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Water quality of the Garang River, Semarang, Central Java, Indonesia based on the government regulation standard

Journal of Physics: Conference Series 2018年第1期1025卷

作者： R M D Ujianti S Anggoro A N Bambang F Purwanti Doctoral Program of Coastal Resources Management Diponegoro University Faculty of Engineering and Informatics PGRI University Semarang Jl. Sidodadi Timur 24. Dr. Cipto Semarang Indonesia Faculty of Fisheries and Marine Science Diponegoro University Jl. Prof. Soedharto SH Tembalang Semarang Indonesia 50275

The Garang watershed composed by three main river streams has been managed by the Regional water company of the Semarang city, Central Java for drinking water supply. A river is often polluted by domestic waste and industrial effluents. Therefore water quality of the river should be keep to meet the Government regulation standard. The study aims to analyze water quality of the Garang' river using pollution index based on the government regulation. Series data from 2010 to 2016 were derived from the Environmental and Forestry Office of the Central Java Province and sampling of water quality was taken in August 2017 from the middle of watershed area. Water quality parameters include temperature, pH, TDS, DO, COD, Phosphate, Nitrate, Chromium, Copper, Cadmium and H2S. The research indicates that concentration of Copper has exceeds the standard of the Government Regulation No. 82 Year 2001. The water pollution index is 1.23, its means that the river is lightly polluted. Therefore the river should be managed comprehensively for sustainable uses in order to create one river one management concept.

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Macular pigments produced from microalga Chlorella sp. and applied to alleviate the pathogenic process in diabetic mice

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Algal Research 2024年 78卷

作者： Meng-Wei Lin Wei-Hong Chiu Cheng-Han Lin Dung-Huan Liu Pei-Ching Wu Chih-Sheng Lin Department of Biological Science and Technology National Yang Ming Chiao Tung University Hsinchu 30068 Taiwan Doctoral Degree Program of Biomedical Science and Engineering College of Biological Science and Technology National Yang Ming Chiao Tung University Hsinchu 30068 Taiwan Department of Physical Medicine and Rehabilitation China Medical University Hospital Taichung 404 Taiwan Department of Chinese Medicine China Medical University Hospital Taichung 404 Taiwan

Macular pigments (MP), which consist of lutein and zeaxanthin, have antioxidant capabilities and are widely used in eye healthcare. However, few studies have focused on the protective mechanisms of MP against diabetes mellitus. In addition, the advantages of MP produced by microalgae include non-competition with grains for land, year-round harvesting, and rapid growth. Therefore, this study aims to investigate the MP produced and extracted from the microalga Chlorella sp. AT1 and assess its impact on mitigating retinopathy and atherosclerotic damage in diabetic apolipoprotein E -deficient mice (ApoE −/− ) subjected to high-fat diet and streptozotocin treatment. The results showed that the major components of MP were lutein and zeaxanthin in a 5:1 ratio. MP supplementation significantly reduced glucose tolerance and insulin resistance by 25 and 41 %, respectively, in comparison to the diabetic group. MP supplementation resulted in the moderation of various inflammatory cytokines and lowered the serum levels of disease markers in comparison to the control group. In addition, the expression levels of cellular antioxidant enzymes were significantly elevated, aligning with a reduction in lipid peroxidation after MP supplementation, in comparison to the diabetic group. Pathological changes in the outer nuclear layer and aortic plaques in diabetic ApoE −/− mice were significantly alleviated by MP supplementation. In summary, microalgal MP alleviated the symptoms of type 2 diabetes mellitus in the diabetic ApoE −/− mice. Consequently, MP holds the potential to serve as a beneficial ingredient in healthy food, contributing to biological efficacy by scavenging free radicals and stabilizing blood glucose levels.

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The effect of muffler mounting to the engine noise of LAPAN surveillance UAV - 02 (LSU-02)

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AIP Conference Proceedings 2023年第1期2941卷

作者： Agus Bayu Utama Aries Asrianto Ramadian Siswo Hadi Sumantri Romie Oktovianus Bura Gita Amperiawan Research Center of Aeronautics Technology National Research and Innovation Agency (BRIN) Jakarta Indonesia Doctoral Program of Defence Science Republic of Indonesia Defense University Jakarta Indonesia Faculty of Defence Technology Republic of Indonesia Defense University Jakarta Indonesia Faculty of Mechanical and Aerospace Engineering Bandung Institute of Technology (ITB) Bandung Indonesia

The effect of muffler mounting on LAPAN Surveillance UAV-02 (LSU-02) engine noise has been investigated. In the propulsion laboratory, the LSU-02 engine was tested by varying the throttle setting so that the propeller rotated with RPM variation. The noise level was measured by using noise sensor, located 1 meter behind the engine and 1 meter front the engine. The same test was repeated, but this time the engine had a muffler. The maximum noise level for the LSU-02 engine was 113.9 dB without a muffler and 98.7 dB with a muffler, with noise sensor located 1 meter behind the engine, at the highest propeller rotational speed of 6500 RPM, according to the measurement results. The engine noise level was reduced by an average of 15% and 12% with noise sensors mounted behind and in front of the engine. With current muffler design and operation by propeller speed of 5000 RPM, the measured noise level could not be suppressed to under 85 dB.

