scholarly journals Usability Testing Vision Sensor Based Work Time Measurement Technology

Jurnal PASTI ◽  
2020 ◽  
Vol 14 (2) ◽  
pp. 105
Author(s):  
Euis Nina Saparina Yuliani ◽  
Ajeng Yeni Setianingrum ◽  
Muhammad Kholil
Keyword(s):  
Usability Testing ◽  
Time Measurement ◽  
Sensor Technology ◽  
Measurement Technology ◽  
Vision Sensor ◽  
Work Time ◽  
Average Value ◽  
Subject Design ◽  
Two Factors ◽  
High Level

A product or technology is perceived easily in case it has a high level of usability. This means users have no difficulties or encounter problems while using. The purpose of this study is to conduct usability testing of vision sensor-based working time measurement technology. It is meant to determine the ability of the technology to conduct work time measurement functions with the same results as the conventional process using a stopwatch. The study involves an experimental method with two factors. Based on the results of the ANOVA Two-Way Analysis (within-subject design), the first and second levels in apparatus factor shows there is no difference in the average value of the cycle time between work measurements with and without the vision sensor technology (Fobtained(4,1) < Fcritical(5,12)). Therefore, the technology designed is capable of measuring the same work as manual measurement.  

scholarly journals Study on coloring method of airport flight-gate allocation problem

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Hongyan Li ◽  
Xianfeng Ding ◽  
Jiang Lin ◽  
Jingyu Zhou
Keyword(s):  
Graph Coloring ◽  
Programming Model ◽  
Weight Vector ◽  
Multi Objective ◽  
Average Value ◽  
Two Factors ◽  
Minimum Number ◽  
First Come First Serve ◽  
Airport Terminals ◽  
Single Objective

Abstract With the development of economy, more and more people travel by plane. Many airports have added satellite halls to relieve the pressure of insufficient boarding gates in airport terminals. However, the addition of satellite halls will have a certain impact on connecting flights of transit passengers and increase the difficulty of reasonable allocation of flight and gate in airports. Based on the requirements and data of question F of the 2018 postgraduate mathematical contest in modeling, this paper studies the flight-gate allocation of additional satellite halls at airports. Firstly, match the seven types of flights with the ten types of gates. Secondly, considering the number of gates used and the least number of flights not allocated to the gate, and adding the two factors of the overall tension of passengers and the minimum number of passengers who failed to transfer, the multi-objective 0–1 programming model was established. Determine the weight vector $w=(0.112,0.097,0.496,0.395)$ w = ( 0.112 , 0.097 , 0.496 , 0.395 ) of objective function by entropy value method based on personal preference, then the multi-objective 0–1 programming model is transformed into single-objective 0–1 programming model. Finally, a graph coloring algorithm based on parameter adjustment is used to solve the transformed model. The concept of time slice was used to determine the set of time conflicts of flight slots, and the vertex sequences were colored by applying the principle of “first come first serve”. Applying the model and algorithm proposed in this paper, it can be obtained that the average value of the overall tension degree of passengers minimized in question F is 35.179%, the number of flights successfully allocated to the gate maximized is 262, and the number of gates used is minimized to be 60. The corresponding flight-gate difficulty allocation weight is $\alpha =0.32$ α = 0.32 and $\beta =0.40$ β = 0.40 , and the proportion of flights successfully assigned to the gate is 86.469%. The number of passengers who failed to transfer was 642, with a failure rate of 23.337%.

scholarly journals Dynamic statistical assessment of the competitiveness of an energy generating company (as exemplified by Rosenergoatom Concern JSC)

2021 ◽  
Vol 7 (4) ◽  
pp. 327-332
Author(s):  
Tatiana A. Burtseva ◽  
Sergey S. Khvorostyannikov ◽  
Anastasia A. Kuznetsova
Keyword(s):  
Energy Efficiency ◽  
National Economy ◽  
Nuclear Energy ◽  
Nuclear Industry ◽  
Total Energy Consumption ◽  
Russian Economy ◽  
The World ◽  
Two Factors ◽  
The Government ◽  
High Level

