scholarly journals The quality of pellets available on the market in Latvia: classification according en 14961 requirements

2012 ◽  
Vol 8 (-1) ◽  
pp. 36-40
Author(s):  
Vladimirs Kirsanovs ◽  
Lelde Timma ◽  
Aivars Zandeckis ◽  
Francesco Romagnoli
Keyword(s):  
Quality Control ◽  
Control System ◽  
Bulk Density ◽  
Calorific Value ◽  
Ash Content ◽  
Quality Control System ◽  
European Standard ◽  
Wood Pellets ◽  
Mechanical Durability

Abstract The objectives of the paper are to determine the quality of pellets available on the market in Latvia and to compare results with the European standard EN 14961-2:2011. The following parameters have been determined for samples of pellets: length, diameter, moisture and ash content, mechanical durability, lower calorific value and bulk density. The results showed that all samples confirm to the B class requirements of the standard. If one considers the A1 class - only 4 out of 9 samples fit the requirements. The paper emphasizes the need for the introduction of a quality control system for the wood pellets market in Latvia.

Quality Control System for Die Castings Based on Statistic Analysis

2012 ◽  
Vol 246-247 ◽  
pp. 918-923
Author(s):  
Xiao Fang Ruan
Keyword(s):  
Quality Control ◽  
Control System ◽  
Statistical Analysis ◽  
Die Casting ◽  
Ferrous Metal ◽  
Casting Machine ◽  
Casting Process ◽  
Quality Control System ◽  
Die Castings

Die casting technology is applied widely for mass production of non-ferrous metal parts. How to guarantee the quality of die castings is always a concerned topic. A quality control system for die casting machine was developed based on statistical analysis of technology parameters. Firstly the original data is acquired from die casting machine and the technology curves are displayed. Secondly, the technology parameters are identified automatically and a database of technology parameters is established. Thirdly, a statistical analysis based on the database is performed. The statistics parameters of expecta -tion and deviation are figured out and the probability distribution diagrams for technology parameters are displayed. Finally, Tolerances for technology parameters are figured out and then the system will monitor the die casting process according to the tolerances. A practical system realization in a die casting machine is demonstrated by its monitoring interfaces. Statistical information and on-line monitoring provided by this system are helpful to guarantee the quality of die castings.

scholarly journals ANALISIS SISTEM PENGAWASAN KUALITAS PRODUK PADA PT INDUSTRI SANDANG NUSANTARA UNIT PATAL SECANG DI MAGELANG JAWA TENGAH

2014 ◽  
Vol 5 (2) ◽  
Author(s):  
Listiani Listiani
Keyword(s):  
Quality Control ◽  
Control System ◽  
Production Process ◽  
Raw Materials ◽  
Employee Performance ◽  
Fish Bone ◽  
Quality Control System ◽  
Observation Data ◽  
And Control

This research is aimed to determine the quality control system of production process in PT Industri Sandang Nusantara unit Patal Secang, measure the efectivity of quality control system by using control P-Chart and determine factors that cause defect product. This research is explorative descriptive by case study method. Data used in this research is the procedure of production process and the number of defect product. Product used in this company is  thread R30/1 UW and R 40/1 UW PT Industri Sandang Nusantara Unit Patal Secang in 24 periods of production between April – Mei 2006. Data is collected by interview, documentation, and observation. Data is analyzed by control p-chart and fish bone diagram. The conclusion of this research are: (1) The quality control system which is consists of controlling raw materials, production process and final product is appropriate with the company’s standard; (2) the number of defect product R 30/1 UW is 26.956 bale with the average 0.0167; Control P Chart shows that there are three periods which are out of control. They are in April 30, Mei 5 and 21, 2006. (3) The number of final product R 40/1 UW is 2159 bale with the average 0.0214; control p-chart shows that there are tw periods which are out of control. They are ini Mei 6 and Mei 12, 2006. (4) Factors that cause defect product are obsolete machines, employee performance, control system, and raw materials. Based on that condition, management should impove the controlling of machines, improve motivation and commitment of the employee, improve the method of inspection and control the quality of raw materials.

