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PERBEDAAN PRESTASI BELAJAR DAN KETERAMPILAN PROSES SAINS MATERI FISIKA Nugroho, Joko; Hasyim, Adelina; Suyatna, Agus
Jurnal Teknologi Informasi Komunikasi Pendidikan Vol 2, No 4 (2014): Jurnal Teknologi Informasi Komunikasi Pendidikan
Publisher : Jurnal Teknologi Informasi Komunikasi Pendidikan

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Abstract

The purpose of this research is to analyze and find (1) the differences of academic achievement based on laboratory techniques, (2) the performance of academic achievement based on entry behavior, (3) the interaction between the practice and entry behavior on student achievement. The study was conducted in junior high school SMP Ma’arif 12 Terbanggi Besar, Lampung Tengah.Data collecting technique used observation technique and questionnaires, also all data being analyzed factorial design. The results showed that (1) there was difference in academic achievement of sciences based on practice technique because value sig,000 < 0,05 so H1 received, (2) there was difference academic achievement of sciences based on entry behavior, because value sig 0,048 < 0,05 so H1 received, (3) there is no interaction practice technique and entry behavior student based on academic achievement, because value sig  466 > 0,05 so Ho received.Tujuan penelitian ini adalah untuk menganalisis dan menemukan (1) perbedaan  prestasi belajar yang disebabkan perbedaan teknik praktikum, (2) perbedaan  prestasi belajar yang disebabkan perbedaan kemampuan awal (3) interaksi praktikum dan kemampuan awal terhadap prestasi belajar siswa. Penelitian dilakukan di SMP Ma’arif 12 Terbanggi Besar Lampung Tengah. Teknik pengumpulan data menggunakan tes, observasi dan angket serta dianalisis menggunakan desain faktorial. Hasil penelitian diperoleh (1)  ada perbedaan prestasi belajar IPA yang disebabkan teknik praktikum karena nilai sig,000 < 0,05 sehingga H1 diterima. (2) ada perbedaan prestasi belajar siswa yang disebabkan  kemampuan awal,karena  nilai sig 0,048< 0,05 sehingga H1 diterima. (3) tidak ada interaksi teknik praktikum dan kemampuan awal siswa terhadap prestasi belajar, karena nilai sig  466 > 0,05 sehingga Ho diterima.Kata kunci : kemampuan awal siswa, keterampilan proses sains, praktikum, prestasi belajar 
Kajian Peran Serta Petani Terhadap Penyesuaian Manajemen Irigasi untuk Usaha Tani Padi Metode SRI (System of Rice Intensification) di Petak Tersier Daerah Irigasi Cirasea, Kabupaten Bandung, Jawa Barat Wiyono, Agung; Legowo, Sri; Nugroho, Joko; Nugroho, Christian Adi
Jurnal Teknik Sipil Vol 19, No 1 (2012)
Publisher : Institut Teknologi Bandung

