scholarly journals Kinerja Mesin Pemisah Potongan Tangkai dan Daun Teh

2018 ◽  
Vol 7 (3) ◽  
pp. 160
Author(s):  
Agus Sutejo ◽  
Sutrisno Suro Mardjan ◽  
Wawan Hermawan ◽  
Desrial Desrial
Keyword(s):  
Raw Materials ◽  
Physical Property ◽  
Terminal Velocity ◽  
Combined Treatments ◽  
Tea Leaves ◽  
Suction Velocity ◽  
Average Mass ◽  
Aerodynamic Properties ◽  
The Difference

The quality of dried tea depends on the condition of raw materials and processing methods. The problem in the tea processing is the mixture of pieces of stalks and leaves. This research aims to examine the performance of stalks and leaves machine separator based on the difference of suction velocity and the terminal velocity of the material. The separator was designed according to the physical and aerodynamic properties of tea leaves. The performance of the separator was done by calculating the separating efficiency of five combined treatments (P, P1a, P1b, P0a, and P0b) and calculating the separating capacity with three feeding treatments (0.4 kg/sec, 0.5 kg/sec, and 0.6 kg/sec). Physical property observation of the tea leaves obtained an average mass 0.143 kg/m² which means the theoretical suction pressure needed is about 1.4 Pa. The actual terminal velocity measured as 7.5 m/sec for the stalk pieces and 3.0 m/sec for the leaf pieces. The optimum separating efficiency was obtained at P treatment, it was about 97.6 %, with average suction ir velocity 3.15 m/s. Optimum separating capacity was obtained about 354.29 kg/hour.

scholarly journals INTEGRASI SERVQUAL DAN SIX SIGMA UNTUK PENINGKATAN KUALITAS LAYANAN PELANGGAN UKM PRODUK KERAJINAN KABUPATEN REMBANG

2020 ◽  
Vol 15 (1) ◽  
pp. 19-34
Author(s):  
Agustina Widodo ◽  
Muhammad Zaky Wahyuddin Azizi
Keyword(s):  
Six Sigma ◽  
Raw Materials ◽  
Business Management ◽  
Waiting Room ◽  
Good Ability ◽  
Strategic Location ◽  
Medium Enterprise ◽  
The Difference ◽  
And Control

The SME (small medium enterprise) sector has a sufficient role, the quality of service is now an important priority for businessman  in understanding the needs and desires their customers. Comparison of quality can be seen from the difference between the assessment of business management with the assessment of customers, then the concept of six sigma  are DMAIC (define, measure, analyze, improve and control) is the structured methodology used to reduce the level of error in providing services to customers. There are a number of problems faced by dewan kerajinan nasional daerah (dekranasda) SME’s: business management is still very simple, the average human resource has a low level of education, does not have a good ability to market the products produced, financial limitations, limited access to raw materials and limited technology. The analysis results obtained that there are 5 complaints that most complained by consumers are less strategic location, lack of attention to individual customers, brochures and service facilities are inadequate, service is still long and the lack of waiting room facilities. the planned improvement that will be carried out is to improve services by using technology facilities, improve the quality of customer waiting room services, structuring the availability of brochures and information.

scholarly journals Aerodynamic properties of six organo-mineral fertiliser particles

2013 ◽  
Vol 44 (2s) ◽  
Author(s):  
Marcello Biocca ◽  
Pietro Gallo ◽  
Paolo Menesatti
Keyword(s):  
Image Analysis ◽  
Wind Tunnel ◽  
Working Conditions ◽  
Slow Release ◽  
Morphological Characteristics ◽  
Aerodynamic Characteristics ◽  
Terminal Velocity ◽  
Analysis Procedure ◽  
Aerodynamic Properties

Agricultural fertilisers are generally applied by means of centrifugal disk spreaders. The machinery, the working conditions and the physical characteristics of fertilizers (including the aerodynamic characteristics of particles) may affect the behaviour of particles after the discarding from the spreader. We investigated the aerodynamic properties of organo-mineral fertilisers (a class of slow release fertilisers that are less investigated since they are relatively new in the market) using a vertical wind tunnel similar to an elutriator. In the same time, the morphological characteristics of individual fertilizer particles were measured by means of an image analysis procedure. In the study we compare six different fertilisers and we discuss the suitability of the employed methods. The results provide the terminal velocity – Vt – (the velocity value that overcome the gravity force of the particles) of the particles, ranging from 8.60 to 9.55 m s-1, and the relationships between Vt and some physical properties (mass, shape, dimensions) of the fertilizers. Moreover, the results of field distribution trials show the behaviour of the tested fertilizers during practical use. Such data can contribute to enhance the quality of application of these products in field.

