检索结果-内蒙古大学图书馆

Performance analysis of ocean water power plant as a renewable power plant for leading regions, outermost areas, underdeveloped region

引用

Journal of Physics: Conference Series 2019年第3期1402卷

作者： M Subekti Electrical Engineering Study Program Engineering Faculty State University of Jakarta Jakarta Indonesia

This research for performance analysis of ocean water power plant to get design optimization based on research scenarios. The method used is experiment, by conducting a prototype analysis of the initial calculations to be included in the modeling simulation. through research scenarios to get the most optimal prototype performance. The results showed that (1) the greater the pontoon volume used, the greater the pontoon force produced, the pontoon force was not affected by the size of the pump diameter. (2) the larger the diameter of the pump used, the greater the discharge of water produced, the water discharge is not affected by the small volume of the pontoon, (3) the magnitude of the lift system to seawater is not affected by the size of the pump diameter but the size of the pontoon volume, the greater the pontoon volume used, the greater the lift power, (4) the greater the pontoon volume used, the turbine power The result will be even greater with the diameter of the pump, the larger the diameter of the pump used, the greater the turbine power produced. From the results of the study, it can be concluded that the optimal size uses 6 pontoons and 12-inch pump diameters. The implications of this research are that in addition to increasing the value of electrification in Leading Regions, Outermost Areas, Underdeveloped Region, it can also improve the economy of the community while helping the government to succeed the National Medium Term Development Plan

关键词：

来源：评论

学校读者我要写书评

暂无评论

Students' Competences in Practicums of Various Competencies in Machining engineering

引用

Journal of Physics: Conference Series 2019年第1期1273卷

作者： Dhany Ardhian Syah Apri Nuryanto Electrical Engineering education Study Program Faculty of Engineering Yogyakarta State University Indonesia

This study aimed at investigating productive practicums of various competencies and the competences of Machining engineering department students of Muhammadiyah 1 Bantul Vocational High School. It is a descriptive study which employed both quantitative and qualitative research designs. The practicums of various competencies consisted of seven stages led by two teachers. Those stages are opening, presenting the introductory theory, demonstrating, conducting productive practicums of various competencies, evaluating, giving feedback, and closing. Based on the data analysis, the percentage of students' response is 70%, and it is categorized as good. The average score of the students' competences is 81.67, and it is also categorized as good. Finally, the percentage of students' activity aspect is 90%, and it is also categorized as very good.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Environmental assessment of a small power plant based on palm kernel shell gasification

引用

AIP Conference Proceedings 2020年第1期2296卷

作者： Muhammad Akvis Fauzi Prabang Setyono Sunu Herwi Pranolo 1Magister Study Program of Environmental Science Postgraduate Universitas Sebelas Maret Jl. Ir. Sutami 36A Surakarta 57126 Indonesia 2Magister Study Program of Chemical Engineering Faculty of Engineering Universitas Sebelas Maret Jl. Ir. Sutami 36A Surakarta 57126 Indonesia

A small power plant based on biomass gasification technology is attractive to provide electricity to many remote areas without fossil fuel access because biomass is locally available and contributes to net-zero carbon emissions in the terms of a greenhouse gas component. Palm kernel shell is a potential biomass in Indonesia to provide energy needs. It is available in scattered areas that are economical for a small-scale power plant operation up to 200 kW. The gasification technology converts the shell into combustible gases, which are also known as producer gases with carbon monoxide and hydrogen as the main components for fuelling a gas generator set resulting in carbon dioxide and water in the flue gas. Although palm kernel shell considered carbon-neutral, a power plant based on biomass gasification also emits CO2 indirectly as a result of the fossil fuel combustion during shell generation in a palm oil mill, handling and transportation from the mill to the power plant. A power plant based on the palm kernel shell gasification system produces greenhouse gases and solid residue as char and tarry components in the producer gas. This assessment examined the global warming potential level of a 5-kW power plant based on palm kernel gasification technology using a Gate-to-Gate approach to develop system improvement scenarios. All carbon dioxide emissions were predicted with an openLCA database of Environmental Footprint (MID-point indicator). The mass and energy balance calculations resulted in the amount of generated char. A laboratory experiment was conducted to observe tar content in the producer gas. It was found that the power plant emits 1.69 kg CO2 eq/kWh, produces 0.33 kg char/kWh and the producer gas contains 2.70 × 10−4 kg tar/kWh. It is recommended that when using palm kernel gasification for electricity generation, plant managers should consider char as a solid conditioner in a palm plantation area and implement a tar removal system to minimize gas genset fa

关键词：

来源：评论

学校读者我要写书评

暂无评论

Student cognitive level achievement in the textile chemistry lesson conducted in a blended learning environment

引用

AIP Conference Proceedings 2021年第1期2331卷

作者： Dewi Suliyanthini Fajar Yulianur Eneng Lutfia Zahra Vivi Radiona Harsuyanti Lubis 1Apparel Design Study Program Faculty of Engineering Universitas Negeri Jakarta Jl. Rawamangun Muka Jakarta Timur 13220 DKI Jakarta Indonesia 2Bina Nusantara University Jl. Pasir Kaliki No.25-27 Bandung Jawa Barat 40181 Indonesia

