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Rubber Plant Disease Diagnostic System Using Technique for Order Preference by Similarity to Ideal Solution

Procedia Computer science 2019年 161卷 484-492页

作者： Ramadiani M. Syahrir Ramadhani Muhammad Labib Jundillah Azainil Faculty of Computer Science and Information Technology Mulawarman University Samrinda Indonesia Magister Program of Information System School of Post Graduate Studies Diponegoro University Semarang Indonesia Faculty of Teacher Training and Education Mulawarman University Samarinda Indonesia

Data from the Plantation Office of East Kalimantan Province, the area of rubber plantations has decreased every year. One of the factors that make productivity of rubber plants low is the presence of pests and diseases. The time limit of an expert is an obstacle in identifying rubber plantations. To overcome this problem, we need an expert system that can identify rubber plant diseases such as an expert. This system was developed to be able to provide solutions in diagnosing rubber plant diseases such as White Root Fungus (Rigidoporus micropus), Upas Mushroom Disease (Corticium salmonicolor), Antraknosa Disease (Colletorichum gloeosporoides), Skin Necrosis (Fusarium sp.), And Cancer Lines (Phytoptora palmivore). This study uses the TOPSIS method. There are four variables used as assessment criteria in this study, namely: the level of damage to the root, the level of damage to the stem, the level of damage to the leaves and the level of damage to the tapping path or the intensity of tapping, with preference values from 0 to 100; none, Very Light Intensity (1), Mild Intensity (3), Medium Intensity (5), Weight Intensity (7) and Very Heavy Intensity (9). Each weight value C1= 0.3; C2= 0.22; C3= 0.28; C4= 0.2. The results of this study compare manual calculations and calculations on the system obtained 99.99% accuracy. This system is expected to help facilitate rubber farmers in identifying diseases and can help experts.

关键词： Rubber Plant Disease East Kalimantan TOPSIS Expert System

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Applicability of zirconium loaded okara in the removal and recovery of phosphorus from municipal wastewater 4

Applicability of zirconium loaded okara in the removal and r...

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4th International Forum on Sustainable Future in Asia, IFSFA 2019

作者： Nguyen, T.A.H. Ngo, H.H. Guo, W.S. Pham, T.Q. Cao, T.H. Nguyen, T.H.H. Master's Program in Environmental Engineering VNU Vietnam Japan University Luu Huu Phuoc My Dinh 1 residential area Nam Tu Liem Hanoi Viet Nam 15 Broadway UltimoNSW2007 Australia Graduate University of Science and Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Cau Giay Hanoi Viet Nam Faculty of Geology VNU University of Science 334 Nguyen Trai Thanh Xuan Hanoi Viet Nam

Recently, there is a new trend to consider wastewater as a precious resource. Since phosphorus is a limited non-renewable element, and MAP (Magnesium Ammonium Phosphate - MgNH4PO4.6H2O) is a valuable slow-release fertilizer, the recovery of phosphorous as MAP has received special attention from scientists all over the world. However, the application of this process with municipal wastewater is still a challenge, due to low concentration of phosphorus and high volume of municipal wastewater. This study investigates the potential of reclaiming MAP from municipal wastewater by combination of adsorption and crystallization. Soybean milk residue (okara) was loaded with Zirconium (Zr) to prepare the adsorbent (ZLO). Adsorption and desorption experiments were conducted in a semi-pilot scale ZLO packed colum system. Effects of P: N: Mg molar ratios, chemical sources and temperature on the formation of MAP were examined in an attempt to identify the optimal crystallization conditions. The attained precipitate was characterized using XRD, SEM, FTIR techniques. It was found that the ZLO packed column adsorption-desorption system could pre-concentrate phosphorus from municipal wastewater up to 28.36 times, fitting well the minimum requirement (50 mg P/L) for the economical MAP recovery. Up to 95.19% of dissolved phosphorus in desorption solution was recovered at pH = 9, Mg: N: P molar ratio = 2:2:1, using a combination of MgCl2.6H2O and NH4Cl. The harvested MAP exhibited high purity (92.59%), high P-availability (89% by mass), and extremely low levels of heavy metals. The results prove that it is viable to recover MAP from municipal wastewater by employing ZLO as adsorbent, followed by crystallization. This paves the way for mining phosphorus from municipal wastewater and reducing okara as an agricultural byproduct in a green way. © 2019 Published under licence by IOP Publishing Ltd.

