118 research outputs found
OPTIMASI BIAYA PEKERJAAN ASPAL HOT MIX DENGAN MODEL PENUGASAN (ASSIGNMENT MODEL) PADA PROYEK JALAN DI MALANG
No full text Abstrak:Aspal hot mix merupakan salah satu bahan yang digunakan untuk lapisan perkerasan jalan. Pada tahun 2004 di MALANG terdapat 55 proyek yang dilayani oleh 10 alat pencampur aspal hot mix (Asphalt Mixing Plant/ AMP), akibat keterbatasan AMP menyebabkan terjadinya keterlambatan proyek. Tesis ini bertujuan untuk melakukan optimasi biaya pekerjaan aspal hot mix dengan model penugasan (Assignment). Optimasi biaya dilakukan dengan mengatur alokasi AMP untuk memenuhi kebutuhan proyek. Analisa dilakukan dengan menghitung kebutuhan hot mix masing-masing proyek, harga sewa, biaya mobilisasi dan demobilisasi. Dari hasil analisis diperoleh penugasan masing-masing AMP yaitu PT. Kresna Karya, PT. Tunas Jaya Sanur, PT. Adi Murti, PT. Sinar MALANG, PT. Darma Buana Karya, PT.AKAS, PT. Sumber Karisma Jaya dan PT. Dwi Arta Yuda Utama sebanyak 6 penugasan. PT. Makura mendapat 4 penugasan dan PT. Harapan Jaya mendapat 3 penugasan. Total biaya sebesar Rp. 29.456.132.296,00, sedangan biaya total minimum dari palaksanaan riil dilapangan diperoleh biaya sebesar Rp. 32.347.308.872,00. Jadi,dengan model penugasan diperoleh penghematan biaya sebesar Rp. 2.891.176.576,00. Kata kunci: optimasi, aspal hot mix, model penugasan. Abstact: Hot mix asphalt is one kind of the material, which is used for road pavement. In 2004 there were 55 projects served by 10 Asphalt Mixing Plants/AMP in MALANG, due to limited AMP causes the project delayed. The objective of this research is to optimized the project cost of hot mix asphalt based on assignment model. Cost optimalization is undertaken by regulating AMP allocation to fulfill the project need. The analysis is undertaken through the calculation the need of hot mix for each project, lease cost, mobilization as well as demobilization cost. Based on the result of analysis, it is found that assignment for each AMP, is as follows: PT. Kresna Karya, PT. Tunas Jaya Sanur, PT. Adi Murti, PT. Sinar MALANG, PT. Darma Buana Karya, PT.AKAS, PT. Sumber Karisma Jaya and PT. Dwi Arta Yuda Utama with 6 assignment, PT. Makura got 4 assigment and PT. Harapan Jaya got 3 assigment. Total Cost is Rp 29,456,132,296, while minimum total cost from real implementation of the project site is found Rp 32,347,308,872. Hence, the efficiency found by using this assignment model is about Rp. 2.891.176.576,00. Keywords: optimalization, hot mix asphalt, assignment model
Bunga Yang Disepakati Dalam Perjanjian Dikaitkan Dengan Pasal 1767 Kitab Undang-Undang Hukum Perdata
No full textRancang Bangun Alat Penjernih Air Limbah Cair Laundry Dengan Menggunakan Media Penyaring Kombinasi Pasir – Arang Aktif
No full textPerkembangan jasa pencucian pakaian (laundry) berkontribusi pada peningkatan penggunaan air tanah dan pemakaian deterjen sehingga menghasilkan limbah cair yang dapat mencemari lingkungan. Oleh karena itu, diperlukan sistem pengolahan air limbah laundry menjadi air bersih. Tujuan penelitian ini adalah menentukan pengaruh bahan penyaring pasir silika, zeolit dan arang aktif terhadap hasil olahan air limbah laundry dan mengetahui pengaruh tekanan dan waktu pemakaian reaktor penyaring. Metode pengolahan yang digunakan adalah filtrasi menggunakan filtrasi pasir silika, adsorpsi karbon aktif, serta gabungan pengolahan filtrasi pasir aktif dan adsorpsi karbon aktif untuk menghasilkan air bersih. Hasil penelitian menunjukkan bahwa metode pengolahan koagulasi dan flokulasi, filtrasi pasir aktif, adsorpsi karbon aktif serta gabungan filtrasi pasir aktif dan adsorpsi karbon aktif mampu menurunkan kekeruhan hingga batas maksimum air bersih. Karakteristik limbah laundry pada tekanan 1 bar memiliki nilai warna, COD dan TSS yang cenderung menurun dari menit ke 20 hingga menit ke 60 , warna nilai 138, COD 908 mg/l dan TSS 215 mg/l. Sedangkan pada tekanan 2 bar memiliki nilai warna, COD dan TSS yang cenderung menurun dari menit ke 20 hingga menit ke 60 , masing-masing masing-masing warna nilai 40, COD 746 mg/l dan TSS 210 mg/l. Air yang dihasilkan bukan merupakan air bersih tetapi aman untuk dibuang ke lingkungan
