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Journal articles on the topic 'Hot obstacles'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Weclas, M., and R. Faltermeier. "Diesel jet impingement on small cylindrical obstacles for mixture homogenization by late injection strategy." International Journal of Engine Research 8, no. 5 (2007): 399–413. http://dx.doi.org/10.1243/14680874jer01107.

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The paper deals with ‘destroying’ a high-velocity diesel fuel jet by impingement on small cylindrical obstacles. This process permits very quick jet distribution in the volume. Essential is a process of impingement on a first obstacle: its diameter, distance from the nozzle outlet, and injection pressure play a dominant role in characterizing jet distribution in space. This spatial distribution is based on a multijet model, initially observed by diesel jet impingement on a porous structure. In diesel jet impingement on a single obstacle with a smaller diameter (d=1 mm), the distribution angle

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2

Ma, Yuan, Rasul Mohebbi, Mohammad Mehdi Rashidi, and Zhigang Yang. "Effect of hot obstacle position on natural convection heat transfer of MWCNTs-water nanofluid in U-shaped enclosure using lattice Boltzmann method." International Journal of Numerical Methods for Heat & Fluid Flow 29, no. 1 (2019): 223–50. http://dx.doi.org/10.1108/hff-01-2018-0004.

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Purpose This paper aims to numerically investigate the natural convection heat transfer of multi-wall carbon nanotubes (MWCNTs)-water nanofluid in U-shaped enclosure equipped with a hot obstacle by using the lattice Boltzmann method. Design/methodology/approach The combination of the three topics (U-shaped enclosure, different positions of the hot obstacle and MWCNTs-water nanofluid) is innovative in the present study. In total, 15 different positions of the hot obstacle have been arranged, and the effects of pertinent parameters such as Rayleigh numbers, the solid volume fraction of the MWCNT

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3

Cai, Zhihao, Henry Tan, Jiang Zhao, and Yingxun Wang. "Target detection and obstacle avoidance for UAV based on dynamic vision sensor." Journal of Applied Artificial Intelligence 1, no. 1 (2024): 192–214. http://dx.doi.org/10.59782/aai.v1i1.285.

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Aiming at the problem of UAV sensing dynamic targets and avoiding high-speed dynamic obstacles in dynamic environments, a target detection and obstacle avoidance algorithm based on dynamic vision sensor is designed. A filtering method and motion compensation algorithm are designed to filter out background noise and hot spot noise in the event stream as well as redundant events caused by the camera's own motion. A dynamic target fusion detection algorithm that fuses event images and RGB images is designed to ensure the reliability of detection. The target motion trajectory is estimated based on

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4

Ma, Yanan, Qiong Shen, and Lei Tian. "Obstacles to the Development of BIM in China's Prefabricated Construction: A Decision-making Test and Evaluation Laboratory (DEMATEL) Model." SHS Web of Conferences 96 (2021): 01003. http://dx.doi.org/10.1051/shsconf/20219601003.

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With the continuous progress of the time, technology is also developing rapidly, among which Building Information Modeling (BIM) has also become a hot topic in prefabricated constructions. Previous research has made it clear that BIM can promote the development of prefabricated construction. However, in practical applications, BIM technology has not been well developed in prefabricated construction. In order to find out the obstacles to the development of BIM technology in China's prefabricated construction, and identify the relationship between obstacles, this study identified 20 obstacles th

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5

Liu, Wei. "Real-Time Obstacle Detection Based on Image Semantic Segmentation and Fusion Network." Traitement du Signal 38, no. 2 (2021): 443–49. http://dx.doi.org/10.18280/ts.380223.

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During fruit production, the robots must walk stably across the orchard, and detect the obstacles in real time on its path. With the rapid process of deep convolutional neural network (CNN), it is now a hot topic to enable orchard robots to detect obstacles through image semantic segmentation. However, most such obstacle detection schemes are under performing in the complex environment of orchards. To solve the problem, this paper proposes an image semantic fusion network for real-time detection of small obstacles. Two branches were set up to extract features from red-green-blue (RGB) image an

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6

Stevens, Stan. "Article: Small Is Beautiful: An Analysis of the HOT Proposal." EC Tax Review 33, Issue 6 (2024): 223–37. https://doi.org/10.54648/ecta2024025.

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The European Commission has published in 2023 a proposal to introduce a concept of Head Office Taxation (HOT) for small and medium sized entities by means of a directive. In April 2024 the European Parliament has adopted a legislative resolution. The purpose of the proposal is to reduce the current tax obstacles for SMEs to engage in cross border activities. In the article the author evaluates the HOT Proposal. The most relevant obstacles for SMEs are the compliance costs and the absence of the possibility to deduct cross border losses. The HOT Proposal addresses in particular the issue of com

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Altuntop, Necdet, Mevlut Arslan, Veysel Ozceyhan, and Mehmet Kanoglu. "Effect of obstacles on thermal stratification in hot water storage tanks." Applied Thermal Engineering 25, no. 14-15 (2005): 2285–98. http://dx.doi.org/10.1016/j.applthermaleng.2004.12.013.