关键词： Phosphorus

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Implementation Effectiveness of Mercury Elimination Policies in Artisanal Small-Scale Gold Mining

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IOP Conference Series: Earth and environmental science 2022年第1期950卷

作者： M R Sapulete H Effendi E Riani Machfud Natural Resources and Environmental Management Science Study Program Graduate School of IPB University West Java Indonesia Department of Community Medicine Faculty of Medicine Sam Ratulangi University North Sulawesi Indonesia Environmental Research Center IPB University West Java Indonesia Department of Aquatic Resources Management Faculty of Fisheries and Marine Sciences IPB University West Java Indonesia Department of Agriculture Industrial Technology Faculty of Agricultural Technology IPB University West Java Indonesia

This study evaluated the implementation effectiveness of mercury elimination policies in the Artisanal Small-Scale Gold Mining (ASGM) at Bolaang Mongondow District. A qualitative method used as an explanatory design through interviews and questionnaires. The data collected were analyzed using the Regulatory Gap Analysis method. Based on the data obtained, only 33% of respondents (community representatives) were aware of the mercury elimination policy. 75% of respondents (relevant agencies) have been aware of UU No. 11/2017 about the ratification of the Minamata Convention and the national action plan of the mercury elimination in gold processing in 2014-2018 ESDM (RAN-PPM PE 2014-2018 ESDM). 63% of respondents were aware of PP No. 21/2019 about the national action plan for reduction and elimination of mercury (PP 21/2019 RAN-PPM), and only 50% of respondents who were aware of PMK No. 57/2016 about the national action plan for controlling health impacts due to mercury exposure in 2016-2020 (PMK 57/2016 RAN-PDKAM). The average gap value based on the evaluation result of each policy was: -0.4 in RAN-PPM PE 2014-2018 ESDM, -0.24 in PP 21/2019 RAN-PPM, and -0.21 in PMK 57/2016 RAN-PDKAM. Therefore, the implementation of these policies is unsuccessful in overcoming mercury usage in the ASGM.

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Retraction notice to "Hydrological and climate impacts on river characteristics of Pahang River Basin, Malaysia" [ Heliyon 9 2023 e21573]

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Heliyon 2025年第1期11卷 e41351页

作者： Mohd Khairul Amri Kamarudin Mohd Ekhwan Toriman Noorjima Abd Wahab Mohd Armi Abu Samah Khairul Nizam Abdul Maulud Firdaus Mohamad Hamzah Ahmad Shakir Mohd Saudi Sunardi Sunardi Faculty of Applied Social Science University Sultan Zainal Abidin Gong Badak Campus 21300 Terengganu Malaysia. East Coast Environmental Research Institute (ESERI) University Sultan Zainal Abidin Gong Badak Campus Nerus 21300 Kuala Malaysia. Faculty of Social Sciences and Humanities National University of Malaysia 43600 Bangi Selangor Malaysia. Kulliyyah of Science International Islamic University Malaysia 25200 Kuantan Pahang Malaysia. Earth Observation Center Institute of Climate Change National University of Malaysia 43600 Bangi Selangor Malaysia. Department of Mathematics Defense Base Center National Defence University of Malaysia Sungai Besi Camp 57000 Kuala Lumpur Malaysia. Department of Environmental Health Institute of Medical Science Technology Universiti Kuala Lumpur Kajang Selangor Malaysia. Graduate Program on Environmental Studies Postgraduate School Universitas Padjadjaran Jl. Dipati Ukur No. 35 Bandung 40132 Indonesia.

