检索结果-内蒙古大学图书馆

In silico analysis of tetrahydroxycurcumin compound in tumeric (Curcuma longa) as inhibitor of SARS-CoV-2 virus replication

引用

AIP Conference Proceedings 2023年第1期2748卷

作者： Mohamad Amin Nanda Hilda Khikmawati Suryadi Suryadi Rifcha Fachrunnisa Ihya Fakhrurizal Amin Dina Maulina Ahya Zhilalikbar Amin Nik Ahmad Nizam Nik Malek Restu Fitriani Department of Biology Faculty of Mathematics and Natural Sciences Universitas Negeri Malang Jl. Semarang No.5 Malang 65145 Indonesia Special Education Department Faculty of Education Universitas Negeri Malang Jl. Semarang No.5 Malang 65145 Indonesia Faculty of Medicine Universitas Indonesia Jakarta Indonesia Biology Education Study Program Faculty of Teacher Training and Education Universitas Lampung Lampung Indonesia Department of Biosciences Faculty of Science Universiti Teknologi Malaysia Johor Malaysia Study Program of Informatics Engineering Faculty of Computer Sciencies Universitas Brawijaya Malang Indonesia Biotechnology Program Faculty of Mathematics and Natural Sciences Universitas Negeri Malang Jl. Semarang No.5 Malang 65145 Indonesia

There are many uses of natural ingredients to find out their potential in overcoming Coronavirus Disease 2019. One of the plants that is often used to treat various diseases, including SARS-Cov2 infection is turmeric. Turmeric contains Tetrahydroxycurcumin compounds. The aim of this research was to study the potential of Tetrahydroxycurcumin in preventing infection with the SARS-CoV-2 virus. The results showed that Tetrahydroxicurcumin has the potential to inhibit Tyrosine protein kinase ABL1, which is a protein that plays a role in the preparation of the cytoskeleton during viral infection. The binding affinity of Tetrahydroxycurcumin for this protein is -8.4 kcal/mol.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Comparison analysis of Vehicle Operating Cost (VOC) between new toll road plan with existing road

引用

IOP Conference Series: Materials Science and engineering 2021年第2期1098卷

作者： M S D Cahyono L S B Wibowo Civil Engineering Study Program Faculty of Engineering Widya Kartika University Jl. Sutorejo Prima Utara Ii No.1 Surabaya Indonesia

Transportation planning, as the design of infrastructure needs and transportation service for the existence of an area, is an important factor for growth and sustainability of a region. Nowadays, the increase of vehicle number is not followed by the extending of infrastructure road, resulting in traffic jam in certain roads. The congestion occurring causes the increase of travel time so it will interfere the productivity of various sectors. The purpose of this study was to determine the vehicle operating costs (VOC) by using the Pacific Consultant International (PCI) method. This PCI method consisted of fixed costs and variable costs, in which the results were added to find out the total vehicle operating costs (VOC) per vehicle and vehicle operating costs (VOC) per day. The results showed that the vehicle operating costs (VOC) via the toll road were smaller than the costs of the existing road. Operational costs of vehicles (VOC) of passenger cars, buses, and trucks that passed the existing road in the morning peak hours were IDR 10.120,88, IDR 23.803,97, and IDR 25366.62 sequentially, whereas if those groups of vehicles passing via the toll road, showed the price respectively IDR 7.107,93, IDR 19.434,12 and IDR 22.180,15.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Tuning with Ziegler Nichols Method for Design PID Controller At Rotate Speed DC Motor

引用

IOP Conference Series: Materials Science and engineering 2020年第1期846卷

作者： Nicolaus Allu Apriana Toding Study Program of Electrical Engineering Study Program Faculty of Engineering [Universitas Kristen Indonesia Paulus

DC motor is a type of motor that is widely used in industry, electronics and supporting components for some electronic equipment or instrumentation. But now the PID controller is still widely used in various industrial sectors, this is due to its toughness to overcome various problems that exist in the industry. But there is one drawback that is the tuning method, the tuning process must be done by trial and error. More tuning procedures done manually by trial and error method that the result is not necessarily true. To overcome these problems required an alternative approach that can achieve a relatively better value and faster to perform the tuning process. In this case the alternative method used is tuning with Ziegler Nichols. Based on the simulation performed with the controlled torch, the value of the disturbance with the controller Kp = 3,6, Ki = 2,857 and Kd = 1,134 happened to the motor rotation at the lowest interference occurred at 1818 RPM while the highest rotation disturbance reached 2177 RPM from the nominal rotation speed of 2000 RPM for 80 seconds and suffered a friction coefficient of about 20 seconds.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Water availability model based on system dynamic: Sadar sub-watershed case study

