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687 Results Found

  • Article
  • Open Access
8 Citations
3,241 Views
13 Pages

22 June 2021

The National Typhoon Center of the Korea Meteorological Administration developed a statistical–dynamical typhoon intensity prediction model for the western North Pacific, the CSTIPS-DAT, using a track-pattern clustering technique. The model led to si...

  • Article
  • Open Access
3 Citations
2,416 Views
10 Pages

Optimization of Milling Parameters of Unmodified Calotropis Procera Fiber-Reinforced PLA Composite (UCPFRPC)

  • Hassan K. Langat,
  • Fredrick M. Mwema,
  • James N. Keraita,
  • Esther T. Akinlabi,
  • Job M. Wambua and
  • Tien-Chien Jen

1 October 2021

This study involves the optimization of the milling parameters of unmodified Calotropis Procera fiber-reinforced PLA composite (UCPFRPC). The material is prepared from the combination of 20% Calotropis-Procera and 80% of PLA by weight. The experiment...

  • Article
  • Open Access
1,750 Views
19 Pages

The interface between ice and fluid can become unstable and devolve into cyclic steps bounded by hydraulic jumps. These steps are created by flowing water or wind over the ice surface. This study presents an analytical model to reproduce cyclic steps...

  • Feature Paper
  • Article
  • Open Access
1 Citations
2,071 Views
17 Pages

Spatial Variability of Surface Waves and Nearshore Currents Induced by Hurricane Harvey along the Southern Texas Coast

  • Angélica Romero-Arteaga,
  • Amaia Ruiz de Alegría-Arzaburu and
  • Bernardo Esquivel-Trava

11 November 2022

Extreme weather events such as hurricanes are expected to become more severe with the human-induced increase in average global temperatures, exacerbating the risk of major damage. Efforts to predict these events typically require detailed hydrodynami...

  • Article
  • Open Access
17 Citations
6,127 Views
15 Pages

Simulating Spawning and Juvenile Rainbow Trout (Oncorhynchus mykiss) Habitat in Colorado River Based on High-Flow Effects

  • Weiwei Yao,
  • Huaxian Liu,
  • Yuansheng Chen,
  • Wenyi Zhang,
  • Yu Zhong,
  • Haiyan Fan,
  • Linkai Li and
  • Sudeep Bamal

22 February 2017

High flow generates significant alterations in downstream river reaches, resulting in physical condition changes in the downstream regions of the river such as water depth, flow velocity, water temperature and river bed. These alterations will lead t...

  • Article
  • Open Access
11 Citations
5,259 Views
16 Pages

31 May 2017

Although two thirds of the world’s euphausiid species occur in the Indian Ocean, environmental factors influencing patterns in their diversity across this atypical ocean basin are poorly known. Distribution data for 56 species of euphausiids were ext...

  • Communication
  • Open Access
1 Citations
2,136 Views
14 Pages

23 March 2023

Basal melt in the Dome A region will influence the deep-ice-core drilling at Kunlun Station. The melting point (wet bedrock) has a higher reflectivity than the surrounding area, which can be assessed using radar echoes from the bedrock. This paper us...

  • Article
  • Open Access
41 Citations
8,574 Views
16 Pages

Soil Water Content Estimation Using High-Frequency Ground Penetrating Radar

  • Ligang Zhou,
  • Dongsheng Yu,
  • Zhaoyan Wang and
  • Xiangdong Wang

17 May 2019

The rapid high-precision and nondestructive determination of shallow soil water content (SWC) is of vital importance to precision agriculture and water resource management. However, the low-frequency ground penetrating radar (GPR) technology currentl...

  • Article
  • Open Access
1 Citations
2,326 Views
14 Pages

Assessment of Soil Temperature and Its Change Trends in the Permafrost Regions of the Northern Hemisphere

  • Yifan Wu,
  • Guojie Hu,
  • Lin Zhao,
  • Defu Zou,
  • Xiaofan Zhu,
  • Yao Xiao,
  • Tonghua Wu,
  • Xiaodong Wu,
  • Youqi Su and
  • Rui Zhang

9 July 2024

In this paper, we used data from 42 soil temperature observation sites in permafrost regions throughout the Northern Hemisphere to analyze the characteristics and variability in soil temperature. The observation data were used to evaluate soil temper...