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8

Tan, Chee Yong, Sunan Huang, Kok Kiong Tan, Rodney Swee Huat Teo, Wen Qi Liu, and Feng Lin. "Collision Avoidance Design on Unmanned Aerial Vehicle in 3D Space." Unmanned Systems 06, no. 04 (2018): 277–95. http://dx.doi.org/10.1142/s2301385018500115.

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Collision avoidance is one of the core problems in designing a multi-unmanned aerial vehicle (UAV) system. It is to ensure each UAV can reach its target without colliding with any moving or static obstacles. With increasing usage of UAVs in many application areas, research on collision avoidance algorithm has become a hot topic. Several approaches on collision avoidance have been reported. In this paper, we design a three-dimensional collision avoidance on multi-UAV systems based on the original three-dimensional velocity obstacle method.

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Yang, Zhenjie, Muhammad Ameen, Yilu Yang, et al. "Study on the Temperature and Water Distribution of Hot Air in Red Loam Based on Soil Continuous Cropping Obstacles." Agriculture 14, no. 4 (2024): 588. http://dx.doi.org/10.3390/agriculture14040588.

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In recent years, the problematic circumstances of the constant cropping problem in facility crops have become increasingly serious. Compared to chemical disinfection, soil steam disinfestation offers the benefits of environmental protection and being pollution-free, which can effectively reduce the problem of constant cropping in crops. However, during the steam disinfection procedure, a large quantity of liquid water is formed due to the condensation of high-temperature steam, which causes soil pore blockage, seriously affecting the mass and heat transfer efficacy of steam and, thus, affectin

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10

Li, Yue, Wei Han, Qingyang Chen, and Yong Zhang. "Real-Time Obstacle Avoidance for Manned/Unmanned Aircraft Cooperative System Based on Improved Velocity Obstacle Method." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 38, no. 2 (2020): 309–18. http://dx.doi.org/10.1051/jnwpu/20203820309.

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To adapt the autonomous level of agents in current, and to perform the advantages of multi-agent in air combat, the form of manned/unmanned aircraft cooperative system has gradually become a hot topic. To solve the issue of three-dimensional (3D) real-time obstacle avoidance, the 3D maneuvering obstacle model is established firstly based on the traditional velocity obstacle method. Then the flight mode is selected and the optimal obstacle avoidance plane is determined by setting the Right-of-way rules when the system encountering obstacles. Finally, the difference of obstacle avoidance plane,

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11

Durmuşoğlu, Aslı, Buket Turgut, Yusuf Tekin, and Burak Turgut. "Estimation of the Effect of Oblique Positioned Obstacle Placement on Thermal Performance of a Horizontal Mantle Hot Water Tank with Machine Learning." Applied Sciences 15, no. 1 (2024): 48. https://doi.org/10.3390/app15010048.

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Due to the growing popularity of vacuum tube solar collectors and their more esthetically pleasing look, horizontal hot water tanks are increasingly being used in solar hot water systems. In order to improve the thermal performance of a horizontal mantled hot water tank, this work numerically examines the impact of positioning inclination barriers parallel or coincident to one another at varying angles. The main input provided the velocity V = 0.036, 0.073, 0.11, and 0.147 m/s, and analysis were performed for each speed. The study concluded that V = 0.073 m/s was the ideal mains input velocity

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12

Rinawati, Seviana. "LEVEL OF SAFE BEHAVIOR WITH THE IMPLEMENTATION OF HOT WORK PERMIT APPROACH IN PT BBB EAST JAVA." Journal Of Vocational Health Studies 1, no. 3 (2018): 89. http://dx.doi.org/10.20473/jvhs.v1.i3.2018.89-96.

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Background: The causes of the accident were dominant due to unsafe behavior and other causes due to unsafe conditions and the other factors, especially in the paper industry such as PT. BBB, East Java which has a high risk of fire and the level of workers awareness towards safe behavior so it needed the assessment of safe behavior level based on the implementation of hot work permit system at PT. BBB. Purpose: this study was to determine Level of Safe Behavior with The Implementation of Hot Work Permit Approach in PT BBB East Java. Methods: This research used descriptive observational, which w

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Li, F., H. Wang, P. H. Akwensi, and Z. Kang. "CONSTRUCTION OF OBSTACLE ELEMENT MAP BASED ON INDOOR SCENE RECOGNITION." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W13 (June 5, 2019): 819–25. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w13-819-2019.

