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28,267 Results Found

  • Article
  • Open Access
17 Citations
9,490 Views
28 Pages

The Effect of the Presence of Very Cohesive Geldart C Ultra-Fine Particles on the Fluidization of Geldart A Fine Particle Beds

  • Abbas Kamranian Marnani,
  • Andreas Bück,
  • Sergiy Antonyuk,
  • Berend van Wachem,
  • Dominique Thévenin and
  • Jürgen Tomas

11 January 2019

The effect of the presence of ultra-fines (d < 10 μm) on the fluidization of a bed containing fine particles (d < 100 μm), is the subject of this paper. Practically, it can happen due to breakage or surface abrasion of the fine particles...

  • Perspective
  • Open Access
20 Citations
15,852 Views
20 Pages

LLM Fine-Tuning: Concepts, Opportunities, and Challenges

  • Xiao-Kun Wu,
  • Min Chen,
  • Wanyi Li,
  • Rui Wang,
  • Limeng Lu,
  • Jia Liu,
  • Kai Hwang,
  • Yixue Hao,
  • Yanru Pan and
  • Fei-Yue Wang
  • + 9 authors

As a foundation of large language models, fine-tuning drives rapid progress, broad applicability, and profound impacts on human–AI collaboration, surpassing earlier technological advancements. This paper provides a comprehensive overview of lar...

  • Article
  • Open Access
2 Citations
3,227 Views
22 Pages

A Fine-Grained Car Recognition Method Based on a Lightweight Attention Network and Regularized Fine-Tuning

  • Cheng Zhang,
  • Qiaochu Li,
  • Chang Liu,
  • Yi Zhang,
  • Ding Zhao,
  • Chao Ji and
  • Jin Wang

Car fine recognition is a typical scenario for fine-grained image classification, which has great research and application value in both civilian and military fields. However, current research on fine-grained classification is often limited to improv...

  • Article
  • Open Access
2 Citations
2,109 Views
12 Pages

Twin Boundary Induced Grain Coarsening in Friction Stir Welding of Fine- and Ultra-Fine-Grained Commercially Pure Titanium Base Metals

  • Jae-Deuk Kim,
  • Siva Prasad Murugan,
  • Seong-Woo Choi,
  • Yutaka S. Sato,
  • Jae-Keun Hong,
  • Changwook Ji,
  • Chang-Sub Kwak and
  • Yeong-Do Park

16 August 2022

The mechanical properties of commercially pure titanium can further be improved through the grain refinement processes; however, welding fine-grained materials is challenging due to the grain coarsening in the weld area and hence the weakening of the...

  • Article
  • Open Access
25 Citations
4,981 Views
14 Pages

Fine-Root Responses of Populus tomentosa Forests to Stand Density

  • Huijuan Bo,
  • Chunyan Wen,
  • Lianjun Song,
  • Yatao Yue and
  • Lishui Nie

13 September 2018

Stand density directly affects the distribution of ecological factors such as light, heat, and water in forest communities and changes the diversity and structure of undergrowth species, thereby affecting soil health. Fine roots can provide water and...

  • Article
  • Open Access
4 Citations
2,605 Views
18 Pages

Reverse Column Flotation of Ultrafine Magnetite Mixture with Fine Glass Beads Enhanced by Fine Bubbles

  • N. N. Rulyov,
  • L. O. Filippov,
  • D. Y. Sadovskyi,
  • V. V. Lukianova and
  • I. V. Filippova

5 May 2022

Magnetite ores are among the most important sources of iron, which is in high demand in the global economy. Metallurgical properties of the magnetite concentrate significantly depend on impurities of silicon- and aluminum-bearing minerals. These impu...

  • Article
  • Open Access
917 Views
16 Pages

Screening of Protein Related to Wool Development and Fineness in Gansu Alpine Fine-Wool Sheep

  • Zhaohua He,
  • Liming Tian,
  • Guan Wang,
  • Fangfang Zhao,
  • Pengfei Zhao,
  • Shuhong Zhang,
  • Shaobin Li and
  • Guangli Yang

2 September 2025

Fiber fineness is a critical determinant of wool quality and is of great significance in enhancing the overall quality of wool. The aim of this research was to pinpoint the key proteins that participate in the regulation of wool fineness. To achieve...

  • Review
  • Open Access
2 Citations
3,317 Views
15 Pages

1 August 2024

The subgrade serves as the foundation of road construction, typically involving a significant amount of earthwork during its establishment. However, in coastal and desert areas, soil sources are often scarce. Local soil extraction significantly damag...

