scholarly journals Contribution Analysis of “Suroboyo Bus” in Waste Management Based on Two Form of Complete Fourier Series Estimator

2021 ◽  
Vol 7 (1) ◽  
pp. 86-95
Author(s):  
M. Fariz Fadillah Mardianto ◽  
Reynaldy Aries Ariyanto ◽  
Raka Andriawan ◽  
Devayanti Anugerahing Husada
Keyword(s):  
Fourier Series ◽  
Waste Management ◽  
Goodness Of Fit ◽  
Data Modeling ◽  
Plastic Waste ◽  
Seasonal Trend ◽  
Percentage Contribution ◽  
Contribution Analysis ◽  
The Difference

Plastic waste is a problem that almost exists in all countries. This problem arises because of the lack of facilities that can handle the plastic waste. Suroboyo Bus is an innovation for this problem because Suroboyo Bus uses plastic bottles as payment. The purpose of this research is to predict the percentage contribution of Suroboyo Bus in handling plastic waste. The Fourier series estimator performs well for data modeling with seasonal trend patterns. This paper examines two approaches to the Fourier series. The difference between the approaches is the inclusion of the phi (π) function in the model. The result shows the goodness of fit criterion model with π function are for and 0,08% for MAPE whereas the fit criterion model without π function is 100% for and 0,07% for MAPE. In conclusion, the Fourier series model without the π function is better because the Fourier series model without the π function is more satisfy the goodness of fit criteria than the Fourier series model with the π.

scholarly journals Analysis of Generation, of Household Waste and Its Potential Utilization in Darul Imarah subdistrict - Aceh Besar District

2021 ◽  
Vol 9 (E) ◽  
pp. 729-733
Author(s):  
Sofia Sofia ◽  
Kartini Kartini ◽  
Zubir Zubir
Keyword(s):  
Waste Management ◽  
Plastic Waste ◽  
Household Waste ◽  
Primary Data ◽  
Glass Waste ◽  
Cross Sectional ◽  
Study Results ◽  
Before And After ◽  
The Difference ◽  
Household Waste Management

Abstract   BACKGROUND: Darul Imarah District is one of the largest sub-districts in Aceh Besar, which is very dense and faces a waste problem. The increase in population in the Darul Imarah sub-district has resulted in waste generation.   AIM: analyzing the generation, composition of household waste and its potential use in Darul Imarah subdistrict, Aceh Besar District, Aceh Province   METHODS: This study used a cross-sectional study design by conducting an initial survey on the generationvolume and composition of waste in each house selected as a sample and continued with an experimental study. The research object is solid wastegarbage generated from daily activities in the selected sample group households in the Darul Imarah sub-district in the form of primary data from sampling, with a random sampling technique. The number of samples of 100 houses with the respondent's target is housewives. Data analysis was carried out using the T-Test difference test to compare the value before being given knowledge about household waste management after being given knowledge.   RESULTS: The study results show differences in the generation and composition of waste before and after being given knowledge about household waste management in Darul Imarah District, Kab. Aceh Besar with a significant (sig.) Of 0.000 (0.05). The total waste produced before being given knowledge about waste management was 164.6 kg. The composition of the waste consists of plastic waste (22.9 kg), wet waste (62.5 kg), dry waste (37.4 kg), and glass waste (41.8 kg). After being given knowledge about waste management, there was a reduction in the total waste produced, namely 131.8 kg. A significant reduction in the amount of waste in the volume of plastic waste (7.8 kg), wet waste (48.0 kg), dry waste (37.3 kg), and glass waste (38.8 kg). There is a difference in the volume of plastic waste in plastic waste after being given knowledge about household waste management, with the difference between the average before and after is 0.1530 and the difference is between 0.1045 - 0.2015 (95% Ci). In wet waste, there is a difference in the volume of wet waste after being given knowledge about household waste management with the difference between the before and after averages of 0.1450 and the difference between the differences is between 0.0784 - 0.2116 (95% Ci). In dry waste, there is no difference in the volume of dry waste after being given knowledge about household waste management with an average difference before and after of 0.0020, and the difference is between -, 0008 - 0.0048 (95% Ci). There is a difference in the volume of glass waste in glass waste after being given knowledge about household waste management with the difference between the before and after an average of 0.0310 and the difference between the differences between 0.0170 - 0.0450 (95% Ci). CONCLUSION:   There are differences in the generation and composition of waste before and after being given knowledge about household waste management in Darul Imarah District, Kab. Aceh Besar with a significant (sig.) of 0.000 (0.05).

