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Ambient noise analysis for characterizing sub-surface dynamic parameters

IOP Conference Series: Materials Science and engineering 2020年第1期712卷

作者： B Setiawan T Saidi A Yuliannur U Polom P J Ramadhansyah M I Ali Program Studi Teknik Geologi Fakultas Teknik Universitas Syiah Kuala Indonesia Jurusan Teknik Sipil Fakultas Teknik Universitas Syiah Kuala Indonesia Leibniz Institute for Applied Geophysics Stilleweg 2 30655 Hannover Germany Faculty of Civil Engineering Technology Universiti Malaysia Pahang 26300 Kuantan Pahang Malaysia

Ambient noise analysis of horizontal to vertical spectral ratio (HVSR) method has been used widely to provide reliable estimates of the site fundamental frequency and to constrain the inversion of near-surface shear wave velocity. The present paper focuses on the site measurement using the aforementioned analysis by means of the HVSR method for characterizing sub-surface dynamic parameters in the City of Banda Aceh, Indonesia. A Guralp CMG-6TD broadband seismometer was used in this study to cover a wide frequency range from 0.033 Hz to 50 Hz in standard operation. The instrument was deployed at two different sites (i.e. Location#1 of Blang Padang and Location#2 of Stadion Dirmutala) in the City of Banda Aceh for at least 2 hours for ambient noise recording. This continuous of 2 hours' microtremor time series was separated into 30 minutes record from which the site fundamental frequency and shear wave velocity of the measured site were deduced. The later sub-surface dynamic parameter was validated using another technique of reflection seismic. This investigation suggests the fundamental frequency of 0.45 Hz at Location#1 and of 0.65 Hz at Location#2. The estimated shear wave velocity of the top 30 m, Vs,30 of this investigation is 165 m/s at Location#1 and 156 m/s at Location#2. Both the site fundamental frequency and shear wave velocity are important for infrastructure design in the high seismic region of Banda Aceh, Indonesia.

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Development of solid waste of tofu industry immobilized on silica surface as adsorbent for the adsorption of Cd (II) using method of continuous flow column

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IOP Conference Series: Earth and Environmental Science 2019年第1期259卷

作者： H Darmokoesoemo E P Kuncoro G Supriyanto W Manuhara A L Wijaya Department of Chemistry Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia Study Program of Environmental Engineering Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia Department of Biology Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia

The aim of this research is to determine the removal efficiency of Cd (II) based on the pH variation and the optimum pH on the batch method, the adsorbent height variation and flow rate in continuous flow column which using tofu solid waste industry which was immobilized silica as adsorbent, also to characterize and to identify functional groups of the absorbent using the FTIR analysis. The pH variation used was 2,3,4,5, and 6. Adsorbent height variation used was 2 cm and 4 cm. Then, variation of flow rate used was 5 ml/min and 10 ml/min. Determination of pH optimum was done using One-Way Anova analysis and continued with Duncan test and descriptive analysis based on the table and graphic. The analysis data of the removal efficiency of Cd (II) in continuous flow column was explained by the descriptive analysis. The pHPCZ was 8.4. The pH optimum was 6 with the removal efficiency 48.14%. The removal efficiency of Cd (II) in continuous flow column for the adsorbent height variation 2 cm and 4 cm which were 38,22% and 43,42% respectively. The removal efficiency of Cd (II) in continuous flow column for the flow rate 5ml/min and 10ml/min each by 38.22% and 39.01%. The result of FTIR analysis of the adsorbent conducted before the adsorption shown that there were functional groups of C=O (vibrate at 1651.07 cm-1), Si-O-Si (462.92 cm-1 and 1095.6 cm-1), O-H (3425.58 cm-1), and N-H (3749.62 cm-1). While, the result of the FTIR analysis after the adsorption shown that there were Si-O-Cd (956.72 cm-1) and Cd-N (412.78 cm-1).

