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The Change of Land Cover and Biocapacity of CO2 Gas Emission Absorption in Gresik Urban Area Ghozali, Achmad; Nurrahman, Fery Irfan; Santoso, Eko Budi
SPECTA Journal of Technology Vol 1 No 3 (2017): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v1i3.81

Gresik urban area is dominated by industrial, housing, trade and services activities. The growth of activities contributes to the land use change from green open spaces into built-up areas. The impact of land use change influence the level of air pollution and CO2 gas emission in Gresik urban area. The previous study briefly shows that this urban area produces 50.37% of the total CO2 gas emissions. The production of CO2 gas emissions should be controlled to reduce the impact of climate change in urban areas such as increasing urban temperature, hydrological cycle anomaly, drought, land degradation and other social and environmental issues. The green open space can recycle the CO2 gas emissions and can increase the absorption capacity of the CO2 gas emissions (bio-capacity). The land cover change for built-up area potentially reduces the absorption of CO2 gas emissions in Gresik urban area. Therefore the identification of the land cover change on CO2 emission absorption becomes an objective of this study. The preliminary study can formulate the strategic steps in the development of Gresik urban area that supports urban greenery and adaptive effort to respond the climate change. The study is conducted in two steps. The first step is to analysis the land cover change based on the Landsat satellite imagery analysis. The second step is to measure the dynamic change of the region's ability(bio-capacity) to absorb CO2 emissions by using ecological footprint analysis. The results show that Gresik urban area has a high development of developed land to the North area, Manyar Sub District. The growth of the developed land is more converting the fishpond land. The green areas in this regiontend to be influenced by farming activities which also convert into fishpond land. Bio-capacity of CO2 gas emission absorption increases from 2003 of 3.548 gha to 5.656 gha but the comparison between bio-capacity of CO2 gas emission absorption and developed land shows the declining tendency in each year. In 2003, the comparison score is 1.59 gha/ha of developed land. In 2014, the score is declining into 1.48 gha/ha or developed land.

The Development of Space Surveillance Settlement Concept in Pesantren Gadingmangu Perak Jombang Kurniadi, Kurniadi; Tontowi, Arif Jauhar; Wahyudi, Eko
SPECTA Journal of Technology Vol 1 No 3 (2017): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v1i3.83

The existence of Gadingmangu Pesantren in the middle of the global can become one of the interesting object to study, considering that this pesantren is improved of education area. Since the beginning of this pesantren, they have lived in harmony with the community. If observed, there is a strong will to protect traditional culture in the middle of the global culture this day.There are three problem which considered in this research. First is to see how the interaction process between the pesantren and the surrounding societies, and which space and environment setting have a function as media for social interaction between the pesantren and the neighbourhood. Second, how is the attitude and behavior of the community about the existence of Gadingmangu Pesantren settlement. The aims of this study is to see cultural values of pesantren which used in the settlement.Methodology used is field research to study physical and non physical aspect intensively. Area of architecture, environment psychology, and sociology, covers settlement and cultural values of pesantren at Gadingmangu. The research results is to find the concept of space surveillance settlement can be considered by physical aspects. Physically, there is a setting which reflect strong interaction between the pesantren Gadingmangu and the settlement nearly.

Pengetahuan, Persepsi dan Sikap Generasi Muda Tentang Perubahan Iklim dan Pengaruhnya Terhadap Niat Perilaku Pro-Lingkungan Harmuningsih, Dian; Saleky, Saul Ronald Jacob
SPECTA Journal of Technology Vol 1 No 3 (2017): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v1i3.84

