58 research outputs found

    Onderzoek naar het effect van de afsluiting van de Asan Baai op de getijbeweging in de Gele Zee

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    Dit rapport vormt de neerslag van een onderzoek naar de getijbeweging in het betreffende zeegebied en met name naar het effect van de afsluiting van de Asan Baai op deze getijbeweging. Om het probleem nader aan te duiden, zijn de volgende vragen geformuleerd: 1. Wat is het karakter van de dubbeldaagse getijbeweging in dit zeegebied? 2. Wat zijn de veranderingen in stromingen en waterstanden tengevolge van de afsluiting van de Asan Baai? 3. Kan er iets gezegd worden over de gemiddelde stromingscondities in het sluitgat tijdens het tot stand brengen van de afsluiting? Op deze vragen tracht dit rapport zo bevredigend mogelijke antwoorden te geven.VloeistofmechanicaHydraulic EngineeringCivil Engineering and Geoscience

    PESI - a taxonomic backbone for Europe

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    This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The attached file is the published version of the article.NHM Repositor

    A Mode Matching Technique For The Seismic Response Of Liquid Storage Tanks Including Soil-Structure Interaction

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    The paper establishes a computationally inexpensive method to deal with the dynamic response of liquid storage tanks subjected to seismic excitation including dynamic soil-structure interaction. The tank is modelled as a thin shell, the stored liquid is described asan inviscid and incompressible fluid and the soil medium is modelled as an elastic continuum.The dynamic response of the tank-liquid-soil system is derived in the frequency domain usingdynamic substructuring and mode matching. The tank vibrations are first expressed in terms ofthe in-vacuo shell modes while the liquid motion is described as a superposition of linear po-tentials. The soil reaction to the plate of the tank is derived on the basis of a boundary integralformulation with the excitation field being the seismic free-field ground motion. Due to its highcomputational efficiency, the proposed method is suitable when a large number of simulations isrequired as is the case in seismic risk analysis. It overcomes the limitations of most mechanicalanalogues used nowadays, while at the same time maintains an accuracy comparable to that offinite element models within a fraction of the computation time of the latter.Offshore EngineeringDynamics of StructuresEngineering Structure

    al-Misbāh fī al-Nahw By Nāsir al-Dīn al-Mutarrizī al-Nahwī (d. 610/1213) A Critical Edition of the Text with the Life History of the Author

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    Nāsir al-Dīn al-Mutarrizī al-Nahwī (d.610/1213) was one of the most renowned figures in the field of Arabic Grammar. He has left an indelible mark on the world of Arabic language and literature. He is also known as the successor of al-Zamakhsharī. He wrote a number of books but his al-Misbāh fī al-Nahw gained prominence at a level that no other book in this field could claim to achieve. For this reason, a great number of commentaries have been written in every age, of which the most famous are al-Daw and Khulāsat al-I‘rāb written by Tāj al-Dīn al-Isfrā’īnī and ‘Abd al- Karīm al-Tūsī (better known as Hājjī Bābā) respectively. Moreover, its translation into other languages also demonstrates its value as a useful book. Although al-Misbāh has been edited on more than one occasion, the published editions do not fulfil the needs and requirements of modern academic research criteria. The basic aim of this thesis is to present this book with a current modern research style so that the students, teachers and ordinary readers of Arabic language and literature may benefit from this work. This thesis is divided into two parts. The first part deals with the life history of the author and his other works. A brief note of the environment under which he grew up (generally referred to as the ‘Seljuk’ period) is also included in this part. The second part consists of a text edition that deals with the derivation (Takhrīj) of syntactical issues together with the differing opinions of grammarians on syntactical/grammatical issues. This part also proffers the idiomatic English translation of al-Misbāh

    A simple and selective flow-injection spectrophotometric determination of copper(II) by using acetylsalicylhydroxamic acid

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    A new simple, and rapid flow-injection spectrophotometric method is developed for the determination of trace amounts of Cu(II) by using a new chromogenic reagent acetylsalicylhydroxamic acid (ACSHA). The method is based on the formation of colored Cu(II)-(AcSHA)2 complex. The optimum conditions for the chromogenic reaction of Cu(II) with AcSHA is studied and the colored (green) complex is selectively monitored at lambda(max) 700 nm. With the reagent carrier solvent (dimethylsulfoxide (DMSO) and acetate buffer, pH 4.2) flow-rate of 1 ml min(-1) a detection limit (2S) of 1 mug l(-1) Cu(II) was obtained at a sampling rate of 80 sample h(-1). The calibration graph was linear in the Cu(II) concentration range 5-120 mug l(-1). The relative standard deviation (n = 10) was 0.64% for a sample containing 60 mug l(-1) Cu(II). The detailed study of various interferences confirmed the high selectivity of the developed method. The method was successfully applied to determine trace amounts of copper(II) in river and seawater samples. The accuracy of the method was demonstrated by the analysis of standard reference materials C12X3500 and C14XHS 50. (C) 2003 Elsevier Science B.V.,All rights reserved

    Treatment initiation rates of patients with positive anti-hepatitis c virus results in tertiary hospitals in Turkey

