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Water Provision Benefits from Karst Ecosystems Threatened by Limestone Mining: An Example for Watuputih Groundwater Basin, North Kendeng Mountain, Indonesia

SSRN

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SSRN 2024年

作者： Sumarga, Elham Willemen, Louise Rosleine, Dian Fitria, Faradhitya Syahida Agatha, Karla Sinaga, Novayeni School of Life Sciences and Technology Institut Tekonologi Bandung Jalan Ganesa 10 Bandung40132 Indonesia University of Twente PO Box 217 Enschede7500 AE Netherlands Forestry Engineering Study Program School of Life Sciences and Technology Institut Teknologi Bandung Sumedang45363 Indonesia

Karst ecosystems hold immense value as providers of diverse ecosystem services. Protecting these ecosystems is a challenge, as they face significant threats from degradation and land-use conversion, including limestone mining. This study investigates the water provision service derived from karst ecosystems threatened by limestone mining in the Watuputih groundwater basin, Central Java, Indonesia. Water supply was quantified by measuring water discharge rates from major springs around the basin. Water usage was quantified for household consumption, agriculture, and recreation. This study also measured water infiltration rates in mining and non-mining areas to indicate the effects of limestone mining to hydrological processes. This study identified three principal springs around the Watuputih groundwater basin: Sumber Seribu spring, Brubulan spring, and Kalutan spring, with discharge rates of 1,080 liters per second, 85 liters per second, and 0.76 liters per second, respectively. A local water company extracts water from Sumber Seribu spring at a rate of 80 liters per second, catering to the water demands of approximately 57,600 individuals. The combined water supply from the three springs can irrigate approximately 1,594 hectares of rice fields. Water from Sumber Seribu spring also supports recreational activities in Sumber Semen recreation park, attracting an average of 19,173 visitors per year. This study revealed a complete impairment of soil's water infiltration capacity in limestone mining areas. These findings underscore the pressing need to safeguard the Watuputih groundwater basin and to mitigate the detrimental effects of limestone mining on hydrological processes. © 2024, The Authors. All rights reserved.

关键词： Limestone

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Evaluating AI-Induced Anxiety and Technical Blindness in Healthcare Professionals

Evaluating AI-Induced Anxiety and Technical Blindness in Hea...

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Creative Communication and Innovative Technology (ICCIT), IEEE

作者： Michael Christian Ratlan Pardede Kurnadi Gularso Suryo Wibowo Oktafalia Marisa Muzammil Sunarno Dept. of Management University of Bunda Mulia Jakarta Indonesia Master of Management University of Bunda Mulia Jakarta Indonesia Dept. of Medical Profession Study Program Krida Wacana Christian University Jakarta Indonesia Dept. of Business Management School Dept. of Business Undergraduate Program Bina Nusantara University Bekasi Indonesia Dept. of Mechanical Engineering University of Tama Jagakarsa Jakarta Indonesia

ISBN: (数字)9798350367492

ISBN: (纸本)9798350367508

The widespread implementation of artificial intelligence (AI) in various industries, including healthcare, provides significant benefits but raises concerns. Notably, apprehensions about AI generating issues, experiencing malfunctions, and hindering work extend to fears of replacing medical professional positions. This research aims to quantitatively assess the impact of anxiety forms, specifically social, technical blindness and AI configuration, on job replacement anxiety among medical doctors. A pre-test approach was employed to gather data from 38 doctors in Jakarta who regularly interact with AI in their daily work. The study used PLS-SEM structural modelling with SmartPLS 3.0 as the analysis tool. Findings indicate that both social and technical blindness and AI configuration significantly influence job replacement anxiety. Additionally, the study reveals that elements within the AI configuration interact with social-technical blindness, and the AI setup effectively mitigates its impact on job replacement anxiety. These anxieties notably affect medical professionals’ fears of being replaced in their current roles. Previous research shows that anxiety about AI among healthcare personnel is persistent. However, this worry can be reduced or eliminated through continuous awareness, education, and understanding of AI’s purpose and limitations. This study aims to provide medical practitioners with a comprehensive understanding of AI constraints and the aspects requiring direct doctor involvement.

