System and component design and test of a 10 hp, 18,000 rpm AC dynamometer utilizing a high frequency AC voltage link, part 1

Hard and soft switching test results conducted with one of the samples of first generation MOS-controlled thyristor (MCTs) and similar test results with several different samples of second generation MCT's are reported. A simple chopper circuit is used to investigate the basic switching characteristics of MCT under hard switching and various types of resonant circuits are used to determine soft switching characteristics of MCT under both zero voltage and zero current switching. Next, operation principles of a pulse density modulated converter (PDMC) for three phase (3F) to 3F two-step power conversion via parallel resonant high frequency (HF) AC link are reviewed. The details for the selection of power switches and other power components required for the construction of the power circuit for the second generation 3F to 3F converter system are discussed. The problems encountered in the first generation system are considered. Design and performance of the first generation 3F to 3F power converter system and field oriented induction moter drive based upon a 3 kVA, 20 kHz parallel resonant HF AC link are described. Low harmonic current at the input and output, unity power factor operation of input, and bidirectional flow capability of the system are shown via both computer and experimental results. The work completed on the construction and testing of the second generation converter and field oriented induction motor drive based upon specifications for a 10 hp squirrel cage dynamometer and a 20 kHz parallel resonant HF AC link is discussed. The induction machine is designed to deliver 10 hp or 7.46 kW when operated as an AC-dynamo with power fed back to the source through the converter. Results presented reveal that the proposed power level requires additional energy storage elements to overcome difficulties with a peak link voltage variation problem that limits reaching to the desired power level. The power level test of the second generation converter after the addition of extra energy storage elements to the HF link are described. The importance of the source voltage level to achieve a better current regulation for the source side PDMC is also briefly discussed. The power levels achieved in the motoring mode of operation show that the proposed power levels achieved in the generating mode of operation can also be easily achieved provided that no mechanical speed limitation were present to drive the induction machine at the proposed power level

COPD: The end of the beginning

Richard Russell, Dave Singh, Irfan Rahman and Alan J Crocketthttp://www.dovepress.com/editorial-copd-the-end-of-the-beginning--free-paper-peer-reviewed-article-COPD-recommendation

IMPLEMENTASI KOMPENSASI, BUDAYA ORGANISASI DAN LINGKUNGAN KERJA TERHADAP KINERJA KARYAWAN DENGAN KEPUASAN KERJA SEBAGAI VARIABEL INTERVENING

Masalah utama dalam kinerja karyawan pada karyawan UMKM Penyamakan Kulit Sukaregang Kab. Garut adalah ketika karyawan merasa tidak ada perhatian khusus yang memungkinkan perusahaan untuk berinovasi dalam kemajuan sehingga perusahaan sulit memperhatikan beragam aspek seperti sulitnya kompensasi yang sesuai dengan ketentuan pemerintah, budaya organisasi yang cenderung sulit berubah dengan lingkungan kerja yang kurang saling mendukung untuk kemajuan bersama antara atasan atau rekan kerja sehingga berdampak pada kepuasan dan kinerja pegawai. Adapun populasi pada penelitian ini sebanyak 981 orang karyawan UKM Penyamakan Kulit Sukaregang. Hasil dari penelitian ini Kompensasi secara tidak langsung berdampak positif dan signifikan terhadap produktivitas karyawan melalui peningkatan kepuasan kerja pada karyawan UKM Penyamakan Kulit Sukaregang Kab. Garut. Budaya organisasi memiliki pengaruh tidak langsung yang positif dan signifikan terhadap kinerja karyawan melalui kepuasan kerja pada karyawan UKM Penyamakan Kulit Sukaregang Kab. Garut. Secara tidak langsung lingkungan kerja tidak berpengaruh terhadap kinerja karyawan melalui kepuasan kerja pada karyawan UKM Penyamakan Kulit Sukaregang Kab. Garut.Kata Kunci: Budaya Organisasi, Kompensasi, Kepuasan Kerja, Kinerja, Lingkungan Kerja

Impact of Hurricane Harvey on Healthcare Utilization and Emergency Department Operations

