scholarly journals A Novel Construction of Perfect Strict Avalanche Criterion S-box using Simple Irreducible Polynomials

2020 ◽  
Vol 7 (1) ◽  
pp. 10-22 ◽  
Author(s):  
Alamsyah Alamsyah
Keyword(s):  
Irreducible Polynomial ◽  
Test Results ◽  
Irreducible Polynomials ◽  
A Value ◽  
Strict Avalanche Criterion ◽  
Main Components ◽  
Algebraic Technique ◽  
Selection Of

An irreducible polynomial is one of the main components in building an S-box with an algebraic technique approach. The selection of the precise irreducible polynomial will determine the quality of the S-box produced. One method for determining good S-box quality is strict avalanche criterion will be perfect if it has a value of 0.5. Unfortunately, in previous studies, the strict avalanche criterion value of the S-box produced still did not reach perfect value. In this paper, we will discuss S-box construction using selected irreducible polynomials. This selection is based on the number of elements of the least amount of irreducible polynomials that make it easier to construct S-box construction. There are 17 irreducible polynomials that meet these criteria. The strict avalanche criterion test results show that the irreducible polynomial p17(x) =x8 + x7 + x6 + x + 1 is the best with a perfect SAC value of 0.5. One indicator that a robust S-box is an ideal strict avalanche criterion value of 0.5

Implementasi Voip Server Berbasis IPV6 Dengan Raspberry PI

2019 ◽  
Vol 9 (01) ◽  
pp. 47-54
Author(s):  
Rabbai San Arif ◽  
Yuli Fitrisia ◽  
Agus Urip Ari Wibowo
Keyword(s):  
Internet Protocol ◽  
Wireless Transmission ◽  
Raspberry Pi ◽  
Test Results ◽  
Average Delay ◽  
Ipv6 Network ◽  
Ip Network ◽  
Selection Of ◽  
Better Than

Voice over Internet Protocol (VoIP) is a telecommunications technology that is able to pass the communication service in Internet Protocol networks so as to allow communicating between users in an IP network. However VoIP technology still has weakness in the Quality of Service (QoS). VOPI weaknesses is affected by the selection of the physical servers used. In this research, VoIP is configured on Linux operating system with Asterisk as VoIP application server and integrated on a Raspberry Pi by using wired and wireless network as the transmission medium. Because of depletion of IPv4 capacity that can be used on the network, it needs to be applied to VoIP system using the IPv6 network protocol with supports devices. The test results by using a wired transmission medium that has obtained are the average delay is 117.851 ms, jitter is 5.796 ms, packet loss is 0.38%, throughput is 962.861 kbps, 8.33% of CPU usage and 59.33% of memory usage. The analysis shows that the wired transmission media is better than the wireless transmission media and wireless-wired.

scholarly journals EKSTRAK KARAGINAN RUMPUT LAUT (Eucheuma cottonii) YANG DIPEROLEH DARI PANTAI TABLOLONG

2021 ◽  
Vol 3 (3) ◽  
pp. 119-127
Author(s):  
Runa Matias Ruku ◽  
Alfred G.O Kase ◽  
Hartini R.L Solle
Keyword(s):  
Fat Content ◽  
Ash Content ◽  
Test Results ◽  
A Value ◽  
Randomized Design ◽  
Yield Test ◽  
Completely Randomized Design ◽  
Quantitative Descriptive ◽  
Treatment Concentration