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Abstrak. Budidaya dan penerapan metode SRI (System of Rice Intensification) sifatnya sangat kompleks, dengan adanya teknologi pertanian yang terkait dengan aspek sosial-budaya masyarakat petani dan pengemban kebijakan, lambat laun akan mendorong terjadinya perubahan pada manajemen irigasi. Tujuan dari penelitian ini adalah meneliti seberapa besar pengaruh dari peran serta petani dalam upaya menyesuaikan manajemen irigasi untuk usaha tani padi metoda SRI di daerah irigasi Cirasea, Kabupaten Bandung, Jawa Barat. Dengan responden 88 orang kelompok tani SRI dan 14 orang dari instansi, diperoleh hasil penelitian: variabel kelembagaan (X1), Irigasi(X2), dan Partisipasi Petani dan Sistem Pendukung(X3), secara bersama-sama berpengaruh terhadap Penyesuaian Manajemen Irigasi SRI (Y) nilai korelasi 0,672. (Hubungan kuat), dimana persamaan regresinya adalah Y= 6,957 + 0,239 X1 - 0,327 X2 + 0,604 X3. Partisipasi Petani dan Sistem Pendukung (X3) merupakan faktor dominan yang paling berperan dalam memprediksi tingkat penyesuaian manajemen irigasi SRI dengan nilai koefisien regresi 0,604. Dari sisi institusi didapatkan Pilihan untuk Berpartisipasi (X1), Tekanan Sosial Dalam Bertingkah Laku (X2) dan Kontrol dalam Tingkah Laku (X3) secara bersama-sama berpengaruh terhadap Itensi (Y) dengan nilai korelasi 0,783 (Hubungan kuat), dimana persamaan regresinya adalah Y= 0,854 - 0,286 X1 + 0,558 X2 + 0,693 X3. Variabel Kontrol dalam Tingkah Laku (X3)merupakan faktor dominan yang paling berperan dalam memprediksi variabel Itensi (Y) dengan nilai koefisien regresi0,693.Abstract. Cultivation and application of the SRI (System of Rice Intensification) method are very complex, with the presence of agriculture technology associated with socio-cultural aspects of farming communities and policy holders, eventually leading to changes in irrigation management. The purpose of this study was to test how much the influence of farmers participation in irrigation management efforts to adjust the SRI method of rice farming in irrigated areas Cirasea, Bandung regency, West Java. With 88 respondents from SRI farmer groups and 14 respondents from the agency, they obtained the results of the research: institutional variables (X1), Irrigation (X2), and Farmer Participation and Supports System (X3). They affect SRI Irrigation Management Adjustment (Y)  values correlation of 0.672 (Strong relationship) with the regression equation Y= 6,957 + 0,239 X1 - 0,327 X2 + 0,604. Farmer Participation and Support System (X3) are the most dominant factors play a role in predicting the level of irrigation management SRI adjustments to the value of regression coefficient of 0.604. In the case of agencies found that the Option To Participate (X1), Social Pressure In Practice Acting (X2) and Control of Behavior (X3) jointly affect Itensi (Y) with a 0.783 correlation value (strong ties). With the regression equation Y= 0,854 - 0,286 X1 + 0,558 X2 + 0,693, the unknown variable in the Control of Behavior (X3) is the most dominant factors play a role in predicting Itensi variable (Y) with a regression coefficient value of 0.693.
Perbandingan Gerusan Lokal yang Terjadi di Sekitar Abutment Dinding Vertikal Tanpa Sayap dan dengan Sayap pada Saluran Lurus, Tikungan 90°, dan 180° (Kajian Laboratorium) Wiyono, Agung; Nugroho, Joko; Widyaningtias, Widyaningtias; Zaidun, Eka Risma
Jurnal Teknik Sipil Vol 18, No 1 (2011)
Publisher : Institut Teknologi Bandung