Applying the Anderson-Darling Test to Suicide Clusters

Crisis ◽  
2013 ◽  
Vol 34 (6) ◽  
pp. 434-437 ◽  
Author(s):  
Donald W. MacKenzie
Keyword(s):  
Poisson Process ◽  
Goodness Of Fit ◽  
Small Samples ◽  
Massachusetts Institute Of Technology ◽  
Homogeneous Poisson Process ◽  
Cornell University ◽  
The Difference ◽  
Suicide Clusters ◽  
Institute Of Technology ◽  
Anderson Darling

Background: Suicide clusters at Cornell University and the Massachusetts Institute of Technology (MIT) prompted popular and expert speculation of suicide contagion. However, some clustering is to be expected in any random process. Aim: This work tested whether suicide clusters at these two universities differed significantly from those expected under a homogeneous Poisson process, in which suicides occur randomly and independently of one another. Method: Suicide dates were collected for MIT and Cornell for 1990–2012. The Anderson-Darling statistic was used to test the goodness-of-fit of the intervals between suicides to distribution expected under the Poisson process. Results: Suicides at MIT were consistent with the homogeneous Poisson process, while those at Cornell showed clustering inconsistent with such a process (p = .05). Conclusions: The Anderson-Darling test provides a statistically powerful means to identify suicide clustering in small samples. Practitioners can use this method to test for clustering in relevant communities. The difference in clustering behavior between the two institutions suggests that more institutions should be studied to determine the prevalence of suicide clustering in universities and its causes.

SOLID WASTE TO THEME BASED PARKS IN HIMACHAL PRADESH, INDIA: A HEALTHY, SUSTAINABLE, ECO-FRIENDLY AND SKILLED INITIATIVE FOR ENTREPRENEURS

2018 ◽  
Vol 5 (1) ◽  
Author(s):  
Dr. S. Radhakrishnan . ◽  
Mrs. Sunita Yadav ◽  
Dr. Bhagwan Singh
Keyword(s):  
Waste Management ◽  
Solid Waste ◽  
Social Entrepreneurship ◽  
Solid Waste Management ◽  
Economic Status ◽  
Well Being ◽  
Himachal Pradesh ◽  
Plastic Waste ◽  
Social Entrepreneurs ◽  
The Status

Waste is generated by various day to day human activities. Adopting improper waste handling and disposal methods can harm the well-being of public and environment. Waste management creates new opportunities for entrepreneurs in terms of social causes and it affects the economic structure and economic status of any country. One of the new approaches in waste management and income generation is Social entrepreneurship. But in Bharat i.e. India the young entrepreneurs have a dearth of consciousness towards social entrepreneurship. This paper discusses the status of solid waste management in India and Government initiatives for managing Solid Waste at Dharamshala. The main objectives of study are 1) to check awareness of people in managing solid waste at Dharamsala 2) and how to convert the plastic waste into theme based parks as skilled initiative for entrepreneurs at tourist spots in Himachal Pradesh. The paper thus explores the scope for entrepreneurs in waste management. The study reveals that Solid waste management concept attracted the attention of government around 1970s. But till now we believe in filling the waste in the ground or putting them in the dustbin. Government of India has created few acts and rules on waste management which are listed in this paper. Through this study it is revealed that people of Dharamshala welcome to the construction of themed parks made from plastic bottles. Majority of these people believe in separating waste at home and according to them conditions of waste disposal at Dharamshala are not very good. There is a positive correlation between people’s opinion of constructing theme parks and using plastic bottles in park’s construction. Study believes that the quantity of plastic waste in our country is endless which creates lot scope and opportunity to the social entrepreneurs.

On Fourier Series in Eigenfunctions of Elliptic Boundary Value Problems

2003 ◽  
Vol 10 (3) ◽  
pp. 401-410
Author(s):  
M. S. Agranovich ◽  
B. A. Amosov
Keyword(s):  
Fourier Series ◽  
Boundary Conditions ◽  
Fourier Coefficients ◽  
Elliptic Boundary ◽  
A Priori ◽  
Adjoint Problem ◽  
Elliptic Boundary Value ◽  
Right Hand ◽  
The Difference ◽  
The Right