关键词： Training Industries Ethics Anxiety disorders Psychology Medical services Blindness Personnel Artificial intelligence Guidelines

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Comparison of BER Performance for M-ary QAM and PSK on DWT-based OFDM System with PTS Technique Through AWGN Channel

Comparison of BER Performance for M-ary QAM and PSK on DWT-b...

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International Conference on Sustainable engineering and Creative Computing (ICSECC)

作者： Antonius Suhartomo Vincent Vincent Study Program of Electrical Engineering President University Bekasi Indonesia

ISBN: (纸本)9781728175898

Modulation technique, such as QAM and PSK may provide wireless communication with bandwidth efficiency. They each have their advantages, especially when it comes to BER performance over a wireless channel. They increase the performance of the bandwidth when used along with the OFDM. The FFT usually used in the OFDM system; however, it significantly increased the PAPR. DWT-based OFDM system can be implemented to solve this, and PTS technique can further improve it. This paper aims to do a simulation comparing QAM and PSK's BER performance. Both modulation technique will have the order of 4, 8, 16, 64, and ***, the bit order will be Gray-mapped. The signal is implemented in DWT-based OFDM system with PTS technique through AWGN channel. The result shows that the performance of 4-QAM is similar to QPSK. Then, 8-QAM is slightly better than 8-PSK, and as the order gets higher, the QAM shows a much better performance than PSK. The constellation diagram of QAM shows that the distance between each combination is constant for any order. PSK has a smaller distance; thus, it is very rational for QAM to perform better than PSK for the higher-order as 16-QAM, 64-QAM, and 256-QAM.

关键词： AWGN channels Wireless communication Phase shift keying Constellation diagram Quadrature amplitude modulation Spectral efficiency OFDM

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study of the effect of the bark on the compression strength of galam wood (Melaleuca Cajaputi)

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AIP Conference Proceedings 2024年第1期2927卷

作者： Muhammad Noor Asnan V. Vebrian Faculty of Science and Technology Civil Engineering Study Program Universitas Muhammadiyah Kalimantan Timur Indonesia

Melaleuca Cajaputi (Kayu Galam) is a type of tree that grows very fertile in swampy areas. This wood is commonly used in natural conditions (barked) in construction work. Meanwhile, other woods are generally used in a processed condition (without bark). For this reason, this paper compared galam wood with bark and without bark. This research was conducted by testing the physical characteristics and compressive strength in the laboratory. The compressive strength samples consisted of natural conditions (irregular round shape) with variations in length of 10 cm, 15 cm and 30 cm. Furthermore, each variation is made into a barked and peeled bark. All samples amounted to 126 units. The results of specific gravity and water content were not significantly different between barked and without bark. The water absorption in the shelled galam was 49.25% greater than that without the bark. Furthermore, the effect of the galam bark layer reduces the average strength by 24.92% and undergoes compression and shear failure. The failure of the test object with a ratio of length to diameter greater than 5 is indicated to have a buckling effect.

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One dimensional numerical modeling of point source pollutant distribution in estuarine river basin 7

One dimensional numerical modeling of point source pollutant...

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7th International Conference on Asian and Pacific Coasts, APAC 2013

作者： Achiari, H. Friyadi, D. Pramono, A.W. Paramanandana, B. Ocean Engineering Study Program Institut Teknologi Bandung Jl. Ganesa No. 10 Bandung40132 Indonesia

ISBN: (纸本)9789795301257

Pollutant is product that produced from every activities, both natural and human-made. In many case, mostly, pollutant brings a negative effect to the environment. It comes to the environment in many ways. This paper would be modelled a point source pollution in river in one dimensional numerical modelling to orient hydrological model by using explicit and implicit scheme. In the end, the concentration and spreadness in the river would be known. It would be modelled in three case condition which is has the same initial and boundary condition. Those cases give a different value of velocity of river and reaction term per day. The point source pollution located one of third of the river length. From the general form of the convective diffusion, this numerical modelling neglected the area because it assumed that the area is *** determine the constant of α, β, γ variables can be simplified in to the matrixsimultaneous equations. The output gives the graph time and concentration. This paper brings the similar result between hypothesis and the numerical modelling. © APAC *** rights reserved.

