http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
J.E. Martin-Alfonso,M.J. Diaz,N. Nunez,C. Valencia,J.M. Franco 한국공업화학회 2011 Journal of Industrial and Engineering Chemistry Vol.17 No.6
The influence of cellulose pulp ethylation processing conditions has been evaluated to design suitable renewable and biodegradable lubricating greases from cellulose pulp-based gel-like dispersions. Ethyl/glucose molar ratio (E/G) has a positive effect on the ethyl groups degree of substitution (DS). Gel-like biodegradable dispersions of cellulose pulp in castor oil have been prepared by adding ethylated cellulose samples differing in the substitution degree to modify the rheological properties of castor oil. The rheology of ethyl cellulose/castor oil binary systems is highly influenced by DS. The linear viscoelastic functions and consistency are very similar to those found in traditional lithium lubricating greases.
Diaz Lantada, A.,Lafont Morgado, P.,Munoz-Guijosa, J.M.,Munoz Sanz, J.L.,Echavarri Otero, J.,Chacon Tanarro, E.,De la Guerra Ochoa, E. Techno-Press 2014 Smart Structures and Systems, An International Jou Vol.14 No.4
The combined use of smart materials, complementing each others' characteristics and resulting in devices with optimised features, is providing new solutions in many industries. The use of ingenious combinations of smart materials has led to improvements in actuation speed and force, signal-to-noise ratio, sensor precision and unique capabilities such as self-sensing self-healing systems and energy autonomy. This may all give rise to a revival for numerous families of smart materials, for which application proposals had already reached a stationary situation. It may also provide the boost needed for the definitive industrial success of many others. This study focuses on reviewing the proposals, preliminary studies and success cases related to combining smart materials to obtain multifunctional, improved systems. It also examines the most outstanding applications and fields for the combined use of these smart materials. We will also discuss related study areas which warrant further research for the development of novel approaches for demanding applications.
The environments of luminous radio-WISE selected infrared galaxies
Penney, J I,Blain, A W,Wylezalek, D,Hatch, N A,Lonsdale, C,Kimball, A,Assef, R J,Condon, J J,Eisenhardt, P R M,Jones, S F,Kim, M,Lacy, M,Muldrew, S I,Petty, S,Sajina, A,Silva, A,Stern, D,Diaz-Santos, Oxford University Press 2019 MONTHLY NOTICES- ROYAL ASTRONOMICAL SOCIETY Vol.483 No.1
Porcayo-Calderon, J.,Rivera-Munoz, E.M.,Peza-Ledesma, C.,Casales-Diaz, M.,de la Escalera, L.M. Martinez,Canto, J.,Martinez-Gomez, L. The Korean Electrochemical Society 2017 Journal of electrochemical science and technology Vol.8 No.2
Palm oil production is among the highest worldwide, and it has been mainly used in the food industry and other commodities. Currently, a lot of palm oil production has been destined for the synthesis of biodiesel; however, its use in applications other than the food industry has been questioned. Thereby for a sustainable development, in this paper the use of palm oil of low quality for corrosion inhibitors synthesis is proposed. The performance of the synthesized inhibitors was evaluated by using electrochemical techniques such as open circuit potential measurements, linear polarization resistance and electrochemical impedance spectroscopy. The results indicate that the fatty amides from palm oil are excellent corrosion inhibitors with protection efficiencies greater than 98%. Fatty amides molecules act as cathodic inhibitors decreasing the anodic dissolution of iron. When fatty amides are added, a rapid decrease in the corrosion rate occurs due to the rapid formation of a molecular film onto carbon steel surface. During the adsorption process of the inhibitor a self-organization of the hydrocarbon chains takes place forming a tightly packed hydrophobic film. These results demonstrate that the use of palm oil for the production of green inhibitors promises to be an excellent alternative for a sustainable use of the palm oil production.