Abstract We consider a general elliptic formally self-adjoint problem in a bounded domain with homogeneous boundary conditions under the assumption that the boundary and coefficients are infinitely smooth. The operator in 𝐿2(Ω) corresponding to this problem has an orthonormal basis {𝑢𝑙} of eigenfunctions, which are infinitely smooth in . However, the system {𝑢𝑙} is not a basis in Sobolev spaces 𝐻𝑡 (Ω) of high order. We note and discuss the following possibility: for an arbitrarily large 𝑡, for each function 𝑢 ∈ 𝐻𝑡 (Ω) one can explicitly construct a function 𝑢0 ∈ 𝐻𝑡 (Ω) such that the Fourier series of the difference 𝑢 – 𝑢0 in the functions 𝑢𝑙 converges to this difference in 𝐻𝑡 (Ω). Moreover, the function 𝑢(𝑥) is viewed as a solution of the corresponding nonhomogeneous elliptic problem and is not assumed to be known a priori; only the right-hand sides of the elliptic equation and the boundary conditions for 𝑢 are assumed to be given. These data are also sufficient for the computation of the Fourier coefficients of 𝑢 – 𝑢0. The function 𝑢0 is obtained by applying some linear operator to these right-hand sides.

Research on cooperation mechanism of marine plastic waste management based on complex network evolutionary game

Marine Policy ◽  
2021 ◽  
Vol 134 ◽  
pp. 104774
Author(s):  
Xin Xu ◽  
Yingying Hou ◽  
Changping Zhao ◽  
Lei Shi ◽  
Yu Gong
Keyword(s):  
Waste Management ◽  
Complex Network ◽  
Evolutionary Game ◽  
Plastic Waste ◽  
Cooperation Mechanism

scholarly journals PENGELOLAAN SAMPAH BERBASIS MASYARAKAT DI DESA PAKRAMAN PADANGTEGAL KECAMATAN UBUD KABUPATEN GIANYAR

2019 ◽  
Vol 13 (2) ◽  
pp. 205
Author(s):  
I Putu Juniartha ◽  
Made Antara ◽  
I Made Sudarma
Keyword(s):  
Waste Management ◽  
Public Perception ◽  
Tourism Industry ◽  
Management Process ◽  
Glass Waste ◽  
The People ◽  
The Difference ◽  
The Government ◽  
Inorganic Waste ◽  
Definition Of

The results of this study indicate: (1) Characteristics of waste in Pakraman Padangtegal Village consisted of 83.88% organic waste, 7.24% plastic waste, 4.42% paper waste, 2.22% bottle waste, glass waste at 1.28% and metal waste at 0.96%; (2) public perception in waste management in Pakraman Village, Padangtegal that most of the people in Pakraman Village, Padangtegal, already know about the definition of waste and the danger of waste if it is not managed properly. Besides that the community also knows the difference between organic and inorganic waste so that the process of sorting waste in the place provided can run well, and the community's perception of waste management services has gone well with the transportation of waste twice a day; (3) the participation of the Pakraman Padangtegal Village community in waste management has played a role in various stages of waste management, starting from the sorting, garbage collection and garbage disposal, which complies with waste regulations and maintains the quality of the environment in Padangtegal Pakraman Village. The participation of the tourism industry in the process of waste management in Pakraman Village, Padangtegal, can be seen as being involved in the process of sorting waste and paying monthly fees and waste fees. The community participation in the waste management process is to help the government to socialize the waste management process by carrying out waste collection activities every week and provide a place for the waste management process. Suggestions in this study are that waste managers will immediately add facilities and infrastructure for waste transportation and accelerate the expansion of waste management in the village of Pakraman Padangtegal.   Keywords: Waste Management System, Pakraman Village

scholarly journals Edukasi Pengelolaan Sampah Plastik Dari Rumah Tangga Menjadi Ecobrick

2021 ◽  
Vol 2 (2) ◽  
pp. 117-126
Author(s):  
Titien Yusnita ◽  
Febri Palupi Muslikhah ◽  
Machyudin Agung Harahap
Keyword(s):  
Waste Management ◽  
Management Training ◽  
Plastic Waste ◽  
Household Waste ◽  
Plastic Packaging ◽  
Training Activity ◽  
Packaging Waste ◽  
Natural Beauty ◽  
The World

The problem of waste is always an interesting thing that never runs out to find a solution. One of them is plastic packaging waste that is widely used by the community and cannot be decomposed again by nature. In line with the SDGs issue, Indonesia is the second largest country that disposes of plastic waste in the world after China. This is very dangerous for the natural beauty of Indonesia's vast seas, and destroys a very diverse ecosystem. Existing plastic waste that comes from household waste, it can be used easily and cheaply into Ecobrick. Ecobrick is a term for the result of managing plastic waste into a brick that can be used as useful items such as chairs or tables. This plastic waste management training activity was carried out for housewives in Cibitung Tengah Village, Bogor Regency to find out the use of plastic waste that can be recycled to be used as useful goods. In addition, to provide awareness of the importance of sorting household waste in order to help preserve nature. Keywords: ecobricks, management, household, plastic waste  

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