scholarly journals Penggunaan Mikroorganisme Lokal dari Berbagai Formula terhadap Kualitas Biourine Kambing Terfortifikasi

2020 ◽  
Vol 8 (1) ◽  
pp. 1-7
Author(s):  
K. Mahmuda ◽  
Salundik ◽  
P. D. M. H. Karti
Keyword(s):  
Waste Treatment ◽  
Raw Materials ◽  
Organic Fertilizer ◽  
Positive Control ◽  
Negative Control ◽  
Bamboo Shoots ◽  
P Content ◽  
Aerobic System ◽  
The Difference

Biourine which is widely known as liquid organic fertilizer is one of the alternative efforts in waste treatment, especially animal urine to become something that is more beneficial for the environment. One of the biourine benefit is to maintain soil fertility which is can increase farmer productivity. The aim of the research was to test the quality of local microorganisms (MOL) and goat biourine which had been made in different formulas, and to determine the best biourine in kale. MOL was made by four main raw materials, they are cow’s rumen, golden snail, bamboo shoots, and banana weevil. The making of MOL needed 14 days of processing in aerobic system. Then, 10% of MOL that had been made was added to goat urine to make biourine in the same aerobic system. The best biourine will be tested by watering kale. From the observations, it was obtained that the composition of raw materials from existing formulas affects the quality of the MOL produced. The quality affects the final result of the biourine. The best selected biourine has N and P content of 2.23% and 0.11% respectively. The amount of biourine applied to water kale was 0.4 ml / planting hole. The result showed kale which was watered by biourine treatment produced higher production levels than negative control plants but the difference was not significant. But these results was still lower than positive control by the treatment of chemical fertilizers.

scholarly journals ANALISIS KUALITAS PADA PRODUKSI LABELSTOCK KERTAS HVS DI PT “X”

Heuristic ◽  
2016 ◽  
Vol 11 (01) ◽  
Author(s):  
Tjahjo Purtomo
Keyword(s):  
Human Factors ◽  
Control Chart ◽  
Manufacturing Industry ◽  
Raw Materials ◽  
Product Label ◽  
Accuracy And Precision ◽  
The Difference ◽  
Quality Of Products ◽  
Release Liner

PT. "X" one of the manufacturing industry engaged in the manufacture of paper labels,release liner and packaging tape, and while also receiving another product label orders. Theprocess of coating on this company using wet glue placed on release paper is then dried using adryer, so that the glue dries quickly, and then combined with certain items. In order toguarantee the quality of products, the company implemented a control chart X and R are used tomeasure the uniformity of the thickness of the glue on all sides, and the cause and effectdiagram is used to infer the cause of the difference in the thickness of the glue on labelstockproduction.With the above method, the obtained results that the Lower Control Limit 20 LimitControl Over 22, and the target of 21. Cp value of 0.19 (Cp < 1) means that the process is notcapable. While the resulting Cpk value of 0.05 (Cpk< 1), we conclude that the thickness of theglue is not capable or not of accuracy and precision. The cause of differences in the thickness ofthe glue is supposedly 5 factors, namely human factors, raw materials, machines, methods andenvironment. The cause of differences in the thickness of the glue is supposedly 5 factors,namely human factors, raw materials, machines, methods and environment.Kata kunci : Pengendalian Kualitas, Labelstock

scholarly journals Evaluation of different methods of control of quality of grain raw materials

2020 ◽  
Vol 22 (97) ◽  
pp. 39-42
Author(s):  
G. V. Kushnir ◽  
I. I. Zraylo ◽  
T. R. Levytskyy ◽  
B. V. Gutyj ◽  
G. Y. Fedor ◽  
...  
Keyword(s):  
Research Methods ◽  
Crude Protein ◽  
High Efficiency ◽  
Raw Materials ◽  
Agrarian Economy ◽  
Technical Developments ◽  
The Difference ◽  
Barley Grains ◽  
Corn Grains