Climate change continues to occur and have an impact for the survival of mankind. Climate change is not only a natural phenomenon, but also includes contributions from the behavior of the human. Hence need for awareness and goodwill of all parties, especially the young generation, to reduce the impact of climate change. This study aimed to analyze the influence of factors of knowledge, perception and attitude towards pro-environmental behavior intention of the young generation. By using multiple regression analysis, the results of this study show that the factor of knowledge, perceptions and attitudes about climate change have a positive influence and significant to pro-environmental behavior intention of the young generation. Furthermore, of these factors, the perceptions of the climate change are factors that have a more dominant influence on the intention proenvironmental behavior of the young generation. Thus, in order to further grow and develop the intention of young people to behave in a pro-environment, for they need to be given opportunities and greater access to resources and information channels to increase their knowledge related to environmental strategic issues, especially climate change and its impacts, so with the knowledge that will shape their perceptions better on climate change and, in turn, will form a more empathetic attitude. For that, the one way can be used is to empower organizations where they are working as a means to increase knowledge, shape perceptions and attitudes and arouse their intentions to behave pro-environment, through the activity of an organized, planned and organized.

Pengaruh Perubahan Parameter Fisik-Kimia terhadap Aktivitas Mikroorganisme selama Proses Pengomposan Sampah Organik Kantin Banaget, Cut Keumala; Kristanto, Gabriel S. Boedi Andari; Danumihardja, Irma Gusniani
SPECTA Journal of Technology Vol 1 No 3 (2017): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v1i3.87

Pengolahan sampah sisa makanan perlu menjadi prioritas karena jumlahnya yang besar serta sifatnya yang mudah membusuk dan memicu kehadiran hewan pembawa penyakit seperti tikus.Salah satu teknik pengolahannya adalah pengomposan, yaitu proses degradasi sampah organik oleh mikroorganisme menjadi material sejenis humus yang dapat dimanfaatkan. Tujuan penelitian ini adalah untuk menganalisis faktor-faktor (meliputi parameter fisik-kimia) yang mempengaruhi proses pengomposan, serta menganalisis hubungan dan pengaruh faktor tersebut terhadap aktivitas mikroorganisme selama proses pengomposan berlangsung. Analisis statistik dalam penelitian ini meliputi analisis faktor, korelasi, dan multivariabel. Berdasarkan analisis faktor yang dilakukan,terbentuk 2 faktor baru yang mempengaruhi proses pengomposan, yaitu faktor 1 dinamakan parameter yang menunjukkan hasil dari proses pengomposan, terdiri dari konduktivitas, salinitas, dan kadar air; dan faktor 2 dinamakan parameter yang mendukung proses pengomposan, terdiri dari rasio C/N, kadar karbon, pH, dan kadar nitrogen. Hasil analisis korelasi menunjukkan kadar air, rasio C/N, kadar karbon, pH, kadar nitrogen memiliki pengaruh terhadap aktivitas mikroorganisme. Berdasarkan analisis multivariabel, komposter 2 diperkirakan memiliki model regresi pengaruh faktor pengomposan terhadap aktivitas mikroorganisme yang terbaik. Sedangkan dilihat dari penurunan kadar karbonnya, komposter 1 memiliki konstanta laju pengomposan dan laju dekomposisiterbesar dibandingkan dua komposter lainnya, yaitu sebesar 0,0006 dan 0,0224%/hari.

Kendali Optimal Model Diversifikasi Beras dan Non-beras dengan Target Akhir Konsumsi Dewanti, Retno Wahyu; Subchan, Subchan
SPECTA Journal of Technology Vol 1 No 3 (2017): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v1i3.88

Dalam Peraturan Presiden (Perpres) No. 22 Tahun 2009 disebutkan bahwa dua sasaran dari upaya diversifikasi pangan masyarakat Indonesia meliputi perbaikan pola konsumsi pangan yang beragam, bergizi, dan seimbang serta mengurangi konsumsi beras per kapita sebesar 1,5% per tahun. Upaya tersebut dilakukanuntuk menghindari ketergantungan pada satu jenis pangan pokok yaitu beras. Disisi lain ketersediaan pangan lokal merupakan alternatif terbaik sebagai pengganti beras karena lebih mudah dijangkau secara sik maupun ekonomi, seperti jagung, singkong, ubi jalar, sagu, gembili, yang biasa dikenal dengan istilah non-beras. Pada jurnal ini dibahas permasalahan kendali optimal model diversifikasi beras dan non-beras dengan penerapan target akhir konsumsi. Target akhir konsumsi adalah tingkat konsumsi beras dan non-beras yang diharapkan oleh pemerintah pada tahun yang sudah ditentukan. Model dinamik yang digunakan untuk mengintepretasikan adalah Model Lotka-Volterra. Persentase tingkat konsumsi beras dan non-beras dijadikan sebagai variabel pengendali yang bertujuan untuk meminimumkan biaya. Metode penyelesaian yang digunakan adalah Prinsip Minimum Pontryagin. Berdasarkan hasil simulasi ditunjukkan bahwa konsumsi beras menurun secara optimal sedangkan konsumsi non-beras meningkat, sehingga biaya yang dikeluarkan minimum.

