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PENGARUH PENAMBAHAN LATEKS DAN SERAT RAMBUT TERHADAP BETON Hendrik Hendrik
Jurnal Teknik Sipil USU Vol 7, No 1 (2018): Jurnal Teknik Sipil USU Volume 7, No.1, Tahun 2018
Publisher : Jurnal Teknik Sipil USU

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Abstract

Beton terbentuk dari campuran agregat halus, agregat kasar, semen dan air dengan perbandingan tertentu. beton merupakan suatu bahan konstruksi yang banyak digunakan pada pekerjaan struktur bangunan di Indonesia karena banyak keuntungan yang diberikan diantaranya adalah bahan-bahan pembentuknya mudah diperoleh, mudah dibentuk, maupun memikul beban yang berat, tahan terhadap temperatur tinggi, biaya peliharaan kecil. Selain kekuatan, berat jenis beton juga mempengaruhi suatu konstruksi. Berat jenis yang besar maka dimensi elemen struktur akan besar pula sehingga sangat berpengaruh terhadap bebabn bangunan secara keseluruhan. Berat ini akan mengecil / ringan apabila dimensinya kecil. Hal ini hanya akan tercapai bila beton tersebut mempunyai kekuatan yang tinggi / bermuatan tinggi. Tetapi beton yang bermutu tinggi bersifat lebih getas / britle. Oleh karena itu perlu dilakukan penelitian untuk mendapatkan beton yang bermutu tinggi tetapi bersifat daktail (2). Dengan suatu perancangan khusus, kuat tekan dan kuat tarik beton ini dapat ditingkatkan sehingga mampu menahan  tekanan dan tegangan tarik tanpa mengalami retakan. Salah satu cara adalah dengan penambahan bahan seperti zat kimia ataupun serat-serat pada adukan beton sehingga retak-retak yang mungkin terjadi pada beton dapat ditahan oleh serat-serat tambahan ini (3). Berbagai jenis bahan penambah untuk kekuatan beton yang dipakai untuk memperbaiki sifat beton adalah fly ash, cangkang kelapa sawit, fiber baja, fiber plastik, dan lain-lain. Di Indonesia, konsep pemakaian fiber baja pada adukan beton untuk struktur bangunan teknik sipil belum banyak dikenal dan belum dipakai dalam praktek. Salah satu sebabnya adalah tidak tersedianya fiber baja di Indonesia dan harganya mahal (3). Pada penelitian kali ini, penulis akan menggunakan lateks dan serat rambut. Lateks yang digunakan adalah lateks cair yang berasal dari pohon karet yang tidak mencemari lingkungan sedangkan serat rambut yang dipakai adalah rambut dari hasil sisa pemotongan rambut dari salon.
ANALISIS USAHA DAN POTENSI PENGEMBANGAN KERAMBA JARING APUNG (KJA) DI WADUK PLTA KOTO PANJANG KABUPATEN KAMPAR PROVINSI RIAU Hendrik Hendrik
Berkala Perikanan Terubuk Vol 40, No 1 (2012): Februari 2012
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (642.633 KB) | DOI: 10.31258/terubuk.40.1.%p

Abstract

This research aims to know KJA effort feasibility and development potency atPLTA Koto Panjang. Result of this research showed if KJA'S effort with 10reasonable bags to be developed by investments as big as Rp 118.625.000,- withonce time harvests as big as Rp 24.524.000,in a year is done crop thrice.Development potency KJA stills outspread base environmental advocate energywith level harnessed new accumulating basin 5,1% by total KJA now 1.000 bag.about problem on a long term is accessibility stock down that until now still iswreaked from pasaman sumatra smolders and be made its accumulatings basinspatial manner for developmental KJA and another activity.
ANALYSIS OF GOLDFISH MARKETING IN PANGURURAN SUB-DISTRICT SAMOSIR REGENCY NORTH SUMATRA PROVINCE Richard Halomoan Nainggolan; Hendrik Hendrik; Tince Sofyani
Berkala Perikanan Terubuk Vol 50, No 1 (2022): Februari 2022
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/terubuk.50.1.1417-1424

