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2,349 Results Found

  • Article
  • Open Access
7 Citations
2,462 Views
19 Pages

8 October 2022

In order to promote the efficient and coordinated utilization of counties’ territorial space in Hunan Province, this paper identifies the state of high-quality utilization of territorial space based on the perspective of spatial equilibrium fro...

  • Article
  • Open Access
10 Citations
2,926 Views
12 Pages

Broadband and Multi-Cylinder-Based Triboelectric Nanogenerators for Mechanical Energy Harvesting with High Space Utilization

  • Xu Chen,
  • Bao Cao,
  • Chao Yang,
  • Haonan Zhang,
  • Lin Fang,
  • Chen Chen,
  • Zixun Wang,
  • Wen He and
  • Peihong Wang

12 April 2023

The development and utilization of new energy sources is an effective means of addressing the limits of traditional fossil energy resources and the problem of environmental pollution. Triboelectric nanogenerators (TENG) show great potential for appli...

  • Article
  • Open Access
116 Views
15 Pages

High-Energy Detonation Based Lunar Regolith Simulation for Resource Utilization

  • Junyue Tang,
  • Antong Zhao,
  • Shengyuan Jiang,
  • Yang Li,
  • Yu Li,
  • Yi Yang,
  • Zongquan Deng,
  • Xi Wang,
  • Xiangrun Zhao and
  • Tifei Han

22 January 2026

As international lunar exploration shifts from mainly understanding the Moon to equally prioritizing its utilization, the requirement for highly similar lunar regolith simulants has grown. Current simulants, produced mainly by mechanical crushing and...

  • Article
  • Open Access
930 Views
12 Pages

13 May 2025

Wave energy is a widely distributed, abundant, and clean renewable energy source with tremendous potential for development. This study presents a multi-unit coupled motion hybrid generator (MCM-HG) based on a pendulum structure for harvesting low-fre...

  • Article
  • Open Access
4 Citations
2,433 Views
14 Pages

Measuring the accessibility of each traffic zone to high-speed railway stations can evaluate the ease of the transportation hub in the transportation system. The utility-based model, which captures individual travel behavior and subjective perception...

  • Article
  • Open Access
2 Citations
1,922 Views
16 Pages

A High-Utility Differentially Private Mechanism for Space Information Networks

  • Ming Zhuo,
  • Wen Huang,
  • Leyuan Liu,
  • Shijie Zhou and
  • Zhiwen Tian

18 November 2022

Nowadays, Space Information Networks represented by the satellite internet are developing rapidly. For example, the Starlink of SpaceX plans to provide network access services worldwide and has drawn much attention. To operate and maintain Space Info...

  • Article
  • Open Access
21 Citations
4,353 Views
21 Pages

17 March 2022

Space utilization and climate change are related to human survival and development. Identifying the relationship between development and conservation is the foundation of sustainable development. We used the kernel density curve, spatial analysis, an...

  • Article
  • Open Access
13 Citations
3,142 Views
17 Pages

3 March 2023

An important recent issue in research is the effective protection and rational utilization of cultural heritage. In particular, the regional protection and utilization network of heritage space is the overall requirement for promoting cultural protec...

  • Article
  • Open Access
4 Citations
2,484 Views
24 Pages

Space Target Tracking with the HRRP Characteristic-Aided Filter via Space-Based Radar

  • Shuyu Zheng,
  • Libing Jiang,
  • Qingwei Yang,
  • Yingjian Zhao and
  • Zhuang Wang

3 October 2023

Approaching space target tracking is a typical and challenging mission in the space situational awareness (SSA) field. As the space-based radar is able to monitor the space targets of interest full-weather all-time, the space-based radar system is ut...

  • Review
  • Open Access
5 Citations
4,551 Views
22 Pages

22 October 2024

This study offers a thorough comparative analysis of space efficiency in skyscrapers across three distinct forms: prismatic, tapered, and free. By examining case studies from each form category, this research investigates how architectural and struct...

  • Article
  • Open Access
22 Citations
4,954 Views
30 Pages

26 February 2019

The stereo integration of subway transportation with urban functions has promoted the transformation of urban space via extensive two-dimensional plans to intensive three-dimensional development. As sustainable development aspect, it has posed new ch...

  • Communication
  • Open Access
4 Citations
2,292 Views
8 Pages

18 January 2023

Previous studies on the removal of airborne particulate matter (PM) by plants have mostly focused on the individual scale, hence there is a lack of systematic understanding of how to improve the PM removal effect of green spaces (GS) at multi-scales....

