103,450 research outputs found
Lamnostoma taiwanense Chiu, Huang & Shao in Chiu, Huang, Shao & Chen 2018
No full text* Lamnostoma taiwanense Chiu, Huang & Shao, this volume Lamnostoma taiwanense Chiu, Huang & Shao in Chiu, Huang, Shao & Chen, 2018: this volume (type locality: Juan-wei, Yilan, northeastern Taiwan). Remarks. Newly described in Taiwan by Chiu et al. (2018); only found in river mouths of northeastern Taiwan.Published as part of Ho, Hsuan-Ching, Smith, David G., Tighe, Kenneth A., Hibino, Yusuke & Mccosker, John E., 2018, Checklist of eels of Taiwan (orders Anguilliformes and Saccopharyngiformes): An update, pp. 5-17 in Zootaxa 4454 (1) on page 14, DOI: 10.11646/zootaxa.4454.1.3, http://zenodo.org/record/144668
DTQDB : a fair and fully utilized media access protocol for dual bus networks
No full textCover title.Includes bibliographical references (p. 20).Angela L. Chiu, Robert G. Gallager
Reposición de Escuela básica San Francisco de Chiu Chiu G-52, comuna de Calama
No full textMemoria revalidante de títuloEn el presente documento se ha desarrollado una propuesta arquitectónica general, para la construcción de la reposición de escuela de la localidad de San Francisco de Chiu Chiu en la comuna de Calama. Basado en un análisis del contexto inmediato, bajo un fundamento teórico de un programa arquitectónico, acorde a la función de los procesos educativos y métodos de trabajo, teniendo presente el espacio, función, forma y espíritu.
Se busca adaptar el aprendizaje a espacios flexibles como la implementación de salas interactivas y rincones de aprendizaje, permitiendo que los alumnos trabajen en equipo y que sean autónomos para resolver sus preguntas e inquietudes, y a su vez los profesores tengan los espacios para trabajar con sus pares, realizando clases en conjunto. Estos espacios deben contar con una adecuada acústica que permita instaurar un calendario diario dinámico, junto con los recursos tecnológicos que permiten interactuar sin delimitar la espacialidad.
Para logar la integración en el aprendizaje mutuo, se implementa en el diseño, aulas flexibles con el objetivo que comprendan diversas actividades que permiten trabajar en equipo, promoviendo la iniciativa y responsabilidad, la solución de problemas, la creatividad e imaginación, y vínculos sociales a través de; la construcción, el arte, la madurez intelectual, y el cuento.
Finalmente se busca resolver las problemáticas de infraestructura educacional actual, y a su vez generar la conexión con la comunidad e integración socio cultural indígena.Versión original del auto
Magnetically controlled growing rods in the management of early onset scoliosis: a systematic review
No full textBackground: Early onset scoliosis (EOS) presents in patients younger than 10 years. Magnetically controlled growing rods (MCGR) were developed as an outpatient distraction system for EOS, allowing to avoid multiple surgeries. This systematic review investigated the efficacy and feasibility of MCGR in EOS. Methods: This systematic review was conducted according to the PRISMA guidelines. PubMed, Google scholar, Embase, and Scopus were accessed in May 2022. All the clinical trials which investigate the role of MCGR for early onset scoliosis were accessed. Only studies reporting data in patients younger than 10 years with a preoperative Cobb Angle greater than 40° were eligible. The following data was extracted at baseline and at last follow-up: mean kyphosis angle, overall mean Cobb angle, mean T1–S1 length. Data from complication were also collected. Results: Data from 23 clinical studies (504 patients) were included in the present study. 56% (282 of 504) were females. The average length of the follow-up was 28.9 ± 16.0 months. The mean age of the patients was 8.7 ± 1.9 years old. The mean BMI was 17.7 ± 7.6 kg/m2. The mean kyphosis angle had reduced by the last follow-up (P = 0.04), as did the overall mean Cobb angle (P < 0.0001), while the overall T1–S1 length increased (P = 0.0002). Implant-associated complications, followed by spinal alignment failure, wound healing ailments, pulmonary complications, progressive trunk stiffness, persistent back pain, and fracture. Conclusion: The management of EOS remains challenging. The current evidence indicates that MCGR may be effective to distract the spine and model the curve in EOS
Laboratory measurement of the mechanical and retention properties of a river embankment silty soil in partially saturated condition
No full textThe unsaturated condition is a significant feature to be taken into account for the reliable evaluation of seepage and stability characteristics of river embankment during their lifetime and especially in the periods of high river water levels, as this has strong influence on the mechanical and hydraulic behavior of the soil. However, this is not specifically considered under the standard assessment procedures and current design guidelines. Accounting for unsaturated soil condition, actual stress states and hydraulic paths representative of in situ conditions would eventually lead to more reliable safety analyses and optimized design criteria. In this context, an extensive specific experimental programme has been carried out on intact specimens sampled from a riverbank, aiming at comprehensively characterizing the unsaturated soil behavior. The present study focuses on the laboratory devices used and the investigation methodologies, which included suction-controlled oedometer, direct shear and evaporation tests. Relevant data interpretation and comparison are also briefly presented and discussed. The main purpose of this contribution is to underline the practical implications of the use of advanced laboratory tests in the stability analysis of river embankments