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Front Cover: Fabrication of transparent conducting polymer/GaN Schottky junction for deep level defect evaluation under light irradiation (Phys. Status Solidi A 3/20123)

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physica status solidi (a) 2013年第3期210卷

作者： Mickaël Lozac'h Yoshitaka Nakano Liwen Sang Kazuaki Sakoda Masatomo Sumiya Photonic Material Unit National Institute for Materials Science Tsukuba 305-0044 Japan Doctoral Program in Materials Science and Engineering Tsukuba University Tsukuba 305-8573 Japan Institute of Science and Technology Research Chubu University Kasugai Aichi 487-8501 Japan ICYS-MANA National Institute for Materials Science Tsukuba 305-0044 Japan Wide Bandgap Materials Group National Institute for Materials Science Tsukuba 305-0044 Japan JST-ALCA Japan Science and Technology Agency Tokyo 102-0076 Japan

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Quantum annealing for vehicle routing problem with weighted segment

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AIP Conference Proceedings 2023年第1期2906卷

作者： Toufan Diansyah Tambunan Andriyan Bayu Suksmono Ian Joseph Matheus Edward Rahmat Mulyawan Doctoral Program of Electrical Engineering and Informatics School of Electrical Engineering and Informatics Institut Teknologi Bandung. Jl. Ganesha 10 Bandung 40132 Jawa Barat Indonesia School of Applied Science Telkom University. Jl. Telekomunikasi no.1 Bandung Jawa Barat Indonesia School of Electrical Engineering and Informatics Institut Teknologi Bandung Jl. Ganesha 10 Bandung 40132 Jawa Barat Indonesia

Quantum annealing technologies aim to solve combinatorial optimization and sampling problems. Studies on combi-natorial optimization problems include the selection of vehicle routes on road traffic, known as the NP-hard problem. We propose a vehicle route problem that can be formulated in the Quadratic Unconstrained Binary Optimization (QUBO) model as a combina-torial problem to optimize vehicle route selection. The solution aims to optimize the vehicle’s journey to reach a destination. The experiment presents a formulation to solve traffic congestion problems on certain roads. The selection of vehicle routes results in optimizing the distribution of alternative road vehicle flows. The level of road density is a cost function that will be optimized, and the constraint is a limitation on the route choice for each vehicle. This vehicle routing problem considers the weight parameter (as distance in actual road conditions) of the road segment that affects the cost function. The simulations on the D-Wave quantum annealer show optimal results on the route deployment of several vehicles. The cost value on route choice with weighted segments gives better results than in previous studies. Each vehicle can go through different road options and accurately reduce road conges-tion. This solution provides an opportunity to develop QUBO modeling on more complex vehicle routing problems to reduce road congestion.

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Treatment Algorithm for the Resorption of Calcific Tendinitis Using Extracorporeal Shockwave Therapy: A Data Mining Study

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Orthopaedic Journal of Sports Medicine 2024年第3期12卷 23259671241231609页

作者： Chou, Wen-Yi Cheng, Jai-Hong Lien, Yu-Jui Huang, Tian-Hsiang Ho, Wen-Hsien Chou, Paul Pei-Hsi Doctoral Degree Program in Biomedical Engineering College of Medicine Kaohsiung Medical University Kaohsiung Taiwan Department of Orthopedic Surgery Kaohsiung Chang Gung Memorial Hospital Chang Gung University College of Medicine Kaohsiung Taiwan Department of Leisure and Sport Management Cheng Shiu University Kaohsiung Taiwan Center for Shockwave Medicine and Tissue Engineering Department of Medical Research Kaohsiung Chang Gung Memorial Hospital Chang Gung University College of Medicine Kaohsiung Taiwan Department of Healthcare Administration and Medical Informatics Kaohsiung Medical University Kaohsiung Taiwan Department of Computer Science and Information Engineering National Penghu University of Science and Technology Penghu Taiwan College of Professional Studies National Pingtung University of Science and Technology Pingtung Taiwan Department of Sports Medicine College of Medicine Kaohsiung Medical University Kaohsiung Taiwan Division of Sports Medicine Department of Orthopaedic Surgery Kaohsiung Medical University Hospital Kaohsiung Taiwan Department of Orthopaedics School of Medicine College of Medicine Kaohsiung Medical University Kaohsiung Taiwan Department of Orthopaedic Surgery Kaohsiung Municipal Hsiao-Kang Hospital Kaohsiung Taiwan