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Abstrak. Fenomena kerusakan jembatan akibat gerusan pada pondasi pier atau abutment sulit diamati secara langsung. Salah satu metode untuk menyederhanakan adalah dengan pemodelan fisik di laboratorium. Tujuan penulisan jurnal ini adalah membandingkan gerusan yang terjadi di sekitar abutment dinding vertikal tanpa sayap dan dengan sayap pada saluran lurus, tikungan 90o, dan 180o. Perbandingan difokuskan pada gerusan lokal jenis live -bed scour dan terjadinya transportasi sedimen sepanjang pengaliran debit 4, 5, 6, dan 7 liter/detik pada model saluran. Penelitian dilakukan dengan membangun model saluran terbuka dengan dinding fiberglass dan dasar saluran terbuat dari semen, saluran memiliki bagian lurus serta sudut tikungan 90° dan 180°. Hasil parameter fisik berupa kecepatan dan kedalaman gerusan, dibandingkan secara analitik dengan menggunakan Formula Laursen (1960), Froehlich (1989), dan Mellvile (1997). Hasil perbandingan menunjukkan bahwa pada abutment dinding vertikal tanpa sayap, hasil perhitungan Formula Laursen paling mendekati hasil pengamatan dengan persentase kesalahan 20,02%. Sedangkan untuk abutment dinding vertikal dengan sayap, persentase kesalahan terkecil sebesar 28,17%, dengan menggunakan Formula Froehlich (1989). Untuk abutment dinding vertikal tanpa sayap, kedalaman gerusan maksimum terjadi di sekitar hulu abutment, dan segmen tengah abutment untuk abutment dinding vertikal dengan sayap. Untuk kedua tipe abutment sedimentasi tertinggi terjadi di sebelah hilir.Abstract. The damage phenomenon of the bridge due to scour on pier foundation or abutment is difficult to observe directly. One of the methods to simplify this phenomenon is modeling in the laboratory. The purpose of this research is to compare scouring around vertical wall and vertical wing-wall abutment in straight channel, 90o, and 180o curve channel. Scouring comparison focused on the live-bed scour and the occurrence of sediment transport along the 4, 5, 6, and 7 liters / second discharge on the channel model. Results of physical parameters such as velocity and depth of scouring compared with the analytical using Laursen (1960), Froehlich (1989), and Mellvile (1997) formula. The result from each calculation will be compared with the observation data. The resultshows that maximum scouring for vertical wall and vertical wing-wall abutment occurred in upstream and middle of abutment respectively. Furthermore, sedimentation for both of types is around downstream of abutment. From the analytical comparison, Laursen’s Formula gives closer accuracy for vertical wall abutment than others formulas, with the percentage of error is about 20,02%. While, Froehlich’s Formula gives 28,17% for wing-wall abutment.
Analisis Wilayah Tergenang dan Perilaku Banjir pada Simulasi Kegagalan Bendungan Ciawi Wirustyastuko, Dandi; Nugroho, Joko
Jurnal Teknik Sipil Vol 20, No 2 (2013)
Publisher : Institut Teknologi Bandung

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Abstrak. Paper ini menyajikan hasil analisis wilayah yang berpotensi terkena genangan banjir apabila Bendungan Ciawi mengalami kegagalan dan membuat peta daerah bahaya bencana banjir. Analisis wilayah tergenang dan perilaku banjir dalam studi ini menerapkan program ZhongXing HY-21 untuk membuat hidrograf aliran keluar dari bendungan, menganalisis tinggi genangan dan cepat rambatan banjir serta mengetahui sebaran wilayah yang terkena genangan. Selanjutnya dari parameter tersebut akan dilakukan analisis resiko genangan dengan penentuan klasifikasi resiko bencana untuk daerah hilir bendungan ditinjau dari tinggi genangan dan penduduk terkena resiko bencana. Debit outflow maksimum terjadi pada rekahan akibat keruntuhan Bendungan untuk skenario kasus piping yaitu 83690,9 m3/s (pada waktu ±0,52 jam saat proses keruntuhan). Jumlah wilayah terbesar yang terkena dampak genangan mencapai 21 Kecamatan dari 6 Kabupaten untuk skenario kasus overtopping. Klasifikasi tingkat resiko untuk daerah hilir Bendungan Ciawi secara umum termasuk dalam kategori dengan nilai 3 (Tingkat Resiko Menengah) dan kategori Daerah Bahaya Bencana 3 (tinggi genangan > 2 m). Abstract. This paper presents the area potentially affected by flood inundation in case of Ciawi Dam failure and to make a map of the flood hazard areas. Analysis of the flood inundation and its behavior in this study were done by application of the ZhongXing HY-21 program. The application of software resulted some paramteres, i.e : the outflow hydrograph through the dam, analyzing the water level, flood travel time and determining the distribution of the affected areas by inundation. Further more from these parameters will be analyzed to determine the risk of inundation by determining the downstream hazard classification in term of water level and risk recipient population. Dam failure due to piping case scenario has the largest discharge outflow which is 83690,9 m3/s (± 0.52 hours at the process of the failure). The largest number of areas affected by inundation reached 21 Sub-districts of 6 Districts to overtopping case scenario. The classification of Ciawi Dam downstream hazard generally included in the category with a value of 3 (Intermediate Risk Level) and category 3 of Disaster Hazard Areas (water level > 2 m).
Experimental Study of Energy Dissipation at Baffled Chute Spillway Nugroho, Joko
Jurnal Teknik Sipil Vol 26, No 1 (2019)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1531.397 KB) | DOI: 10.5614/jts.v26i1.11188