The depletion of traditional organic energy sources and aggravated environmental problems are the reasons why the level of energy efficiency is an important factor in the competitiveness of the national economy. Russia ranks third in the world in terms of total energy consumption and its economy is distinguished by a high level of energy intensity (amount of energy per unit of GDP). In 2019, this figure was 9.62 tons of oil equivalent (toe) per 1 million rubles, which is 40% higher than the world average. The low energy efficiency of the Russian economy is a widely recognized problem. A special decree of the Government of Russia in 2018 sets the task of increasing the level of energy efficiency of the Russian economy by 23% by 2030. One of the ways to solve this problem is the development of nuclear energy, and increasing the competitiveness of nuclear energy is one of the key issues for the national economy. In this connection, solving the problem of assessing the competitiveness of the nuclear industry and its leading companies occupies a key place among the practical scientific problems, the solution of which is facilitated by the results presented by the authors in this article. Rosenergoatom Concern JSC is the leading energy generating company in the Russian nuclear industry. The results of the study of the competitiveness of Rosenergoatom Concern JSC were obtained on the basis of the authors’ methodology for assessing the competitiveness of an energy generating company. The novelty of the presented methodology lies in the developed normative and evaluative model and the coefficients of competitiveness of an energy generating company. The advantages of the authors’ model are that it allows (1) obtaining integral assessments of the competitiveness of a power generating company at short time intervals for a large number of indicators and (2) quantitatively measuring the effects of different factors on the competitiveness of a power generating company, provided that the grouping of indicators of competitiveness of a power generating company is justified by influencing factors. The two factors considered by the authors were: the general market factor and the industry factor. According to the results of the study, it was found that Rosenergoatom Concern JSC demonstrates positive increase of the competitiveness indicator mainly due to the industry factor. With this regard, it was concluded that, within the framework of state policy, it is advisable to strengthen support for the Russian nuclear industry by creating additional conditions and opportunities for its energy generating companies on the domestic energy market.

DISCOVERING STOCK TRADING PREFERENCES BY SELF-ORGANIZING MAPS AND DECISION TREES

2009 ◽  
Vol 18 (04) ◽  
pp. 603-611 ◽  
Author(s):  
CHIH-FONG TSAI ◽  
YUAH-CHIAO LIN ◽  
YI-TING WANG
Keyword(s):  
Individual Investors ◽  
Self Organizing Map ◽  
Tree Model ◽  
Stock Trading ◽  
Self Organizing Maps ◽  
Two Factors ◽  
Group A ◽  
Trading Activities ◽  
High Level ◽  
Self Organizing

Stock trading activities are always very popular in many countries. Generally, investors with various backgrounds have different preferences over the stocks they trade. In literature, a number of studies examine the institutions' holding preferences for certain stock characteristics when choosing the security portfolio. However, very few studies investigate the stock trading preferences of individual investors. In this paper, we focus on two factors which affect the portfolio choices of investors, which are stock characteristics and investor features. In particular, a self-organizing map (SOM) is used to group a certain number of clusters based on a chosen dataset. Then, the decision tree model is used to extract useful rules from the clusters which contain the most trading records in the sample. We find that if the investors are females, less wealthy, and make stock trades with lower frequencies, they will be more careful and conservative. On the other hand, if the investors are males, having a high level of wealth, and make stock trades very often, they tend to choose stocks with high EPS, high market-to-book, and high prices.