ABSTRACTEucheuma cottonii (E. cottonii) seaweed is a low level plant that has a high nutritional value. One of the ingredients that play a role in the formation of texture is carrageenan.Carrageenan is a type of hydrocolloid extracted from the seaweed of the red algae group (Rhodophyceae). The purpose of this study was to determine the quality of yields of Seaweed Carrageenan Extract (E. cottonii) obtained from Tablolong beach in the form of yield, ash content and fat content. The method used in this study is an experimental method with a completely randomized design (CRD) and for fat testing using quantitative descriptive methods. This study uses various concentrations of 0.1 N KOH, 0.2 N KOH, 0.3 N KOH and 0.4 N KOH. The results of the carrageenan yield test show that the addition of 0.1 N KOH concentration has a value of 56.10, KOH 0 , 2 N 62.16, KOH 0.3 N 72.73 and the best treatment was at P4 KOH 0.4 N 80.90. Carrageenan ash content test results showed that the addition of KOH concentration value obtained P1 KOH 0.1 N was 60.50, P2 KOH 0.2 N was 70.70, P3 KOH 0.3 N was 80.50, and P4 KOH 0.4 with a value of 90.50. The results of the carrageenan fat content of 0.1 KOH treatment has a fat content of 0, 2 while the treatment of KOH 0,2, KOH 0,3, KOH 0,4 have no fat content by showing the value (0). The results showed that the highest yield in the treatment of KOH concentration of 0.4 N with a value 80.95% and carrageenan ash content has the highest value in the treatment concentration of 0.4 N with a value of 90.50% while the fat content has a value of 0.2 in the treatment of KOH concentration of 0.1 N Keywords: Carrageenan, extract of E. cottonii seaweed.

scholarly journals Selected Issues Concerning Degradation of Material in the Production of Injection Molded Plastic Components

2016 ◽  
Vol 10 (3) ◽  
pp. 173-180
Author(s):  
Marek Jałbrzykowski
Keyword(s):  
Thermal Characteristics ◽  
Test Results ◽  
Base Materials ◽  
Plastic Materials ◽  
Technological Quality ◽  
Injection Molded ◽  
Plastic Components ◽  
Injection Molded Plastic ◽  
Selection Of

Abstract This paper presents the problem of thermal degradation of thermoplastic materials processed using the injection method. Attention was paid to the issue of the optimal selection of a dye for modifying the base materials. For the selected materials and dyes, derivatograph tests were performed in order to assess their thermal characteristics and breakdown kinetics. Additionally, tribological tests and microscope observations of selected samples were performed. The obtained test results suggest a diverse level of thermal processes in the analyzed materials. This is crucial for the appropriate selection of dyes for plastic materials. As it turned out, the tribological properties of materials can also influence the technological quality of the injected alloy.

scholarly journals Employee Performance Assessment for Promotion with the Topsis Method in Senayan Apartments Jakarta

SinkrOn ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 6
Author(s):  
Sunarti Sunarti
Keyword(s):  
Employee Performance ◽  
Topsis Method ◽  
A Value ◽  
Self Development ◽  
Order Preference ◽  
Job Promotion ◽  
A Company ◽  
Employee Data ◽  
Selection Of

Apartment Senayan Jakarta is a company engaged in rental services. Job promotion is carried out every year. Job promotion makes motivated employees work well and enthusiasm in self-development to improve the quality of performance. Performance evaluation as material for employee evaluation for promotion in Senayan Apartment Jakarta by utilizing the Technique for Order Preference method by Similarity of Ideal Solution (Topsis). This method can show evaluation ranking from highest to lowest by ranking alternatives in the form of employee data and dynamic criteria. The purpose of this study is the selection of quality employee performance for promotion based on the specified criteria. Based on the data sample used as many as 14 employees, the results of the assessment are based on rank, ie employees on behalf of Ridan get the first rank with a value of 0.50.

ANALISIS PENGARUH JARAK KAMPUH HASIL PENGELASAN BAJA SS400 TERHADAP SIFAT MEKANIK MATERIAL MENGGUNAKAN METODE GMAW

2020 ◽  
Vol 8 (2) ◽  
pp. 57-66
Author(s):  
Novi Laura Indrayani ◽  
Herry Oktadinata ◽  
Ito Suteja
Keyword(s):  
Hardness Test ◽  
Butt Joint ◽  
Test Results ◽  
Destructive Test ◽  
Microstructure Observation ◽  
A Value ◽  
Welding Defects ◽  
Protective Gas ◽  
Non Destructive

