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Burnout Syndrome analysis among hospital nurses using Maslach Burnout Inventory - Human Service Survey (MBI-HSS): a case study

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IOP Conference Series: Materials Science and engineering 2020年第1期931卷

作者： F Erwan M Iqbal I Hasanuddin S Zuhri C M Maydini Industrial Engineering Department Universitas Syiah Kuala Darussalam Banda Aceh Indonesia Work System Design and Ergonomics Laboratory Industrial Engineering Study Program Universitas Syiah Kuala Darussalam Banda Aceh Indonesia Department of Mechanical and Industrial Engineering Universitas Syiah Kuala Darussalam Banda Aceh Indonesia

Burnout is a psychology syndrome which experienced by any professions throughout their careers. This study analyses burnout syndrome encountered by hospitals' nurses based on the Maslach Burnout Inventory-Human Service Survey (MBI-HSS) and provides findings by looking at the dimension of burnout and demographic factors which consist of sex, age, marital status, level of education, years of career, and duty station. This study reveals that; the overall value of burnout experienced by hospitals' nurses is categorized into level 1 with the highest value presented by dimension 1 (physical exhaustion), and burnout generally experienced by man, nurses younger than 30 years old, married nurses, lower degree nurses, nurses whose less than 20 years in career, and nurses whose responsible in terminal care and emergency unit. In addition, data obtained from the survey is utilized to determine burnout causative factors using fishbone and pareto diagram.

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Casting and Welding of Aluminium Matrix Composite Materials Reinforced by SiC Particles 3

Casting and Welding of Aluminium Matrix Composite Materials ...

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3rd Annual Applied Science and engineering Conference, AASEC 2018

作者： Tjahjanti, P.H. Hermansyah, F. Prasetya, L.H. Sulistyanto, M.P.T. Department of Mechanical Engineering Universitas Muhammadiyah Sidoarjo Kampus 2 Jalan Raya Gelam Nomer 250 Candi Sidoarjo Jawa Timur Indonesia Informatics Study Program Universitas Kanjuruan Malang Jalan S. Supriadi no.48 Malang Jawa Timur Indonesia

Aluminium casting is often done, but for the casting of composite materials base on aluminium is very rare. The purpose of this research is make composite material based on aluminium reinforced by SiC particles by casting. This research method use three different casting molds that are permanent cast, ceramic (chamotte sand / Al2O3-SiO2) molds and sand molds. The best casting product that has a small porosity is the AlMg10Si make of permanent molding. The small porosity effect causes the AlMg10Si material to become harder. The oxy-acetylene welding results show that the AlMg10Si + composite material reinforced by 15% SiC particles, has a fine discontinuity when the liquid penetrant test, which means that very small cracks occur, and potholes result from casting. This composite material has enormous energy to break is 0.94 Joule at impact test. © Published under licence by IOP Publishing Ltd.

关键词： Molds

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Energy optimization and gas removal selection of geothermal power plant

Energy optimization and gas removal selection of geothermal ...

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2017 International Conference on Sustainable Energy engineering and Application, ICSEEA 2017

作者： Manahan Sinaga, R.H. Darmanto, Prihadi Setyo Trirakhmadi, Andy Engineering Management Study Program Del Institute of Technology Laguboti North Sumatera Indonesia Mechanical Engineering Study Program Bandung Institute of Technology Bandung West Java Indonesia Bioprocess Engineering Study Program Del Institute of Technology Laguboti North Sumatera Indonesia

ISBN: (纸本)9781538617656

Non-condensable gas (NCG) is a part of geothermal fluid that affects geothermal power plant performance. Two scenarios were proposed to extract NCG out of condenser;i.e two-stage steam jet ejector (SJE) intercondenser plus one-stage SJE after condenser (three-stage SJE) and hybrid (combination of two-stage SJE intercondenser and vacuum pump). Both scenarios were optimized by the installation of Variable Frequency Drive (VFD) to hot well pump and cooling tower fan, respectively. Each scenario was analyzed to the wet bulb temperature (WBT) fluctuation. This study modeled the data of Darajat Geothermal Power Plant unit III on load 100% (110 MW) and computed it using engineering Equation Solver commercial version 9.430. The consideration of both scenarios was analyzed by Specific Steam Consumption net. The result of this study indicated that hybrid system can save 1.11% energy compared with three-stage SJE. It is also found that hybrid system had a possibility to optimize by VFD installation when WBT in 15.5 °C up to 19.5 °C. The highest energy saving was obtained 1.03% compared to constant L/G, on WBT 19.5 °C, where L/G denotes the ratio of inlet water mass flow rate to cooling air inside cooling tower. © 2017 IEEE.

