The Foundation of the Right Bank in Wadi-Zarat Dam

The geotechnical engineering characteristics of a calcareous crust formation are evaluated in order to determine the feasibility of its stability under the right bank of Wadi Zarat Dam. The crust is a rock similar, extremely heterogeneous, material with location of collapsing susceptibility when saturated. The formation is caverned and locally very permeable and can present a risk of losing the reservoir water, dissolution, settlement, and piping. In this case study, several alternatives to treat the crust formation are presented, discussed, and compared. Rational justifications for the adopted solution are given and the predicted performance during operation of the dam is provided in order to be compared with the observed behaviour

Utilization of Synthesized Nano-Zinc Oxide in Yellow Basic Dye Decontamination from Industrial Wastewater

ZnO nanorod has been successfully synthesized through the reduction of Zinc chloride salt with ammonia solution in the presence of triethanolamine (TEA) as surfactant agent via hydrothermal technique. The properties of the produced material were determined using different characterization techniques such as X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and Fourier Transform Infrared spectrum (FTIR). The results showed that the asprepared ZnO are rod- like morphologies at pH equal to 10. The synthesized nano rod-zinc oxide was employed asadsorbent agent for basic yellow 28 dye decolorization from polluted industrial wastewater. The synthesized nano-ZnO was achieved 93.26% dye decolorization affinity with in 60minutes. The variation in the different processing parameters on the dye sorption process was elucidated using batch technique. The increment in both the dye solution pH and its  temperature was association with decline in the decolourization process. The optimum nano-zinc oxide dosage was recorded to be equal to 10 g/L. The adsorption data at equilibrium were analyzed using Langmuir, Freundlich and Temkin equilibrium isotherms. The experimental results confirmed the applicability of synthesized nano-zinc oxide as adsorbent agent for dye decontamination from polluted wastewater.Keywords: nano-zinc oxide, dye decolourization, sorption parameters

Incompressible Squeeze-Film Levitation

Transverse vibrations can induce the non-linear compression of a thin film of air to levitate objects, via the squeeze film effect. This phenomenon is well captured by the Reynolds' lubrication theory, however, the same theory fails to describe this levitation when the fluid is incompressible. In this case, the computation predicts no steady-state levitation, contradicting the documented experimental evidence. In this letter, we uncover the main source of the time-averaged pressure asymmetry in the incompressible fluid thin film, leading the levitation phenomenon to exist. Furthermore, we reveal the physical law governing the steady-state levitation height, which we confirm experimentally

A temperature characterization of (Si-FinFET) based on channel oxide thickness

This paper presents the temperature-gate oxide thickness characteristics of a fin field-effect transistor (FinFET) and discusses the possibility of using such a transistor as a temperature nano-sensor. The investigation of channel oxide thickness–based temperature characteristics is useful to optimized electrical and temperature characteristics of FinFET. Current–voltage characteristics with different temperatures and gate oxide thickness values (Tox = 1, 2, 3, 4, and 5 nm) are initially simulated, and the diode mode connection is considered to measure FinFET’s temperature sensitivity. Finding the best temperature sensitivity of FinFET is based on the largest change in current (∆I) within a working voltage range of 0–5 V. According to the results, the temperature sensitivity of FinFET increases linearly with oxide thickness within the range of 1–5 nm, furthermore, the threshold voltage and drain-induced barrier lowering increase with increasing oxide thickness. Also, the subthreshold swing (SS) is close to the ideal value at the minimum oxide thickness (1 nm) then increases and diverges with increasing oxide thickness. So, the best oxide thickness (nearest SS value to the ideal one) of FinFET under the conditions described in this research is 1 nm

Lomustine use in combination with etoposide, cytarabine and melphalan in a brief conditioning regimen for auto-HSCT in patients with lymphoma: the optimal dose

Univ Fed Juiz de Fora, Div Hematol & Bone Marrow Transplantat, Juiz de Fora, MG, BrazilMed Univ S Carolina, Div Hematol Oncol, Charleston, SC 29425 USAUniv Fed Juiz de Fora, Div Clin Med, Juiz de Fora, MG, BrazilUniversidade Federal de São Paulo, Div Hematol, São Paulo, BrazilUniversidade Federal de São Paulo, Div Hematol, São Paulo, BrazilWeb of Scienc

Broadly tunable high-power random fibre laser

As shown recently, a long telecommunication fibre may be treated as a natural one-dimensional random system, where lasing is possible due to a combination of random distributed feedback via Rayleigh scattering by natural refractive index inhomogeneities and distributed amplification through the Raman effect. Here we present a new type of a random fibre laser with a narrow (∼1 nm) spectrum tunable over a broad wavelength range (1535-1570 nm) with a uniquely flat (∼0.1 dB) and high (>2 W) output power and prominent (>40 %) differential efficiency, which outperforms traditional fibre lasers of the same category, e.g. a conventional Raman laser with a linear cavity formed in the same fibre by adding point reflectors. Analytical model is proposed that explains quantitatively the higher efficiency and the flatter tuning curve of the random fiber laser compared to conventional one. The other important features of the random fibre laser like "modeless" spectrum of specific shape and corresponding intensity fluctuations as well as the techniques of controlling its output characteristics are discussed. Outstanding characteristics defined by new underlying physics and the simplicity of the scheme implemented in standard telecom fibre make the demonstrated tunable random fibre laser a very attractive light source both for fundamental science and practical applications such as optical communication, sensing and secure transmission

Wave propagation in stereo-lithographical (STL) bone replicas at oblique incidence

Comparisons between predictions of a Biot-Allard model allowing for angle-dependent elasticity and angle-and-porosity dependent tortuosity and transmission data obtained at normal incidence on water-saturated replica bones are extended to oblique incidence. The model includes two parameters which are adjusted for best fit at normal incidence. Using the same parameter values, it is found that predictions of the variation of transmitted waveforms with angle through two types of bone replica are in reasonable agreement with data despite the fact that scattering is not included in the theory

Closing the Gap between Research Evidence and Clinical Practice: Jordanian Nurses’ Perceived Barriers to Research Utilisation

Background: The nursing profession is a combination of theory and practical skill, and nurses are required to generate and develop knowledge through implementing research into clinical practice. Considerable number of barriers could hind implementing research findings into practice. Barriers to research utilisation are not identified in the Jordanian context. Aims and Objectives: To explore Jordanian nurses’ perception of the barriers to research utilisation in clinical practice. Design: A quantitative descriptive survey design was used. Methods: The sample consisted of 239 Jordanian nurses from one university hospital and three governmental hospitals. Nurses were conveniently recruited. Data was collection using the Barriers to Research utilisation questionnaire. Results: The majority of the participants were males (54%) and 53% of the participants were under the age of 30. The mean total score of barriers to research utilisation (BRU) was high at 2.97 (SD) out of 4 (the highest possible barriers score). The top three barriers were: “research results are not generalizable to their settings”, “lack of authority to change patient care procedures”, and “research articles are not published fast enough”. Conclusions: Barriers to research utilisation are high and were related to all aspects of research utilisation. These barriers need to be eliminated to improve the provided nursing care. To enhance research utilisation, a national-level guidance development system is needed. This will has the sole responsibility is to develop clinical guidelines, which are informed by the research, which practitioners and health services are then responsible for implementing into practice. Hence, hospital policies need to be reformed to address the procedure and activities of keeping the patients care up to date with current advances in healthcare disciplines. Keywords: Research utilisation, barriers, Jordan, Nurses, clinical practic