  • Article
  • Open Access
4 Citations
6,674 Views
26 Pages

COVID-19 Pandemic and Lockdown Fine Optimality

  • Spyros Niavis,
  • Dimitris Kallioras,
  • George Vlontzos and
  • Marie-Noelle Duquenne

The first stream of economic studies on public policy responses during the COVID-19 pandemic focused on the stringency, the effectiveness, and the impact of the countries’ interventions and paid rather little attention to the corresponding means used...

  • Article
  • Open Access
3 Citations
2,003 Views
13 Pages

Worsening wildfire seasons in recent years are reversing decadal progress on the reduction of harmful air pollutants in the US, particularly in Western states. Measurements of the contributions of wildfire smoke to ambient air pollutants, such as fin...

  • Article
  • Open Access
3 Citations
7,446 Views
14 Pages

17 January 2022

This article explores the role of glass as a medium in the fine arts rather than as a craft form. It includes a short history of glass as an art medium, the development of glass technologies and their application in the field of fine art. It reflects...

  • Article
  • Open Access
2 Citations
1,888 Views
16 Pages

Influence of Fine Content and Mean Diameter Ratio on the Minimum and Maximum Void Ratios of Sand–Fine Mixtures: A Discrete Element Method Study

  • Huaqiao Zhong,
  • Zhehao Zhu,
  • Jiajin Zhao,
  • Lanyi Wei,
  • Yanyan Zhang,
  • Jiayu Li,
  • Jiajun Wang and
  • Wenguo Yao

11 September 2024

As urbanization accelerates and surface space becomes increasingly scarce, the development and utilization of urban underground space have become more critical. The sand–fine mixture soils commonly found in river-adjacent and coastal areas pose...

  • Article
  • Open Access
11 Citations
4,724 Views
9 Pages

Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) for pancreatic tumors and subepithelial lesions (SEL) of the gastrointestinal tract are effective for histological diagnosis. There are also reports that tissue sampling is possible with a...

  • Article
  • Open Access
17 Citations
2,788 Views
13 Pages

Influence of Microbubble on Fine Wolframite Flotation

  • Penggang Wei,
  • Liuyi Ren,
  • Yimin Zhang and
  • Shenxu Bao

30 September 2021

The recovery of fine wolframite is low when using traditional flotation that does not use a microbubble. In this study, a microbubble was introduced into the fine wolframite flotation system; −20 μm wolframite was used as an experiment sample and oct...

  • Article
  • Open Access
16 Citations
7,130 Views
24 Pages

On the Dilatancy of Fine-Grained Soils

  • Merita Tafili,
  • Carlos Grandas Tavera,
  • Theodoros Triantafyllidis and
  • Torsten Wichtmann

31 August 2021

A new evaluation method for the dilatancy of fine-grained soils based on monotonic and cyclic undrained triaxial tests has been established using two elasticity approaches: isotropic and transverse isotropic hypoelasticity. The evaluation of two clay...

  • Article
  • Open Access
3 Citations
1,694 Views
24 Pages

Lane Attribute Classification Based on Fine-Grained Description

  • Zhonghe He,
  • Pengfei Gong,
  • Hongcheng Ye and
  • Zizheng Gan

24 July 2024

As an indispensable part of the vehicle environment perception task, road traffic marking detection plays a vital role in correctly understanding the current traffic situation. However, the existing traffic marking detection algorithms still have som...

  • Article
  • Open Access
4 Citations
2,598 Views
13 Pages

Effect on Fine Particles Output Characteristics of Ceramic Ball Grinding

  • Jiaqi Tong,
  • Caibin Wu,
  • Yihan Wang,
  • Jingkun Tian,
  • Zheyang Li,
  • Feng Xie,
  • Xin Yao and
  • Guisheng Zeng

7 November 2023

Steel balls as traditional grinding media are prone to excessive fines generation and high energy consumption. Therefore, in light of this problem, the authors investigated another media—ceramic balls based on the output characteristics of fine...

  • Feature Paper
  • Article
  • Open Access
8 Citations
3,295 Views
27 Pages

Surface Chemistry Tuning Solutions for Flotation of Fine Particles

  • Stoyan I. Karakashev,
  • Nikolay A. Grozev,
  • Kristina Mircheva,
  • Seher Ata,
  • Ghislain Bournival,
  • Svetlana Hristova and
  • Orhan Ozdemir

18 July 2023

This paper analyses the basic obstacles preventing the fine particles from floating and suggests solutions for the wetting zone between the bubble and the particle during their collision. It has been shown in our recent paper that the basic problem o...

