Displaying publications 121 - 140 of 751 in total

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  1. Behavior-based safety program for process industries
    Rashid MI, Athar M, Noor F, Hussain A
    Int J Occup Saf Ergon, 2023 Dec;29(4):1440-1450.
    PMID: 36221985 DOI: 10.1080/10803548.2022.2135282
    Objectives. This article describes the reduction of unsafe behaviors observed at a fertilizer complex by implementation of a behavior-based safety (BBS) program via a behavior observation form developed by a multidisciplinary team. Methods. Six observation categories, i.e., position of people, reaction of people, personal protective equipment (PPE), tools used, operating procedures and housekeeping, are used to monitor safe and unsafe behaviors for a period of 18 months. Results. Safe behaviors increased from 57 to 70% and unsafe behaviors reduced from 40 to 26%. Behaviors of employees working in various sections of fertilizer complex such as ammonia, urea, utility, bagging/shipping and workshop were also observed. Non-compliance with PPE, housekeeping and standard operating procedures was also monitored in individual sections. Non-operational areas including the administration block, housing colony, maintenance workshop, warehouse, fire station and electrical substation were also observed. Among these, the maximum unsafe behaviors are for the housing colony and minimum for the electrical substation. Conclusion. It has been concluded that working on the housing colony, administration block and fire station areas will address 74% unsafe behaviors of non-operational areas. For practical applications, worldwide industries can implement this BBS program to enhance BBS, thus reducing unsafe behaviors and increasing employee morale.
    Matched MeSH terms: Construction Industry*
  2. Fulltext Spray Drying for the Encapsulation of Oils-A Review
    Mohammed NK, Tan CP, Manap YA, Muhialdin BJ, Hussin ASM
    Molecules, 2020 Aug 26;25(17).
    PMID: 32858785 DOI: 10.3390/molecules25173873
    The application of the spray drying technique in the food industry for the production of a broad range of ingredients has become highly desirable compared to other drying techniques. Recently, the spray drying technique has been applied extensively for the production of functional foods, pharmaceuticals and nutraceuticals. Encapsulation using spray drying is highly preferred due to economic advantages compared to other encapsulation methods. Encapsulation of oils using the spray drying technique is carried out in order to enhance the handling properties of the products and to improve oxidation stability by protecting the bioactive compounds. Encapsulation of oils involves several parameters-including inlet and outlet temperatures, total solids, and the type of wall materials-that significantly affect the quality of final product. Therefore, this review highlights the application and optimization of the spray drying process for the encapsulation of oils used as food ingredients.
    Matched MeSH terms: Food Industry*
  3. Magnitude of illicit cigarette trade in Malaysia: empirical evidence compared with industry studies
    Bui WKT, Ross H, Mohamed Nor N
    Tob Control, 2024 Apr 19;33(3):341-345.
    PMID: 36207128 DOI: 10.1136/tc-2021-057210
    BACKGROUND: The tobacco industry contends that the illicit market in Malaysia occupies 62.3% of the total cigarette market. If this is true, Malaysia has one of the largest shares of illicit cigarettes in the world.

    METHODS: This study employs a rigorous gap analysis to measure the size of the illicit cigarette trade in Malaysia and compare it with the industry estimates.

    FINDINGS: We found that in 2019, the illicit cigarette market share ranged from 38.2% to 52.5%, depending on assumptions with respect to consumption under-reporting, which is substantially less than the industry estimates. We found that the size of the illicit cigarette market was not driven by higher excise tax: doubling the excise tax rate from RM0.20 to RM0.40 per stick in November 2015 resulted in only a slight increase in the illicit cigarette market share and no increase in the number of illicit cigarettes in the market.

    CONCLUSIONS: Therefore, a reduction in cigarette excise taxes, as suggested by the industry, will not solve the problem of illicit cigarette trade in Malaysia. Instead, the government should ratify the Framework Convention on Tobacco Control's Protocol to Eliminate Illicit Trade in Tobacco Products and implement the strategies outlined in the protocol.

