A Simulation Research Method for Large-scale Parallel Truss Deployment Mechanism in Space

2019 ◽  
Author(s):  
Shaoming Xie ◽  
Chuankun Li ◽  
Xihui Liu ◽  
Yushu bian
Keyword(s):  
Research Method ◽  
Large Scale ◽  
Simulation Research

scholarly journals Habitability of galaxies and the application of merger trees in astrobiology

2019 ◽  
pp. 25-43
Author(s):  
N. Stojkovic ◽  
B. Vukotic ◽  
M.M. Cirkovic
Keyword(s):  
Spatial Resolution ◽  
Research Method ◽  
Large Scale ◽  
High Mass ◽  
Historical Contingency ◽  
Causal Factors ◽  
New Era ◽  
Present Epoch ◽  
General Issue ◽  
Habitable Zones

Galaxies represent the main form of organization of matter in our universe. Therefore, they are of obvious interest for the new multidisciplinary field of astrobiology. In particular, to study habitability of galaxies represents one of the main emerging challenges of theoretical and numerical astrobiology. Its theoretical underpinnings are, however, often confused and vague. Here we present a systematic attempt to list and categorize major causal factors playing a role in emergent habitability of galaxies. Furthermore, we argue that the methodology of cosmological merger trees is particularly useful in delineating what are systematic and lawful astrobiological properties of galaxies at present epoch vs. those which are product of historical contingency and, in particular, interaction with wider extragalactic environment. Employing merger trees extracted from cosmological N-body simulations as a new and promising research method for astrobiology has been pioneered by Stanway et al. (2018). We analyse the general issue of applicability of merger trees and present preliminary results on a set of trees extracted from the Illustris Project. In a sense, this approach is directly complementary to using large-scale cosmological simulations to study habitable zones of individual galaxies with high mass/spatial resolution; taken together, they usher a new era of synergy and synthesis between cosmology and astrobiology.

scholarly journals Research on 5G Millimeter Wave Channel Estimation Algorithm

2019 ◽  
pp. 74-77
Author(s):  
Xu Shuang
Keyword(s):  
Channel Estimation ◽  
Millimeter Wave ◽  
Massive Mimo ◽  
Large Scale ◽  
Low Frequency ◽  
Estimation Algorithm ◽  
Simulation Research ◽  
Wave Technology ◽  
Wave Channel ◽  
Mimo Technology

With the explosive growth in the number of communication users and the huge demand for data from users, Limited low-frequency resources have been far from being satisfied by users. The combination of Massive MIMO technology and millimeter-wave technology has brought new hope to users. In this paper, several basic algorithms are placed under the millimeter wave large-scale antenna channel for simulation research.

scholarly journals E-Assessment for Characters Independence

2020 ◽  
Vol 14 (15) ◽  
pp. 125
Author(s):  
Asrial Asrial ◽  
Syahrial Syahrial ◽  
Maison Maison ◽  
Muhaimin Muhaimin ◽  
Dwi Agus Kurniawan
Keyword(s):  
Student Learning ◽  
Research Method ◽  
Large Scale ◽  
Assessment And Evaluation ◽  
Teacher Responses

This study aims to apply E-assessment and evaluation of the character of student learning independence. E-Assessment and evaluation of student learning independence in this study to see the character of student learning independence in science subjects and how the teacher responds to the development of E-Assessment and evaluation of student learning independence with the MySQL system. This research method uses 3 stages, namely: (1) Development, (2) Implementation, and (3) Evaluation carried out on respondents totaling 529 students and 14 teachers in Jambi Province of Indonesia. The results of this study are the validator gives good results regarding the assessment of e-independence characters in the category given is very feasible and obtained valid statements of 24 statements with a reliability value of 0.870. Indicate that the character of student learning independence in learning is classified as good 65.8% (348 students of 529 students) and teacher responses are classified as good with 57% (8 teachers of 14 teachers). So it was concluded that the E-Assessment received a good response and needed to be developed on a large scale.

