检索结果-南通市图书馆

Engine Performance Using Blended Fuels of Biodiesel and Eco Diesel

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Energy Engineering 2023年第1期120卷 107-123页

作者： muhammad idris IHusin Indra Hermawan Uun Novalia RDBatubara Nugroho Agung Pambudi Alfan Sarifudin Study Program of Mechanical Engineering Universitas Medan AreaMedan20156Indonesia Study Program of Mechanical Engineering Politeknik Negeri MedanMedan20156Indonesia Study Program of Industrial Engineering Universitas Harapan MedanMedan20156Indonesia Department of Mechanical Engineering Education Universitas Sebelas MaretSurakarta57126Indonesia

Diesel engines is an internal combustion engine with high thermal efficiency,which also uses biodiesel fuel,an environmentally friendly,non-toxic,and low sulfur *** has been around for a long time due to its similar characteristics to diesel fuels which has limited ***,several disadvantages are associated with biodiesel,such as poor volatility and high viscosity,which reduces engine ***,this study was carried out to improve the diesel engine performance by mixing biodiesel with ecodiesel(ED),an additive produced from natural ingredients that is dissolvable in *** biodiesel fuel properties used are density 860 kg/m3,dynamic viscosity 4.50E-06 m2/s,cetane number 45,and flashpoint 52°*** results showed that biodiesel-ED mixture could improve engine performance and the optimum performance was at a speed of 3000 rpm on 43.30(kW),124.93(N.m)of the engine torque,and 2.45E–5(kg/kW.s)of the specific fuel *** to paired sample t-test,the difference in the engine performance is only experienced in the torque,which has a significant increase in the composition of the biodiesel+ED by 0.07 gr mixture.

关键词： Car vehicle experiment combustion ED renewable energy

IoTFLiP： IoT-based flipped learning platform for medical education

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Digital Communications and Networks 2017年第3期3卷 188-194页

作者： Maqbool Ali Hafiz Syed muhammad Bilal muhammad Asif Razzaq Jawad Khan Sungyoung Lee muhammad idris Mohammad Aazam Taebong Choi Soyeon Caren Han Byeong Ho Kang Department of Computer Science and Engineering Kyung Hee University Yongin 446-701 Republic of Korea IT4BI Universite Libre de Bruxelles Belgium Carleton University Canada Hanwha Systems as Senior Manager Communication PM Team Seongnam 13524 Republic of Korea School of Engineering and ICT Uniuersity of Tasmania Hobart Tasmania 7005 Australia

Case-Based Learning （CBL） has become an effective pedagogy for student-centered learning in medical education, which is founded on persistent patient cases. Flippped learning and Internet of Things （IoTs） concepts have gained significant attention in recent years. Using these concepts in conjunction with CBL can improve learning ability by providing real evolutionary medical eases. It also enables students to build confidence in their decision making, and efficiently enhances teamwork in the learning environment. We propose an IoT-based Flip Learning Platform, called IoTFLiP, where an IoT infrastrneture is exploited to support flipped case-based learning in a cloud environment with state of the art security and privacy measures for personalized medical data. It also provides support for application delivery in private, public, and hybrid approaches. The proposed platform is an extension of our Interactive Case-Based Flipped Learning Tool （ICBFLT）, which has been developed based on current CBL practices. ICBFLT formulates summaries of CBL cases through synergy between students＇ and medical expert knowledge. The low cost and reduced size of sensor device, support of IoTs, and recent flipped learning advancements can enhance medical students＇ academic and practical experiences. In order to demonstrate a working scenario for the proposed IoTFLiP platform, real-time data from IoTs gadgets is collected to generate a real-world case for a medical student using ICBFLT.

关键词： Internet of things Cloud environment Flipped learning Case-based learning Medical education

Research on the Evolution of Media Practices of Leading Cadres’ New Media and the Communication Characteristics

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Social Networking 2023年第3期12卷 57-66页

作者： Hebin Zhang muhammad Zaffwan idris Faculty of Art Sustainability & Creative Industry University Pendidikan Sultan Idris Perak Malaysia School of Journalism and Communication Henan University of Technology Zhengzhou China

Purpose/Significance: This study aims to define the concept of leading cadres new media usage in China specifically, and to describe and analyze the forms and typical cases and characteristics of leading cadres new media in different stages. Method/Process: Based on the themes and contents of a few media accounts of leading cadres at different ranks, we summarizes leading cadres new media usage in a systematic perspective and content analysize method. Result/Conclusion: The study defines the concept of Leading Cadres’ new media from the perspective of media practice, determine its position as a media communication platform in the government affairs new media communication system and its relationship with the other elements, and then systematically review the evolution of its media practice from personal website, blog, microblog and microblog to WeChat, live show. On this basis, with the Harold Lasswell communication model, this article summarizes leading cadres new media communication characteristics from five aspects: content producer, content, channel, audience, and effect. Future studies may also enhance the empirical research from the effect perspective.