[This retracts the article DOI: 10.1016/***.2023.e21573.].

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Cellulose microcrystalline: A promising ecofriendly approach to control Culex quinquefasciatus larvae

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The science of the total environment 2023年 901卷 165952页

作者： Sindoval Silva de Souza Alex Rodrigues Gomes Abraão Tiago Batista Guimarães Aline Sueli de Lima Rodrigues Letícia Paiva de Matos Juliana Dos Santos Mendonça Thiarlen Marinho da Luz Stênio Gonçalves da Silva Matos M Safiur Rahman Chinnasamy Ragavendran Sengottayan Senthil-Nathan Ajay Guru Md Refat Jahan Rakib Nabisab Mujawar Mubarak Md Mostafizur Rahman Thiago Lopes Rocha Abu Reza Md Towfiqul Islam Guilherme Malafaia Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil Laboratory of Toxicology Applied to the Environment Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento 25 km Zona Rural Urutaí GO Brazil. Laboratory of Toxicology Applied to the Environment Goiano Federal Institute - Urutaí Campus. Rodovia Geraldo Silva Nascimento 25 km Zona Rural Urutaí GO Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil. Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil. Department of Environmental Science and Disaster Management Noakhali Science and Technology University Noakhali 3814 Bangladesh. Saveetha Dental College and Hospitals (SIMATS) Saveetha University Chennai Tamil Nadu India. Division of Biopesticides and Environmental Toxicology Sri Paramakalyani Centre for Excellence in Environmental Sciences Manonmaniam Sundaranar University Alwarkurichi Tirunelveli Tamil Nadu 627 412 India. Department of Cariology Saveetha Dental College and Hospitals SIMATS Chennai 600 077 Tamil Nadu India. Noakhali Science and Technology University Noakhali Bangladesh. Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri Begawan BE1410 Brunei Darussalam Department of Biosciences Saveetha School of Engineering Saveetha institute of Medical and Technical Sciences Chennai India. Jahangirnagar University Dhaka-1342 Bangladesh. Laboratory of Environmental Biotechnology and Ecotoxicology Institute of Tropical Pathology and Public Health Federal University of Goiás Goiânia Goiás Brazil. Department of Disaster Management Begum Rokeya University Rangpur 5400 Bangladesh. Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil Post-Graduation Program in Conservation of Cerrado Natural

The growing use of synthetic chemical compounds/substances in vector control of mosquitoes, associated with their adverse effects on the environment and non-target organisms, has demanded the development of eco-friendly alternatives. In this context, this study aimed to evaluate the larvicidal action of different cellulose microcrystalline (CMs) concentrations and investigate their toxicity mechanisms in Culex quinquefasciatus fourth instar larvae as a model species. Probit analysis revealed that the median lethal concentrations (LC) for 24 h and 36 h exposure were 100 and 58.29 mg/L, respectively. We also showed that such concentrations induced a redox imbalance in the larvae, marked by an increase in the production of reactive oxygen species (ROS) and thiobarbituric acid reactive substances (TBARS), as well as a reduction in the activity of superoxide dismutase (SOD) and catalase (CAT). Furthermore, different alterations in the external morphology of the larvae were associated with the ingestion of CMs. On the other hand, exposure of adult zebrafish (Danio rerio) to LC24h and LC36h for seven days did not induce any behavioral changes or alterations mutagenic, genotoxic, biochemical, or in the production of cytokines IFN-γ and IL-10. Thus, taken together, our study demonstrates for the first time that the use of CMs can constitute a promising strategy in the control of C. quinquefasciatus larvae, combining insecticidal efficiency with an "eco-friendly" approach in the fight against an important mosquito vector of several human diseases.

