Results 71 to 80 of about 3,756 (263)
Theoretical Analysis for the Flow Ripple of a Tandem Crescent Pump with Index Angles
Applied Sciences, 2017 This paper presents a theoretical approach for lowering the outlet flow ripple of a crescent pump by applying a tandem crescent pump consisting of two gear pairs with an index angle between them.
Hua Zhou +3 more
doaj +1 more source
Strategic Change, EarlyView.ABSTRACT Labor exploitation within agri‐food supply chains poses significant ethical and managerial challenges, particularly in Mediterranean contexts where irregular employment practices persist. This study investigates the case of NoCap, a third‐party ethical certification initiative operating in Italy that integrates social responsibility into ...
Claudio Mirabella +3 more
wiley +1 more source
Jixie chuandong, 2005 Improving"Computer + AutoCAD" mode,a new application software for external mesh gear pump is developed besed on unigraphics system.By the software,the new products of gear pump can be easily developed.And intelligently,virtually,serially of the product ...
李玉龙, 刘火昆, 徐强, 张红
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Limnology and Oceanography: Methods, EarlyView.Abstract Assigning taxonomic identity and thus assessing taxonomic diversity in gelatinous zooplankton is challenging due to their fragility and difficult preservation. Formalin fixation compromises DNA integrity, while flash‐freezing, ethanol, and acetone preservation affect morphological features. In this study, we developed a methodological protocol
Claudia Traboni +4 more
wiley +1 more source
Journal of Measurement Science and Instrumentation, 2021 Abundant system operation state information is included in the electrical signal of the hydraulic system motor. How to accurately extract and classify the operation information of electrical signal is the key to realize the condition monitoring of ...
YANG Sha +6 more
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Statistical evaluation of nylon chemical recycling through acidolysis
Polymer International, EarlyView.Sustainable PA6 recycling through acidolysis enabled temperature‐driven depolymerization, modeled by regression analysis. Recycled products successfully replaced up to 30% monomer while preserving PA6 chemical composition or crystalline structure. Abstract This study focuses on the sustainability of plastics reporting the recycling of polyamide (PA ...
Diego Penzo +7 more
wiley +1 more source
Kinematics Research of the Plunger Pump of the Gear-linked Cylinders Hydraulic Engine
Jixie chuandong, 2016 The structure and working principle of the plunger pump of the gear- linked cylinders hydraulic engine is put forward creatively for the issues that loose structure,more throttling lose,low efficiency and affected highly by working frequency that ...
Xu Wei, Zhang Hongxin, Shu Pei, Gao Lei
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Journal of Field Robotics, EarlyView.ABSTRACT People with physical disabilities face significant mobility challenges while climbing uneven surfaces and staircases. In these circumstances, traditional wheelchairs do not provide stable, safely controlled mobility, underscoring the importance of building superior stair‐climbing wheelchairs for both medical and infrastructure purposes.
Gopisetti Manikanta +10 more
wiley +1 more source
River Research and Applications, EarlyView.ABSTRACT Relieving barriers and increasing free flowing rivers is a global imperative to restore habitat connectivity for migratory fish stocks. While reducing river fragmentation will certainly improve biodiversity, the spread of non‐native species throughout a river system may be facilitated as an inadvertent outcome.
Matthew Harwood +5 more
wiley +1 more source
Jixie chuandong, 2004 By introduced the principle of close cubage in outer joggling gear pump, analyzed the relationship between close cubage & pressure and the groove width for unloading & side clearance in two gears, thus made their relative differential equation model ...
李玉龙, 王学军, 顾广华
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