scholarly journals Application of biological variation and six sigma models to evaluate analytical quality of six HbA1c analyzers and design quality control strategy

2019 ◽  
Vol 47 (1) ◽  
pp. 3598-3602 ◽  
Author(s):  
Xia Wang ◽  
Dongmei Wen ◽  
Weijia Wang ◽  
Minghuan Suo ◽  
Ting Hu
Keyword(s):  
Quality Control ◽  
Sigma Models ◽  
Control Strategy ◽  
Six Sigma ◽  
Biological Variation ◽  
Analytical Quality ◽  
Design Quality ◽  
Quality Control Strategy

scholarly journals STRATEGI PENGENDALIAN KUALITAS PADA PROSES PENANGANAN RAJUNGAN MENGGUNAKAN METODE ANALYTICAL HIERARCHY PROCESS

2018 ◽  
Author(s):  
Mahrus Ali ◽  
Anita Wulandari ◽  
Veronika Nugraheni Sri Lestari
Keyword(s):  
Quality Control ◽  
Meat Quality ◽  
Control Strategy ◽  
Analytical Hierarchy Process ◽  
Small Crab ◽  
Human Resource Training ◽  
Quality Control Strategy ◽  
Crab Meat ◽  
Hierarchy Process

Including one small crab fishery are generally perishable food (easily broken/ rotten), of course, after stripping the small crab is most likely present in the less well handling so the quality is less good. That requires proper quality control strategy to apply is by AHP (Analytical Hierarchy Process). As the respondents selected three people making decisions in the company of PT. Tonga Tiur Putra. From the results of analysis that the factors that affect the quality of small crab meat found in transportation, and appropriate alternative for small crab meat quality control by means of procurement and human resource training.

Power Quality Control Strategy of Islanding Microgrid Under Distorted and Unbalanced Conditions

2014 ◽  
Vol 8 (1) ◽  
pp. 559-566 ◽  
Author(s):  
Wang Ruiqi ◽  
Jin Zhanxin ◽  
Li Sun ◽  
Wang Zhaoxin ◽  
Jiang Wenjuan ◽  
...  
Keyword(s):  
Quality Control ◽  
Power Quality ◽  
Control Strategy ◽  
Operation Mode ◽  
Synchronous Reference Frame ◽  
Control Schemes ◽  
Point Of Common Coupling ◽  
Quality Control Strategy

This paper presents a novel power quality control strategy for islanding microgrid contains multiple DG units under both distorted and unbalanced conditions. Actually the power quality of microgrid bus and the point of common coupling (PCC) are the main concerns due to the determination of high-quality power energy to the main grid and sensitive loads connected to microgrid bus. To tackle this problem, three control schemes based on PIR cascaded structure for DG units are developed to realize different control objectives. In these categories, the fundamental voltage is regulated by conventional PI controller to ensure direct voltage support and smooth operation mode transition while the harmonics or unbalanced variables are compensated with resonates controller in synchronous reference frame without sequential sequence decomposition. The proposed power quality control strategy that comprehensively utilization of these control schemes can satisfy power quality requirements of islanding microgrid, which is confirmed by simulation results considering both unbalance and distortion.

scholarly journals Aminoacylation and translational quality control strategy employed by leucyl-tRNA synthetase from a human pathogen with genetic code ambiguity

2013 ◽  
Vol 41 (21) ◽  
pp. 9825-9838 ◽  
Author(s):  
Xiao-Long Zhou ◽  
Zhi-Peng Fang ◽  
Zhi-Rong Ruan ◽  
Meng Wang ◽  
Ru-Juan Liu ◽  
...  
Keyword(s):  
Quality Control ◽  
Genetic Code ◽  
Control Strategy ◽  
Trna Synthetase ◽  
Human Pathogen ◽  
Code Ambiguity ◽  
Quality Control Strategy

Perbaikan Kualitas Produk Batu Bata Merah Dengan Metode Six Sigma-Dmaic (Studi Kasus Cv. Ghatan Fatahillah Karawang)

UNISTEK ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 6-10
Author(s):  
Egar Naufal Ari Satya ◽  
Wahyudin Wahyudin
Keyword(s):  
Quality Control ◽  
Customer Satisfaction ◽  
Six Sigma ◽  
Quality Standards ◽  
Research Results ◽  
Machine Performance ◽  
Fishbone Diagram ◽  
And Control ◽  
Dmaic Method

