scholarly journals PERANCANGAN PROTOTYPE ALAT PENGURANG KADAR AIR PADA MADU KAPASITAS 5 LITER

2019 ◽  
Vol 4 (1) ◽  
pp. 47-56
Author(s):  
Achmad Kusairi Samlawi ◽  
Wahyu Slamet Pamungkas
Keyword(s):  
National Standard ◽  
Air Content ◽  
Shaft Diameter ◽  
Steel Material ◽  
Horizontal Shaft ◽  
Stainless Steel Material ◽  
Standard Set ◽  
Impeller Type ◽  
Belt Transmission

The quality of Honey must meet the requirements set by the Indonesian National Standard (SNI) in 2004. In the standard set, the enzyme diastase function is at least 3 DN, hydroxymethylfurfural (HMF) maximum 50 mg / kg, maximum air content is 22% b / b, sugar reducing at least 65% b / b,asucrose maximum 5% b / b, acidity maximum 50 milliecivalents / kg, solids not up to maximum 0.50% b / b, maximumAash content 0.50% b / b (BSN), 2004) To meetAthese standards designedAa tool that willAreduce the air content in honey without damaging it as it is vaccinated at -70 -70 bar with temperatures below 40 ° C. With the results of the balance shows: (1) electric motor with power ¼ HP with 1400 rpm rotation. (2) V-belt transmission with large outside pulley dimensions = 231.3 mm, small outer plley = 104 mm. Using a v-belt with no. 44 in / 1118 mm. Horizontal shaft with dimensions of large pulley shaft diameter = 18 mm and small pulley shaft diameter = 15 mm. (3) Using a gearbox damper with a ratio of 1:40. (4) Stirrer shaft with 304 grade stainless steel material with a length of 975 mm and a shaft diameter of 40 mm. (5) Stirrer impeller with six blade impeller type with dimensions of diameter 1667, mm and thickness of 3 mm. (6) Vessels with cylindrical types and having a thickness of 2.5 mm, a diameter of 500 mm and a length of 500 mm. With an ellipsoid head type with dimensions of 520 mm in diameter, 125 mm in height and 2.5 mm in thickness. (7) Frame with a profile of mild steel profile dimension dimensions of 40 mm x 40 mm x 2.5 mm.

Process Optimization for Welding Stainless Steel Clad Material Based on Orthotropic Bridge Plates

2012 ◽  
Vol 178-181 ◽  
pp. 2066-2069 ◽  
Author(s):  
Ji Fang ◽  
Yong Zhi Li
Keyword(s):  
Stainless Steel ◽  
Railway Bridge ◽  
Welding Quality ◽  
Grass Roots ◽  
Steel Material ◽  
Stainless Steel Material ◽  
Under Construction ◽  
First Time ◽  
Welding Stainless Steel

Clad plates welding of stainless steel welding on interlayer between grass roots and the transition layer is a key technology.Structure and properties of welded joints is very uneven,and there have often welding repair cracks. Clad plates of stainless steel material is used to weld under construction in the Southern link’s railway bridge for the first time at home .However, there occurs welding warpage of the convex parts and roughness appears excessive on the overall clad plates and severe deformation, and the quality of railway bridge is affected seriously. Reasons of the impacting welding quality are analyzed and specific measures to control them are proposed and the construction program is optimized.the efficiency and quality of welding can be improved ,a good foundation for the compound plates welding is layed,it will be contribute to ensure the overall quality of the welding quality of railway bridge especially the use of clad plates.

DAYA SAING EKSPOR PRODUK CPO INDONESIA DAN POTENSI HILIRISASI DIOLAH MENJADI BIODIESEL

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Danar Agus Susanto
Keyword(s):  
Palm Oil ◽  
Comparative Advantage ◽  
Global Market ◽  
National Standard ◽  
Revealed Comparative Advantage ◽  
Crude Palm Oil ◽  
A Value ◽  
World Demand ◽  
Domestic Use

