of the recorded mosquito species are found to be able to tolerate different degrees of pollution in their breeding water. These data may contribute to establishing a database on mosquito vectors and their habitats and, hence, assist in planning and implementing the appropriate control measures in this region.

Larval morphology and natural history in two Minervarya species from Andaman Islands, with comments on a new phytotelmonous larval morphotype for the genus.

We studied the larval morphology and natural history of two species of Minervarya from the Andaman Islands of India. A recent assignment of Charles Darwins frog to the genus Minervarya opened up new questions on the systematic affinities and natural history of its enigmatic tadpoles. Originally described as Rana charlesdarwini Das, 1998, and long considered as Ingerana charlesdarwini, the tadpoles of this species were poorly understood and incomparable to those of other presumed close relatives based on an original brief description of its phytotelmonous tadpoles. Here we present a detailed redescription of the larval morphology of M. charlesdarwini based on genetically confirmed tadpoles. At the same time, we compared the external morphology of M. charlesdarwini tadpoles to that of its closest phylogenetic and sympatric congener, M. andamanensis, consequently reporting the first-ever larval description for M. andamanensis. For the first time also for minervaryan frogs, we record that M. charlesdarwini lays eggs on the inner walls of tree holes, and the tadpoles possess morphological adaptations for a phytotelmonous life. Their unique features, such as tail-to-body ratio >2.2, reduced labial tooth rows (LTRF 1/1), acutely pointed serrations in the jaw sheath, and the medial portion of the upper sheath broadly arched and that of the lower sheath U-shaped, justify adding a new larval morphotype to the genus Minervarya. In contrast, M. andamanensis breeds and undergoes development in ground water puddles and ponds, a common trait for other known minervaryan species. Furthermore, our study generates new knowledge on the amplexus, oviposition site, and early embryonic development in these species. The deeper understanding of the biology and habitat requirements contributes additional traits for future systematic and evolutionary studies, and helps guide conservation assessments for these two species endemic to a handful of islands in the Andaman Archipelago.

ANALISA PERMASALAHAN DAN RENCANA PELEBARAN SALURAN DRAINASE DI DAERAH JALAN CIMAHPAR

Flood control buildings or commonly known as drainage channels are a global element of the legacy of infrastructure to help facilitate community activities and are a major component of road support construction. The Jalan Cimahpar area which is the main road that connects to Jalan Pandu Raya, an area where the majority of the people sell and pass through the road is still facing various problems. Problems that are quite disturbing to the community are when there is high rainfall, there is a puddle of water on the shoulders and road bodies as a result of overflowing drainage channels that are not functioning properly, as a result, the busyness of the community and road users falters. The slope of the road and the accumulated sediment is also one of the factors that causes the drainage water to not function properly. Thus, it is necessary to expand the drainage channel that is able to accommodate puddles of water during high rainfall.

Drinking on the wing: water collection in polarotactic horseflies

Many insects detect water bodies by observing the linearly polarised light which is reflected from the water surface. Polarotactic horseflies exhibit acrobatic manoeuvres above the water and are able to plunge on its surface, collect a droplet and fly away. This behaviour is extremely fast and has not yet been analysed. We recorded the flight patterns and kinematics of drinking horseflies using a pair of high-speed cameras. The animals of both sexes are attracted to water puddles where they make short, millisecond pitstops to collect a droplet of water that is then presumably drank “on the wing”. Before the collection, the flies perform several low-altitude flybys above the puddle. After a few passes, the fly suddenly reverses its body orientation, decelerates, briefly touches the water surface and immediately flies away, usually with a droplet carried between its front legs. During the approach flight, the horseflies fly low but do not show any angular preference. Thus, they view the reflections from the sky, sun, or vegetation with a wide band of ventral ommatidia. Polarotaxis in drinking horseflies is a very robust visually guided behaviour, which operates at a broad range of intensities and various spectral compositions of reflected light.

Corrosion Detection and Surface Repair with Coatings on Condensate Storage Tanks Internal Surfaces

In the Nuclear power plant Krško, there are two single hull condensate storage tanks with floating diaphragm each containing up to 757 m3 of demineralized water. The main purpose of these two storage tanks is to provide a capacity of cooling water for cooling the reactor coolant system via steam generators with the use of auxiliary feedwater pumps. This is a very important function from the safety point of view and that is the reason that both storage tanks are listed as safety class 3 components. It is also possible to fill up the condensate system if other means are not available. Condensate storage tanks are subject to periodic testing and periodic inspections to determine the condition of the components. Both tanks are in operation since the start-up of the powerplant, are located outside, and are exposed to different degradation processes. There was a concern that the tanks are leaking because there were often small puddles of water near the tanks. There were no changes in the levels of tanks. The design of tanks is a single hull, so there is no indication if a small leak is present.In the outage 2018, both tanks were emptied and examined with NDE methods to find any corrosion damage of bottom plates and any untight spots on adjacent welds.The article is about the NDE methods that were used (Magnetic Flux Leakage, Ultrasonic and Vacuum Box inspection) to determine the condition of the floor plates and adjacent welds as well as the process of internal surface reparation with coatings. Process of coatings qualification for use in safety class components is also explained: dedication process for material up-grade from non-safety related to safety-related because CY tank linings are classified as safety-related according to RG 1.54, rev 2 and corresponding ASTM standards and NEK technical specification SP-A5001. All activities for surface repair with coatings shall comply with safety-related requirements. Also, extensive immersion tests with selected and specially defined parameters were performed in NEK chemical laboratory in order to select the most suitable coating system for surface repair of CY tank floor lining. Further details concerning immersion tests are presented below.

Implementing Vertical Drainage to Reduce Flood Risk at Settlement Area in Medan


 With the increasing number of residents in a city, there will be excessive exploitation of nature, uncontrolled land use changes and a decrease in the carrying capacity of the environment. These various results have a potential to increase the frequency and severity of flood disasters. Flooding is a problem for the town because it leads in losses of property and lives, the emergence of health issues, damage to different infrastructure facilities and infrastructure, among other things. Although the government has been developing a horizontal drainage system for years, it has yet to decrease urban flooding. Consequently, a new technique is required to overcome flooding, specifically the use of vertical drainage. In an attempt to improve the community's living conditions, this activity's goal is to reduce the risk of flooding in Kelurahan Pasar Merah Timur settlement area. The advantages of this program include an improvement in the community's quality of life as a result of less intense flooding following the installation of vertical drainage. According to the test, 2 liters of water can be drained into the aquifer channel every second by the vertical drainage. So it can be assumed that if there is a puddle of water that cannot be drained by horizontal drainage of 4000 liters or 4 m3, it will take 34 minutes to deliver the water into the aquifer layer.