The primary objective of this study is to evaluate the clogging potential of installed pervious concrete systems, to analyze rehabilitation techniques and develop construction specifications for the construction of portland cement pervious concrete specific to the state of Florida. Currently, a consistent statewide policy has not been established in reference to credit for storage volume within the voids in pervious concrete and the coarse aggregate base. For this reason a current and updated assessment of pervious pavement is needed to benefit from the advantages of pervious pavement use in low traffic volume areas. Initially by modeling a pervious concrete system in a field laboratory with test cells of typical Florida soil conditions and groundwater elevations and combining these data with field data from multiple sites of long service life, a Florida specific construction methodology has been developed. It is hoped that by developing a more standardized design criteria for pervious pavements in Florida a statewide acceptance of portland cement pervious pavement can be achieved and credit can be earned based on the volume of stored stormwater. This study of field sites was subsequently expanded to include locations in the southeastern United States. Pervious concrete has suffered historically poor support due to a number of factors, including concern about poor long term performance due to clogging of surface pores. Eight existing parking lots were evaluated to determine the infiltration rates of pervious concrete systems that have had relatively no maintenance. Infiltration rates were measured using an embedded single-ring infiltrometer developed specifically for testing pervious concrete in an in-situ state. The average infiltration rates of the pervious concrete that was properly constructed at the investigated sites ranged from 0.4 to 227.2 inches per hour. A total of 30 pervious concrete cores were extracted and evaluated for infiltration rates after various rehabilitation techniques, including pressure washing, vacuum sweeping and a combination of the two methods, have been performed to rehabilitate the infiltration capability of the concrete. By evaluating the effectiveness of these rehabilitation techniques, recommendations have been developed for a maintenance schedule for pervious concrete installations. In most cases it was found that the three methods of maintenance investigated in this study typically resulted in a 200% or greater increase over the original infiltration rates of the pervious concrete cores. It is therefore recommended that as a general rule of thumb one or a combination of these rejuvenation techniques should be performed when the system infiltration rates are below 1.5 inches per hour to maintain the infiltration capability of pervious concrete pavements.

Целью данного исследования является оценка использования замещающего онтогенеза А.В. Семенович (2007) в нейропсихологической реабилитации обучающихся детей. Четверо детей амбулаторно (мужчины 6-10 лет), получающие нейропсихологическое лечение в отделении психологии реабилитационной клиники доктора Волковой, Екатеринбург, Россия изучались в течение 12 недель. Дети были целенаправленно отобраны для участия в исследовании на основе их наличия. Перед началом исследования была проведена первичная диагностика детей, чтобы установить базовые характеристики. Диагноз, поставленный в конце исследования, будет использоваться для сравнение. / This study seeks to evaluate the use of substituting (or replacement) ontogenesis by A.V. Semenovich (2007) in the neuropsychological rehabilitation of children with learning disabilities. Four children outpatients (males, age 6-10) receiving neuropsychological treatment in the Psychology Unit of Rehabilitation Clinic of Dr. Volkova, Yekaterinburg, Russia are being studied for 12 weeks. The children were purposefully sampled to participate in the study based on their availability. Before the start of study, an initial diagnosis of the children was carried out to establish baseline features. Diagnosis carried out at the end of the study would be used for comparison.