In active materials, uncoordinated internal stresses lead to emergent long-range flows. An understanding of how the behavior of active materials depends on mesoscopic (hydrodynamic) parameters is developing, but there...
详细信息
Mechanical testing of cancer cells has established that certain pathophysiological phenotypes are strongly associated with abnormal cell mechanics. We used a microfluidic platform previously developed in our laborator...
详细信息
To meet the local and international market’s timber demands, Azadirachta excelsa, a native tree locally known as a Sentang, has been listed among the potential fast-growing species to be planted for forest plantation...
To meet the local and international market’s timber demands, Azadirachta excelsa, a native tree locally known as a Sentang, has been listed among the potential fast-growing species to be planted for forest plantation establishment in the mid -1990s by the Malaysian government. Understanding wood properties is well known as crucial for the industry to use it as a raw material properly. Because of the underrepresented and limited accessible data on the tree’s qualities, the species’ potential has been determined. The physical properties of the 25-year-old Sentang tree planted in Gurun, Kedah, Malaysia, were discussed in this paper. The impact of radial growth rates on moisture content, density, and shrinkage from the pith to the bark at the stump, DBH, middle, and top of the trees is investigated in this paper. As a result, three trees were cut and classed as slow, average, or fast-growing. The results were as follows. From the pith to the bark, the green MC of all classed trees continues to diminish. The density, on the other hand, did not follow the same pattern; however, fast-growing trees have lower densities than slower-growing trees at the bottom, DBH, middle, and top of the trees. Tangential, radial, and longitudinal shrinkage appeared to reduce as tree height climbed, then increase again at the trees’ tops.
Azadirachta excelsa, known as Sentang by a native, a fast-growing and light-hardwood tree, was one of the selected species included in forest plantation projects in the mid-1990s by the Malaysian government to supply ...
Azadirachta excelsa, known as Sentang by a native, a fast-growing and light-hardwood tree, was one of the selected species included in forest plantation projects in the mid-1990s by the Malaysian government to supply timber demands for local and international markets. Ambiguity has been pointed out about the species potential due to understudied and limited data available regarding the properties of the tree. This paper investigates the physical properties of 26 years old Sentang tree planted at Jeli, Kelantan, Malaysia. This paper focuses on the effects of radial growth rates on moisture content, density, and shrinkage from the pith to the bark at the stump, diameter-breast height (DBH), middle, and top of the trees. Three trees were categorized into slow, average, and fast growth rates were selected and harvested for this purpose. The green moisture content (MC) of all the categorized trees tends to decrease from the pith to the bark. However, the same tendency was not observed in the density. As predicted, the shrinkage in the tangential direction is higher than in radial and longitudinal directions.
Patient-specific left ventricle (LV) myocardial models have the potential to be used in a variety of clinical scenarios for improved diagnosis and treatment plans. Cine cardiac magnetic resonance (MR) imaging provides...
详细信息
Scaffold-free techniques in the developmental tissue engineering area are designed to mimic in vivo embryonic processes with the aim of biofabricating,in vitro,tissues with more authentic *** clusters called spheroids...
详细信息
Scaffold-free techniques in the developmental tissue engineering area are designed to mimic in vivo embryonic processes with the aim of biofabricating,in vitro,tissues with more authentic *** clusters called spheroids are the basis for scaffold-free tissue *** this review,we explore the use of spheroids from adult mesenchymal stem/stromal cells as a model in the developmental engineering area in order to mimic the developmental stages of cartilage and bone *** from adult mesenchymal stromal/stem cells lineages recapitulate crucial events in bone and cartilage formation during embryogenesis,and are capable of spontaneously fusing to other spheroids,making them ideal building blocks for bone and cartilage tissue ***,we discuss data from ours and other labs on the use of adipose stromal/stem cell spheroids in chondrogenesis and osteogenesis in ***,recent studies support the notion that spheroids are ideal"building blocks"for tissue engineering by“bottom-up”approaches,which are based on tissue assembly by advanced techniques such as three-dimensional *** studies on the cellular and molecular mechanisms that orchestrate spheroid fusion are now crucial to support continued development of bottom-up tissue engineering approaches such as three-dimensional bioprinting.
Over the past decade, Fluid-Structure Interaction studies related to blood vessels have been an active area of research, as they adequately capture the multiphysics of blood flow within the circulatory system. Despite...
详细信息
Over the past decade, Fluid-Structure Interaction studies related to blood vessels have been an active area of research, as they adequately capture the multiphysics of blood flow within the circulatory system. Despite the growing interest, only few state-of-the-art reviews have been published in the literature, each focusing individually on the coronary artery, carotid artery, aorta, heart valves and peripheral arteries. This systematic review assesses the current research and implications of Fluid-Structure Interaction implementation strategies in relation to human arteries. It is meant to comprehensively amalgamate research studies on an array of arteries coupled with cardiovascular complications such as atherosclerosis, plaque calcification, aneurysms, aortic dissections and valve dysfunction. It additionally covers computational finite element and finite volume solver demands, coupling schemes, inlet and outlet boundary conditions specifications, Newtonian and non-Newtonian blood rheological properties, laminar and turbulent flow types, as well as the modelling of the vessel wall’s hyperelastic and viscoelastic mechanical behavior. The research information is retrieved from the last ten years and summarized in a tabulated format, to help researchers in easily extracting useful information for future investigations and reviews.
The present study aims to demonstrate how biomodels can be used as teaching tools for surgical techniques and training in a medical residency service. A case series was carried out in our orthopedics and traumatology ...
详细信息
Alzheimer’s disease (AD) is a pervasive neurodegenerative disorder that disproportionately affects women. Since neural anatomy and disease pathophysiology differ by sex, investigating sex-specific mechanisms in AD pa...
详细信息
暂无评论