Welding techniques have been used extensively in the construction field because welding techniques are a simpler method in the process of connecting steel than using bolts or rivets. Factors that influence the quality of welding results include distance of the seam. The seam distance can affect the increase in heat input value because the wider the seam distance the more filler metal will be used. The purpose of this study was to determine how the effect of variations in the distance of the seam to the mechanical properties of SS400 steel welding material using the GMAW method. SS400 steel welding welding position 2G with variations in the root gap distance of 0 mm, 2 mm and 4 mm using the GMAW method with a type of protective gas 82% Ar + 18% CO2 and ESAB ER70S-6 type welding wire. Single v butt joint type with a seam angle of 60o and 12 mm thick material. In this study several tests were conducted including distortion testing, non-destructive test, tensile, chemical composition, hardness and microstructure observation. The highest distortion test results obtained at a root gap of 4 mm seam, non-destructive test results showed no welding defects in the upper surface of the weld, the optimal tensile testing results were obtained on a sample root gap of 2 mm with a tensile strength value of 413 MPa and fractures that occurred in the base area metal. The highest hardness test results were obtained at a sample root gap  of 0 mm ap with a value of 235 HV and the lowest hardness obtained at a root gap of 4 mm with a value of 209 HV.

Can you fall in love with old age?

2021 ◽  
Vol 36 (3) ◽  
pp. 161-176
Author(s):  
Izabela Zapalska
Keyword(s):  
Social Services ◽  
Old Age ◽  
Human Life ◽  
Good Practice ◽  
Institutional Support ◽  
The Elderly ◽  
Advantages And Disadvantages ◽  
A Value ◽  
Selection Of

This text addresses the perception of old age in the 21st century. The aim of the article is to draw attention to the issue of the diverse perception of aging and old age. The addressees of the article are employees of social services, NGO activists, the elderly and their caregivers, people who contribute to the environment in which the elderly live, as well as students of medical, social sciences and pedagogical fields of studies. The selection of literature for this study was not accidental, as the authors of selected works are the elite of world gerontology, andragogy, pedagogy, psychology, sociology, whose main area of scientific interest are issues related to old age and the aging process. These include: Aleksander Kamiński, Zofia Szarota, Artur Fabiś, Barbara Szatur-Jawoska, Paul Baltes and others. The article attempts to show old age as a period of heyday and living it in a dignified rather than chronological way. In addition, the advantages and disadvantages and of this period of human life are presented, as wells as recognised examples of good practice, institutional support and non-institutional support.. The text highlights some of the determinants that are characteristic for ageing and old age, such as: successful ageing, graceful ageing and quality of life. Such an approach to the problem helps to reflect more deeply on the issue raised, while helping to exclude metastereotypes and contribute to treating old age as a value. It will also make us reflect on the passage of time and on the last period of life, which does not have to fill us with fear, being scared of the unknown, a sense of helplessness, and for which we should learn and prepare throughout our life. The article also highlights two very important facts that old age cannot be confined, and its limits cannot be defined, as well as the heterogeneity of this social group, which does not allow for the development of a single model of old age, which would become a model used by the sciences dealing with this field of study. Finally, an attempt was made to answer the key question – Can you fall in love with old age?

scholarly journals PELAKSANAAN YOGA PRENATAL TERHADAP KUALITAS TIDUR PADA IBU HAMIL TRIMESTER III DI PMB SUKMAWATI,S.ST.M.KES

2021 ◽  
Vol 13 (1) ◽  
pp. 61-66
Author(s):  
Lili Purnama Sari ◽  
Dahniar
Keyword(s):  
Sleep Quality ◽  
Pregnant Women ◽  
Sampling Technique ◽  
Low Back ◽  
Test Results ◽  
Third Trimester ◽  
The Third ◽  
A Value ◽  
Improve Sleep Quality