  • Article
  • Open Access
7 Citations
2,170 Views
23 Pages

5 August 2024

The rational allocation of land resources is crucial to ensuring human well-being, livelihood, and survival. The study of Production-Living-Ecological Space (PLES) provides new perspectives on land resource allocation. However, few studies have asses...

  • Article
  • Open Access
1,270 Views
25 Pages

A Study on the Living Behavior and Space Usage Preference of Residents in Traditional Huizhou Dwellings

  • Xiang Gao,
  • Zao Li,
  • Qiang Wang,
  • Geng Cheng,
  • Mingfei Gao and
  • Maosheng Ye

28 April 2025

This study explores the challenges faced by traditional dwellings amid modernization and urbanization, with a particular focus on Huizhou dwellings, which struggle with issues such as inefficient space use and suboptimal spatial quality. This study e...

  • Article
  • Open Access
5 Citations
1,382 Views
31 Pages

17 February 2025

High-efficiency itemset mining has recently emerged as a new problem in itemset mining. An itemset is classified as a high-efficiency itemset if its utility-to-investment ratio meets or exceeds a specified efficiency threshold. The goal is to discove...

  • Article
  • Open Access
12 Citations
4,142 Views
29 Pages

1 September 2022

Scientific understanding of the evolution law of territorial space patterns and the ability to reveal the formation mechanism hold great significance for the sustainable utilization of territorial resources and the high-quality green development of t...

  • Article
  • Open Access
3 Citations
2,317 Views
12 Pages

11 May 2023

The development of integrated circuits has increased the size of chip interconnects, which has brought challenges to interconnect design in chip packages. The closer the spacing between interconnects, the higher the space utilization, which can cause...

  • Article
  • Open Access
15 Citations
4,335 Views
24 Pages

26 February 2024

The utilization of Social Media Data (SMD) from location-based services offers a wealth of information to analyze changes in human emotional perception influenced by high-density built environments. This study aimed to examine the impact of high-dens...

  • Article
  • Open Access
1 Citations
1,143 Views
29 Pages

4 March 2025

For the problem of large joint angular velocity and high input in the trajectory planning and control of robots, an explicit-time trajectory tracking for a state-constraint continuum free-floating space robot with smooth joint-path and low input is p...

  • Review
  • Open Access
40 Citations
9,990 Views
20 Pages

6 January 2022

Because of rapid urbanization, traffic problems, and other factors, underground spaces have been used more in the twenty-first century. Large underground spaces are required for underground city, metro, tunnel, mine, industrial and agricultural engin...

  • Article
  • Open Access
3 Citations
1,833 Views
21 Pages

5 November 2024

Green space is not always equitably located in cities, and the attractiveness of green space varies, leaving some residents with easy access to high-quality parks and others with little or no access or access to under-maintained parks. To remedy thes...

  • Article
  • Open Access
3 Citations
3,764 Views
24 Pages

Design, Analysis, and Comparison of Permanent Magnet Claw Pole Motor with Concentrated Winding and Double Stator

  • Chengcheng Liu,
  • Hongming Zhang,
  • Shaoheng Wang,
  • Shiwei Zhang and
  • Youhua Wang

Permanent magnet motors have become an important component of industrial production, transportation, and aerospace due to their advantages of high torque density, high power density, high reliability, low losses, and high efficiency. Permanent magnet...

  • Article
  • Open Access
4 Citations
5,062 Views
18 Pages

28 October 2021

Background: The new demands of the current market including for space should be satisfied by designing modern material flow systems. Designing warehouses using effective material handling equipment significantly supports cost reduction and efficient...

  • Article
  • Open Access
398 Views
34 Pages

27 December 2025

Amid accelerating global high-density urbanization, two pressing challenges have emerged: shrinking green space supplies in built-up areas and growing demand for residents’ emotional well-being. Notably, green spaces’ recreational functio...

  • Article
  • Open Access
892 Views
31 Pages

3 October 2025

With the rapid development of urbanization and tourism in China, increasing attention has been paid to the protection and utilization of historical and cultural heritage, while tourists’ demands for travel experiences have gradually shifted tow...

  • Article
  • Open Access
26 Citations
7,980 Views
18 Pages

CO2 Emissions Induced by Vehicles Cruising for Empty Parking Spaces in an Open Parking Lot

  • Vijay Paidi,
  • Johan Håkansson,
  • Hasan Fleyeh and
  • Roger G. Nyberg

22 March 2022

Parking lots are places of high air pollution as numerous vehicles cruise to find vacant parking places. Open parking lots receive high vehicle traffic, and when limited empty spaces are available it leads to problems, such as congestion, pollution,...