Immunity Response of Gumboro and ND Vaccination Result which Given with Time Spacing in Broiler Chicken
No full textAn experiment was planed to know the possibility of negative effect on Gumboro vaccination program. This program has a possibility to cause “Sick†condition on fabrious bursal of broiler chicken. From that case, it need time spacing for subsequent vaccination program, for instance ND vaccination program. Time spacing is very importance to broiler chicken for recovering that “Sick†condition because of Gumboro vaccination effect. The purpose of his research was to know the best time spacing between Gumboro and ND vaccination program on broiler chicken. An experimental method was used in this research, and the material used was 216 broiler chickens. A 3x4 factorial arrangement (Gumboro vaccination as factor A and ND vaccination as factor B) with three broiler chickens per unit and six replicates of each treatment combination was used in the research. Variables tested of this experiment HI ND antibody titer, body weight of 4 weeks old, and the symptom appeared after vaccination program. Anava was used to analyze the data obtained and used orthogonal polynomial for subsequent analysis. The research results showed that the best time spacing was eight days and there was no symptom appeared after  Gumboro vaccination program. There were no significantly influence of vaccination treatments on broiler chicken health and body weight. (Animal Production 3(2): 67-73 (2001) Key Words: Vaccination, symptom, antibod
Kematangan Shop Drawing Sebagai Penentu Pekerjaan Ulang (Rework) Proyek Konstruksi
No full textConstruction project implementation mostly faced by rework. Rework couldn’t be avoided and is experienced in a construction world. Rework is defined as all physical work of construction committed more than once or re-work which is done by contractor in the implementation stage, and or an activity to eliminate works that have been done before as a part of construction project out of resource context, where there is no change order and making up the cost from the owner. Rework could give a bad impact to performance, work productivity, and cost directly or indirectly having it has a quite significant consequences. By considering the bad impact obtained has far-reaching consequences, hence efforts to reduce the occurrence of rework in construction project stage is highly needed. This research was conducted to prove the maturity of Shop Drawing as a Determinant of Rework Project Construction of Multilevel Buildings Research carried out by using questionnaires. Respondents at the main survey stage were shown to contractors who were carrying out multistorey construction projects in the DKI Jakarta and surrounding areas. Respondents who filled in the Project Manager questionnaire were 3 people, 7 Site Managers, 5 Supervisors, 6 Quality Controls, 4 Engineering staff. In this study, data analysis techniques are determined using the AHP (Analytical Hierarchy Process) method, aiming to determine the dominant factors (ranking) of the factors that cause rework in construction work to prove the maturity of Shop Drawing As Determine Project Rework Construction of multistorey buildings. The results of this study indicate that the maturity of shop drawings greatly determines the occurrence of rework in multistorey building projects
Grassing as potential factor in Gastrointestinal Nematodiasis in Goat in Banyumas District
No full textGoat system manajemen like housing, feeding dan grassing have been studied on the diseases association in gastrointestinal nematodiasis infection. The method applied was survey on 150 goat (Jawarandhu) faeces sample in Banyumas District. The Research was carried out from July to September 2004. The result showed that the nematode infection 1,54 times to goat if grassing and 88,62% infection in groups. Housing, Feeding have no risk and associated with disease infection. (Animal Production 6(2): 95-100 (2004) Key words : management system, disease association, nematod
PENGARUH KONDISI LABAN TERHADAP KEJADIAN PENYAKIT CACING HATI(DISTOMATOSIS) PADA SAPI PERANAKAN ONGOLE DI KABUPATEN BOJONEGORO
No full textKesimpulan:
