Development of Automatic Torque Bond Test

Proper bonding between adjacent pavement layers is very important to ensure good pavement performance. Manual torque bond test is known to be one of the tests to determine mechanical properties of bond between adjacent pavement layers. However, the test has several drawbacks that may affect the accuracy of results. This paper is focused on the development a mechanically controlled automatic torque bond test in order to eradicate the drawbacks associated with the manual torque bond test. A trial test and calibration of the newlydeveloped apparatus was performed to ensure the accuracy of results. The nominal loading rate of the manual torque bond test performed at 600Nm/min was found to be lower than the target loading rate, leading to a lower measured shear strength compared to that of the automatic torque test. It was also found that the appearance of lateral shear would not significantly affect the shear strength

PENGARUH KARAKTERISTIK SISTEM DAN INDIVIDU TERHADAP PENERIMAAN SISTEM ANGGARAN UNIVERSITAS SURABAYA

Nowadays, role of information technology in any aspect of human being has grown rapidly. Peoples need to quickly adapt with these situation. In fact, main factor causing failure in implementation of an information technology is the human resources associated with these technologies. This study examines the influence of system characteristics and individual characteristics in acceptance of University Budgeting System through the technology acceptance model. Using data collected by a quiestionaire conducted in 26 sub-systems in Surabaya University that used internet-based Budgeting system, this study finds that perceived usefulness and perceived ease of use significantly have a positive impact on attitude toward using a technology. Individual characteristics such as computer self efficacy, age, gender, educational level and experience influence user acceptance of technology but system characteristics such as relevant, screen design, complexity has no impact at all

PERANAN K3 DALAM MANAJEMEN BENCANA

A disaster is an event that occurs suddenly and is continuing that adversely affect the normal pattern of life or damage to the ecosystem. it is rcquired emeryency action an incredible to help and save people's lives and their environment. The incident could damage the structure and function of the crippling, resulting in damage and losses of lives and objects and facilities of community of life. Disarter management is all efforts are embodied in an activity or series of activities undertaken to eliminate in part of all of the disaster and its impact and avoid the disaster that impacts can be ninimized

Modul paket keahlian akomodasi perhotelan sekolah menengah kejuruan kelompok kompetensi I

Modul Guru Pembelajar Paket Keahlian Akomodasi Perhotelan SMK ini terdiri atas 2 materi pokok, yaitu : materi profesional dan materi pedagogik. Masing-masing materi dilengkapi dengan tujuan, indikator pencapaian kompetensi, uraian materi, aktivitas pembelajaran, latihan dan kasus, rangkuman, umpan balik dan tindak lanjut, kunci jawaban serta evaluasi pembelajaran

Control System of a Super Fast Reactor with Single Flow Pass Core

The one-pass supercritical pressure light water fast reactor has different core structure from that of the two-pass cooling type one. The distance between inlet and outlet channels of the one-pass supercritical pressure light water fast reactor is shorter with less core water inventory due to the removal of the gap channels. Its responses to a perturbation are similar to those of the two pass core. However, change of the outlet temperature regarding to a perturbation of power to flow ratio in the one-pass cooling type fast reactor is larger. It is important to suppress the change as small as possible to keep the integrity of the reactor structure. Early designs of power and pressure control systems of a supercritical pressure light water fast reactor are applicable to control the power and pressure parameters, but it is not for the early outlet temperature control system which considered only the outlet temperature deviation as the feedback. An improved outlet temperature control system which considers both the signals of outlet temperature and power deviations as the control feedbacks can be applied in the one-pass cooling-type fast reactor with adjustment on the control’s parameters. Optimized control’s parameters can suppress the change of the outlet temperature significantly without oscillation. By using the control system, responses of the one-pass supercritical pressure light water fast reactor to the designated perturbations satisfy the criteria

Optimization of Location Model of Capacitated Network

This study concerns with the research work on Location Model of Public Service Obligation State-Owned Company (PSO-SOC). Its aim is to develop an approach of making location decision on distribution facilities of such company, in which capacities of facilities are limited (capacitated facilities) and it deals with single commodity. Heuristic solution is proposed to modify established Add Algorithm, which is designed for uncapacitated facilities. The Network Representation is used to represent original problem of LocationModel. An example is provided to illustrate the proposed step-wise of solving the model

Deposition of ZnO Thin Films by Spray Coating Technique for Photocatalytic and Photochemical Degradation of Methylene Blue (MB)

Deposition of a thin layer of Zinc Oxide (ZnO) on glass substrates by spray coating techniques has been done. ZnO is a semiconductor with band gap energy of ~ 3.2 eV and has the properties as oxidation photo catalysts that will transform harmful compounds and toxic substances in water into harmless compounds. ZnO thin film deposition is conducted by making gel ZnO with dissolving zinc acetate dehydrate (Zn(COOCH3)2.2H2O into a solution of isopropanol ((CH3)2CHOH) and monoethanolamine (MEA: HOCH2CH2NH2) at room temperature with a concentration of 0.3 M zinc acetate and the molar ratio is 1:1. ZnO gel is placed on the spray hole and sprayed on a glass substrate which has been heated at a temperature of 250°C at a pressure of 70 psi to form a thin layer. A thin layer is sintered at a temperature of 450°C for 2 hours. A ZnO thin layer then used as a photocatalytic and photochemical degradatioan of methylene blue (MB) with and without stirring. The microstructure analysis by using XRD show that the thin layers having polycrystalline wurtzite structure with orientations (100), (002), (101) and (110). EDS characterization showed that thin layers of ZnO consists of 50.27% and 49.73% zinc and oxygen atomic, respectively. ZnO photocatalyst reaction by using ultra violet light (UV) for 3 hours has been reduces the concentration of MB until 97.05%. A high percentage of color degradation MB performed by treatment with stirring

Ascaris Lumbricoides Eggs and Human-Intestinal Protozoan Cysts Found in River Water of Angke River, Jakarta

Fecal contamination is a serious environmental problem at Angke River Jakarta. A cross-sectional study was conducted during April-June 2007 and the aim of the study is to assess the water quality of Angke River by detection of Ascaris lumbricoides eggs and the protozoan cysts. A total 24 L water of Angke River was collected from 8 sampling locations consisted of Kembangan/Duri Kosambi (upper reaches of river), Pesing Polgar (lower reaches of river), Teluk Gong (lower reaches of river), Pantai Indah Kapuk (estuary), River Mouth, left side of River Mouth, right side of River Mouth, and outer side of River Mouth. The water specimen was examined microscopically for A. lumbricoides eggs and protozoan cysts using a concentrated technique. Of 8 locations, 4 locations (50 %, 4/8), Kembangan/Duri Kosambi, Teluk Gong, Pantai Indah Kapuk and left side of river mouth were positive for A. lumbricoides eggs and 2 locations (25%, 2/8), Kembangan/Duri Kosambi and Pesing Polgar positive for Entamoeba histolytica cysts. Overall, 60 A. lumbricoides eggs and 2 E. histolytica cysts were found in 24 L water specimens. Among sampling locations, the most number of A. lumbricoides eggs were found at eastuary. The water of Angke River, Jakarta, has been contaminated by human feces contained A. lumbricoides eggs and E. histolytica cysts. The water was unsafe for drinking water