  • Article
  • Open Access
10 Citations
6,283 Views
15 Pages

Groundwater Temperature Modelling at the Water Table with a Simple Heat Conduction Model

  • Pavla Pekárová,
  • Andrej Tall,
  • Ján Pekár,
  • Justína Vitková and
  • Pavol Miklánek

19 October 2022

This study aimed at the analysis and modelling of the groundwater temperature at the water table in different regions of Slovakia. In the first part, the analysis of the long-term trends of air and soil/ground temperature to a depth of 10 m is presen...

  • Article
  • Open Access
3 Citations
3,200 Views
20 Pages

Groundwater/Surface Water Temperature Variations and Hydrogeological Implications in Doñana National Park

  • José Luis Yanes,
  • Alejandro Jiménez-Bonilla,
  • Marina Martínez-Caro,
  • Ana Fernández-Ayuso and
  • Miguel Rodríguez-Rodríguez

This study analyzes the evolution of surface water and groundwater temperatures at various depths in the sand-dune ponds of Doñana National Park (southern Spain) over eight hydrometeorological years (2016–2024). This research aims to cha...

  • Article
  • Open Access
1 Citations
2,354 Views
18 Pages

18 March 2023

An ocean acoustic tomography (OAT) experiment conducted in the northern South China Sea in 2021 measured a month-long record of acoustic travel times along paths of over one hundred kilometers in range. A mesoscale eddy passed through the experimenta...

  • Article
  • Open Access
67 Citations
4,944 Views
28 Pages

8 February 2020

Deep borehole heat exchangers (DBHEs) extract heat from the medium-depth geothermal energy with the depth of 2–3 km and provide high-temperature heat source for the medium-depth geothermal heat pump systems (MD-GHPs). This paper focuses on the...

  • Article
  • Open Access
5 Citations
4,957 Views
12 Pages

Freezing and Thawing Processes of Highways in Kazakhstan

  • Bagdat Teltayev,
  • Cesare Oliviero Rossi,
  • Koblanbek Aitbayev,
  • Elena Suppes,
  • Aidos Yelshibayev and
  • Assel Nugmanova

23 November 2022

This paper presents the results of an experimental study of freezing and thawing patterns of highways in Kazakhstan. Special sensors measure temperature and moisture change every hour in automatic mode. The purpose of this work is to develop a method...

  • Article
  • Open Access
8 Citations
2,076 Views
14 Pages

26 November 2021

The thermally activated building system (TABS) can reduce the peak load by integrating with the ground heat exchangers. When integrated, the cost of groundwork and stability of the ground temperature would counteract because the weather conditions wo...

  • Article
  • Open Access
8 Citations
3,089 Views
11 Pages

Long-Period Fiber Grating Sensor Based on a Conductive Polymer Functional Layer

  • Ching-Yu Hsu,
  • Chia-Chin Chiang,
  • Hsin-Yi Wen,
  • Jian-Jie Weng,
  • Jing-Lun Chen,
  • Tao-Hsing Chen and
  • Ya-Hui Chen

4 September 2020

A temperature sensor was fabricated with a functional conductive poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) coating on a long-period fiber grating (LPFG). The LPFG was fabricated by laser-assisted wet-chemical etching for cont...

  • Technical Note
  • Open Access
14 Citations
4,804 Views
10 Pages

Temperature Profiling of Waterbodies with a UAV-Integrated Sensor Subsystem

  • Cengiz Koparan,
  • Ali Bulent Koc,
  • Calvin Sawyer and
  • Charles Privette

21 July 2020

Evaluation of thermal stratification and systematic monitoring of water temperature are required for lake management. Water temperature profiling requires temperature measurements through a water column to assess the level of thermal stratification w...

  • Article
  • Open Access
1,361 Views
15 Pages

Xylem Formation in Populus euphratica and Its Response to Environmental Factors in the Lower Reaches of Tarim River, China

  • Miaomiao Li,
  • Qingzhi He,
  • Mao Ye,
  • Weilong Chen,
  • Guoyan Zeng,
  • Xiaoting Pan and
  • Xi Zhang

12 July 2024

In order to gain a deeper understanding of the effects of environmental factors on the formation of Populus euphratica xylem, this study analysed the anatomical characteristics of Populus euphratica xylem and its response to environmental factors usi...

