Effect Of Endotoxin Levels Lipopolysaccharide (Lps) In Wood
Dust Against Increased Levels Of C-Reactive Proteinand
Decreasing The Lung Function Sawmill Workers
In Factory Mojoagungjombang
Nurifa Handayani, Damayanti Sima Sima Sohilauw, SafrudinTolinggi,
Soedjajadi Keman, I KetutSudiana
Index: 10.183x/A380105 
ESCI-MML: 183X-0308-0105
Abstract:
Abstract:- Wood dust contained endotoxin LPS can cause respiratory tract inflammation, decreased lung
function and pneumonitis. This study aims to analyze the effect of endotoxin levels to elevated levels of serum
C-RP and a decrease in pulmonary function sawmill workers. Analytic observational research methodology to
design a prospective longitudinal study.The study sample as many as 12 workers in the factory Sawmill
MojoagungJombang.Data collection techniques with interviews, personal dust measurements, personal
endotoxin measurements, blood sampling, and spirometry. C-RP serum and lung function were measured before
and after work. The dependent variable in this study is the serum levels of C-RP blood and pulmonary function.
While the independent variable is the level of personal endotoxin. Age, years of service, and the habit of
smoking is a confounding variable. Result: The average age of 40 years, 21-year working period, 75% light
smokers. After 8 hours the average levels of personal wood dust was 0.53 mg / m 3 and personal endotoxin
levels by an average of 55.50 EU / m 3. Workers who have increased C-RP as much (41.67%), with an average
of 0.1192 mg / L. Workers who experience a decrease in FVC as much (58.33%) and FEV 1 decline as much
(75%). Test results using Multiple Regression, there is no influence of the personal endotoxin levels with
elevated levels of serum C-RP and decreased lung function (p> 0.05). Conclusion: Endotoxin LPS in a sawmill
dust does not affect the increased levels of C-RP blood serum and lung function decline in workers.
Author Keywords: wood dust, endotoxin LPS, lung function, C -Reactive Protein(C-RP), wood workers
e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal
Original Language: English
Document Type: Article
Number of pages: 05
© Copyright 2014, All rights reserved.
Inventory Model for Variable Deteriorating Items with Two
Warehouses under Shortages, Time Varying Holding
Cost, Inflation and Permissible Delay In Payments
Raman Patel, Reena U. Parekh
Index: 10.183x/B380617
ESCI-MML: 183X-0308-0117
Abstract:
A deteriorating items inventory model with two warehouses under time varying holding cost and
linear demand under inflation and permissible delay in payments is developed. Shortages are allowed and
completely backlogged. A rented warehouse (RW) is used to store the excess units over the capacity of the own
warehouse. Numerical examples are provided to illustrate the model and sensitivity analysis is also carried out
for parameters.
Author Keywords: Deterioration, Inflation, Inventory, Permissible delay in payment, Shortages, Two-warehouse
e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal
Original Language: English
Document Type: Article
Number of pages: 12
© Copyright 2014, All rights reserved.
Effect of Exposure to Benzene Vapor against Immunoglobulin G
AndWorker Health Complaints at Gas Stations in Surabaya
ThroughPhenol Levels in Urine
Serlly Frida Drastyana, J. Mukono, HariantoNotopuro
Index: 10.183x/C381822
ESCI-MML: 183X-0308-0122
Abstract:
This study aims to analyse the effect of exposure to benzene vaporagainst immunoglobulin G
andworker health complaints at gas stations in Surabaya throughphenol levels In urine. The research methods
ofthis study is Analytic observationalwith crossectional study. The sample in the study group of 11 people
exposed to the gas station operator and unexposed groups of 11 administrative officers gas stations. Data
collection techniques with interviews, measurement of the levels of benzene in the air, the measurement of
phenol in urine, blood sampling and questionnaires. Independent variable is the concentration of benzene in the
air. Dependent Variable is the concentration of immunoglobulin G and health complaints. Variable between is
the phenol content in the urine. Age, nutritional status, length of service and length of employment
isconfounding variable. Result: The mean levels of benzene where the operator of 1.4454 ppm and
administrative space for 0.1234 ppm. Mean urine levels of phenol in the exposed group is 36, and the 6064 ppm
group was not exposed to 2.9773 ppm.Mean levels of immunoglobulin G in the exposed group was 1518.7
mg/dl and non-exposed groups at 1048.8 mg/dl. Most health complaints in the group is exposed and unexposed
nervous system disorders. By using linear regression, the levels of benzene in the air significantly affect the
levels of phenol in urine (p> 0.05) and phenol in urine affect the increase in immunoglobulin G (p <0.05).