ABSTRACTIndonesia is the world's largest producer of crude palm oil (CPO). Even so, the trend of international trade in Indonesian CPO products has decreased in the last 10 years with a value of -10.19%. The decline in world demand for CPO can be dealt with by utilizing CPO as a biofuel for domestic use, like biodiesel. The purpose of this study is to determine the competitiveness of Indonesian CPO in global trade and determine the parameters of the quality requirements of CPO and biodiesel. The competitiveness analysis method uses the Revealed Comparative Advantage (RCA) method, while the analysis of the potential quality of CPO as a biofuel is carried out by analyzing the Indonesian National Standard (SNI). CPO trade in the global market is controlled by Indonesia with a market share of 50% and Malaysia 25.6%, with the declining trade trend in the last 10 years relatively (2010-2019) of -6.91%. The level of competitiveness of Indonesian CPO products in 2019 is very strong, but on average in the last 10 years, the level of competitiveness of Indonesian CPO is no better than that of Malaysia. Indonesia has SNI 01-2901-2006 and SNI 7182: 2015 as a determinant of the quality of CPO and biodiesel products developed in Indonesia so that the CPO and biodiesel produced fullfil sacurity and safety aspects when used by consumers.Keywords: crude palm oil (CPO), competitivenessv, quality, Indonesian National Standard (SNI) ABSTRAKIndonesia merupakan negara produsen minyak kelapa sawit mentah/ Crude Palm Oil (CPO) terbesar di dunia. Meskipun demikian, tren perdagangan internasional produk CPO Indonesia mengalami penurunan dalam sepuluh tahun terakhir dengan nilai -10,19%. Penurunan permintaan dunia terhadap CPO, dapat disiasati dengan memanfaatkan CPO sebagai bahan bakar nabati untuk keperluan dalam negeri sebagai biodiesel. Tujuan penelitian ini adalah mengetahui daya saing CPO Indonesia dalam perdagangan global dan mengetahui parameter persyaratan mutu CPO dan biodiesel. Metode analisis daya saing menggunakan metode Revealed Comparative Advantage (RCA), sedangkan analisis potensi kualitas CPO sebagai biofuel dilakukan dengan menganalisis Standar Nasional Indoensia (SNI). Perdagangan CPO dalam pasar global dikuasai oleh Indonesia dengan pangsa pasar 50% dan Malaysia 25,6%, dengan tren perdagangan relatif menurun dalam 10 tahun terakhir (2010-2019) sebesar -6,91%. Tingkat daya saing produk CPO Indonesia pada tahun 2019 sangat kuat, namun secara rata-rata dalam 10 tahun terakhir, tingkat daya saing CPO Indonesia tidak lebih baik dari Malaysia. Indonesia memiliki SNI 01-2901-2006 dan SNI 7182:2015 sebagai penentu kualitas produk CPO dan biodiesel yang dikembangkan di Indonesia, sehingga CPO dan biodiesel yang dihasilkan memenuhi aspek keamanan dan keselamatan ketika digunakan oleh konsumen.Kata kunci: crude palm oil (CPO), daya saing, kualitas, Standar Nasional Indonesia (SNI)

Особенности стандартизации химических реагентов для подготовки питьевой воды (на примере коагулянта полиоксихлорида алюминия)

2020 ◽  
Author(s):  
G. Samburskii ◽  
O. Ustinova ◽  
Svetlana, Leont’eva
Keyword(s):  
Organic Contaminants ◽  
Disperse Medium ◽  
Metal Salts ◽  
National Standard ◽  
Process Technology ◽  
Technical Regulation ◽  
Uniform Assessment ◽  
Dissolved Form ◽  
Polyaluminium Chloride