Quality of Audit Services and Requirements of International Auditing Standards

Auditor ◽  
2018 ◽  
Vol 4 (11) ◽  
pp. 20-24 ◽  
Author(s):  
Н. Лосева ◽  
N. Loseva
Keyword(s):  
Quality Control ◽  
Control System ◽  
Professional Ethics ◽  
Audit Quality ◽  
Quality Control System ◽  
Auditing Standards ◽  
Audit Standards ◽  
International Audit

Th e article examines the concept of audit quality and its key elements, the requirements of international audit standards for audit quality control, elements of the quality control system, professional ethics and audit quality, and the content of the principle of independence.

scholarly journals Quality control system for meat processing enterprises in Ukraine: problems and ways of their solution

2019 ◽  
Vol 21 (90) ◽  
pp. 113-120 ◽  
Author(s):  
I. C. Stetsiv ◽  
I. I. Stetsiv
Keyword(s):  
Quality Control ◽  
Control System ◽  
Product Quality ◽  
Matrix Model ◽  
Raw Materials ◽  
Quality Control System ◽  
Meat Processing ◽  
Product Quality Control ◽  
Factors Of Influence

We have researched the scientists' opinions on the classification of product quality control and, based on the research conducted, organized a classification using a scientifically based approach. In general, the attention of scientists is paid to factors affecting the quality of products, while issues of the quality control system and factors of influence on it are insufficiently investigated. We have identified and grouped the factors influencing the quality control system of domestic meat processing enterprises by organizational, technical and subjective features. We conducted a survey of leading specialists of the most successful representatives of the meat processing industry today in order to identify the rating of negative factors. The most important factors of influence are the serviceability of equipment, devices, working tools and measuring instruments, through which the level of its quality is measured. We investigated the typical scheme of the production process, indicating the quality control points of domestic meat processing enterprises. We have found a lack of control of the value of meat raw materials at the entrance, which does not allow calculating with suppliers of raw materials, depending on the categories to which the pork actually belongs. We recommend that quality control be performed at the slaughter section between the 4th and 5th stages of the technological stage, namely after the sting of a pig with the use of special devices that are currently absent in domestic meat processing plants. The proposed measures to improve the quality control system will provide an opportunity for a comprehensive assessment of its quality and contribute to a reduction in the cost of production, resulting in increased profitability of enterprises, which suggests the feasibility of their use for meat processing enterprises in Ukraine. The three-dimensional matrix model of quality control of products of meat processing enterprises has been developed. The advantage of this model lies in the coherence of all parameters, as well as in establishing interrelationships and interdependencies between them. It is proved that the application of the proposed multivariate matrix model of product quality control in the indicated parameters enables to evaluate the quality of the meat-processing enterprise's products, taking into account all parameters of control, namely levels of control, types of control, stages of the control process and can be used for any subject of economic activity taking into account industry specifics and specific management objectives.

scholarly journals Pengaruh Ukuran Serbuk dan Penambahan Tempurung Kelapa Terhadap Kualitas Pelet Kayu Sengon

2019 ◽  
Vol 13 (2) ◽  
pp. 170
Author(s):  
Anindya Husnul Hasna ◽  
J. P. Gentur Sutapa ◽  
Denny Irawati
Keyword(s):  
Raw Materials ◽  
Cocos Nucifera ◽  
Calorific Value ◽  
Volatile Matter ◽  
Ash Content ◽  
Coconut Shell ◽  
Wood Pellets ◽  
Chemical Content ◽  
Effect Of Particle Size

