Salt crystallization is one of the most important weathering agents and may limit the durability of building stones. Salt crystallization induces stresses inside the pores of stones. Consequently, stone durability is closely related to its physical properties and strength. The purpose of this study was to propose a statistical model for estimating stone durability against salt crystallization c...

If a significant fraction of metals is in dust, star-forming cores with metallicity higher than a critical value ∼ 10−6 − 10Z⊙ are able to fragment by dust cooling, thereby producing low-mass cores. Despite being above the critical metallicity, a metallicity range is found to exist around 10−5 −10Z⊙ where low-mass fragmentation is prohibited. In this range, three-body H2 formation starts at low...

Physical and dosimetric characteristics of HDMLC were studied for SRS6, 6, and 10 MV X-rays from Novalis Tx. This in-built tertiary collimator consists of 60 pairs (32 × 0.25 cm; 26 × 0.5 cm and 2 × 0.7 cm) of leaves. Properties of HDMLC studied included alignment, readout and radiation field congruence, radiation penumbra, accuracy and reproducibility of leaf position and gap width, static and...

OBJECTIVE Canoe sprint is divided into canoe and kayak. The difference between the two competitions is in physical performance. The aim of the present study was to compare and investigate the relationship between physical characteristics and fitness between the two canoe sprint competitors. METHODS Subjects were 11 canoe paddlers (C) and 12 kayak paddlers (K). They underwent anthropometric ch...

BACKGROUND Parental characteristics that influence child physical activity (PA) behavior often co-occur. An analytic approach that considers these co-occurring patterns can help researchers better understand the overall context of parental influence. The study aims were to: (1) identify diverse patterns of the relationships among parental characteristics, (2) examine the influence of these pare...

British Journal of General Practice, October 2013 55

Feed ingredients used in poultry feed, generally require size reduction before being mixing rations, such as corn. The process of reducing the corn is initial that must be carried out for ration production. machine commonly to reduce hammer mill. This study aims determine particle and physical characteristics a feed ingredient by grinding using was arranged completely randomized design with fou...