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COMPILE—A Generic Benchmark Case for Predictions of Marine Pile-Driving Noise
Lippert, Stephan,Nijhof, Marten,Lippert, Tristan,Wilkes, Daniel,Gavrilov, Alexander,Heitmann, Kristof,Ruhnau, Marcel,von Estorff, Otto,Schafke, Alexandra,Schafer, Ingo,Ehrlich, Jan,MacGillivray, Alexa IEEE 2016 IEEE JOURNAL OF OCEANIC ENGINEERING - Vol.41 No.4
<P>The prediction of underwater noise emissions from impact pile driving during near-shore and offshore construction activities and its potential effect on the marine environment has been a major field of research for several years. A number of different modeling approaches have been suggested recently to predict the radiated sound pressure at different distances and depths from a driven pile. As there are no closed-form analytical solutions for this complex class of problems and for a lack of publicly available measurement data, the need for a benchmark case arises to compare the different approaches. Such a benchmark case was set up by the Institute of Modelling and Computation, Hamburg University of Technology (Hamburg, Germany) and the Organisation for Applied Scientific Research (TNO, The Hague, The Netherlands). Research groups from all over the world, who are involved in modeling sound emissions from offshore pile driving, were invited to contribute to the first so-called COMPILE (a portmanteau combining computation, comparison, and pile) workshop in Hamburg in June 2014. In this paper, the benchmark case is presented, alongside an overview of the seven models and the associated results contributed by the research groups from six different countries. The modeling results from the workshop are discussed, exhibiting a remarkable consistency in the provided levels out to several tens of kilometers. Additionally, possible future benchmark case extensions are proposed.</P>
Wu Vickie,Zhao Victoria,Issa Rula,Wilkes Meredith,Wallach Elizabeth,Rapaport Robert,Romero Christopher,Yau Mabel 대한소아내분비학회 2021 Annals of Pediatirc Endocrinology & Metabolism Vol.26 No.3
Purpose: This study aimed to evaluate the time interval to menarche after gonadotropin-releasing hormone agonist (GnRHa) treatment in females with central precocious puberty (CPP) and to identify factors contributing to timing of menarche.Methods: We retrospectively reviewed medical records of 39 females with CPP who reached menarche after GnRHa treatment (leuprolide or histrelin). CPP diagnostic criteria were breast development at <8 years old, measurable pubertal luteinizing hormone and/or estradiol concentrations, and bone age advancement. Indications to treat were advanced bone age and psychosocial concerns. Descriptive summaries were reported as frequency and proportion for categorical variables and mean and standard deviation for continuous measures. Linear regression models were developed to evaluate the associations of clinical factors with the time interval to menarche.Results: Mean age was 9.4±1.6 years at treatment onset, and treatment duration was 2.2±1.4 years. Menarche occurred at 12.6±1.1 years, which was 1.04±0.5 years after treatment discontinuation. This was negatively associated with Tanner stage of breast development and bone age at treatment onset and change in bone age during treatment. No association was seen between time interval to menarche and treatment duration, medication, or body mass index.Conclusion: We found the average time interval to menarche after GnRHa treatment in our population of female patients with CPP to be 1.04±0.5 years; this is in agreement with other reports. Tanner stage of breast development, bone age at treatment onset, and change in bone age were negatively associated with time interval to menarche. These data provide clinical correlates that assist providers during anticipatory guidance of patients with CPP after GnRHa treatment.
Ramesh C. Khanal,Luke R. Howard,Theodore J. Rogers,Samuel E. Wilkes,Ishwori B. Dhakal,Ronald L. Prior 한국식품영양과학회 2011 Journal of medicinal food Vol.14 No.12
The effect of feeding grape pomace on certain metabolic parameters associated with high fructose (HF)feeding was studied. Forty male growing Sprague–Dawley rats were randomly assigned into groups: (1) control; (2) HF; (3)HF with low-level (1.5% of diet) grape pomace (HF + LP), and (4) HF with high-level (5.0% of diet) grape pomace (HF + HP). The HF + LP and HF + HP diets provided 115 and 218 mg of procyanidins/kg, respectively. Compared with the controls, HFfed animals consumed less and were smaller, whereas animals in the HF + LP and HF + HP groups were in between. A similar trend was observed for abdominal fat and abdominal fat as a percentage of body weight. No change in heart or kidney weight occurred. Liver weight as a percentage of body weight was higher for animals when fructose was included in the diet compared with those on control diet, and inclusion of grape pomace had no effect. Fasting plasma glucose, insulin, and triglyceride levels tended to be higher in animals fed HF diet, and grape pomace reduced their levels to values similar to the control animals. Compared with control animals, HF-fed animals had higher weekly postprandial plasma triglycerides, which were reduced by feeding grape pomace, but no change in plasma cholesterol was observed. Glucose intolerance was observed in animals fed HF diet and was accompanied by a 25% increase in homeostatic model assessment (HOMA) of insulin resistance. Inclusion of grape pomace increased glucose tolerance and insulin sensitivity. No significant change (P > .1) in HOMA of β-cell function or Quantitative Insulin-Sensitivity Check Index was observed. Overall, HF diet did not produce as strong a response of metabolic syndrome as has been shown in the literature. The inclusion of grape pomace in the diet was effective in modulating some aspects of metabolic parameters associated with metabolic syndrome, and the higher level of grape pomace in the diet produced a slightly better response than the lower level.