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Removal of Ni (II) and Cu (II) ions from aqueous solution using rambutan fruit peels (Nephelium lappaceum L.) as adsorbent

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AIP Conference Proceedings 2018年第1期2026卷

作者： Rinaldi Rinaldi Yasdi Yasdi Winny Laura Christina Hutagalung Environmental Engineering Study Program Faculty of Engineering Universitas Jambi Indonesia

Rambutan fruit peels contain cellulose and hemicellulose compounds which are used in the heavy metal adsorption process. However, lignin compounds that bind cellulose and hemicellulose cause the active site to be covered. To make an adsorbent that has good performance, it is necessary to remove lignin from the material (delignification). This study aims to determine the activated adsorbent performance to remove Ni (II) and Cu (II) from the solution. The activation method using 0.1 M NaOH and 1% Formaldehyde mixture by soaking material for 2 hours at 80°C. The adsorption process was carried out a batch at 30°C by investigating the effect of initial pH, treatment time, and fitting model between Langmuir and Freundlich isotherm. Metal concentration in the solution was determined by Atomic Absorption Spectroscopy (AAS), identification of functional groups on the surface of the adsorbent by Fourier Transform Infra-Red (FTIR), and the adsorbent morphological structure was characterized by Scanning Electron Microscopy (SEM). The experimental results show that the lignin on the raw material has been lost which is indicated by the loss of peaks of 1716.81 and 1216.67 on the FTIR spectra. The surface morphology of the adsorbent becomes more porous on the results of SEM image. Freundlich isotherm models are more suitable for both Ni (II) and Cu (II) metals. Adsorption capacity from experimental was obtained 64.015 mg/g and 41.121 mg/g for Ni2+ and Cu2+, respectively.

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用于糖尿病培训的大型语言模型:一项前瞻性研究（英文）

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Science Bulletin 2025年第6期 934-942页

作者：李灏萱江泽铧管洲榆包玉倩刘月星胡婷婷李佳佳刘茹涵吴量程棣纪宏伟王勇王亚星 Carol Y.Cheung 郑颖丰王继红李震吴卫兵 Cynthia Ciwei Lim Yong Mong Bee Hong Chang Tan Elif I.Ekinci David C.Klonoff Justin B.Echouffo-Tcheugui Nestoras Mathioudakis Leonor Corsino Rafael Simó Charumathi Sabanayagam Gavin Siew Wei Tan 程景煜黄天荫李华婷蔡淳毛丽娟 Lee-Ling Lim 覃宇宗盛斌贾伟平 Shanghai University of Sport School of Clinical Medicine Beijing Tsinghua Changgung Hospital Tsinghua Medicine Tsinghua University Beijing Visual Science and Translational Eye Research Institute(BERI) Tsinghua Medicine Tsinghua University Shanghai Belt and Road International Joint Laboratory of Intelligent Prevention and Treatment for Metabolic Diseases Department of Computer Science and Engineering School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Department of Endocrinology and Metabolism Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai Diabetes Institute Shanghai Clinical Center for Diabetes MoE Key Lab of Artificial Intelligence Artificial Intelligence Institute Shanghai Jiao Tong University Department of Cardiology the Affiliated Hospital of Qingdao University CEMS NCMIS HCMS MADIS Academy of Mathematics and Systems Science Chinese Academy of Sciences School of Mathematics University of Chinese Academy of Sciences Chinese Academy of Sciences Key Laboratory of Systems Health Science of Zhejiang Province School of Life Science Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Beijing Institute of Ophthalmology Beijing Tongren Hospital Capital Medical University Beijing Ophthalmology and Visual Sciences Key Laboratory Department of Ophthalmology and Visual Sciences The Chinese University of Hong Kong State Key Laboratory of Ophthalmology Zhongshan Ophthalmic Center Sun Yat-sen University Guangdong Provincial Key Laboratory of Ophthalmology and Visual ScienceGuangdong Provincial Clinical Research Center for Ocular Diseases Department of Renal Medicine Singapore General Hospital Sing Health-Duke Academic Medical Centre Department of Endocrinology Singapore General Hospital Department of Endocrinology Austin Health Department of Medicine The University of Melbourne(Austin Health) Australian Centre for Accelerating Diabetes Innovations(ACADI) The Univ