AbstractDiscomfort during pregnancy will interfere with sleep quality which will have an impact on psychological disorders during pregnancy. Objective: To see the effect of the implementation of prenatal yoga on the sleep quality of third trimester pregnant women. Research Method: Experiment with One Group Pretest-Postest Design. Sampling was done by total sampling technique and a sample of 30 respondents. The instrument used is a questionnaire. Data analysis using SPSS program with Paired Simplet T Test statistical test. Results: the results of the analysis of the effect of prenatal yoga on sleep quality obtained with a value of = 0.000, meaning that there is an effect of the implementation of prenatal yoga on the sleep quality of pregnant women in the third trimester. Research implications: Prenatal yoga intervention can improve sleep quality, thereby reducing complaints in third trimester pregnant women. Recommendation: It is hoped that there will be research that intervenes in prenatal yoga for pregnant women in the third trimester to reduce anxiety and other complaints including insomnia and low back pain in pregnant women.  

scholarly journals Research on the Fairness of MPACC Selection Based on Examiner Heterogeneity

2021 ◽  
Vol 235 ◽  
pp. 03010
Author(s):  
Yan Wang ◽  
Zhuqian He ◽  
Jingjie Zheng
Keyword(s):  
Regression Model ◽  
Test Scores ◽  
Test Results ◽  
Before And After ◽  
The Relationship ◽  
Selection Of

The selection of MPACC (Master of Professional Accountant) is a key step in the training of senior accounting personnel. This paper examines the relationship between examiner heterogeneity and MPACC second test scores. We try to clarify the reason for the unfair phenomenon because of the heterogeneity of examiners in MPACC second test results and seek ways to solve this problem. The study found that the MPACC second test results are unfair. This unfairness is caused by the heterogeneity of the examiner. However, standardized algorithms balance the differences in MPACC examiner heterogeneity. The regression model was constructed by using the MPACC second test scores before and after standardization, which verified the existence of examiner heterogeneity and the effect of the standardized algorithm on the examiner heterogeneity. This article is based on the differences of MPACC second test scores due to examiner’s heterogeneity. We propose the application of standardized algorithm, which will play an important role in improving the quality of MPACC enrollment and promoting the training of senior accounting personnel.

scholarly journals RANCANG BANGUN MESIN PENGOLAH GANYONG MULTI FINGSI [Design of Multifunctional Canna Machine]

2017 ◽  
Vol 5 (2) ◽  
pp. 462-471
Author(s):  
Asep Yusuf ◽  
Wahyu Kristian Sugandi ◽  
Zaida ◽  
Ch.F. Godang Tua
Keyword(s):  
Agricultural Land ◽  
Raw Materials ◽  
Test Results ◽  
Human Beings ◽  
Processing Machine ◽  
Engine Design ◽  
Drive Motor ◽  
System Output ◽  
Main Components