Распространенным технологическим приемом удаления из воды грубодисперсных примесей, находящихся во взвешенном состоянии, а также коллоидных органических загрязнений, присутствующих в растворенном виде, является процесс коагуляции. Эффективными коагулянтами для систем с водной дисперсионной средой являются соли поливалентных металлов. Цель работы заключалась в создании нового государственного стандарта, предназначенного для обеспечения единообразной оценки качества коагулянтов. Рассмотрена область применения коагулянтов в процессе водоподготовки и проведен их сравнительный анализ. Показана необходимость унификации в области процессов контроля качества коагулянтов. Сформулированы общие требования к контролю качества полиоксихлорида алюминия. Представлен разработанный и утвержденный новый национальный стандарт ГОСТ Р 58580-2019 Полиоксихлорид алюминия. Технические условия , который учитывает требования санитарного законодательства, технического регулирования, безопасности процессов производства и транспортировки полиоксихлорида алюминия.Coagulation process has been a widespread process technology for removing coarse suspended impurities from water, as well as colloidal organic contaminants present in dissolved form. Polyvalent metal salts are effective coagulants for the systems with aqueous disperse medium. The purpose of the work was developing a new state standard to provide for a uniform assessment of the quality of coagulants. The scope of coagulants in the process of water treatment is considered and their comparative analysis is carried out. The general requirements to the control of polyaluminium chloride quality are formulated. The developed and approved new national standard GOST R 58580-2019 Polyaluminium chloride. Technical conditions is presented that takes into account the requirements of sanitary legislation, technical regulation, safety of the processes of production and transportation of polyaluminium chloride.

scholarly journals Health-related quality of life in patients with chronic hepatitis C treated with sofosbuvir-based treatment at 1-year post-sustained virological response

2021 ◽  
Author(s):  
Akio Miyasaka ◽  
Yuichi Yoshida ◽  
Akiko Suzuki ◽  
Yasuhiro Takikawa
Keyword(s):  
Quality Of Life ◽  
Hepatitis C ◽  
National Standard ◽  
Health Related Quality ◽  
Related Quality ◽  
Health Related ◽  
Standard Values ◽  
Chronic Hcv

Abstract Purpose Long-term effects on patient health-related quality of life (HRQoL) after direct-acting antiviral (DAA) treatment for hepatitis C virus (HCV) are unknown. We assessed the impact of DAA-mediated HCV clearance on HRQoL from DAA initiation to 1 year after confirmed sustained virological response at 24 weeks post-treatment (SVR24). Methods HRQoL was evaluated using the eight-item Short Form Health Survey (SF-8). Chronic HCV-infected patients were treated for 12 weeks with sofosbuvir-based DAAs. SF-8 was administered at baseline, treatment cessation, SVR24, and 1-year post-SVR24. Results A total of 109 chronic HCV-infected patients were enrolled. The average SF-8 scores were higher than the Japanese national standard values for bodily pain (BP) and mental health at baseline and for general health at 1-year post-SVR24. None of the SF-8 scores differed significantly between baseline and 1-year post-SVR24. Regarding age, sex, liver status, and treatment regimen, the SF-8 scores at 1-year post-SVR24 were affected by only age; individuals aged < 65 years had significantly higher physical component score (PCS), physical functioning, role physical, and BP scores than older individuals. In the multivariable analysis, only age of ≥ 65 years was significantly associated with influencing PCS at 1-year post-SVR24. However, no significant factors were identified for mental component score. Conclusion Upon long-term assessment, although more factors trended higher than national standard values at 1-year post-SVR24 than at baseline, there were no significant changes within factors. As PCS tended to be associated with age, patients aged ≥ 65 years should be carefully monitored for PCS.

scholarly journals SIFAT FISIKOKIMIA HAND AND BODY CREAM DENGAN PEMANFAATAN EKSTRAK ETANOL BUNGA GEMITIR (Tagetes erecta L.) DAN BUNGA PACAR AIR MERAH (Impatiens balsamina L.) DARI LIMBAH CANANG

2017 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Dewa Ayu Ika Paramitha ◽  
James Sibarani ◽  
Ni Made Suaniti
Keyword(s):  
Antioxidant Activity ◽  
Physicochemical Properties ◽  
National Standard ◽  
Tagetes Erecta ◽  
Basic Formula ◽  
Impatiens Balsamina ◽  
Ethanol Extracts ◽  
Tagetes Erecta L ◽  
Microbial Numbers