Introduction: Hurricanes have increased in severity over the past 35 years, and climate change has led to an increased frequency of catastrophic flooding. The impact of floods on emergency department (ED) operations and patient health has not been well studied. We sought to detail challenges and lessons learned from the severe weather event caused by Hurricane Harvey in Houston, Texas, in August 2017.Methods: This report combines narrative data from interviews with retrospective data on patient volumes, mode of arrival, and ED lengths of stay (LOS). We compared the five-week peri-storm period for the 2017 hurricane to similar periods in 2015 and 2016.Results: For five days, flooding limited access to the hospital, with a consequent negative impact on provider staffing availability, disposition and transfer processes, and resource consumption. Interruption of patient transfer capabilities threatened patient safety, but flexibility of operations prevented poor outcomes. The total ED patient census for the study period decreased in 2017 (7062 patients) compared to 2015 (7665 patients) and 2016 (7770) patients). Over the five-week study period, the arrival-by-ambulance rate was 12.45% in 2017 compared to 10.1% in 2016 (p < 0.0001) and 13.7% in 2015 (p < 0.0001). The median ED length of stay (LOS) in minutes for admitted patients was 976 minutes in 2015 (p < 0.0001) compared to 723 minutes in 2016 and 591 in 2017 (p < 0.0001). For discharged patients, median ED LOS was 336 minutes in 2016 compared to 356 in 2015 (p < 0.0001) and 261 in 2017 (p < 0.0001). Median boarding time for admitted ED patients was 284 minutes in 2016 compared to 470 in 2015 (p < 0.0001) and 234.5 in 2017 (p < 0.001). Water damage resulted in a loss of 133 of 179 inpatient beds (74%). Rapid and dynamic ED process changes were made to share ED beds with admitted patients and to maximize transfers post-flooding to decrease ED boarding times.Conclusion: A number of pre-storm preparations could have allowed for smoother and safer ride-out functioning for both hospital personnel and patients. These measures include surplus provisioning of staff and supplies to account for limited facility access. During a disaster, innovative flexibility of both ED and hospital operations may be critical when disposition and transfer capibilities or bedding capacity are compromised

Exploring children's physical activity behaviours according to location: A mixed-methods case study

The school environment is ideally placed to facilitate physical activity (PA) with numerous windows of opportunity from break and lunch times, to lesson times and extracurricular clubs. However, little is known about how children interact with the school environment to engage in PA and the other locations they visit daily, including time spent outside of the school environment i.e., evening and weekend locations. Moreover, there has been little research incorporating a mixed-methods approach that captures children's voices alongside objectively tracking children's PA patterns. The aim of this study was to explore children's PA behaviours according to different locations. Sixty children (29 boys, 31 girls)-35 key stage 2 (aged 9-11) and 25 key stage 3 (aged 11-13)-wore an integrated global positioning systems (GPS) and heart rate (HR) monitor over four consecutive days. A subsample of children (n = 32) were invited to take part in one of six focus groups to further explore PA behaviours and identify barriers and facilitators to PA. Children also completed a PA diary. The KS2 children spent significantly more time outdoors than KS3 children (p = 0.009). Boys engaged in more light PA (LPA) when on foot and in school, compared with girls (p = 0.003). KS3 children engaged in significantly more moderate PA (MPA) at school than KS2 children (p = 0.006). Focus groups revealed fun, enjoyment, friends, and family to be associated with PA, and technology, costs, and weather to be barriers to PA. This mixed methodological study highlights differences in the PA patterns and perceptions of children according to age and gender. Future studies should utilize a multi-method approach to gain a greater insight into children's PA patterns and inform future health policies that differentiate among a range of demographic groups of children.Published versio

Pelaksanaan tata kelola dan inventarisasi kendaraan Dinas berdasarkan Pasal 6 Peraturan Daerah no. 3 tahun 2017 tentang Pengelolaan Barang Milik Daerah di Kabupaten Bandung tahun 2018-2019 perspektif Siyasah Dusturiyah

Penelitian ini dilatarbelakangi oleh adanya Peraturan Daerah Kabupaten Bandung Nomor 3 Tahun 2017 Tentang Pengelolaan Barang Milik Daerah. Berdasarkan data yang peneliti dapatkan, pelaksanaan pasal 6 ayat 3 poin c. d, dan e mengenai tata kelola dan inventarisasi kendaraan dinas operasional, dalam proses pelaksanaan pengelolaannya yang dilakukan oleh sebagian OPD belum sepenuhnya sesuai sebagaimana mestinya berdasarkan Pasal 6 Ayat 3 Point c, d dan e. Penelitian ini bertujuan untuk mengetahui: Pertama, mendeskripsikan dan menganalisis proses pengelolaan barang milik daerah berupa kendaraan dinas operasional berdasarkan pasal 6 ayat 3 poin c, d dan e Perda No. 3 Tahun 2017 Tentang Pengelolaan Barang Milik Daerah, Kedua, untuk mengetahui hambatan dan upaya yang dilakukan oleh badan keuangan dan aset daerah dalam proses pengelolaannya, Ketiga, untuk menjelaskan perspektif siyasah dusturiyah terhadap pelaksanaan kebijakan pasal 6 ayat 3 poin c,d,e Perda Nomor 3 Tahun 2017 Tentang Pengelolaan Barang Milik. Teori dalam penelitian ini, yakni: 1) Teori Implementasi Kebijakan menurut Abdullah Syukur. 2) Prinsip-prinsip Siyasah Dusturiyah yang meliputi Prinsip Asas Legalitas, Pemerintahan yang baik, Teori Amanah dan Musyawarah serta prinsip tanggung jawab negara. 3) Teori Tujuan Negara menurut Al-Mawardi mengenai Regulasi aktivitas sosial, ekonomi, politik, hukum dan militer, 4) Teori Kewajiban Negara menurut Ash-Shadr mengenai Tiga Konsep Dasar Kewajiban Negara, diantaranya, Penyelenggaraan Pemerintahan yang Efektif, Pemeliharaan Hak Rakyat dan Pengelolaan Keuangan Publik. Metode yang digunakan adalah dekriptif analisis dengan pendekatan yuridis empiris. Deskriptif analisis ialah penulis menguraikan terlebih dahulu pembahasan terkait masalah yang akan diteliti lalu menganalisisnya menggunakan teori, sedangkan yuridis empirik penulis mengambil sudut pandang terhadap hukum yang berlaku secara normative dan melihat realitas yang sebenarnya dari perilaku manusia. Hasil dari penelitian ini ditemukan bahwa: Pertama, proses pelaksanaan pengelolaan kendaraan dinas operasional yang belum sesuai dengan ketentuan peraturan perundang-undangan yang berlaku, Kedua, hambatan dalam proses pelaksanaan pengelolaan barang milik daerah diantaranya, SDM yang kurang terlatih, komunikasi yang kurang efektif, ego sektoral diantara OPD serta kendaraan yang dikuasai oleh pihak lain, Ketiga, perspektif siyasah dusturiyah mengenai lahirnya kebijakan ini sudah sesuai dengan prinsip-prinsip siyasah dusturiyah, namun dalam pelaksanaannya masih ditemukan ketidaksesuaian dengan beberapa prinsip-prinsip siyasah dusturiyah dan teori tujuan negara serta teori kewajiban negara dalam menjalankan pemerintahan yang baik. Pemerintah sebagai pelaksana kebijakan haruslah mampu menjalankan tupoksinya dengan benar serta memiliki integritas