关键词： Eco-friendly particles Ecotoxicity Larvicide assay Mosquitoes Vector control Zebrafish

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Improve Understanding and Dissemination of Disaster Management and Climate Change by Using Knowledge Management Systems

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IOP Conference Series: Earth and environmental science 2020年第1期426卷

作者： Wahyu Sardjono Harisno Widhilaga Gia Perdana Information Systems Management Department BINUS Graduate Program - Master of Information Systems Management Bina Nusantara University Jakarta Indonesia 11480 Post Graduate Program School of Environmental Science University of Indonesia Jakarta Indonesia

In Law Number 24 Year 2007 concerning Disaster Management, it is stated that the central government and regional governments are responsible for implementing disaster management, with an emphasis on preparedness and mitigation in dealing with natural disasters, as well as based on the provisions of article 1 of Presidential Regulation No. 46 of 2008 concerning the National Council on Climate Change that climate change is a change in average conditions of climate and / or climate diversity from one period of time to another as a result of human activity. However, the socialization of these two matters is not regulated in existing laws and regulations, so that the information dissemination plan and dissemination of the information must be carried out to the community itself. In line with developments in technology and information systems that have entered the era of media convergence, the acceleration of the process of spreading government programs can also be done by using this technology. The SECI method model (Socialization, Externalization, Combination, Internalization) was developed through implementation based on the 'Knowledge Management System Cycle' theory, so that a knowledge management system was formed. The results of research on community preparedness in the application of Knowledge Management Systems (KMS) for natural disaster preparedness and mitigation can be used to support the dissemination and dissemination of disaster management mitigation, global warming, and community-based climate change, including performance measurement of success.

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Production of Biogas from Organic Fruit Waste in Anaerobic Digester using Ruminant as the Inoculum 24

Production of Biogas from Organic Fruit Waste in Anaerobic D...

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24th Regional Symposium on Chemical Engineering, RSCE 2017

作者： Budiyono Manthia, Firliani Amalin, Nadya Hawali Abdul Matin, Hashfi Sumardiono, Siswo Department of Chemical Engineering Engineering Faculty Diponegoro University Semarang50275 Indonesia Master Program of Environmental Science School of Post Graduate Studies Diponegoro University Semarang50275 Indonesia

Organic waste, fruit waste and vegetable waste are the best substrate to produce biogas. Waste management system for producing biogas can be used as a solution with the waste problem by converting the wastes into biogas. This study is expected to review of the effect of substrate type and substrate composition for the volume of biogas produced. In this study, materials consist of fruit wastes (oranges, apples, papayas, and tomatoes), cow ruminant, urea, cow dung, Na2CO3 buffer, NH4HCO3 buffer, and distilled water with variations of the substrate materials, F/ W, and the buffer types. The addition of cow manure and Na2CO3 buffer with 1:2 of F/W, production of biogas is greater than variable which is used NH4HCO3 buffer and without the addition of cow dung. Variables with addition of cow dung with 1:1 of F/W and using Na2CO3 buffer, the result is greater than the variable using the same buffer but without the addition of cow dung and variables with 1:1 of F/W with the addition of cow dung and Na2CO3 buffer and variables with the same feed and without the addition of cow dung produce more biogases than variable which is the using NH4HCO3 buffer, 1:1 of F/W and without the addition of cow dung. © The Authors, published by EDP sciences, 2018.

关键词： Biogas

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Study of Biogas Production from Cassava Industrial Waste by Anaerobic Process 24

Study of Biogas Production from Cassava Industrial Waste by ...

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24th Regional Symposium on Chemical Engineering, RSCE 2017

作者： Budiyono Primaloka, Arindra D. Ardhannari, Listi Matin, Hashfi H.A. Sumardiono, Siswo Department of Chemical Engineering Engineering Faculty Diponegoro University Semarang50275 Indonesia Master Program of Environmental Science School of Post-Graduate Studies Diponegoro University Semarang50275 Indonesia