关键词： Leading Cadres’ New Media Evolution of Media Practices Communication Characteristics

Numerical Analysis on Wood Pyrolysis in Pre-Vacuum Chamber

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Sustainable Bioenergy Systems 2014年第3期4卷 149-160页

作者： Hiroki Homma Hiroomi Homma muhammad idris National Institute of Technology Matsue College Nishiikumacho Matsue Japan University of North Sumatera Jl. Almamater Medan Indonesia

In the previous experimental work, a new technology system for wood pyrolysis was developed to aim at mitigating climate change, global warming, and energy crisis as well as enhancing low electrification in rural areas in developing countries. The new technology system equipped with a pre-vacuum chamber requires low cost and less maintenance. However, large wood pyrolysis in the pre-vacuum chamber is rather complicated. To obtain a good understanding of the previous experimental results, a numerical analysis taking account of heat-mass transfer and chemical reaction is carried out. Two-step general reaction model is proposed for the numerical analysis. The first stage is volatile and char formation from the wood pieces and the second state is decomposition of the volatile to five species including vapor of tar. In this analysis, chemical formulae of the volatile and the tar are successfully identified hypothetically. The results obtained by this numerical analysis can explain the experimental results reasonably and provide useful information about time evolution of volatile formation, temperature change in pre-vacuum chamber with time, and species mole concentration decomposed from the volatile.

关键词： Pyrolysis Pre-Vacuum Chamber Chemical Reaction Volatile Sublimation ANSYS Fluent

Can outer-to-outer diameter be used alone in diagnosing appendicitis on 128-slice MDCT?

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Radiology 2014年第12期6卷 913-918页

作者： Jamal Yaqoob muhammad idris muhammad Shahbaz Alam Nazia Kashif Department of Radiology Dallah Hospital Resident Radiology Department Peoples Medical College

AIM: To assess the frequency of visualization, position and diameter of normal appendix on 128-slice multidetector computed tomography(MDCT) in adult ***: Retrospective cross sectional study conducted at Radiology Department, Dallah Hospital, Riyadh, Saudi Arabia from March 2013 to October 2013. Non-enhanced computed tomography scans of abdomen and pelvis of 98 patients presenting with hematuria(not associated with abdominal pain, fever or colonic disease) were reviewed by two radiologists, blinded to patient history. The study group included 55 females and 43 males with overall mean age of 54.7 years(range 21 to 94 years). The coronal reformatted images were reviewed in addition to the axial images. The frequency of visualization of appendix was recorded with assessment of position, diameter and luminal ***: The appendix was recorded as definitely visualized in 99% of patients and mean outer-to-outer diameter of the appendix was 5.6 ± 1.3 mm(range 3.0-11.0 mm).CONCLUSION: MDCT with its multiplanar reformation display is extremely useful for visualization of normal appendix. The normal appendix is very variable in its position and diameter. In the absence of other signs, the diagnosis of acute appendix should not be made solely on outer-to-outer appendiceal diameter.

关键词： Normal appendix Multidetector computed tomography Appendiceal enlargement Computed tomography

Research on the Collaborative Governance of Social Responsibility in Online Audiovisual Enterprises

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Social Networking 2024年第1期13卷 1-13页

作者： Chuying Kang muhammad Zaffwan idris Juan Liu Faculty of Art Sustainability & Creative Industry University Pendidikan Sultan Idris Tanjung Malim Malaysia Faculty of Journalism and Communication Henan University of Technology Zhengzhou China

This paper aims to analyze the present conditions of the social responsibility ecosystem in online audiovisual enterprises in the digital age. It focuses on the governance of social responsibility in these enterprises and conducts an in-depth analysis of the problems and influencing factors related to the social responsibility aberrations of online audiovisual enterprises. Drawing upon social responsibility theory and collaborative governance theory, this research constructs a social responsibility guidance and governance system guided by the public, supported by the voluntary fulfillment of responsibilities by online audiovisual enterprises, and based on the collaborative participation of diverse stakeholders. It explores and optimizes the implementation pathways of this system, providing theoretical support and practical guidance for promoting the sustainable development of online audiovisual enterprises. Furthermore, it aims to contribute to the creation of a harmonious Internet ecosystem.

