Near-wall velocity of suspended particles in microchannel flow

This contribution investigates the characteristic reduction of the particle velocity with respect to the velocity profile of a pure liquid (water) in a pressure driven flow (PDF). It is shown by simulations and experiments that particles are slowed down once their local perturbation "cloud" of the velocity field hits the wall. We show that this effect scales with the ratio of the distance of sphere's surface from the wall, a, and the radius, a, of the sphere, i.e. delta/a

The Influence of Audit Committee and Intellectual Capital on Company Value: The Role of Company Performance

The era of globalization has greatly influenced the development of the business world because it has proven to increase competition. This condition triggers the company to be able to continue to compete in order to obtain good value and perceptions from shareholders. This study aims to empirically prove the influence of audit committees and intellectual Capital on firm value. The novelty of this study is to test whether financial performance can mediate the influence of audit committees and intellectual Capital on firm value. The data used in this study are 80 companies in the consumer goods industry sector listed on the Indonesia Stock Exchange during the 2017-2021 period. Data processing was carried out using SPSS Version 26. The results showed that the Audit Committee had no significant effect on Financial Performance, Intellectual Capital had a significant positive effect on Financial Performance, Financial Performance had a direct effect on Firm Value, Audit Committee had no direct effect on Firm Value, Intellectual Capital had an effect directly on Firm Value, the Audit Committee has no indirect effect on Firm Value through Financial Performance, and Intellectual Capital has an indirect effect on Firm Value through Financial Performance. The results of this study have implications for companies to pay attention to the application of Intellectual Capital and to further improve the effectiveness of corporate governance through the performance of the Audit Committee

Syntactic bootstrapping in children with mental retardation

Thesis (B.Sc)--University of Hong Kong, 2004."A dissertation submitted in partial fulfilment of the requirements for the Bachelor of Science (Speech and Hearing Sciences), The University of Hong Kong, December 31, 2004."Also available in print.published_or_final_versionSpeech and Hearing SciencesBachelorBachelor of Science in Speech and Hearing Science

DETERMINAN EARNINGS RESPONSE COEFFICIENT DENGAN COVID-19 SEBAGAI VARIABEL MODERASI PADA PERUSAHAAN YANG TERDAFTAR DI BURSA EFEK INDONESIA

Penelitian ini bertujuan untuk membuktikan secara empiris pengaruh leverage, profitabilitas, ukuran perusahaan, dan growth opportunity yang dimoderasi oleh covid-19 terhadap earnings response coefficient pada perusahaan-perusahaan yang terdaftar di Bursa Efek Indonesia. Peneliti menggunakan metode purposive sampling dalam pengumpulan sampel. Penelitian ini menggunakan sampel perusahaan-perusahaan yang terdaftar di Bursa Efek Indonesia pada tahun 2018-2021. Metode yang digunakan dalam penelitian ini adalah analisis regresi linear berganda. Variabel dependen dalam penelitian ini adalah earnings response coefficient yang dihitung dengan kemiringan β1 pada hubungan antara cumulative abnormal return (CAR) dan unexpected earnings (UE). Variabel independen dalam penelitian ini adalah leverage yang diukur dengan rasio debt to total aset ratio, profitabilitas yang diukur dengan rasio return on equity, ukuran perusahaan yang diukur dengan logaritma natural dari total aset, dan growth opportunity yang diukur dengan rasio market to book value. Variabel moderasi dalam penelitian ini adalah covid-19 yang diproksikan dengan variabel dummy. Hasil penelitian ini menunjukkan bahwa ukuran perusahaan berpengaruh positif terhadap earnings response coefficient, leverage, profitabilitas dan growth opportunity tidak berpengaruh terhadap earnings response coefficient, covid-19 secara negatif memoderasi pengaruh ukuran perusahaan terhadap earnings response coefficient, dan covid-19 tidak tidak mampu memoderasi pengaruh leverage, profitabilitas, dan growth opportunity terhadap earnings response coefficient

EVALUASI OVER CURRENT RELAY DAN GROUND FAULT RELAY PADA PENYULANG NATUNA DI GI KERAMASAN PALEMBANG MENGGUNAKAN SOFTWARE ETAP 19.0.1

Perangkat sistem proteksi adalah beberapa peralatan atau komponen yang saling berhubungan dan bekerja sama untuk tujuan pengaman/proteksi. Suatu sistem tenaga listrik dapat mengalami berbagai macam gangguan salah satunya yaitu gangguan hubung singkat yang dapat mengakibatkan kerusakan pada peralatan-peralatann dalam sistem tenaga listrik tersebut. Agar tidak terjadi kerusakan yang lebih luas pada sistem tenaga listrik, maka gangguan harus dengan cepat dilokalisir dengan suatu sistem proteksi yang dapat bekerja dengan cepat. Rele arus lebih dan rele gangguan tanah bekerja dengan memonitor besaran arus yang terdapat pada penghantar, apabila besaran arus tersebut melebihi batas penyetelan rele maka rele akan bekerja dengan memerintahkan circuit breaker (CB) untuk memutuskan penyaluran listrik. Untuk itu penulis membahas bagaimana cara mengetahui besaran setting rele arus lebih dan rele gangguan tanah kemudian mensimulasikan koordinasi rele proteksi tersebut pada software ETAP 19.0.1. Program ini berfungsi untuk merancang suatu sistem kelistrikan, kemudian disimulasikan apakah nilai penyetelan yang telah dimasukkan pada komponen telah sesuai dengan prosedur kehandalan suatu rele proteksi

