scholarly journals Briquettes manufacturing: mechanisation of briquette productions at SME santan coco

2019 ◽  
Vol 4 (2) ◽  
pp. 187-191
Author(s):  
Saharman Gea ◽  
Diana Alemin Barus Diana ◽  
Elisa Julianti Elisa ◽  
Aditia Warman Aditia

The fabrication of briquettes is required to be introduced extensively to society in order to provide additional economic value for charcoal crafters to increase their income. The SME Santan Coco as partnership enterprise of community service under supervising of Universitas Sumatera Utara has been producing briquettes since 2018 resulted from waste of coconut milk production. However, the methodology of producing briquettes can be considered to be insufficient. The production is started by the addition of charcoal powder with adhesives compounds which is followed manual stirring. The moulding process involves by using a lever utilizing body-weight, which produces two briquettes. The charcoal powder is obtained by manually crushing the charcoal, so that its granular size is not uniform. The briquette production is very slow due to the equipment used produces two briquettes. On the other hand, the preparation of raw materials into the moulding equipment requires longer time, as well as removing the ready-to-use briquette from the mould. The prepared mixture must be printed immediately, so that the adhesive is not dried. The final product fabricated by the partner shows that the granular sizes are different which affects the density parameters, productions volume accounted for 50 kg per day. Therefore, a mechanism of briquette production is proposed and introduced to the partner, which involves from charcoal breaking, mixing and molding briquettes. A charcoal crusher uses a hammer mill system with 12 eyes, equipped with a filter. The mixing of adhesive substances utilizes a ribbon blade mixing system, while the briquette printing is designed with a screw system. After being implemented, a very significant increase in production up to 500 kg of wet briquettes per day with higher density and more uniform as well as neater granular size has been obtained.

Clay Minerals ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 453-465 ◽  
Author(s):  
I. Gonzalez ◽  
E. Galan ◽  
A. Miras ◽  
P. Aparicio

AbstractAn attempt has been made to assess new potential applications for the Bailén clays, traditionally used for manufacturing bricks, based on mineralogical, chemical, particle size, plasticity and firing results. Raw materials and mixtures used by the local factory were selected and tested with the addition of some diatomite, feldspar or kaolin. Based on their properties, clay materials from Bailén might be suitable for making porous red wall tiles, clinker, vitrified red floor tiles and porous light-coloured wall tiles by pressing; the first could be manufactured from the raw materials and mixtures currently used by the local manufactures. On the other hand, stoneware shaped by extrusion, such as perforated bricks, facing bricks and roofing tiles, can be also manufactured from the mixtures used at the factory if they contain 20-25% carbonate and small amounts of iron oxides; lightweight bricks require black and yellow clays with diatomite.


2019 ◽  
Vol 2 (3) ◽  
pp. 191
Author(s):  
Buyung Adi Dharma ◽  
Madziatul Churiyah ◽  
Yuli Agustina ◽  
Agung Winarno

Tujuan dari pengabdian masyarakat ini adalah Peningkatan pengetahuan dan keterampilan santri pondok pesantren salafiyah Al-Azhar, desa Patok Picis, kecamatan Wajak, kabupaten Malang; Peningkatan kesadaran dalam pemanfaatan lahan pondok serta pengelolaan kebersihannya; Peningkatan wawasan santri sehingga dapat memunculkan motivasi dan semangat berwirausaha; Peningkatan nilai ekonomis sumber daya hasil alam yang ada di pondok pesantren. Metode yang digunakan  adalah ceramah, pelatihan dan pendampingan, konten yang dikembangkan mencakup, materi technopreneurship dan kewirausahaan, pengelolaan lingkungan, keterampilan memijat dan pembuatan nugget ikan produk pesantren. Hasil kegiatan ini wawasan wirausaha santri telah meningkat, demikian pula keterampilan dalam pemanfaatan potensi bahan baku lokal untuk produk yang lebih bernilai ekonomi serta pemahaman penerapan teknologi yang lebih efektif untuk penguatan karakteristik pesantren wirausaha.Kata kunci—technopreneurship, santri, wirausaha, pesantreneurship AbstractThe aim of this community service is to increase the knowledge and skills of Al-Azhar Salafiyah Islamic Boarding School students, Patok Picis village, Wajak sub-district, Malang district; Increased awareness in the utilization of cottage land and cleanliness management; Increased students’ knowledge so that it can bring up the motivation and enthusiasm of entrepreneurship; Increasing the economic value of natural resource resources in boarding schools. The methods used are lectures, training and mentoring, content developed includes, technopreneurship and entrepreneurship materials, environmental management, massage skills and the production of pesantren fish nuggets. As a result of this activity, the insight of santri entrepreneurs has increased, as has the skill in utilizing the potential of local raw materials for products that are more economically valuable and understanding the application of more effective technology to strengthen the characteristics of pesantren entrepreneurship.Keywords—technopreneurship, santri, entrepreneurship, pesantreneurship