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<p><strong>Abstract.</strong> Route planning and navigation in indoor space have become a hot topic recently. To accomplish this task, a map and a real-time detection system are needed. Due to Lidar systems’ high efficiency in data acquisition, Lidar sensors have become an indispensable part of an object detection system. In this paper, we use Lidar points to generate obstacle maps. The obstacle maps can be used as a reference for route planning and navigation. To identify single objects more precisely, a deep network combined PointNet with Markov Random Field (MRF) is design

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14

Et. al., A. R. Vijay Babu,. "EXPERIMENTAL INVESTIGATION ON A SOLAR AIR HEATER WITH AND WITHOUT OBSTACLE." INFORMATION TECHNOLOGY IN INDUSTRY 9, no. 2 (2021): 251–57. http://dx.doi.org/10.17762/itii.v9i2.341.

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In this paper convection form of heat transfer is used to convert cold air to hot air. Forced convection is preferred for this experimental analysis; obstacles are also used to analyze the temperature level of air with the help of Air Heating Solar Device (AHSD). Semi Annular fins are used as obstacles for this experimental verification. The outlet temperature and pressure drop of SAH were determined by changing the fin densities with the help of software tool FLUENT. The analysis result shows that the outlet temperature is more and pressure drop was less in the case of SAH with obstacles when

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15

Abdidin, Alina, Aiym Kereikulova, Amankeldy Toleukhanov, Olivier Botella, Abdelhamid Kheiri, and Yerzhan Belyayev. "TWO-DIMENSIONAL CFD ANALYSIS OF A HOT WATER STORAGETANK WITH IMMERSED OBSTACLES." Journal of Mathematics, Mechanics and Computer Science 123, no. 3 (2024): 57–80. http://dx.doi.org/10.26577/jmmcs2024-v123-i3-7.

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A comprehensive study was conducted to develop a two-dimensional mathematical model for a thermal storage tank containing internal disk-shaped obstacles. This model, incorporating appropriate initial and boundary conditions, was solved using the built-in solvers of the licensed COMSOL Multiphysics 5.6 software. The COMSOL model demonstrated a maximum deviation of 2.2% from experimental results and even smaller discrepancies compared to ANSYS Fluent, validating its accuracy in describing the charging and discharging processes of a sensible heat storage tank with internal obstacles. Using this v

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16

Zhu, Tongyu, and Jianjun Yu. "A Prerecognition Model for Hot Topic Discovery Based on Microblogging Data." Scientific World Journal 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/360934.

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The microblogging is prevailing since its easy and anonymous information sharing at Internet, which also brings the issue of dispersing negative topics, or even rumors. Many researchers have focused on how to find and trace emerging topics for analysis. When adopting topic detection and tracking techniques to find hot topics with streamed microblogging data, it will meet obstacles like streamed microblogging data clustering, topic hotness definition, and emerging hot topic discovery. This paper schemes a novel prerecognition model for hot topic discovery. In this model, the concepts of the top

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17

Feng, Xiangzhou, and Xiqiao Huang. "Influence of Variable Blocking Ratio on DDT Process." Energies 15, no. 20 (2022): 7706. http://dx.doi.org/10.3390/en15207706.

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The influence of a variable blocking ratio on the DDT process is investigated through numerical simulation and experiment. Two dimensionless parameters, the average blocking ratio (BR¯) and the blocking ratio change rate (α), are specified to characterize the blocking ratio of obstacles. Four arrangements are utilized to describe the variation trend of the blocking ratio in a combustor. The main results are as follows: The obstacles can stretch the flame surface and facilitate reflection and diffraction of shock waves, which causes the acceleration of the flame front. The “hot spot” plays a vi

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18

Pratiwi, Komang Sri, Putu Indah Rahmawati, and Nyoman Dini Andiani. "Strategi Chef De Partie Hot Kitchen Dalam Meningkatkan Kualitas Makanan Di Discovery Kartika Plaza Hotel." Jurnal Manajemen Perhotelan dan Pariwisata 2, no. 1 (2019): 1. http://dx.doi.org/10.23887/jmpp.v2i1.22080.

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Abstrak Penelitian ini bertujuan untuk mengetahui kendala-kendala apa saja yang dialami chef de partie hot kitchen dalam meningkatkan kualitas makanan di Discovery Kartika Plaza Hotel serta strategi dalam meningkatkan kualitas makanan di Discovery Kartika Plaza Hotel. Metode pengumpulan data yang digunakan adalah observasi, wawancara, dokumentasi. Subjek dalam penelitian ini adalah Chef de Partie hot kitchen Discovery Kartika Plaza Hotel. Objek penelitian ini adalah strategi chef de partie hot kitchen dalam meningkatkan kualitas makanan di Discovery Kartika Plaza Hotel. Teknik analisis data ya

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19

Malec, Agnieszka, Tomasz Cholewa, and Alicja Siuta-Olcha. "Influence of Cold Water Inlets and Obstacles on the Energy Efficiency of the Hot Water Production Process in a Hot Water Storage Tank." Energies 14, no. 20 (2021): 6509. http://dx.doi.org/10.3390/en14206509.

