We developed aboveground biomass equations for poplar plantations in Jiangsu Province, China, both compatible with tree volume equations and additive systems. Biomass equations were fitted with 80 selected and previously harvested sample trees. Additivity property was assured by applying a “controlling directly under total biomass proportion function” approach. Weighted regression was used to c...

Clinical gait analysis incorporating three-dimensional motion analysis plays a key role in planning surgical treatments in people with gait disability. The position of the Hip Joint Centre (HJC) within the pelvis is thus critical to ensure accurate data interpretation. The position of the HJC is determined from regression equations based on anthropometric measurements derived from relatively sm...

This study examined the validity of commonly used regression equations for the Actigraph and Actical accelerometers in predicting energy expenditure (EE) in children and adolescents. Sixty healthy (8-16 yrs) participants completed four treadmill (TM) and five self-paced activities of daily living (ADL). Four Actigraph (AG) and three Actical (AC) regression equations were used to estimate EE. Bi...

Regression equations have many useful roles in neuropsychological assessment. This article is based on the premise that there is a large reservoir of published data that could be used to build regression equations; these equations could then be used to test a wide variety of hypotheses concerning the functioning of individual cases. This resource is currently underused because (a) not all neuro...

the aim of this study was to estimate body fat percentage through circumference of different parts of body by hydrodensitometry (hydrostatic underwater weighing) as the criterion method and to develop related equations. 158 male students of isfahan university (mean age: 21.6 yrs, height: 174 cm, weight: 69.04 kg, body fat percentage: 15.61 kg, bmi: 22.59) were randomly selected. these subjects ...

abstract in recent years, automatic weather stations have been widely used for recording meteorological data in different time scales. therefore the accurate estimation of eto by combination equations can be evaluated using these set of short time scales data. daily eto can also be calculated by summation of hourly eto values. the purpose of this study is to compare the eto values estimated by ...

Abstract Solving linear systems of equations is essential for many problems in science and technology, including machine learning. Existing quantum algorithms have demonstrated the potential large speedups, but required resources are not immediately available on near-term devices. In this work, we study equations, with a focus two-norm Tikhonov regression settings. We investigate use variationa...