2014 ◽  
Vol 3 (1) ◽  
pp. 57
Author(s):  
Abdelaziz Ghanemi ◽  
Besma Boubertakh

Pollution  represents  a  problem  common  to economy and  public  health. Indeed, the public health, because of the  divers’  type of pollutions, is facing divers challenges for which urgent solutions are required.The biology provides approaches not only to deal with the pollution, but also to  obtain  economic  benefits. Some living  organisms  have  particular metabolisms  that allow  them  to  assimilate  and  metabolite  the polluting agents  and thus reduce the  impact  they have on both environment  and public health.  On  the other  hand,  the  metabolic  properties  of  specific organisms make  the  polluting  elements raw materials to  synthesize  other elements that are benefits  for  economy  and  non-toxic  for  the  ecology and  the  biohealth. Yet, other options such as the regulations and laws are  required  to improve the efficiency of these approaches.


2007 ◽  
Vol 23 (1-2) ◽  
pp. 13-20
Author(s):  
Andrey Kurtenkov

It is related leg problems to the realization of the necessity of doing a detailed analysis of the phenotype correlations between body weight and exterior measurements. As a result of the study, lower coefficients have been obtained of the correlation between the girth of the tarso metatarsus on one hand, and the body weight and the girth behind the wings, on the other hand (respectively 0.563 and 0.608), compared with the one between the body weight and the girth behind the wings (0.898). It is advisable in the selection of ostriches to take into consideration the necessity of a higher phenotypic correlation between the girth of the tarso metatarsus on the one hand, and the body weight and the girth behind the wings on the other hand, with a view to preventing leg problems.


2019 ◽  
Vol 3 (2) ◽  
pp. 221-229
Author(s):  
Rr Retno Retno Sugiharti ◽  
Fitrah Sari Islami ◽  
Yulida Army Nurcahaya

Abstrak Kabupaten Magelang yang berada di lereng gunung dengan topografi wilayah yang bervariasi memiliki potensi pariwisata lokasi yang sangat besar. Namun sayangnya objek-objek wisata di Kabupaten Magelang rata-rata belum dikelola dengan baik. Melalui penelitian ini, ingin mengkaji salah satu objek wisata di Kabupaten Magelang yaitu Air Terjut Sekar Langit. Dengan pertumbungan jumlah kunjungan yang positif menunjukkan bahwa objek ini memiliki potensi untuk berkembang bila dikelola dengan baik. Menggunakan travel cost method, penelitian itu bertujuan untuk mengetahui  nilai ekonomi dari objek wisata Air Terjun Sekar Langit sehingga dalam jangka Panjang dapat digunakan sebagai pertimbangan Pemerintah dan Dinas terkait untuk mengelola sekaligus tetap melestarikan sumber daya alam yang ada di Air Terjun Sekar Langit, serta sebagai referensi untuk pengambilan kebijakan. Abstract Magelang Regency is on a mountainside with varied regional topography which has a very large tourism potential location. But unfortunately, tourist attractions in Magelang regency on average have not been managed well. Through this research, we want to examine one of the tourist attractions in Magelang Regency, which is the Waterfall of Sekar Langit. With the growth in the number of positive visits shows that this object has the potential to develop if managed properly. Using the Travel Cost Method, this study aims to analyze the economic value of the Sekar Langit Waterfall attraction. With the hope that the results of this study can be used as consideration for the Regional Government and related agencies to manage, but on the other hand the natural preservation of the Sekar Langit tourist attraction is maintained.  


Focaal ◽  
2004 ◽  
Vol 2004 (44) ◽  
pp. 72-86 ◽  
Author(s):  
Paola Filippucci

In France, the classic produit du terroir, the local product that with its mix of skill and raw materials embodies the distinctive tie between people and their terroir (soil), is cheese. Thus, when inhabitants of the Argonne say that it “does not even have a cheese”, they imply that it lacks a patrimoine (cultural heritage). On the other hand, they do make passionate claims about 'being Argonnais', conveying a marked recognition of, and attachment to, a named place in relation to which they identify themselves and others. Focusing on this paradox, this article will highlight certain assumptions regarding the definition of cultural heritage found in public policy.


1970 ◽  
Vol 8 (1) ◽  
pp. 13-15
Author(s):  
Md Jahangir Alam ◽  
Humaira Naushaba ◽  
Uttam Kumar Paul ◽  
Tahmina Begum ◽  
Sunjida Shahriah ◽  
...  