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Domestic hot water preparation is one of the main sources of energy consumption in households. One of the most important elements of domestic hot water (DHW) preparation installation is the storage tank. Its design can significantly affect the efficiency of the system and energy consumption for hot water preparation. This paper presents the results of an experimental study to examine seven different designs of the cold water inlet to the storage tank and the use of two types of obstacles inside this tank placed at three different heights. The number of stratification and the energy efficiency

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20

Wang, Qixiang, Zhang Zhigang, Zhongquan Li, et al. "Study on the thermal and mass evolution behavior of methane air premixed gas under rigid and flexible obstacles." Thermal Science, no. 00 (2024): 283. https://doi.org/10.2298/tsci240905283w.

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There has been a lack of public reports on the combustion and explosion risks under the coupling effect of different structural materials in coal mine tunnels. Therefore, this article uses a square pipeline with a cross-section of 0.01m2and a length of 1m to study the methane combustion and explosion process under different blockage rates and rigid and flexible obstacle arrangements, in order to fully reveal the impact of tunnel construction on explosions. The results indicate that when a rigid obstacle is in the forward position, the blockage rate of a flexible obstacle is positively correlat

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21

Martyushov, S. N. "Calculation of Deflagration Appearence in Hydrogen-Air Mixtures Flows in Regions with Obstacles." Journal of Physics: Conference Series 2701, no. 1 (2024): 012135. http://dx.doi.org/10.1088/1742-6596/2701/1/012135.

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Abstract Many researches devoted to deflagration appearance in hydrogen-air mixes and transition it to detonation. Preference of hydrogen as a fuel is detonation fuel cycle which is more energetic preferable in comparing with ordinary fuel cycle. In connection with this preference problem of hydrogen detonation engine constructing is extreme actual. Essential part of investigations in this field is developing and improving of mathematical methods for numerical simulation of deflagration initiation and transition it to stable detonation. In real physical experiments this deflagration initiation

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22

Wang, Xiang Yang. "Hot Topic Detection in News Blog." Applied Mechanics and Materials 513-517 (February 2014): 1114–18. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.1114.

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Topic detection in news blogs needs to carefully arrange the information and analyze the characteristics of topics. However, there are some difficulties for hot topic detection in blogs. On one hand, information overload and dynamic change of web pages are obstacles of information arrangement. On the other hand, there are different hotness evaluation norms for web topics. The proposed method first analyzes the characteristics of the news blog and recognizes the factors which can influence the evolution of a topic. Then a word network is constructed, and candidate topics are extracted from the

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23

Erdemir, Dogan, and Necdet Altuntop. "Improved thermal stratification with obstacles placed inside the vertical mantled hot water tanks." Applied Thermal Engineering 100 (May 2016): 20–29. http://dx.doi.org/10.1016/j.applthermaleng.2016.01.069.

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24

Troshin, K. Ya, N. M. Rubtsov, V. I. Chernysh, and G. I. Tsvetkov. "Features of the interaction of the combustion front of diluted methane–oxygen mixtures with hollow cylindrical and conical obstacles at low pressures." Himičeskaâ fizika 43, no. 5 (2024): 59–67. https://doi.org/10.31857/s0207401x24050074.

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It was shown that the front of the flame of a well-mixed diluted methane–oxygen mixture at 298 K and 100–300 Torr propagating to the ends of hollow cylindrical and conical obstacles does not form a vortex shedding behind them; however, that instability occurs under the same conditions in the flow of hot products after the obstacles. To find out the reason that vortex shedding is not observed behind the obstacle at flame propagation, but vortex shedding appears in the course of propagation of a reflected stream of hot products, we consider the curved flame front. Let us show that the thermal co

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Cobbald, T. J. "Technical Note — The impingement of underexpanded axisymmetric rocket motor exhausts and cold jets on flat plates." Aeronautical Journal 96, no. 951 (1992): 27–28. http://dx.doi.org/10.1017/s0001924000024441.

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Rocket motors are used to provide propulsive thrust for various types of aerospace vehicle. The thrust is developed by the supersonic jets of hot gas emitted through the rocket motor exhaust nozzles. Usually, for most flight trajectories of rocket-propelled aerospace vehicles, the exhaust jets expand freely into the ambient medium. There are, however, instances where the exhaust jets impinge on solid obstacles which are either unavoidably or deliberately positioned in the vicinity of the rocket motor exhaust nozzles. In these cases, the exhaust jets are deflected from their normal paths. When

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26

Sari, Hassoun, Khaled Aliane, Ali Akgul, et al. "Numerical investigation of the interaction between the roughness and the triangular obstructions in a rectangular channel." Thermal Science 27, Spec. issue 1 (2023): 365–72. http://dx.doi.org/10.2298/tsci23s1365s.

