Abstrak Perbaikan lempung dengan semen, kapur, dan abu sekam (RHA) terbukti meningkatkan kuat geser daya dukung. Kandungan silika kayu (ASK) hampir sama RHA. Penelitian melihat pengaruh ASK pada terstabilisasi semen kapur. Pengujian Tekan bebas (UCS) dilakukan untuk membandingkan nilai tekan (qu) asli, distabilisasi kombinasi kapur dan/atau ASK. Sampel diuji empat kondisi. Hasil UCS tanpa pemer...

Fly ash is a waste produced mostly from the burning of coal in thermal power stations, which contributes to environmental pollution. Also, a number of studies have been conducted to investigate the influence of randomly oriented fibers on the engineering behavior of coarse grained and fine grained soils. The influence of randomly oriented polypropylene fibers on the engineering behavior of soil...

Small diameter tissue-engineered arteries improve their mechanical and functional properties when they are mechanically stimulated. Applying a suitable stress and/or strain with or without a cycle to the scaffolds and cells during the culturing process resides in our ability to generate a suitable mechanical model. Collagen gel is one of the most used scaffolds in vascular tissue engineering, m...

Using a microchannel assay, we demonstrate that cells adopt distinct signaling strategies to modulate cell migration in different physical microenvironments. We studied α4β1 integrin-mediated signaling, which regulates cell migration pertinent to embryonic development, leukocyte trafficking, and melanoma invasion. We show that α4β1 integrin promotes cell migration through both unconfined and co...

OBJECTIVE To explore how changes to the superficial region (SR) of articular cartilage during skeletal development impact its functional properties. It was hypothesised that a functional superficial region is not present in skeletally immature articular cartilage, and removal of this zone of the tissue would only negatively impact the dynamic modulus of the tissue with the attainment of skeleta...

Intravascular ultrasound may be useful for studying the natural history of atherosclerotic lesions of different morphologies and for guiding interventional strategies. This study was designed to test the hypothesis that tissue appearance by intravascular ultrasound is related to the biomechanical properties of atheroma components. Forty-three atheroma caps were obtained from the abdominal aorta...

The concept to high-level radioactive waste (HLW) repository generally involves anengineering-artificial barrier system, in which hardly compacted bentonite sand mixture blocks are placed carefully around the canister, and canister is of stiffness design. Placed sandmixture blocks, gradually receive hydration due groundwater. Thermal-hydraulic-mechanical-chemical phenomena after wetting, suctio...

OBJECTIVE To investigate the biosynthetic response of elderly human femoral head articular cartilage to mechanical stimulation in vitro and its variation with site. METHOD Full-depth cartilage biopsies of articular cartilage were removed from defined sites on 10 femoral heads from patients aged 68-95 years. Cartilage explants were subjected to either static or cyclic (2s on/2s off) loading in...