Background: Although evidence indicates that extracorporeal shockwave therapy (ESWT) is effective in treating calcifying shoulder tendinitis, incomplete resorption and dissatisfactory results are still reported in many cases. Data mining techniques have been applied in health care in the past decade to predict outcomes of disease and treatment. Purpose: To identify the ideal data mining technique for the prediction of ESWT-induced shoulder calcification resorption and the most accurate algorithm for use in the clinical setting. Study Design: Case-control study. Methods: Patients with painful calcified shoulder tendinitis treated by ESWT were enrolled. Seven clinical factors related to shoulder calcification were adopted as the input attributes: sex, age, side affected, symptom duration, pretreatment Constant-Murley score, and calcification size and type. The 5 data mining techniques assessed were multilayer perceptron (neural network), naïve Bayes, sequential minimal optimization, logistic regression, and the J48 decision tree classifier. Results: A total of 248 patients with calcified shoulder tendinitis were enrolled in this study. Shorter symptom duration yielded the highest gain ratio (0.374), followed by smaller calcification size (0.336) and calcification type (0.253). With the J48 decision tree method, the accuracy of 3 input attributes was 89.5% by 10-fold cross-validation, indicating satisfactory accuracy. A treatment algorithm using the J48 decision tree indicated that a symptom duration of ≤10 months was the most positive indicator of calcification resorption, followed by a calcification size of ≤10.82 mm. Conclusion: The J48 decision tree method demonstrated the highest precision and accuracy in the prediction of shoulder calcification resorption by ESWT. A symptom duration of ≤10 months or calcification size of ≤10.82 mm represented the clinical scenarios most likely to show resorption after ESWT. © The Author(s) 2024.

关键词： calcific tendinitis data mining extracorporeal shockwave therapy J48 decision tree shoulder

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Using traffic signs in children's shoes and metalworking design

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Journal of Physics: Conference Series 2020年第1期1456卷

作者： L H Peng R R Yu Indarti Department of Creative Design National Yunlin University of Science and Technology. University Road Section 3 Douliou Yunlin 64002. Taiwan Department of Home Economic Faculty of Engineering Universitas Negeri Yogyakarta. (Indonesia) & Doctoral Program Graduate School of Design National Yunlin University of Science and Technology. University Road Section 3 Douliou Yunlin 64002. Taiwan

According to research, the current situation of declining of children's birth rate is becoming a serious social issue in Taiwan. Therefore, most parents are willing to give their children the best care, and the trend of children's goods is refined and more creative. It can be seen that modern people are not afraid of expensive but pay more attention to quality and creativity. This study takes the common traffic signs as design target. Modern children's living environment is becoming more scientific and less exposed to outdoor activities. The preschool children's vision is not broad enough to judge the meaning of the traffic sign. Therefore, in the news reports, people often see cases of children misunderstanding the road, leading to tragedy. Parents play an important role in the child's growth and must teach children to identify relevant signs at the right *** study hopes to teach children the correct concept of transportation through relevant designs. Although the elements of traffic signs are very simple, the more complex the environment, the more streamlined it is to achieve simplicity and order. The ultimate goal of this study is to make children curious about the goods and teach the correct concept of transportation.

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EPAS APPROACH TO VADOSE ZONE MONITORING AT RCRA FACILITIES

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GROUND WATER MONITORING AND REMEDIATION 1993年第1期13卷 151-158页

作者： DURANT, ND MYERS, VB ECCLES, LA Washington D.C. 20460) has worked as an environmental scientist in the RCRA corrective action program at EPA since 1989. After graduating from Colgate University in 1987 Durant worked for GeoTrans Inc. conducting hydrogeologic investigations at numerous waste disposal sites throughout the northeastern United States. At present Durant is pursuing an M.S. degree in environmental science from The Johns Hopkins University. His research is focused on enhancing in situ biodegradation of aromatic organic compounds in the subsurface. Washington D. C. 20460) graduated from The Johns Hopkins University in 1972 with a B.A. degree in natural sciences. Myers received a Ph.D. in oceanography from Florida State University in 1977. During 1978 he held a post doctoral fellowship at University of Florida in the Department of Environmental Engineering and Science. From 1979 to 1983 Myers was employed by the Florida Department of Environmental Regulation where he worked on environmental restoration projects. Since 1984 Myers has worked at EPA managing RCRA ground water monitoring and corrective action programs. Lawrence A. Eccles (U.S. Environmental Protection Agency Environmental Monitoring Systems Laboratory P.O. Box 93478 Las Vegas NV 89193–3478) is a hydrologist with the EPA Environmental Monitoring Systems Research Laboratory in Las Vegas Nevada. Eccles is responsible for the development of vadose zone and in situ monitoring techniques and guidelines. After graduating from Monmouth College with a B.S. degree in chemistry Eccles performed graduate work in chemical engineering at New Mexico State University. He received formal training in hydrology in 1969 from the U.S. Geological Survey in Denver and worked with that agency before joining EPA at Las Vegas in 1984. One of his co-authored articles was chosen for the Best Paper Award by the journal Ground Water in 1975 and another was the subject of a cover story for Water Well Journal in 1977.