  • Review
  • Open Access
1,389 Views
29 Pages

10 April 2025

This study explores renovation strategies for green spaces in aging residential communities in cold regions, with a particular focus on enhancing carbon sequestration capacity and residents’ well-being. Under the framework of the “dual ca...

  • Communication
  • Open Access
6 Citations
4,493 Views
11 Pages

28 September 2021

We report the design of a high-efficiency spectral-domain spectrometer with cylindrical optics for line scanning optical coherence tomography (OCT). The spectral nonlinearity in k space (wavenumber) lowers the depth-dependent signal sensitivity of th...

  • Case Report
  • Open Access
1,942 Views
20 Pages

The western region of Sichuan Province, located in the Hengduan Mountains, is one of China’s most seismically active zones. Due to limited land resources, many villages in western Sichuan Province are situated in mountainous and valley areas, f...

  • Review
  • Open Access
5 Citations
5,687 Views
14 Pages

Cultivation of Vitamin C-Rich Vegetables for Space-Radiation Mitigation

  • Alireza Mortazavi,
  • Helia Yarbaksh,
  • Batool Faegheh Bahaaddini Baigy Zarandi,
  • Reza Yarbakhsh,
  • Fatemeh Ghadimi-Moghaddam,
  • Syed Mohammad Javad Mortazavi,
  • Masoud Haghani,
  • Donya Firoozi and
  • Lembit Sihver

8 March 2024

Space exploration introduces astronauts to challenges, such as space radiation and microgravity. Researchers have investigated vitamin C as a potential radiation mitigator, as well as antioxidants for sustaining astronaut health. Our own studies demo...

  • Article
  • Open Access
3 Citations
1,258 Views
22 Pages

9 December 2024

The coupling coordination degree (CCD) of the production-living-ecological space (PLES) functional index is an indicator of regional sustainable development potential. However, previous studies have failed to reveal the driving mechanisms of the CCD...

  • Article
  • Open Access
3 Citations
2,510 Views
21 Pages

(1) Background: Public space is an important carrier for maintaining the cultural values of a village and the production and living customs of the villagers, but the use rights and boundaries are in an unstable and ambiguous state, and it is not a co...

  • Article
  • Open Access
7 Citations
2,368 Views
19 Pages

A Multi-Satellite Space Environment Risk Prediction and Real-Time Warning System for Satellite Safety Management

  • Ning Kang,
  • Liguo Zhang,
  • Weiguo Zong,
  • Pan Huang,
  • Yuqiang Zhang,
  • Chen Zhou,
  • Jian Qiao and
  • Bingsen Xue

20 May 2024

In response to the need for a space security situation assessment during orbit, the multi-satellite space environmental risk prediction and early warning system is based on the detection results of the space weather payload of the Fengyun 4A and 4B s...

  • Article
  • Open Access
2 Citations
3,534 Views
10 Pages

Safe spaces are increasingly utilized to reduce alcohol-related harm, violence, crime and improve public safety in nightlife settings. This study aimed to determine the impact and return on investment of the Take Kare Safe Space (TKSS) program—a harm...

  • Article
  • Open Access
1,143 Views
14 Pages

Planting patterns and irrigation amounts are key factors affecting maize yield. This study adopted a two-factor experimental design, with planting pattern as the main plot and irrigation amount as the subplot, to investigate the effects of irrigation...

  • Article
  • Open Access
4 Citations
2,391 Views
18 Pages

28 September 2022

Deep space exploration navigation requires high accuracy of the Doppler measurement, which is equivalent to a frequency estimation problem. Because of the fence effect and spectrum leakage, the frequency estimation performances, which is based on the...

  • Article
  • Open Access
8 Citations
3,709 Views
27 Pages

17 February 2025

The advent of the New Space Era has significantly accelerated the development of space equipment systems using commercial off-the-shelf components. Field Programmable Gate Arrays are increasingly favored for their ability to be easily modified, which...

  • Article
  • Open Access
3 Citations
2,307 Views
18 Pages

Machine Learning Applications and Uncertainty Quantification Analysis for Reflood Tests

  • Nguyen Huu Tiep,
  • Kyung-Doo Kim,
  • Hae-Yong Jeong,
  • Nguyen Xuan-Mung,
  • Van-Khanh Hoang,
  • Nguyen Ngoc Anh and
  • Mai The Vu

29 December 2023

The reflooding phase, a crucial recovery process after a loss of coolant accident (LOCA) in reactors, involves cooling overheated fuel rods with subcooled water. Its complex nature, notably in its flow regime and heat transfer, makes prediction chall...

