Results 41 to 50 of about 1,192,531 (239)

A method for identifying and locating underground personnel in a vehicle

Meikuang Anquan
Most of the existing accurate positioning systems for underground personnel are based on UWB positioning technology and adopt the layout mode of personnel positioning card + positioning substation, which can achieve centimeter-level high-precision ...
Xian CHEN, Shu ZHOU, Rong ZHANG
doaj   +1 more source

Design and application of multi-functional wireless information transmission platform based on 802.11

Gong-kuang zidonghua, 2014
In view of problems of single function and low positioning accuracy existed in underground personnel positioning system, an intrinsic safety and multi-functional wireless information transmission platform based on 802.11n was designed.
LIU Zhigao, DING Qingqing
doaj   +1 more source

What Do We Know About Scope 3 Emissions in Small‐ and Medium‐Sized Enterprises? Mapping Current Knowledge and Advancing a Theory–Practice‐Oriented Framework

Business Strategy and the Environment, EarlyView.
ABSTRACT Although SMEs comprise over 90% of firms globally, research on their engagement with Scope 3 (value‐chain) greenhouse gas emissions remains limited. This PRISMA‐guided systematic review synthesises 49 SME‐relevant studies to develop a theory‐informed, practice‐oriented framework for more credible and sustained Scope 3 engagement.
Chidinma Uchendu, Okechukwu Okorie, Fatemeh Khosravi, Stuart Connop, Hebba Haddad, Mike Medas   +5 more
wiley   +1 more source

Underground fingerprint module positioning algorithm based on WiFi

Gong-kuang zidonghua, 2014
In order to improve positioning accuracy of underground personnel, an underground fingerprint module positioning algorithm based on WiFi was proposed. The algorithm saves measured signal strength from sampling point and its location information to form ...
DONG Jianping, YANG Cheng, LU Xiaoli
doaj   +1 more source

Design of personnel positioning system for fully mechanized coal face with low power consumption

Meikuang Anquan, 2023
Most of the existing accurate positioning systems for underground personnel adopt UWB positioning technology, which is based on the layout mode of personnel positioning card + positioning substation to achieve centimeter-level high precision positioning.
Xian CHEN, Shu ZHOU
doaj   +1 more source

Forecasting Airport Passenger Flows Using Mobile Network Data: Insights for Sustainable Mobility and Strategic Infrastructure Planning

Business Strategy and the Environment, EarlyView.
ABSTRACT Airports are strategic and environmental nodes in global transport systems where rapid passenger growth challenges capacity, sustainability, and resilience. This study uses anonymized mobile network data to analyze and forecast passenger dynamics at Lisbon Airport, Portugal, linking data‐driven insights to sustainable mobility and ...
João Carlos Ferreira, Carlos M. P. Sousa, Marco Esperança, Babak Taheri   +3 more
wiley   +1 more source

Real‐time lithology identification while drilling based on drill cuttings image analysis with ensemble learning

Deep Underground Science and Engineering, EarlyView.
A lithology identification while drilling method was developed, integrating an automated cuttings sampling system, a smart drilling rig, and an ensemble learning model. Underground trials achieved 97.42% accuracy in real‐time identification of cuttings lithology and composition, enhancing hazard management and supporting unmanned drilling technology in
Kun Li, Ting Ren, Ningping Yao, Jon Roberts, Haitao Song, Zhongbei Li, Xueqiu He, Liang Zhao   +7 more
wiley   +1 more source

High atmospheric pressure rescues plant growth under humidity stress: A model for climate‐resilient deep underground agriculture

Deep Underground Science and Engineering, EarlyView.
High atmospheric pressure (120 kPa) in deep underground counteracts humidity‐induced physiological stress in plants, stabilizing water balance and enhancing antioxidative defenses. This synergy boosts biomass despite elevated humidity, demonstrating sustainable deep underground agriculture potential under climate uncertainty.
Yuxin He, Linglu Xu, Xiao Tan, Wenhua Zhuang, Naiwen Li, Chao Liu, Bo Tan   +6 more
wiley   +1 more source

Advances in vital‐sign prediction and early‐warning models for underground coal mine workers integrating environmental factors

Deep Underground Science and Engineering, EarlyView.
This review synthesizes advances in predicting miners' vital signs by integrating environmental monitoring (dust, temperature, and gas) with physiological data. It highlights multi‐source data fusion techniques and early‐warning models for enhanced occupational safety in underground coal mines.
Junji Zhu, Dawei Cui, Yingjie Liu, Yuntao Liang, Yue Zhang   +4 more
wiley   +1 more source

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source