For there are few samples of water inrush from coal floor, how to dig wider information under the circumstance of limited sample data is to improve the prediction accuracy of water inrush form coal floor. Therefore, prediction model of water inrush is established based on correlation analysis and support vector machine (SVM). Not only does the model simplify the influenced indexes to construct ...

Data is scarce on early life exposure to arsenic and its association with malnutrition during infancy. This study followed the nutritional status of a cohort of 120 infants from birth to 9 months of age in an arsenic contaminated area in Bangladesh. Anthropometric data was collected at 3, 6 and 9 months of the infant's age for nutritional assessment whereas arsenic exposure level was assessed v...

ASTM C1585 is commonly used to determine the absorption and rate of absorption of water in unsaturated hydraulic cement concretes. Unfortunately, a wide range of relative humidities can exist in the samples after this relatively short conditioning period and such variation may considerably influence the test results. Three main variables were studied in this program: the water to cement ratio, ...

The requirement to monitor the chemical quality of water has become one of the major issues in environmental analytics. Ionmobility spectrometry (IMS), a fast, sensitive method traditionally used in security and military applications, is also suitable for environmental analysis and detection of organic pollutants from aqueous matrices, when combined with advantageous methods to isolate analytes...

Department of Civil Engineering, Tufts University, Medford, Massachusetts Filliben (1975) and Looney and Gulledge (1985) developed powerful tests of nonnality which are conceptually simple and computationally convenient and may be readily extended to testing nonnonnal distributional hypotheses. The probability plot correlation coefficient test consists of two widely used tools in water resource...

ISSUE ADDRESSED This paper describes results of a survey comparing people's knowledge of health and environmental impacts of dietary choices. Dietary choice is one of the key ways in which individuals can reduce their environmental impact in relation to water use and greenhouse gas emissions but this may not be widely known amongst the public due to limited press coverage. METHODS A street in...

Abstract We investigated the effects of acidic and circumneutral water on coal samples by uniaxial compression, acoustic emission, a series physical tests. In water, were damaged, their ultrasonic velocities decreased, as minerals such kaolinite calcite underwent dissolution. When pH was < 7, compressive strength elastic modulus while duration residual stage tended to increase. The reactions...