Food is a basic requirement for human beings. As the population increases, food demand will continue to increase. Food problems in Indonesia are inseparable from rice and flour, in addition to other foodstuffs such as cassava, corn, and sago (Colas, 1994). Efforts to increase rice production are not easy, since there is a massive diversion of agricultural land functions into residential and industrial areas. Indonesia has the potential of tubers as a source of carbohydrates as well as raw materials of local flour. One of the sources of local starch that can be used as flour is canna (Canna edulis Ker). The obstacles faced by smallholders/ small and medium industries (SMEs) who use canna flour that is in the post-harvest process to produce canna flour. Making starch/ canna flour generally still done traditionally, thus affecting the productivity and quality of flour produced. This study aims to design a multi-function canna processing machine to produce canna flour as food. The research method used is the engineering method, which is the activity of designing the build canna processing machine. Canna machine has been successfully made with two main functions namely: the solvent and slicer. The main components of the machine consist of: frame, solvent unit, slicer unit, transmission system, output outlet, wheel, and drive motor. Dimensions of the machine that is 90 cm long, 85 cm wide and 100 cm high. While the frame dimension is 80 cm long, 70 cm wide and 65 cm high. Functional test results show that all components work properly.   Keywords: canna, canna machine, multifunctional, engine design   ABSTRAK   Pangan merupakan kebutuhan pokok bagi manusia. Seiring dengan meningkatnya jumlah penduduk, maka kebutuhan pangan akan terus meningkat. Masalah pangan di Indonesia tidak terlepas dari beras dan terigu, disamping bahan pangan lainnya seperti ubi kayu, jagung, dan sagu (Colas, 1994). Upaya untuk meningkatkan produksi beras bukan hal mudah, karena banyak terjadi pengalihan fungsi lahan pertanian secara massal menjadi area pemukiman dan industri. Indonesia  memiliki  potensi  umbi-umbian sebagai sumber karbohidrat sekaligus bahan baku tepung lokal. Salah satu tanaman sumber pati lokal yang dapat dijadikan tepung adalah ganyong (Canna edulis Ker). Kendala yang dihadapi oleh petani atau Industri Kecil Menengah (IKM) yang memanfaatkan tepung ganyong adalah pada proses pasca panen untuk menghasilkan tepung ganyong. Pembuatan pati atau tepung ganyong umumnya masih dikerjakan secara tradisional, sehingga mempengaruhi produktivitas serta kualitas tepung yang dihasilkan. Penelitian ini bertujuan untuk merancang bangun mesin pengolah ganyong multi fungsi sehingga dihasilkan tepung ganyong sebagai bahan pangan. Metode penelitian yang digunakan adalah metode rekayasa, yaitu kegiatan merancang bangun mesin pengolah ganyong. Mesin ganyong telah berhasil dibuat dengan dua fungsi utama, yaitu: pemarut dan pengiris. Komponen utama mesin terdiri dari: rangka, unit pemarut, unit pengiris, sistem transmisi, saluran pengeluaran hasil, roda, dan motor penggerak. Dimensi mesin yaitu panjang 90 cm, lebar 85 cm dan tinggi 100 cm. Sedangkan dimensi rangka, yaitu panjang 80 cm, lebar 70 cm dan tinggi 65 cm. Hasil uji fungsional menunjukkan bahwa semua komponen berfungsi dengan baik.   Kata kunci: ganyong, mesin ganyong, multi fungsi, rancang bangun mesin

scholarly journals PENINGKATAN KINERJA ALGORITMA K MEANS DENGAN MENGGUNAKAN PARTICLE SWARM OPTIMIZATION DALAM PENGELOMPOKAN DATA PENYEDIAAN AKSES

2020 ◽  
Vol 6 (2) ◽  
pp. 213-227
Author(s):  
ARI YUNUS HENDRAWAN
Keyword(s):  
Water Quality ◽  
Pso Algorithm ◽  
Selection Method ◽  
Test Results ◽  
Community Based ◽  
Swarm Optimization ◽  
Number Of Clusters ◽  
The Third ◽  
A Value ◽  
Selection Of

           Water is one of the things that plays a very important role in human survival, because the Indonesian government has a community-based water supply and sanitation (PAMSIMAS) program, so that all the programs run well need a regional status grouping technique in this thesis. with the K-means algorithm. K-means is a partition algorithm that aims to divide the data into the specified number of clusters, the results of the K means algorithm depend on the selection of the initial klater center but problems that often occur when selecting the initial centroid are randomly drawn from the solution. from the grouping is not quite right. To overcome this problem the author wants to use the PSO algorithm in the initial centroid selector for the K-means algorithm, in this study also compared the selection of the first 3 centroids according to random, second according to government standards the value of high, medium and low drinking water quality then the third method proposed by the PSO algorithm was then tested with Davies Bouldin Index. From the test results, the K-means method with the selection of random initial centroid with a value of 0.208856082, the K-means method with the selection of centroids in accordance with government standards about SAM conditions of 0.280077 and the best selection method is K-means PSO 0, 08383. So testing the PAMSIMAS data using K-means PSO found that the method was more optimal.  

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