16 research outputs found
PEMANFAATAN LIMBAH AMPAS TEBU DAN TEMPURUNG KELAPA MENJADI BIOBRIKET DENGAN VARIASI KOMPOSISI BAHAN BAKU
No full textTHE UTILIZATION OF WASTE BAGASSE AND COCONUT SHELL
INTO BIO-BRIQUETTE BY USING A VARIATION OF RAW
MATERIAL COMPOSITION
Dilia Puspa ; 89 pages ; 15 tables ; 25 pictures ; 4 attachments ; 2014
Bio-briquette is a solid fuel which has lower volatile matter content than coal
briquette, so it does not make too much smoke can damage health of the
briquette’s user. In this research, bio-briquettes is made from bagasse and
coconut shell using amylum adhesives and the method is used in this research is
experimental method. This research aims to obtain the best characteristic of biobriquettes
accordance with the applicable bio-briquette standard in Indonesia by
using variation of compositions of raw materials are bagasse and coconut shell
with ratio (%) 30:70, 40:60, 50:50, 60:40, and 70:30. This bio-briquette’s
procedure making through several stages of the preparation of rawa materials,
the initial analysis of raw materials, carbonization, the making of bio-briquette
and the last is products analysis. In the carbonization, temperature of
carbonization for raw materials used 400 – 500 oC for bagasses and 600 – 700 oC
for coconut shells. The results of this research showed that the best characteristic
of bio-briquette are made from compositions of bagasse and coconut shell 30:70
which obtained the values of inherent moisture is 5.3%, ash 7.9%, volatile matter
content 19.8%, fixed carbon 67%, calorific value 6303 cal/g, total sulfur 0.11%,
dependability of pressure 18.9 kg/cm2 and long burning is 2 hours 44 minutes.
From those characteristics, the author conclude that the bio-briquette from
compositions of bagasse and coconut shell 30:70 including to environmentally
friendly’s bio-briquettes and almost fulfilled the specification of quality standard
of charcoal briquettes that is Standar Nasional Indonesia (SNI No. 01-6235-
2000).
Keywords: Bagasse, Bio-briquette, Inherent Moisture, Ash, volatile matter, fixed
carbon, calorific valu
Multilingualism in post-Soviet Uzbekistan
No full textPresented at the ICMME (International Conference on Multilingualism and Multilingual Education) May 2017 in Braga, Portugal.
The spread of foreign languages and local people’s motivation and resistance to learn them are not new phenomena in Uzbekistan. In fact, as a result of various political, social, and economic changes, the language reform in Uzbekistan has gone through several major changes within the last hundred years, including Romanization of Arabic-based alphabet in 1923 (Mehmet, 2009), dissemination of the Russian language in the Uzbek lexicon in the early 1900s (Fierman, 1991), adoption of the Cyrillic script in 1940, replacement of the Cyrillic alphabet with modified Latin script in 1993, disempowerment of the Russian language after the collapse of the Soviet Union (Hasanova, 2007), and the wide spread of the English language in the educational system in the late 1990s. This study, the first of its kind, uses qualitative methods to investigate the linguistic landscape of pre and post Soviet Uzbekistan. The study specifically examines the social, political, and educational contexts to illustrate the rise and fall of the Russian, Uzbek, and English languages before and after Uzbekistan declared its independence. The study also looks into local people’s attitude toward Uzbek, Russian, and English languages after the collapse of the Soviet Union. The study was specifically provoked by the linguistic chaos that happened in formerly Soviet republics, including Uzbekistan, in the wake of the collapse of the Soviet Union. With the downfall of the Iron Curtain in 1991, Russian, the lingua franca of the Soviet people and one of the dominant languages of the 20th century lost its influence and status as the language of power and prestige, and Uzbek, the abandoned language with ambiguous role during the soviet time became the one and only official language of power and politics. Moreover, English, once considered the language of western capitalism and bourgeoisie (Dushku, 1998) became the most popular foreign language in the educational sectors.
References
Dushku, Silvana. 1998. ‘English in Albania: Contact and convergence.’ In World Englishes 17(3), pp. 369–379.
Fireman, W. 1991. Language Planning and National Development: The Uzbek Experience. Mouton de Gruyter. Berlin- New York.
Hasanova, D. 2007. Teaching and learning English in Uzbekistan. English Today 23(1). 3-9.
Mehmet, U. 2009. Romanization in Uzbekistan past and present. JRAS (3). 1-12.Not peer reviewedConference presentationPost-Soviet Uzbekista
English as a trademark of modernity and elitism
No full textConference presentation at the Sociolinguistics Symposium 21, Murcia, Spain (June, 2016).
