Stuffing box seals are the most common type of pump rotor seals because they are adjustable and periodically restorable assemblies during operation.Based on the study of physical processes, a sealing mechanism model of the stuffing box seal is formed as a combination of two successive hydraulic resistances: a pre-switch resistance, which is similar

Green concrete are generally composed of recycling materials as hundred or partial percent substitutes for aggregate, cement, and admixture in concrete.Limestone waste is obtained as a Counter Height Table by-product during the production of aggregates through the crushing process of rocks in rubble crusher units.Using quarry waste as a substitute

Dental agenesis is a common developmental anomaly that affects approximately 20% of the population and results in a reduction of the number of teeth present in the oral cavity.Very rarely, more than one anomaly caused due to varying local etiological factors are seen in one Blocks patient.The aetiology of dental agenesis may be attributed to either

A thermal transistor consists of three segments, the drain, the source, and the gate.We study the influence of the thermal resistance R_{G} in the gate segment systematically and reveal its key importance.In contrast to the negative differential thermal resistance between the drain and Resistance Bands the source that has been studied extensively d