Whereas phenol in urine no effect the health complaints using logistic regression. Conclusion: exposure to
benzene vapor affect the increase in immunoglobulin G and no effect health complaints.
Author Keywords: - exposure to benzene vapor, gas stations, phenol content in urine, immunoglobulin G,
health complaints.
e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal
Original Language: English
Document Type: Article
Number of pages: 05
© Copyright 2014, All rights reserved.
Implementation of Domestic Waste Water Quality Standards in
the Real Estate Gresik Area –East Java
(Based Environment Minister Republic Indonesia, Number 112/2003).
AgusJohanan, RirihYudhastuti, SupartoWijoyo
Index: 10.183x/D382327
ESCI-MML: 183X-0308-0127
Abstract:
This study includes observations on the waste management system in the real estate area of southern
Gresik, then sampling to test the water quality standards in laboratory waste Environmental Health Technique
Bureau Surabaya, both questionnaires and interviews with the developers to conduct Focus Group Discussion
with government, real estate developers and residents. Domestic sewage in the housing / real estate is mostly
done using the direct method of wastewater discharged directly into the river or temporarily housed in local
temporary disposal site. The results of laboratory tests on domestic wastewater generated housing average
domestic wastewater is around the threshold set by Ministerial Decree Environment No. 112 of 2003 but
exceeded the detection limit pollution. So it is still a potential source of contamination that could exceed the
upper threshold value corresponding MOE decree. This could happen due to the potential for the development
of housing for more habitable. The majority of the developers are not aware of the Environment Decree no. 112
of 2003. So that the disposal and management of industrial waste water is not in accordance with the prescribed
rules.
Author Keywords: - Domestic waste pollution, Environment Decree No.112 of 2003, The developer.
e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal
Original Language: English
Document Type: Article
Number of pages: 05
© Copyright 2014, All rights reserved.
Typical river transport for Banjarmasin based on the criteria of
the National Transportation System
Iphan F. Radam, Agus T. Mulyono, Bagus H. Setiadji
Index: 10.183x/E382837
ESCI-MML: 183X-0308-0137
Abstract:
In attempts to re-enable the river transport that is considered less desirable by users, a typical
approach/an approach related to the types of river transport that people expect. In this research, four types of
river transport are offered to the community which is expected to physically meet the criteria of the (Indonesian)
National Transportation System. Analysis of the selected priority level using an approach of the AHP method to
relative and absolute measurement was carried out. The results of the analysis find that people generally tend to
expect the typical river transport with the following criteria: catamaran type, the entry/exit can be from the front
and the rear, the sides of the ship are flexible and can be open or closed, passengers can stand up inside the
vehicle, the ship can load bikes, and the lower position of the passengers is above the surface of the water. In
terms of the fulfillment of the (Indonesian) National Transportation System criteria, safety is the most dominant
criterion to be considered (18.87%), followed by the criterion of security (16.45%), the utilization criterion
(12.49%), and the comfort criterion (11.53%). While the criteria for a low level of pollution and capacities are
the lowest criteria that influence the selected choice.
Author Keywords: AHP method, the National Transportation System, typical river transport
e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal
Original Language: English
Document Type: Article
Number of pages: 10
© Copyright 2014, All rights reserved.
The Satisfaction Analysis for the Performance of Public
Transport Urban Areas
Adris.A.Putra Jinca, M. Yamin Bambang Riyanto, Agus Taufik Mulyono
Index: 10.183x/F383844
ESCI-MML: 183X-0308-0144
Abstract:
The development of urban areas cause a variety of problems and challenges as a direct impact of the
development conditions of the region, including in terms of planning adequate transportation system, which is
able to meet the needs of urban population movements, not only in terms of the amount of means of transport,
but also should pay attention to and improve performance of public transport services, strategies to improve the
performance of public transport in satisfaction of public transport users, requires an understanding of the
attitudes of public transport users, knowledge of user behavior will provide optimal results to improve the
performance of public transport according to expectations and interests of public transport users.