Limbah industri kayu sengon menjadi salah satu bahan baku dalam pembuatan pelet kayu karena potensinya yang cukup besar. Akan tetapi pelet kayu sengon memiliki kerapatan serta nilai kalor yang rendah. Untuk meningkatkan sifat bahan bakar pelet kayu Sengon maka dilakukan pencampuran bahan dengan serbuk tempurung kelapa. Penelitian ini menggunakan bahan dari limbah serbuk gergaji sengon (Falcataria moluccana (Miq.)) dan limbah tempurung kelapa (Cocos nucifera). Masing-masing bahan dibuat partikel pada 3 kelompok ukuran yaitu 20-40 mesh, 40-60 mesh, dan 60-80 mesh. Ke dalam serbuk kayu sengon ditambahkan serbuk tempurung kelapa dengan penambahan 25%, 50%, dan 75%, sedangkan untuk kontrol (0%) adalah pelet kayu sengon tanpa penambahan tempurung kelapa. Pelet dibuat dengan menggunakan single-pelletizer pada suhu ruang dengan tekanan 100 kg/cm2. Hasil penelitian menunjukkan kombinasi bahan baku yang berbeda (sengon dan tempurung kelapa) memberikan pengaruh terhadap sifat fisika dan kimia pelet kayu. Semakin tinggi persentase campuran serbuk tempurung kelapa pada pelet kayu sengon maka semakin tinggi keteguhan tekan, karbon terikat, total karbon dan nilai kalor, sedangkan untuk kadar zat mudah menguap, kadar abu, kadar N, S, dan H semakin rendah. Pelet terbaik dihasilkan pada kombinasi penambahan tempurung kelapa 50% dengan ukuran 60-80 mesh yang memiliki sifat kadar abu yang rendah (0,79%) dan nilai kalor yang tinggi (5129,07 Kal/g), serta keteguhan tekan yang masih cukup tinggi (444,75N). Hasil tersebut memenuhi standar SNI 8021:2014.Effect of Particle Size and Addition of Coconut Cell on the Quality of Sengon Wood PelletAbstractThe waste of sengon (Falcataria moluccana) industry becomes one of the raw materials in the manufactured of wood pellets, because of its potency. However F. moluccana pellets posses low density and calorific value. To improve its properties, a materials mixing with coconut shell parcticles was conducted. This study used material from the waste of sengon (F. moluccana) sawdust and the waste of coconut (Cocos nucifera). Particles from those materials were made on 3 sizes which are 20-40 mesh, 40-60 mesh, and 60-80 mesh. 25%, 50%, and 75% of coconut shell were added into sengon sawdust, while woode pellets with no additions were used as a control. Pellets are made using single-pelletizer at room temperature with a pressure of 100 kg/cm2. The research results showed if the different material combination (sengon and coconut shell) gave significant effect to physical properties and chemical content of wood pellets. Higher percentage of coconut shell gives higher compressive strength, fixed carbon content, total of carbon, and calorific value, while volatile matter, ash content, N, S, and H content showed lower value. The best pellet was resulted from combination between coconut shell addition 50% and nesh size 60 – 80 which posses quite low ash content (0.79%) and high calorific value (5129.07 Kal/g), and high compression strength (444.75 N). This result has qualified the standard of SNI 8021:2014.

scholarly journals Manajemen Mutu Terpadu

2019 ◽  
Author(s):  
Hismul Habib ◽  
Rusdinal ◽  
Hade Afriansyah
Keyword(s):  
Quality Control ◽  
Control System ◽  
Continuous Improvement ◽  
Educational Institution ◽  
Quality Control System ◽  
Quality Of Education ◽  
Literature Study

Some of the problems faced by education one of them is the low quality of education at every level of the education unit. one way that can be done to overcome these problems is by improving the integrated quality control system in education. the method used is the literature study method. Integrated quality control is a philosophy of continuous improvement that can provide each educational institution with a set of practical tools to meet and increase the demands and expectations of all current and future customers

scholarly journals Pengendalian Mutu Terpadu dalam Pendidikan

2019 ◽  
Author(s):  
Hismul Habib ◽  
Rusdinal ◽  
Hade Afriansyah
Keyword(s):  
Quality Control ◽  
Control System ◽  
Continuous Improvement ◽  
Educational Institution ◽  
Quality Control System ◽  
Quality Of Education ◽  
Literature Study

