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ALAT PENJERNIH AIR YANG DIINTEGRASIKAN DENGAN POMPA AIR TENAGA SURYA Susilawati; Nasution, Tulus Ikhsan; MN, Nasruddin
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 3 No. 2 (2018): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Mesjid Sunnah Alhidayah dan Yayasan Al Mujahidah Sumatera Utara merupakan salah satu rumah ibadah dan sekolah yang terletak di kelurahan Sari Rejo Kecamatan Medan Polonia yang belum mendapatkan pasokan air bersih dari PDAM Tirtanadi. Masjid Sunnah Alhidayah dan sekolah yayasan Al Mujahidah menggunakan sumur bor untuk mendapatkan pasokan air yang digunakan untuk kebutuhan sehari hari. Masalahnya kondisi air yang diperoleh dari sumur bor berwarna kekuningan, keruh, dan berbau. Warna air sumur yang kekuningan, keruh dan berbau ini menjadi tak layak untuk digunakan apalagi untuk dikonsumsi, tetapi tetap saja warga menggunakan air sumur tersebut untuk keperluan ibadah (mandi dan berwudhu) tanpa melalui proses pengolahan atau penyaringan sama sekali. Implementasi ilmu pengetahuan teknologi di Mesjid Sunnah Alhidayah dan Yayasan Al Mujahidah yang akan dilakukan berupa teknologi alat penjernih air yang diintegrasikan dengan pompa air tenaga surya. alat penjernih air yang diintegrasikan dengan pompa air tenaga surya memiliki keunggulan tidak menggunakan bahan kimia karena hanya menggunakan filter berbasis karbon aktif, pasir zeolit, dan pasir manganese greensand, mengontrol air masuk dan air keluar secara otomatis, filter mudah dibersihkan, menggunakan tenaga surya sehingga ramah lingkungan dan menghemat biaya pembayaran listrik PLN. Implementasi ini dilakukan untuk mengatasi masalah yang sedang dihadapi oleh masyarakat di Kelurahan Sari Rejo umumnya dan mesjid Sunnah Alhidayah serta Yayasan Al Mujahidah khususnya dalam proses penjernihan air, sehingga air dari sumur bor menjadi layak untuk digunakan bahkan untuk dikonsumsi.

Improvement on Alcohol Breath-Analyzer Ethanol Biosensor based on Roselle-Chitosan Blend Ahmed M. S. Eljali; Irwana Nainggolan; Shahrir Hashim; Tulus Ikhsan Nasution
International Journal of Electrical and Computer Engineering (IJECE) Vol 7, No 3: June 2017
Publisher : Institute of Advanced Engineering and Science

This paper presents a study on designing of a breath-analyzer ethanol biosensor through vaporization technology. A roselle extract and chitosan smart gel were used to fabricate the bio-sensing material. Sol-gel electrochemical deposition method was used to coat a thin film of the sensing material blend on patterned golden surface printed circuit board. Differentiation, response time and repeatability properties were studied by exposing 100ppm, 50ppm and 25ppm of ethanol vapor to the breath-analyzer. The accuracy of the breath-analyzer was tested by using I-V electrical testing. The analyzed data demonstrated that the breath-analyzer ethanol biosensor is capable of identifying the concentration of ethanol vapor at room temperature successfully, which can be used as analyzer of alcohol concentration when the sensor exposed to the exhale breath. The roselle-chitosan film sensors have shown the characteristic of a reliable sensor i.e. good sensitivity, selective, repeatable, able to recover and stable.