  • Article
  • Open Access
2 Citations
2,952 Views
17 Pages

Effects of Tree Species Diversity on Fine Root Morphological Characteristics, Productivity and Turnover Rates

  • Zhibao Wang,
  • Yongli Cai,
  • Jing Liang,
  • Qicheng Zhong,
  • Hong Jiang,
  • Xinghui Lu,
  • Xiangbin Gao,
  • Shouchao Yu and
  • Xiaojian Dai

21 October 2022

Fine roots (φ ≤ 2 mm) play an important role in the process of material and nutrient cycling in forest ecosystems, but the effect of tree species diversity on the functional characteristics of fine roots is unclear. In this study, 1−7 su...

  • Article
  • Open Access
3 Citations
3,339 Views
15 Pages

The Role of Visual Performance in Fine Motor Skills

  • Pilar Granados-Delgado,
  • Miriam Casares-López,
  • Francesco Martino,
  • Rosario González Anera and
  • José Juan Castro-Torres

23 October 2024

The aim of this study was to analyse the relationship between fine motor skills (FMSs) and visual performance. Thirty young participants with normal binocular vision performed five fine motor tasks: Purdue, Grooved, and O’Connor pegboards, a ne...

  • Article
  • Open Access
6 Citations
2,974 Views
13 Pages

In China, there are currently different degrees of arbitrariness in setting environmental administrative fines, and in many areas the faults are not equal to the penalties. To construct a more reasonable and feasible environmental punishment strategy...

  • Article
  • Open Access
1 Citations
3,055 Views
17 Pages

FineTea: A Novel Fine-Grained Action Recognition Video Dataset for Tea Ceremony Actions

  • Changwei Ouyang,
  • Yun Yi,
  • Hanli Wang,
  • Jin Zhou and
  • Tao Tian

31 August 2024

Methods based on deep learning have achieved great success in the field of video action recognition. When these methods are applied to real-world scenarios that require fine-grained analysis of actions, such as being tested on a tea ceremony, limitat...

  • Article
  • Open Access
16 Citations
6,196 Views
16 Pages

Gross and fine motor competence have a close relationship during development and are shown to correlate to some extent. However, the study of the interaction between these domains still requires further insights. In this study, we investigated the de...

  • Article
  • Open Access
164 Views
19 Pages

Supervised fine-tuning is key for model alignment, but its mechanisms are debated, with conflicting evidence supporting either a superficial alignment hypothesis or significant task improvements. This paper examines supervised fine-tuning’s imp...

  • Article
  • Open Access
13 Citations
2,882 Views
18 Pages

Response of Fine-Root Traits of Populus tomentosa to Drought in Shallow and Deep Soil

  • Jianbiao Tan,
  • Weichen Yu,
  • Yang Liu,
  • Youzheng Guo,
  • Nan Liu,
  • Haiman Fu,
  • Nan Di,
  • Jie Duan,
  • Ximeng Li and
  • Benye Xi

4 May 2023

Understanding the response characteristics of fine roots to soil drought of different degrees is essential for revealing the ecological adaptability of trees to different water environments and diverse plant resource absorption strategies. This study...

  • Article
  • Open Access
17 Citations
3,478 Views
15 Pages

25 October 2019

Research Highlights: A detailed picture of the seasonality in fine root biomass (FRB), necromass (FRN), and the biomass/necromass ratio (FRBN) throughout the whole year is crucial to uncover profound effects of long-term environmental changes on fine...

  • Article
  • Open Access
12 Citations
5,772 Views
17 Pages

Attention Bilinear Pooling for Fine-Grained Classification

  • Wenqian Wang,
  • Jun Zhang and
  • Fenglei Wang

9 August 2019

Fine-grained image classification is a challenging problem because of its large intra-class differences and low inter-class variance. Bilinear pooling based models have been shown to be effective at fine-grained classification, while most previous ap...

  • Article
  • Open Access
24 Citations
7,702 Views
12 Pages

Effects of Fine-Mesh Exclusion Netting on Pests of Blackberry

  • Ryan Kuesel,
  • Delia Scott Hicks,
  • Kendall Archer,
  • Amber Sciligo,
  • Ricardo Bessin and
  • David Gonthier

14 August 2019

Fine-mesh exclusion netting is a potential alternative to organic and conventional insecticide application to control numerous pests of fruit crops. We tested whether fine-mesh exclusion netting would reduce pest abundance and increase marketable yie...