关键词： Hybrid systems

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The effects of magnesium sulphate addition into foaming agents resulted from palm oil fatty acid saponification in the performance of peat fire suppression

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IOP Conference Series: Earth and Environmental Science 2020年第1期460卷

作者： P Subekti E Hambali A Suryani P Suryadarma B H Saharjo M Rivai Post Graduate Student Study Program Agroindustrial Technology IPB University Bogor Indonesia Study Program of Mechanical Engineering Pasir Pengaraian University Regency of Rokan Hulu Riau Indonesia Department of Agroindustrial Technology IPB University Bogor Indonesia Surfactant and Bioenergy Research Center IPB University Bogor Indonesia Forest Fire Laboratory Division of Forest Protection Department of Silviculture IPB University Bogor Indonesia

The utilization of foaming agents resulted from the saponification of palm oil fatty acids as foam concentrate on peat fire suppression leads to less water use and a shorter time compared to the use of peat water only. The development of foaming agents for a peat fire extinguisher, including the addition of 0.2% magnesium sulfate (MgSO4), was further conducted in order to improve the performance of the liquid foam. This study aims to determine the performance of the developed foaming agent (FAP-MS) applied in peat fire suppression. In order to assess the performance of FAP-MS, two controls namely palm fatty acid-based foaming agent without the addition of magnesium sulfate (FAP) and peat water with no mixture of foaming agents were used. Results showed that the durability of foam produced from the peat water solution mixed with FAP-MS was lower than the foam produced from the peat water solution mixed with FAP. The addition of FAP-MS into peat water solution was found to reduce the use of water by 27% and the addition of FAP reduced it further by 35%. However, compared to peat water with no foaming agent addition, FAP-MS and FAP additions were able to suppression peat fires faster by 79% and 65%, respectively.

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Design of 270 CC T2 gas capacity converter

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IOP Conference Series: Materials Science and engineering 2019年第1期674卷

作者： F Azarul M D Trisno D Dahlan Mechanical Engineering Study Program STT Muhamadyah Cileungsi-Bogor Jalan Anggrek No. 25 Perum. PTSC Cileungsi Village Kec. Cileungsi Bogor Cileungsi Bogor West Java 16820 Indonesia Mechanical Engineering Study Program Faculty of Industrial Technology - ISTN Jl. Moh. Kahfi II Jagakarsa Jakarta 12640 Indonesia Mechanical Engineering Study Program Faculty of Engineering - Universita Pancasila Srengseng Sawah Jagakarsa Jakarta 12640 Indonesia

Fuel motor is a machine that converts chemical energy into mechanical energy. In the design of this approach, we look for a gas converter model in accordance with its capacity according to the volume of the cylinder used, where the thing that needs to be considered is the performance of the gas converter itself, namely from the art form/model, fuel efficiency and large pressure settings. gas supply that enters the combustion chamber. The GX270 general motor is a fuel motor engine used as a test tool. The design was carried out at the STT Muhamadyah Cielungsi mechanical engineering energy conversion laboratory. To understand the variables that affect performance, in making this converter, things that need to be considered are variations in rotation and variations in load. From the design of the gas converter, the results of the design calculation are as follows: T torque = 19.12 (Nm), effective power Ne = 5.003066667 (kW), average effective pressure Pe = 889.4340741 (kPa), total usage hourly fuel mf = 0.0675 (kG / hour), specific fuel consumption Be = 0.013491725 (kg / kN.m), fuel ratio with air F / A = 0.13781, ideal air mass flow rate mv = 0,0,001138242 (m3 / s), volumetric efficiency 843,30666 (%) and thermal efficiency 15,78 (%), the greater the engine rotation used, the more fuel level will be consumed, as well with effective engine power.

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Retraction notice to "Pyrolysis: An effective technique for degradation of COVID-19 medical wastes" [Chemosphere 275 (2021) 130092]

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Chemosphere 2025年 370卷 143824页