A New High Resolution Measurement Technology of D Flip-Flop Output Signals for Measuring Frequency Difference

2013 ◽  
Vol 391 ◽  
pp. 568-571
Author(s):  
Jin Feng Dong ◽  
Wei Yu Zhang ◽  
Hua Liu Liu ◽  
Yong Wei
Keyword(s):  
Absolute Error ◽  
Measurement Technology ◽  
Clock Period ◽  
Flip Flop ◽  
Average Value ◽  
Resolution Measurement ◽  
Measuring Frequency ◽  
The Difference ◽  
Quartz Crystal Resonators ◽  
The Relationship

The output periods of D flip-flop mixer are variable though the periods of two input frequencies are invariable. To measure the output frequency, the conventional method is to calculate the average value of the output periods and the maximum possible absolute error is a clock period. The variation of the output periods has its own pattern of arrangement and it can provide valuable information. Measuring accuracy can be significantly improved by taking into account all the details of output periods changes. A mathematical model that describes the relationship between the input square waves and the output square waves was developed and the difference of two input frequencies can be estimated by the solution of the model. The new method is quite suitable for measuring small frequency increments of quartz crystal resonators.

scholarly journals The Interaction Effect between ESG and Green Innovation and Its Impact on Firm Value from the Perspective of Information Disclosure

2020 ◽  
Vol 12 (5) ◽  
pp. 1866 ◽  
Author(s):  
Fen Zhang ◽  
Xiaonan Qin ◽  
Lina Liu
Keyword(s):  
Interaction Effect ◽  
Firm Value ◽  
Information Disclosure ◽  
Positive Impact ◽  
Substitution Effect ◽  
Green Innovation ◽  
Two Factors ◽  
High Level ◽  
The Impact ◽  
Quantile Regression Method

Few studies have been conducted on whether the coexistence of green innovation and corporate social responsibility (CSR) has a favorable interaction effect on firm value. This interaction effect is of great significance for enterprises balancing resource allocation between two factors in the future. Meanwhile, information disclosure can reflect the efforts of enterprises in taking on CSR. Therefore, taking China’s listed companies as an example, this paper studies the interaction effect of CSR after being divided into the three different dimensions of environment, society, and governance (ESG) and green innovation on firm value. The quantile regression method can reflect the impact of CSR and green innovation on the firm value of different levels. The study finds that: (1) green innovation can promote the improvement of medium- and high-level firm value; (2) only the disclosure of environmental and social information can have a positive impact on firm value; (3) the interaction effect between green innovation and social disclosure on firm value is a substitution effect, which will gradually weaken with the increase of firm value. This paper proposes that relevant departments should guide green funds into enterprises with capital constraints to alleviate the issue of fund crowding into CSR and green innovation.

Autoregulation of MEIS1 through a Distal Enhancer in Acute Leukemia

Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 745-745
Author(s):  
Qianfei Wang ◽  
Jingfang Dong ◽  
Ryan Mattison ◽  
Shyam Prabhakar ◽  
Fabio Eiji Arimura ◽  
...  
Keyword(s):  
Acute Leukemia ◽  
Cell Lines ◽  
Reporter Gene ◽  
Genomic Region ◽  
Regulatory Function ◽  
Distal Enhancer ◽  
Enhancer Element ◽  
Two Factors ◽  
High Level