Diabetes poses a considerable global health challenge, with varying levels of diabetes knowledge among healthcare professionals, highlighting the importance of diabetes training. Large Language Models(LLMs)provide new insights into diabetes training, but their performance in diabetes-related queries remains uncertain, especially outside the English language like Chinese. We first evaluated the performance of ten LLMs: Chat GPT-3.5, Chat GPT-4.0, Google Bard, Lla MA-7B, Lla MA2-7B, Baidu ERNIE Bot, Ali Tongyi Qianwen, Med GPT, Huatuo GPT, and Chinese Lla MA2-7B on diabetes-related queries, based on the Chinese National Certificate Examination for Primary Diabetes Care in China(NCE-CPDC) and the English Specialty Certificate Examination in Endocrinology and Diabetes of Membership of the Royal College of Physicians of the United Kingdom. Second, we assessed the training of primary care physicians(PCPs) without and with the assistance of Chat GPT-4.0 in the NCE-CPDC examination to ascertain the reliability of LLMs as medical assistants. We found that Chat GPT-4.0 outperformed other LLMs in the English examination, achieving a passing accuracy of 62.50%, which was significantly higher than that of Google Bard, Lla MA-7B, and Lla MA2-7B. For the NCE-CPFC examination, Chat GPT-4.0, Ali Tongyi Qianwen, Baidu ERNIE Bot, Google Bard, Med GPT, and Chat GPT-3.5 successfully passed, whereas Lla MA2-7B, Huatuo GPT,Chinese LLa MA2-7B, and Lla MA-7B failed. Chat GPT-4.0(84.82%) surpassed all PCPs and assisted most PCPs in the NCE-CPDC examination(improving by 1%–6.13%). In summary, LLMs demonstrated outstanding competence for diabetes-related questions in both the Chinese and English language, and hold great potential to assist future diabetes training for physicians globally.

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Pool Water Acidity Gauge Using Fuzzy Mamdani Method

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Journal of Physics: Conference Series 2019年第1期1361卷

作者： Abdul Jabbar Lubis Ummul Khair Arnes Sembiring Ade Zulkarnain Dodi Siregar Student Doctor of Philosophy Computer Engineering Universitiy Malaysia Perlis Study Program of Informatics Faculty of Engineering and Computer Science Universitas Harapan Medan Jl. H.M. Jhoni No. 70 C Medan 20217 Indonesia

Swimming pool is one of the means of sports and play that is fun. Swimming pools must also be considered clean. In order to be replaced with new water. The goal is so that pool users are not infected with infectious diseases due to the dirty water inside the pool. The Mamdani method is the most common method when discussing fuzzy methodology. It was Ebrahim Mamdani who first proposed this method in 1975 when building a steam engine and boiler control system. Mamdani uses a collection of IF-THEN rules obtained from experienced operators / experts. Mamdani's work is actually based on the article 'The Father of Fuzzy, Lotfi A. Zadeh: fuzzy algorithms for complex systems and decision processes.

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The development of market segmentation of sorghum products as functional beverages

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IOP Conference Series: Materials Science and engineering 2018年第1期434卷

作者： E Noerhartati T Widiartin M Maslihah N W Karyanto Agroindustrial Technology Study Program-Engineering Faculty Universitas Wijaya Kusuma Surabaya Indonesia Informatic Engineering Study Program-Engineering Faculty Universitas Wijaya Kusuma Surabaya Indonesia

Sorghum is one of the plants that can be processed into functional beverages containing elements of nutrients or non-nutrients that provide positive effects on health of the body. A descriptive qualitative research, this study aims to obtain product formulation and to initiate the process of market segmentation analysis. The study was conducted in two stages. The first stage was optimization using a Two-Factor Randomized Block Design, with three replications. The first design was performed by applying Flavour Addition (R): R1 used Ginger Flavour and R2 used Pandan Flavour. The second design was performed by applying Sweetener Addition (P): P1 used Cane Sugar and P2 used Brown Sugar. The aspects observed included physical, organoleptic, and chemical aspects. When analyzing the data, organoleptic test was performed by using Friedman test while chemical test was performed by using variance analysis, followed by using 5% Duncan test. The second stage was introducing sorghum-based functional beverages as new products to the public to initiate the process of market segmentation analysis, and the results showed that product formulation had been successfully obtained and sorghum-based functional beverages as new products were accepted by 78.6% of consumers, including the quality in terms of physical, organoleptic, and chemical aspects.

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The effect of mixing ratio variation of sludge and organic solid waste on biodrying process

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IOP Conference Series: Earth and Environmental Science 2018年第1期106卷

作者： A C Nasution G A Kristanto Civil Engineering Department Environmental Engineering Study Program Universitas Indonesia Depok Indonesia

In this study, organic waste was co-biodried with sludge cake to determine which mixing ratio gave the best result. The organic waste was consisted of dried leaves and green leaves, while the sludge cake was obtained from a waste water treatment plant in Bekasi. The experiment was performed on 3 lab-scale reactors with same specifications. After 21 days of experiment, it was found that the reactor with the lowest mixing fraction of sludge (5:1) has the best temperature profile and highest moisture content depletion compared with others. Initial moisture content and initial volatile solid content of this reactor's feedstock was 52.25% and 82.4% respectively. The airflow rate was 10 lpm. After biodrying was done, the final moisture content of the feedstock from Reactor C was 22.0% and the final volatile solid content was 75.9%.The final calorific value after biodrying process was 3179,28kcal/kg.