Synthesis and Characterization of Photonic Materals Sio2

Synthesis and characterization of photonic material SiO2 has been carried out. The aplication of photonic materials in the microelectronics field are promising the data transmission by using opticalwave which can reduce the resistancy significantly. By using the photonic materials, fast signal processing could be achieved and the use of power supply could be decreased. The material was prepared by Stober process which characterized by The X-Ray Diffraction and Scanning Electron Microscope (SEM). The X-Ray Diffraction and SEM characterization showed that the SiO2 in the form of amorf structure and the shape of particle is sphere with the size about 350 nm

Tracking children’s physical activity patterns across the school year: a mixed-methods longitudinal case study

© 2020 The Authors. Published by MDPI. This is an open access article available under a Creative Commons licence. The published version can be accessed at the following link on the publisher’s website: https://doi.org/10.3390/children7100178Despite the breadth of health benefits associated with regular physical activity (PA), many children in the UK are not sufficiently active enough to meet health guidelines, and tend to become less active as they mature into and throughout adolescence. Research has indicated that children’s school, home and neighbourhood environments can all significantly influence their opportunities to engage in moderate-to-vigorous physical activity (MVPA). However, less is known about how children’s MVPA patterns within these key environments may change across the school year. The current mixed-methods case study aims to explore this issue by tracking key stage 2 (KS2) and key stage 3 (KS3) children’s MVPA patterns across the school year. Fifty-eight children (29 boys, 29 girls, KS2 = 34, KS3 = 24) wore an integrated global positioning systems (GPS) and heart rate (HR) monitor over four consecutive days in the first term of school (autumn), before these measurements were repeated in the two remaining school terms (winter–summer). A subsample of children (n = 6–8 per group) were invited to take part in one of six focus groups each term to further explore their PA behaviours and identify the barriers and facilitators to PA. The children’s MVPA was significantly lower (p = 0.046) in term 2 (winter/spring term) than during the warmer terms (autumn and summer). All the locations showed reductions in MVPA in term 2, except indoor MVPA, which increased, and MVPA on foot in the neighbourhood, which remained consistent. Focus groups revealed location, friends, and the variety of options to be associated with MVPA, and poor weather, parental permission, and time limitations to be barriers to MVPA. This mixed-methodological, repeated-measures design study highlights differences in the activity patterns and perceptions of children over the school year. Future studies should implement longitudinal, multi-method approaches to gain deeper insight into how children’s PA behaviours differ over time. Consequently, this can inform future health policies promoting children’s PA throughout the year.Published onlin

Pembuatan Batik Dengan Teknik Pewarnaan Colet Sebagai Upaya Pelestarian Budaya dan Pemberdayaan Masyarakat

Batik comes from the root word 'tik' which means dot. Basically, batik means dotted, while batik means to make dots. In Javanese, dots are called cecek, which is an important part of batik. Batik is an intangible cultural heritage that has been designated by UNESCO since 2009. Therefore, efforts are needed to develop batik in people's lives. One effort that can be made to preserve culture is to modify and maintain the existence of that culture. The aim of this batik training is to improve the economy of the Dukuh Simo community because in the batik training the training participants directly practice how to make batik using the dabbing technique. This training directly involved the Dukuh Simo community, consisting of PKK women. In this research the author used a qualitative descriptive approach. Data collection techniques used are observation, interviews, and documentation. It is hoped that the results of this research will increase the knowledge and economy of residents and ensure that batik remains a culture that has been preserved for generations