Evaluation of deformed image-based dose calculations for adaptive radiotherapy of nasopharyngeal carcinoma

The ultimate goal of adaptive radiotherapy (ART) is to deliver truly customized radiation treatments. Currently, the quality of cone-beam computed tomography (CBCT) images is still inferior to that of conventional CT images in contour delineations and dose calculations for replanning purposes. This retrospective study aims to evaluate the dosimetric accuracy of using deformed conventional CT images for dose calculations, in the hope of inferring the feasibility of ART using planning CT (PCT) images that deformed to up-to-date CBCT images for patients with nasopharyngeal carcinoma (NPC). Thirty consecutive patients with NPC who had undergone 1 replan in their radiotherapy treatments were selected. The pretreatment PCT images were deformed to match the mid-treatment PCT images by deformable image registration. The same volumetric modulated arc therapy plan was then calculated on the deformed PCT images. The resulting dose distributions and dose volume histograms of the tumors and organs at risk (OARs) were compared with the original plan. Five dose levels, D98%, D95%, D50%, D5%, and D2%, were recorded for 9 NPC targets. Four dose levels, Dmax, D10%, D50%, and Dmean, were recorded for 15 OARs. The greatest percentage difference in observed dose for D98%, D95%, D50%, D5%, and D2% of the targets were 1.71%, 1.55%, 0.64%, 0.97%, and 1.13%, respectively. The greatest percentage difference in observed dose for Dmax, D10%, D50%, and Dmean of the OARs were -26.51% (left optic nerve), -17.06% (left optic nerve), 56.70% (spinal cord), and 18.97% (spinal cord), respectively. In addition, 29 of 45 (64%) dosimetric end points of the targets showed statistically significant dose differences (p < 0.05) between the original plan and the plan calculated on deformed images. Forty-nine of 60 (82%) dosimetric end points of the OARs also showed statistically significant dose differences (p < 0.05). Dose calculations using deformed PCT images could result in significant dose uncertainties in target volumes and OARs. Larger dose deviations were found in OARs in comparison with target volumes. The spinal cord and optic nerve showed the greatest percentage dose differences and the clinical significance has yet to be determined. Deformable registration error was believed to be the problem causing the dose deviations. Owing to unknown clinical significanceof dose deviation results obtained from this study, a conventional CT scan is still required for replanning in patients with NPC who are experiencing significant anatomical changes during the course of radiation treatment. [Abstract copyright: Copyright © 2017 American Association of Medical Dosimetrists. Published by Elsevier Inc. All rights reserved.

Improving Arabic language skills by integrating the Durusul Lugah Al-'Arabia and Silsilah Al-Azhar As-Syarif textbooks for PPDU Malang students

Arabic learning for foreign speakers is not the same as for native speakers. Therefore, innovation is needed, including integrating teaching materials. This study aims to uncover the integration model of Arabic textbooks by describing the forms, influencing factors, and implications that have arisen from the development of Arabic. This research approach is qualitative with the type of case study. Data mining is carried out using observation, interviews, and documentation. The data analysis method is discriminatory-qualitative. The results of this study show that (1) the form of textbook integration is carried out by combining two textbooks, selecting the appropriate theme, and evaluating separately (2) Supporting factors are competent teachers, dormitories, language coaching, and the use of Arabic. Meanwhile, the inhibiting factors are the diversity of students' abilities, dense activities, and lack of examples. Finally, (3) the impact caused is the realization of the environment, increasing abilities, and being able to make students happy to learn Arabic. Therefore, this study concludes that language learning innovation can be carried out by integrating textbooks from various relevant sources per the objectives

Interaction Between Pre- and Post-Migration Factors on Depressive Symptoms in New Migrants to Hong Kong from Mainland China

The goal of the current study is to examine the role of poor migration planning as a moderator for the effects of two post-migration factors, namely acculturation stress and quality of life, on symptoms of depression. Using a random sample of 347 Hong Kong new migrants from a 1-year longitudinal study, we used multiple regression analyses to examine both the direct and interaction effects of poorly planned migration, acculturation stress, and quality of life on depressive symptoms. Although poorly planned migration did not predict depressive symptoms at 1-year follow-up, it did exacerbate the detrimental effect of the two post-migration factors, namely high stress or low quality of life (both also measured at baseline) on depressive symptoms at this stage. Our results indicate that preventive measures must be developed for new immigrants in Hong Kong, especially for those who were not well prepared for migration