Biogas production processes from tapioca wastewater have several problems that cause the biogas production is not optimal, such as pH drop at beginning of the process because the rate of acid formation is too fast and the rate of starch wastewater degradation is too slow. Therefore, to obtain optimal biogas production it is required two-stage reactor. The purposes of this research were to (i) study the influence of one stage fermentation and two stage fermentation on biogas production, (ii) study the effect of buffer Na2CO3 on biogas production, and (iii) study the effect of methanogenic bacteria concentration on biogas production from cassava starch effluent. The first method of our research was hydrolysis process by "Saccharomyces cereviceae" as substrate activator. The second is the arrangement of pH and the last is process of methane production. The results showed that the highest biogas production is achieved at concentration of methanogenic bacteria 20% (v/v) that is equal to 2458 ml. At concentration of 8% (v/v) and 15% (v/v), biogas production was 2105 ml and 2117 ml. The addition of Na2CO3 can extend to 16 days with accumulation of 372 ml. While without the addition of buffer, biogas production period was only 9 days with accumulation of 620 ml. In semi continuous process, the analysis carried out every 3 days. Highest biogas production achieved in the variable addition of yeast with the accumulation 9329 ml. Without yeast, accumulation of biogas was 6831 ml. Yeast is use as substrate activator so it can accelerate the hydrolysis process and increased biogas production. The addition of Na2CO3 is increase the alkalinity so the pH drop did not occur early in the process. © The Authors, published by EDP sciences, 2018.

关键词： Yeast

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Late Miocene to Early Pliocene paleoceanographic evolution of the Central South Pacific: A deep-sea benthic foraminiferal perspective

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Palaeogeography, Palaeoclimatology, Palaeoecology 2024年 647卷

作者： Das, Sunil K. Mahanta, N. Sahoo, B. Singh, Raj K. Alvarez Zarikian, Carlos A. Tiwari, Manish Vats, Nishant Nihal Lamy, Frank Winckler, Gisela Middleton, Jennifer L. Arz, Helge W. Gottschalk, Julia Basak, Chandranath Brombacher, Anieke Esper, Oliver M. Farmer, Jesse R. Herbert, Lisa C. Iwasaki, Shinya Lembke-Jene, Lester Lawson, Vera J. Lo, Li Malinverno, Elisa Michel, Elisabeth Moretti, Simone Moy, Christopher M. Ravelo, Ana Christina Riesselman, Christina R. Saavedra-Pellitero, Mariem Seo, Inah Smith, Rebecca A. Souza, Alexandre L. Stoner, Joseph S. de Oliveira, Igor Venancio M.P. Wan, Sui Zhao, Xiangyu School of Earth Ocean and Climate Sciences Indian Institute of Technology Bhubaneswar Argul Jatni 752050 India International Ocean Discovery Program Texas A&M University College Station United States National Centre for Polar and Ocean Research Ministry of Earth Sciences Goa Vasco-da-Gama 403804 India Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven Germany MARUM–Center for Marine Environmental Sciences Bremen Germany Lamont-Doherty Earth Observatory Columbia University NY United States Leibniz Institute for Baltic Sea Research Warnemünde Germany University of Kiel Germany Department of Earth Sciences University of Delaware United States Department of Earth & Planetary Sciences Yale University United States Department of Geosciences Princeton University United States School of Marine and Atmospheric Sciences Stony Brook University United States Graduate School of Environmental Science Hokkaido University Department of Earth and Planetary Sciences Rutgers The State University of New Jersey United States Department of Geosciences National Taiwan University Taiwan Department of Earth and Environmental Sciences University of Milano-Bicocca Italy Laboratoire des Sciences du Climat et de l'Environnement LSCE Institut Pierre Simon Laplace IPSL CNRS-CEA-UVSQ France Climate Geochemistry Department Max Planck Institute for Chemistry (MPIC) Germany Geology Department University of Otago New Zealand Ocean Sciences Department University of California Santa Cruz United States School of Geography Earth and Environmental Sciences University of Birmingham United Kingdom Global Ocean Research Center Korea Institute of Ocean Science and Technology (KIOST) South Korea Department of Geosciences University of Massachusetts-Amherst United States Department of Geology Federal University of Rio de Janeiro Brazil College of Earth Ocean and Atmospheric Sciences Oregon State University United States Postgraduate Program in Geochemistry Departm