Electronic Identification System of Hazardous Volatile Organic Compound Gases using Roselle-Chitosan Blend Ahmed M.S. Eljali; Irwana Nainggolan; Tulus Ikhsan Nasution; Shahrir Hashim
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 2: EECSI 2015
Publisher : IAES Indonesia Section

This paper presents a study on design and fabrication of an electronic identification system (EIS) for some volatile organic compounds i.e. toluene, ethanol and methanol through vaporization technology. A new sensing material of roselle-chitosan blending thin film based on electrochemical deposition method was used to guarantee the differentiation and the accuracy of the identification system. Chitosan smart gel with 2% acetic acid was prepared and then roselle extract was blended to enhance the sensing properties of the chitosan film. Differentiation ability was studied by exposing 50ppm of toluene, ethanol and methanol vapor to the sensing material. The accuracy of the identification system was tested by IV electrical testing. The analyzed data demonstrated that the electronic identification system is capable of identifying different volatile organic compound gases at room temperature successfully. The roselle-chitosan film sensors showed the characteristic of a reliable sensor i.e. good sensitivity, selectivity, repeatability, recovery and stable.

PENGEMBANGAN UNIT PENGELOLAAN LIMBAH SISTEM MANAJEMEN LIMBAH (SIMALIM) DENGAN SMART URBAN FARMING DALAM MENGELOLA LIMBAH ORGANIK DI KAMPUS USU M. Ichwan; Ameilia Zuliyanti Siregar; Eri Yusni; Tulus Ikhsan Nasution
ABDIMAS UNWAHAS Vol 6, No 2 (2021)
Publisher : Universitas Wahid Hasyim Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/abd.v6i2.5686

Universitas Sumatera Utara memiliki civitas akademika yang berkontribusi menghasilkan limbah organik yang cukup signifikan. Mendukung Green Campus mencapai peringkat di UI Greenmetric, perlu dikembangkan Unit Pengelolaan Limbah Sistem Manajemen (Simalim) Dengan Smart Urban Farming yang baik dan terpadu. UPL Simalim dibentuk bertujuan sebagai wahana pendidikan. penelitian bagi masyarakat, mahasiswa dan dosen. Disamping itu, menghasilkan produk yang bermanfaat dengan mensinergikan pemanfaatan larva Hermetia illucens/Black Soldier Fly (BSF), ekoenzim, aquaponik dan smart urban farming dengan mengelola limbah organik dari kantin dan perumahan warga di sekitar USU. Pengabdian ini dilaksanakan sejak bulan Agustus 2020 sampai dengan Desember 2020 pada Tahap pertama, berlokasi di Tempat Pembuangan Sampah (TPS) USU di Jl. Tri Dharma dan roof top garden dari UPT Lab Terpadu USU, melibatkan secara partisipatif dan melatih para mahasiswa sebagai duta ecocampus dan juga tim UI Green metric USU. Pengelolaan sampah organik dilakukan dengan rearing BSF pada sampah yang akan diuraikan. Manakala sistem akuaponik, dibudidayakan ikan gabus, nila dan lele serta sayuran organik. Produk ini dapat dijadikan komoditas kampus yang merupakan income generating. Diharapkan UPL Simalim dapat menjadi model bagi pengelolaan sampah organik tepat guna di Perguruan Tinggi yang ada di Indonesia.Kata kunci: Limbah organik; larva BSF, ekoenzim, aquaponik, smart urban farming format.

Manufacture of Non-Contact Hand Washing Equipment as a Prevention of Transmission of the SARS Cov-2 Virus at the Al-Buchari Mosque, Johor Building Village, Medan Johor District, Medan City Azhari; Tulus Ikhsan Nasution; Rahmadhani Banurea; Zikri Noer; Sudiati; Lukman Hakim; M.Rifai Piliang
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 6 No. 2 (2021): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Society of Lingkungan VIII Kelurahan Gedung Johor, Medan City utilizes the Al-Buchari Mosque as a means of worshiping and gaining knowledge for the Muslim community. However, Al-Buchari Mosque still uses water containers to wash the hands of its worshipers in order to prevent the transmission of the Sars-Cov 2 virus, which is an increasingly worrying situation. Medan Johor District is a red zone area in terms of the spread of the Sars-Cov 2 Virus. Based on data from the Corona Pandemic Prevention Task Force, Medan City has had more than 1000 positive cases of Covid-19 in the city of Medan. This is due to the lack of public awareness of the importance of washing hands, maintaining distance, and wearing masks. One of the effective ways to prevent the transmission of the Sars Cov-2 virus is to create a sink that does not require us to hold it but control it with our feet. So that the spread of the virus through hand media can be avoided. With this non-contact hand washing, people who worship at the Al-Buchari Mosque will minimize the transmission of the Sars Cov-2 virus through hand media.