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Experimental observation on a model of free over flow spillway is used in this study.  Three configurations of baffle placement are used in the experiment.  The energy along the flow over the spillway were calculated based on measured flow depth and discharge during the experiment. Variations of flow depth and discharge were determined based on baffle height as a reference.  The experiments were done in a 7 meters long flume of 0.078 m wide.  The spillway model has a dimension of 17.2 cm high, with rounded crest and 1:1 downstream slope.  There is no structures placed at the downstream of spillway.  The discharge applied to the spillway model is in the range of 0.6 to 1.8 l/s.  The experimental results shows that optimum results of energy dissipation were obtained when the flow depth is equal to the height of the baffle.  Observed energy dissipations in this is in the range of 30% to 50% upon the incoming energy of the spilled flow.  It was also observed that the length of the hydraulic jumped is reduced due to the application of baffled chute.
PENGARUH GAYA KEPEMIMPINAN TERHADAP KEPUASAN KERJA DENGAN MODERASI MOTIVASI NUGROHO, JOKO
Jurnal Ilmiah Telaah Manajemen Vol 2 No 3 (2005): Vol. 2 No. 3 2005
Publisher : Jurnal Ilmiah Telaah Manajemen

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The objective of this research is to examine the impact of leadership style to the job satisfaction with motivation being a moderating variable. This research is case study at KPU (General Election Commission) in Grobogan Regency.By using the purposive sampling method the research finds that leadership style significantly positive impact the job satisfaction with coefficient 0,802. That impact is moderated by job motivation.
THE INFLUENCE OF SUPPLY CHAIN INTEGRATION ON ORGANIZATIONAL PERFORMANCE: FROM THE POINT OF VIEW OF ORGANIZATIONAL CAPABILITY IN INDONESIA Hidayat, Ahmad; Nugroho, Joko; CANIAGO, ASPIZAIN; Ismail, Dingot Hamonangan; Solihin, Agung; Halim, Paisal
International Journal of Supply Chain Management Vol 9, No 2 (2020): International Journal of Supply Chain Management (IJSCM)
Publisher : International Journal of Supply Chain Management

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The current research intends to analyze the implications of three aspects of supply chain integration (SCI) on three types of firm performance (FP) from the organizational capability (OC) context. The analysis examines the associations between internal integration (II), consumer integration (CI), supplier integration (SI), supplier-oriented performance (SOP), market-oriented performance (MOP), and financial condition from the organizational capacity point of view, based on the data of 670 firms in Indonesia. The structural equation model is used to carry out the analysis. The findings suggest that internal integration strengthens external integration and explicitly and implicitly increases FP through internal and external collaboration. Furthermore, complete or partial meditation between supply chain integration and FP are revealed and thus demonstrate the contradictory results regarding SCI on FP in earlier investigations. 
SIKAP MASYARAKAT DUSUN PASIR LAUT TERHADAP KEBERADAAN HUTAN MANGROVE DI DUSUN PASIR LAUT KECAMATAN MEMPAWAH HILIR KABUPATEN MEMPAWAH nutriawani, rafika; Nurdjali, Bachrun; Nugroho, Joko
JURNAL HUTAN LESTARI Vol 5, No 2 (2017): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v5i2.20042