Abstract

Research on the marketing of Goldfish in Pangururan Sub-district Samosir Regency was carried out in April 2021. This research aimed to (1)analyzes the cost, Goldfish marketing advantage; (2) calculated marketing margin and efficiency of Goldfish marketing in Pangururan District North Sumatra Province. The method used in this research is the survey method by directed observation to the field. Respondents in this research were cultivators of as many as 22 people, collecting trades as many as 2 people, while the retailers is 10 people.The results of this research are known to collectors who buy Goldfish as much as 400 kg and sell to retailers as much as 40 kg per retailer. Average marketing cost incurred by the merchant by collecting trades amounting to IDR 453,33/kg and the average marketing costs incurred by retailers amounted to IDR 560/kg. For the marketing profit of collectors, the average amount is IDR 3.546,67/kg and for the profit of retailers, the average amount is IDR 1.440/kg. The marketing margin is IDR 6.000/kg and total fishermans share is 83,33%. Goldfish marketing in Pangururan District is efficient because Fishermans share bigger than 50%.
Analysis of Dumbo Catfish Culture (Clarias gariepinus) Using the Application of Biofloc System and Conventional System in Subdistrict Palas District Rumbai Pekanbaru City Riau Province Syatari Retno Purwati; Zulkarnaini Zulkarnaini; Hendrik Hendrik
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

ABSTRACT              The research was conducted in 28 April – 18 May 2017 located in Subdistrict Palas, Rumbai District, Pekanbaru City, Riau Province. This study aims to determine the amount of investment capital, knowing the ratio of income and profits and analyze the feasibility of cultivation of catfish dumbo using the application of biofloc and conventional. The method used in this research is survey method with analysis of dumbo catfish culture business using the application of biofloc and conventional technology to Katon Jaya Group Cultivators. Business analysis in this research consists of total investment, production cost and business feasibility. Total investment spent on the breeding business of Catfish Dumbo biofloc IDR 42.820.000,-/harvest and conventional total investment of IDR 41.430.000,-/harvest. Production cost incurred in the business of enlargement of Catfish Dumbo biofloc IDR 28.070.000,-/harvest and cconventional of IDR 31.338.000,-/harvest. Cultivation of Dumbo catfish farming (Clarias gariepinus) in ponds in Palas village can be said to be feasible with the value of RCR > 1 that is biofloc 1.6 and conventional 1.3 with the value of FRR > 7% ie 38% biofloc and conventional 19.5% and the value of PPC for return of capital that is biofloc 2.6 period and conventional 5.1 period. Keywords: Business Analysiss, Clarias gariepinus, Feasibility Study, Palas Subdistrict.
EFFECTIVENESS REGULATION MINISTER OF MARITIME AFFAIRS AND FISHERIES NO. 71/2016 TO FISHING GEAR FISHERMAN OF CANOE BAGAN AT BUNGUS OCEAN FISHING PORT OF WEST SUMATERA Dian Triana; Hendrik Hendrik; Hamdi Hamid
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

ABSTRACT This research is about effectiveness regulation minister of maritime affairs and fisheries at Bungus Ocean Fishing Port has been done in April 2018. The purpose of this research is to find out implementation of the effectiveness of Permen-KP No 71 of the year 2016 in PPS Bungus and knowing the problems that arise regarding the effectiviness of Permen-KP No 71 of the year 2016.The research method used is the method of the survey with the approach of a qualitative, that is conducting observations directly to the field.The determination of respondents technique be used Purposive Sampling with a total of 18 respondents.The research showed that Permen-KP no 71 of the year 2016 on the chart it’s still not effective due to lack of socialization to fishermen regarding the use of the fishing who environmentaly friendly. The application of the Permen-KP No 71 of the year 2016 in PPS Bungus there are pros and cons in the community. The problem in dealing with the application of Permen KP No 71 of the year 2016 againts the use of lights, the nets and the arrest on a chart also have an impact with the advent of fear of a fisherman when fishing, the reduced by fishermen, the number of fishermen who are unemployed, and the difficulty of fishermen to move to the arrest. Keywords: Effectiveness, MoMA&F Regulation, The arrest of the chart
ANALYSIS OF FEASIBILITY OF THYLAPHIA FISH CULTIVATION AT FLOATING NET CAGES IN TANJUNG BUNGA VILLAGE, SUB-DISTRICT PANGURURAN SAMOSIR REGENCY Rizal Damanik; Hendrik Hendrik; Kusai Kusai
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