  • Article
  • Open Access
12 Citations
2,802 Views
17 Pages

20 September 2024

Conventional altimetry has greatly advanced our understanding of mesoscale eddies but falls short in studying fine-scale eddies (<150 km). The newly launched Surface Water and Ocean Topography (SWOT) altimeter, however, with its unprecedented high...

  • Article
  • Open Access
5 Citations
4,160 Views
16 Pages

Exploring Misclassification Information for Fine-Grained Image Classification

  • Da-Han Wang,
  • Wei Zhou,
  • Jianmin Li,
  • Yun Wu and
  • Shunzhi Zhu

18 June 2021

Fine-grained image classification is a hot topic that has been widely studied recently. Many fine-grained image classification methods ignore misclassification information, which is important to improve classification accuracy. To make use of misclas...

  • Article
  • Open Access
10 Citations
4,595 Views
20 Pages

The Effect of Very Cohesive Ultra-Fine Particles in Mixtures on Compression, Consolidation, and Fluidization

  • Abbas Kamranian Marnani,
  • Andreas Bück,
  • Sergiy Antonyuk,
  • Berend van Wachem,
  • Dominique Thévenin and
  • Jürgen Tomas

10 July 2019

This paper focuses on the effect of ultra-fine ( d < 10 µm) powders in mixtures with fine ( d < 100 µm) bulk material on compression processes and also evaluates the re-fluidization behavior of the compressed bed (history...

  • Article
  • Open Access
104 Citations
15,298 Views
15 Pages

18 May 2015

The practical use of recycled concrete aggregate produced by crushing concrete waste reduces the consumption of natural aggregate and the amount of concrete waste that ends up in landfills. This study investigated two methods used in the production o...

  • Article
  • Open Access
4 Citations
3,634 Views
21 Pages

A Model-Downscaling Method for Fine-Resolution LAI Estimation

  • Jingyu Zhang,
  • Jindi Wang,
  • Rui Sun,
  • Hongmin Zhou and
  • Helin Zhang

18 December 2020

The leaf area index (LAI) is a critical parameter for characterizing the structure and function of vegetation in ecosystems. Currently, operational LAI products always have coarse spatial resolution, and fine-resolution LAI maps are urgently needed f...

  • Article
  • Open Access
14 Citations
8,466 Views
17 Pages

11 December 2013

Fine registration of point clouds plays an important role in data analysis in Terrestrial Laser Scanning (TLS). This work proposes a block-to-point fine registration approach to correct the errors of point clouds from TLS and of geodetic networks obs...

  • Article
  • Open Access
1 Citations
3,516 Views
17 Pages

14 October 2021

The criminal justice system routinely imposes financial sanctions on probation clients. These fines, fees, and restitution debts often amount to more than what many clients can reasonably afford to pay. Until recently, Massachusetts courts have incar...

  • Review
  • Open Access
3 Citations
2,757 Views
11 Pages

Background: Particulate matter and urban air pollution affect the human body and can lead to death. Epidemiological studies should consider exposure to pollutants and the diverse responses of individuals, depending on their sensitivity to the polluta...

  • Article
  • Open Access
17 Citations
6,434 Views
22 Pages

30 January 2019

Aggregates are essential in the production of composite building materials and their properties and characteristics influence the performance of these materials in use. Nevertheless, despite the existence of several standardized and other methods for...

  • Review
  • Open Access
1,347 Views
41 Pages

30 November 2025

This article conducts a systematic review on the fine-grained interpretation of remote sensing images, delving deeply into its background, current situation, datasets, methodology, and future trends, aiming to provide a comprehensive reference framew...

  • Article
  • Open Access
10 Citations
4,390 Views
11 Pages

Use of Sewage Sludge for the Substitution of Fine Aggregates for Concrete

  • Maria C. A. Feitosa,
  • Sílvio R. M. Ferreira,
  • João M. P. Q. Delgado,
  • Fernando A. N. Silva,
  • Joaquim T. R. Oliveira,
  • Pedro E. S. Oliveira and
  • António C. Azevedo

10 January 2023

This work analyzes the use of sewage sludge, generated in wastewater treatment plants, as an alternative for small aggregate to be used in concrete. Concrete cylindrical specimens with height h = 20 cm and diameter D = 10 cm were prepared using diffe...