Abstrak. Dunia industri yang semakin berkembang akan mengakibatkan banyaknya persaingan. Perus-ahaan yang dapat bersaing adalah perusahaan yang dapat menjaga  kualitas produknya dengan baik sehingga dapat memenuhi kepuasan konsumen. Maka dari itu diperlukan pengendalian kualitas. Penelitian ini difokuskan pada penurunan cacat pada produk batu bata merah di CV. Ghatan Fatahillah dengan metode Six Sigma-DMAIC (Define, Measure, Analyze, Improve, dan Control). Dari hasil penelitian didapatkan DPMO sebesar 36.212 dengan nilai sigma 3,29. Jenis cacat yang paling sering terjadi pada batu bata merah yaitu pecah/patah yaitu sebesar 4.327 atau 59,81% dari total keseluruhan produk yang cacat.  Hasil dari tahap analyze dengan fishbone diagram, ditetapkan penyebab dari pecah/cacat, yaitu: pekerja kurang paham standar kualitas, tidak adanya pemeriksaan produk, pekerja kurang paham prosedur kerja, kinerja mesin tidak stabil, pekerja kurang teliti,  jumlah penggilingan tidak menentu, dan komposisi batu bata tidak menentu. Maka perlu dilakukan usulan perbaikan agar dapat mengurangi jumlah produk yang cacat pada batu bata merah. Kata kunci: DMAIC, DPMO, Pengendalian Kualitas, Six Sigma Abstract. The growing industrial world will result in a lot of competition. Companies that can compete are companies that can maintain the quality of their products well so that they can meet customer satisfaction. Therefore, quality control is needed. This research is focused on reducing defects in red brick products at CV. Ghatan Fatahillah with the Six Sigma-DMAIC method (Define, Measure, Analyze, Improve, and Control). From the research results obtained DPMO of 36,212 with a sigma value of 3.29. The type of defect that most often occurs in red bricks is broken / broken, which is 4,327 or 59.81% of the total defective products. The results of the Analyze stage with the fishbone diagram showed that the causes of breakage / defects were determined, namely: workers do not understand quality standards, lack of product inspection, workers do not understand work procedures, unstable machine performance, workers are not careful, the number of mills is erratic, and composition erratic bricks. So it is necessary to make improvement proposals in order to reduce the number of defective products in red bricks. Keywords: DMAIC, DPMO, Quality Control, Six Sigma

scholarly journals Six Sigma Analysis as an Approach to Improve Quality of Corrugated Zinc Sheet Product

2021 ◽  
Vol 6 (2) ◽  
pp. 75-89
Author(s):  
Handy Nur Cahya
Keyword(s):  
Quality Control ◽  
Six Sigma ◽  
Analysis Data ◽  
Improve Quality ◽  
Limit Value ◽  
Five Factors ◽  
Study Results ◽  
Zinc Sheet ◽  
Product Defect

Every manufacturing company will strive to create the best quality products. This is also done by PT. CMSM, a steel company, is producing corrugated zinc products. In several production periods, the defective product values were still found that exceeded the tolerance limit value set at 0.5% in corrugated zinc products. These problems are, of course, very detrimental to the company, so it’s essential to control the quality of corrugated zinc products. This study aimed to determine the factors that cause product defects, propose plans to improve product quality, and provide managerial recommendations based on Six Sigma analysis. Data collection techniques are carried out through observation, interviews, and documentation. Based on the study results, it is known that DPO is 0.000885 and DPMO is 884.6028. At this time, the company is at the level of 4.64 sigma with CTQ (Critical to Quality) folded zinc sheet, cut size is not according to standard, thickness is not according to standard, uneven coating layer and perforated zinc sheet. Based on the analysis, five factors cause product defects: humans, machines, methods, materials, and the environment. To improve quality, the company should improve their quality control through 5W + 1H analysis, namely by providing training to employees, periodic machine maintenance and ensuring that the SOPs that have been made are implemented correctly and adequately. Keywords: six sigma, DMAIC, product defect, quality control, manufacturing

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