18 research outputs found
Perbedaan daya dan emisi gas buang CO dan HC yang dihasilkan antara injektor standart dan racing pada motor Honda Beat PGMFI 110 cc
No full textWibowo, Andre Ari. 2019. Perbedaan Daya dan Emisi Gas Buang CO dan HC Yang Dihasilkan Antara Injektor Standart dan Racing Pada Motor Honda Beat PGMFI 110 cc. Skripsi, Program Studi Pendidikan Teknik Otomotif. Universitas Negeri Malang. Pembimbing : (I) Drs. Partono M.Pd., (II) Windra Irdianto S.Pd., M.Pd. Kata Kunci: Injektor Standart, Injektor Racing, Daya, Emisi Gas Buang CO dan HC. Seiring dengan berjalanya waktu, dunia otomotif mengalami perkembangan yang begitu cepat, hal ini terdapat pada perkembangan kendaraan bermotor dari sistem konvensional menjadi sistem injeksi. Komponen sistem injeksi yang berperan dalam pemasukan bahan bakar kedalam ruang bakar adalah injektor. Injektor dalam proses pembakaran menjadi bagian mesin yang berhubungan langsung dengan proses pembakaran, sehingga dengan pemilihan injektor racing dapat meningkatkan kualitas pembakaran dan dapat meningkatkan daya dan penurunan emisi gas buang CO dan HC. Akan tetapi, kondisi dimasyarakat ditemukan banyak permintaan masyarakat yang ingin meningkatkan daya dengan penggantian injektor dengan kapasitas lebih besar, tetapi tanpa melakukan bore up pada mesin dan juga penggantian ECM, karena dengan pembelian injektor lebih murah dan tidak semahal dengan penggantian ECM dan perangkat lainya, namun secara teoritis penggantian injektor dengan kapasitas lebih besar tidak sesuai dengan stoikiometri pembakaran, dimana daya terbesar didapat pada campuran 12: 1 dan apabila stoikiometri pembakaran tidak tercapai, maka akan menimbulkan emisi gas buang diantaranya CO dan HC. Penelitian ini bertujuan untuk mengetahui perbedaan daya dan emisi gas buang CO dan HC antara penggunaan injektor standart 6H-80 cc dan injektor racing 3H-150 cc pada motor Honda Beat PGMFI 110 cc. Penelitian ini merupakan penelitian quasy eksperimen atau eksperimen semu. Analisis data hasil penelitian yaitu dengan menggunakan uji beda paired sample t test dengan menggunakan software IBM spss statistics 20 for wondows. Pengambilan data daya yaitu mulai rpm 5000-8000 dengan kenaikan 1000 rpm, sedangkan pengambilan data emisi gas buang CO Dan HC mulai dari rpm 1500-8000 dengan kenaikan 1000 rpm. Hasil penelitian menunjukan adanya perbedaan yang signifikan antara penggunaan injektor standart 6H-80 cc dengan injektor racing 3H-150 cc, dimana hasil daya menunjukan daya injektor standart 6H-80 cc lebih besar dari injektor racing 3H-150 cc, emisi gas buang CO dan HC lebih rendah injektor standart. Berdasarkan hasil penelitian dapat disimpulkan penggunaan injektor dapat digunakan pada sepeda motor, tetapi harus disesuaikan dengan kondisi mesin sehingga tepat dalam penggunaanya dan dapat meningkatkan daya dan rendah emisi gas buang CO dan HC, selain itu penggantian injektor perlu diimbangi dengan penggantian ECM
Designing portable chopping plastic waste machine utilizing electric motor
No full textWaste management in Indonesia is still a problem that can not be handled properly. Waste reduction activities both in the community as waste producers and at the level of the area is still small, so the waste is disposed to the final processing place (TPA) while the landfill is very limited. Plastic waste is a waste that needs to be handled properly, because plastic waste is a waste that can not be broken down by microorganisms. Plastic waste can last for years causing environmental pollution. The design of a portable plastic waste counter machine aims to create a waste recycling tool, so that waste can be recycled into useful items and and create an environmental balance. To focus the manufacture of this crusher, the manufacture is limited to making non-organic waste composting machine design that is plastic waste. The design results are expected to be applied properly and can destroy the waste into granules so it can be reprocessed. The hope of this recycling process is to reduce the amount of plastic waste and make it an item that has economic value
Designing portable chopping plastic waste machine utilizing electric motor
No full textWaste management in Indonesia is still a problem that can not be handled properly. Waste reduction activities both in the community as waste producers and at the level of the area is still small, so the waste is disposed to the final processing place (TPA) while the landfill is very limited. Plastic waste is a waste that needs to be handled properly, because plastic waste is a waste that can not be broken down by microorganisms. Plastic waste can last for years causing environmental pollution. The design of a portable plastic waste counter machine aims to create a waste recycling tool, so that waste can be recycled into useful items and and create an environmental balance. To focus the manufacture of this crusher, the manufacture is limited to making non-organic waste composting machine design that is plastic waste. The design results are expected to be applied properly and can destroy the waste into granules so it can be reprocessed. The hope of this recycling process is to reduce the amount of plastic waste and make it an item that has economic value
Author correction: Study of 300,486 individuals identifies 148 independent genetic loci influencing general cognitive function