  • Article
  • Open Access
14 Citations
4,748 Views
15 Pages

30 August 2022

In this study, locally produced recycled fine aggregate from concrete demolition waste was investigated for potential replacement of sand in new concrete mixes. Tests for the waste material included visual examination, chemical composition, grain siz...

  • Article
  • Open Access
11 Citations
3,774 Views
10 Pages

Endoscopic Ultrasound-Guided Fine-Needle Biopsy versus Fine-Needle Aspiration in the Diagnosis of Focal Liver Lesions: Prospective Head-to-Head Comparison

  • Marcel Gheorghiu,
  • Andrada Seicean,
  • Sorana D. Bolboacă,
  • Ioana Rusu,
  • Radu Seicean,
  • Cristina Pojoga,
  • Ofelia Moșteanu and
  • Zeno Sparchez

13 September 2022

Endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) or fine-needle aspiration (EUS-FNA) from focal liver lesions are indicated in selected cases, but there has been no previous comparison of needle types of the same size. The aim of our study w...

  • Article
  • Open Access
5 Citations
3,611 Views
12 Pages

Comparison of Fine-Needle Biopsy (FNB) versus Fine-Needle Aspiration (FNA) Combined with Flow Cytometry in the Diagnosis of Deep-Seated Lymphoma

  • Yilei Yang,
  • Aruna,
  • Bin Cheng,
  • Dingkun Xiong,
  • Dong Kuang,
  • Haochen Cui,
  • Si Xiong,
  • Xia Mao,
  • Yunlu Feng and
  • Yuchong Zhao

28 August 2023

Evidence comparing ultrasound endoscopy-guided fine-needle biopsy (EUS-FNB) with EUS-guided fine-needle aspiration (EUS-FNA) in deep-seated lymphoma tissue sampling is insufficient. This study aims to evaluate the diagnostic efficacy of immunohistoch...

  • Article
  • Open Access
6 Citations
2,997 Views
20 Pages

Effects of Excess Nitrogen (N) on Fine Root Growth in Tropical Forests of Contrasting N Status

  • Feifei Zhu,
  • Frank S. Gilliam,
  • Jan Mulder,
  • Muneoki Yoh,
  • Jiangming Mo and
  • Xiankai Lu

19 August 2022

Elevated nitrogen (N) deposition may further acidify soils in tropical forests. Yet, we have limited evidence on this prediction and it remained unclear how this would affect fine root growth therein. Here, we report responses of fine root biomass, v...

  • Article
  • Open Access
2 Citations
2,395 Views
20 Pages

Stability Condition of Methane Hydrate in Fine-Grained Sediment

  • Di Lu,
  • Qin Tang,
  • Dehuan Yang,
  • Rongtao Yan,
  • Yun Chen and
  • Shuai Tao

Stability condition is of critical importance for methane hydrate exploitation, transportation, and reserves. This study measured the stability conditions of methane hydrate in fine-grained sediment with different dry densities (ρd = 1.40, 1.50 a...

  • Article
  • Open Access
586 Views
13 Pages

Research on the Settling and Critical Carrying Velocity of Coal Fine in CBM Wells

  • Xiaohui Xu,
  • Ming Chi,
  • Xiangyan Meng,
  • Jiping Deng,
  • Jiang Liu,
  • Guoqing Han and
  • Siyu Lai

18 July 2025

The continuous deposition of coal fine in the well can lead to complex problems, such as pump blockage and reduced capacity. The traditional critical velocity model applicable to rigid spherical particles, such as sand grains and glass beads, finds i...

  • Article
  • Open Access
939 Views
17 Pages

HFGAD: Hierarchical Fine-Grained Attention Decoder for Gaze Estimation

  • Shaojie Huang,
  • Tianzhong Wang,
  • Weiquan Liu,
  • Yingchao Piao,
  • Jinhe Su,
  • Guorong Cai and
  • Huilin Xu

24 August 2025

Gaze estimation is a cornerstone of applications such as human–computer interaction and behavioral analysis, e.g., for intelligent transport systems. Nevertheless, existing methods predominantly rely on coarse-grained features from deep layers...

  • Article
  • Open Access
8 Citations
4,127 Views
12 Pages

17 May 2022

Fine-grained image classification is a challenging computer visual task due to the small interclass variations and large intra-class variations. Extracting expressive feature representation is an effective way to improve the accuracy of fine-grained...

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