bluuebunny/crossref_metadata_2025_split huggingface dataset:
Experimental and Mathematical Research of Convection Heat Transfer for a High Integral Finned Tube Heat Exchanger
Authors: Kassim M. S. , Jaber H. S. , Hashim H. S. 
Published: November 2021

Abstract
This research exhibits an experimental and numerical investigation for the characteristics of heat transfer by utilizing an integral and smooth high finned tube and shows how the integral high fins affect in improving the transfer of heat. In the experimental work, the experimental rig consists of a cold water loop, a hot air loop and the trial part which is a concentric parallel flow double pipe heat exchanger. The first test smooth tube made of brass has external and internal diameter (32 mm) and (22 mm), respectively, the second test section made of the same material has external fins, the third test section possesses internal fins, and the fourth test section has internal and external fins. The dimensions of the fin are (2 mm) in thickness, (2 mm) in height and pitch (2.5 mm) center to center. And, the water flow rates are (6, 8, 10, 12 and 14 L/min). The inlet water to the trial tube was at temperatures (15, 25, 35, and 45oC). The investigational results manifested that the air side heat transfer coefficient of the smooth tube was lesser than the integral high finned tube. The ratio of improvement when using the integral high finned tube was (47.5%, 60.5% and 67.5 %). Numerical simulation was applied on the current heat exchanger to study both the transfer of heat and the field of flow by using ANSYS, FLUENT15 package. Steady state, Newtonian flow, incompressible and three dimensional analyses were assumed. The comparison between experimental work and numerical results elucidated a good agreement.
Environmental ethics analysis on household waste management behaviour
Authors: Zulfa V , Hasanah U , Utami P A 
Published: November 2021

AbstractThis study aims to analyze the effect of environmental ethics knowledge on household waste management behaviour in Jatibening Village, Pondok Gede District, Bekasi City. The research data collection was conducted from October to November 2020. The data was collected using a questionnaire from 127 homemakers. Respondents were selected using a simple random sampling method. The data that has been collected is processed and analyzed using descriptive statistics and inferential statistics, namely simple linear regression. The simple linear regression analysis results indicate that Environmental Ethics Knowledge has a significant positive effect on Household Waste Management Behavior ((3 = 0.215, p <0.05). These results indicate that increasing knowledge about environmental ethics can improve the behaviour of homemakers in managing household waste. Thus, it is hoped that homemakers can increase their knowledge of environmental ethics to improve their behaviour in managing household waste.
Integrating ecology and zero runoff in a vertical village residential design in West Jakarta
Authors: Prihandrijanti M , Kristanto H M , Apritasari Y D 
Published: November 2021

Abstract
Diminishing availability of urban land in metropolitan cities such as Jakarta resulting in high-density settlements, which impacted the quality of life of the urban village communities. One of the government’s efforts to solve this problem is by building subsidized apartments. However, this effort mainly focused on the land scarcity and the required housing aspects, while ecological and environmental roles toward the life quality of the dwellers are often set aside though very influential. On the other hand, Jakarta is very vulnerable to natural disasters related to water, such as flooding caused by stormwater runoff which cannot be accommodated by the insufficient capacity of the surrounding environment. Therefore, the development of urban settlements in Jakarta has to pay more attention to integrate ecology and zero runoff management from the design conception phase. A vertical village residential design in West Jakarta that integrates these two aspects through ecological architecture elements (nature, water, human and environment) was proposed as a role model design for vertical village housing. Various water design features have been creatively designed and integrated into the landscape and building elements resulting in zero runoff and an ecologically significant built environment.
Determination of load capacity of BOD pollutant in Cisadane River with Qual2kw model & its effect on DO parameters
Authors: Rahmandani I , Hendrawan D , Astono W 
Published: November 2021