This study was to identify students’ cognitive level achievement after participating in the Textile Chemistry lesson conducted in a blended learning environment. This study was carried out with a one-group posttest-only design involving 54 undergraduate students of Apparel Design study program Universitas Negeri Jakarta. During the teaching- learning process, the studied group was engaged in teaching-learning activities conducted with various online learning platforms, including LMS Moddle, Youtube, Zoom, and Whatsapp Messenger. At the end of the lesson, the students composed post-experimental reports which were then scored and analysed. The result of this study revealed that in a blended learning environment, 13% students only achieved C3 (applying) with an average score of 71.37, 55.5% students only achieved C4 (analyzing) with an average score of 82.7, and only 31.5% students successfully achieved C5 (synthesizing) with an average score of 88.7.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Hydroxyapatite-gelatin-HPMC composite as injectable bone substitute with alendronate variation for osteoporotic bone

引用

AIP Conference Proceedings 2020年第1期2314卷

作者： Novita Sari Alfian Pramudita Putra Siswanto Muhammad Fajar Faliasthiunus Pradipta Dyah Hikmawati 1Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia 2Biomedical Engineering Study Program Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia

The treatment of bone with osteoporosis could be done by filling the bone defect with Injectable Bone Substitute (IBS). IBS could be functioned as drug delivery system by associating a drug inside the IBS, such as alendronate for osteoporosis case. In this study, IBS has been synthesized and characterized with the alendronate variations. The IBS was synthesized by stirring hydroxyapatite and gelatin 5% (w/v) with a ratio of 45:55. The alendronate was added to the solution with composition of 0%, 5%, 10%, 15% and 20%. The mixture was mixed with 2% (w/v) HPMC. FTIR test results indicated the formation of hydroxyapatite-gelatin bonding (Ca2+--COO−) at wavenumber of 1560.54 cm−1. The acidity test result indicated that the sample had a pH of 7 and was able to remain stable. The IBS could be set in 3 hours and 38 minutes when injected to HA substrate and capable of enveloping the surface of HA substrate. The pore size of the substrate decreased from range of 153 to 625.8 µm into 247.4 to 480.8 µm. The XRD test results indicated that degree of crystallinity decreased from 76.81% to 75.13%. The best alendronate composition in IBS was 10% compared to the mass of hydroxyapatite.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Content design: e-learning module for study on cultural tourism information systems based on local wisdom

引用

Journal of Physics: Conference Series 2020年第1期1516卷

作者： I M Pageh A A J Permana Historical Education Faculty of Law and Social Sciences Ganesha University of Education Singaraja Indonesia Information Technology Department Informatics Management Study Program Faculty of Engineering and Vocational Ganesha University of Education Singaraja Indonesia

Facing the 4.0 industrial revolution, it is necessary to carry out reforms and innovations related to national education. Reforms and innovations in the implementation of components of the education system involve changes in curriculum, graduate competencies and assessments, teacher qualifications, funding, facilities and infrastructure, decentralization and educational autonomy. Bali as a world tourist destination must be maintained and passed on to the younger generation. The younger generation can use information technology to help promote Balinese culture. Bali has a lot of local wisdom that can be implemented in the tourism sector. Therefore to promote those local wisdoms, a module that can be accessed through e-learning is developed to help students develop a cultural tourism package based on local wisdom to be promoted online. The modules developed have been tested by content and media experts, which can be used independently by students. Modules can be accessed online at e-learning and they are ready to use instructions for students so they can work on assignments and projects independently. Modules containing this theory and practice are for making brochures, tour packages, videos, and websites, all of which are connected to promote tourism based on local Balinese wisdom.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Synthesis and characterization of acrylic resin with ultra high molecular weight polyethylene (UHMWPE) addition as dental prosthetic base

引用

AIP Conference Proceedings 2020年第1期2314卷

作者： Prihartini Widiyanti Siswanto Ika Fauziyatus Silfiana 1Biomedical Engineering Study Program Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia 2Departement of Physics Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia

Acrylic based resins are frequently used in daily dental practice. The most common use of the materials includes denture bases and denture liners. Dental prosthetic base is part of a denture that rests on the supporting network elements where the artificial tooth is placed. The problem with the denture base is the high incidence of dental base fracture due to masticatory pressure. This study is aimed to obtain the best properties of fiber acrylic resin as a dental prosthetic base by adding Ultra High Molecular Weight Polyethylene (UHMWPE). UHMWPE fiber length variation used was 0 mm, 2 mm, 4 mm, 6 mm, and 8 mm with a width of 2 mm fiber. The characterization test was porosity, density, compressive strength and hardness. The porosity test are showed that its best value was 1.695%, while the highest density test was 1.177 g/cm3. The highest compressive strength test was at 67.615 MPa and the highest hardness was 17.1 kgf/mm2. Based on all results,they are showed that the variation of UHMWPE fiber length with a width of 2 mm affected the physical and mechanical properties of dental prosthetic base materials.