作者： Selvakumar Dharmaraj Veeramuthu Ashokkumar Rajesh Pandiyan Heli Siti Halimatul Munawaroh Kit Wayne Chew Wei-Hsin Chen Chawalit Ngamcharussrivichai (Deemed to be University) Chennai 603112 Tamil Nadu India. Center of Excellence in Catalysis for Bioenergy and Renewable Chemicals (CBRC) Faculty of Science Chulalongkorn University Bangkok 10330 Thailand. Department of Biochemistry Karpagam Academy of Higher Education (formerly Karpagam University) Pollachi Main Road Eachanari Post Coimbatore Tamil Nadu India. Chemistry Study Program Department of Chemistry Education Faculty of Mathematics and Science Education Universitas Pendidikan Indonesia Jl. Dr. Setiabudhi 229 Bandung 40154 Indonesia. School of Energy and Chemical Engineering Xiamen University Malaysia Jalan Sunsuria Bandar Sunsuria 43900 Sepang Selangor Malaysia College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Fujian China. Department of Aeronautics and Astronautics National Cheng Kung University Tainan 701 Taiwan Research Center for Smart Sustainable Circular Economy Tunghai University Taichung 407 Taiwan Department of Mechanical Engineering National Chin-Yi University of Technology Taichung 411 Taiwan. Center of Excellence in Catalysis for Bioenergy and Renewable Chemicals (CBRC) Faculty of Science Chulalongkorn University Bangkok 10330 Thailand Center of Excellence on Petrochemical and Materials Technology (PETROMAT) Chulalongkorn University Pathumwan Bangkok 10330 Thailand.

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The Development Mechanism of Microcontroller-Based Water Level and Temperature Control

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IOP Conference Series: Materials Science and engineering 2019年第1期619卷

作者： S Ka'ka R Tandioga Lewi A K Muhammad A Rahman A Taufik Mechatronics Study Program Mechanical Engineering Department Ujung Pandang State Polytechnic 90245 Makassar South Sulawesi Indonesia

The development of Microcontroller-Based Water Level and Temperature Control is the development of Microcontroller-Based Water Level Control Design. This equipment is a tool that can be used to monitor and control the level and temperature of water. The aim of this research is to make a water level and temperature control device based on microcontroller, and to display the information of water level and temperature on the computer. The research methods used during the implementation process of this research are : literature study, hardware and software design, and data retrieval. The Microcontroller-based Water Level and Temperature Control uses two sensors, namely : ultrasonic sensor to detect water level, then the second sensor is a thermocouple sensor which is used to detect water temperature. This equipment uses a water pump to flow water from one tank to another, and the heater that used to heat water. The device has 2 buttons, where the first button is used to control the water level, and the second button is used to control the level and temperature of the water. Based on the results of the study it can be concluded that this water level and temperature control system works well as expected, where this equipment uses a multi position control system mode that has been programmed in the Arduino software and can display sensor readings in the form graphs using matlab software.

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Steady Rayleigh-BénardRayleigh-Bénard convection between stress-free boundaries

arXiv

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arXiv 2020年

作者： Wen, Baole Goluskin, David LeDuc, Matthew Chini, Gregory P. Doering, Charles R. Department of Mathematics University of Michigan Ann ArborMI48109-1043 United States Department of Mathematics & Statistics University of Victoria VictoriaBCV8P 5C2 Canada Department of Physics University of Michigan Ann ArborMI48109-1040 United States Program in Integrated Applied Mathematics University of New Hampshire DurhamNH03824 United States Department of Mechanical Engineering University of New Hampshire DurhamNH03824 United States Center for the Study of Complex Systems University of Michigan Ann ArborMI48109-1042 United States

Steady two-dimensional Rayleigh-Bénard convection between stress-free isothermal boundaries is studied via numerical computations. We explore properties of steady convective rolls with aspect ratios π/5 ⩽ Γ ⩽ 4π, where Γ is the width-to-height ratio for a pair of counter-rotating rolls, over eight orders of magnitude in the Rayleigh number, 103 ⩽ Ra ⩽ 1011, and four orders of magnitude in the Prandtl number, 10−2 ⩽ Pr ⩽ 102. At large Ra where steady rolls are dynamically unstable, the computed rolls display Ra → ∞ asymptotic scaling. In this regime, the Nusselt number Nu that measures heat transport scales as Ra1/3 uniformly in Pr. The prefactor of this scaling depends on Γ and is largest at Γ ≈ 1.9. The Reynolds number Re for large-Ra rolls scales as Pr−1Ra2/3 with a prefactor that is largest at Γ ≈ 4.5. All of these large-Ra features agree quantitatively with the semi-analytical asymptotic solutions constructed by Chini & Cox (2009). Convergence of Nu and Re to their asymptotic scalings occurs more slowly when Pr is larger and when Γ is smaller. Copyright © 2020, The Authors. All rights reserved.