Abstract
The research to determine the carrying capacity of pollutant loads in the middle to downstream Cisadane River segment started from Jl. Teuku Umar, Tangerang and ends at Muara Tanjung Burung, Tangerang Regency with a research time starting from March – June 2021. Increased land-use change due to human and industrial activities so that population growth and limited residential land make watersheds a target for land conversion. The purpose of this study is to identify sources of pollutants that have the potential to contaminate the Cisadane River in the middle to downstream segments, analyze water quality and pollutant load capacity, the Cisadane River in the middle to downstream segments along 34 km. The method used for identification of pollutant sources is carried out by conducting field surveys, water quality analysis is carried out by SNI and compared with quality standards according to Peraturan Pemerintah No. 22 of 2021, as well as analysis of the Pollutant Load Capacity (PLC) BOD and DO using the QUAL2Kw model. The results of identifying potential pollutant sources in the middle to a downstream segment of the Cisadane River are dominated by settlements, agriculture, industry, and other domestic activities, namely restaurants and stalls. The results of water quality analysis for BOD parameters ranged from 2.51 mg/L - 5.1 mg/L, and DO range from 5.4 mg/L – 7,2 mg/L. BOD parameters from all points 1-2 meet the quality standard class 2 (3 mg/L) & points 4-6 do not meet the quality standard. The DO parameter is still in good condition because the more significant the DO value, the waters are in good condition. The high levels of BOD in the Cisadane River are influenced by domestic waste that enters the river, and the land is dominated by built-up spaces as settlements, schools, hotels and malls. Land use around the river is very influential on the load of pollutants that enter the river. The lowest DTBP of the Cisadane River for BOD is 22497,9 kg/day, and the highest is 33201,6 kg/day. The decrease in the concentration of BOD load must be lowered in the Cisadane River by 29% - 42%.
Optimisation of degreemont water treatment package on Kedung Halang water treatment plant, Bogor, West Java
Authors: Gabrielle H , Kusumadewi R A , Ratnaningsih  
Published: November 2021

Abstract
To provide drinking water in Bogor Regency, PDAM Tirta Kahuripan has several Water Treatment Plants (WTP) Kedung Halang WTP. Kedung Halang WTP consists of two water treatment packages, Indisi and Degreemont, with an average production of 37.3 L/s and 83.9 L/s, respectively. The purposes of this research are to evaluate the performance of the operating unit and process on the Degreemont Package and to provide optimisation recommendations based on the evaluation result. Steps in this research include evaluating the existing condition, providing recommendations, and analysing the quality of water produced. The evaluation found that one of the parameters did not fulfil the design criteria: the G.Td value on coagulation. The evaluation result of maximum flow rate is 125 L/s on intake, 150 L/s on coagulation, 130 L/s on flocculation and sedimentation, and 200 L/s on filtration. Thus, the optimum flow rate that can be operated is 125 L/s. The turbidity of the water produced has met the drinking water standard according to Minister of Health Regulation No. 492 of 2010, with removal efficiency above 95%. According to the result, it can be said that Degreemont Package is qualified to be applied as a drinking water treatment.
Investigating the effect of PET plastic bottle strips on the strength and compressibility properties of clayey soil
Authors: Niyomukiza J B , Bitekateko A , Nsemerirwe J , Kawiso B , Kiwanuka M 
Published: November 2021

Abstract
The production of plastic bottles by the manufacturing industry has increased drastically over the last six decades across the globe. This rapid production has led to the generation of many waste plastic bottles, thus causing environmental pollution. About 180 tonnes of plastics are generated daily in Kampala, the capital city of Uganda, and around 50% is dumped into the Kiteezi landfill. Instead of putting pressure on the landfill, these plastic bottle wastes could be reused in stabilizing soils with poor engineering properties. The current study investigates the engineering properties of clayey soil reinforced with Polyethylene-terephthalate waste plastic bottle strips. In order to achieve the objectives of the study, the geotechnical and engineering properties of the soil reinforced with waste plastic bottle strips at 0.1, 0.2, 0.3 and 0.4% of the dry unit weight of the soil and non-stabilized soil were determined by conducting laboratory tests, such as particle size distribution, Atterberg limits, compaction test and California Bearing Ratio. The results revealed that the California Bearing Ratio of the soil reinforced with Polyethylene-terephthalate waste plastic bottle strips increased with the increase in the percentage of Polyethylene-terephthalate waste plastic bottle strips up to 0.3%. Beyond 0.3%, a drop in California Bearing Ratio was observed. It indicates that 0.3% Polyethylene-terephthalate waste plastic bottle strips is the optimum percentage for stabilizing low plasticity clayey soils.
Community sustainability and environmental quality improvement on studentified area in Malang City, Indonesia
Authors: Situmorang R , Sudikno A , Surjono S , Wicaksono A D 
Published: November 2021

