21 research outputs found

    Wp艂yw wysoko napi臋ciowego pola elektrycznego na szybko艣膰 kie艂kowania nasion pomidora

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    This paper presents a discussion about the application of electricity that stimulates the growth of the plant to a great extent. This paper also demonstrates that exposure to the action of a high voltage electric field can be an effective tool for the enhancement of germination. The experiments were carried out on tomato seeds. A pilot treatment unit was developed and used for the study. Under normal conditions (no treatment), only about 76% of a reference sample of such seeds were germinated. Other seed samples were subjected to 50 Hz electric fields ranging from 10 to 30 kV cm-1 with exposure time ranging from 10 to 30 sec. In the optimum laboratory test, 100% of the seeds were germinated. The weight of the resulting tomato seedlings was greater than that of untreated ones. The germination tests proved the efficiency of this method. Ozone generation by partial discharges between seeds seems to be the main effective parameter that enhances the growth.Artyku艂 przedstawia wyniki bada艅 zastosowania pola elektrycznego do stymulacji wzrostu ro艣lin. W pracy wykazano, 偶e poddanie nasion dzia艂aniu pola elektrycznego wysokiego napi臋cia mo偶e by膰 skutecznym narz臋dziem do stymulacji ich kie艂kowania. Do艣wiadczenia prowadzono na nasionach pomidora. Opracowano i zastosowano pilota偶owe urz膮dzenie do stymulacji nasion polem elektrycznym. W warunkach normalnych (bez dzia艂ania pola elektrycznego), wykie艂kowa艂o oko艂o 76% nasion z pr贸bki referencyjnej (kontrolnej). Inne pr贸bki nasion poddano dzia艂aniu pola elektrycznego o cz臋stotliwo艣ci 50 Hz w zakresie od 1 do 3 kV路mm-1, przy czasach ekspozycji od 10 do 30 s. W optymalnych warunkach testu laboratoryjnego wykie艂kowa艂o 100% nasion. Masa wyros艂ych z tych nasion siewek pomidora by艂a wi臋ksza ni偶 siewek wyros艂ych z nasion nie poddawanych dzia艂aniu pola elektrycznego. Testy kie艂kowania dowiod艂y skuteczno艣ci tej metody. Wytwarzanie ozonu poprzez cz臋艣ciowe wy艂adowania pomi臋dzy nasionami wydaje si臋 by膰 g艂贸wnym powodem stymuluj膮cym wzrost

    Anterior Cruciate Ligament Femoral Socket Preparation Using a Cannulated, Calibrated Drill With Adjustable Stop and Slotted Cannula

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    Anteromedial portal鈥揼uided femoral tunnel preparation during anterior cruciate ligament reconstruction can be difficult owing to poor visualization. This may cause iatrogenic damage to the medial femoral condyle cartilage and the posterior cruciate ligament fibers or overdrilling through the lateral femoral cortex, creating difficulties in the use of femoral suspensory devices during anterior cruciate ligament reconstruction. We describe an accurate and safe technique for femoral graft socket preparation using a cannulated, calibrated drill with an adjustable stop and slotted cannula. This easy and reproducible technique uses simple additional instruments and effectively addresses concerns related to femoral graft socket preparation, without requiring additional surgical time
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