Full text linkChristina M. Lill, who contributed to analysis of data, was inadvertently omitted from the author list in the originally published version of this article. This has now been corrected in both the PDF and HTML versions of the article
The visceral screen: Between the cinemas of John Cassavetes and David Cronenberg, a Barthesian perspective
Full text linkThe thesis discusses two directors who are never considered together in academic discourse. Cassavetes’ perceived focus on events led by the dynamics of performance and his looseness of technique opposes the calculated compositions of the Cronenberg film, with its aesthetic of horrific images and its gallery of emotionally detached protagonists. Yet it is between such opposing methods of cinematic expression that the ineffable qualities of film aesthetics can be discovered. Cassavetes’ cinema achieves this by revelling in a surplus of activity that exceeds narrative, while the indescribable characteristics of the Cronenberg oeuvre is achieved through a systematic emptying of the image’s meaning through a simultaneous commitment to paring back emotion and portraying of images that are controversial and inconceivable. Taken together, the thesis identifies these aspects of film as ‘the visceral,’ a facet of the moving image that most certainly exists, but is resolutely, and disturbingly resistant to interpretation.
Roland Barthes’ writings are integral to a theory of the visceral. His re-evaluation of Saussurean semiology as a method of analyzing and undoing ideologically-imposed meanings informs readings of sequences from Cassavetes and Cronenberg’s films. Following Barthes, the thesis suggests that the existence of the visceral is realized as a resistance to ideological interpretations of the image, and so cannot be described. Ultimately, the inability of semiology to fully grasp certain aspects of the filmed image is put forward as a rejoinder to theories of the fiction film as principally a narrative medium
Induction of heat shock protein 70 in mouse RPE as an in vivo model of transpupillary thermal stimulation
No full textThe induction of heat shock response in the macula has been proposed as a useful therapeutic strategy for retinal neurodegenerative diseases by promoting proteostasis and enhancing protective chaperone mechanisms. We applied transpupillary 1064 nm long-duration laser heating to the mouse (C57Bl/6J) fundus to examine the heat shock response in vivo. The intensity and spatial distribution of heat shock protein (HSP) 70 expression along with the concomitant probability for damage were measured 24 h after laser irradiation in the mouse retinal pigment epithelium (RPE) as a function of laser power. Our results show that the range of heating powers for producing heat shock response while avoiding damage in the mouse RPE is narrow. At powers of 64 and 70 mW, HSP70 immunostaining indicates 90 and 100% probability for clearly elevated HSP expression while the corresponding probability for damage is 20 and 33%, respectively. Tunel staining identified the apoptotic regions, and the estimated 50% damaging threshold probability for the heating (ED50) was ~72 mW. The staining with Bestrophin1 (BEST1) demonstrated RPE cell atrophy with the most intense powers. Consequently, fundus heating with a long-duration laser provides an approachable method to develop heat shock-based therapies for the RPE of retinal disease model mice.Peer reviewe
Unique prokaryotic consortia in geochemically distinct sediments from Red Sea Atlantis II and Discovery Deep brine pools
Full text link© The Author(s), 2012. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in PLoS ONE 7 (2012): e42872, doi:10.1371/journal.pone.0042872.The seafloor is a unique environment, which allows insights into how geochemical processes affect the diversity of
biological life. Among its diverse ecosystems are deep-sea brine pools - water bodies characterized by a unique
combination of extreme conditions. The ‘polyextremophiles’ that constitute the microbial assemblage of these deep hot
brines have not been comprehensively studied. We report a comparative taxonomic analysis of the prokaryotic
communities of the sediments directly below the Red Sea brine pools, namely, Atlantis II, Discovery, Chain Deep, and an
adjacent brine-influenced site. Analyses of sediment samples and high-throughput pyrosequencing of PCR-amplified
environmental 16S ribosomal RNA genes (16S rDNA) revealed that one sulfur (S)-rich Atlantis II and one nitrogen (N)-rich
Discovery Deep section contained distinct microbial populations that differed from those found in the other sediment
samples examined. Proteobacteria, Actinobacteria, Cyanobacteria, Deferribacteres, and Euryarchaeota were the most
abundant bacterial and archaeal phyla in both the S- and N-rich sections. Relative abundance-based hierarchical clustering
of the 16S rDNA pyrotags assigned to major taxonomic groups allowed us to categorize the archaeal and bacterial
communities into three major and distinct groups; group I was unique to the S-rich Atlantis II section (ATII-1), group II was
characteristic for the N-rich Discovery sample (DD-1), and group III reflected the composition of the remaining sediments.