The U.S. Environmental Protection Agency (EPA) recently proposed to amend federal regulations to require vadose zone monitoring at certain hazardous waste facilities. To support this proposal, EPA evaluated previous policy on vadose zone monitoring and examined advances in vadose zone monitoring technology. Changes in EPA vadose zone monitoring policy were driven by demonstrated advances in the available monitoring technology and improvements in understanding of vadose zone processes. When used under the appropriate conditions, currently available direct and indirect monitoring methods can effectively detect contamination that may leak from hazardous waste facilities into the vadose zone. Direct techniques examined include soil-core monitoring and soil-pore liquid monitoring. Indirect techniques examined include soil-gas monitoring, neutron moderation, complex resistivity, ground-penetrating radar, and electrical resistivity. Properly designed vadose zone monitoring networks can act as a complement to saturated zone monitoring networks at numerous hazardous waste facilities. At certain facilities, particularly those in arid climates where the saturated zone is relatively deep, effective vadose zone monitoring may allow a reduction in the scope of saturated zone monitoring programs.

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Implementation of Various Artificial Intelligence Approach for Prediction and Recommendation of Personality Disorder Patient

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Journal of Physics: Conference Series 2021年第1期1751卷

作者： H Sulistiani K Muludi A Syarif Doctoral Program of Mathematics and Natural Sciences Faculty University of Lampung Jl. Sumantri Brojonegoro No. 1 Bandar Lampung Indonesia. Faculty of Engineering and Computer Science Universitas Teknokrat Indonesia Jl. ZA. Pagaralam No. 9-11 Bandar Lampung Indonesia. Department of Computer Science Faculty of Mathematics and Science University of Lampung Jl. Sumantri Brojonegoro No. 1 Bandar Lampung Indonesia.

Personality disorder is known as chronic psychological disorders. It is a serious problem of the individual character and behavior that affect work, family and social life of a person. In many cases, the possibility of people do not realize that they have a personality disorder as a way of thinking and behaving seems natural to the patient, and the patient may blame others. To diagnose a personality disorder early, it is necessary to develop a system that is able to predict personality disorders and recommendation type of therapy patients should undergo. Artificial Intelligence is a technique that is very popular today. Various kinds of approaches and algorithms can be applied in the world of health, such as expert systems, neural networks and fuzzy logic. The aim of this study is to assess the artificial intelligence approach in predicting and recommending the type of therapy for patients with personality disorders.

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Fabrication of silica-nypa membrane applied for water desalination

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AIP Conference Proceedings 2024年第1期2710卷

作者： Muthia Elma Isna Syauqiah Era N. R. Oktaviana Siti Fatimah Aulia Rahma Awali Sir Kautsar Harivram Erdina L. A Rampun Chemical Engineering Department Engineering Faculty Lambung Mangkurat University JL. A. Yani KM 36 Banjarbaru South Kalimantan 70714 Indonesia Materials and Membranes Research Group (M2ReG) Lambung Mangkurat University JL. A.Yani KM 36 Banjarbaru South Kalimantan 70714 Indonesia Doctoral Program of Environmental Science postgraduate Program Lambung Mangkurat University Jl. Brigjen H Hasan Basri Kayutangi Banjarmasin South Kalimantan 70123 Indonesia

Carbon source as a template derived from nypa leaf powder enable to strengthen the silica matrix applied for water desalination. This research aims to synthesize silica-nypa membrane, characterize xerogel silica-nypa leaf and investigate the performance of silica-nypa membrane with various concentration of nypa as a carbon template to treat artificial sea water. The concentrations of nypa leaf as a carbon template are 0.1; 0.5 and 2.5 %wt with a calcination temperature of 350 °C through a rapid thermal processing (RTP) technique. Xerogel characterization using FTIR was employed to analyze a spectrum and Scanning Electron Microscopy (SEM) to investigate the membrane morphology. The result shows that the performance of silica-nypa membrane with water fluxes of 2.1915; 2.0163 and 1.1067 kg.m−2. h−1 (for 0.1; 0.5 and 2.5 %wt. carbon template derived from nypa leaf), and the salt rejection value for all concentrations.

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