Analisis Pengendalian Kualitas Menggunakan Bagan Kendali Bivariat dengan Copula pada Industri Manufactur di Indonesia

Product quality control is an important factor for the industrial world because good quality control and carried out continuously will be able to detect abnormal production results quickly, so that anticipatory action can be taken immediately. Quality is a major factor in consumer decision making before buying goods / services. The problem that occurs at this time in manufacturing companies in Indonesia is how the statistical quality control process can be applied properly. The purpose of this statistical analysis is to find out the statistical quality control process that is applied to manufacturing companies in Indonesia using bivariate control charts with copula. Copula is a function that combines a multivariate distribution function with a uniform one-dimensional marginal distribution function, in this condition the Copula used is the Archimedean Copula group. The method used in this data collection is a simple random sampling with the sample used are three manufacturing companies in Indonesia which covers the areas of Jakarta, Bandung and Makassar. The implementation of Copula in this control chart results in Frank Copula being the best Copula, this supports that the use of Copula in the quality control process has a good role

Uji Aktivitas Antimikroba Ekstrak Daun Mahkota Dewa (Phaleria macrocarpa) dengan Metode Difusi Cakram

Indonesia has abundant biological rich potential so it needs to be researched and utilized especially for various plants that have potential as medicine. One of the plants that can be used as a medicinal plant and has many benefits is the Phaleria macrocarpa. This study aimed to determine the effectiveness of P. macrocarpa leaf extract to inhibit the growth of Escherecia coli and Staphylococcus aureus bacteria. The results showed that the leaf extract of P. macrocarpa containing tannin compounds has the ability to inhibit bacterial growth. The extract of the crown of the deity of the god is more effective in inhibiting the growth of S. aureus bacteria compared to E. coli bacteria which is shown with a larger inhibitory zone. It means that the extract of the P. macrocarpa can be used as a medicinal ingredient for diseases caused by S. aureus bacteria

Penaksiran Generalized Method of Moments dengan Penggunaan Metode Marquardt-Levenberg

Generalized Method of Moments is a method for estimating parameters using sample moments. GMM is used by the researcher particularly in economics to determine econometrical models which their distribution function is hardly known. Not only for economics, but GMM also is useful for agriculture, transportation, health care, etc. Research methodology for this article is review of literature. This article describes the combination of GMM and Marquardt-Levenberg algorithm along with the example of its use

Uji Ekstrak Daun Maja (Aegle marmelos L.) terhadap Pertumbuhan Bakteri Escherichia coli dan Staphylococcus aureus

Aegle marmelos L. is one of the tropical plants that has many benefits and also has the potential to be used as herbal medicines. It caused in some areas in Indonesia, A. marmelos have been widely used in traditional medicine. This research was a qualitatively descriptive study to see the effectiveness of A. marmelos leaf extract in inhibiting the growth of Escherichia coli and Staphylococcus aureus bacteria. Stages of A. marmelos leaf extract inhibition test on bacterial growth included the stages: extraction by maceration method, phytochemical test, chromatography test, anti-microbial test. Data were analyzed qualitatively. The results showed that A. marmelos leaf extract was more effective in inhibiting the growth of E. coli bacteria than in S. Aureus bacteria. This can be information that Maja leaf extract can be used as a phytopharmaca material for diseases caused by E.coli

Antagonisme Bakteri terhadap Kapang Patogen pada Lahan Pertanian Tomat di Kabupaten Malang

Efforts in overcoming the problem of pathogenic mold attack can be done with the use of bacteria. This study aims to isolate the bacteria potentially controlling pathogenic molds in tomato plants (Solanum lycoperscium), as well as to identify potential bacteria controlling pathogenic fungi in tomato plants (Solanum lycoperscium) in Malang Regency. This research is an experimental laboratory study with a randomized block design (RCBD). This study used a Randomized Block Design because the experimental unit used was heterogeneous originating from 3 different locations. Of the 20 types of bacterial isolates, there are 6 bacteria that have the potential to inhibit the growth of Fusarium solani fungi that cause wilt disease in tomato plants, namely labeled bacteria EK, IK, BK, KK, CK and OK. There are six colonies that can act as antagonists of the fungus F. solani. It can be estimated that the six bacteria have the power to remodel and use carbon compounds. The carbon compounds such as arabinosa, xylosa, dextrose, cellobinosa, maltose, mannitol, sorbitol, and the use of citrate.