Abstract
Studentification occurs in a college town so that the large number and activity of students and those related to universities affect the condition of the city. The impact of students consists of socio-cultural and economic changes that can be seen in physical changes. In the previous research, these changes often result in conflicts between students and residents, less service for residents, and a worsening physical environment. This study aims to find the contributions of the studentification model in Malang city as one of the college towns in Indonesia that occurs in the area adjacent to the campus Brawijaya University Malang City. The method used in this research is Structural Equation Model Partial Least Square. Data were taken through in-depth interviews and online surveys to 32 neighbourhood leaders as respondents. Some of the findings show additional thought contributions to studentification theory, namely: community sustainability and environmental quality improvement.
Community based solid waste management to reduce open burning incidents: A case study of waste treatment facility in Gajahmungkur District, Semarang City
Authors: Ramadan B S , Huboyo H S , Sutrisno E , Sari A M , Samadikun B P , Hardyanti N , Karmilia A 
Published: November 2021

Abstract
Ngudi Kamulyan is a domestic waste treatment facility which imply 3R (reduce, reuse, recycle) in Gajahmungkur District, Semarang City-Indonesia. This facility is already in status quo due to the lack of human resources and this Covid-19 pandemic. Therefore, this facility has chances to improve its services after the pandemic. The activation of this facility can reduce the number of mismanage waste and open burning incidents. Performance improvement planning is carried out based on the five aspects of waste management. This study was conducted using qualitative analysis and questionnaire survey to the neighbourhood leaders and facility officers. Community participation planning was done with activities focused on improving the 3R habit in the community. There is a need for continuous supervision from related parties, such as Gajahmungkur District Semarang City Government and the Environmental Agency of Semarang City. That supervision will be necessary to make the waste treatment facility and operational activities of 3R could run consistently.
Evaluation of flood risk as a step in determining the “Acceptable Risk” criteria. Case study: Dengkeng River, Klaten, Central Java
Authors: Sarminingsih A , Hadiwidodo M 
Published: November 2021

Abstract
The planning of a flood control system in Indonesia is based on the planning criteria issued by the Ministry of Public Works. Flood control planning is based on flood discharge with a specific return period depending on the order of the river and the number of protected populations. Flood events in areas where the flood control system has been planned continue to occur almost every year, meaning that the probability of being exceeded is not as planned. This study is intended to evaluate the criteria for the magnitude of the designed flood discharge in flood control planning that considers the acceptable risk. Potential risks are evaluated against system reliability. The probability of failure of the flood control system occurs if the resistance is smaller than the load expressed as a performance function. By knowing the performance function associated with the level of flood risk, then the flood discharge can be selected with the appropriate return period according to the acceptable risk.
On the issue of protection of yellow lupine from anthracnose in the field
Authors: Drahanskaya M G , Savvicheva I K , Lishchenko P Y , Adamko V N 
Published: November 2021