Abstract Aberrant activation of the TALE (three-amino-acid loop extension) homeobox gene MEIS1 is frequently observed in acute leukemia. A high level of Meis1 expression shortens the latency, as well as accelerates the onset and progression of acute myeloid leukemia in mice. Although available data support the notion that MEIS1 is oncogenic by means of overexpression rather than mutation, the molecular mechanism underlying persistent activation of this gene in leukemia remains poorly understood. We have identified a distal enhancer (designated EX) at the MEIS1 locus and found that MEIS1 itself and HOXA9 synergistically activate the regulatory activity of EX through a conserved DNA motif. Using comparative genomics-based strategies, we computationally predicted 14 putative enhancer DNA elements in the 1300 Kb MEIS1 locus. We confirmed that the human sequences of 6 of these 14 elements showed enhancer function as they were able to direct GFP expression in a spatiotemporal manner during embryonic hematopoiesis in an in vivo transgenic zebrafish assay. To explore whether these 6 elements play a role in regulating MEIS1 expression in human leukemia, we examined the presence of histone modifications that are associated with gene activation in a panel of 8 leukemia cell lines. In MEIS1-expressing cells, but not MEIS1 transcript-negative cell lines, the genomic region corresponding to enhancer EX showed extensive H3K4 mono-methylation (me1H3K4), a hallmark of active distal enhancers. When endogenous MEIS1 expression decreases during cellular differentiation, the active histone mark me1H3K4 was replaced by repressive H3K27 methylation and the associated EZH2 polycomb protein at the EX region. In murine leukemia models, retroviral integration at the Meis1 locus has been shown to result in overexpression of Meis1 leading to development of AML. Strikingly, we found that viral integration frequently occurred within the genomic sequence corresponding to enhancer EX. Collectively, these data suggest that enhancer EX plays an important role in maintaining high level expression of endogenous MEIS1 in transformed leukemic cells. In an effort to identify the molecular basis underlying the observed regulatory function of EX, we found MEIS1 and HOXA9 synergistically stimulate the enhancer activity of EX in reporter gene assays, suggesting that production of MEIS1 protein can reinforce its own expression. Mutation of a conserved site within the enhancer abolished the ability of these two factors to activate reporter gene expression. Using ChIP (Chromatin Immunoprecipitation), we further demonstrated that MEIS1 and HOXA9 specifically bind to the genomic region containing the conserved site in vivo, and the presence of these two factors in the region is associated with active MEIS1 expression. These studies provide insight on the molecular mechanisms controlling transcription regulation of MEIS1, suggesting that overexpression of MEIS1 in acute leukemia is sustained by an autoregulatory loop mediated through a distal enhancer element.

Design and Implementation of Digital Sensor Simulator

2013 ◽  
Vol 411-414 ◽  
pp. 1581-1587
Author(s):  
Gai Fang Wang ◽  
Feng Feng Fan ◽  
Xi Tao Xing ◽  
Yong Wang
Keyword(s):  
Rapid Development ◽  
General Structure ◽  
Sensor Technology ◽  
Simulation Environment ◽  
Sensor Applications ◽  
Detection Technology ◽  
Additional Costs ◽  
High Level ◽  
Performance Results ◽  
Short Time

With the rapid development of sensor technology recently, sensors have been applied to various fields for detecting object states, e.g. intelligent agriculture, intelligent power, intelligent city, the Internet of Things, etc., and have becoming more and more critical for dynamic data acquisition. Due to detection environment, detection technology, costs and other factors, access to actual sensors for developing or debugging a sensor application may cause additional costs and time. Meanwhile, testing new sensor applications and protocols needs appropriate feasible ways with low costs and short time. Therefore, it is fairly urgent for designing and developing a simulation environment of sensors and sensor applications. This paper parsed the general structure of digital sensors, and then designed domain-based high level architecture of digital sensor simulator. Finally, the prototype of digital sensor simulator was developed and demonstrated the proper performance. Results show that digital sensor simulator would provide an effective way for testing novel sensors and protocols and also play an important role for constituting sensor network simulation environment.

scholarly journals Pengaruh Konsentrasi Asap Cair Bambu Tabah (Gigantochloa nigrociliata Buse-Kurz) dan Lama Perendaman Terhadap Kesegaran Pisang Cavendish (Musa Acuminata)

2021 ◽  
Vol 9 (1) ◽  
pp. 45
Author(s):  
K Justikha Natalia Praja ◽  
Pande Ketut Diah Kencana ◽  
I Gusti Ketut Arya Arthawan
Keyword(s):  
Weight Loss ◽  
Storage Temperature ◽  
Storage Period ◽  
Soaking Time ◽  
Average Value ◽  
Liquid Smoke ◽  
Randomized Design ◽  
Two Factors ◽  
Four Levels ◽  
Natural Preservatives