关键词： Rivers

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Analysis of the effect of intellectual intelligence, emotional intelligence, spiritual intelligence and organizational commitment on employee performance with structural equation modeling method

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AIP Conference Proceedings 2023年第1期2734卷

作者： Osep Hijuzaman Muhammad Ali Akbar Robi Herdiyanto Industrial Engineering Study Program STT Wastukancana Purwakarta Purwakarta Indonesia

This study purpose to determine the effect of intellectual intelligence, emotional intelligence, spiritual intelligence and organizational commitment on the performance of production employees. The sampling method used was simple random sampling and the determination of the number of samples in this study using the Slovin formula resulted in 160 respondents, the data used were primary data with a questionnaire technique, hypothesis testing was carried out with multiple linear regression analysis techniques using a two-tailed test. with Amos 24. The results showed that intellectual intelligence, emotional intelligence and spiritual intelligence had a significant positive effect on employee, while the organizational commitment variable did not significantly affect employee performance. This is because Intellectual Intelligence, Emotional Intelligence, and Spiritual Intelligence provide support for someone to work better so that their performance increases. The implication of this research is that companies need to make clear work plans and benchmarks at the beginning of the year, so that the targets to be achieved by employees in the company are clear.

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Utilisation Median Filter as Pre-Processing for Depth Map Compression

Utilisation Median Filter as Pre-Processing for Depth Map Co...

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Mechanical, Electronics, Computer, and Industrial Technology (MECnIT), International Conference on

作者： Christin Erniati Panjaitan Electrical Engineering Study Program Universitas Prima Indonesia Indonesia

ISBN: (数字)9781728174037

ISBN: (纸本)9781728174044

Video compression is commonly studied, and several standards have been established from multimedia companies. The 3D video signal contains of the conventional 2D video signal and depth video. In order to equip 3D video, depth video compression has been explored to unveil geometric information for synthesis virtual views. Conventional video compression is not allowed directly employed into genuine depth video because its characteristics which may influence in compression ratio and synthesis representation. Depth information is able to be implemented for several images processing implementations such as identification, segmentation and so on. Unfortunately, the problem happens in original depth video begins from acquisition process of depth video. This depth video is needed to be compressed for efficient network transmission, storage and power. In this working, will be shown utilizing median filter as pre-processing method dues to its unstable pixel values. Then, the output of pre-processing was submitted into H.264/AVC encoding tool. From experimental results, utilizing median filter as a preprocessing approached the quality of video compression up to 20 % compared to the output depth video without using median filter at all.

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Prototype of Postpaid Electricity and Water Usage Monitoring System

Prototype of Postpaid Electricity and Water Usage Monitoring...

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2019 International Conference on Sustainable engineering and Creative Computing, ICSECC 2019

作者： Galina, Mia Ramadhani, Muhammad Wahyu Simatupang, Joni Welman President University Electrical Engineering Study Program Cikarang Indonesia

ISBN: (纸本)9781728151922

This paper presents a prototype design and implementation of home users' postpaid electricity and water usage monitoring system. The system design is consisted of four main components such as Arduino UNO microcontroller and Bluetooth module, current and water flow sensors, RGB LED, and alarm buzzer. Current and water flow sensors will measure the current and water flow driven in installation. Measurement data will be sent to Arduino UNO as microcontroller. Arduino microcontroller will be reading and processing the data. If the current and water usage exceeds the predetermined limits, then microcontroller through Bluetooth module will trigger the RGB LED to light up and then buzzer will sound as a warning to notify users. Three different situations have been applied to test the device performance. The first two is for each electricity and water usage limits. And the third is when both utilities are combined simultaneously. Testing results show that for the first two, acceptable limits of electricity and water usage are at highest points (900 W and 3 L). But, for the third is varied according to the combination between electricity and water usage limits. These results showed that the prototype can be used as an energy monitoring system to warn and notify home users from monthly overdue consumption fees of postpaid electricity and water usage. But, this prototype still needs much improvements to be ready applied as a commercial device. © 2019 IEEE.

