Search Results

You are looking at 1 - 10 of 141 items for :

Clear All
Open access

Volkan Mutlu

–25. Retrieved from http://web.ntpu.edu.tw/~language/workshop/read2.pdf . Oxford, R. L. &Burry-Stock, J. A. (1995). Assessing the use of language learning strategies worldwide with the ESL/EFL version of The Strategy Inventory for Language Learning (SILL). System, 23 (1), 1–23. Retrieved from https://eric.ed.gov/?id=EJ506791 . Park, Gi-Pyo. (1997). Language learning strategies and English proficiency in Korean university students. Foreign Language Annals, 30 (2), 211–221. Retrieved from https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1944-9720.1997.tb02343

Open access

Jobst Wendt

International Symposium on the Jurassic System, 12-22 September, Palermo, Italy, pp. 42-48. Petti, F.M. 2005. Formazione Inici. In: Cita, M.B., Abbate, E., Aldighieri, B., Ballini, M., Conti, M.A., Falorni, P., Germani, D., Groppelli, D., Manetti, P. and Petti, F.M. (Eds), Carta Geologica d’Italia 1:50.000. Catalogo delle Formazioni, Unità tradizionali, Serie III, 7, Fascicolo VI, Roma, pp. 259-270. Playford, P.E., Kerans, C. and Hurley, N.F. 1984. Neptunian dikes and sills in Devonian reef complexes of Canning Basin, Western Australia

Open access

Răzvan Voicu and Lawrence G. Dominguez

Abstract

Longitudinal connectivity restoration of watercourses is a major duty for scientists (biologists, hydro engineers, chemists etc.) that, by the means of technical exchange via conferences, projects, workshops, universities, and institutions demonstrate the major importance of a natural (non-anthropic) function of the lotic ecosystems. On the Ialomiţa River, the discharge sills located downstream from Padina chalet block the migration of some fish species, such as the brown trout (Salmo trutta) and the bullhead (Cottus gobio), prohibiting access to foraging areas and springs. Water Framework Directive 60/2000 / EC provides a legal framework for restoring “good status” of longitudinal and lateral connectivity of watercourses. Our proposed solution I can be applied to other discharge sills and dams sized between 3m and 6m high, and, where feasible can utilize existing power sources of some discharge sills. Solution II’s concepts allow the dimples inside the concrete plate to serve as a rest and recovery area for migratory species. Such benefits that ensure upstream/downstream fish migration while allowing discharge management to continue is unattainable in conventional systems. After solution II is applied the discharge sill does not lose any baseline characteristics while maintaining the original hydro-technical design objective, flood dissipation.

Open access

Ho Hwan Chun, Moon Chan Kim, Inwon Lee, Kookhyun Kim, Jung Kwan Lee and Kwang Hyo Jung

ABSTRACT

The stern boat deployment system was investigated to evaluate the capability of launching and recovering rigid hull inflatable boat (RHIB) via the stern ramp. The main parameters to launch and recover RHIB were tested at the design stage. The combined hydrodynamic effect of the stern wake and the water jet flow made it difficult to maintain the maneuvering and sea-keeping ability of RHIB approaching to the stern ramp. The safe recovery course was proposed to maintain the directional control of RHIB and to reduce the combined hydrodynamic effect in the transom zone. To evaluate the feasibility of RHIB recovery, the stern sill depth was measured in various conditions and the ramp availability time was obtained. Also, the experimental percent time operability (PTO) test was performed by the number of successive launching and recovering operations.

Open access

Mohamed A. Ashour, Tarek Sayed and Salah El-Attar

References Alikhani A., Behrozi-Rad R., Fathi-Moghadam M., 2010, Hydraulic jump in stilling basin with vertical end sill, Int. J. Phys. Sci. (IJPS) 5(1): 25-29. Ashour M.A.,1979, Aeration of the flow with dissolved oxygen & dissipating water energy in shooting flow, PhD. thesis, Moscow Institute of Strucutral Engineering. Avery S., Novak P, 1978, Oxygen transfer at hydraulic structures, J. Hydraul. Eng. 104(11): 1521-1540. Bestawy A., 2013, New shapes of baffle piers used in stilling basins as

Open access

Răzvan Voicu and Eric Merten

Abstract

The paper presents a case study that proposes a technical solution to facilitate fish migration upstream the discharge sills located on Someşul Mic River, near the Mănăştur Dam from the Cluj Napoca Town. The proposed solution provides building of a system to facilitate fish migration, placed on the left bank of Someşul Mic River, meant to restore the longitudinal connectivity of Someşul Mic River in front of the Mănăştur Dam discharge sills and to facilitate the access of the migratory fish species to upstream breeding habitats. The proposed migration system is based on using traction of winches and the gravitational fall of water and will lead to the restoration of the longitudinal connection of the Someşul Mic River near the weir selected as case study, and will reconnect a habitat with a length of around one km, that will contribute to insuring of optimal conditions for developing migratory fish species present in the area.

Open access

Neil D. Avent, A Webb, TE Madgett, T Miran, K Sillence, N Kaushik and M Kiernan

ABSTRACT

Current invasive procedures [amniocentesis and chorionic villus sampling (CVS)] pose a risk to mother and fetus and such diagnostic procedures are available only to high risk pregnancies limiting aneuploidy detection rate. This review seeks to highlight the necessity of investing in non invasive prenatal diagnosis (NIPD) and how NIPD would improve patient safety and detection rate as well as allowing detection earlier in pregnancy. Non invasive prenatal diagnosis can take either a proteomics approach or nucleic acid-based approach; this review focuses on the latter. Since the discovery of cell free fetal DNA (cffDNA) and fetal RNA in maternal plasma, procedures have been developed for detection for monogenic traits and for some have become well established (e.g., RHD blood group status). However, NIPD of aneuploidies remains technically challenging. This review examines currently published literature evaluating techniques and approaches that have been suggested and developed for aneuploidy detection, highlighting their advantages and limitations and areas for further research.

Open access

Răzvan Voicu and Liliana Voicu

Abstract

The channel of the river Crișul Repede inside the town affects both the biodiversity and implicit functionality of Crișul Repede River, therefore, this article aims to provide a solution for fish fauna migration in a system designed to restore longitudinal connectivity. The proposed migration system is based on the gravitational fall of water and will lead to the restoration of the longitudinal connection of Crişul Repede River near the weir selected as the study case. It will reconnect approximately three kilometers of habitat that will contribute to ensuring the optimal conditions for the development of migratory fish species present in the area.