Simulation Research of a Type of Pressure Vessel under Complex Loading Part 2 Complex Load of the Numerical Analysis

2013 ◽  
Vol 756-759 ◽  
pp. 4662-4667
Author(s):  
Jun Chen Li ◽  
Jie Sheng ◽  
Zhang Yu Fu
Keyword(s):  
Pressure Vessel ◽  
Large Scale ◽  
Mechanical Response ◽  
Simulation Analysis ◽  
Complex Loading ◽  
Operating Conditions ◽  
Small Scale ◽  
Simulation Research ◽  
Complex Load ◽  
Calculation Results

Loading of pressure vessel was usually complicated in practical service operating conditions. Simulation model of pressure vessel was built by method of finite element simulation analysis, and structured mesh generation was realized. Numerical calculation was come true, stress/strain distribution of pressure vessel was obtained in applying of the multi-load. On this basis, this condition compared with alone applied many loadings. The calculation results indicate the validity of this model, and results are evaluated according to relevant standards, which provide a way to study mechanical response in the actual working conditions. In addition, sub-model is analyzed for key part of pressure vessel, and transition is come true from large scale simulation to small scale simulation.

A Research on the Protective Performance of Green Organic Composite Coating on Vehicle Equipment

2013 ◽  
Vol 325-326 ◽  
pp. 79-82
Author(s):  
An Tao Xu ◽  
Bing Luo ◽  
Fan Zhang ◽  
Fu Jin ◽  
Yang Yang Liu
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Composite Coating ◽  
Research Method ◽  
Open Circuit Potential ◽  
Electrochemical Impedance ◽  
Open Circuit ◽  
Simulation Research ◽  
Damage Level ◽  
Damage Simulation ◽  
Protective Performance

By adopting coating damage simulation research method with open circuit potential and electrochemical impedance spectroscopy, the influence of different damage levels of green organic composite coating to its protective performance has been studied. The research found that the variation of open circuit potential partly reflected the damage level of the coating. When K is less than or equal to 0.04, the coating still has favorable protective performance, while K is higher than 16, the protective performance of the coating is basically unavailable, but when K falls in between, the protective performance of the coating is fair good.

scholarly journals Go-Food Features and Social Implications in The Community When #Dirumahaja Programs Are Implemented

2020 ◽  
pp. 255-262
Author(s):  
Edy Prihantoro ◽  
Didin Mukodim ◽  
Noviawan Rasyid Ohorella ◽  
Astiyani Lestari
Keyword(s):  
Social Media ◽  
Technology Acceptance ◽  
Technology Acceptance Model ◽  
Research Method ◽  
Large Scale ◽  
Advanced Technology ◽  
Public Facilities ◽  
The Government ◽  
Acceptance Model ◽  
Descriptive Method

When the Covid-19 pandemic begins to spread in Indonesian society, the government must limit the space for people to stay indoors. The government has done everything from closing schools and public facilities to implementing Large-Scale Social Restrictions (PSBB) in order to break the chain of spreading the Covid-19 virus. Then the Indonesian people reminded each other to stay indoors. Until the hashtag #dirumahaja appeared on Twitter social media. Due to the limited space for people to leave the house, especially when buying food, people choose to take advantage of advanced technology by buying food online using the GoFood Feature Gojek application. The purpose of this study was to determine how much the effectiveness of the GoFood features in the Gojek application on the ease with which people order food when #dirumahaja is implemented. The research method used is descriptive method with a quantitative approach and has a total of 244 respondents. Collecting data using a questionnaire technique or distributing questionnaires. The theory used in this research is the Technology Acceptance Model. The results of this study are that there is an effect of the Go-food feature in the Gojek application on the ease with which people order food when the #dirumahaja Program is implemented. The ease of features in the Gojek application turns out to make it easier for people who need food through the Gojek application during the Pandemic.