Many of the groups detected in the S-rich Atlantis II section are likely to play a dominant role in the cycling of methane and
sulfur due to their phylogenetic affiliations with bacteria and archaea involved in anaerobic methane oxidation and sulfate
reduction.This work was supported by King Abdullah University for Science and Technology Global Collaborative Partners (GCR) program
Ideologised foreign policy and the pragmatic rationale: The case of Algeria under Houari Boumedienne, 1965-1978.
Full text linkThe role of ideology in foreign policy making and implementation has been a subject of study by international relations specialists, especially during the period of the Cold War. The study of Algerian foreign policy under President Houari Boumedienne rule (1965-1978) makes a good
case study because of the particular role that ideology played in the making and implementation of foreign policy during this period. Other studies on Algeria's foreign policy have not directly addressed ideology and pragmatism as themes. The majority of these studies covered only parts
or aspects of this period, not taking it as a subject of their total focus.
This study investigates the role ideology has played in the making and implementation of Algeria's foreign policy under President Houari Boumedienne's regime (1965-1978). It assesses the factors behind the ideological stances of the regime as well as the underlying causes behind the pragmatic foreign policy postures that the leadership adopted at that time.
The study is divided into nine chapters. Chapter one presents a critical review of literature and outlines the research methodology adopted. Chapter two traces the historical background of the pre-Boumediennist era. Chapter three concentrates on the study of the state-level of analysis, it focuses on the domestic aspects of the Algerian decision-making process and seeks to give an
account of the ideological influences on Algeria's economic policy. Chapter four looks into President Houari Boumedienne's policy-making process towards the Maghrib. Chapter five is devoted to Algeria's position on inter-Arab politics, including the Palestinian Question. Chapter
six is a thorough analysis of Algeria's oil diplomacy. Chapters seven and eight examine Algeria's interaction with the Third World and its posture between East and West, respectively. The last chapter provides us with an insight into the impact of ideology on Boumedienne himself and on his decision making. This study believes that President Houari Boumedienne's ideological proclamations and pragmatic motivations were blurred. Although some policy
actions appeared to be ideologically motivated, they were, in fact, taken because they were considered to be in the best interest of the state and the regime in power.
The study is based on a documentary analysis of available material in Arabic, French and English. This has been supplemented with a number of interviews with personalities who were close to President Houari Boumedienne
Scalable Text Mining with Sparse Generative Models
No full textThe information age has brought a deluge of data. Much of this is in text form, insurmountable in scope for humans and incomprehensible in structure for computers. Text mining is an expanding field of research that seeks to utilize the information contained in vast document collections. General data mining methods based on machine learning face challenges with the scale of text data, posing a need for scalable text mining methods.
This thesis proposes a solution to scalable text mining: generative models combined with sparse computation. A unifying formalization for generative text models is defined, bringing together research traditions that have used formally equivalent models, but ignored parallel developments. This framework allows the use of methods developed in different processing tasks such as retrieval and classification, yielding effective solutions across different text mining tasks. Sparse computation using inverted indices is proposed for inference on probabilistic models. This reduces the computational complexity of the common text mining operations according to sparsity, yielding probabilistic models with the scalability of modern search engines.
The proposed combination provides sparse generative models: a solution for text mining that is general, effective, and scalable. Extensive experimentation on text classification and ranked retrieval datasets are conducted, showing that the proposed solution matches or outperforms the leading task-specific methods in effectiveness, with a order of magnitude decrease in classification times for Wikipedia article categorization with a million classes. The developed methods were further applied in two 2014 Kaggle data mining prize competitions with over a hundred competing teams, earning first and second places