A case study of the presence of English in shop and service names in Post-Soviet Uzbekistan. The use of English as a trademark of modernity and elitism in the commercial contexts in Uzbekistan is a new phenomenon which has emerged as Uzbekistan entered the global village as an independent and developing country in the wake of the collapse of the Soviet Union. While during the Cold War (1947–1991) and the Soviet era by and large, English was considered ‘the language of Western imperialism’ (Dushku, 1998), today it is seen as a symbol of advanced education, modernity, prestige, and elitism. In order to have a better understanding of how common and widespread English is on the streets and commercial contexts of Uzbekistan, this study examines the use of written English in shop signs and different service names.Not peer reviewedConference presentatio
English
No full textThe sorting system is usually used as a load handling system in the industrial applications in order to increase the production rate, reduce human error, and increase the efficiency. There are two types of sorting system applied in the industrial applications such as manual sorting system and automatic sorting system. This project presents the design and implementation of PLC based automatic sorting system in mini scale size. The system consists of a conveyor, limit switch, double acting cylinder, and Programmable Logic Controller. Omron PLC CPM2A was used to control the system based on the height of the box. The resulting box sorting system was capable to separate the height of 4 cm block and the height of 1 cm block into their respective location
Author rights protection organizations in the Czech Republic - their activities and presentation
No full textTato diplomová práce s názvem Ochranné autorské organizace v ČR, jejich působení a prezentace činnosti se zaměřuje na oblast ochrany autorských práv, a to zejména v oblasti hudebních děl. Cílem práce je přinést ucelený pohled na současnou situaci kolektivních správců, kteří působí na území České republiky a srovnat jejich činnost ve vybraných oblastech. Cílem práce je také zhodnotit praktické fungování kolektivní správy a podat vysvětlení některých mýtů, které o kolektivní správě kolují mezi širokou veřejností. Teoretická část práce obsahuje vymezení základních pojmů, které slouží jako východisko pro další kapitoly, které se věnují konkrétním kolektivním správcům v ČR, a to OSA, INTERGRAM a DILIA. Tato část práce vychází z analýzy výročních zpráv těchto organizací, a také z osobních rozhovorů a písemné komunikace se zástupci uvedených institucí. Práce je přínosná především jako shrnutí a zhodnocení aktuálního fungování kolektivních správců, kteří jsou součástí kultury, a jsou tedy i oni zodpovědni za to, v jakém stavu se nejenom česká kultura nachází.This Master's thesis entitled Author rights protection organizations in the Czech Republic - their activities and presentation focuses on the area of copyright protection, especially in the field of musical work. The aim of the thesis is to provide a comprehensive overview of the current situation of collective societies operating in the Czech Republic and to compare them in selected areas of activity. The aim of the work is also to evaluate the practical functioning of the collective societies and explain some myths that are routed by the general public about the collective administration. The theoretical part of the thesis contains the definition of basic concepts, as the basis for other chapters dealing with specific collective societies, namely OSA, INTERGRAM and DILIA. This part of the thesis is based on annual reports analysis of these organizations, as well as personal interviews and written communication with these institutions' representatives. This master thesis is particularly helpful as a summary and evaluation of collective organizations' activities that are part of the culture and therefore have a significant impact on the level of Czech and other cultures
Author rights protection organizations in the Czech Republic - their activities and presentation
No full textThis Master's thesis entitled Author rights protection organizations in the Czech Republic - their activities and presentation focuses on the area of copyright protection, especially in the field of musical work. The aim of the thesis is to provide a comprehensive overview of the current situation of collective societies operating in the Czech Republic and to compare them in selected areas of activity. The aim of the work is also to evaluate the practical functioning of the collective societies and explain some myths that are routed by the general public about the collective administration. The theoretical part of the thesis contains the definition of basic concepts, as the basis for other chapters dealing with specific collective societies, namely OSA, INTERGRAM and DILIA. This part of the thesis is based on annual reports analysis of these organizations, as well as personal interviews and written communication with these institutions' representatives. This master thesis is particularly helpful as a summary and evaluation of collective organizations' activities that are part of the culture and therefore have a significant impact on the level of Czech and other cultures
Doctrinal Perspective about the Origins and the Viability of the Repetition Action in Colombia
No full textDesde la perspectiva doctrinal sobre los orígenes y la viabilidad de la Acción de Repetición en Colombia, la autora concluye que las dificultades en el logro del objetivo de la restitución patrimonial responde, en primer lugar, al poder de los Comités de Conciliación para determinar la viabilidad de la misma, y, en segunda instancia a las falencias implícitas en la herramienta del llamamiento en garantía. Para ello, el documento opta por la revisión de la Ley 678 de 2001, y de estudios empíricos, doctrinales y de jurisprudencia sobre la Acción.
De igual forma, se formulan sugerencias para la reestructuración de la misma que incluyen el fortalecimiento del papel del Ministerio Público, y las entidades estatales, así como una mayor regulación del llamamiento en garantía.From the doctrinal perspective about the origins and the viability of the Repetition Action in Colombia, the author concludes that the difficulties for the objective of patrimonial restitution responds, at first, to the power of conciliation committees in order to determinate its viability. Secondly, to the deficiencies with in the call in guarantee procedure. For such intention, the document calls for the revision of the Law 678 dated in 2001, and the empirical, doctrinal and jurisprudential studies about the Action.