ABSTRAK Buah pisang Cavendish merupakan salah satu produk hortikultura yang rentan mengalami kemunduran fisiologis dan sangat rentan terhadap kerusakan fisik setelah panen. Penggunaan berbagai konsentrasi asap cair bambu tabah dengan lama perendaman yang berbeda dapat digunakan sebagai pengawet alami. Buah pisang yang digunakan adalah pisang Cavendish yang berasal dari Kabupaten Buleleng, dalam satu sisir berisi paling sedikit10 buah dengan panjang rata-rata 18.89 cm dan berat rata-rata 125  gram (g). Tujuan penelitian ini adalah menemukan kombinasi perlakuan terbaik dari perlakuan konsentrasi asap cair dan lama perendaman untuk menjaga kesegaran dan masa simpan pada buah pisang Cavendish selama penyimpanan. Rancangan percobaan yang digunakan dalam penelitian ini adalah Rancangan Acak Lengkap (RAL) faktorial dengan dua faktor, yaitu faktor pertama adalah konsentrasi asap cair bambu tabah dan faktor kedua adalah lama perendaman. Faktor pertama terdiri dari empat taraf konsentrasi yaitu 1%, 3%, 5%, dan 7%. Faktor kedua terdiri dari tiga taraf lama perendaman yaitu 10 menit, 20 menit dan 30 menit dengan suhu penyimpanan menggunakan suhu ruang (28±2oC).  Parameter yang diamati dalam penelitian ini adalah laju respirasi, susut bobot, kekerasan, TPT, tingkat kerusakan, dan organoleptik. Hasil interaksi terbaik ditunjukkan pada perlakuan 7% konsentrasi asap cair bambu tabah dan perendaman 10 menit, dengan nilai rata-rata parameter laju respirasi 51.18 ml CO2/kg.jam, nilai rata-rata susut bobot dengan nilai 17.61%, nilai rata-rata kekerasan 3.82 kg, nilai rata-rata TPT 15.65 %Brix, nilai tingkat kerusakan 2.40, nilai rata-rata organoleptik rasa sebesar 4.67, aroma sebesar 4.54 dan warna sebesar 3.87. Disimpulkan bahwa kombinasi perlakuan A4B1 (konsentrasi asap cair bambu tabah 7% dengan perendaman selama 10 menit) adalah kombinasi terbaik untuk menjaga kesegaran dan memperlambat penurunan kualitas buah pisang Cavendish hingga akhir periode penyimpanan hari ke-15. ABSTRACT Cavendish banana one of the horticultural products that are prone to physiological setbacks and very vulnerable to physical damages after harvest. Various concentrations of tabah bamboo liquid smoke with different soaking times can use as natural preservatives. The bananas used in this study were Cavendish bananas from Buleleng, every bunch consists of at least ten banana with a length of 18.59 cm and a weight of 125 ± 5 g. This study aims to find the best treatment combination of the treatmentoof liquid smoke concentration and soaking time to maintain freshness and shelf life of Cavendish bananas during storage. The experimental design used in this study was a Completely Randomized Design (CRD) with two factors, the first factor was the concentration of tabah bamboo liquid smoke, and the second factor was the soaking time. The first factor consists of four levels of concentration namely 1%, 3%, 5%, and 7%. The second factor consists of three levels of soaking time, namely 10 minutes, 20 minutes and 30 minutes with storage temperature using room temperature (28 ± 2oC).  The parameters observed in this study are: repiration rate, weight loss, hardness, level of damages, TPT and organoleptics. The best interaction results are shown in the treatment of 7% concentration of tabah bamboo liquid smoke with 10 minutes of soaking with an average value of respiration rate parameters of 51.18 ml CO2 / kg.hour, an average value of weight loss with a value of 17.61%, an average value of hardness of 3.82 kg, the average value of TPT was 15.65% Brix, the value of the level of damage was 2.40, the average organoleptic value of taste was 4.67, aroma was 4.54 and color was 3.87. The conclus of this study indicates that the combination of A4B1 (7% tabah bamboo liquid smoke concentration with soaking for 10 minutes) is the best combination to keep freshness and the quality of green bananas until the storage period of the 15th day.