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The study is conducted around a heat exchanger, its channel is horizontal rect?angular, its upper wall is isothermal, while its lower wall is thermally insulated, containing extended surfaces in the form of triangular obstacles attached in a stag?gered manner periodically. Four models of the channel with various roughnesses were compared in this study. Square, triangular Type 1, triangular Type 2, and triangular Type 3 roughnesses, which are positioned on the hot top part of the channel (absorber), downstream of the last obstacle, are examined to promote heat transfer between the absorber and

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Tereshko, D. A., and A. P. Kudryashov. "Numerical simulation of the submerged hot jet propagation in a bounded domain with obstacles." Dal nevostochnyi Matematicheskii Zhurnal 22, no. 2 (2022): 252–54. http://dx.doi.org/10.47910/femj202234.

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28

Ni, Jianjun, Wenbo Wu, Jinrong Shen, and Xinnan Fan. "An Improved VFF Approach for Robot Path Planning in Unknown and Dynamic Environments." Mathematical Problems in Engineering 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/461237.

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Robot path planning in unknown and dynamic environments is one of the hot topics in the field of robot control. The virtual force field (VFF) is an efficient path planning method for robot. However, there are some shortcomings of the traditional VFF based methods, such as the local minimum problem and the higher computational complexity, in dealing with the dynamic obstacle avoidance. In this paper, an improved VFF approach is proposed for the real-time robot path planning, where the environment is unknown and changing. An area ratio parameter is introduced into the proposed VFF based approach

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29

Li, Haoxuan, Daoxiong Gong, and Jianjun Yu. "An obstacles avoidance method for serial manipulator based on reinforcement learning and Artificial Potential Field." International Journal of Intelligent Robotics and Applications 5, no. 2 (2021): 186–202. http://dx.doi.org/10.1007/s41315-021-00172-5.

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AbstractThe obstacles avoidance of manipulator is a hot issue in the field of robot control. Artificial Potential Field Method (APFM) is a widely used obstacles avoidance path planning method, which has prominent advantages. However, APFM also has some shortcomings, which include the inefficiency of avoiding obstacles close to target or dynamic obstacles. In view of the shortcomings of APFM, Reinforcement Learning (RL) only needs an automatic learning model to continuously improve itself in the specified environment, which makes it capable of optimizing APFM theoretically. In this paper, we in

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30

Sasmia. "Kebijakan Pengembangan Pariwisata di Wilayah Kecamatan Padarincang Kabupaten Serang Berdasarkan Peraturan Daerah Nomor 8 Tahun 2014." Prosiding Seminar Nasional Komunikasi, Administrasi Negara dan Hukum 1, no. 1 (2023): 233–40. http://dx.doi.org/10.30656/senaskah.v1i1.131.

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This study aims to describe and explain tourism development policies, namely the natural tourist attraction Batu Kuwung hot springs which is located about 32 km south of the city of Serang to be precise in Padarincang sub-district, Serang Regency, Banten Province, Indonesia. With good natural resource potential, including many mountains and very large river flows so that there are many natural tourist objects, therefore this research will discuss how the policy for developing natural tourism in Batu Kuwung hot springs as a regional tourist destination in Padarincang sub-district. district base

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Erkaev, N. V., P. Odert, H. Lammer, et al. "Effect of stellar wind induced magnetic fields on planetary obstacles of non-magnetized hot Jupiters." Monthly Notices of the Royal Astronomical Society 470, no. 4 (2017): 4330–36. http://dx.doi.org/10.1093/mnras/stx1471.

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Oss, Stefano. "Making jets of air visible in the infrared." Physics Education 57, no. 4 (2022): 043001. http://dx.doi.org/10.1088/1361-6552/ac59cf.

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Abstract An easy experiment is suggested to visualize the shape of a jet of hot air, coming from a hair dryer, which encounters obstacles along its path. Quite simply, owing to the heating produced on a flat surface, it is possible to acquire infrared thermal images of the jet. As a particular example, we observe the entrainment of air which is the basis of the Coanda effect.

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Jambago, Nurmala Sari, Ennimay Ennimay, Yuyun Priwahyuni, Jasrida Yunita, and Doni Jepisah. "Penerapan Aplikasi e-Puskesmas dengan Pendekatan HOT-Fit di Kabupaten Siak (Studi Kualitatif)." Jurnal Kesehatan Masyarakat Indonesia 17, no. 1 (2022): 58. http://dx.doi.org/10.26714/jkmi.17.1.2022.58-66.