关键词： Prandtl number

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Additive nanomanufacturing of lab-on-a-chip fluorescent peptide nanoparticle arrays for Alzheimer＇s disease diagnosis

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Bio-Design and Manufacturing 2018年第3期1卷 182-194页

作者： Leming Sun Zhen Fan Tao Yues Jun Yin Jianzhong FU Mingjun Zhang Department of Biomedical Engineering College ofEngineering Ohio State University Columbus OH 43210USA School of Life Sciences Northwestern PolytechnicalUniversity Xi'an 710072 Shaanxi China Department of Polymeric Materials School of MaterialScience and Engineering Tongji UniversityShanghai 201804 China Institute for Advanced Study TongjiUniversity Shanghai 200092 China School of Mechatronic Engineering and Automation Shanghai University Shanghai 200444 China The State Key Laboratory of Fluid Power and Mechatronic Systems School of Mechanical Engineering ZhejiangUniversity Hangzhou 310028 China Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province School of Mechanical EngineeringZhejiang University Hangzhou 310028 China Dorothy M. Davis Heart & Lung Research Institute The OhioState University Wexner Medical Center Columbus OH43210 USA Interdisciplinary Biophysics Graduate Program Ohio StateUniversity Columbus OH 43210 USA

This paper proposes an additive nanomanufacturing approach to fabricate a personalized lab-on-a-chip fluorescent peptide nanoparticles （f-PNPs） array for simultaneous multi-biomarker detection that can be used in Alzheimer＇s disease （AD） diagnosis. We will discuss optimization techniques for the additive nanomanufacturing process in terms of reliability, yield and manufacturing efficiency. One contribution of this paper lies in utilization of additive nanomanufacturing techniques to fabricate a patient-specific customize-designed lab-on-a-chip device for personalized AD diagnosis, which remains a major challenge for biomedical engineering. Through the integrated bio-design and bio-manufacturing process, doctor＇s check- up and computer-aided customized design are integrated into the lab-on-a-chip array for patient-specific AD diagnosis. In addition, f-PNPs with targeting moieties for personalized AD biomarkers will be self-assembled onto the customized lab-on-a- chip through the additive nanomanufacturing process, which has not been done before. Another contribution of this research is the personalized lab-on-a-chip f-PNPs array for AD diagnosis utilizing limited human blood. Blood-based AD assessment has been described as ＂the holy grail＂ of early AD detection. This research created the computer-aided design, fabrication through additive nanomanufacturing, and validation of the f-PNPs array for AD diagnosis. This is a highly interdisciplinary research contributing to nanotechnology, biomaterials, and biomedical engineering for neurodegenerative disease. The conceptual work is preliminary with intent to introduce novel techniques to the application. Large-scale manufacturing based on the proposed framework requires extensive validation and optimization.

关键词： Nanomanufacturing Lab-on-a-chip Fluorescent peptide nanoparticle Alzheimer＇s disease Diagnosis

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Complete mitochondrial genome ofPenaeus acehensis(Crustacea, Decapoda, Penaeidae) from Aceh province, Indonesia

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Mitochondrial DNA Part B 2018年第2期3卷 898-899页

作者： Sinar Pagi Sektiana M. Tahang Sapto Andriyono Jobaidul Alam Hyun-Woo Kim Interdisciplinary Program of Biomedical Mechanical and Electrical Engineering Pukyong National University Busan Republic of KoreaAquaculture Technology Study Program Sekolah Tinggi Perikanan Jakarta Indonesia Brackishwater Aquaculture Development Center Aceh Indonesia Interdisciplinary Program of Biomedical Mechanical and Electrical Engineering Pukyong National University Busan Republic of KoreaFisheries and Marine Faculty Universitas Airlangga Surabaya Indonesia Interdisciplinary Program of Biomedical Mechanical and Electrical Engineering Pukyong National University Busan Republic of Korea Interdisciplinary Program of Biomedical Mechanical and Electrical Engineering Pukyong National University Busan Republic of KoreaDepartment of Marine Biology Pukyong National University Busan Republic of Korea

Penaeid shrimps are widely distributed from Indian to western Pacific Oceans and some which are economically important. In this study, we reported full mitochondrial genome of an endemic shrimp species,Penaeus acehensis, which inhabits exclusively in the coastal water of Aceh, Indonesia. Full length of circular mitogenome ofP. acehensiswas 15,991 bp in length, which contained 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, and a control region. Start codons of all protein-coding genes were ATN except for COX1 in which ACG was used. Incomplete stop codon (T- -) was found in five genes including COX2, COX3, NAD5, NAD4, and NAD4L. Among its relatives,P. acehensiswas most closely related toPenaeus monodonshowing 89% sequence identity in its mitogenome, which was corresponding to morphological analysis. Phylogenetic tree result showed thatP. acehensiswas clustered together with those were distributed in Indo-West Pacific region (clade II), which is distinct from Eastern Pacific region (clade I).

关键词： Mitogenome Dendrobranchiata next-generation sequencing shrimp Indonesia

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