RA JOURNAL OF APPLIED RESEARCH最新文献_第5页

Design of Maximum Power Point Tracking Method Using Modified Perturb and Observation with Cuk Converter 基于Cuk变换器的修正摄动与观测的最大功率点跟踪方法设计

RA JOURNAL OF APPLIED RESEARCH Pub Date : 2023-07-07 DOI: 10.47191/rajar/v9i7.03

I. W. D. Pancane, Ahmad Aslih Syani Abu Zahir

{"title":"Design of Maximum Power Point Tracking Method Using Modified Perturb and Observation with Cuk Converter","authors":"I. W. D. Pancane, Ahmad Aslih Syani Abu Zahir","doi":"10.47191/rajar/v9i7.03","DOIUrl":"https://doi.org/10.47191/rajar/v9i7.03","url":null,"abstract":"Photovoltaic is a resource that cannot be depleted and is widely available as future energy. Photovoltaic modules are affected by the intensity of radiation from a changing sun. Therefore it takes a method to find the maximum power point of photovoltaic. One of the methods used is Maximum power point tracking (MPPT). From Photovoltaic it will be connected to a current sensor and a voltage sensor so that it is read by the microcontroller and connected to the DC-DC converter circuit. The microcontroller will be embedded with the Modified Perturb & Observe (P&O) method to adjust the voltage output from the DC-DC converter by adjusting the pulse width (dutycycle) on the PWM generated from the microcontroller. After that, the results of the converter are analyzed using a load in the form of an accumulator or battery. At the output of the converter, a current sensor and a voltage sensor will be given to determine the output of the DC-DC converter with the Cuk topology. After conducting testing and analysis, using the proposed method provides an efficiency of 83%, this is proven by the power and voltage values. Using MPPT is able to optimize the panel output power of 23.92W with an accumulator load of 12 Volts.","PeriodicalId":20848,"journal":{"name":"RA JOURNAL OF APPLIED RESEARCH","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85787063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ZAMBIA'S STRATEGIC ROADMAP FOR THRIVING AQUACULTURE MICRO, SMALL AND MEDIUM ENTERPRISES 赞比亚发展水产养殖中小微企业的战略路线图

RA JOURNAL OF APPLIED RESEARCH Pub Date : 2023-07-07 DOI: 10.47191/rajar/v9i7.01

Mildred Chuunga Muhyila, DR Egret Chanda Lengwe

{"title":"ZAMBIA'S STRATEGIC ROADMAP FOR THRIVING AQUACULTURE MICRO, SMALL AND MEDIUM ENTERPRISES","authors":"Mildred Chuunga Muhyila, DR Egret Chanda Lengwe","doi":"10.47191/rajar/v9i7.01","DOIUrl":"https://doi.org/10.47191/rajar/v9i7.01","url":null,"abstract":"At independence in 1964, Zambia inherited a dualistic economy characterized by foreign-owned industries, with the copper industry dominating and rural small-scale peasants, most of whom migrated to the urban areas in search of formal employment. From 1968, the Zambian government took over majority control (‘zambianisation’ or nationalisation) in some of the foreign-owned industries, but the rate of employment was not sufficient to absorb the rapidly expanding urban population resulting in a lot of people remaining unemployed. A decline in international copper prices in the early 2000’s brought a recession to the Zambian economy resulting in the failure of the nationalised industries thereby ousting more people out of formal employment. Lack of employment and the call for diversification away from copper mining required most Zambians to find alternative means of survival, hence the establishment of micro, small and medium enterprises (MSMEs). A reduction in naturally occurring water bodies brought about by climate change have hampered fishing, however, the country has other favourable conditions such as good soil formation, availability of borehole water and an ideal climate which can support aquaculture. The Zambian government has been supportive of the development of aquaculture MSMEs and the said government efforts are the focus of this article.","PeriodicalId":20848,"journal":{"name":"RA JOURNAL OF APPLIED RESEARCH","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89885140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Implementation of Scaffolding Assisted Project-Based Learning Models in Buffer Solution Materials 基于项目的脚手架式学习模式在缓冲溶液材料中的实现