scholarly journals Development of Teaching Materials of Poetry Writing Using Pictures for the Elementary Students

2020 ◽  
Author(s):  
Satinem ◽  
Juwati
Keyword(s):  
Group Level ◽  
Teaching Materials ◽  
Average Value ◽  
High Level Group ◽  
Significant Difference ◽  
Poetry Writing ◽  
High Level ◽  
Value Of Learning ◽  
Level Group ◽  
Test Result

The research aims to develop the product of Teaching Materials of Poetry Writing Using Pictures. This developed teaching material result is expected to be used by the students of grade V of SD Xaverius Lubuklinggau, SD Negeri 44 Lubuklinggau, and SD Negeri 20 Lubuklinggau in learning to write poetry.The method used in research is research and development or better known as R &amp; D.If the calculation of the data is smaller than the alpha value (0.05), it means that there has been a significant difference before it is used after the use of poetry writing materials compared to the KKM of each school, so that the Teaching Materials of Poetry Writing Using Pictures is declared effective. From the calculation bySPSS, the results obtained for the test value tcount 11.219 and ttable 2.045 for (d) 30 and alpa 0.05 in high level group students of SD Xaverius. While for the average level group shows the value of tcount 9,416 and ttable 2.042 for (d) 30 and alpha 0.05. For the low group level, gained the tcount value of 4.859 and ttable 2,110 for (d) 17 and alpha 0.05, thus it can be concluded that tcount&gt; ttable, so H0 is rejected, and H1 is accepted. In the other word, it can be concluded that tcount&gt; ttable, so that H0 is rejected.Based on t test result from three schools, it can be concluded that tcount&gt; ttable, so H0 is rejected, and Ha accepted. The average value of learning completeness after using writing materials is the same or greater with the Minimal Completeness Criteria (KKM) in each school, meaning that the teaching materials is effective used to improve the students’ ability in writing poetry.

scholarly journals Development of Teaching Materials of Poetry Writing Using Pictures for the Elementary Students

2018 ◽  
Vol 9 (3) ◽  
pp. 1 ◽  
Author(s):  
Satinem ◽  
Juwati
Keyword(s):  
Group Level ◽  
Teaching Materials ◽  
Average Value ◽  
High Level Group ◽  
Significant Difference ◽  
Poetry Writing ◽  
High Level ◽  
Value Of Learning ◽  
Level Group ◽  
Test Result

The research aims to develop the product of Teaching Materials of Poetry Writing Using Pictures. This developed teaching material result is expected to be used by the students of grade V of SD Xaverius Lubuklinggau, SD Negeri 44 Lubuklinggau, and SD Negeri 20 Lubuklinggau in learning to write poetry.The method used in research is research and development or better known as R & D.If the calculation of the data is smaller than the alpha value (0.05), it means that there has been a significant difference before it is used after the use of poetry writing materials compared to the KKM of each school, so that the Teaching Materials of Poetry Writing Using Pictures is declared effective. From the calculation bySPSS, the results obtained for the test value tcount 11.219 and ttable 2.045 for (d) 30 and alpa 0.05 in high level group students of SD Xaverius. While for the average level group shows the value of tcount 9,416 and ttable 2.042 for (d) 30 and alpha 0.05. For the low group level, gained the tcount value of 4.859 and ttable 2,110 for (d) 17 and alpha 0.05, thus it can be concluded that tcount> ttable, so H0 is rejected, and H1 is accepted. In the other word, it can be concluded that tcount> ttable, so that H0 is rejected.Based on t test result from three schools, it can be concluded that tcount> ttable, so H0 is rejected, and Ha accepted. The average value of learning completeness after using writing materials is the same or greater with the Minimal Completeness Criteria (KKM) in each school, meaning that the teaching materials is effective used to improve the students’ ability in writing poetry.

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