Results 41 to 50 of about 2,380 (249)

A New Method for Isomorphism Identification of Planetary Gear Train based on Improved Hamming Number

open access: yesJixie chuandong, 2020
The isomorphism identification is one of the indispensable processes in structure synthesis of planetary gear train.It is of great significance for the creation of novel planetary gear train with excellent transmission characteristics.A new method for ...
Sun Wei   +4 more
doaj  

Technological Evolution in Fintech: A Decadal Scientometric and Systematic Review of Developments and Criticisms

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT This study aims to classify pivotal fintech innovations and explore the prospects and pitfalls associated with emerging fintech services extensively discussed in the literature. We conducted a multistage systematic review of research published on fintech over the past decade from a technological perspective. Using the Preferred Reporting Items
Muhammad Imran Qureshi, Nohman Khan
wiley   +1 more source

行星差动轮系功率分流和传动比的内在规律及速算法

open access: yesJixie chuandong, 2012
Taking the three planetary differential gear train of crawler walking mechanism as an example,the mechanism power dividing and transmission ratio formula are derived by analytical method,the inherent laws and fast calculation method of planetary ...
冯仲
doaj  

Climate‐Smart Destination Marketing and Community‐Based Tourism for Socio‐Economic Revitalization in Degraded Landscapes

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT As the global tourism industry confronts the existential imperatives of the Anthropocene, the remediation of degraded landscapes through regenerative economic models has emerged as a critical frontier in sustainability science. This research presents a rigorous empirical examination of the “restoration–revenue” paradigm, investigating the ...
Xin Sui, Tianchang Chen
wiley   +1 more source

Effects of preservatives and poisons on the elemental and isotopic composition of freshwater particulate organic matter

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Sediment traps, often used in tandem with preservatives or poisons, are widely used for the collection of particulate organic matter (POM), providing insight into the source to sink mechanisms that shape major biogeochemical cycles and sedimentary carbon sequestration.
Diana Velazquez   +2 more
wiley   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang   +3 more
wiley   +1 more source

Fatigue life analysis and prediction of planetary gear bearings in electromechanical composite transmission systems

open access: yesJixie qiangdu
To address the problems of unclear internal load evolution law of the electromechanical composite transmission system for high-speed tracked vehicles and the lack of fatigue life prediction method for planetary gear bearings, a dynamic model of planetary
GAI Jiangtao, LI Shujun, ZHANG Qiang
doaj  

Study on the Load Sharing Characteristic and Influential Factor of the Planetary Transmission of Vertical Mill Reducer

open access: yesJixie chuandong, 2017
Taking planetary gear pair time-meshing stiffness,meshing damping,bearing support stiffness,support damping of vertical mill reducer into consideration,the vibration differential equation of planetary gear transmission is set up based on lumped parameter
Wang Wuguang
doaj  

Selection of the optimal two-speed planetary gear train for fishing boat propulsion [PDF]

open access: yesFME Transactions, 2020
Planetary gear trains (PGTs) offer numerous benefits when compared to conventional gear trains, e. g. multi-carrier planetary gear trains may be built by linking the shafts of different component planetary gear trains.
Troha Sanjin   +3 more
doaj  

Automated Lawn Maintenance: An Agronomic and Operational Review of Turf Health, Biodiversity, and Field Performance

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Grass mowing is one of the most resource‐consuming activities in green maintenance, whether in private areas such as home gardens or in public spaces like urban parks. In recent years, concerns related to climate change, human health, and sustainability have become increasingly prominent in green maintenance, leading manufacturers and industry
Andrea Palladini   +3 more
wiley   +1 more source

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