This study aims to investigate the performance of public transport services, knowing the satisfaction of
public transport users in terms of aspects of interest or societal expectations, determine the effect of the level of
satisfaction of public transport services on the performance of public transport. This research method is a
method of qualitative research, data analysis is used to determine the performance of public transport use
Importance Performance Analysis (IPA) and know the satisfaction of users of public transport using the
Customer Satisfaction Index (CSI), to examine the effect of satisfaction on the performance of public transport
using Structural Equation Modeling (SEM).
The results showed that the performance of public transport remains low in providing services to the
users of public transport. The main priority of the expectations or interests of public transport users to get
treatment or improvement of public transport services is an indicator of accessibility, integration, capacity,
smooth and fast, convenient, safety, easy, timely, orderly, efficient. Based on the calculation, the CSI value of
48.19% or 0.48 based on criteria CSI values were in the range from 0.35 to 0.50 (less satisfied) this means that
the public transport user satisfaction index of the performance of public transport are less satisfied with the
service transport general. Based on the results of SEM analysis of the influence of public transport user
satisfaction (Y) on the performance of public transport (X) derived a mathematical equation Y = 0,873X + 0.022
indicates that the public transport user satisfaction has a positive and significant effect on the performance of
public transport, any increase in public transport performance indicators it will also influence the increase in
satisfaction of users of public transport.
Author Keywords: Public transportation, performance, satisfaction, expectations and interests.
e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal
Original Language: English
Document Type: Article
Number of pages: 07
© Copyright 2014, All rights reserved.
Pattern Recognition in Eye Movement Validation
Fatima Isiaka
Index: 10.183x/G384555
ESCI-MML: 183X-0308-0155
Abstract:
The Job Shop scheduling problem is one of the hardest combinatorial optimisation problems in
various industrial environments. It consists of several jobs each with one or more operations, to be allocated to a
set of machines with a view to minimise the makespan. In this paper, we begin by describing the Job Shop
scheduling problem and the evolutionary algorithm used to solve the machine allocation problem. We then,
propose additional genetic operators (random selection of chromosomes to initialise the population, measuring
the initial population fitness to identify good chromosomes, cloning to improve survival probability) to enhance
the existing genetic algorithm in terms of getting a shorter makespan in less computational time. Finally, we
investigate the effect of population size, crossover rate and mutation rate on the makespan for both the existing
genetic algorithm and the enhanced genetic algorithm. Our result shows that the enhanced genetic algorithm
produce the optimal makespan in a shorter genetic evolution than existing genetic algorithm.
Author Keywords: Evolutionary Algorithm (EA), Genetic Algorithm (GA), Job Shop Scheduling Problem (JSSP),
Non-deterministic polynomial time (NP).
e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal
Original Language: English
Document Type: Article
Number of pages: 11
© Copyright 2014, All rights reserved.
Discharge Variation Effect for Iron and Manganese
Concentration Reduction Efficiency in Dug Well Water
By The Sand Filter Technique at Mulyorejo Utara Surabaya
Annisa N. F, Mas Udi Prihanto, Tiyar Junaedi, Tofan Agung Eka Prasetya
Index: 10.183x/H385660
ESCI-MML: 183X-0308-0160
Abstract:
Ground water quality problems that used the public was less qualified as drinking water. Ground
water usually contains iron (Fe) and manganese (Mn) on high level. They were caused the yellow color of the
water into the tub wall and yellow spots on clothes. This research purposed to determine the influenced of
flowrate variance in removal of Fe and Mn from groundwater used activated sand filtration technique. Variance
of flowrate as independent variable and removal of Fe and Mn as dependent variable. This research used three
variance of flowrate, they were 15 ml/minute, 30 ml/minute, and 60 ml/minute by activated sand thickness was
110 cm. Three of flowrate variance and KMnO4 was used for activating the sand media. Data was analyze by
descriptive analysis used Canberra Matrix and Group Average Clustering Methods. This research result was the
decreasing of flowrate would eliminated Fe and Mn. Efficiency removal of Fe with the variance of flowrate 15
ml/minute, 30 ml/minute, and 60 ml/minute, respectively were 53.98%; 53.48%; 45.39%. Removal of Mn
efficiency with the variance of flowrate 15 ml/minute, 30 ml/minute, and 60 ml/minute respectively were
97.29%; 96.91%; 88.96%. The best effect to remove Mn was on flowrate 15 ml/minute.
Author Keywords: activated sand filtration, flowrate, removal of Fe and Mn.
e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal
Original Language: English
Document Type: Article
Number of pages: 05
© Copyright 2014, All rights reserved.