Annotation
Over the years of many years of research in the field, it was found that the creation of completely anthracnose-resistant varieties of yellow lupine (Lupinus Luteus L) is not possible. But at each stage of the pathological process, various defense mechanisms operate that determine the resistance or susceptibility of plants to diseases. There is a passive defense associated with morpho-biological features. A positive role in the control of anthracnose of early and mid-season forms with limited second-order shoots, fast-growing ones with anthocyanin coloration, xeromorphic leaf type, dark green color of vegetative organs, intensely colored seeds (2c, 4c, 2d), different corolla colors (numbers 52-87-2113 and 1477-1-17) and a flower (varieties Iputsky and Rodnik). Observations have shown that a waxy coating on a bean or a thick layer of hairs that helps water roll off, a more spreading bush that provides quick ventilation and moisture removal, reduces anthracnose infestation. It was found that the passive defense mechanism is largely due to the totality of morpho-biological characteristics and the nature of their interaction. Different infestation with anthracnose depending on the sowing density was shown: under conditions of sparse sowing (600 thousand seeds / ha), it averaged 4.6% during flowering and 8.0% at bean formation, and in a denser cenosis (1.2 mln. grain / ha), respectively, 18.7 and 62.0%. An active plant defense mechanism has been established and is being studied -hypersensitivity - this is an increased sensitivity of living cells of a plant - a host in places where a pathogen penetrates and its rapid death with the formation of necrosis. It was revealed that necrotic forms of yellow lupine are less affected by anthracnose during all phases of plant growth and development and, especially, during the formation of beans. At the site of penetration of the pathogen, an orange spot develops, around which a roller of dead tissue is formed, i.e., the pathogen’s access to living cells stops at the expense of which it feeds. The selected material with bean necrosis, without external sporulation, reduces the infectious load in the infected crops.
Quality Of Spelt And Cold Seeds With Pesticide-Free Cultivation
Authors: Buyankin N I , Krasnoperov A G , Chernitsyna V E 
Published: November 2021

Abstract
Under the conditions of the Kaliningrad region, without the use of fertilizers and fungicides, a yield of 32.2 centners / ha of spelled Alcoran and 27.8 centners / ha of naked spelled Gramme 2U was ensured. Using the methods of biological, washout and centrifugation, Berman, ELISA, the authors studied the phytopathological, qualitative and physicochemical state. According to the results of the comprehensive assessment, it was found that spelled is distinguished by its unpretentiousness to soil conditions, cultivation technology, and nitrogen nutrition. Spelled grains of the Alcoran variety are covered with spikelet scales, which protects the grain from the harmful effects of the environment, insects and pathogenic organisms. The difference between filmy spelled and naked spelled in the degree of infection with the fungus Fusarium sp. Was established. and Alternaria sp. Considering the bare-grain spelled of the Gramme variety, the Fusarium infestation turned out to be 2 times higher than the filmy spelled of the Alcoran variety.
The Search For Source Material Of Phacelia Tanacetifolia Benth For Breeding For Fodder Productivity
Authors: Kosolapov V M , Cherniavskih V I , Dumacheva E V , Konoplev V V , Tseiko V I , Markova E I 
Published: November 2021

Abstract
The genetic resources of wild populations of the valuable forage crop Phacelia tanacetifolia Benth. in different ecological conditions of the southern Srednerusskaya Upland were studied. Selected source material for breeding for fodder productivity.In the Vorskla natural-territorial complex the individuals which on the average 6.9-27.7% exceeded the individuals in other cenopopulations by height and bush size. The forms with high potential fodder qualities are distinguished: low hairiness of leaves and stems, dry matter content - 20.9-21.6%, protein - 19.4-20.4%, crude fat - 2.1-2.3%, soluble carbohydrates - 34.6-36.5%, green matter yield - 2,32-2,44 kg*(m2)-1, seeds - 0,032-0,038 kg*(m2)-1. The seeds of the best forms were collected and transferred to the collections of Federal Williams Reserch Center for Forage Production and Agroecology, All-Russian Research Institute of Phytopathology, Belgorod State University for breeding of new disease resistant forage varieties.
Results of the study of the modern gene pool of narrow-leaved lupine
Authors: Ageeva P A , Potchutina N A , Matyukhina M V , Gromova O M 
Published: November 2021