Characteristics of Extreme Rainfall Events in North Sumatra Sahata Pakpahan; Tulus Ikhsan Nasution; Marzuki Sinambela
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 11, No 2: April 2023
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-ps.v11i2.7755

Extreme rain is an event that has an impact on various sectors of life. Therefore, this study aims to determine the spatial and temporal characteristics of extreme rain events in North Sumatra Province in the time period between 1991-2020. In accordance with the WMO recommended rain index, the frequency and intensity of rain were calculated using 50 rain stations spread across North Sumatra where the data had passed the quality control test for empty data. Spatial patterns were analyzed by mapping the climatological mean of the indices then for trend patterns were tested using the Mann-Kendal non-parametric test. The results showed that extreme rainfall events with low frequency and intensity occurred on the east coast while high frequency and intensity occurred in mountainous areas. Based on the temporal trend test, it shows that in general an insignificant trend dominates in this area. Significant and consistently increasing trends are only found at several points, namely in the districts of Deli Serdang (5 station), Batu Bara (1 station), Humbang Hasundutan (1 station), Langkat (2 station), Labuhan Batu Utara (1 station), Medan (1 station), Pematang Siantar (1 station) and Serdang Bedagai (1 station). Meanwhile, a significant and consistently decreasing trend was found in Asahan Regency (1 station), Simalungun (2 station), North Tapanuli (1 station), and North Labuhan Batu (1 station).

Analysis of Interaction Between Atmosphere and Sea Using The Delft3D Hydrodynamics Model for Mapping Coastal Flood Zone at Belawan Port and Coastal Rizki Fadhillah Pratama Putra; Tulus Ikhsan Nasution; Syahrul Humaidi; Yahya Darmawan
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 11, No 2: April 2023
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-ps.v11i2.7773

Belawan port and coastal areas were also not spared from the impact of the tidal flood. This study aims to determine the performance of the Delft3D hydrodynamic model in simulating sea level and waves in tidal floods at Belawan port and coastal area. Final operational global analysis data, MSLP data from NOAA/NCEP, and tidal data from ECMWF were used to run the Delft3D model. The model output was verified by using tide gauge observation data from BIG (Geospatial Information Agency). This research resulted in a mapping of areas affected by tidal flooding in the Belawan port and coastal area by analyzing the interaction between atmosphere, consisting of wind speed and direction parameters and sea parameters in the form of significant wave height. Based on the results of the Delft3D verification with observation data, the average error value is 23.5 cm and the coefficient of correlation is 0.93. This shows that the Delft3D model is quite good at simulating tidal flood heights in the Belawan port and coastal area. Based on atmospheric analysis, it does not really affect the increasing wave height. The influence is given by significant sea wave height, which can increase the height of tidal floods.

Analysis Of Spearman Rank Correlation & Linear Regression Of Atmospheric Stability And Cloud Tops Temperature Of Himawari-8 IR Satellite Images (Case Study Of Hail On May 22, 2022) Lestari Irene Purba; Syahrul Humaidi; Yahya Darmawan; Zahedi Zahedi; Tulus Ikhsan Nasution
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol 11, No 2: April 2023
Publisher : IKIP Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-ps.v11i2.7818

