Cellulose nanopaper (CNP) made of cellulose nanofibrils has gained extensive attention in recent years for its lightweight and superior mechanical properties alongside sustainable green attributes. The characterization studies on CNP at the moment have generally been limited to tension tests. In fact, thus far there not any report crack initiation growth behavior, especially under dynamic loadi...

Helical gears are commonly used in industry as they have advantages of higher power density, quieter operation etc., compared to spur gears. Conventional gear design is based on various design criteria, including durability and bending strength load rating. In recent times, fracture failure modes are gaining importance in addition to conventional failure modes. Stresses due to operating fatigue...

BACKGROUND Community stakeholders express a range of opinions about supervised injection facilities (SIFs). We sought to identify reasons for ambivalence about SIFs amongst community stakeholders in two Canadian cities. FINDINGS We used purposive sampling methods to recruit various stakeholder representatives (n = 141) for key informant interviews or focus group discussions. Data were analyze...

This study was to investigate the effect of soyabean isoflavones (SIF) on onset of puberty, serum hormone concentration, and gene expression in hypothalamus, pituitary and ovary of female Bama miniature pigs. Fifty five, 35-days old pigs were randomly assigned into 5 treatment groups consisting of 11 pigs per treatment. Results showed that dietary supplementation of varying dosage (0, 250, 500,...

• Slow, subcritical crack growth in soda-lime glass is studied. Crack initiation and slow due to a self-healed highlighted. High sensitivity, full-field optical measurement of tip stress gradients performed. Self-healing effect mimicked using companion computational simulation. Soda-lime (SLG) widely used structural material with many advantages terms thermal, physical mechanical properties bes...

A global, monthly averaged time series of Sun-induced Fluorescence (SiF), spanning January 2007 to June 2015, was derived from Metop-A Global Ozone Monitoring Experiment 2 (GOME-2) spectral measurements. Far-red SiF was retrieved using the filling-in of deep solar Fraunhofer lines and atmospheric absorption bands based on the general methodology described by Joiner et al, AMT, 2013. A Principal...

Solar induced chlorophyll fluorescence (SIF) emissions of photosynthetically active plants retrieved from space-borne observations have been used to improve models of global primary productivity. However, the relationship between SIF and photosynthesis in diurnal and seasonal cycles is still not fully understood, especially at large spatial scales, where direct measurements of photosynthesis ar...

In the present paper, computations of mixed mode stress intensity factor (SIF) variations along the crack front, and fatigue-crack-growth simulations, in cracked I-beams, considering different load cases and initial crack configurations, are carried out by employing the three-dimensional SGBEM (Symmetric Galerkin Boundary Element Method)–FEM (Finite Element Method) Alternating Method. For mode-...

ackground: In September 2003, North America’s first supervised injection facility (SIF) opened in Vancouver, Canada. We sought to examine he incidence and characteristics of overdose events at the SIF. ethods: The Vancouver SIF evaluation involves a comprehensive database within the SIF and the Scientific Evaluation of Supervised njection (SEOSI) cohort consisting of 1046 SIF users. We examined...

BACKGROUND In recent years, there has been increased interest in supervised safer injecting facilities (SIF) as a strategy to reduce the harms of illicit drug use; however, little work has been done to assess drug users' satisfaction with this service. This study was undertaken to explore injection drug users' experiences and opinions regarding North America's first SIF in Vancouver, Canada. ...