引用

IOP Conference Series: Earth and Environmental Science 2021年第1期819卷

作者： ET Asmorowati D Sarasanty Study program of Civil Engineering Faculty of Engineering Majapahit Islamic University Jl. Raya Jabon km 07 Mojokerto East Java Indonesia

Sadar Sub-watershed is one of 32 Brantas sub-watersheds located in the southern part of Mojokerto district and parts of the city of Mojokerto. Based on government regulation (PP) No 26 of 2008, Mojokerto is one of the national strategic areas from the point of view of economic interests. The National Strategic Area (KSN) with an economic interest point of view has an important role for national development, because these areas have the potential for a fast-growing economy and a leading sector capable of driving the national economy. This economic growth must be supported by the availability of various supporting facilities, one of which is the provision of clean water. The current condition of the existence of clean water is decreasing due to various reasons. The purpose of this research is to predict the availability of water in the future as a basis a water resources planning. The stages of the research are as follows: (1). Secondary data collection in the study. The data is used to calculate current water availability and predict future water availability. Primary data is in the form of interviews with groundwater users and experts. (2) Data Analysis. (3) Build the model of water availability in the study area. (4) Simulation of water availability in the study area under various scenario (5). Model validation. The results of this study indicate that there is an effect of land-use change on water availability in the sub-basin. Water conservation scenarios can maintain water availability in the future.

关键词：

来源：评论

学校读者我要写书评

暂无评论

A comprehensive approach utilizing quantum machine learning in the study of corrosion inhibition on quinoxaline compounds

Artificial Intelligence Chemistry

引用

Artificial Intelligence Chemistry 2024年第2期2卷

作者： Muhamad Akrom Supriadi Rustad Hermawan Kresno Dipojono Ryo Maezono Study Program in Informatics Engineering Faculty of Computer Science Universitas Dian Nuswantoro Semarang 50131 Indonesia Research Center for Materials Informatics Faculty of Computer Science Universitas Dian Nuswantoro Semarang 50131 Indonesia Quantum and Nano Technologies Research Group Faculty of Industrial Technology Institut Teknologi Bandung Bandung 40132 Indonesia School of Information Science Japan Advanced Institute of Science and Technology Ishikawa 923-1292 Japan

In this investigation, a quantitative structure-property relationship (QSPR) model coupled with a quantum neural network (QNN) was used to explore the corrosion inhibition efficiency (CIE) of quinoxaline compounds. Integrating quantum chemical properties (QCP) features reduced computational burden by strategically reducing the features from 11 to 4 while maintaining prediction accuracy. QNN models outperform traditional methods like artificial neural networks (ANN) and multilayer perceptron neural networks (MLPNN), with a coefficient of determination (R 2 ) value of 0.987, coupled with diminished root mean square error (RMSE), mean absolute error (MAE), and mean absolute deviation (MAD) values of 0.97, 0.92, and 1.10, respectively. Predictions for six newly synthesized quinoxaline derivatives: quinoxaline-6-carboxylic acid (Q1) , methyl quinoxaline-6-carboxylate (Q2) , (2 E ,3 E )-2,3-dihydrazono-1,2,3,4-tetrahydroquinoxaline (Q3) , (2 E ,3 E ) 2,3-dihydrazono-6-methyl-1,2,3,4-tetrahydroquinoxaline (Q4) , ( E )-3-(4-methoxyethyl)-7-methylquinoxalin-2(1 H)-one (Q5) , and 2-(4-methoxyphenyl)-7-methylthieno[3,2- b ] quinoxaline (Q6) , show remarkable CIE values of 95.12, 96.72, 91.02, 92.43, 89.58, and 93.63 %, respectively. This breakthrough technique simplifies testing and production procedures for new anti-corrosion materials.

关键词： Quantum neural network QSPR Corrosion inhibition Quinoxaline

来源：评论

学校读者我要写书评

暂无评论

PID Control for a Manipulator Robot Using Internet Networking and Matlab-based

PID Control for a Manipulator Robot Using Internet Networkin...