In-situ measurements of soil water content and suction to assess river embankments stability under transient flow conditions
No full textThe evaluation of river embankments stability is a key aspect in geohazard assessment and un-derestimating their failure risk can often produce unexpected and severe damages. Time-variable soil water content and suction distributions represent an intrinsic characteristic of river embankments, playing a funda-mental role during their stability assessment. To obtain a realistic estimate of these distributions in time and space – as a function of river water levels – a combination of field measurements, laboratory testing and ap-propriate calibrated numerical analyses should be used in a complementary way. For preliminary analyses, however, the river embankments are typically assumed to be under steady state conditions and this assumption provides overconservative results in terms of global safety at most times. Soil suction and water content were monitored at different depths within the embankment at the test site along river Secchia, north of the city of Modena (Italy), in order to study transient flow conditions and use it as input for probabilistic numerical anal-yses of the river embankment stability
A THERMAL ANALYSIS OF A FUNCTIONALLY-GRADED GYROID AS A HEAT SINK
No full textBecause of their high heat transfer area per unit volume, additive manufacturable cellular materials based on Triply Periodic Minimal Surfaces (TPMS) are receiving attention by designers of heat exchangers, thermal energy storage systems, and solar receivers. In this paper, numerical predictions are performed on a heat sink of the gyroid structure. The structure is designed using the MSLattice toolbox in MATLAB and imported for meshing and analysis using commercial finite element software. Conduction and convection heat transfer are considered by assuming a uniform temperature allowed by the surface that has to dissipate the heat, as well air flow through the structure. Simulations are carried out to predict the Nusselt number, the friction factor, and the temperature distribution in the structure. Such computations are performed by assuming equal cell size, under different mass flow rates, porosities, and porosity gradients along the main heat flux direction. Results indicate that the heat sink performance can be improved if the amount of solid material is increased near the heat source in order to reduce local thermal conduction resistance. The findings may be of interest to design extended surfaces under a limited weight or material constrain
sj-docx-1-ppn-10.1177_15271544211050611 - Supplemental material for Policy Advocacy and Nursing Organizations: A Scoping Review
No full textSupplemental material, sj-docx-1-ppn-10.1177_15271544211050611 for Policy Advocacy and Nursing Organizations: A Scoping Review by Patrick Chiu, Greta G. Cummings, Sally Thorne and Kara Schick-Makaroff in Policy, Politics, & Nursing Practice</p
A sustainable light-chargeable two-electrode energy storage system based on aqueous sodium-ion photo-intercalation
No full textDirect photo-to-chemical energy conversion realized through photocatalysis could provide the ultimate solution to the intermittency problem of solar energy. Among different designs of photocatalytic solar energy storage systems, the two-electrode system offers the simplest configuration for enabling highly integrated solar energy conversion and storage in one electrode and on-demand electrocatalytic discharge in the other. In this study, a novel type of visible light chargeable two-electrode Na-ion energy storage system has been developed, to the best of our knowledge, for the first time. It consists of a WO3-(TiO2)-CdS photo absorbing, energy storing bi-functional electrode, a Pt foil counter electrode, and a sacrificial hole scavenging electrolyte. This device delivered a discharge capacity of 12.3 μA h cm-2 (or 18.1 mA h g-1) after 10 min light charging without exhibiting signs of photo/chemical corrosion on the chalcogenide sensitizer. Further by controlling the working voltage window, structure distortion due to overcharging was avoided, thereby leading to an improvement of cyclability (discharge capacity retention after 5 working cycles) from 36% to 64%, and this was eventually elevated to ∼90% upon optimizing the discharging rate. A stable overall solar-to-electrical energy efficiency of ∼0.3% has been achieved for the system. Moreover, a modified photo-rechargeable two-electrode system was developed by replacing the sacrificial hole scavenger and Pt with polysulfide aqueous electrolyte and Cu2S electrocatalytic electrode, respectively. In this way the issue of non-regenerable hole scavenger consumption and instability of Pt in sulfide electrolyte was resolved, establishing a new design, highly promising towards the development of an all-sustainable photo-rechargeable system
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