Results 91 to 100 of about 10,905 (259)

Prediction of Impact Response for Reinforced Concrete Beams by Numerical Simulation Method [PDF]

Journal of Rehabilitation in Civil Engineering
Brittle characteristics, low tensile strength, and rapid crack propagation upon exposure to impact loads are some of the issues associated with concrete.
Ahmad Rahmati Alaei, Seyed Mohammad Hossein Khatami   +1 more
doaj   +1 more source

Dynamic Characteristics for Traditional Wooden Structure in Korea by Using Impact Hammer Test

Procedia Engineering, 2011
AbstractThis paper presents an investigation on dynamic characteristics of Heunginjimun through both ambient vibration and impact hammer tests. Heunginjimun, treasure No. 1 in Seoul, Korea, is a traditional wooden structure. Ambient vibration test is performed and spectrum analysis of time history is carried out to identify dominant frequency contents ...
Park, S.A., Choi, J.S., Min, K.W.
openaire   +1 more source

Study on the Morphology, Wear Resistance, and Corrosion Resistance of CuSn12 Alloys Subjected to Machine Hammer Peening

Metals
In this study, machine hammer peening (MHP) was employed to enhance the surface properties of CuSn12 alloys, and the effects of different impact energies on the surface morphology, mechanical properties, and electrochemical properties were systematically
Ning Nie, Lu Yu, Shouwei Xu, Qiyuan Tian, Chenchen Ding, Lihong Su, Hui Wang   +6 more
doaj   +1 more source

Technical Efficiency and Cost Implications of No‐Cook Versus Traditional Alcohol Production Technologies at Household Scale

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In Vietnam, traditional distilled rice alcohol is often produced at the household scale with limited sanitary conditions, leading to low yield, unstable, and moderate‐quality alcohol products. No‐cook or Simultaneous liquefaction, saccharification, and fermentation (SLSF) technology has shown to be very promising thanks to its advantages such ...
Van‐Thai Hoang, Chinh‐Nghia Nguyen, Thi Mai‐Anh Do, Tien Cuong Nguyen, Son Chu‐Ky   +4 more
wiley   +1 more source

Helmeted hornbill cranial kinesis: Balancing mobility and stability in a high‐impact joint

The Anatomical Record, EarlyView.
Abstract Prokinesis—in which a craniofacial joint allows the rostrum to move relative to the braincase—is thought to confer diverse advantages in birds, mostly for feeding. A craniofacial joint would, however, be a weak link if cranial stability is important. Paradoxically, we have identified a craniofacial joint in helmeted hornbills (Rhinoplax vigil),
Mike Schindler, Benjamin Flaum, Armita Razieh Manafzadeh, Viktoriia Kamska, Kanmani Chandra Rajan, Maria Jose Robles Malagamba, Ruien Hu, Daniel Baum, Mason N. Dean   +8 more
wiley   +1 more source

Comparative and functional anatomy of masticatory muscles and bite force in opossums (Didelphimorphia, Didelphidae)

The Anatomical Record, EarlyView.
We describe the functional anatomy of masticatory muscles in nine opossums, finding a generalized anatomical pattern with differences related to skull morphology. Variation in quantitative myological data and estimated bite force was mostly related to size, and the increase in bite force supports dietary diversification associated with size increase ...
Juann A. F. H. Abreu, Diego Astúa
wiley   +1 more source

Description of the skull, braincase, and dentition of Moschognathus whaitsi (Dinocephalia, Tapinocephalia), and its palaeobiological and behavioral implications

The Anatomical Record, EarlyView.
Abstract A subadult Moschognathus whaitsi from the Eastern Cape Province, South Africa, was scanned using synchrotron radiation X‐ray computed tomography (SRXCT). Its subadult state allowed the cranial bones and teeth to be identified and individually reconstructed in 3D.
Tristen Lafferty, Luke A. Norton, Aliénor Duhamel, Julien Benoit   +3 more
wiley   +1 more source

Understanding the spacing of placodes in the eye: A comparative study across age and species

The Anatomical Record, EarlyView.
Abstract The conjunctival placodes of the avian eye form in an intriguing and conserved sequence in a circular annulus around the cornea. These 13–16 placodes develop into papillae that are essential for inducing underlying intramembranous flat bones, known as scleral ossicles, which form an important part of the ocular skeleton.
Florence Joseph, Tamara A. Franz‐Odendaal   +1 more
wiley   +1 more source

Evaluation of measurement uncertainty of drop hammer impact test for composite materials

Journal of Physics: Conference Series
Abstract Future aircraft structures are usually dominated by composites, and one of the key defects and forms of damage to composite structures is the impact damage caused by low-energy (especially low-speed) foreign matter. This kind of low-energy impact test is usually completed by the drop hammer testing machine, so accurately ...
Li Lei, Zhang Yao
openaire   +1 more source

Integrating whole‐bone and regional analyses to understand human scapular growth

The Anatomical Record, EarlyView.
Abstract This study investigates ontogenetic changes in human scapular morphology using three‐dimensional geometric morphometrics with whole‐bone and region‐specific analyses. The aim is to evaluate whether the scapula follows a regular developmental pattern and whether its functionally distinct components, the scapular spine (SS) and glenoid fossa ...
Azahara Salazar‐Fernández, José Miguel Carretero, Laura Rodríguez, Rebeca García‐González   +3 more
wiley   +1 more source