  • Article
  • Open Access
911 Views
20 Pages

Simulation and Experimental Study of Multi-Particle Grinding Based on W-M Fractal Dimension

  • Shengfang Zhang,
  • Zhiyi Leng,
  • Qiang Duan,
  • Mingjie Lu,
  • Hongtao Gu,
  • Ziguang Wang and
  • Yu Liu

31 March 2025

Extended operation in complex environments characterized by high temperatures, pressures, and hydrogen exposure can lead to performance degradation for S32168 stainless steel welds of hydrogenation reactors, which significantly impacts the reliabilit...

  • Article
  • Open Access
24 Citations
5,268 Views
20 Pages

29 December 2019

Climate models are important tools to assess current and future climate. While they have been extensively used for studying temperature and precipitation, only recently regional climate models (RCMs) arrived at horizontal resolutions that allow studi...

  • Article
  • Open Access
485 Views
22 Pages

Climate and Groundwater Depth Relationships in Selected Breede Gouritz Water Management Area Subregions Between 2009 and 2020

  • Monica M. Correia,
  • Thokozani Kanyerere,
  • Nebo Jovanovic,
  • Jacqueline Goldin and
  • Moyin John

30 June 2025

Groundwater resources are changing under the current climate change trajectory. Mitigation and adaptation measures include understanding the inter-working relationships among all climate variables and water resources, specifically groundwater, since...

  • Review
  • Open Access
5 Citations
5,130 Views
23 Pages

24 April 2022

The paper reviews and summarizes data on the physicochemical parameters and chemical features of mineralizing fluids at porphyry deposits of the Cu–Mo–Au system. The calculated average values and ranges of parameters of the fluids in mine...

  • Article
  • Open Access
2 Citations
2,367 Views
15 Pages

Microhabitats can provide thermal niches that affect geographic range shifts of species as the climate changes and provide refuges for pest and beneficial insect populations in agricultural regions. The spatial distribution of microhabitats is influe...

  • Article
  • Open Access
2 Citations
2,430 Views
14 Pages

Optimization of Cooling Channel Structure of Bipolar Plate for Proton Exchange Membrane Fuel Cells Based on CFD Analysis

  • Wenbin Wang,
  • Haoran Jia,
  • Guoxiang Li,
  • Wen Sun,
  • Ke Sun,
  • Shuzhan Bai and
  • Hao Cheng

8 August 2023

The working temperature affects the performance of PEMFC, so a reasonable and efficient cooling channel is necessary to control the working temperature in an efficient area. In this study, the channel structure of the bipolar plate for PEMFC is analy...

  • Article
  • Open Access
1 Citations
2,937 Views
23 Pages

Climate and Permafrost Shifts in Yakutia’s Arctic and Subarctic from 1965 to 2023

  • Alexander N. Fedorov,
  • Pavel Y. Konstantinov,
  • Nikolay F. Vasilyev,
  • Stepan P. Varlamov,
  • Yuri B. Skachkov,
  • Alexey N. Gorokhov,
  • Svetlana V. Kalinicheva,
  • Rosaliya N. Ivanova,
  • Alexandra N. Petrova and
  • Varvara V. Andreeva
  • + 3 authors

10 December 2024

By analyzing the last 50–60 years of climate changes in Arctic and Subarctic Yakutia, we have identified three distinct periods of climate development. The cold (1965–1987), pre-warming (1988–2004), and modern warming (2005–20...

  • Article
  • Open Access
10 Citations
3,023 Views
20 Pages

Effect of Soil Texture on Water and Salt Transport in Freeze—Thaw Soil in the Shallow Groundwater Area

  • Erqing Wang,
  • Junfeng Chen,
  • Lei Liu,
  • Lihong Cui,
  • Jing Xue,
  • Jiameng Ren and
  • Qi Du

16 July 2023

Research on the variation in soil water, heat, and salt in unsaturated zones during the freeze–thaw process has great significance in efficiently utilizing water resources and preventing soil salinization. The freeze–thaw field experiment...

  • Article
  • Open Access
1 Citations
1,240 Views
17 Pages

7 May 2025

Laser deep penetration welding has been widely applied in industrial fields. However, keyhole depth during the welding process significantly affects the service performance of final products. Based on the spectral signals generated in the laser weldi...

  • Article
  • Open Access
13 Citations
4,164 Views
12 Pages

Low Tunnels inside Mediterranean Greenhouses: Effects on Air/Soil Temperature and Humidity

  • Alejandro López-Martínez,
  • Francisco D. Molina-Aiz,
  • María de los Ángeles Moreno-Teruel,
  • Araceli Peña-Fernández,
  • Fátima J. F. Baptista and
  • Diego L. Valera-Martínez

30 September 2021

The main objective of this work was to analyze the microclimate generated inside a low tunnel (floating row cover) installed in an Almería-type greenhouse. Low tunnels are commonly used in the open field to protect plants against insect attack and to...

