Results 51 to 60 of about 3,956 (194)
Growth environment strongly influences green coffee bean biochemistry, linking phytochemical composition to adaptation under abiotic stress. Abstract This study explores how bioactive compounds in green coffee beans (Coffea arabica L.) vary across different geographic regions, addressing the key question of how environmental factors shape coffee ...
I. Pettazzoni +6 more
wiley +1 more source
Predicting the fracture forming limit of 5754-O aluminum alloy by finite element simulation
Aluminum alloy has the advantages of low specific gravity, easy processing and good welding performance, so it is widely used on automobiles to achieve lightweighting.
Bin Yan +3 more
doaj +1 more source
Experimental Material Characterization and Formability studies on Aluminium Alloy (AA 8011) [PDF]
Operations for sheet metal shaping are essential to the production of many different kinds of goods. But there is still a problem with plastic fragility in this industry, which frequently results in faulty goods.
Ratna Babu Kuraku +3 more
doaj +1 more source
Epidemiological and awareness study of tuberculosis in Batu Pahat, Johor, Malaysia [PDF]
Tuberculosis (TB) remains one of the serious infectious diseases and has been characterized worldwide as an epidemic by World Health Organization (WHO). TB is still a public health problem in Malaysia.
Sanusi, Shuaibu Babaji
core
Development of Stress-Based Forming Limit Curves for Predicting Crack Occurred during Deformation of UHSS DP980’s Parts [PDF]
Unless the strain-based forming limit diagram (e-FLD) is a useful tool in failure prediction for sheet metal, the complex shape can lead to a non-linear strain history, which e-FLD cannot adequately describe.
Suranuntchai, Surasak +1 more
core +2 more sources
Distinct Roles of Dopamine and Noradrenaline in Physical Fatigue
ABSTRACT This triple‐blinded randomized crossover study investigated the roles of dopamine (DA) and noradrenaline (NA) in regulating exercise performance and fatigue using acute pharmacological manipulation. Eighteen healthy adults (9 males and 9 females; mean age = 23.4 ± 2.2 years) completed three experimental conditions.
Y. Laurisa Arenales Arauz +8 more
wiley +1 more source
Evaluation of formability and fracture of pure titanium in incremental sheet forming [PDF]
A forming limit diagram (FLD) is commonly used as a useful means for characterizing the formability of sheet metal forming processes. In this study, the Nakajima test was used to construct the forming limit curve at necking (FLCN) and fracture (FLCF ...
Gatea, Shakir +3 more
core +2 more sources
Apparatus Design and Finite Element Modeling for Controlled‐Speed Nakazima Experiments
This study has two primary aims: first, to design a scaled device with deformable tooling components that can conduct Nakazima experiments with a rotating tool, and second, to develop a 3D Finite Element model for scaled Nakazima‐test simulation considering deformable tooling components.
Radouane Benmessaoud
wiley +1 more source
This study presents a methodology for determining the forming limit diagram (FLD) of an ultra-thin (0.1 mm) commercially pure titanium (CP–Ti) sheet developed for use in metallic bipolar plates for fuel cells.
Kyung Mun Min +5 more
doaj +1 more source
Optimum segmented blank holder shape and its variable blank holder gaps (VBHGs) are determined by a sequential approximate optimization (SAO) with radial basis function network. In deep drawing, wrinkling and tearing of blank sheet are major defects. The
Jirasak SRIRAT +2 more
doaj +1 more source