This research is based on cases of hail that caused flooding in Binjai City on May 22, 2022. This study aims to see the correlation and regression of the Atmospheric Stability index value on cloud top temperature data from the Himawari-8 satellite imagery. So that the ERA-5 reanalysis data can be used to obtain cloud top temperatures in predicting hail events. The indices used in this study are CAPE, KI and TTI. The data used is located in Binjai City with correlation testing from 00UTC – 24UTC on May 22, 2022. Supported data is used in the form of sea surface temperature and wind conditions and looks at the causes of hail at the research location. The method used is Spearman's rank correlation with the results obtained in the form of a correlation value at the K index of -0.651, a correlation of the TT index of -0.563, and a correlation of the CAPE index of -0.348. The simple linear regression results also show a negative gradient line. This shows that the increase in the value of the stability index is in line with the decrease in cloud top temperature. So that the stability index data can be used as a benchmark in estimating cloud top temperatures in the case of convective cloud formation which causes hail.

Environtmentally healthy sleep light Tulus Ikhsan Nasution; Mahyudin K.M Nasution; Susilawati -; Dara Azdena
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 2 (2019): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Healthy sleep lights that will be proposed for community service are the results of research in which the use of LED lights (Light Emitting Diode) is activated with a maximum power of 3 Watts, so that the power consumed is quite low. This healthy sleep lamp also has some uniqueness such as turning on and off with sound by utilizing applications installed on smartphones. This voice control application can also be used to vary the color of the light. This lamp can be turned on and off by touching the light nest by using a sensor system and also the color and brightness of the lamp can be adjusted using the RGB control application on the smartphone. Intensity test results for LED lights 112 - 996 (Weber / m2). The standard intensity limit for healthy bulbs based on H. Steve, H. Gaube and J. Winterhager is 3,000 (Weber / m2), so that meeting the intensity standard is an LED lamp. Our long-term goal is to develop research results into products that have economic value, facilitate students to develop creativity and innovation and create jobs by partnering with partners.

ALAT PENJERNIH AIR YANG DIINTEGRASIKAN DENGAN POMPA AIR TENAGA SURYA Susilawati; Tulus Ikhsan Nasution; Nasruddin MN
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 3 No. 2 (2018): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Mesjid Sunnah Alhidayah dan Yayasan Al Mujahidah Sumatera Utara merupakan salah satu rumah ibadah dan sekolah yang terletak di kelurahan Sari Rejo Kecamatan Medan Polonia yang belum mendapatkan pasokan air bersih dari PDAM Tirtanadi. Masjid Sunnah Alhidayah dan sekolah yayasan Al Mujahidah menggunakan sumur bor untuk mendapatkan pasokan air yang digunakan untuk kebutuhan sehari hari. Masalahnya kondisi air yang diperoleh dari sumur bor berwarna kekuningan, keruh, dan berbau. Warna air sumur yang kekuningan, keruh dan berbau ini menjadi tak layak untuk digunakan apalagi untuk dikonsumsi, tetapi tetap saja warga menggunakan air sumur tersebut untuk keperluan ibadah (mandi dan berwudhu) tanpa melalui proses pengolahan atau penyaringan sama sekali. Implementasi ilmu pengetahuan teknologi di Mesjid Sunnah Alhidayah dan Yayasan Al Mujahidah yang akan dilakukan berupa teknologi alat penjernih air yang diintegrasikan dengan pompa air tenaga surya. alat penjernih air yang diintegrasikan dengan pompa air tenaga surya memiliki keunggulan tidak menggunakan bahan kimia karena hanya menggunakan filter berbasis karbon aktif, pasir zeolit, dan pasir manganese greensand, mengontrol air masuk dan air keluar secara otomatis, filter mudah dibersihkan, menggunakan tenaga surya sehingga ramah lingkungan dan menghemat biaya pembayaran listrik PLN. Implementasi ini dilakukan untuk mengatasi masalah yang sedang dihadapi oleh masyarakat di Kelurahan Sari Rejo umumnya dan mesjid Sunnah Alhidayah serta Yayasan Al Mujahidah khususnya dalam proses penjernihan air, sehingga air dari sumur bor menjadi layak untuk digunakan bahkan untuk dikonsumsi.

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