  ABSTRACT        This research was carried out on 1 until 11 August 2018 in Tanjung Bunga Village, Pangururan District, Samosir Regency. The purpose of this study was to determine how much investment and income costs, analyze how business feasibility is reviewed based on the investment criteria of the KJA business with Scale I, namely 10 cages, Scale II 20 cages, and Scale III 30 cage bags. This study also aims to see how the sensitivity of KJA business is seen from the investment criteria          The results showed that the total investment for the KJA Scale I business was IDR. 262.798.000, Scale II was IDR. 492,450,000 and Scale III was IDR. 752,890,000. Whereas for income per year or 2 times the production period for KJA business on a scale I is IDR 163,344,000, and for scale II is IDR.380,000,000 and scale 3 is IDR. 547,400,000. Based on the results of the calculation of investment criteria obtained, the NPV value of KJA scale I business is IDR. 499.702.702 and the scale II business is IDR. 1,364,825,240 and the scale III business is IDR. 1.919.739.480 for 10 years. BCR for scale I is 1.21, and KJA scale II was 1.31, and KJA scale III was 1.34. KJA business IRR scale I is 48,5% and scale II is 50,8% and business scale III is 51,2%. (IRR> i), meaning that the IRR value is greater than the highest interest rate per year.          From the results of the calculation of sensitivity analysis within 10 years of the three types of KJA business scale, it can be concluded that the KJA business will experience a loss if there is an increase in cost (cost) of 10% and production has decreased by 10% in the fourth scenario. Where the NPV value of the three business scales is still positive, BCR is <1, and the IRR is smaller than the highest interest rate per year, then the business is better stopped if the KJA business experiences something like this. Keywords: Floating Net Investment, Investment, Business Analysis, Sensitivity Analysis.         
MULTIPLIER EFFECT OF FLOATING NET CAGE BUSINESS ON MANINJAU LAKE TO COMMUNITY ECONOMY IN NAGARI KOTO MALINTANG TANJUNG RAYA DISTRICT AGAM WEST SUMATERA PROVINCE Siti Erwina Youwikijaya; Hendrik Hendrik; Hamdi Hamid
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

ABSTRAK               This research was conducted in April 2017 in Nagari Koto Malintang, Tanjung Raya District, Agam Regency, West Sumatera Province. The purpose of this research is to identify the activity of economic activity which grow as the impact of the existence of floating net cage business and to know the multiplier effect of the existence of floating net cage business (KJA) to the economy of people living around Maninjau Lake Nagari Koto Malintang. The method of this research is quantitative method, informant is determined by Slovin formula and purposive sampling, and data is analyzed by using descriptive analysis and multiplier effect analysis.               The analysis shows that the presence of KJA's business in Kecamatan Tanjung Raya is the base sector and the presence of KJA's business in Nagari Koto Malintang has had an economic impact on the local economy. Direct economic impacts received by business unit owners with a proportion of 3.05 percent, indirect economic impacts received by local workers with a proportion of 4.64 percent and subsequent economic impacts with a proportion of 41 percent. Meanwhile, the Value of Income Multiplier Type II is 2.5. Key Word : Business, Distribution, Investment, Fish Seed, Feasible  
PENGARUH PEMBERIAN INTERFERENSI DENGAN ULTRASOUND PADA PENERAPAN HOLD RELAX TERHADAP PERUBAHAN NYERI DAN JARAK GERAK SENDI LUTUT PASIEN OSTEOARTHRITIS DI RUMAH SAKIT UMUM DAERAH SALEWANGANG MAROS Hendrik Hendrik; Suharto Suharto; Hasbiah Hasbiah
Media Fisioterapi Politeknik Kesehatan Makassar Vol 12, No 1 (2020)
Publisher : Politeknik Kesehatan Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (23.661 KB) | DOI: 10.32382/mf.v11i1.819