RA JOURNAL OF APPLIED RESEARCH Pub Date : 2023-07-07 DOI: 10.47191/rajar/v9i7.02

M. Rusdi, Rayandra Asyhar, H. Haryanto

{"title":"Implementation of Scaffolding Assisted Project-Based Learning Models in Buffer Solution Materials","authors":"M. Rusdi, Rayandra Asyhar, H. Haryanto","doi":"10.47191/rajar/v9i7.02","DOIUrl":"https://doi.org/10.47191/rajar/v9i7.02","url":null,"abstract":"This study was conducted to solve of applying the learning model to skills and scientific process results in Buffer Solution learning materials in senior high school (SMA). In the early stages, the researchers designed scaffolding by linking the PjBL Flipped Classroom model, KPS, and buffer solution material. Then, these two products were validated by a team of experts involving scaffolding design validation, flow validation, learning design validation, and material validation to see the suitability of the scaffolding assistance at each stage of the PjBL Flipped Classroom model and the feasibility of the products developed and required to adopt the products produced to the principles set found in learning design. After completing the validation stage, the practitioner validation stage is continued to see the practicality of using the product being developed. Then a small group test is carried out to see the application of the product being developed. The results showed that learning chemistry using the Scaffolding Flow in the PJBL Flipped Classroom model could increase students' chemistry learning activities and outcomes on the concept of buffer solutions.","PeriodicalId":20848,"journal":{"name":"RA JOURNAL OF APPLIED RESEARCH","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75245866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimal Conditioning of Growth Media White Oyster Mushroom (Pleurotus ostreatus) to Increase Productivity 白平菇(Pleurotus ostreatus)增产培养基的优化调节

RA JOURNAL OF APPLIED RESEARCH Pub Date : 2023-06-22 DOI: 10.47191/rajar/v9i6.04

A. Hodijat, E. Nurlina

引用次数: 0

THE PARTICIPATION OF BLACK HA NHI PEOPLE IN Y TY, LAO CAI PROVINCE FOR LOCAL SUSTAINABLE TOURISM DEVELOPMENT 黑哈尼人的参与，为当地旅游业的可持续发展，老蔡省

RA JOURNAL OF APPLIED RESEARCH Pub Date : 2023-06-12 DOI: 10.47191/rajar/v9i6.03

D. Oanh, B. Q. Trang

{"title":"THE PARTICIPATION OF BLACK HA NHI PEOPLE IN Y TY, LAO CAI PROVINCE FOR LOCAL SUSTAINABLE TOURISM DEVELOPMENT","authors":"D. Oanh, B. Q. Trang","doi":"10.47191/rajar/v9i6.03","DOIUrl":"https://doi.org/10.47191/rajar/v9i6.03","url":null,"abstract":"From the application of theoretical issues about the local community in sustainable tourism development, the article analyzes and evaluates the role, level and form of participation of the local community – Black Ha Nhi people Y Ty in local sustainable tourism development. The studies show that at the Y Ty destination, the Black Ha Nhi have actively participated in the development of tourism in the locality. It can be said that they are the people who laid the foundation, pioneered and are an indispensable core component for local tourism activities. However, due to many different reasons (the economic conditions of the local community are still difficult, the level of awareness, especially awareness of knowledge, experience, and skills in tourism, etc.) is still limited. Their participation in tourism activities has not been highly effective. From there, the article proposes some recommendations to promote strengths and take advantage of opportunities; to limit weaknesses and challenges to promote more effectively the role of the Black Ha Nhi in particular, the local community in general, in the sustainable development of tourism in Y Ty.","PeriodicalId":20848,"journal":{"name":"RA JOURNAL OF APPLIED RESEARCH","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90534929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preservation of the Sea Alms Tradition at Teluk Penyu in Cilacap Regency: A Site Study 西拉卡摄政的特鲁克Penyu海布施传统的保存:一项现场研究

RA JOURNAL OF APPLIED RESEARCH Pub Date : 2023-06-08 DOI: 10.47191/rajar/v9i6.02

S. Slamet, R. Soelistijanto, E. Widiastuti, Nuryanti Nuryanti

{"title":"Preservation of the Sea Alms Tradition at Teluk Penyu in Cilacap Regency: A Site Study","authors":"S. Slamet, R. Soelistijanto, E. Widiastuti, Nuryanti Nuryanti","doi":"10.47191/rajar/v9i6.02","DOIUrl":"https://doi.org/10.47191/rajar/v9i6.02","url":null,"abstract":"Cilacap is a coastal area on the southern coast of Java with several beaches, one of which is Teluk Penyu Beach, where the traditional sea alms tradition is held annually. The tradition started with the 3rd Cilacap Regent Tumenggung Tjakrawerdaya III ordering an elder Pandanarang fisherman named Ki Arsa Menawi to threw offerings into the south sea along with other fishermen on Friday Kliwon in the Javanese month of Sura 1875. Since then, the custom of throwing offerings into the sea, with the term almsgiving ceremony, has been a tradition. The objectives of this study were: 1) to describe the history and procession of the traditional sea alms ceremony, and 2) to analyze the influence of the development of the Turtle Bay beach tourism object on the socio-economic conditions of the surrounding community. This type of research was qualitative with a phenomenological design. Key informants were traditional caretakers or stakeholders, while complementary informants were management, community representatives, and visitor representatives. Data collection techniques used were observation, documentation, and interviews. In contrast, data analysis techniques used interactive models of Miles and Huberman, including data reduction, data presentation, and conclusion, with the validity of the data verified using triangulation. It could be concluded that the fishing community on the coast of Teluk Penyu beach Cilacap Regency still maintains the tradition of sea alms as a manifestation of gratitude for the fish caught and requests prayers for the safety and abundance of fish caught the following year.","PeriodicalId":20848,"journal":{"name":"RA JOURNAL OF APPLIED RESEARCH","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78600724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deployment of IoT Sensors in the Revolution of Agriculture 物联网传感器在农业革命中的部署