scholarly journals FACTORS RELATED TO CONTINUATION OF MANGO CULTIVATION

2019 ◽  
Vol 10 (2) ◽  
pp. 52
Author(s):  
Alisabela Dhiya Rachmah ◽  
Elly Rasmikayati ◽  
Bobby Rachmat Saefudin
Keyword(s):  
Land Tenure ◽  
Research Method ◽  
Large Scale ◽  
Fisher Exact Test ◽  
Exact Test ◽  
Access To Credit ◽  
Marketing Activities ◽  
Commercial Crop ◽  
Ease Of Access ◽  
Paddy Cultivation

Usually, commodities shift occurs from food crops to commercial crops, such as horticulture with the aim of improving the welfare of farmer’s life. However, a different situation happened in Sedong Subdistrict, Cirebon Regency where mango farmers switched to paddy cultivation which is a non commercial crop. Most mango farmers began to abandon mango cultivation and made paddy cultivation as their main livelihood. Therefore this research aimed at analyzing the factors underlying the farmer’s decisions to abandon or continue mango cultivation and describing the potential and constraints of mango cultivation. Samples taken were 65 farmers in Sedong Subdistrict, Cirebon Regency consisting of 30 present-grower of mango who also experienced paddy cultivation and 35 past-grower of mango who switched to paddy cultivation. The research method used is the survey research method with data analysis using descriptive statistics and crosstabulation analysis with the fisher exact test. The results showed that the factors related to the farmer's decision to abandon or continue mango cultivation consisted of age, farmer's perception of mango cultivation, risk taking attitude, land tenure status, land area, and farmer group membership. Mango farming has easy transportation in the marketing activities provided by traders, as well as ease of access to credit bunt only for large scale farmers. The constraints felt by farmers in conducting mango farming consist of limited capital for small farmers,

scholarly journals ANALISIS YURIDIS TERHADAP KEBIJAKAN PEMERINTAH MENGENAI PENANGANAN PANDEMI VIRUS CORONA DISEASE 2019 (COVID-19) DI INDONESIA

2021 ◽  
Vol 6 (2) ◽  
pp. 46-58
Author(s):  
Anwar Hidayat ◽  
Budiman
Keyword(s):  
Research Method ◽  
Large Scale ◽  
Social Impact ◽  
Virus Disease ◽  
Legal Research ◽  
Conceptual Approach ◽  
Corona Virus ◽  
The Republic ◽  
The Government ◽  
The Impact