Vector Control Program Evaluation Aedesaegypti in Port Health
Office Class II Banjarmasin, South Kalimantan
(Case Study Working Area Seaport Banjarmasin)
Totok Purwanto, Muhammad Pahruddin, Ghafarul Wududu, Deddy Setya N,
R. Azizah, SetyaHaksama, Ririh Yudhastuti, Lilis Sulistyorini
Index: 10.183x/I386165
ESCI-MML: 183X-0308-0165
Abstract:
Activity at the port with such a high mobilization, automatically spreading disease is more rapid and
diverse. Seaport working area CTF class II Banjarmasin, South Kalimantan is the working area House Index
(HI) is the highest in the buffer area of more than 1%. HI in the buffer area> 1% would be a potential for
breeding of Aedesaegypti mosquito which can result in the transmission of Dengue Hemorrhagic Fever (DHF).
Data in 2013 in the region of Seaports Banjarmasin number of cases of Dengue Fever (DD) there are 22 people
and there are 2 people DHF. This research is descriptive sampling technique used was purposive sampling
technique, the sample size of 66 people. The data obtained for the primary and secondary, to identify and
analyze resources (labor, cost, means, methods) and the activities of planning, implementation, supervision and evaluation, and the results of vector control activities in communities and the conduct of the larvae of Aedesaegypti in the perimeter area and buffer area. Measurements conducted document analysis, questionnaire,interview and observation. The results showed the lack of power and the number of functional training in the vector Aedesaegypti control program, not maximal implementation of vector control programs namely Aedesaegypti mosquito larvae eradication (PSN) only through surveys larvae, while surveys of eggs and adult mosquito surveys are not conducted. Implementation of counseling conducted from house to house, without involving the relevant stakeholders such as community leaders, RT, health center and the port and the low implementation of vector Aedesaegypti control program in the community in the Work Area Seaports Banjarmasin is seen with HI> 1% in buffer area, and attitudes towards the implementation of the program by the Aedesaegypti vector control officers are still not maximized..
Author Keywords: Evaluation of the program, House Index.
e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal
Original Language: English
Document Type: Article
Number of pages: 05
© Copyright 2014, All rights reserved.
Effect Inhaling of Limestone Dust Exposure on Increased Level of
IL-8 Serum and Pulmonary Function Decline to Workers of
Limestone Mining Industry
Safrudin Tolinggi, Moh. Rivai Nakoe, Inne Ariane Gobel, James Sengke,
Soedjajadi Keman, I Ketut Sudiana, Ririh Yudhastuti, Mukono, R. Azizah
Index: 10.183X/J386672
ESCI-MML: 183X-0308-0172
Abstract:
This aim of this study were to analyze the effect of exposure by limestone dust for increasing of IL-8
serum and pulmonary function decline to workers of limestone mining industry in Wangun Village, Palang
District, Tuban Regency after working for 8 hours (cross shift).The Method was analytical observation with
prospective longitudinal study. Before and after works for measuring of IL-8 serum increase and pulmonary
function decline between population exposed by limestone dust (study group) and population not exposure by
limestone dust (comparison group). Data was collecting on 18 respondents consist of 9 study samples workers at
mining industry in Wangun Village and 9 samples working at semanding district office were taken randomly
and inclusion criteria had been matched with the study group. Result showed inhaling of limestone dust
exposure was significantly to increasing level of IL-8 serum (p = 0.026) but it didn't cause decline on
pulmonary function. Physical activity factors and differences of individual immunity can influence the
symptoms of respiratory disease caused by increased IL-8 serum so. the decrease in pulmonary function after 8
hours of work (cross-shift) does not occur.
To require use of Personal Protective Equipment (PPE), Air Purifying Respirator Non power types and
use a wet method on mining activities. Be required a regular monitoring for evaluate worker's pulmonary
function changes by the owner of mining.
Author Keywords: Limestone Dust, pulmonary function, IL-8 serum.
e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal
Original Language: English
Document Type: Article
Number of pages: 07
© Copyright 2014, All rights reserved.