Song, R.,Grabowska, W.,Park, M.,Osypiuk, K.,Vergara-Diaz, G.P.,Bonato, P.,Hausdorff, J.M.,Fox, M.,Sudarsky, L.R.,Macklin, E.,Wayne, P.M. Elsevier 2017 Parkinsonism & related disorders Vol.41 No.-
<P><B>Abstract</B></P> <P><B>Purpose</B></P> <P>To systematically evaluate and quantify the effects of Tai Chi/Qigong (TCQ) on motor (UPDRS III, balance, falls, Timed-Up-and-Go, and 6-Minute Walk) and non-motor (depression and cognition) function, and quality of life (QOL) in patients with Parkinson's disease (PD).</P> <P><B>Methods</B></P> <P>A systematic search in 7 electronic databases targeted clinical studies evaluating TCQ for individuals with PD published through August 2016. Meta-analysis was used to estimate effect sizes (Hedges's g) and publication bias for randomized controlled trials (RCTs). Methodological bias in RCTs was assessed by two raters.</P> <P><B>Results</B></P> <P>Our search identified 21 studies, 15 of which were RCTs with a total of 735 subjects. For RCTs, comparison groups included no treatment (n = 7, 47%) and active interventions (n = 8, 53%). Duration of TCQ ranged from 2 to 6 months. Methodological bias was low in 6 studies, moderate in 7, and high in 2. Fixed-effect models showed that TCQ was associated with significant improvement on most motor outcomes (UPDRS III [ES = −0.444, p < 0.001], balance [ES = 0.544, p < 0.001], Timed-Up-and-Go [ES = −0.341, p = 0.005], 6 MW [ES = −0.293, p = 0.06], falls [ES = −0.403, p = 0.004], as well as depression [ES = −0.457, p = 0.008] and QOL [ES = −0.393, p < 0.001], but not cognition [ES = −0.225, p = 0.477]). I<SUP>2</SUP> indicated limited heterogeneity. Funnel plots suggested some degree of publication bias.</P> <P><B>Conclusion</B></P> <P>Evidence to date supports a potential benefit of TCQ for improving motor function, depression and QOL for individuals with PD, and validates the need for additional large-scale trials.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Mind-body exercises like Tai Chi and Qigong (TCQ) show promise for addressing motor and non-motor symptoms in Parkinson’s disease. </LI> <LI> Meta-analyses support that TCQ training leads to clinically meaningful improvements in multiple domains of motor function and fall risk. </LI> <LI> Our findings also suggest that TCQ training leads to improvements in mood and quality of life. </LI> </UL> </P>
A multi-institutional analysis of sternoclavicular joint coverage following osteomyelitis
Sammy Othman,Omar Elfanagely,Saïd C. Azoury,Geoffrey M. Kozak,Jessica Cunning,Arturo J. Rios-Diaz,Prashanth Palvannan,Patrick Greaney,Matthew P. Jenkins,Doraid Jarrar,Stephen J. Kovach,John P. Fischer 대한성형외과학회 2020 Archives of Plastic Surgery Vol.47 No.5
Background Sternoclavicular joint (SCJ) osteomyelitis is a rare pathology requiring urgent intervention. Several operative approaches have been described with conflicting reports. Here, we present a multi-institutional study utilizing multiple surgical pathways for SCJ reconstruction. Methods A multi-institutional retrospective cohort study was conducted to identify patients who underwent surgical repair for sternoclavicular osteomyelitis between 2008 and 2019. Patients were stratified according to reconstruction approach: single-stage reconstruction with advancement flap and delayed-reconstruction with flap following initial debridement. Demographics, operative approach, type of reconstruction, and postoperative outcomes were analyzed. Results Thirty-two patients were identified. Mean patient age was 56.2±13.8 years and 68.8% were male. The average body mass index (BMI) was 30.0±8.8 kg/m2. The most common infection etiologies were intravenous drug use and bacteremia (both 25%). Fourteen patients (43.8%) underwent one-stage reconstruction and 18 (56.2%) underwent delayed twostaged reconstruction. Both single and delayed-stage groups had comparable rates of reinfection (7.1% vs. 11.1%, respectively), surgical site complications (21.4% vs. 27.8%), readmissions (7.1% vs. 16.6%), and reoperations (7.1% vs. 5.6%; all P>0.05). The single-stage reconstruction group had a significantly lower BMI (26.2±5.7 kg/m2 vs. 32.9±9.1 kg/m2; P<0.05) and trended towards shorter hospital length of stay (11.3 days vs. 17.9 days; P=0.01). Conclusions Both single and delayed-stage approaches are appropriate methods with comparable outcomes for reconstruction for SCJ osteomyelitis. When clinically indicated, a singlestage reconstruction approach may be preferable in order to avoid a second operation as associated with the delayed phase, and possibly shortening total hospital length of stay.
C.D.R. Azevedo,A. Baeza,E. Chauveau,J.A. Corbacho,J. Diaz,J. Domange,C. Marquet,M. Martinez-Roig,F. Piquemal,C. Roldan,J. Vasco,J.F.C.A. Veloso,N. Yahlali Korean Nuclear Society 2023 Nuclear Engineering and Technology Vol.55 No.7
In the TRITIUM project, an on-site monitoring system is being developed to measure tritium (<sup>3</sup>H) levels in water near nuclear power plants. The quite low-energy betas emitted by <sup>3</sup>H have a very short average path in water (5 ㎛ as shown by simulations for 18 keV electrons). This path would be further reduced by impurities present in the water, resulting in a significant reduction of the detection efficiency. Therefore, one of the essential requirements of the project is the elimination of these impurities through a filtration process and the removal of salts in solution. This paper describes a water treatment system developed for the project that meets the following requirements: the water produced should be of near-pure water quality according to ISO 3696 grade 3 standard (conductivity < 10 µS/cm); the system should operate autonomously and be remotely monitored.
M. J. L. BOADA,B. L. BOADA,D. GARCIA-POZUELO,V. DIAZ 한국자동차공학회 2011 International journal of automotive technology Vol.12 No.6
The behaviour of the tyre plays an important role in the vehicle handling. An accurate tyre model that estimates these forces and moments it is highly essential for the studies of vehicle behaviour. For the last ten years neural networks have attracted a great deal of attention in vehicle dynamics and control. Neural networks have been effectively applied to model complex systems due to their good learning capability. In this paper a recursive lazy learning method based on neural networks is considered to model the tyre characteristics under combined braking and cornering. The proposed method is validated by comparison with experimental obtained responses. Results show the estimated model correlates very well with the data obtained experimentally. Moreover, the neural model proposed allows to include the asymetric tyre behaviour in the tyre model without difficulty.