Perkembangan pandemi Covid-19 saat ini sangat mengkhawatirkan dimana terjadinya suatupeningkatan kasus corona khusus di Indonesia. Penelitian ini bertujuan untuk mengetahuidan menganalisis kebijakan yang diambil pemerintah dalam penanganan pandemi Covid-19serta langkah-langkah yang diambil pemerintah untuk menganggulangi dampak-dampak, terutama dampak dari segi ekonomi dan sosial akibat pandemi Covid-19. Metode penelitianhukum yang digunakan yakni metode penelitian hukum normatif. Adapun pendekatan yangdigunakan dalam penelitian ini adalah pendekatan perundang-undangan dan pendekatankonseptual. Penelitian ini berlandaskan pengaturan perundang-undangan yang mengaturmengenai penanganan dan penganggulangan pandemi Covid-19 serta analisis atas konseppenetapan peraturan perundang-undangan tersebut. Hasil dari penelitian ini adalah dalamrangka penanganan Covid-19, berawal dari pemerintah tmengeluarkan kebijakan tentangPembatasan Sosial Berskala Besar yang merujuk pada Undang-Undang Nomor 6 Tahun2018 tentang Kekarantinaan Kesehatan. Peraturan pelaksanaannya yaitu PeraturanPemerintah Nomor 21 Tahun 2020 tentang Pembatasan Sosial Berskala Besar, sertaKeputusan Presiden tentang Kedaruratan Kesehatan sampai dengan saat ini pemerintah telahmengeluarkan kebijakan PPKM yang dimana dilakukan secara berkala. Untukmenganggulangi dampak Covid-19 dari segi ekonomi dan sosial pemerintah mengambilbeberapa kebijakan-kebijakan, yang diantaranya adalah: Peraturan Menteri KeuanganRepublik Indonesia Nomor 23/Pmk.03/2020 tentang Insentif Pajak Untuk WajibPajakTerdampak Wabah Virus Corona; Peraturan Otoritas Jasa Keuangan Republik Indonesia Kata Kunci : Kebijakan, Penanganan, Covid-19 The current development of the Covid-19 pandemic is very worrying where there is anincrease in special corona cases in Indonesia. This study aims to identify and analyze thepolicies taken by the government in handling the Covid-19 pandemic and the steps taken bythe government to mitigate the impacts, especially the economic and social impacts of theCovid-19 pandemic. The legal research method used is the normative legal research method. The approach used in this research is a statutory approach and a conceptual approach. Thisresearch is based on the legislation governing the handling and handling of the Covid-19pandemic as well as an analysis of the concept of establishing these laws and regulations. The results of this study are in the context of handling Covid-19, starting with thegovernment issuing a policy on Large-Scale Social Restrictions which refers to Law Number6 of 2018 concerning Health Quarantine. The implementing regulations are GovernmentRegulation Number 21 of 2020 concerning Large-Scale Social Restrictions, as well as thePresidential Decree on Health Emergencies. Until now, the government has issued a PPKMpolicy which is carried out regularly. To address the economic and social impact of Covid- 19, the government has taken several policies, including: Regulation of the Minister ofFinance of the Republic of Indonesia Number 23/Pmk.03/2020 concerning Tax Incentives forTaxpayers Af ected by the Corona Virus Outbreak; Regulation of the Financial ServicesAuthority of the Republic of Indonesia Number 11 /Pojk.03/2020 concerning NationalEconomic Stimulus as a Countercyclical Policy for the Impact of the Spread of Corona VirusDisease2019; and Instruction of the President of the Republic of Indonesia Number 4 of2020 concerning Refocussing of Activities, Reallocation of Budgets, and Procurement ofGoods and Services in the Context of Accelerating Handling of Corona Virus Disease 2019(Covid-19). Keyword : Policy, Handling, Covid-19

scholarly journals KAJIAN KRIMINOLOGI TERHADAP KEJAHATAN BEGAL DI KOTA SAMARINDA

LEGALITAS ◽  
2020 ◽  
Vol 5 (1) ◽  
pp. 30
Author(s):  
Muhammad Laksamana Dan Dina Paramitha Hefni Putri
Keyword(s):  
Moral Development ◽  
Research Method ◽  
Large Scale ◽  
Early Age ◽  
Economic Factors ◽  
School Age ◽  
Legal Research ◽  
Motor Action ◽  
The Public ◽  
The City

Begal motor action in the city of Samarinda increasingly disturbing the public, they acted not knowing the time and place. The intensity has also increased sharply. However, there has been no preventive efforts by the police on a large scale to ensure that Samarinda is free from the "colonialism" of thugs. What factors caused the crime of begal in Samarinda City.How is the effort made by law enforcers to deal with the crime of begal in Samarinda City The type of research used in this study is empirical legal research, which is a legal research method that looks directly at the field dataThe results of the research and discussion of the factors causing the occurrence of begal are, Economic Factors (perpetrators want to pay off debts to their own families), Factors of Reason Weaknesses Weaknesses reasoning power of perpetrators who make them choose the wrong choice between two choices. Weak perpetrators' reasoning power, which is sometimes found perpetrators still a student, Weaknesses Faith Factors Lack of planting religious values by parents towards children from an early age and the environment that is less supportive makes a child, especially teenagers at school age, very vulnerable to moral development or akhlaknya, Drug Addiction Factor some Actors said he always felt restless and could not concentrate properly when not consuming methamphetamine. There are three ways that countermeasures can be made against crime, namely, pre-emptive, preventive and repressive

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