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Background: e-Puskesmas as a Health Information System for Public Health Center based on information technology, can present information accurately, quickly and reliably, so that the information presented can be used for decision making. From the initial survey, the implementation of the e-Puskesmas application experienced problems in the field, namely network constraints, applications that were sometimes not connected to Healthcare and Social Security Agency (BPJS), officers had not been able to feel the benefits of implementing the application, there was no decree to determine the person in

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Falah Maulana Pujangga Putra Pratama. "Peranan Kantor Otoritas Bandar Udara Wilayah Iii Dalam Mengawasi Balon Udara Demi Menjaga Keamanan Dan Keselamatan Penerbangan." Student Scientific Creativity Journal 1, no. 4 (2023): 169–80. http://dx.doi.org/10.55606/sscj-amik.v1i4.1618.

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One of the objects monitored by the Airport Authority is the activity of hot air balloons in the air space. The presence of an uncontrolled hot air balloon certainly results in disruption of the aircraft flight path which will cause flight safety to be threatened. Therefore, all forms of disruption to the flight path that have the potential for danger must be handled immediately to ensure flight safety. This study aims to find out the role and constraints experienced by the Airport Authority Office Region III in supervising hot air balloons in order to maintain flight security and safety. This

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Zheng, Yaqi, Yuan Zhang, Yun Liu, Yaqiang Tian, Xiaoping Zheng, and Liansheng Chen. "Microstructure Characteristics and Corrosion Behaviors of Mg-2Zn-2Er-0.3Zr-0.3Mn Alloy under Various Rolling Reductions." Metals 12, no. 2 (2022): 365. http://dx.doi.org/10.3390/met12020365.

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The poor corrosion resistance of magnesium alloys is one of the major obstacles to their widespread applications in the engineering field and the medical field. A hot deformation process is the main way to improve the corrosion resistance of magnesium alloys. In the present study, X-ray photoelectron spectroscopy (XPS), a scanning electron microscope (SEM), an electron probe micro-analyzer (EPMA) and X-ray diffraction (XRD) were used to investigate the micro-galvanic corrosion behavior and film protection mechanism of hot-rolled Mg-2Zn-2Er-0.3Zr-0.3Mn under 25%, 50% and 75% thickness reduction

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Zaid, Zaid, and Ferdin Okta Wardana. "PERAN KEPOLISIAN DALAM MENANGANI KASUS TRADISI PENERBANGAN BALON UDARA DI PONOROGO." Legalitas: Jurnal Hukum 13, no. 1 (2021): 10. http://dx.doi.org/10.33087/legalitas.v13i1.240.

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This study aims to reveal how the role of the police in handling the case of the traditional hot air balloon flight in Ponorogo which includes law enforcement, obstacles experienced, and future concepts based on the perspective of the police. Therefore, this research will be juridical and empirical by using a statutory and qualitative approach. After processing data using qualitative analysis, the results of this study reveal that the police have the authority to enforce the law against anyone who violates the order, safety, or laws and regulations. It's just that in matters of investigation,

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Tarabini, Marco. "Red Hot Steel: Challenges of 3D Optical Metrology in Open-Die Forging." International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLVIII-2/W7-2024 (December 13, 2024): 169–75. https://doi.org/10.5194/isprs-archives-xlviii-2-w7-2024-169-2024.

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Abstract. Complex challenges arise from the integration of 3D optical metrology in contemporary steelmaking and metal-working operations. Contrary to expectation, the greatest difficulties do not arise from the obstacles posed by high temperatures or harsh environments requiring robust measurement solutions. Often, there's a nuanced understanding of metrology concepts, with experts struggling to distinguish between instrumental uncertainty, measurand variability and definitional uncertainty. This paper aims to underscore the importance of technological innovation and interdisciplinary collabor

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Dargush, G. F., and P. K. Banerjee. "Development of an Integrated BEM for Hot Fluid-Structure Interaction." Journal of Engineering for Gas Turbines and Power 112, no. 2 (1990): 243–50. http://dx.doi.org/10.1115/1.2906170.

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A boundary element approach is developed for problems of hot fluid-structure interaction. The structure is idealized as a thermoelastic solid, and a time-domain, boundary-only integral formulation is described. Meanwhile, several approaches are discussed for the hot fluid. Integral equations are developed for both compressible and incompressible thermoviscous flow. Due to the presence of nonlinear convective terms in the governing differential equations, domain discretization is generally required. However, with the introduction of reference velocities, volume modeling often can be confined to

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Abed, Mustafa Salah, Omar Farouq Lutfy, and Qusay Fadhel Al-Doori. "Adaptive weight grey wolf algorithm application on path planning in unknown environments." Indonesian Journal of Electrical Engineering and Computer Science 27, no. 3 (2022): 1375. http://dx.doi.org/10.11591/ijeecs.v27.i3.pp1375-1387.

