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Design implementation of smart fish pond monitoring system using IoT

AIP Conference Proceedings 2023年第1期2523卷

作者： S. V. Tresa Sangeetha P. G. Kuppusamy V. Chandrasekaran A. Sangeerani Devi 1Department of Engineering University of Technology and Applied Science-Al Mudabah Muladdah South Batinah Sultanate of Oman. 2Department of Electronics and Communication Engineering Siddharth Institute of Engineering and Technology Puttur Andhra Pradesh India 3Department of Medical Electronics Velalar College of Engineering and Technology Thindal Tamil Nadu India 4Department of Computer Science and Engineering Sri Sairam Engineering College Chennai Tamil Nadu India

The present approach aims to provide safe and safe production of high-quality seafood by keeping regular levels of water in the fish tank by helping fish pool owners. The flow of high or low water into the fish pond solves the problem of killing fish in a fish tank for the long term. Every grade of water can impact animal health alone. The water flow in fish ponds describes how to check it every day. We need to check the parameters of the water on a regular basis. It symbolizes high water quality standards and bad water quality ponds and how they need to be improved. It is advised that the precondition for increasing output should be given priority to guarantee sustained fresh quality. Water quality parameters therefore maintain a balance; culture is the cornerstone for living creatures' health and growth. The water quality metrics should be monitored and evaluated regularly.

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Frequency reconfigurable monopole antenna

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AIP Conference Proceedings 2022年第1期2519卷

作者： K. Periyarselvam N. C Sendhilkumar C. Malarvizhi R. Ganesan 1Department of Electronics and Communication Engineering GRT Institute of Engineering and Technology Tiruvallur Tamil Nadu India 2Department of Electronics and Communication Engineering Sri Indu College of Engineering & Technology Sheriguda Telangana India 3Department of Electronics and Communication Engineering Rajalakshmi Institute of Technology Chennai Tamil Nadu India 4Department of Computer Science and Engineering SRM Institute of Science and Technology Kattankulathur Chennai Tamil Nadu India

The proposal is for a compact and novel shaped frequency-reconfigurable Monopole antenna with a large tuning band. Depending on the switching states, the recommended antenna works in single band modes. In the modelling context, lumped components are utilised to offer variable capacitance, which is responsible for frequency settings. The built antenna’s tuning capacity has been discovered to be between 2.1 and 5.2 GHz. For all resonant bands, the proposed antenna has a VSWR of 1.3. The High Frequency Structure Simulator is used to test the proposed antenna’s far field and scattering characteristics (HFSS). The developed antenna may be readily integrated into modern communication devices such as smart phones, laptops, and other portable electronic equipment due to its small size and inexpensive cost. To verify the simulation findings, a model of the proposed antenna is created and monitored using PIN diode switches. The measured and anticipated results for the recommended reconfigurable antenna are satisfactory.

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Erratum: “A perspective on the pathway toward full wave simulation of large area metalenses” [Appl. Phys. Lett. 119, 150502 (2021)]

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Applied Physics Letters 2021年第20期119卷

作者： Tyler W. Hughes Momchil Minkov Victor Liu Zongfu Yu Shanhui Fan 1Flexcompute Inc. 130 Trapelo Rd. Belmont Massachusetts 02478 USA 2Department of Electrical and Computer Engineering University of Wisconsin–Madison 1415 Engineering Dr. Madison Wisconsin 53706 USA 3Department of Electrical Engineering Stanford University 350 Jane Stanford Way Stanford California 94305 USA

The authors are initiating a correction to our paper1 after noticing a typo in the number of grid points reported in the FDTD simulation, which was underreporte

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Underwater channel characterization for shallow water multi-domain communications

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Proceedings of Meetings on Acoustics 2020年第1期40卷

作者： Jay Patel Mae Seto 1Department of Electrical & Computer Engineering Dalhousie University Halifax Nova Scotia B3H 4R2 CANADA patel.jay@dal.ca 2Department of Mechanical Engineering Dalhousie University Halifax Nova Scotia B3H 4R2 CANADA mae.seto@dal.ca

The underwater acoustic channel is a difficult communication medium due to its variable link quality which depends on location, time and the *** paper reports on underwater channel characterization for shallow water (< 100 m) in the Atlantic offshore of Halifax, Canada. The underwater channel characteristics drives the level of multi-domain robot collaboration possible to characterize a floating target both above- and below-water. RF communications is used between the topside unmanned surface vehicle and unmanned aerial vehicle. Underwater, acoustic modems are used between the submerged part of the unmanned surface vehicle and the unmanned underwater vehicles. The outcome is a multi-domain picture of the floating target from the sensors on these collaborating *** deployment, simulations were performed with a tool that integrates BELLHOP and newly developed complementary analysis capabilities in a MATLAB framework to determine operational ranges from range-dependent attenuation. The main contributions are an underwater acoustic environment-informed approach to placing mobile communicating nodes in a network, the network’s range predictions, channel analysis and a user-friendly GUI to manage the BELLHOP inputs and outputs. The approach and tools are validated in simulations and verified in-water. Transmission losses (TL) and underwater channel characteristics for illustrative cases are presented.

