15 research outputs found

    The Effect of Carbon Nanotube Composite Addition on Biomass-Based Supercapacitor

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    Electric vehicles are set to become a most attractive alternative transportation mode due to their high efficiency and low emission. Electric vehicles require an efficient energy storage system, e.g. a supercapacitor. Coconut shells have high lignocellulosic content and are not being fully utilized in Indonesia. The lignocellulose could be converted into activated carbon for use as the electrode on a hybrid supercapacitor. This research focused on studying the effect of the addition of carbon nanotube (CNT) composite to porous graphene-like nanosheets (PGNS) as the electrode on a hybrid supercapacitor. The PGNS and CNT composite were synthesized via simultaneous activation and carbonization. Nickel oxide was used as the counter electrode. The CNT composite had a large surface area of 1374.8 m2g-1, pore volume of 1.1 cm3g, and pore size of 3.2 nm. On the other hand, the PGNS had a surface area of 666.1 m2g-1, pore volume of 0.47 cm3g, and pore size of 2.8 nm. The electrode pair between the NiO and the activated carbon achieved 5.69 F/g and 94.1% cycle durability after 10 charging and discharging cycles. The composite had an energy density of 0.38 W h kg-1. The aim of this research was to provide an alternative formula for producing high-performance supercapacitor materials

    Support and Assessment for Fall Emergency Referrals (SAFER 1) trial protocol. Computerised on-scene decision support for emergency ambulance staff to assess and plan care for older people who have fallen: evaluation of costs and benefits using a pragmatic cluster randomised trial

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    Background: Many emergency ambulance calls are for older people who have fallen. As half of them are left at home, a community-based response may often be more appropriate than hospital attendance. The SAFER 1 trial will assess the costs and benefits of a new healthcare technology - hand-held computers with computerised clinical decision support (CCDS) software - to help paramedics decide who needs hospital attendance, and who can be safely left at home with referral to community falls services. Methods/Design: Pragmatic cluster randomised trial with a qualitative component. We shall allocate 72 paramedics ('clusters') at random between receiving the intervention and a control group delivering care as usual, of whom we expect 60 to complete the trial. Patients are eligible if they are aged 65 or older, live in the study area but not in residential care, and are attended by a study paramedic following an emergency call for a fall. Seven to 10 days after the index fall we shall offer patients the opportunity to opt out of further follow up. Continuing participants will receive questionnaires after one and 6 months, and we shall monitor their routine clinical data for 6 months. We shall interview 20 of these patients in depth. We shall conduct focus groups or semi-structured interviews with paramedics and other stakeholders. The primary outcome is the interval to the first subsequent reported fall (or death). We shall analyse this and other measures of outcome, process and cost by 'intention to treat'. We shall analyse qualitative data thematically. Discussion: Since the SAFER 1 trial received funding in August 2006, implementation has come to terms with ambulance service reorganisation and a new national electronic patient record in England. In response to these hurdles the research team has adapted the research design, including aspects of the intervention, to meet the needs of the ambulance services. In conclusion this complex emergency care trial will provide rigorous evidence on the clinical and cost effectiveness of CCDS for paramedics in the care of older people who have fallen

    CURATION AND MANAGEMENT OF CULTURAL HERITAGE THROUGH LIBRARIES

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    Libraries, museums and archives hold valuable collections in a variety of media, presenting a vast body of knowledge rooted in the history of human civilisation. These form the repository of the wisdom of great works by thinkers of past and the present. The holdings of these institutions are priceless heritage of the mankind as they preserve documents, ideas, and the oral and written records. To value the cultural heritage and to care for it as a treasure bequeathed to us by our ancestors is the major responsibility of libraries. The past records constitute a natural resource and are indispensable to the present generation as well as to the generations to come. Libraries preserve the documentary heritage resources for which they are primarily responsible. Any loss of such materials is simply irreplaceable. Therefore, preserving this intellectual, cultural heritage becomes not only the academic commitment but also the moral responsibility of the librarians/information scientists, who are in charge of these repositories. The high quality of the papers and the discussion represent the thinking and experience of experts in their particular fields. The contributed papers also relate to the methodology used in libraries in Asia to provide access to manuscripts and cultural heritage. The volume discusses best practices in Knowledge preservation and how to collaborate and preserve the culture. The book also deals with manuscript and archives issues in the digital era. The approach of this book is concise, comprehensively, covering all major aspects of preservation and conservation through libraries. The readership of the book is not just limited to library and information science professionals, but also for those involved in conservation, preservation, restoration or other related disciplines. The book will be useful for librarians, archivists and conservators. We thank the Sunan Kalijaga University, Special Libraries Association- Asian Chapter for their trust and their constant support, all the contributors for their submissions, the members of the Local and International Committee for their reviewing effort for making this publication possible