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Mangrove forests have an important role in protecting the coastline, maintaining and balancing ecological balance estuary in coastal areas that receiving most of the pressure. Mangrove forest ecosystem has a variety of functions and benefits there are very important for other ecosystems. This is forests, water, and natural surroundings. The existence of mangrove also give effect to the community residing on the seashores, this study aimed to determine the attitudes of society in Dusun Pasir Laut to the existence of mangrove forest in Dusun Pasir Laut and analyze the relationship between the level of perception, knowledge and cosmopolitan attitude of society Dusun Pasir Laut against the existence of mangrove forest in Dusun Pasir Laut. The mangrove forest in Dusun Pasir Laut, Mempawah Hilir Subdistrict is one of the livelihoods of local people. Dusun Pasit Laut community in diverse activities to live. Judging from the level of education and socioeconomic levels are diverse, people in Dusun Pasir Laut, has diverse knowledge levels that can cause differences in attitude in view of the existence of a mangrove forest. Through institutions need to be developed to the community so as to play an active role in maintaining, protecting and developing mangrove ecosystem in the long term. Keywords: attitudes and perceptions, cosmopolitan, mangrove
PERSEPSI MASYARAKAT TERHADAP KEBERADAAN HUTAN MANGROVE DI KELURAHAN KUALA KECAMATAN SINGKAWANG BARAT KOTA SINGKAWANG Khairiansyah, Muhammdad; Zainal, Sofyan; Nugroho, Joko
JURNAL HUTAN LESTARI Vol 6, No 2 (2018): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v6i2.26098

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Mangrove forest in Kelurahan Kuala Disctrict of Singkawang Barat Singkawang City is utilized by the local residents to fulfill their needs. The relationship between the community and the existence of mangrove forest elicits specific perception on mangrove as an effort to maintain and preserve mangrove forests. This study aims to observe the perception from the community in Kelurahan Kuala District of Singkawang Barat Singkawang City on the existence of Mangrove forest and the factors influencing. The study used survey method, and the technique used was purposive sampling and proportional sampling. The total respondents are 94 persons. The results show that the level of people perception on the existence of mangrove forest in the coastal areas of Kelurahan Kuala belongs to moderate level, with 11 high perception respondents (12%), 67 moderate perception respondents (71%), and 16 low perception respondents (17%).Keywords: kelurahan kuala, mangrove forest, people perception,
ANALISIS SPASIAL GUNA MENDUKUNG IDENTIFIKASI AWAL POTENSI NILAI KONSERVASI TINGGI (NKT) DI PT. BUMI PRATAMA KHATULISTIWA KECAMATAN SUNGAI AMBAWANG KALIMANTAN BARAT Dewi, Puti Sari; Nugroho, Joko; Latifah, Siti
JURNAL HUTAN LESTARI Vol 5, No 4 (2017): JURNAL HUTAN LESTARI
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jhl.v5i4.23244

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Forest deforestation caused loss of habitat for endangered species. Changes in forest into oil palm plantation by PT Bumi Pratama Khatulistiwa (BPK) resulted in many conflicts with the community and make the loss of conservation value. Studies on areas that have a high conservation value necessary to maintain the stability of the clearing of forests to the environment is sustainable. Geographic information system technology (GIS) field of conservation is able to provide spatial information, determine the species habitat, analysis to find protected areas and mapping out areas of biodiversity.  The purpose of this study to determine the ability of GIS technology in providing information for the early identification of areas with high conservation value and determine which area has high conservation value (HCV) in the concession area of PT BPK and surrounding villages. Research was conducted for two months.  The research results show that GIS has enormous benefits in mapping out areas of high conservation value. Work on a large scale can be easily done and also save time, effort and cost. Location HCV 1 overlapping with the HCV 3 and 4 which are in the river, riparian and peat swamp forests. Location NKT 2 was not found, because most of the research area is an open area, there is no broad landscape. Location HCV 5 was not found, because most people in the study area does not depend anymore with natural forests.  Oil palm plantations PT BPK give people easy access to the city, to buy daily necessities. Location HCV 6 is located within the concession area of PT BPK namely padagi sites. The site was used by the Dayak community to worship ancestors and offer prayers at tuah jubata (god almighty one).Keywords: Geographic Information System (GIS), High Conservation Value (HCV), PT BPK.