Context: Indomethacin is the most commonly and widely used nonsteroidal antinflammatory analgesic and antipyretic drug. Though it is effective drug in various diseases, indomethacin causes inhibition of spermatogenesis by lowering the pH of seminal fluid leading to infertility. On the other hand, vitamin E enhances spermatogenesis by increasing pH of the seminal fluid. Therefore, the present study was designed to observe the protective role of vitamin E on indomethacin induced low pH of seminal fluid in testicular damage. Objective: To observe the effects of vitamin E on indomethacin induced low pH of seminal fluid in testicular damage in Long Evans rats. Study design: An experimental study. Place and period of study: The study was carried out in the Department of Anatomy, Sir Salimullah Medical College, Dhaka in the period of August, 2005 to June, 2006. Materials and methods: Eightyfour mature Long Evans male rats were divided into four groups (I, II, III and IV). The rats of group I, II and III were treated with indomethacin at different doses and duration. Group IV rats were treated with indomethacin plus vitamin E at different doses for 49 days. The pH of seminal fluid were measured biochemically. Results: There was significant reduction (P<0.001) of pH of seminal fluid when the rats were treated with indomethacin at low (2 mg/kg body weight/day) and high (10 mg/kg body weight/day) doses for 7, 14 and 42 days, respectively. On the other hand, rats treated with indomethacin plus vitamin E for 49 days showed increase in pH of seminal fluid compared to other groups (P<0.001). Conclusion: It can be concluded from the study that vitamin E has potential role in the prevention of the antispermatogenic effects of indomethacin by increasing the pH of seminal fluid. Key words: seminal fluid; indomethacin; vitamin E   DOI: 10.3329/bja.v8i1.6103 Bangladesh Journal of Anatomy January 2010, Vol. 8 No. 1 pp. 13-15


1980 ◽  
Vol 35 (9-10) ◽  
pp. 726-728 ◽  
Author(s):  
Akihisa Nishimura ◽  
Michinobu Hashimoto ◽  
Katsunobu Konno ◽  
Yasuhiko Ohta ◽  
Satoshi Tahara ◽  
...  

Both protection and sensitization of Mice C57BL against 60Co γ-rays by sulfur-containing amino acid derivatives - S-alkyl-L-cysteines, S-alkyl-2-methyl-DL-cysteines and their hydantoin derivatives, and sulfoxides of these compounds - were examined. DL-5-Allylthiomethyl-5-methylhydantoin (150 mg/kg body weight) had a remarkable radioprotective effect. The survival ratio was 4.33 or above two times as much as that of L-cysteine. On the other hand, its sulfoxide had a radiosensitizing effects; survival ratio, 0.333.


1980 ◽  
Vol 95 (4) ◽  
pp. 518-522 ◽  
Author(s):  
W. Hahmeier ◽  
M. Fenske ◽  
L. Pitzel ◽  
W. Holtz ◽  
A. König

Abstract. Intravenous injection of 10.0 μg/kg body weight synthetic corticotropin (1-24 ACTH) into chronically cannulated boars resulted in significantly elevated plasma corticosteroid and testosterone levels between 20 and 140 min (corticosteroids) and 20–80 min (testosterone) after injection. Administration of lysine-vasopressin (LVP) at doses of 0.1, 0.2 and 0.4 IU/kg body weight elicited a significant increase of plasma corticosteroids between 20 and 40 min after injection; on the other hand, plasma testosterone concentrations tended to fall when compared to pre-treatment levels. From our results it can be concluded that exogenously applied ACTH can effectively stimulate the release of corticosteroids and testosterone. Intravenous administration of LVP results in significantly, although not maximally increased plasma corticosteroid concentrations; the release of endogenous ACTH induced by LVP injection, on the other hand, appeared to be too small to stimulate testosterone release significantly.


2008 ◽  
Vol 1132 ◽  
Author(s):  
B. Chen ◽  
P. D. Wu ◽  
H. Gao

ABSTRACTThe underlying mechanisms of gecko adhesion have been investigated through modeling of the three-level hierarchical microstructures under gecko's toe [1]. At the bottom of hierarchy, we show that the peeling strength of a spatula pad for attachment can be 10 times larger than that for detachment. At the intermediate level of hierarchy, we show that the 10 times difference in the peeling strength of a spatula pad for attachment and detachment leads to a 100 times difference in adhesion energy at the level of seta. At the top of hierarchy, the attachment of a gecko toe is modeled as a pad under displacement controlled pulling, which yields an adhesive strength more than sufficient for gecko's body weight; On the other hand, the detachment is modeled as a pad under peeling, giving rise to a negligible peel-off force. The present study reveals that the hierarchical microstructures play critical roles in providing gecko with robust attachment and easy detachment.


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