Results 41 to 50 of about 219 (166)

In-Process Monitoring of Hobbing Process Using an Acoustic Emission Sensor and Supervised Machine Learning

open access: yesAlgorithms, 2023
The complexity of products increases considerably, and key functions can often only be realized by using high-precision components. Microgears have a particularly complex geometry and thus the manufacturing requirements often reach technological limits ...
Vivian Schiller   +3 more
doaj   +1 more source

Assessment of Indoor Air Pollution From Cooking and Cleaning Activities in Italian Restaurant Kitchens

open access: yesIndoor Air, Volume 2026, Issue 1, 2026.
This work assesses indoor air quality (IAQ) in 15 restaurant kitchens in Northern Italy by monitoring air pollutants from both cooking and cleaning activities. Volatile organic compounds (VOCs), aldehydes, ozone (O3), nitrogen dioxide (NO2), carbon dioxide (CO2), and ultrafine particles (UFPs) were monitored across two seasons—winter and summer ...
Marta Keller   +12 more
wiley   +1 more source

Material Customized Toolpath Generation for the Near‐Net Shape Repair Manufacturing of Wear‐Damaged Gear Teeth

open access: yesJournal of Engineering, Volume 2026, Issue 1, 2026.
The manufacturing industry increasingly relies on laser metal deposition (LMD) for gear repair and manufacturing. This paper studies the repair process of a gear tooth, starting with the design and milling of a groove that serves as the substrate to rebuild the tooth.
Igor Ortiz   +5 more
wiley   +1 more source

Quantifying Public Perceptions of Hydrogen Adoption in the United Kingdom Incorporating Challenges, Acceptance Factors and Proposed Strategies

open access: yesEnergy Science &Engineering, Volume 13, Issue 12, Page 6332-6345, December 2025.
ABSTRACT This study investigates the public acceptance of hydrogen technologies in the United Kingdom's domestic energy sector, with a focus on green and low‐carbon hydrogen as a pathway to decarbonisation. The purpose is to evaluate the social, economic and perceptual factors shaping willingness to adopt hydrogen‐based appliances such as boilers, hobs
Nikhil Ahlawat, Ravi Kumar Pandit
wiley   +1 more source

Influence of Post‐Harvest Treatments on Antioxidant Potential and Metabolomics Profile of Coffee Beans

open access: yesFuture Postharvest and Food, Volume 2, Issue 4, Page 458-473, December 2025.
(1) The secondary metabolite profile of coffee beans was determined. (2) Processing affects not only the metabolite profile but also the volatile compound content. (3) Caffeine was the most abundant metabolite in all samples. (4) The fermentation‐roasting treatment improved the metabolite profile, whereas roasting, fermentation and soaking followed by ...
Stephano Tambo Tene   +1 more
wiley   +1 more source

Development and Application of OoW Equipment for Gear Hobbing

open access: yesJixie chuandong, 2023
As a typical synergistic minimal quantity lubrication (MQL) technology, oils on water(OoW) has almost the same cooling performance as a large amount of pouring cooling oil and excellent lubrication performance.
Zhang Fujiang, Li Zhongshan, Cui Weiwei
doaj  

Crack Propagation in Tooth Root: A Comparison Between Pulsator Test and Running Gears

open access: yesFatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 12, Page 5181-5194, December 2025.
ABSTRACT Tooth root fatigue fracture is a critical gear failure mode in which the tooth root breaks because of the repetition of bending load. The most widely adopted procedure for evaluating root strength is through pulsator testing. However, this test method does not present gears in meshing conditions. When focusing on the limited‐life region of the
Luca Bonaiti   +5 more
wiley   +1 more source

滚齿机范成链传动精度的反求

open access: yesJixie chuandong, 2000
The paper introduces the process of the design and check of generating chain drive precision for hobbing machine. Takeing the drive precision or precision range as goal design, the process establishes the direct relation between the goal precision and ...
夏水华
doaj  

Research on hobbing accuracy of flexspline tooth profile of harmonic drive

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing
Harmonic drives are critical components in robotic joints, and the hobbing accuracy of flexspline tooth profiles is essential for the transmission accuracy and operational stability of harmonic drives.
Qiushi HU, Heng LI
doaj   +1 more source

Review of additively manufactured zinc alloys by laser powder bed fusion for biomedical applications

open access: yesRare Metals, Volume 44, Issue 11, Page 8262-8291, November 2025.
Graphical abstract AbstractZinc (Zn) and its alloys have emerged as promising candidates for biomedical materials, owing to their controlled degradation kinetics, intrinsic biocompatibility, and the release Zn2+ ions which are known to promote bone regeneration and tissue healing.
Xuan Yang   +5 more
wiley   +1 more source

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