1. Kejadian penyakit cacing hati pada sapi peranakan Ongole di Kabupaten BOjonegoro 34,39%.
2. Kondisi lahan berpengaruh terhadap Kejadian penyakit cacing hati pada sapi peranakan Ongole.
3. Kejadian penyakit cacing hati pada lahan banjir lebih tinggi dibanding dengan lahan yang lain.
4. Kejadian penyakit cacing hati pada lahan bertanah Kapur lebih rendah dibanding dengan lahan yang lain
IMPLEMENTATION OF OCCUPATIONAL HEALTH AND SAFETY MANAGEMENT IN DEVELOPING COUNTRIES, STUDY IN CONSTRUCTION FIELD IN INDONESIA
No full textUntil now, the construction industry still has low performance in safety. The accident rate in
construction projects is higher than average rate in other industries, especially in developing
country. The impacts of construction accidents is financial loss, social loss, and human
suffering. In the line of that, to minimize the level of accident in construction field is an
useful effort in public welfare. Internationally, to implement health and safety, companies
should based on Occupational Health & Safety Management System (OHSMS). In Indonesia
especially in construction project, the Ministry of Public Works of Indonesia have developed
an instrument for assessing the implementation of OHSMS, and therefore this research based
on that instrument. This research conducted in 2014 across the cities of Semarang, Jakarta,
Bogor, Depok, Tangerang and Bekasi (Sejabodetabek). The results of the research from 57
medium rise building project through purposive sampling were: (i) The implementation of
OHSMS in construction in several cities in Indonesia included in a “green level” (85% -
100%). It is mean that contractor have been a good achievement in implementing OHSMS
(ii) The implementations that toward 85% or yellow level were: competence and training,
communication and participation, incident investigation and preventive actions. (iii) The
implementations that still included in yellow level should be improved, in order to be a good
level. (iv) The result of this research was near to the result of several researches at another
cities in Indonesia. The recommendation of this research were: (i) the performance of
OHSMS in Indonesia should be maintained and further enhanced, (ii) the study in
construction safety should regard to comprehensive approac
IDENTIFIKASI FAKTOR DOMINAN PENGELOLAAN WADUKYANG BERPENGARUH TERHADAP KINERJA WADUK
No full textTantangan dalam penyediaan sumber daya dewasa ini adalah bagaimana mencapai keberlanjutan ketersediaan sumber daya air baik dari segi kuantitas maupun kualitas dengan memperhatikan pengelolaan yang menjaga sumber daya tersebut dari pemanfaatannya yang merusak. Waduk dan danau berperan sebagai reservoir yang dapat dimanfaatkan airnya untuk keperluan sistem irigasi dan perikanan, sebagai sumber air baku, sebagai tangkapan air untuk pengendalian banjir, serta penyuplai air tanah. Untuk menjamin fungsi waduk dan danau yang tetap optimal dan berkelanjutan, kegiatan pengelolaan harus ditekankan pada upaya pengamanan waduk dan danau juga daerah di sekitarnya.Tujuan penelitian ini adalah untuk mengetahui faktor-faktor dominan pengelolaan waduk yang berpengaruh terhadap kinerja waduk, dan untuk menentukan solusi yang tepat untuk menangani permasalahan kinerja waduk, sehingga dapat meminimalisir terjadinya kegagalan dalam pengoperasian waduk dan waduk dapat operasi secara optimal.Metode penelitian yang digunakan yaitu deskriptif, dengan pengumpulan data primer diperoleh melalui wawancara dan angket menggunakan daftar pertanyaan, dan data sekunder diperoleh dari instansi yang ada kaitannya dengan penelitian ini. Data yang dihasilkan dianalisis secara deskriftif dan statistik, dengan menggunakan analisis faktor konfirmatori (CFA) dan analisis regresi.Hasil penelitian menunjukkan bahwa : (1) Fungsi-fungsi/aktifitas pengelolaan waduk yang meliputi perencanaan pelaksanaan dan pengendalian sudah dilakukan cukup baik. Faktor dominan pengelolaan waduk yang mempengaruhi kinerja waduk adalah Pelaksanaan kalibrasi secara rutin, perencanaan SOP, pelaksanaan SOP, evaluasi penggunaan air waduk, pemeriharaan dan penggantian peralatan, kelengkapan SOP, pemeliharaan alat penduga sedimentasi, pendataan DAS, proses pengerukan waduk, debit inflow, pengukuran debit sedimentasi, (2) Perencanaan pengelolaan waduk berpengaruh terhadap kinerja waduk sebesar 30,60%, (3) Pelaksanaan pengelolaan waduk berpengaruh terhadap kinerja waduk sebesar 30,20%, (4) Secara parsial evaluasi penggunaan air waduk pemeliharaan dan penggantian peralatan dan proses pengerukan waduk memberikan pengaruh yang signifikan terhadap kinerja waduk, dan (5) Alternatif upaya pengelolaan waduk yang dapat dilakukan meliputi berbagai aspek antara lain: (a) Pengelolaan hulu waduk, yaitu dengan rehabilitasi dan konservasi daerah aliran sungai, (b) Pengelolaan daerah sekitar waduk, yaitu dengan penertiban alih fungsi lahan menjadi lahan pertanian, serta melibatkan masyarakat dalam pengelolaan waduk secara partisipatif dan mandiri, dan (c) Pengelolaan waduk yaitu dengan melakukan pengerukan waduk dalam rangka meningkatkan daya tampung waduk
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