ABSTRAK: Pada penelitian ini dilakukan pengembangan formula sediaan hand and body cream dengan memanfaatkan sumber antioksidan yang dimiliki oleh dua jenis ekstrak etanol yaitu ekstrak bunga pacar air merah (Impatiens balsamina L.) dan bunga gemitir (Tagetes erecta L.) dengan taraf perlakuan sebesar 1% dari masing-masing ekstrak (FPM dan FG) dan campuran 0,5% ekstrak pacar air merah dan 0,5% ekstrak gemitir (FCPMG). Pengujian terhadap  produk dilakukan pada sifat fisikokimia  meliputi pH, viskositas, aktivitas antioksidan, angka lempeng total mikroba, dan ukuran partikel. Berdasarkan hasil pengujian produk hand and body cream yang dihasilkan memiliki antioksidan yang cukup tinggi sebagai produk perawatan tubuh dengan penambahan 1% ekstrak etanol pacar air merah, gemitir dan campuran dari kedua ekstrak etanol. Kualitas produk hand and body cream yang dihasilkan baik dan memenuhi standar mutu SNI dari aspek nilai pH, viskositas, dan nilai ALT. Warna yang dihasilkan mulai dari warna kuning kemerahan sampai dengan warna kuning, dan partikel yang dimiliki oleh produk adalah nanopartikel dengan sistem polidispersi. ABSTRACT: Formulations of hand and body creams using ethanol extracts of flowers of red Impatiens balsamina L. And Tagetes erecta L. As antioxidant sources have been developed.  One percent of  extracts (FPM and FG) and the mixture of 0.5% each extracts (FCPMG) were added to the basic formula. The analysis of physicochemical properties of the products was conducted including pH, viscosity, antioxidant activity, the size of the particles, and total microbial plate numbers. Based on the results, the quality of the hand and body creams meet the national standard of Indonesia (SNI) regarding to pH, viscosity, and the total microbial numbers. The colours of the hand and body creams resulted are reddish yellow to yellow with polydispersion nanoparticles.

Frying oils quality control: necessity for new approach of supervision

2018 ◽  
Vol 120 (2) ◽  
pp. 490-498 ◽  
Author(s):  
Ebrahim Ahmadi ◽  
Mohammad Mosaferi ◽  
Leila Nikniaz ◽  
Jafar Sadegh Tabrizi ◽  
Mohammad Asghari Jafarabadi ◽  
...  
Keyword(s):  
Fast Food ◽  
Edible Oils ◽  
Standard Procedure ◽  
Frying Oil ◽  
National Standard ◽  
Frying Oils ◽  
New Approach ◽  
Content Type ◽  
Cooking Oil

Purpose The purpose of this paper is to investigate the quality of the frying oil used in restaurants, fast food establishments, and confectionary stores. The compliance of used frying oils with the quality standards as determined by the peroxide value (PV) and the total polar materials (TPMs) is investigated by analyzing 375 samples of oil. Design/methodology/approach The PV was measured according to the national standard procedure number 4179, while the TPM was determined using a Testo 270 cooking oil tester. Frying oils with a PV>5 mEq/kg and a TPM>25 percent were considered to be non-edible. For a comparison of groups, the Mann-Whitney and Spearman correlation tests were used, and p<0.05 was considered significant. Findings The maximum TPM and PV recorded for frying oils in fast food restaurants were 97.5 percent and 77.9 mEq/kg, respectively. The results also revealed that 60 percent of samples were non-edible according to the TPM, while 58.9 percent of the oil samples were non-edible because of the PV. TPM and PV correlated well with each other (r=0.99, p<0.001) and with oil replacement intervals (r=0.90, p<0.001). The relationship between the TPM and PV was stronger in the polynomial model than the linear model. The following equation was obtained: peroxide (mEq/kg oil)=0.0043 TPM2 (%)+0.1587 TPM (%)–0.6152. Originality/value Considering the current limitations in official supervision by health authority, on-site self-monitoring of the TPM using the Testo 270 cooking oil tester by sellers as a solution seems a new approach. Food stores, restaurants, and confectionary stores should be equipped with TPM analyzers to determine the quality of the frying oil and the timely replacement of non-edible oils.

scholarly journals PURIFICATION OF BIODIESEL USING RICE STRAW AND DIOSCOREA ALATA STARCH AS NATURAL ADSORBENTS

2019 ◽  
Vol 19 (1) ◽  
pp. 12-17
Author(s):  
Yulidar Yulidar ◽  
Saiful Saiful ◽  
Ilham Maulana
Keyword(s):  
Rice Straw ◽  
Acid Value ◽  
National Standard ◽  
Dioscorea Alata ◽  
Potassium Oleate ◽  
Natural Adsorbents ◽  
Washing Method ◽  
Initial Content