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Sedimentary aquifer accessing using 2-D resistivity imaging, case study: Blang Bintang, Aceh Besar

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AIP Conference Proceedings 2023年第1期2613卷

作者： Muhammad Syukri Zul Fadhli Amsir Sabrian Tri Anda Rini Safitri 1Department of Physics Faculty of Sciences Syiah Kuala University Darussalam Banda Aceh 23111 Indonesia. 2Department of Geophysics Engineering Faculty of Engineering Syiah Kuala University Darussalam Banda Aceh 23111 Indonesia. 3Faculty of Computer and Multimedia University of National Islamic Indonesia Indonesia

Water is a major issue that faced by the settlement area in most country around the world. Moreover, if the settlement is located in metropolis city. Based on those reasons, the authors triggered to conduct the study regarding the identification of potential aquifer. The study carried out in Blang Bintang (Aceh Besar) by utilized 2D resistivity method. The 2D resistivity survey lines were conducted with 5 m minimum electrode spacing using pole-dipole array, and the results validated with existing borehole record. The bore-log identified aquifer zone located between sandy clay and clay with depth of 56-67 m. The 2D resistivity results shows the aquifer layer located at depth of 55-70 m with resistivity value of 30-45 Ωm. Both data are significantly consistent. It can be concluded that the aquifer can be identify using 2D resistivity imaging using any available array, but the resistivity values vary depend on their geology setting.

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Conjugate heat transfer in an annulus due to partial heating-part I

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AIP Conference Proceedings 2019年第1期2148卷

作者： Azeem Maughal Ahmed Ali Baig H. M. T. Khaleed 1Department of Mathematics and Computer Science Taylor’s University No. 1 Jalan Taylor’s Subang Jaya - 47500 Selangor Darul Ehsan Malaysia 2Department of Mechanical Engineering CMR Technical Campus Hyderabad India 3Dept of Mechanical Engineering Faculty of Engineering Islamic University Madinah Munawwarra Kingdom of Saudi Arabia

Porous medium inside an annulus being subjected to conjugate heat transfer is investigated. The solid is placed at the inner radius. The bottom half of the inner radius is heated with constant temperature Th and outer radius is cooled to temperature T°. The popular numerical method such as finite element method is employed. Results are presented for width of solid and conductivity ratio between solid and fluid.

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Vowel duration in the Buckeye corpus

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Proceedings of Meetings on Acoustics 2021年第1期45卷

作者： Sean A. Fulop Hannah J. M. Scott 1Department of Linguistics California State University Fresno Fresno C A 93740 USA sfulop@mail.csufresno.edu sfulop@mail.fresnostate.edu 2Department of Electrical Engineering and Computer Science Oregon State University Corvallis OR 97331 USA hannahjmscott@***

Phonological accounts of American English [Labov, W. et al. (2006) The Atlas of North American English, Berlin: Walter de Gruyter] rely on historical and phonotactic analysis to categorize the vowels as either long (two morae) or short (one mora). The vowels of beat, bait, boot, boat, bought, bite, bout, boy are traditionally identified as long, while bit, bet, bat, book, but, bot are supposedly short. It is a reasonable question whether these vowels are indeed longer and shorter, respectively, in phonetic duration. A study of “General American” [Rositzke, H.A. (1939) “Vowel-length in General American speech,” Language15(2):99-109] examined the durations of the vowels of 5 subjects in scripted utterances, without controlling for dialect. The findings were mostly in accord with the above categories, with the exceptions that [æ, ɑ] (bat, bot) were both phonetically long. The present study is an effort to replicate Rositzke’s on 341,425 vowel tokens in the Buckeye Corpus of conversational English (40 speakers from Columbus, Ohio). The results essentially confirm that the vowels [æ, ɑ] (bat, bot) are phonetically as long as the traditional ‘long’ vowels. This situation calls the traditional analysis of American English vowel length into question.