Version-2
Mining Materializations In Dissimilar Stages
Sapram Choudaiah
Index: 10.183x/A380110
ESCI-MML: 183X-0308-0210
Abstract:
Teradata provide the foundation to give a company the authority to grow, to complete in today's
dynamic marketplace, to achieve the goal of ―transforming transactions into Relationships‖ and to progress the
business by accomplishment answer to a new generation of questions. Teradata's scalability allows the system
to grow as the business grows, from gigabytes to terabytes and beyond. Teradata's unique technology has been
proven at customer sites across industries and around the world. Teradata is a large database server that
accommodates multiple client applications making inquiries against it concurrently. Various client platforms
access the database through network connection across an IBM mainframe channel connection. The ability to
manage large amounts of data is accomplished using the concept of parallelism, where in many individual
processors perform smaller tasks concurrently to accomplish an operation against a huge repository of data. In
Teradata mining ―Teradata miner tool‖ analyze the data in efficient meaner, it produce the reports and graphs by
using the Teradata operations.
Author Keywords: Scalability, parallelism, Teradata miner, Repositories, Terabytes of data
e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal
Original Language: English
Document Type: Article
Number of pages: 10
© Copyright 2014, All rights reserved.
The Effect of Institution Efficiency in Developing
Albanian Economy
Ermir Shahini
Index: 10.183x/B381116
ESCI-MML: 183X-0308-0216
Abstract:
On the basis of the contribution of the Bank of Albania, the report examines the development in the
economy of Albania. The report emphasizes on the role of banking system in the development of an economy.
The efficiency of the financial institutions of the country was an important part of the Albanian economy. The
global financial crisis had a gradual impact on the economy of Albania, affecting all the factors that form the
economy. The major issue for the country was the financial instability, which was eventually having an impact
on the working of the banking system of Albania. Using the recent years results derived from researches and
studies, the report has detailed the measures taken by the Albanian bank with the support of the government to
bring stability in the economy as well as develop the economy.
Author Keywords: Bank efficiency, economic growth, financial development, macroeconomic stability
e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal
Original Language: English
Document Type: Article
Number of pages: 06
© Copyright 2014, All rights reserved.
Accident Analysis on Production Section of Pt.X Based On
Management System and Specific Control Factor
(A Case Study Of Crushed By C-Canal)
Tofan Agung E.P, Eko Mardiyanto, Octavianus Hutapea, Tri Martiana, Linda Dewanti
Index: 10.183x/C381721
ESCI-MML: 183X-0308-0221
Abstract:
PT. X as a manufactory company was have high risk of accident. Several accident had been
happened in PT.X were first aid injury and loss time accident. Some investigations and follow-up had done but
similar accidents still happen. The purpose of this study was to identify the causes of the accident (crushed by ccanal)
based on management system and spesific control factor. The qualitative approaches was used by a
standard mini-MORT as a data collection tool and 5 whys method to explore the root causes. The results showed
the cause of the accident was due to organizational influences. Influence of the organization, such as resource
management, organizational climate and organizational process. This related to the allocation of limited
resources, both human and financial, and material. The Conclusion of this research was the elements of the
management system and spesific control factor were inadequate, and the root cause of the accident was on
organizational Influences. The company had to consider the approach to safety behavior that occupational safety
and health programs by an awareness of the whole management to workers.
Author Keywords: - management system factor, spesific control factor, organizational influences, mini MORT, 5 whys
e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal
Original Language: English
Document Type: Article
Number of pages: 05
© Copyright 2014, All rights reserved.
Analysis of Management Commitment in an Effort To Increase Ohs Communication at Pt. Aneka Gas Industry Region V East Java
Tiara Ayu D, Agus Yulianto, Tjipto Suwandi, Hari Basuki
Index: 10.183x/D382228
ESCI-MML: 183X-0308-0228
Abstract:
The aims of this study was to investigated the elements of management commitment to improve
OHS communication with individual commitment and OHS knowledge as an intervening variable. This study
used a quantitative method by cross-sectional and observational study. Population of this study were 160
workers using proportionate stratified random sampling technique by the sample size were 115 workers. Data
were collected using the interview with questionnaire and observation checklist. The result of this study showed
that there was correlation between OHS knowledge, management's commitment, The respondents' education
characteristics (elementary and junior high) and OHS communication. Variables of OHS knowledge,
management commitment, and education were able to explain the variation in OHS communication, it was
about 72,1%, while 27,9% of variation were explained by other variables. In associated with other supporting
factors, the OHS communication should be enhanced further in open dialog on a scheduled period or through
visual media publication or videos. The most effective to do was giving an example to the line workers. In
addition, it was necessary to develop other OHS programs to support the SHMS implementation optimally.