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Modelling and Control of a Virtual Skydiver

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IFAC-PapersOnLine 2017年第1期50卷 369-374页

作者： Clarke A. Gutman P.-O. Technion Autonomous Systems Program Technion - Israel Institute of Technology Haifa 32000 Israel Faculty of Civil and Environmental Engineering Technion – Israel Institute of Technology Haifa 32000 Israel

An innovative approach of gaining an insight into motor skills involved in human body flight is proposed. Body flight is the art of maneuvering during the free fall stage of skydiving, which is a rapidly developing sport. The key idea is creating an autonomous system capable of performing skydiving maneuvers in a virtual way, and turning it into a powerful tool for improving instruction methods. Towards this goal, the Skydiver Simulator is developed, comprising Biomechanical, Aerodynamic, and Kinematic Models, Dynamic Equations of Motion, and a Virtual Reality Environment. A Two-Input-Two-Output controller is designed to track the desired inertial motion, producing commands in terms of limbs movements. The natural kinematic redundancy of the human body is resolved by introducing movement patterns, constructed according to ergonomic considerations and empirical knowledge of how skydiving maneuvers are performed. The controller is designed with the use of Quantitative Feedback Theory, providing robustness for dealing with plant non-linearities and inaccurate execution of the movement patterns. The skydiver simulator allowed reconstruction of many challenging aspects of body-flight observed by practicing skydivers. The virtual skydiver, comprising a controller and a guidance algorithm, was shown to autonomously perform meaningful body flight missions. © 2017

关键词： autonomous systems dynamic modeling feedback control methods simulators

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Measurement of Usability for Multimedia Interactive Learning Based on Website in Mathematics for SMK

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IOP Conference Series: Materials Science and engineering 2018年第1期336卷

作者： Moch. Sukardjo Lipur Sugiyanta Study Program of Education for Electrical Engineering/Faculty of Engineering State University of Jakarta

Web usability, if evaluation done correctly, can significantly improve the quality of the website. Website containing multimedia for education shoud apply user interfaces that are both easy to learn and easy to use. Multimedia has big role in changing the mindset of a person in learning. Using multimedia, learners get easy to obtain information, adjust information and empower information. Therefore, multimedia is utilized by teachers in developing learning techniques to improve student learning outcomes. For students with self-directed learning, multimedia provides the ease and completeness of the courses in such a way that students can complete the learning independently both at school and at home without the guidance of teachers. The learning independence takes place in how students choose, absorb information, and follow the evaluation quickly and efficiently. The 2013 Curriculum 2013 for Vocational High School (SMK) requires teachers to create engaging teaching and learning activities that students enjoy in the classroom (also called invitation learning environment). The creation of learning activity environment is still problem for most teachers. Various researches reveal that teaching and learning activities will be more effective and easy when assisted by visual tools. Using multimedia, learning material can be presented more attractively that help students understand the material easily. The opposite is found in the learning activity environment who only rely on ordinary lectures. Usability is a quality level of multimedia with easy to learn, easy to use and encourages users to use it. The website Multimedia Interactive Learning for Mathematics SMK Class X is targeted object. Usability website in Multimedia Interactive Learning for Mathematics SMK Class X is important indicators to measure effectiveness, efficiency, and student satisfaction to access the functionality of website. This usability measurement should be done carefully before the design is impleme

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PID Control for a Manipulator Robot Using Internet Networking and Matlab-based

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Journal of Physics: Conference Series 2018年第1期1140卷

作者： M Khairudin Study Program of Electrical Engineering Faculty of Engineering Yogyakarta State University Indonesia

This paper presents the design to the implementation of the proportional, integral and derivative (PID) remote control system of robot manipulator using Matlab-based Internet network. These studies seek the solution of distance operations, time constraints, and monitoring the operation response of robot manipulator motion as robot that possible to carry dangerous objects which is should be monitored remotely during the operation. PID control system that is controlled remotely by the client and server systems. The monitoring process of robot manipulator is Matlab-based. Testing is done by doing observation to the speed response of the DC motor as the robot's axis driver on open loop system condition, and then doing observation using PID control system. The test of axis robot driver has also been carried out with a variety of no-load and load conditions. The test results showed the motor driver of robot will work optimally when using PID control system. The data acquisition and the stability of data communication between the client and server are affected by the condition of the existing data transfer on the network and also the distance from the server to the plant.

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