Some of the problems faced by education one of them is the low quality of education at every level of the education unit. one way that can be done to overcome these problems is by improving the integrated quality control system in education. the method used is the literature study method. Integrated quality control is a philosophy of continuous improvement that can provide each educational institution with a set of practical tools to meet and increase the demands and expectations of all current and future customers

Construction of Analog Electronics Course Design a Study of Quality Control System

2012 ◽  
Vol 220-223 ◽  
pp. 3068-3071
Author(s):  
Jing Zhu Yu ◽  
Qiang Liu ◽  
Guo Hua Fu ◽  
Chun Yu Mao
Keyword(s):  
Quality Control ◽  
Control System ◽  
Curriculum Design ◽  
Teaching Practice ◽  
Course Design ◽  
Quality Control System ◽  
Theoretical Knowledge ◽  
Analog Electronics

Curriculum design is the key to teaching practice in analog electronics design, the curriculum design of analog electronics technology is a follow-up course who after completing the analog electronics. Through the steps of the design, welding, commissioning, and eventually completed the course requirements of the physical works. The design of analog electronic courses can let students understand the design process of an electronic works which for the tops of design, drawing, welding, assembling, testing, etc. Greatly improve the students’ practical ability. On the other hand, by the application of theoretical knowledge, students can also greatly improve the theory and solve practical problems. The ability to learn lots of knowledge can not be learned from textbooks. But at the same time, in curriculum design, will also facing unexpected contradictions, these contradictions show the contradiction between the analog electronics course design and quality control. Therefore, in order to solve the problems in the design of analog electronics courses, improve the quality of students who have completed their work. The curriculum design of analog electronics technology must have a strong quality control system compatible with the curriculum design.

scholarly journals Methodology for Preparation of Audit Entities to External Control of the Quality of Audit Services

2020 ◽  
Vol 88 (1) ◽  
pp. 116-130
Author(s):  
О. Ye. Lubenchenko ◽  
А. V. Lysiuk
Keyword(s):  
Quality Control ◽  
Control System ◽  
Professional Training ◽  
Financial Statements ◽  
The Body ◽  
Quality Control System ◽  
External Control ◽  
The Law ◽  
Quality Controller

The requirements to the system of control over the quality of audit services are analyzed, which are specified in the Law of Ukraine “Audit of Financial Statements and Auditing” from 21.12.2017 No 2258-VIII; Directive of the Ministry of Finance of Ukraine “Approval of the Procedure for Inspection of the Quality Control of Audit Services” from 29.08.2019 No 362; Resolution of the Council for Supervision over Auditing at the State Institution “The Body of Public Supervision over Auditing” from 30.08.2019 No 6/7/13 “Information Questionnaire of Auditing Entity”. It is demonstrated that the quality control system requires corrections of the following: responsibilities of administration and staff of auditing entities for use of the adopted intra-firm provisions on the quality control system, requirements of ISQC1, IAS, the Law of Ukraine “Audit of Financial Statements and Auditing”; the requirements to staff (quality controller, reviewer, assignment partner); identification of threats to the independence and the auditor’s response on the assessed threats; the requirements to reviews of complaints, complicated issues; issues related with non-stop professional training of auditors. Special attention of auditors need to be drawn to the fact that the policies and procedures of the quality control system do not have to be confined to the audit of financial statements, but have to apply to other assignments on giving confidence and related auditor services. Besides that, assessment of threats to the independence has to be conducted for non-auditor services specified in Article 6 of the aforementioned Law of Ukraine. The studies conducted by the author allowed to elaborate procedures for quality control of auditor services; measures to stimulate staff of auditing entities to scrutinize requirements to implementation of the quality control system; obligating documents of auditing firms on assessment of ethical threats; sharing of duties among assignment group members; requirements to qualification of the key partner, quality controller; identification of auditor assignments; solutions of complicated issues and their documenting,  measures on control of the assignment at the final phase and quality control of the assignment. The proposed measures are supposed to help auditing entities revise the already operating quality control systems in a timely manner, which will facilitate supply of high quality information to all the users of auditing reports, external quality controllers from the Body of Public Supervision over Auditing and the Auditor Chamber of Ukraine.

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