  • Article
  • Open Access
14 Citations
4,536 Views
15 Pages

16 January 2020

In greenhouse energy balance models, the soil thermal parameters are important for evaluating the heat transfer between the greenhouse air and the soil. In this study, the soil thermal diffusivity was estimated from greenhouse soil temperature data u...

  • Article
  • Open Access
2 Citations
2,019 Views
15 Pages

25 September 2021

In this study, a spiral groove liquid film vaporization model based on the viscosity–temperature equation, fluid internal friction, saturation temperature, and pressure relationship equation was established. Using a multiphase flow model based on the...

  • Article
  • Open Access
7 Citations
2,583 Views
19 Pages

21 April 2022

This study aimed to determine the atmospheric conditions in which sea-effect snow (SES) and non-SES events occurred in a meso-scale structure. All snow events between 2009 and 2018 were found by examining the aviation reports at two international air...

  • Article
  • Open Access
33 Citations
11,683 Views
13 Pages

14 June 2010

This paper presents an evaluation of an infrared sensor for monitoring the welding pool temperature in a Gas Tungsten Arc Welding (GTAW) process. The purpose of the study is to develop a real time system control. It is known that the arc welding pool...

  • Article
  • Open Access
3 Citations
1,605 Views
14 Pages

Influence of Liner Surface with Parameterized Pit Texture on the Friction Characteristics of Piston Rings

  • Hongyang Zhang,
  • Junzhen Gong,
  • Xiaori Liu,
  • Wen Sun,
  • Ke Sun and
  • Shuzhan Bai

14 March 2024

The arrangement of a pit-shaped surface texture on the surface of a cylinder liner significantly affects reductions in piston ring friction, and the influence of the structural parameters and spatial distribution on piston ring friction power consump...

  • Article
  • Open Access
6 Citations
3,546 Views
18 Pages

8 November 2021

Water temperature serves as a key environmental factor of lakes and the most basic parameter for analyzing the thermal conditions of a water body. Based on the observation and analysis of the water temperature of Qinghuahu Lake in the Heilongjiang Pr...

  • Article
  • Open Access
12 Citations
3,585 Views
14 Pages

Grain stored in silos in the United States of America is generally cooled with an aeration system to limit mold spoilage and insect infestation. Monitoring efficacy of aeration and real-time conditions of stored grain is generally done using temperat...

  • Article
  • Open Access
2,276 Views
16 Pages

29 October 2022

In this paper, using automated optical inspection equipment and a thermal imager, the position and the temperature of the heat source or measured object can effectively be grasped. The high-resolution depth camera is with the stereo vision distance m...

  • Article
  • Open Access
11 Citations
3,885 Views
14 Pages

11 February 2019

Temperature history and hardening depth are experimentally characterized in the rotational laser hardening process for an AISI 1045 medium carbon steel specimen. A three-dimensional finite element model is proposed to predict the temperature field di...

  • Article
  • Open Access
4 Citations
3,914 Views
16 Pages

17 December 2020

Understanding how physical characteristics of polar firn vary with depth assists in interpreting paleoclimate records and predicting meltwater infiltration and storage in the firn column. Spatial heterogeneities in firn structure arise from variable...

  • Article
  • Open Access
397 Views
22 Pages

8 November 2025

This article presents an original, multi-depth soil-temperature monitoring system based on TMP117 digital sensors designed for deployment at several depths. The objective was to evaluate the system’s accuracy and applicability for building-ener...

  • Article
  • Open Access
12 Citations
3,261 Views
26 Pages

Influence of Temperature and Moisture Content on Pavement Bearing Capacity with Improved Subgrade

  • Audrius Vaitkus,
  • Laura Žalimienė,
  • Jurgita Židanavičiūtė and
  • Daiva Žilionienė

21 November 2019

Environmental conditions (temperature, moisture and the intensity of the sun) influence variation in asphalt pavement strength during the year. Lithuania is situated in a zone by average warm summers and average cold winters, and the most important c...