PENGARUH JARAK AIR GAP PADA PERFOMANCE MOTOR BRUSHLESS DIRECT CURRENT JENIS EXTERIOR ROTOR Huda, Thorikul; Indriani, Nita; Efrizal Gozali, M
SPECTA Journal of Technology Vol 1 No 3 (2017): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar

Electric motors today have become an important part in technological developments. One type of electric motor that has been and continues to be developed at this time is brushless direct current (BLDC). BLDC is generally applied as an actuator on electric vehicles. The development of electric vehicles make BLDC motor more varied. This research analize the influence of air gap distance on the design performance of BLDC motor with exterior rotor type. The BLDC motor has rated voltage 48 V and input current 23A.

PENGARUH JARAK AIR GAP PADA PERFOMANCE MOTOR BRUSHLESS DIRECT CURRENT JENIS EXTERIOR ROTOR Huda, Thorikul; Indriani, Nita; Efrizal Gozali, M
SPECTA Journal of Technology Vol 1 No 3 (2017): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar

Electric motors today have become an important part in technological developments. One type of electric motor that has been and continues to be developed at this time is brushless direct current (BLDC). BLDC is generally applied as an actuator on electric vehicles. The development of electric vehicles make BLDC motor more varied. This research analize the influence of air gap distance on the design performance of BLDC motor with exterior rotor type. The BLDC motor has rated voltage 48 V and input current 23A.

PERANCANGAN SISTEM PENGEREMAN MOBIL MENGGUNAKAN MAMDANI FUZZY LOGIC CONTROL Rizianiza, Illa; Djafar, Alfian
SPECTA Journal of Technology Vol 1 No 3 (2017): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar

Increase in the number of vehicles, especially cars can increase the chances of accidents. Accidents happen because caused by several factors, including human error, environmental and technical vehicle. Human error factor caused by the driver of the vehicle less focus so less appropriate in decision making at the time of driving. Therefore, vehicles that have technology that can reduce the occurrence of accidents. One technology of a potential car vehicle to be developed in order to reduce the number of accidents is the technology of the brakingsystem. Car braking system is the most important safety system that it has. This paper provides an automatic car braking system using Mamdani Fuzzy Logic Control. This car braking system consist of two inputs and one output. Inputs are car position and car velocity. Car position represents the distance of the car from the obstacle detected and velocity represents the velocity of the car towards the obstacle. This output is brake that represents the car force to stop the car. The inputs use five membership funtions and the output use three membership functions. The car braking system designed uses twenty five rules. Performance analysis of the braking system is carried out on the braking system's ability to avoid obstacles. The result is the vehicle can brake at a distance 30m vehicle from the obstacle. The vehicle braking system began to brake the vehicle at 2.5 s with 9263 N up to 3.7 s.