关键词： Microcontrollers

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Development of coronary heart disease diagnosis system based on facial imagery

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AIP Conference Proceedings 2024年第1期2920卷

作者： Yudha Andriano Rismawan Agung Adi Firdaus Indah Novi Yarman Anisa Dwi Lutfi Yanti Anan Nugroho Rachelia Intan Merdina Andreas Arie Setiawan Informatics and Computer Engineering Education Study Program Universitas Negeri Semarang Semarang Indonesia Public Health Study Program Universitas Negeri Semarang Semarang Indonesia Faculty of Medicine Diponegoro University Semarang Indonesia

The effort of the community in early checkups for coronary heart disease is still very lacking. That is due to the less awareness and cost constraints so that heart disease is handled too late which causes the heart condition to get worse and even complications. A diagnosis of coronary heart risk based on facial texture has been done lately by researchers in China and produces pretty good output, but no similar study has been found in Indonesia. Therefore, this study aims to design several machine learning models and find out the performance of algorithms in diagnosing the risk of coronary heart disease with facial imagery. The research dataset was extracted using the Gray Level Co-occurrence Matrix on specific areas of the face. The areas taken are right crow’s feet, right canthus, bridge nose, forehead, left canthus and left crow’s feet. The main focus of this study was on the performance of the Support Vector Machine, Decision Tree, and Neural Network models. Dataset processing procedures are divided into two, namely model making (training) and performance testing (testing). The findings showed that the best performing model was NN with an AUC score of 92.8%, followed by SVM with 85.6%, and the lowest was DT with 68% AUC. NN became the model with the best performance with 76.9% accuracy, 81.7% precision, 76.9% recall, and an F1 score of 77.5%.

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Evaluation of BER Performance for M-Ary QAM OFDM Through Wireless Channel by Controlling PAPR at the Transmitter

Evaluation of BER Performance for M-Ary QAM OFDM Through Wir...

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International Conference on Information Technology and electrical engineering (ICITEE)

作者： Vincent Antonius Suhartomo Study Program of Electrical Engineering President University Bekasi Indonesia

ISBN: (数字)9781728110974

ISBN: (纸本)9781728110981

The implementation of FFT in OFDM system may provide many advantages, such as the bandwidth becomes more efficient and the signal performance over fading channel is better than single carrier signal. However, the PAPR of the signal is high and it can reach 10 dB, which is equivalent to a peak power that is 10 times higher than the average power. This way, the usage of FFT-based OFDM is not very efficient, especially in terms of power consumption at the transmitter. In this paper, a simulation was done to evaluate the BER performance of the signal with the implementation of several PAPR reduction techniques, such as the wavelet transform, Partial Transmit Sequence (PTS) technique, and also the clipping technique. The implementation was done with the 16 QAM and 64 QAM, and also the signal was sent through Rayleigh fading channel. The result shows that for 16 QAM, the best result is achieved by using db1 with PTS technique. With Eb/No value of 20 dB, the BER can be 10 -3 , which is 7 dB better than the normal FFT-based OFDM system. As for 64 QAM, the best result is achieved by the usage of normal db3 without PTS nor clipping technique. With Eb/No value of 24 dB, the BER can be 10 -3 , which is 4.5 dB better than FFT-based OFDM system.

关键词： Fading channels Wireless communication Power demand Quadrature amplitude modulation Transmitters Partial transmit sequences Peak to average power ratio

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