Janeng starch (Dioscorea Alata) and rice straws are developed to be used as adsorbents in dry washing method to purify crude biodiesel. In this study, we evaluate the potential of rice straw and janeng starch as natural adsorbents in the purification of biodiesel that replace the role of water in absorbing contaminants from biodiesel. The SEM characterization results show that the starch adsorbent and rice straw has an open and porous surface and is evenly distributed for janeng starch. Both adsorbents, either the janeng starch or rice straw, can be applied for the purification of biodiesel. The quality of biodiesel is influenced by the amount of adsorbents used in biodiesel purification. The effectiveness of the adsorbent is shown by the decrease in free fatty acids, alkali numbers, soap numbers and turbidity levels in biodiesel. The concentration of free fatty acid oil in crude biodiesel before the purification step was 0.769 mg-KOH/g, then decreased to 0.128 mg-KOH/g after the adsorption. This acid value had been very low and met the Indonesian quality national standard for biodiesel spesically 0.50 mg-KOH/g. Either janeng starch or rice straw adsorbent was able to reduce the soap content of potassium oleate to level 53.33 ppm from the initial content of 106.67 ppm. These two natural adsorbents can be the alternative adsorbents in the purification of biodiesel that employs dry washing method.

scholarly journals Estimation of quality of life after operative treatment for venous trophic ulcers of the lower extremities

2020 ◽  
Vol 87 (7-8) ◽  
pp. 33-37
Author(s):  
V. І. Liakhovskyi ◽  
R. М. Riabushko ◽  
А. V. Sydorenko
Keyword(s):  
Quality Of Life ◽  
Lower Extremities ◽  
Well Being ◽  
Operative Intervention ◽  
Group I ◽  
Subjective Estimation ◽  
Standard Set ◽  
Group Ii ◽  
Arteries And Veins

Objective. To study the patients’ quality of life after operative interventions, performed for venous trophic ulcers of the lower extremities. Маterials and methods. Analysis of data from 82 hospital cards of stationary patients was conducted. The patients were treated during 2010 - 2017 yrs in the Department of Vascular Surgery of Poltava Regional Clinical Hospital named after М. V. Sklifosovskyi for venous trophic ulcers of the lower extremities (Class С5 in accordance to Clinical-Etiological-Anatomical-Pathophysiological classification - СЕАР). The cause of trophic ulcers occurrence in all the patients was confirmed, using ultrasound duplex scanning of pelvic and the lower extremities arteries and veins. After conduction of certain conservative therapy the operative intervention, directed on elimination of the occurrence cause of trophic ulcers, was done. In all the patients the conduction of endovenous thermal ablations was not indicated, taking into account the anatomic peculiarities presented. Depending on the methods of operative interventions performed, the patients were distributed into two groups: Group I - 48 (58.5%) patients, surgical treatment of whom consisted of typical conventional open operative interventions, using a standard set of instruments, while Group II - 34 (41.5%) patients, to whom operative interventions were done, using elaborated own gadgets for the wounds edges opening, dissection and ligation of perforant and large subcutaneous veins, nontraumatic suturing of postoperative wounds. All operative interventions in the Group II patients were performed, using ultrasonographic support. In patients of both Groups a subjective estimation of quality of life was conducted, using questionnaire CIVIQ (Chronic Insufficiency Venous International Questions) for interviewing preoperatively and in 1, 3 and 6 mo postoperatively. Results. In accordance to data obtained, in patients of Group II the score in points of quality of life was higher, because in them the ulcers have healed faster, the pain sensation reduced, resulting in the psycho-emotional state improvement. Besides this, 29 (85.3%) patients of Group II have noted, that even while some symptoms persisted, their subjective signs reduced, leading to the well-being improvement. The conduction of treatment in accordance to own procedures proposed have promoted the raising of the quality of life score in patients, suffering trophic ulcers of the lower extremities. Conclusion. Application of gadgets of own elaboration during operative intervention on venous system of the lower extremities accelerates its performance and reduces traumaticity. This leads to reduction of the pain sensitivity intensity, raising of subjective estimation of quality of life in remote postoperative period.

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