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    Introduction: The aim of this national, multicenter, cross-sectional, retrospective chart review study was to determine the proportion of patients in Turkey who received hepatitis C virus (HCV) treatment after receiving positive anti-HCV results during HCV screening. Methodology: Data related to patients' demographics, laboratory results, time interval from obtaining a positive anti-HCV result to treatment initiation, specialty of the physician requesting anti-HCV screening, and type of hospital were analyzed. Results: Among 1,000 patients who received a positive anti-HCV result, 50.3% were male and 78.5% were screened for HCV-RNA. Among HCV-RNA screened patients, 54.8% (n = 430) had a positive result. Among patients who tested positive for HCV-RNA, 72.8% received HCV treatment in line with their positive anti-HCV results. The median time from obtaining a positive anti-HCV result to initiation of HCV treatment was 91.0 days (interquartile range 42.0 to 178.5). Non -surgical branches requested HCV-RNA testing more frequently than surgical branches (p < 0.001). The rate of access to HCV treatment was higher among patients screened in university hospitals than among patients screened in training and research hospitals (p < 0.001). Conclusions: Our results indicate a higher rate of treatment initiation among patients with HCV infection than is described in the published literature. Furthermore, the time from screening to treatment initiation was considerably shorter compared with other international studies. However, since HCV-RNA testing was not requested in a significant portion of patients with a positive anti-HCV test result, there might be a large patient population with HCV who do not receive treatment

    KEWIRAUSAHAAN SEBAGAI SOLUSI MASALAH KETENAGAKERJAAN DI ERA Fourth Industrial Revolution (“4IR”)

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    Indonesia is preparing to facing the demographic bonus which is expected will increase at 2030,so there will be many additional productive aged 15-64 years who are ready to work. This will bedirectly related to labor issues in Indonesia, where the productive age will certainly find a jobs asan effort to fulfill the needs of their lives. If the productive age are trying to find a job in regularcompany, it will be a misstep because many large companies are closed due to the negative effectsof distruptive technology on the Fourth Industrial Revolution ("4IR"). The research method usedby the author is qualitative descriptive analysis that used to study of literature through literaturesuch as a newspaper, book, journal. The author concludes that the best way to overcomeemployment problems in the demographic bonus period is to create new jobs throughentrepreneurship. The Ministry of Industry makes a road map of "Making Indonesia 4.0" whichcontains 5 priority industries and 10 national strategies that strongly support the opening of a wideroad for entrepreneurship that dares to accept this challenges

    Evaluation of serum C-terminal telopeptide (CTX) value for the risk of medication related osteonecrosis of the jaws

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    Aim: The aim of this study was to evaluate pre-and post-treatment serum CTX levels of patients treated with bisphosphonate (BP) and the correlation of levels with MRONJ risk.Material and Methods: Patients treated with BP by the Endocrinology and Oncology Departments were included in this study. Blood samples were taken before and 12 months after BP treatment, and serum CTX values were determined with clinical examinations.Results: A total of 72 patients were included in the study. Of these patients, 32 had oncological and 40 had endocrinological disorders. The mean CTX value of all the patients was 453.7 (245.7-734.3) pg/ml, in oncology patients, it was 705.9 (398.6-945.6) pg/ml and in endocrine patients, it was 360.4 (209.2-598.2) pg/ml (p <0.001). The mean post-treatment CTX value of the remaining patients was 164.1 (106.9-301.8) pg/ml, and the difference was statistically significant before and after BP treatment (p <0.001). Among the patients included in the study, MRONJ was only observed in one oncology patient 18 months after the initial BP treatment.Discussion: MRONJ can be prevented by performing all dental treatments before BP treatment and eliminating local risk factors. CTX values should not only be evaluated after BP treatment, but also it may be useful to check before BP treatment to determine the course of the treatment

    Anisotropic carbon nanotube for new type of angle sensor development

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    Vertically Aligned Carbon Nanotubes (VACNTs) has captured attention by the researchers because of their flexibility and other attractive engineering properties. They are promising to be used as a functional bulk material in MEMS as well [1]. VACNT array (CNT forest) is known to be the darkest material on Earth because of their unique absorption index. However, this author has shown and explained that tip bent carbon nanotube forest can reflect light like mirror [2].This paper reports that selectively tip bent CNT forest act as an anisotropic mirror, and this property can be exploited to fabricate CNT-based flexible angle sensor that is first of its kind. In this report, we presented a method that can bend the tips of the CNT inside a VACNT array as described in Fig. 1(a). A rigid cylindrical tool rolls over the CNT forest to bend and align the CNTs in the direction of the tool motion. The alignment of the CNTs after process can be observed in Fig. 1(b). Later optical characterization was carried out (on the bent CNT zone) using a polarized laser source as explained in Fig. 1(c). It was observed that if we rotate the sample from 0 to 90 degree, the reflectance is decreasing; this is because the polarization reflection changes from along the nanotube to the perpendicular direction of the nanotubes which is also supported by the findings of Deheer et.al [3]. The result of this analysis is shown in Fig. 1(d). It can be seen that from 10-90 degree the graph is quite linear and the hysteresis of the curve is minimal. The average sensitivity was found to be 0.155%/degree rotation. This finding opens the gateway to fabricate a new CNT-based flexible and miniaturize angle sensor....
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