RA JOURNAL OF APPLIED RESEARCH Pub Date : 2023-06-06 DOI: 10.47191/rajar/v9i6.01

Ka Hui Chai, Mohammad Malek Faizal Azizi, Sohana Romeli, H. Y. Lau

引用次数: 0

Determination of Hope Food Pattern Score (PPH) Score Based On the Study of Finished Food Components 基于成品食品成分研究的PPH评分确定

RA JOURNAL OF APPLIED RESEARCH Pub Date : 2023-05-31 DOI: 10.47191/rajar/v9i5.07

A. Hodijat

{"title":"Determination of Hope Food Pattern Score (PPH) Score Based On the Study of Finished Food Components","authors":"A. Hodijat","doi":"10.47191/rajar/v9i5.07","DOIUrl":"https://doi.org/10.47191/rajar/v9i5.07","url":null,"abstract":"Research has been conducted on the determination of the Hope Food Pattern Score (PPH) based on the study of finished food components. Finished foods are processed foods, traditional foods, culinary foods, which can be consumed immediately, without the need to reprocess them. Finished food is considered important for the determination of the PPH score targeted by the national food security agency, which has a PPH score of 92.5. This was stated by the Government through the Ministry of Agriculture in 2019, targeting nationally the score for PPH food diversification based on local resources to reach 92.5. The target of achieving a PPH score of 92.5 is difficult to achieve because in reality the 2019 SUSENAS data does not include the value of finished food energy into the PPH food group component, even though in the calculation, the finished food component is very influential on the results of calculating PPH, the energy is around 15-20% of total energy. From the calculation results, the Hope Food Pattern Score calculated based on the Average Calorie Consumption Per Capita a Day (Kcal) of West Java Province SUSENAS 2019 data plus ready-made food purchased at hawker places in food center centers, has not met the PPH score in accordance with the target, namely kupat tahu average PPH score 68.84, chicken porridge - average PPH score 80.06, fried rice has an average PPH score of 80.95, kupat sayur has an average PPH score of 83.94, and gado-gado has an average PPH score of 87.95. For this reason, with this study, it is recommended to make finished food recipes with food components whose forming raw materials are arranged then grouped according to the expectation food pattern group and simulated the value of the PPH quality score so that it has a score of around PPH 92.5.","PeriodicalId":20848,"journal":{"name":"RA JOURNAL OF APPLIED RESEARCH","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82026262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Employee Retention in Luxury Accommodation Business in Da Nang, Viet Nam 越南岘港豪华住宿行业的员工保留率

RA JOURNAL OF APPLIED RESEARCH Pub Date : 2023-05-08 DOI: 10.47191/rajar/v9i5.05

Pham Quang Tin, Tran Thi Minh Y, Thai Thi Hieu, Huynh Thi Thu Trang

引用次数: 0

Descriptive Research on the Well-Being of Young People: The Case of Hakkari, Türkiye 青年幸福感的描述性研究:以哈卡瑞为例

RA JOURNAL OF APPLIED RESEARCH Pub Date : 2023-05-06 DOI: 10.47191/rajar/v9i5.04

O. Polat, Mahire Aslan, Melike İncesu, Neslim GÜVENDEĞER DOKSAT, N. Polat, Hilal Karayazı

{"title":"Descriptive Research on the Well-Being of Young People: The Case of Hakkari, Türkiye","authors":"O. Polat, Mahire Aslan, Melike İncesu, Neslim GÜVENDEĞER DOKSAT, N. Polat, Hilal Karayazı","doi":"10.47191/rajar/v9i5.04","DOIUrl":"https://doi.org/10.47191/rajar/v9i5.04","url":null,"abstract":"Today, 'general well-being' has become an important issue for young people to lead a healthy life. There are two important areas that affect general well-being: family and school environment. The child's first socialization area is the family and the second is the school. They can be considered separately as important topics to ensure integrity in the child's health. The aim of this study is to determine the variables that impair the 'general well-being' of children. This research is descriptive. 100 high school students between the ages of 16-18 participated in the study. Study area is Hakkari province, located in the Southeast Anatolian region of Türkiye. Child abuse, neglect, corporal punishment, and early marriage/sexual abuse are reasons for concern in Hakkâri which is known to have a high representative ability in this regard, was chosen. In the findings; Factors such as high bullying experiences, using tranquilizers and sleeping pills, using tabocco product, parent’s marital status have been identified as important reasons for adolescent well being. Significant findings were obtained as the variables had a significance value of 0.001(p<000.1) using Monte Carlos simulation at the 99% confidence interval of the Fisher Freeman Halton Exact Test.","PeriodicalId":20848,"journal":{"name":"RA JOURNAL OF APPLIED RESEARCH","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82687386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0