PERANCANGAN SISTEM PENGEREMAN MOBIL MENGGUNAKAN MAMDANI FUZZY LOGIC CONTROL Rizianiza, Illa; Djafar, Alfian
SPECTA Journal of Technology Vol 1 No 3 (2017): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar

Increase in the number of vehicles, especially cars can increase the chances of accidents. Accidents happen because caused by several factors, including human error, environmental and technical vehicle. Human error factor caused by the driver of the vehicle less focus so less appropriate in decision making at the time of driving. Therefore, vehicles that have technology that can reduce the occurrence of accidents. One technology of a potential car vehicle to be developed in order to reduce the number of accidents is the technology of the brakingsystem. Car braking system is the most important safety system that it has. This paper provides an automatic car braking system using Mamdani Fuzzy Logic Control. This car braking system consist of two inputs and one output. Inputs are car position and car velocity. Car position represents the distance of the car from the obstacle detected and velocity represents the velocity of the car towards the obstacle. This output is brake that represents the car force to stop the car. The inputs use five membership funtions and the output use three membership functions. The car braking system designed uses twenty five rules. Performance analysis of the braking system is carried out on the braking system's ability to avoid obstacles. The result is the vehicle can brake at a distance 30m vehicle from the obstacle. The vehicle braking system began to brake the vehicle at 2.5 s with 9263 N up to 3.7 s.

STUDI DEFLEKSI PADA STRUKTUR BATANG SEBAGAI DASAR PEMILIHAN FRAME KURSI RODA ANAK Djafar, Alfian; Rizianiza, Illa
SPECTA Journal of Technology Vol 1 No 3 (2017): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar

Penelitian ini dilandasi oleh adanya penggunaan Polyvinyl Chloride (PVC) sebagai material yang digunakan dalam pembuatan frame kursi roda. Kursi roda ini dikhususkan pada anak-anak, dimana berat badan anak dan berat robot kursi roda tidak melebihi 23 kg. Pipa PVC yang digunakan adalah jenis AW, schedule 40, dan schedule 80. Diameter pipa dibatasi pada diameter ½ in,3/4 in,1 in,1 1/4 in untuk masing-masing jenis pipa PVC. Tujuan penelitian ini adalah menentukan dimensi dari pipa PVC yang aman digunakan pada bobot yang telah ditentukan, berdasarkan analisis defleksi. Batas defleksi yang diizinkan untuk penggunaan pipa ini sebesar 0.938mm. Metode pendekatan teoritis dan menggunakan program simulasi LISA digunakan pada penelitian ini. Hasil penelitian menunjukkan bahwa dimensi pipa yang aman digunakan adalah pipa PVC jenis schedule 40 dan schedule 80. Defleksi PVC 1 1/4 in schedule 40 berdasarkan perhitungan teoritis sebesar 0.7614 mm dan 0.7610 mm berdasarkan simulasi LISA. Sedangkan PVC 1 1/4 in schedule 80 memiliki defleksi sebesar 0,6131 mmberdasarkan perhitungan teoritis, dan 0,6128 mm didapatkan dari hasil simulasi LISA. Dari penelitian ini, dipilih Pipa PVC 1 1/4 in schedule 40 sebagai material dalam perancangan dan pembuatan frame kursi roda.

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
Syamsul Mujahidin

Contact Email
syamsul@lecturer.itk.ac.id

Phone
+6285931379488

Journal Mail Official
spectajournal@itk.ac.id

Editorial Address
Ruangan LPPM Gedung A lantai 2, Kampus ITK, Jl Soekarno Hatta KM 15, Karang Joang, Balikpapan, Balikpapan Utara, KALTIM

Location
Kota balikpapan,

Kalimantan timur

INDONESIA

Abstract

Abstract

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Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Syamsul Mujahidin

Contact Email syamsul@lecturer.itk.ac.id

Phone +6285931379488

Journal Mail Official spectajournal@itk.ac.id

Editorial Address Ruangan LPPM Gedung A lantai 2, Kampus ITK, Jl Soekarno Hatta KM 15, Karang Joang, Balikpapan, Balikpapan Utara, KALTIM

Location Kota balikpapan, Kalimantan timur INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Syamsul Mujahidin

Contact Email
syamsul@lecturer.itk.ac.id

Phone
+6285931379488

Journal Mail Official
spectajournal@itk.ac.id

Editorial Address
Ruangan LPPM Gedung A lantai 2, Kampus ITK, Jl Soekarno Hatta KM 15, Karang Joang, Balikpapan, Balikpapan Utara, KALTIM

Location
Kota balikpapan,

Kalimantan timur

INDONESIA