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Autonomous mobile robots developed using metaheuristic algorithms are increasingly becoming a hot topic in control and computer sciences. Specifically, finding the shortest route to the goal and avoiding hurdles are current subjects of autonomous mobile robots. The Modified Grey Wolf Optimization (MGWO) is demonstrated in this work using two approaches: first, the Adaptive Adjustment Approach of the Control Parameters, and second, the Adaptive Variable Weights method. Those two methods are utilized for updating the wolf position, accelerate convergence, and cut down on time. The proposed onlin

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Abed, Mustafa Salah, Omar Farouq Lutfy, and Qusay Fadhel Al-Doori. "Adaptive weight grey wolf algorithm application on path planning in unknown environments." Indonesian Journal of Electrical Engineering and Computer Science 27, no. 3 (2022): 1375–87. https://doi.org/10.11591/ijeecs.v27.i3.pp1375-1387.

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Autonomous mobile robots developed using metaheuristic algorithms are increasingly becoming a hot topic in control and computer sciences. Specifically, finding the shortest route to the goal and avoiding hurdles are current subjects of autonomous mobile robots. The modified grey wolf optimization (MGWO) is demonstrated in this work using two approaches: first, the adaptive adjustment approach of the control parameters, and second, the adaptive variable weights method. Those two methods are utilized for updating the wolf position, accelerate convergence, and cut down on time. The proposed onlin

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Dewi, Tika Sari, Ratna Prahesti, and Suryo Nugroho Markus. "Hambatan Implementasi Rekam Medis Elektronik Dengan Metode HOT-Fit di RST Tk.II dr. Soedjono Magelang." Jurnal Indonesia Sehat 3, no. 2 (2024): 62–73. https://doi.org/10.58353/jurinse.v3i2.211.

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Background: Implementation of Electronic Medical Records (EMR) still has many obstacles faced by hospitals. There is a need for a comprehensive EMR evaluation to identify specific problems so that they can be used as a basis for decision making aimed at improving EMR. Purpose: The aim of this research is to exploring barriers to EMR implementation using the Hot-Fit model at RST Tk.II dr. Soedjono Magelang. Method: This research was used the qualitative study type of research with a cross sectional approach. The selected informants were 7 people consisting of the head of the medical records uni

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Nyabuga, Douglas Omwenga, та Godfrey Nyariki. "Learning high-level spectral-spatial features for hyperspectral image classiﬁcation with insufficient labeled samples". IAES International Journal of Artificial Intelligence (IJ-AI) 14, № 2 (2025): 1211. https://doi.org/10.11591/ijai.v14.i2.pp1211-1219.

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Hyperspectral image (HSI) classification research is a hot area, with a mass of new methods being developed to improve performance for specific applications that use spatial and spectral image material. However, the main obstacle for scientists is determining how to identify HSIs effectively. These obstacles include an increased presence of redundant spectral information, high dimensionality in observed data, and limited spatial features in a classification model. To this end, we, therefore, proposed a novel approach for learning high-level spectral-spatial features for HSI classiﬁcation with

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Douglas, Omwenga Nyabuga, and Nyariki Godfrey. "Learning high-level spectral-spatial features for hyperspectral image classification with insufficient labeled samples." IAES International Journal of Artificial Intelligence (IJ-AI) 14, no. 2 (2025): 1211–19. https://doi.org/10.11591/ijai.v14.i2.pp1211-1219.

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Hyperspectral image (HSI) classification research is a hot area, with a mass of new methods being developed to improve performance for specific applications that use spatial and spectral image material. However, the main obstacle for scientists is determining how to identify HSIs effectively. These obstacles include an increased presence of redundant spectral information, high dimensionality in observed data, and limited spatial features in a classification model. To this end, we, therefore, proposed a novel approach for learning high-level spectral-spatial features for HSI classification with

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Bonomo, Aldo S., Pierre-Yves Chabaud, Magali Deleuil, Claire Moutou, and Pascal Bordé. "Detection of small-size planetary candidates with CoRoT data." Proceedings of the International Astronomical Union 6, S276 (2010): 523–24. http://dx.doi.org/10.1017/s1743921311021065.

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AbstractWith the discovery of CoRoT-7b, the first transiting super-Earth, the CoRoT space mission has shown the capability to detect short-period rocky planets around solar-like stars. By performing a blind test with real CoRoT light curves, we want to establish the detection threshold of small-size planets in CoRoT data. We investigate the main obstacles to the detection of transiting super-Earths in CoRoT data, notably the presence of short-time scale variability and hot pixels.