Ramesh C. Khanal,Luke R. Howard,Samuel E. Wilkes,Theodore J. Rogers,Ronald L. Prior 한국식품영양과학회 2012 Journal of medicinal food Vol.15 No.9
An experiment was conducted to study the protective effect of feeding extruded and unextruded blueberry pomace (BBP) on selected metabolic parameters associated with metabolic syndrome in a model of high fructose (HF)-fed growing Sprague–Dawley rats. Treatments were as follows: (1) control (modified AIN-based diet); (2) HF diet (AIN diet with 58% fructose); (3) HF diet with 1.5% unextruded BBP; (4) HF diet with 1.5% extruded BBP; (5) HF diet with 3% unextruded BBP; and (6) HF diet with 3% extruded BBP. Compared with the control, HF feeding increased fasting plasma insulin and fasting and postprandial plasma triglycerides as well as homeostatic scores of insulin resistance and β-cell function, but not weight gain, diet intake and efficiency, abdominal fat, oral glucose tolerance, and fasting and postprandial plasma glucose, cholesterol, and leptin levels. Inclusion of unextruded or extruded BBP was effective in minimizing or ameliorating the fructose-induced metabolic anomalies, except postprandial plasma triglycerides, especially at 3% of the diet. In addition, unextruded or extruded BBP at 3% of the diet was also able to reduce plasma cholesterol and abdominal fat relative to the HF control, which may impart additional health benefits. Compared with the control, inclusion of unextruded or extruded BBP at both 1.5% and 3% resulted in lower total fat weight, and animals fed a diet supplemented with 3% unextruded BBP in fasting state or 3% unextruded BBP in fed state had lower leptin levels than the control. This is the first study demonstrating the beneficial effects of feeding blueberry pomace on health.
Lonsdale, Carol J.,Lacy, M.,Kimball, A. E.,Blain, A.,Whittle, M.,Wilkes, B.,Stern, D.,Condon, J.,Kim, M.,Assef, R. J.,Tsai, C.-W.,Efstathiou, A.,Jones, S.,Eisenhardt, P.,Bridge, C.,Wu, J.,Lonsdale, Co IOP Publishing 2015 The Astrophysical journal Vol.813 No.1
<P>We present Atacama Large Millimeter/submillimeter Array (ALMA) 870 mu m (345 GHz) data for 49 high-redshift (0.47 < z < 2.85), luminous (11.7 < log(L-bol/L-circle dot) < 14.2) radio-powerful active galactic nuclei (AGNs), obtained to constrain cool dust emission from starbursts concurrent with highly obscured radiative-mode black hole (BH) accretion in massive galaxies that possess a small radio jet. The sample was selected from the Wide-field Infrared Survey Explorer with extremely steep (red) mid-infrared colors and with compact radio emission from NVSS/FIRST. Twenty-six sources are detected at 870 mu m, and we find that the sample has large mid- to far-infrared luminosity ratios, consistent with a dominant and highly obscured quasar. The rest-frame 3 GHz radio powers are 24.7 < log P-3.0 GHz/W Hz(-1)) < 27.3, and all sources are radio-intermediate or radio-loud. BH mass estimates are 7.7 < log(M-BH/M-circle dot) < 10.2. The rest-frame 1-5 mu m spectral energy distributions are very similar to the 'Hot DOGs' (hot dust-obscured galaxies), and steeper (redder) than almost any other known extragalactic sources. ISM masses estimated for the ALMA-detected sources are 9.9 < log (M-ISM/M-circle dot) < 11.75 assuming a dust temperature of 30 K. The cool dust emission is consistent with star formation rates reaching several thousand M-circle dot yr(-1), depending on the assumed dust temperature, but we cannot rule out the alternative that the AGN powers all the emission in some cases. Our best constrained source has radiative transfer solutions with approximately equal contributions from an obscured AGN and a young (10-15 Myr) compact starburst.</P>
Towards a Personal Robotic-aid System
Juyi Park,Palis Ratanaswasd,Edward E. Brown Jr,Tamara.E. Rogers,Kazuhiko Kawamura,D. Mitchell Wilkes 한국과학기술원 인간친화 복지 로봇 시스템 연구센터 2004 International Journal of Assistive Robotics and Me Vol.5 No.2
A robotic-aid system could be more effective if the system were intelligent enough to understand the user needs and adapt its behaviors accordingly. This paper presents our efforts to realize such a personal robotic-aid system through multi-agent robot control architecture. This paper presents a framework for human-robot interaction, two cognitive agents responsible for human-robot interaction, and a set of memory structures. Several applications illustrate how the system interacts with the user.