Author Keywords: - Management System, Management Commitment, OHS Communication.
e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal
Original Language: English
Document Type: Article
Number of pages: 07
© Copyright 2014, All rights reserved.
Factors Related To Cummulative Trauma Disorder Lamentation to Employees of Pt Pertamina (Persero) Upms VII Makassar
Friska ayu, Anik Widyastutik, Akhmad Imron
Index: 10.183x/E382933
ESCI-MML: 183X-0308-0233
Abstract:
Cumulative Trauma Disorder (CTD) as one of Musculoskeletal Disorder (MSDs) was often caused
by using monoton position on working especially on upper limb. The CTD symptoms may usually appear on the
monotone job, unnatural work behavior, the over use of the body motion. The aims of this study was identifying
the factors related to Cumulative Trauma Disorder lamentation to employees of PT Pertamina (Persero) UPMS
Makassar. This analityc observational study used cross sectional methods with the population all employees.
Sampling technique used exhaustive sampling by sample size were 35 employees. Data were collected used
Nordic body map and Rapid Upper Limb Assesment (RULA) and analized by chi square test. The result showed
that age, working time and body position were correlated to CTD. It suggested to used ergonomic body
positions when working by doing some various motions of the body while the employees did their jobs and for
next research to measure CTD lamentation by using some medical equipments
Author Keywords: cumulative trauma disorder, employees characteristic, working time, body position
e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal
Original Language: English
Document Type: Article
Number of pages: 05
© Copyright 2014, All rights reserved.
Susmiati, Samik Munawar, Y. Denny Ardyanto, Lilis Sulistyorini
Index: 10.183x/F383437
ESCI-MML: 183X-0308-0237
Abstract:
The aims of this study were analyze the factor influencing the lung function to the furniture company
workers at UD. Suro Lestari and making the Local Exhaust Ventilation design. This research was conducted
with the use of observational method with cross-sectional research design. This research used simple random
sampling technique by the sample size were 28 workers. The data was collected by interview, observation and
easuring of height and weight, the dust degree and the lung function. Data was analyzed by chi square and
logistic regression test. The results showed that the dust degree in the finishing location was 17,45 mg/Nm3 and
3,02 mg/Nm3 in other locations of workplace. The lung function was measured use spirolab III ver. 2,7 showed
that 11 workers (39,3%) had abnormal lung function and 17 workers (60,7%) had normal lung function. The
Fisher's test showed there was correlation between the wooden dust degree (p=0,008), work duration (p=0,019)
and the use of masker (p=0,003) to the lung function. The logistic regression test showed that the wooden dust
exposure, work duration, and the use of masker influenced to the lung function. Using local exhaust ventilation
in the workplace can reduce the wooden dust concentration.
Author Keywords: - Employee, dust, local exhaust ventilation, lung function.
e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal
Original Language: English
Document Type: Article
Number of pages: 04
© Copyright 2014, All rights reserved.
Performance of corrosion inhibitors based on n-butylamine in
protection of carbon steel in hydrochloric acid solution
Fernando B. Mainier, Thais Mortimer B. Utsch Moreira,
Antonio Carlos Moreira da Rocha
Index: 10.183x/G383842
ESCI-MML: 183X-0308-0242
Abstract:
Corrosion inhibitors are chemicals substances that, when added in small concentration to an
environment prevent or impede the development of corrosion reactions. They are used in various segments of
the oil industry, showing great efficiency in internal protection against the corrosion of pipelines, gas pipelines
and boilers, in the area of refining, production of petroleum, water injection, in acidification, secondary recovery
and drilling fluids. To evaluate the performance of substances with the potential to inhibit the process of
corrosion in acidic solutions, and to measure the loss of mass, carbon steel coupons were manufactured and
immersed in hydrochloric acid solutions 10 and 15 % (by mass), in the range of 40 to 60 °C and using nbutylamine
solutions as corrosion inhibitors. Gravimetric laboratory tests show efficiencies
of the addition of n-butylamine (1.5 g/L) in anti-corrosion protection for carbon steel coupons immersed in
hydrochloric acid solution (10 and 15 %) were of the order of 50%.
Author Keywords: Corrosion, Corrosion inhibitors, n-butylamine, acidification, hydrochloric acid.
e-ISSN: 2319-183X, p-ISSN: 2319-1821 Source Type: Journal
Original Language: English
Document Type: Article
Number of pages: 05
© Copyright 2014, All rights reserved.