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Lo-Ra based covid patient health detecting system

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AIP Conference Proceedings 2023年第1期2523卷

作者： Darpan Majumder S. Mohan Kumar D. V. Ashoka A Shajin Naragunam 1Department of Information Science and Engineering New Horizon College of Engineering Research Centre Visvesvaraya Technological University (VTU) Bangalore Karnataka India. 2Department of Computer Science and Engineering Nagarjuna College of Engineering & Technology Bangalore Karnataka India. 3Department of Information Science and Engineering JSS Academy of Technical Education Bangalore Karnataka India. 4Faculty of Information and Computer Engineering Noorul Islam Centre for Higher Education Kanyakumari Tamil Nadu India.

Coronavirus is an authentic WHO-proclaimed pandemic disease. Qualified professionals and medical care organizations experienced significant conditions across the world. In addition, the governmental authority develops a significant technique to alleviate the disease, to lock the nations. In this article, we proposed the covid detection system among the people by using several sensors embedded in a device to detect the people's disease. This system uses the Lora module for communication for the doctor's unit. IoT-based health networks attempt to improve health services quality through real-time data collecting and analysis. However, there are significant disadvantages with standard IoT systems. For example, they cannot function efficiently in locations with poor or unstable Internet. The solution to the question of internet services is a feasible option with technology like LPWAN (Low Power Wider Network), such as full-scale order elements, viz. Lora. The monitoring system plays a crucial role in diagnostic procedures and treatment.

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Influence of herbicide 2,4-D dimethylamine 865SL on photosynthetic mechanism of algae species Chlorella Kessleri immobilized in a biochip

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AIP Conference Proceedings 2019年第1期2169卷

作者： Lazuardi Umar Valendry Harvenda Rahmondia Nanda Setiadi Tetty Marta Linda Joachim Wiest 1Department of Physics Universitas Riau Pekanbaru Indonesia 2Department of Biology Universitas Riau Pekanbaru Indonesia 3cellasys GmbH Kronburg Germany 4Technical University of Munich Heinz-Nixdorf-Chair of Biomedical Electronics Department of Electrical and Computer Engineering TranslaTUM Munich Germany

Algae are very important to the life of human as a bio-indicator of water pollution. The observation of algae vitality can give information of the environment changes of the algae, which are shown by the changes of parameter in its environment. This study is aimed to observe the influence of toxicity of herbicide 2,4-D dimethylamine 865 SL on the vitality of algae species Chlorella Kessleri in producing dissolved oxygen as a result of photosynthetic mechanism. A 50 µL herbicide 2,4-D dimethylamine 865 SL with a concentration of 10 % was added into immobilized algae in the Biochip-C from cellasys GmbH and stimulated with artificial light of 400-700 nm for photosynthetic process. The effect of herbicide 2,4-D dimethylamine 865 SL was observed and shows the increase of the basal potential after 1500 s, which indicates the dissolved oxygen reduction in the environment of the algae. This effect is reversible and a restoration of the photosynthetic activity take place after the substance removal. The use of this toxin is systemic, which slowly kill the living cells.

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Detection of pores in additive manufactured parts by near field response of laser-induced ultrasound

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AIP Conference Proceedings 2019年第1期2102卷

作者： Timothy A. Bigelow Benjamin Schneider Hossein Taheri 1Department of Electrical and Computer Engineering Iowa State University 1915 Scholl Road Ames IA 50011 USA 2Department of Mechanical Engineering Iowa State University 1915 Scholl Road Ames IA 50011 USA 3Department of Manufacturing Engineering Georgia Southern University P.O. Box 7991 Statesboro GA 30460 USA

In-line monitoring of 3D printed parts is vital if quality is to be maintained with this new manufacturing modality. Specifically, the reliable detection of pores in printed parts is vital if the finished products are to have the desired strength characteristics. In this work, we utilize COMSOL(Burlington, MA) to numerically compare a new detection method where the interferometer and laser-generated ultrasound are focused at the same spatial location. The changes in the surface response to defects in the near-field of the induced ultrasound wave are then assessed as a function of defect size and depth. Our numerical results demonstrated that the impact of defects was easier to visualize when quantifying the surface velocity as opposed to surface displacement. The amplitude of the difference is comparable to that observed when utilizing scattering of the Rayleigh wave in the detection. However, the new approach does not require a 1 mm separation between the laser-generating ultrasound spot and the interferometer improving the spatial resolution of the detection.

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