  • Article
  • Open Access
25 Citations
5,129 Views
26 Pages

Temporal and Spatial Variations of Secchi Depth and Diffuse Attenuation Coefficient from Sentinel-2 MSI over a Large Reservoir

  • Gonçalo Rodrigues,
  • Miguel Potes,
  • Maria João Costa,
  • Maria Helena Novais,
  • Alexandra Marchã Penha,
  • Rui Salgado and
  • Maria Manuela Morais

28 February 2020

The Alqueva reservoir (South of Portugal) in the Guadiana river basin constitutes the most important water resource in southern Portugal for domestic and agricultural consumption. We present a methodology developed to characterize spatial and tempora...

  • Feature Paper
  • Article
  • Open Access
7 Citations
2,305 Views
15 Pages

An Augmented Model of Rutting Data Based on Radial Basis Neural Network

  • Zhuoxuan Li,
  • Meng Tao,
  • Jinde Cao,
  • Xinli Shi,
  • Tao Ma and
  • Wei Huang

23 December 2022

The rutting depth is an important index to evaluate the damage degree of the pavement. Therefore, establishing an accurate rutting depth prediction model can guide pavement design and provide the necessary basis for pavement maintenance. However, the...

  • Article
  • Open Access
10 Citations
4,096 Views
9 Pages

Direct Measurement of Heat Produced during Drilling for Implant Site Preparation

  • Yongsoo Kim,
  • Sungwon Ju,
  • MinJu Kim,
  • Minsu Park,
  • Sangho Jun and
  • Jinsoo Ahn

9 May 2019

The aim of this study was to directly measure the temperature of the drill during implant site preparation. The measured temperature was compared to that previously reported inside the bone. The temperature change of the drill was measured using a th...

  • Article
  • Open Access
40 Citations
5,739 Views
23 Pages

25 March 2021

In this study, a machine learning algorithm was introduced to fuse gridded snow depth datasets. The input variables of the machine learning method included geolocation (latitude and longitude), topographic data (elevation), gridded snow depth dataset...

  • Article
  • Open Access
5 Citations
3,385 Views
15 Pages

5 March 2020

This study characterized vertical one-dimensional (1-D) flux rates in the top 150 cm of the streambed and explored the relationship between stage and 1-D vertical flux rates in a low-gradient stream. Six multi-level samplers were installed along a 25...

  • Article
  • Open Access
2,361 Views
25 Pages

20 May 2023

The recently discovered 460 Gaodi porphyry Mo-Cu deposit is a sub-economic deposit characterized by low Mo-Cu grades, dispersed mineralization, and separated Mo- and Cu-ore bodies. This study aims to elucidate the factors underlying this type of sub-...

  • Article
  • Open Access
1,417 Views
15 Pages

A Method for Estimating Source Depth Based on the Adjacent Mode Group Acoustic Pressure Field

  • Jian Li,
  • Rong Li,
  • Zexi Wang,
  • Zhen Zhang,
  • Mingyu Gu and
  • Guangjie Han

19 October 2023

In order to effectively estimate the depth of the source in the acoustic pressure field, this study investigated the relationship between the distribution of acoustic pressure fields in different adjacent mode groups and the depth of the source in sh...

  • Article
  • Open Access
1,375 Views
18 Pages

8 February 2025

This study proposes improving the process of the vertical diffusion of temperature in numerical models to enhance the accuracy of sea surface temperature (SST) simulation. SST tends to be underestimated in the coastal and tidal flat regions, such as...

  • Article
  • Open Access
1,180 Views
13 Pages

Elemental Composition and Morphometry of Rhyssoplax olivacea (Polyplacophora): Part II—Intraspecific Variation

  • Konstantinos Voulgaris,
  • Anastasios Varkoulis,
  • Thomas Mygdalias,
  • Stefanos Zaoutsos and
  • Dimitris Vafidis

5 December 2024

Rhyssoplax olivacea is a common mediterranean chiton that exhibits great geographic distribution characterized by variability in its abiotic parameters. Using morphometric measurements of the valves and radula, as well as the element composition of i...

  • Article
  • Open Access
3 Citations
3,135 Views
18 Pages

Increasing Snow–Soil Interface Temperature in Farmland of Northeast China from 1979 to 2018

  • Xiuxue Chen,
  • Xiaofeng Li,
  • Lingjia Gu,
  • Xingming Zheng,
  • Guangrui Wang and
  • Lei Li

14 September 2021

The presence of seasonal snow cover in the cold season can significantly affect the thermal conditions of the ground. Understanding the change of the snow–soil interface temperature (TSS) and its environmental impact factors is essential for predicti...

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