引用

International Conference on Electrical, Electronic, informatics and Vocational Education 2018, ICE-ELINVO 2018

作者： Khairudin, M. Study Program of Electrical Engineering Faculty of Engineering Yogyakarta State University Indonesia

This paper presents the design to the implementation of the proportional, integral and derivative (PID) remote control system of robot manipulator using Matlab-based Internet network. These studies seek the solution of distance operations, time constraints, and monitoring the operation response of robot manipulator motion as robot that possible to carry dangerous objects which is should be monitored remotely during the operation. PID control system that is controlled remotely by the client and server systems. The monitoring process of robot manipulator is Matlab-based. Testing is done by doing observation to the speed response of the DC motor as the robot's axis driver on open loop system condition, and then doing observation using PID control system. The test of axis robot driver has also been carried out with a variety of no-load and load conditions. The test results showed the motor driver of robot will work optimally when using PID control system. The data acquisition and the stability of data communication between the client and server are affected by the condition of the existing data transfer on the network and also the distance from the server to the plant. © Published under licence by IOP Publishing Ltd.

关键词： DC motors

来源：评论

学校读者我要写书评

暂无评论

Effect of Value Congruence, Brand Distinctiveness, Brand Social, Brand Warmth, and Memorable Brand Experience on Customer-Brand Identification and Brand Loyalty (Case study: Brand of ACER Laptop) 2

Effect of Value Congruence, Brand Distinctiveness, Brand Soc...

引用

2nd International Conference on Energy, Environmental and Information System, ICENIS 2017

作者： Susanty, Aries Tresnaningrum, Aprilia Program Study of Industrial Engineering Faculty of Engineering Diponegoro University Semarang Indonesia

This study has several purposes. First, this study aims to investigate the effect of consumer-brand value congruence, brand distinctiveness, brand social benefit, brand warmth, and memorable brand experience on customer-brand identification (CBI). We call all of those factors as the antecedent factor of CBI. Second, this study aims to investigate the effect of CBI on customer loyalty. Third, investigate the role of product involvement as a moderating variable of the relationship between brand distinctiveness, brand social benefit, brand warmth, memorable brand experience and CBI. This research used primary data collected through closed questionnaires using a Likert scale of 1-5. The total sample size was 273 respondents located in Semarang City who has or has been using Acer Laptop for minimal one year. This research was conducted using Partial Least Square (PLS) method through SmartPLS 3.0 software. The result of data processing indicated that all of the antecedent factors of CBI have the positive and significant effect on CBI of the user of Acer Laptop. In this case, among the five antecedent factors of CBI, value congruence has the greatest effect on CBI of the user of Acer Laptop. The result of data processing also indicated that CBI has the positive and significant effect on brand loyalty of user of Acer Laptop. This study fails to prove the role of product involvement as a moderating variable of the relationship between brand distinctiveness, brand social benefit, brand warmth, memorable brand experience and CBI of the user of Acer Laptop. Moreover, based on the result of hypothesis testing, this study gives some recommendation to Acer Laptop to develop or create some features which are match with the value of user of Laptop Acer in Semarang City. © 2018 The Authors, published by EDP Sciences.

关键词： Least squares approximations

来源：评论

学校读者我要写书评

暂无评论

Seasonal variation of marine debris at Manado Bay (North Sulawesi, Indonesia)

引用

IOP Conference Series: Earth and Environmental Science 2021年第1期744卷

作者： M T Lasut L R Pane D V D Doda V A Kumurur V Warouw J M Mamuaja The study program of Aquatic Sciences Faculty of Fisheries and Marine Sciences Sam Ratulangi University Manado Indonesia The study program of public health Faculty of Public Health Sam Ratulangi University Manado Indonesia The study program of Architecture Faculty of Engineering Sam Ratulangi University Manado Indonesia The study program of Marine Sciences Faculty of Fisheries and Marine Sciences Sam Ratulangi University Manado Indonesia