Abstract
Narrow-leaved lupine (Lupinus angustifolius L.) is a valuable leguminous fodder crop adapted to a wide range of soil and climatic conditions. Modern fodder varieties of narrow-leaved lupine have a low content of alkaloids in the grain of 0.02-0.10%, a high protein content of 32.0-38.0% and a number of other nutrients valuable for fodder production. In the collection nursery 2018-2020 Under the conditions of a changed climate, forage varieties and specimens of two morphological groups were studied: branched with different degrees of blocking of lateral branching and spike-like. The results of the structural analysis of the gene pool for the main elements of productivity and its morphobiological features are presented. According to the productivity of plants in the indeterminate group, the varieties USN 53-236, Narrow-leaved 53-02 and Hybrid 1215 (7.7-6.1 g / plant) were distinguished; by weight 1000 pcs. seeds - varieties Belorozovy 144 and Crystal (136.4-120 g); by the number of seeds in a bean - Belorozovy 144 and Narrow-leaved 53-02 and the Belarusian cultivar Alliance (4.1-4.2 pcs.). In the group of spike-like forms, the cultivar Epigonal 1215 (3.2 g / plant) was distinguished by grain productivity, by the weight of 1000 seeds - the Belarusian cultivar Talent (102.2 g). As a result of the assessment of the collection material in terms of the height and weight of plants, a variety meter was identified that exceeded the control, variety Vityaz, by 15.0-27.7 cm: Belorozovy 144, SN 78-07 and Hybrid 1215. The growing season of the studied numbers varies in a wide range of 80- 101 days. The group of spike-shaped numbers is characterized by ultra-early maturity (71-75) days.
Methods Of Biologization Of Grain-Grass Crop Rotations And Their Influence On Fertility Of Soddy-Podzolic Soil Of The Forest Zone
Authors: Shpakov A S , Brazhnikova T S 
Published: November 2021

Abstract
On soddy-podzolic soils of the forest zone of the European part of Russia, grain-grass crop rotations are most common for the production of voluminous fodder, food and fodder grain [1,2]. In such crop rotations, the link of perennial grasses is the main factor in the reproduction of soil fertility and the production of high-quality voluminous fodder. Improvement of the grass-field link of such crop rotations based on the cultivation of new species and varieties is an urgent scientific and practical task [3,4,5].
An important way to reduce the cost of reproduction of soil fertility in grain-grass crop rotations is the maximum use of plant residues, including straw and green manure crops, which makes it possible to exclude the use of organic fertilizers on certain arable land or, if necessary, to conduct a dung-free economy [6,7,8]. Improvement of the link of perennial grasses, saturation of crop rotations with legumes, maximum use of plant residues and green manure as organic fertilizers allows to reduce the cost of reproduction of soil fertility, to produce high-quality voluminous and concentrated feed [9,10].
Influence of lactic acid and cellulolytic bacteria on the physicochemical parameters of alfalfa silage
Authors: Bogdanova A , Payuta A , Alekseev A , Konovalov A 
Published: November 2021

Abstract
The study is aimed at studying the effect of a microbiological preparation consisting of lactic acid bacteria, thermophilic streptococci and cellulolytic bacteria on the quality of alfalfa silage with different dry matter content. Determined pH, content of organic acids, dry matter and nutrients, including carbohydrates. Inoculant application increased crude protein, crude fat and crude fiber and reduced water-soluble carbohydrates in silage. The preservation of nutrients in the test samples was higher than that of the control. pH corresponded to optimal values; however, lactic acid fermentation proceeded more intensively in the sample with an increased dry matter content.
Dependence of the buffer capacity on the chemical composition of dry matter of alfalfa
Authors: Stepanova G V , Volovik M V 
Published: November 2021

Annotation
It is shown that the buffer capacity of dry matter of alfalfa of the first cut in the flowering phase is 5.66-5.94 mol / liter. With an increase in the content of crude protein and crude ash by 1%, it increases by 0.14-0.40 and 0.49-0.86 mol / liter, respectively, with an increase in the content of soluble carbohydrates by 1%, it decreases by 1.44 mol / liter … The dry matter of the second cut alfalfa has a high forage quality. The content of crude protein from the stemming-beginning of budding phase to the flowering phase is in the range of 23.44-20.20%, crude ash 9.24-8.10%, while the content of crude fiber is reduced to 22.92-29.01%, dry matter - up to 20.84-26.00%. The buffer capacity of dry matter reaches 9.69-7.23 mol / liter. The main influence on the buffer capacity is exerted by the mineral composition of the dry matter. An increase in the content of crude ash by 1% increases the buffer capacity of dry matter by 0.55 ± 0.16 - 1.36 ± 0.14 mol / l, an increase in the content of crude protein by 1% increases the buffer capacity by 0.15 ± 0.06 - 0.39 ± 0.14 mol / liter.