Wilke, A.,Yang, J.‐,M.,Kim, J. W.,Seifarth, O.,Dietrich, B.,Giussani, A.,Zaumseil, P.,Storck, P.,Schroeder, T. John Wiley Sons, Ltd. 2011 Surface and interface analysis Vol.43 No.4
<P><B>Abstract</B></P><P>Complex oxide heterostructures on Si gain in the field of engineered Si wafers increasing interest as flexible buffer systems for developing virtual Si substrates. Strain engineering of thin epitaxial Si thin films on insulating oxide buffers is of special interest to boost charge carrier mobility for Silicon‐on‐Insulator (SOI) technologies. The single crystalline Si(111)/Y<SUB>2</SUB>O<SUB>3</SUB> (111)/Pr<SUB>2</SUB>O<SUB>3</SUB> (111)/Si(111) heterostructure offers, in principle, the opportunity to grow strain‐engineered epitaxial Si(111) layers, realizing compressed, fully relaxed, as well as tensile‐strained Si films. This flexibility is based on a thickness‐dependence of the Y<SUB>2</SUB>O<SUB>3</SUB> lattice constant in the oxide bi‐layer buffer: In theory, the Y<SUB>2</SUB>O<SUB>3</SUB> buffer lattice constant on Pr<SUB>2</SUB>O<SUB>3</SUB>/Si(111) can change from pseudomorphism (bigger than Si) over the Si lattice constant towards a fully relaxed status (smaller than Si). By a detailed interface analysis, using TEM‐EELS in combination with an in‐situ RHEED–XPS study of the isomorphic Y<SUB>2</SUB>O<SUB>3</SUB> growth on Pr<SUB>2</SUB>O<SUB>3</SUB>/Si(111), the physical origin of this Y<SUB>2</SUB>O<SUB>3</SUB> buffer lattice constant variation is identified. It is possible to discriminate between the contributions from chemical mixing effects between the isomorphic oxides Y<SUB>2</SUB>O<SUB>3</SUB> and Pr<SUB>2</SUB>O<SUB>3</SUB> on the one hand and true misfit strain relaxation mechanisms in stoichiometric Y<SUB>2</SUB>O<SUB>3</SUB> on the other hand. Copyright © 2010 John Wiley & Sons, Ltd.</P>
Wilke, Annika,Brans, Richard,Nordheider, Kathrin,Braumann, Antje,Hubner, Anja,Sonsmann, Flora K.,John, Swen M.,Wulfhorst, Britta Occupational Safety and Health Research Institute 2018 Safety and health at work Vol.9 No.4
Background: Occupational skin diseases (OSDs) are frequent in professions with exposure to skin hazards. Thus, a health educational intervention for apprentices of high-risk professions was conducted. It was the aim of this study to gain insight into possible effects of this intervention. Methods: A one-time skin protection seminar was conducted in 140 apprentices of health-related and non-health-related professions [trained cohort (TC)]. In addition, 134 apprentices of the same occupations were monitored [untrained cohort (UTC)]. The OSD-specific knowledge and the skin condition of the hands were assessed at baseline (T0), after the seminar (T1), and after 6 (T2) and 12 months (T3). Results: The OSD-specific knowledge increased in all cohorts from T0 to T3, but we found a significantly higher knowledge in the TC at T2 (p < 0.001, t = 3.6, df = 196, 95% confidence interval = 0.9, 3.3) and T3 (p < 0.001, t = 3.8, df = 196, 95% confidence interval = 1.0, 3.2) compared to the UTC. Our results indicated a better skin condition of the hands in the TC of the health-related professions but not in the non-health-related professions. Conclusion: The study indicates that an educational intervention may positively influence the disease-specific knowledge and the prevalence of OSD in apprentices. However, definite conclusions cannot be drawn because of the heterogeneous study cohorts and the study design. Future research should aim at tailoring primary prevention to specific target groups, e.g., in view of the duration and frequency of skin protection education, different professions, and gender-specific prevention approaches.