关键词：

来源：评论

学校读者我要写书评

暂无评论

The study of the operation of Trans Koetaradja public bus transportation of the corridor II A and II B in Banda Aceh city

引用

IOP Conference Series: Materials Science and engineering 2020年第1期933卷

作者： F Fachrurrozy E Wulandari Y Darma Civil Engineering Postgraduate Program Department of Civil Engineering Universitas Syiah Kuala Banda Aceh Indonesia Lecturer Advisory Committee the Architectural Study Programs in the Field of Urban Area Development Engineering Faculty Universitas Syiah Kuala Banda Aceh Indonesia Lecturer Advisory Committee in the Field of Transportation the Civil Department Civil Engineering Faculty Universitas Syiah Kuala Indonesia

Aceh Government is trying to plan the integrated transportation system. Aceh Government has planned the construction of 6 Corridors of Trans Koetaradja Bus, some of them are Corridors II A and II B. The previous public transport cannot accommodate the transportation service needs of the route of Sultan Iskandar Muda Airport - city center - Ulee Lheue Crossing Port. However, currently, the Banda Aceh Trans Koetaradja Public Bus Transportation is projected to be able to improve the services optimally. The purpose of this study is to assess the level of performance and to improve the quality of the service up to the customers' satisfaction expectations. The method of this research comprises the survey, which is sampling Kouto and distributing questionnaires and data analysis. The questionnaire distribution uses statistic test method and Importance Performance Analysis (IPA) through the SERVQUAL approach, namely: reliability, responsiveness, assurance, empathy, and physical evidence. The result of the study is that the current performance of the services of Trans Koetaradja public bus transportation is rated as good; the importance of the service regarding the customers' expectation is rated good; the quality of service provided to customers is rated 94.52%. The conclusion of this study is that there are several shortages of transportation performance, such as the timeliness of arrival, waiting time at bus stops, passenger assistance, and available seats.

关键词：

来源：评论

学校读者我要写书评

暂无评论

The effect of polystyrene addition in characteristics of zinc oxide eugenol dental cement

引用

AIP Conference Proceedings 2020年第1期2314卷

作者： Prihartini Widiyanti Siswanto Betanty Prasetya Sadewi 1Biomedical Engineering Study Program Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia 2Departement of Physics Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia

Zinc oxide-eugenol cements are easier to be tolerated by tissue than other dental materials. They could relieve pain, antibacterial and antiseptic. The cements provide better sealing properties than other type of cements. They used as temporary filling materials, gingival dressings due to their poor mechanic properties. In order to increase the mechanical properties and to reduce solubility of this cement,the additive must be added in the composition of this cement. This study used dental materials, namely zinc oxide eugenol dental cement and polystyrene additives. The sample used in this study was made of the dental cement composition of zinc oxide eugenol cement without the addition of additives polystyrene and with the addition of 2%, 5% and 10% variations of *** results of the tensile strength test and compressive strength test are showed that the larger the percentage of polystyrene additives added to the samples, the greater the two parameters of mechanical strength. This result was in accordance with microstructure characteristic using Scanning Electron Microscopy (SEM) which showed that the greater the percentage of the polystyrene additive, the more subtle the connection between the cement and the teeth.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Integration of Satellite-Derived Bathymetry and Sounding Data in Providing Continuous and Detailed Bathymetric Information

引用

IOP Conference Series: Earth and Environmental Science 2020年第1期618卷

作者： Nur Syahirah Hashim Othman Mohd Yusof Wiwin Windupranata Saiful Aman Hj. Sulaiman Centre of Studies for Surveying Science and Geomatics UiTM Shah Alam Malaysia Geodesy and Geomatics Engineering Study Program Faculty of Earth Science and Technology Institute Technology of Bandung Indonesia

A hydrographic survey can be a cumbersome sometimes. The data can be sparse, providing it can be costly, and it took a lot of manpower and time. Space-borne data like multispectral images can be a helpful tool towards hydrographic survey, especially in the shallow water area. The company like EOMAP and TCARTA make use of Satellite-Derived Bathymetry (SDB) as a tool and product. Would it be great if it also can be applied in Malaysia, especially on the low-risk job or survey planning? Enlarging the survey area and providing a continuous and detailed water depth information is the main objective in this research. In order to complement with convenience and cost reduction, the author used Landsat 8 '(free downloadable images)' in this research. Structuring the procedure is the central part of the process involving pre-processing and processing step until the final product obtained. In this research, the author used various kind of bathymetry algorithms such as Single-Band Algorithm (SBA), Green-Band Algorithm (GBA), and Stumpf. Moreover, the author also uses Principal Component Analysis (PCA) tool from ArcMap and Spear Relative Water Depth: Log-Ratio Transform tool from ENVI to derived bathymetry. All of this bathymetry algorithm gives out a different concept with a different statistical approach. The final result then will be compared and evaluated with Single-Beam Echosounder data (ground truth).

关键词：

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：