The article highlights the need of the control of the quality of grain raw materials, because the increasing of the competitiveness of the grain industry is one of the leading in the national agrarian economy of Ukraine and largely its determines the place in the global agrarian market. In competition, only those enterprises retain and improve their position in the market, which consistently work to support and improve the quality of the products according to the important indicators for consumers. The main indicators of the grain quality are: protein content, and also humidity, smell, impurities, crude fat, ash content, etc. Todays, domestic enterprises introduce into the manufacturing the unique scientific and technical developments, which allow quickly and qualitatively conduct the research of raw materials and finished products. However, sometimes when controlling grain raw materials on such enterprises where the modern (spectrometric) research methods are used, some physico-chemical parameters do not coincide with the normative (arbitration) research methods. Therefore, in a comparative aspect were investigated samples of soybean, corn, barley and rapeseed by some qualitative indicators, such as humidity, crude protein and fat. By comparing two methods, it was found out that in the soybean and corn samples, both the arbitrage and the spectrometric methods were almost identical. In some rapeseed and barley samples, the difference between the same samples was small and was not more than 4.8 %. In determining the crude protein in the same samples in soybeans, the difference was from 0.9 to 5.1 %, corn grains – 2.6–5.6 %, barley grains – 0.9 to 5.8 %, rapeseed – 1.4–9.8 %. In determining the fat content of identical samples in soybeans, the difference was small and ranged from 3.8–6.2 %, corn grains 2.6–4.8 %, barley grains – 4.2–6.4 %, seeds rapeseed – 7.1–11.6 %. In the conducted interlaboratory researchers, in determining moisture, crude protein and fat in grain and oil raw materials, by both arbitration and spectrometric methods it was found out, that the results of the studies were within the statistically probable error, which indicate on the high efficiency the last one. In addition, the values of qualitative indicators of the researches samples responses the requirements of regulatory documents.

scholarly journals ANALISA LOGAM BERAT, KADAR GARAM DAN Salmonella PADA IKAN LOMEK (Harpodon nehereus) BIANG (Ilisha elongata) ASIN KERING

2020 ◽  
Vol 7 (1) ◽  
pp. 27
Author(s):  
Aulia Azka ◽  
Putri Wening Ratrinia
Keyword(s):  
Heavy Metal ◽  
Salt Concentration ◽  
Metal Salt ◽  
Raw Materials ◽  
Test Results ◽  
Salted Fish ◽  
Salt Addition ◽  
Safe Limit ◽  
The Difference

Lomek and biang fish are types of fish commonly used as raw materials for making salted fish in Dumai. Industrial activity in Dumai can influence on heavy metal content in dried salted fish. In addition, the requirements for the quality of salted fish are salt concentration and Salmonella test. The aim of this study were to determine heavy metal (Pb and Cd), salt concentration, and Salmonella test in dried salted fish. The study was carried out the preparation of raw materials and the manufacture of salted fish using dry salting method with a salt concentration of 5%, 10% and 15% for lomek and biang fish. The second was the analysis of heavy metal, salt concentration, and Salmonella test. The addition of 10% salt concentration to Lomek fish was the highest result for Pb (1,48± 0,01 ppm), while all samples were not identified for Cd levels. The highest salt concentration was L3 that was 22,45%, while for Salmonella test results all samples were negative. Based on the results, it was concluded that Pb contamination passed the safe limit, while Cd was not detected. The difference in salt addition gave an effect on the salt concentration for dried salted lomek and biang. Salmonella were not found in all salted fish samples.Keywords : Food safety, pathogen, product quality, salted method 

scholarly journals KARATERISTIK SIFAT FISIKA BAMBU TALI (GIGANTOLOCHLOA APUS KURZ ), SEBAGAI BAHAN BAKU BAMBU KERAJINAN

2020 ◽  
Vol 3 (1) ◽  
pp. 69
Author(s):  
Febriana Tri Wulandari
Keyword(s):  
Moisture Content ◽  
Physical Properties ◽  
Dimensional Stability ◽  
Raw Materials ◽  
Physical Property ◽  
Axial Direction ◽  
Volume Density ◽  
Poor Quality ◽  
Bamboo Species

The centre of bamboo crafts in Gunung Sari District is the largest bamboo centre in West Lombok Regency. One of the bamboo species which is usually used as raw materials is tali bamboo. Studies of physical properties of this bamboo have not been carried out resulting poor quality of bamboo crafts. The physical property was essensial information which would be used for enhancing the products because it correlated with dimensional stability of the bamboo. The objectives of this study were to identify the physical properties of the bamboo with reference to the axial direction. The experiment design was complete random design employing the axial directions (bottom, middle, and top portions) as treatments. The statistical analyses were Anova with range tests at α = 5%. The results showed that the physical properties were: fresh moisture content 51-119.82%; air-dried moisture content 13.03-15.04%; fresh volume density 0.51 – 0.72; air-dried volume density 0.62 – 0.75; oven volume density 0.63 – 0.78. Axial directions of the physical properties were not significantly different except for the fresh moisture content. Therefore all portions of tali bamboo (bottom, middle, and top portions) could be utilized as raw materials for bamboo crafts.