关键词： Online Audiovisual Enterprises Social Responsibility Collaborative Governance

Wood Pyrolysis in Pre-Vacuum Chamber

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Sustainable Bioenergy Systems 2013年第4期3卷 243-249页

作者： Hiroki Homma Hiroomi Homma Yusrizal muhammad idris Matsue College of Technology Matsue Japan University of North Sumatera Jl. Almamater Medan Indonesia

Climate change, global warming, and energy crisis are critical issues to be solved urgently in a global framework. Alternative energy and renewable energy technologies must be quickly developed to be substituted for fossil fuels like oil, gases, and coal. USA, UE, and Japan invested huge budgets to develop biomass renewable energy technology. Their target is to develop a commercial base large-scaled plant. On the other hand, in developing countries, especially in rural areas, people who can access electricity is still less than 70%, To decelerate or prevent global warming and improve electrification in rural areas, a new technology for wood pyrolysis, which requires low manufacturing cost and less maintenance, and of which gases are directly applicable to the gas engine generator, is developed in a laboratory scale. This paper reports the performance of this new plant and effects of several parameters on the performance. It is concluded that the new technology is quite feasible in rural areas, and upgrading of the plant is easily possible.

关键词： Pyrolysis Rubber Wood Pre-Vacuum Chamber Pyrolysis Yields

微信品牌店直播对消费者持续购买意愿的影响研究

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

微信品牌店直播对消费者持续购买意愿的影响研究

作者： Kabo idris muhammad 燕山大学

学位级别：硕士

社交媒体直播的快速发展推动了受众的大量参与。现有的文献主要讨论了销售多类产品的直播者如何吸引受众并完成销售。很少有人探讨过,作为拥有在线商店的官方账户的品牌,如何利用直播来提高品牌竞争力和顾客的长期购买意向。本研究调查... 详细信息

社交媒体直播的快速发展推动了受众的大量参与。现有的文献主要讨论了销售多类产品的直播者如何吸引受众并完成销售。很少有人探讨过,作为拥有在线商店的官方账户的品牌,如何利用直播来提高品牌竞争力和顾客的长期购买意向。本研究调查了微信品牌商店的直播营销和广告对品牌竞争力的影响,以及如何影响消费者特别是年轻一代消费者的购买决策,以及这些影响的传播程度。为完成研究目标,2022年5月25日至8月25日,本研究在全国范围内进行了问卷调查,共回收有效问卷400份。通过Smart PLS软件对原始数据的结果进行了定量分析,分析结果显示这项研究的一些非常有趣的结果,涉及到直播者的个性特征、直播者与受众的互动性水平和直播信息诉求对品牌的影响。首先,在个人特质方面,研究表明直播者的自然特质会影响品牌的竞争力;其次,直播者和观众之间的互动性(反应和参与的速度)有助于品牌竞争力,而且,直播者表现出来的信息诉求(情感和理性诉求,以触动观众并影响他们对品牌的态度),也会影响品牌竞争力。最后,正如本研究结果所显示的那样,品牌能力创造了一个良性循环,有助于观看直播的受众持续购买具有品牌竞争力的产品。因此,研究者建议公司和品牌更加重视他们对直播这一营销工具的参与程度。本研究丰富了移动互联网时代与消费者行为和广告有关的文献。作为微信官方品牌商店直播方面最早的研究之一,本文为在这一领域的定量研究提供了重要结论。

关键词：微信品牌商店直播品牌竞争力购买意愿

Recent advances in application of moving bed bioreactors for wastewater treatment from recirculating aquaculture systems: A review

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Aquaculture and Fisheries 2022年第3期7卷 244-258页

作者： Abubakar Shitu Gang Liu Aliyu idris muhammad Yadong Zhang Musa Abubakar Tadda Wanhe Qi Dezhao Liu Zhangying Ye Songming Zhu Institute of Agricultural Bio-Environmental Engineering College of Bio-systems Engineering and Food ScienceZhejiang UniversityHangzhou310058China Key Laboratory of Equipment and Informatization in Environment Controlled Agriculture Ministry of AgricultureHangzhou310058China Department of Agricultural and Environmental Engineering Faculty of EngineeringBayero UniversityKanoNigeria

In recent years,government investments in implementing restrictive public policies on the treatment and discharge of effluents from the aquaculture industry have ***,efficient and cleaner methods for aquaculture production are *** aquaculture systems(RAS)offers water conservation by recycling the treated aquaculture water for *** wastewater treatment using a moving bed bioreactors(MBBRs)process has been considered well suited for maintaining good water quality,thereby making fish farming more ***,improvements were achieved in tackling the influence of salinity,organic matter,disinfectant,and bioreactor start-up process on the MBBR performance *** review highlights an updated overview of recent development made using MBBR to treat the residual water from ***,nitrification and simultaneous nitrification-denitrification(SND),and other hybrid processes for nitrogen removal were ***,future challenges and prospects of MBBRs in RAS facilities that need to be considered were also proposed.

关键词： Ammonia removal Biofilm carriers Sustainability Salinity Nitrogenous compound Accelerated start-up