The bottom water conditions in the Central South Pacific (CSP) and associated changes in the Lower Circumpolar Deep Water (LCDW) and Antarctic Bottom Water (AABW) under warmer-than-present conditions need to be better understood. These water masses transfer their properties to the major ocean basins. We analyzed Late Miocene to Early Pliocene (5.6–3.6 Ma) marine sediment core sections from the CSP for benthic foraminifera, ice rafted debris (IRD), Ostracoda, planktic foraminifera Orbulina universa abundance, and organic geochemical proxies to assess the bottom water characteristics under warmer-than-present day conditions. A significant increase in IRD abundance between 5.3 and 4.9 Ma marks the Early Pliocene warm phase. The benthic foraminiferal assemblages indicate shifts in bottom water conditions over time in the CSP region. Between 5.6 and 5.3 Ma, predominantly oxygenated bottom water with moderate organic matter flux prevailed. This shifted to suboxic conditions with increased organic matter flux from 5.3 to 4.9 Ma. Subsequently, between 4.9 and 4.4 Ma, bottom water conditions alternated frequently between oxic and suboxic states. Enhanced bottom water formation and inflow of LCDW and AABW in the CSP during 4.4–4.0 Ma promoted oxygenated conditions, accompanied by low organic export flux. However, sluggish bottom water circulation from 4.0 to 3.6 Ma reverted to suboxic conditions, associated with increased carbon burial. Notably, productivity peaked intermittently between 5.3 and 3.6 Ma, as indicated by the occurrence of suboxic species assemblages and increase in the abundance of Orbulina universa, benthic microfauna (ostracods), and other paleoproductivity indicators. © 2023

关键词： Antarctic Bottom Water Antarctic Circumpolar Current Benthic foraminifera IODP Site U1541 Lower Circumpolar Deep Water Ostracoda Productivity Southern Ocean

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Local wisdom of Aek Latong society for mitigation and adaptation of soil movement disaster in North Sumatra, Indonesia 1

Local wisdom of Aek Latong society for mitigation and adapta...

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1st International Conference on environmental sciences, ICES 2018

作者： Haris, Zainal A. Irianto, Agus Heldi Hermon, Dedi Yulnafatmawita Department of Environmental Science Post Graduate Program Universitas Negeri Padang Prof. Dr. Hamka Street West Air Tawar Padang-West Sumatera25131 Indonesia Universitas Putra Indonesia Lubuk Begalung Padang Indonesia Geographical Department Universitas Negeri Padang Prof. Dr. Hamka Street West Air Tawar Padang-West Sumatera25131 Indonesia Soil Science Department Andalas University Limau Manis Padang Indonesia

Lately, due to advance technology, some of natural disasters could be forecasted, therefore the people can decide where to go to avoid the disasters. However, people in Aek Latong North Sumatra did different thing. They just stayed in their villages or regions without moving to anticipate the impact that might happen. This research was aimed to identify the local wisdom of Aek Latong society in facing, mitigating, and adapting the disaster, especially soil movement disaster in their region. This research was conducted through 3 steps (preparation, main survey, and data analyses). At the first step (preparation) was conducted to get secondary data about Aek Latong, such as geographical position, natural condition, type of natural disaster, society and the tradition. The second step (main survey) was conducted by directly interviewing the people in Aek Latong how they face, mitigate, and adapt the disaster happening. The third step was data analyses. Based on data resulted, Aek Latong society has a strong belief inherited from their ancients that everything come from the almighty God, therefore they have to face it. They believe that God has specific purposes to do so for them, they do not have to easily give up. Then, they also mitigate and adapt the disaster by earlier checking the signs of disaster and following the advice given, besides they did not construct building and do farming activities in sloping area and in the river bank. It could be concluded that Aek Latong society was able to face, mitigate, and adapt to the natural disaster in their region by their belief, knowledge, as well as by following the advice given. © 2019 Published under licence by IOP Publishing Ltd.

关键词： Disasters

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