Abstract

Osteoarthritis merupakan penyakit gangguan musculoskeletal yang degeneratif, dimana jumlah kejadiannya cenderung meningkat seiring dengan bertambahnya usia harapan hidup penduduk. Fisioterapi merupakan salah satu faktor terpenting dalam penanganan osteoarthritis secara komprehensif.Penelitian ini bertujuan untuk membandingkan metode yang lebih efektif antara interferensi dan hold relax dengan ultrasound dan hold relax terhadap perubahan  nyeri penambahan jarak gerak sendi akibat osteoarthritis sendi lutut. Penelitian ini adalah quasy eksperimen menggunakan pretest-posttest two group design. Populasi penelitian adalah semua pasien osteoarthritis yang berkunjung di Poliklinik Fisioterapi RSUD Salewangan Maros  dari bulan Juni sampai dengan September 2013 yang berjumlah 31 orang. Sampel penelitian diperoleh dengan teknik purposive sampling sehingga jumlah sampel 20 orang yang dibagi atas dua kelompok.Hasil penelitian diperoleh adanya perbedaan yang signifikan sebelum dan sesudah pemberian interferensi dan hold relax dengan selisih rata-rata nilai aktualitas nyeri 1.94 + 0.72 cm dan ROM sebesar 16.500 + 5.800 dengan hasil uji wilcoxon p=0.005 < α= 0.05. Sedangkan pada intervensi ultrasound dan hold relax diperoleh selisih rata-rata nilai aktualitas nyeri 1.41 + 0.21 cm dan ROM sebesar 10.80 + 3.150 dengan hasil uji wilcoxon p= 0.005 < α= 0.05. Pada uji Mann-Whitney diperoleh adanya perbedaan yang signifikan diantara kedua perlakuan, pada nilai rata-rata VAS dengan p= 0.029 < α= 0.05. Sedangkan pada luas gerak sendi tidak ada perbedaan yang signifikan pada kedua kelompok terhadap nilai  ROM dengan p= 0.74 > p= 0.05.Kesimpulan penelitian ini adalah ada perubahan aktualitas nyeri dan jarak gerak sendi (ROM) sebelum dan sesudah pemberian interferensi dan hold relax serta ultrasound dan hold relax pada pasien osteoarthritis sendi lutut. Tidak ada perbedaan perubahan jarak gerak sendi (ROM) diantara kedua kelompok perlakuan. Kata Kunci : Interferensi, Ultrasound, hold relax,  Nyeri dan Jarak Gerak Sendi Lutut  Pasien                       Osteoarthritis
PENGARUH TEKNIK PENGULURAN TERHADAP PENAMBAHAN BERAT DAN TINGGI BADAN BAYI USIA 2 – 4 BULAN DI RUMAH SAKIT IBU DAN ANAK PERTIWI MAKASSAR Andi Halimah; Hendrik Hendrik
GLOBAL HEALTH SCIENCE Vol 3, No 1 (2018): Maret 2018
Publisher : Communication and Social Dinamics (CSD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (186.449 KB) | DOI: 10.33846/ghs.v3i1.186

Abstract

Kondisi optimal pada masa bayi tidak lepas dari faktor fisik, psikis dan lingkungan si bayi,selain tentunya nutrisi yang baik dan adekuat. Pijat bayi adalah suatu usaha yang positif untuk memperoleh kondisi optimal pada pertumbuhan dan perkembangan pada masa bayi tersebut. Penelitian ini adalah penelitian quasi eksperimen di lapangan menggunakan rancangan the pretest-posttest two group disign. Populasi adalah bayi berusia 2 – 4 bulan yang lahir di Rumah Sakit Ibu dan Anak Pertiwi Makassar, berat badan lahir minimal 2500 gram hingga 3500 gram, panjang badan lahir minimal 43 cm – 50 cm. Sampel penelitian bayi berusia 2 – 4 bulan yang memenuhi kriteria inklusi yaitu Pemberian air susu ibu secara eksklusif dan Tidak sedang mengalami suatu penyakit yang dapat mengganggu jalannya penelitian, sehingga jumlah sampel sebanyak 24 orang. Hasil penelitian pada analisis paired t-test menunjukkan adanya perbedaan yang signifikan pada berat badan dan panjang badan sebelum dan sesudah pemijatan dengan teknik effleurage dan teknik pemijatan effleurage dan penguluran, dimana p= 0,000 < 0,05. Hasil analisis independent t- test menunjukkan ada perbedaan pengaruh yang signifikan antara pemijatan teknik effleurage dengan pemijatan teknik effleurage dan pengukuran terhadap rata-rata berat badan dengan p= 0,000 < 0,05, sedangkan pada faktor rata-rata panjang badan menunjukkan adanya perbedaan yang tidak signifikan, dimana p= 0,005 = 0,05. Kesimpulan ada perbedaan pengaruh pemberian pemijatan teknik effleurage dengan pemijatan teknik effleurage dan penguluran terhadap berat badan, tetapi tidak ada perbedaan pengaruh terhadap panjang badan. Kata Kunci: Bayi, Pemijatan, Effleurage, Penguluran, Berat badan, Panjang badan
PERANAN TEMPAT PELELANGAN IKAN (TPI) DALAM PEMASARAN IKAN HASIL TANGKAPAN NELAYAN DI PANGKALAN PENDARATAN IKAN (PPI) KEC. TANJUNG BERINGIN KAB. SERDANG BEDAGAI PROVINSI SUMATERA UTARA Hendrik Hendrik
Berkala Perikanan Terubuk Vol 41, No 1 (2013): Februari 2013
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (39.642 KB) | DOI: 10.31258/terubuk.41.1.102-108

Abstract

This research was done at TPI of Tanjung Beringin Serdang Bedagaidistrict, aimed of this research was effect of TPI on fish market was catch byfisherman. Result of this research showed effect of TPI on fish market at TanjungBeringin village was 33,8% and market fish at Serdang Bedagai district was10,5%. Effect of this market to PAD undergo increase was 40% every year.Keywords : TPI, fish, market