At the same time, recommendations for restructuring the Action are suggested, which includes strengthening the role of Public Prosecutor’s Office and the state agencies, as well as greater regulation of the guarantee call
Doctrinal Perspective about the Origins and the Viability of the Repetition Action in Colombia
No full textDesde la perspectiva doctrinal sobre los orígenes y la viabilidad de la Acción de Repetición en Colombia, la autora concluye que las dificultades en el logro del objetivo de la restitución patrimonial responde, en primer lugar, al poder de los Comités de Conciliación para determinar la viabilidad de la misma, y, en segunda instancia a las falencias implícitas en la herramienta del llamamiento en garantía. Para ello, el documento opta por la revisión de la Ley 678 de 2001, y de estudios empíricos, doctrinales y de jurisprudencia sobre la Acción.
De igual forma, se formulan sugerencias para la reestructuración de la misma que incluyen el fortalecimiento del papel del Ministerio Público, y las entidades estatales, así como una mayor regulación del llamamiento en garantía.From the doctrinal perspective about the origins and the viability of the Repetition Action in Colombia, the author concludes that the difficulties for the objective of patrimonial restitution responds, at first, to the power of conciliation committees in order to determinate its viability. Secondly, to the deficiencies with in the call in guarantee procedure. For such intention, the document calls for the revision of the Law 678 dated in 2001, and the empirical, doctrinal and jurisprudential studies about the Action.
At the same time, recommendations for restructuring the Action are suggested, which includes strengthening the role of Public Prosecutor’s Office and the state agencies, as well as greater regulation of the guarantee call
THE ENHANCEMENT OF TEMPERATURE IN BOILER BY STEAM INJECTION
No full textThe boiler is equipment widely used in various industrial sectors such as power plants, fertilizer plants, paper mills, and others. The combustion chamber is an important part of the boiler which can determine the quality of the steam product. The main problem has happened in combustion chambers such as unburned hydrocarbon/carbon loss which is called fouling. Fouling has occurred in many boilers, which use coal or oil as fuel for the production of steam and decreases boiler performance. The purpose of this research is to increase temperature by adding steam injection to reduce fouling to compare with and without steam injection. Two indicators that have the potential to enhance heat transfer are the elevation in temperature and the reduction in fouling percentage. The variables in this research were air flow of 15 L/min, 17,5 L/min, and 20 L/min and steam injection pressure of 2 bars, 3 bars, and 4 bars. The maximum temperature enhancement was 37,5% in 15 L/min of air flow at a steam injection pressure of 2 bars and 3 bars. The maximum fouling abatement was 78,57% in 15 L/min at a steam injection pressure of 4 bars.The boiler is equipment widely used in various industrial sectors such as power plants, fertilizer plants, paper mills, and others. The combustion chamber is an important part of the boiler which can determine the quality of the steam product. The main problem has happened in combustion chambers such as unburned hydrocarbon/carbon loss which is called fouling. Fouling has occurred in many boilers, which use coal or oil as fuel for the production of steam and decreases boiler performance. The purpose of this research is to increase temperature by adding steam injection to reduce fouling to compare with and without steam injection. Two indicators that have the potential to enhance heat transfer are the elevation in temperature and the reduction in fouling percentage. The variables in this research were air flow of 15 L/min, 17,5 L/min, and 20 L/min and steam injection pressure of 2 bars, 3 bars, and 4 bars. The maximum temperature enhancement was 37,5% in 15 L/min of air flow at a steam injection pressure of 2 bars and 3 bars. The maximum fouling abatement was 78,57% in 15 L/min at a steam injection pressure of 4 bars
SOSIALISASI PEMANFAATAN SABUT KELAPA MENJADI PUPUK ORGANIK CAIR DI PLAJU DARAT
No full textSabut kelapa merupakan bagian terluar buah kelapa yang belum dimanfaatkan secara optimal dan dinilai memiliki nilai ekonomi rendah. Selama ini, pemanfaatannya lebih banyak dalam bentuk kering untuk kerajinan, bahan bakar, atau pengganti spons pencuci, sementara pemanfaatan sabut basah masih jarang dilakukan. Kegiatan pengabdian masyarakat ini untuk melatih dan mendemonstrasikan pemanfaatan sabut kelapa sebagai bahan baku dalam pembuatan pupuk organik cair (POC). Pupuk organik cair memiliki kelebihan karena unsur hara yang dikandungnya dapat lebih cepat diserap oleh tanaman, tidak mengganggu keseimbangan nutrisi tanah, serta berperan dalam memperbaiki sifat fisik, kimia, dan biologi tanah. Melalui kegiatan ini, sabut kelapa yang sebelumnya kurang bernilai dapat diolah menjadi produk yang bermanfaat, sekaligus berpotensi memberikan nilai tambah ekonomi bagi masyarakat