Marine debris has become a global concern due to its impact on marine ecosystems. These materials generally come from land and are deposited to marine environment through different agent of carrier. Many efforts are being made to monitor the dynamics of the debris including their presence and their variability in relation to seasons. The latter are assumed from the facts that the presence of the debris is mainly affected by the waves, speed, and direction of ocean currents in the area of interest. In this study, variation of debris in dry and wet season at Manado Bay was assessed by using a shoreline technique. Two locations are selected, Bailang and Malalayang beach. The samplings were conducted in August 2019 (represent dry season) and January 2020 (represent wet season). Several parameters are examined during the sampling; they are: amount of material, type of debris, composition, and spatial density of each type for macro-size (>2.5 cm) and meso-size (0.5–2.5 cm). The results showed that there was variation on composition and density, but the types of debris remain unchanged. Our present study concluded that variation in the season do not affect the variability of marine debris in Manado Bay.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Effect of Additive Chemicals on Soil Characteristics

引用

Journal of Physics: Conference Series 2020年第5期1477卷

作者： Encu Sutarman Widjajani Estiyan Dwipriyoko Civil Engineering Study Program Engineering Faculty Universitas Langlangbuana Bandung Indonesia Industrial Engineering Study Program Engineering Faculty Universitas Langlangbuana Bandung Indonesia Informatics Study Program Engineering Faculty Universitas Langlangbuana Bandung Indonesia

The occurrence of landslides in the hills of Walahir, Kidang Pananjung village, Cililin subdistrict. Bandung in May 2004 needed attention and research so that the causes of the landslide could be identified. This landslide took many lives and property, heaped around 5 hectares of rice fields and residents' villages below and claimed 15 lives. Based on geotechnical investigations, the slip plane is at a depth of 4 meters from the ground surface and the area of the landslide ranges from 30,000 m2 leaving weathered rock beneath. Is the opening of agricultural land and fields followed by the use of chemical fertilizers is one of the causes of landslides? This study aims to determine the effect of a single chemical fertilizer (Urea, Za, SP36) and compound (Green Giant NPK, MKP) on the soil under conditions of optimum water content and water saturation or soaked which are carried out at the Chemical Laboratory of the Department of Energy and Mineral Resources of Bandung and Mechanics Laboratory Bandung Institute of Technology. Research on the influence of chemical fertilizers which is carried out using percentages of 1%, 2% and 3% with a relatively short ripening time intends to analyze the extent to which chemical fertilizers have an effect. Research is limited to the identification of minerals and chemical elements of original soil, soil physis properties, Atterberg boundaries, soil index properties, soil classification, soil elastic modulus. Hypothesis; The chemical content of fertilizers in the soil causes changes in soil characteristics. The method of taking original soil is by drilling original soil around the area where landslide disaster occurred at the same height as the height of the landslide slope, soil samples taken from depths of 1 meter and 3 meters from the surface of the land or the base layer between soil and rocks based on ASTM D-1452, 1587, 1586. Laboratory data from the original soil and chemical soil mixture of fertilizers is needed as input data for

关键词：

来源：评论

学校读者我要写书评

暂无评论

Use of the Web API as a basis for obtaining the latest data on bitcoin prices at 30 exchange places

引用

IOP Conference Series: Materials Science and engineering 2021年第1期1125卷

作者： Rizky Parlika Arista Pratama Informatics Engineering Study Program Faculty of Computer Science National Development University 'Veteran' East Java Information Systems Study Program Faculty of Computer Science Raya Rungkut Madya Road Gunung Anyar Surabaya

Bitcoin has become a commodity traded by millions of traders from all over the world. This is one of the causes of fluctuating price movements. From the data we got on coinmarketcap, Bitcoin is traded on various cryptocurrency trading exchanges. And at every exchange that has a reputation, of course, has an API service to access historical data about the price movements of all the crypto commodities they have traded from the start. By using the PHP programming language and implementation of the CURL function for JSON readings, we can pull Bitcoin movement data in real time. In this paper, Bitcoin is specifically observed because it is the forerunner and the main cryptocurrency commodity traded and is a determinant of Alternative coin price movements in general. In this paper Bitcoin price monitoring is carried out at 30 reputable exchange places through API access provided by each exchange place. Furthermore, conclusions are drawn about the various variants of how to access the API from the 30 bitcoin exchange places. The program code that is displayed directly in this paper can then be used as an initial reference if you want to develop a Cryptocurrency price movement monitoring application for Bitcoin. At the end of the paper, an example of the application of Bitcoin price monitoring will be presented using a web-based application containing charts and supporting indicators as well as a telegram bot to display price depth charts.

关键词：

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：