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Elmayati, Elmayati, Bunga Intan, Deni Nurdiansyah, Aprilsa Milenia, and Yogi Kelpin. "Application of Hot Fit Model to Analyze Information Technology Ams (Academic Management System)." SinkrOn 7, no. 3 (2022): 822–33. http://dx.doi.org/10.33395/sinkron.v7i3.11462.

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Bina Insan University has applied a computer-based information system. This system is named AMS (Academic Management System). The application of AMS (Academic Management System) at this time is still experiencing various obstacles and obstacles at the level of user acceptance. This study aims to analyze the results of the evaluation of the success factors for implementing AMS (Academic Management System) using the Hot-Fit Model (Human Organization Technology – Net benefits). This model was chosen because this model can provide an explanation and provide an evaluation of the factors that influe

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Sriyanti, Sriyanti, and Aulia Singa Zanki. "BEST PRACTICE EDUPRENEURSHIP BERBASIS PEMBELAJARAN SENTRA BERKEBUN DI PAUD DARUSSALAM BOJONEGORO." Al-Hikmah : Indonesian Journal of Early Childhood Islamic Education 5, no. 1 (2021): 51–62. http://dx.doi.org/10.35896/ijecie.v5i1.181.

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This qualitative research uses a case study approach. The data source was obtained by interviewing three gardening center teachers. This study aims to explain three things. (1) learning edupreneurship with gardening centers in PAUD Darussalam, (2) obstacles faced, (3) efforts to overcome these obstacles. The results obtained are as follows: first, edupreneurship learning in PAUD Darussalam was carried out by utilizing hydroponic plants in a green house. Second, the obstacles faced in learning edupreneurship in gardening centers: (1) the location on the roof of the building is hot, (2) there is

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Abed, Mustafa S., Omar F. Lutfy, and Qusay F. Al-Doori. "Online Path Planning of Mobile Robots Based on African Vultures Optimization Algorithm in Unknown Environments." Journal Européen des Systèmes Automatisés 55, no. 3 (2022): 405–12. http://dx.doi.org/10.18280/jesa.550313.

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Autonomous mobile robots developed using metaheuristic algorithms are increasingly becoming a hot topic in control and computer sciences. Specifically, finding the shortest root to the goal and avoiding hurdles are current subjects of autonomous mobile robots. The main drawbacks of classic methods are the incapacity to move the robot in a dynamic and unknown environment, deadlock in a local minimum and complicated environments, and incapacity to foretell the speed vector of obstacles and non-optimality of the route. This article exhibits a recent path planning approach that utilizes the Africa

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Chen, Cheng, Hua Shun Yu, Jing Jing Zhang, Wei Zhang, and Shou Hui Wang. "Fabrication and Thermal Physical Properties of SiC_p/Al Composite upon Powder Metallurgy Followed by Hot Extrusion." Advanced Materials Research 320 (August 2011): 297–302. http://dx.doi.org/10.4028/www.scientific.net/amr.320.297.

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In this study, SiC particles reinforced aluminum matrix composite was successfully fabricated using powder metallurgy technique followed by hot extrusion. The phases were identified by XRD and the microstructures were observed by SEM. The results showed that only Al and SiC phases existed in the composite, SiC particulates were well distributed in the aluminum matrix and the interface between Al and SiC was clean and well combined. Meanwhile, thermal conductivity and coefficient of thermal expansion of the composite were investigated, the research showed that thermal conductivity decreased as

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Menni, Younes, Ahmed Azzi, Ali J. Chamkha, and Souad Harmand. "Effect of wall-mounted V-baffle position in a turbulent flow through a channel." International Journal of Numerical Methods for Heat & Fluid Flow 29, no. 10 (2019): 3908–37. http://dx.doi.org/10.1108/hff-06-2018-0270.

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Purpose The purpose of this paper is to carry out a numerical study on the dynamic and thermal behavior of a fluid with a constant property and flowing turbulently through a two-dimensional horizontal rectangular channel. The upper surface was put in a constant temperature condition, while the lower one was thermally insulated. Two transverse, solid-type obstacles, having different shapes, i.e. flat rectangular and V-shaped, were inserted into the channel and fixed to the top and bottom walls of the channel, in a periodically staggered manner to force vortices to improve the mixing, and conseq

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Hemmat Esfe, Mohammad, Sina Niazi, Seyed Sadegh Mirtalebi Esforjani, and Mohammad Akbari. "MIXED CONVECTION FLOW AND HEAT TRANSFER IN A VENTILATED INCLINED CAVITY CONTAINING HOT OBSTACLES SUBJECTED TO A NANOFLUID." Heat Transfer Research 45, no. 4 (2014): 309–38. http://dx.doi.org/10.1615/heattransres.2013006880.

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