scholarly journals KAJIAN KARAKTERISTIK FISIK, MEKANIK DAN AERODINAMIK DAUN TEH HASIL PETIKAN YANG TELAH DILAYUKAN

2020 ◽  
Vol 9 (3) ◽  
pp. 171
Author(s):  
Agus Sutejo ◽  
Mardjan Suro Sutrisno ◽  
Hermawan Wawan ◽  
Desrial Desrial
Keyword(s):  
Aerodynamic Characteristics ◽  
Terminal Velocity ◽  
Separation System ◽  
Tea Leaves ◽  
Yield Value ◽  
Leaf Yield ◽  
Stems And Leaves ◽  
Tea Leaf ◽  
Range Of Values

The design of the wilted tea stalk and leaf separation system aims to improve the quality of the tea produced especially by separating the tea leaves and stalks at the beginning of the process. Stages that are needed to be done include designing a chopper machine that is capable of chopping tea stems and leaves to a certain size and designing stem and leaf separation system with the pneumatic principle with suction. In this study, physical, mechanical and aerodynamic characteristics of tea leaves were measured. The result showed that force to release a leaf is in the range of values between 12.24-16.17 N smaller than the need for the cutting force of the stem and leaves and the greatest difference in force is achieved at a water content between 55 and 58% bb (leaves) and 66-68% bb (stalk). The leaf terminal velocity is <3 m s-1 while the tea terminal velocity is > 9 m s-1. Tea leaf yield value is very important as a reference in testing the performance of tea and tea leaf separator machines where the average leaf yield is 77.33% and the average stem yield is 22.67%. Keywords: characteristic of tea leaves, engineering, separation of tea leaves, withering of tea leaves

High-Speed Cropping of Rods and Wire with Superposition of Various Stress Conditions

2015 ◽  
Vol 651-653 ◽  
pp. 132-137 ◽  
Author(s):  
Robinson Henry ◽  
Mathias Liewald
Keyword(s):  
High Speed ◽  
Raw Materials ◽  
High Productivity ◽  
Geometrical Properties ◽  
Study Materials ◽  
Stress Superposition ◽  
The Difference ◽  
Further Development

In the manufacturing of mass products, material and energy costs are an important part of the total costs. Competitiveness in the production of raw materials can only be maintained if waste of material is minimized and a high productivity is ensured. An outcome of these efforts is the further development of conventional cropping. High-speed cropping is characterized by the cropping speed as far as tooling is concerned. The cropping tool is accelerated up to a blade speed of 8 to 10 m/sec. This increase in cropping speed influences the surface quality of the specimens.This paper is mainly focused on the experimental investigation into the high-speed cropping in bulk metal forming. The first part of this investigation presents a comparison between conventional and high-speed cropping to demonstrate the difference between both methods. In this case study, materials of different mechanical strength are examined. The produced specimens are analysed with an optical system (GOM ATOS) to determine their geometrical properties, such as end-face flatness, ovality, and the draw-in of the specimens. The second part examines stress superposition. Here stress is superimposed on the specimens during cutting to trigger off an earlier failure of the investigated material. High-speed cropping with stress superposition is aimed at reducing the draw-in of the investigated samples. The results of this will be compared with the results of the first part to show the difference between high-speed cropping with and without stress superposition.

Letter to the Editor: The Continuing Challenge of Evaluating RSD Impairment and Disability

1998 ◽  
Vol 3 (5) ◽  
pp. 8-10
Author(s):  
Robert L. Knobler ◽  
Charles N. Brooks ◽  
Leon H. Ensalada ◽  
James B. Talmage ◽  
Christopher R. Brigham
Keyword(s):  
Disability Evaluation ◽  
Body Part ◽  
Loss Of Function ◽  
Regulatory Requirements ◽  
Major Cardiac Event ◽  
Clinical Scenarios ◽  
Impairment Score ◽  
Occupational Activities ◽  
The Difference

Abstract The author of the two-part article about evaluating reflex sympathetic dystrophy (RSD) responds to criticisms that a percentage impairment score may not adequately reflect the disability of an individual with RSD. The author highlights the importance of recognizing the difference between impairment and disability in the AMA Guides to the Evaluation of Permanent Impairment (AMA Guides): impairment is the loss, loss of use, or derangement of any body part, system, or function; disability is a decrease in or the loss or absence of the capacity to meet personal, social, or occupational demands or to meet statutory or regulatory requirements because of an impairment. The disparity between impairment and disability can be encountered in diverse clinical scenarios. For example, a person's ability to resume occupational activities following a major cardiac event depends on medical, social, and psychological factors, but nonmedical factors appear to present the greatest impediment and many persons do not resume work despite significant improvements in functional capacity. A key requirement according to the AMA Guides is objective documentation, and the author agrees that when physicians consider the disability evaluation of people, more issues than those relating to the percentage loss of function should be considered. More study of the relationships among impairment, disability, and quality of life in patients with RSD are required.

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