  • Article
  • Open Access
6 Citations
2,301 Views
35 Pages

8 January 2025

In recent years, rapid economic development, increasing human activities, and global climate change have led to escalating demands for land across production, residential, and ecological domains. This surge has heightened land use conflicts, signific...

  • Article
  • Open Access
4 Citations
1,302 Views
28 Pages

Suitability Evaluation of Underground Space Development by Considering Socio-Economic Factors—An Empirical Study from Longgang Region of China

  • Wenrong Ye,
  • Ji Huang,
  • Pengfei Xu,
  • Jing Yuan,
  • Li Zeng,
  • Yuzhi Zhang,
  • Yiming Wang,
  • Shaokai Wang,
  • Xiongchao Xu and
  • Yuhua Zhang
  • + 1 author

21 March 2025

Underground space is considered a critical urban resource that can significantly promote sustainable development under rational planning. This study, taking the Longgang region in SE China as an example, comprehensively considers the dual influences...

  • Article
  • Open Access
9 Citations
1,963 Views
22 Pages

26 August 2024

In the context of increasing global energy shortages and climate change, the human living environment, as a crucial component of residents’ daily lives, has garnered growing attention from the academic community. Research on residential environ...

  • Article
  • Open Access
29 Citations
7,422 Views
17 Pages

17 December 2018

The widely applied Importance-Performance Analysis (IPA) provides relatively simple and straightforward techniques to assess how well the attributes of a good or service perform in meeting the expectations of consumers, clients, users, and visitors....

  • Article
  • Open Access
1,267 Views
16 Pages

10 October 2023

Various symmetric framelets and periodic framelets are widely utilized in data analysis due to their resilience to background noise, avoidance of linear phase distortion, and the stability of redundant representation. At present, the number of genera...

  • Article
  • Open Access
12 Citations
4,350 Views
12 Pages

Development of a Rotary Damper Integrated with Magnetorheological Bearings toward Extremely High Torque–Volume Ratio

  • Shengfeng Zhu,
  • Ning Gong,
  • Jian Yang,
  • Shiwu Zhang,
  • Xinglong Gong,
  • Weihua Li and
  • Shuaishuai Sun

9 March 2023

Magnetorheological (MR) technology has provided effective solutions to many engineering bottleneck problems due to its controllable nature. However, designing a rotary MR damper with a high torque–volume ratio is always challenging, especially...

  • Article
  • Open Access
4 Citations
3,924 Views
27 Pages

Towards Lunar In-Situ Resource Utilization Based Subtractive Manufacturing

  • André Seidel,
  • Uwe Teicher,
  • Steffen Ihlenfeldt,
  • Konstantin Sauer,
  • Florian Morczinek,
  • Martin Dix,
  • Rick Niebergall,
  • Bernhard Durschang and
  • Stefan Linke

19 December 2023

In recent years, space agencies, such as the National Aeronautics and Space Administration (NASA) and European Space Agency (ESA), have expanded their research activities in the field of manufacturing in space. These measures serve to reduce limitati...

  • Article
  • Open Access
26 Citations
6,241 Views
23 Pages

13 August 2021

Quantitative securing of green space in already developed cities has many practical limitations due to socio-economic limitations. Currently, South Korea is planning a green network to secure and inject effective green space, but it is difficult to r...

  • Article
  • Open Access
10 Citations
2,395 Views
15 Pages

26 November 2023

Currently, vortex beams are extensively utilized in the information transmission and storage of communication systems due to their additional degree of freedom. However, traditional terahertz metasurfaces only focus on the generation of narrowband vo...

  • Article
  • Open Access
8 Citations
3,020 Views
18 Pages

7 April 2024

Symmetry is an important principle and characteristic that is prevalent in nature and artificial environments. In the three-dimensional packing problem, leveraging the inherent symmetry of goods and the symmetry of the packing space can enhance packi...

  • Article
  • Open Access
17 Citations
4,494 Views
17 Pages

23 August 2023

To address the issues of fuzzy scene details, reduced definition, and poor visibility in images captured under non-uniform lighting conditions, this paper presents an algorithm for effectively enhancing such images. Firstly, an adaptive color balance...

  • Article
  • Open Access
2,296 Views
18 Pages

17 January 2024

Markov chain Monte Carlo (MCMC) stands out as an effective method for tackling Bayesian inverse problems. However, when dealing with computationally expensive forward models and high-dimensional parameter spaces, the challenge of repeated sampling be...

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