    Pengaruh Struktur Kepemilikan dan Kualitas Audit terhadap Manajemen Laba

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    Earnings management influenced by company's ownership structure and audit quality. This study was made with the aim of empirically proving the effect of ownership structure (managerial ownership, institusional ownership, foreign ownership, and ownership concentration), and audit quality on earnings management, with the addition of profitability and leverage variables as control variables. This study uses quantitative research methods with secondary data collection techniques. The sample collection method in this study used a purposive sampling method with specified criteria. Secondary data for the study was taken from the annual report of manufacturing companies listed on the Indonesia Stock Exchange with the research year 2017 to 2020. The source of secondary data in this study was obtained through www.idx.co.id. This research sample counted 141 companies that meet criteria. Data processing using SPSS application. The analysis technique used is multiple linear regression analysis. Based on the results of the tests and research that have been described, it is concluded that there is a significant negative effect between the variables of institutional ownership, ownership concentration and audit quality on earnings management. Managerial ownership and foreign ownership variables have no significant effect on earnings management. Of the two control variables used in this study, only leverage has a negative effect on earnings management, while profitability does not affect earnings management. The R-Squared value of 52% can be explained by the variables contained in this study, while the remaining 48% is influenced by factors not explained in this study

    Perencanaan Tahapan Pembangunan Fasilitas Terminal 3 Juanda Berdasarkan Pertumbuhan Penumpang

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    Dengan adanya pertumbuhan penduduk, perkembangan ekonomi, dan pengaruh dari ASEAN Open Sky di Indonesia, penggunaan pesawat terbang sebagai alat transportasi semakin banyak digunakan. Peningkatan demand ini merupakan pemicu dibangunnya terminal baru di Bandar Udara Juanda. Proses perencanaan dimulai dengan peramalan jumlah penumpang, untuk mengetahui pada tahun berapa jumlah penumpang mencapai 75 juta di terminal baru dan jumlah pergerakan pesawat pada tahun tersebut. Setelah itu akan dilanjutkan dengan menghitung luas ruang terminal, luas apron dan luas parkir dengan menggunakan perhitungan luas standar SNI 03-7046-2004. Setelah diketahui perkiraan tahun pembangunannya melalui peramalan, maka akan direncanakan pentahapan pembangunan terminal 3 Bandara Juanda sesuai dengan pertumbuhan penumpang pada peramalan tersebut. Peramalan dilakukan menggunakan software SPSS dan Minitab untuk mencari model ARIMA. Dengan menggunakan pemodelan ARIMA tersebut, diketahui bahwa penumpang Terminal 3 Bandara Juanda akan mencapai 75 juta pada tahun 2029. Pentahapan terminal akan dimulai pada tahun 2017 dengan pengerjaan prioritas nya adalah membangun gedung terminal, runway 1, apron grup 1, dan kantor-kantor operasional agar terminal dapat digunakan secepat mungkin. Pada tahun 2019 penerbangan domestik akan dibuka guna menanggulangi overcapacity pada Bandara Juanda. Pembangunan runway 2 dan gedung terminal bagian 2, dilakukan pada tahun 2019 hingga pada tahun 2022 penerbangan Internasional juga dapat dibuka. Akses menuju terminal yaitu pembangunan rel kereta diprioritaskan dan dimulai tahun 2022 hingga 2024. Pembangunan fasilitas arsitektur dilakukan dari tahun 2023 hingga tahun 2029 dan seluruh pembangunan sudah harus selesai pada tahun tersebut

    Nickel in Buli Coastal Area, East Halmahera

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    Analisis XRF mendapatkan nikel dalam sedimen dasar laut dengan kandungan 0,0140 hingga 0,793%, kromit 0,0179 hingga 0,1128% dan besi 1,2 hingga 6,85%. Sebaran nikel di perairan pantai dikontrol oleh gelombang lokal yang ditimbulkan oleh gelombang Samudera Pasifik ekuator yang bergerak ke barat. Keterdapatan nikel dalam sedimen dasar laut dapat menjadi riset yang menarik di masa datang
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