Key Competencies in The Industrial Age 4.0

The main problem in this article is the changing times and the phase of industrialization provides consideration in several fields of life. That change of time also has an impact on the way of life, shape of thinking, behavior, and human needs. In the industrial sector several key competencies are needed to meet those needs of community. This article is a literature review aimed at describing several key competencies needed in the industrial era 4.0. This article focuses on the grouping of key competencies in four major aspects items, namely, 1) personality competencies, 2) activities and actions competencies, 3) social communication competencies, and 4) technical and methodological competencies

Diagnosa Penyakit Kulit Menggunakan Case Based-Reasoning dan Self Organizing Maps

This study aims to compare the results of the accuracy and speed of the system in diagnosing skin diseases using the case based reasoning (CBR) method with the indexing method and without using indexing. Self-organizing maps (SOM) are used as an indexing method and the process of finding similarity values uses the nearest neighbor method. Testing is done with two scenarios. The first scenario uses CBR without indexing self-organizing maps, the second scenario uses CBR with indexing self-organizing maps. The accuracy of the diagnosis of skin diseases at a threshold ≥80 for CBR without indexing self-organizing maps is 93.46% with an average retrieve time of 0.469 seconds while CBR testing using SOM indexing is 92.52% with an average retrieve time of 0.155 seconds. The results of comparison of CBR methods without using show higher results than using SOM indexing, but the process of retrieving CBR using SOM is faster than not using indexing

Studi Kapasitas Lendutan, Daktalitas, dan Kekakuan pada Balok Beton Bertulang yang Diperkuat GFRP-S dengan Perendaman Air Laut Selama Satu Tahun

This study aims to analyze the deflection capacity, ductality and stiffness of reinforced concrete beam structures reinforced by GFRP with sea water immersion for 1 year. The test method used is a monotonic loading method that uses two simple supports over the test object and is pressed at a constant ramp actuator speed of 0.05 mm / sec until the concrete beam fails. The test results show that BF0 is more ductile compared to BF6 and BF12. This can be seen the existing deflection, where BF0 has a deflection that tends to be larger than the other beams. In BF0 specimens, the load that is able to hold is greater than BN specimens, but the resulting deflection is also greater

Pengaruh Pupuk Hayati Terhadap Pertumbuhan Bibit Kelapa Sawit (Elaeis guineensis Jacq.) pada Pembibitan Awal

This study aims to determine the effectiveness of N2-fixing microbes contained in organic organic fertilizers at four levels of nitrogen fertilizer application in increasing the performance of oil palm seedlings. The experiment was carried out in the form of an experiment using a Randomized Block Design with 2 factors: organic organic fertilizer and nitrogen fertilizer. The first factor with three levels of treatment, namely without organic biological fertilizer, Organic fertilizer from cow dung (Agro Flower) 1 g / kg of Soil and Organic organic fertilizer (Biost) 1 g / kg of Soil. While the second factor consists of four levels, namely without N fertilizer, N fertilizer 50% of the standard dose, N fertilizer 100% of the standard dose, and N fertilizer of 150% of the standard dose. Each treatment was tested on 4 oil palm seedlings and repeated 3 times, so that 144 experimental plants were obtained. The observations made were the variable plant performance includes plant height, number of leaves, and stem diameter. Variants of plant nutrient levels included total N nutrient levels, P nutrient levels, and K nutrient levels. The results showed that N-inhibiting microbes contained in organic organic fertilizer increased plant height and stem diameter significantly in oil palm nurseries. The use of a 100% dose of N fertilizer together with organic biofertilizers shows the best crop performance results.

Hubungan Parameter Biofisik Perairan dengan Hasil Tangkapan Ikan Pelagis Kecil di Perairan Pulau Ternate

This research was experimental fishing methods and regression analysis to examine the effect and relationship between biophysical parameters namely sea surface temperature and chlorophyll-a and the results of small pelagic fish conversations in Ternate Island, the results of the study showed that the biosphysical parameters including sea surface temperature (SPL) and chlorophyll-a have a significant influence on the distribution of small pelagic fish, with the correlation coefficient values of each sea surface temperature parameter and chlorophyll-a with the results of the pelagic fish tagging are 0.6121 and 0.7042