    Matched MeSH terms: Tobacco Industry*
  4. Thermoseparating aqueous two-phase systems: Recent trends and mechanisms
    Leong YK, Lan JC, Loh HS, Ling TC, Ooi CW, Show PL
    J Sep Sci, 2016 Feb;39(4):640-7.
    PMID: 26447739 DOI: 10.1002/jssc.201500667
    Having the benefits of being environmentally friendly, providing a mild environment for bioseparation, and scalability, aqueous two-phase systems (ATPSs) have increasingly caught the attention of industry and researchers for their application in the isolation and recovery of bioproducts. The limitations of conventional ATPSs give rise to the development of temperature-induced ATPSs that have distinctive thermoseparating properties and easy recyclability. This review starts with a brief introduction to thermoseparating ATPSs, including its history, unique characteristics and advantages, and lastly, key factors that influence partitioning. The underlying mechanism of temperature-induced ATPSs is covered together with a summary of recent applications. Thermoseparating ATPSs have been proven as a solution to the demand for economically favorable and environmentally friendly industrial-scale bioextraction and purification techniques.
    Matched MeSH terms: Industry
  5. Fulltext Future climate effects on suitability for growth of oil palms in Malaysia and Indonesia
    Paterson RR, Kumar L, Taylor S, Lima N
    Sci Rep, 2015;5:14457.
    PMID: 26399638 DOI: 10.1038/srep14457
    The production of palm oil (PO) is highly profitable. The economies of the principal producers, Malaysia and Indonesia, and others, benefit considerably. Climate change (CC) will most likely have an impact on the distribution of oil palms (OP) (Elaeis guineensis). Here we present modelled CC projections with respect to the suitability of growing OP, in Malaysia and Indonesia. A process-oriented niche model of OP was developed using CLIMEX to estimate its potential distribution under current and future climate scenarios. Two Global Climate Models (GCMs), CSIRO-Mk3.0 and MIROC-H, were used to explore the impacts of CC under the A1B and A2 scenarios for 2030, 2070 and 2100. Decreases in climatic suitability for OP in the region were gradual by 2030 but became more pronounced by 2100. These projections imply that OP growth will be affected severely by CC, with obvious implications to the economies of (a) Indonesia and Malaysia and (b) the PO industry, but with potential benefits towards reducing CC. A possible remedial action is to concentrate research on development of new varieties of OP that are less vulnerable to CC.
    Matched MeSH terms: Industry
  6. The effects of perceived organizational support, perceived supervisor support and perceived co-worker support on safety and health compliance
    Puah LN, Ong LD, Chong WY
    Int J Occup Saf Ergon, 2016 Sep;22(3):333-9.
    PMID: 27049935 DOI: 10.1080/10803548.2016.1159390
    Although knowledge is cumulating, very little is known about the effects of various sources of support on safety and health compliance. This study goes beyond previous research by investigating the relationships among perceived support from organizations, supervisors and co-workers, and employees' safety and health compliance behaviour at chemical and petroleum process plants. The results of this study show that the support from organizations, supervisors and co-workers was significantly related to employees' safety and health compliance. Also, the findings reveal that perceived supervisor support has the strongest influence in ensuring employees' safety and health compliance behaviour.
    Matched MeSH terms: Oil and Gas Industry/organization & administration; Chemical Industry/organization & administration
  7. Fulltext Revisiting consumer brand preference sustaining strategy through co-creation corporate social responsibility in the hospitality industry
    Siti Hajar Md. Jani, Irwan Ibrahim, Afizan Amer, Nordayana Zulkifli, Mumtaz Ahmad
    Journal of Academia Universiti Teknologi MARA Negeri Sembilan, 2019;7(101):117-125.
    MyJurnal
    When a hotel firm loses their existing customers, the organization needs to draw new customers. This is to maintain their market share in the industries. However, in order to attract and capture new customers, it may need higher cost on advertising and promotional activities. Brand preference is generally used to quantify the effect of brand equity that will lead to brand awareness and customers brand loyalty. Therefore, this research is conducted to examine how co-creation corporate social responsibility (CSR) influence brand preference sustaining strategy in the hospitality industry. The study involved three main variables to distinguish the effect of environment, society and stakeholders (CSR) base program on consumer brand preferences. This research is conducted at one of the hotels in Kuala Lumpur City. The scope of the research focusing on the impact of co-creation (CSR) programs towards consumer brand preference. The respondents are among the walk-in consumer the hotel. Result of the study found that there is significant impact of the three base (CSR) programs on consumer brand preference in the hotel industries. This study also built up a useful insight to the industry players and (CSR) research to gain knowledge on the future development of co-creation CSR programs which promotes low cost and high impact result.
    Matched MeSH terms: Industry
  8. Fulltext Recent Advances of Graphene-Derived Nanocomposites in Water-Based Drilling Fluids
    Ikram R, Mohamed Jan B, Vejpravova J, Choudhary MI, Zaman Chowdhury Z
    Nanomaterials (Basel), 2020 Oct 11;10(10).
    PMID: 33050617 DOI: 10.3390/nano10102004
    Nanocomposite materials have distinctive potential for various types of captivating usage in drilling fluids as a well-designed solution for the petroleum industry. Owing to the improvement of drilling fluids, it is of great importance to fabricate unique nanocomposites and advance their functionalities for amplification in base fluids. There is a rising interest in assembling nanocomposites for the progress of rheological and filtration properties. A series of drilling fluid formulations have been reported for graphene-derived nanocomposites as additives. Over the years, the emergence of these graphene-derived nanocomposites has been employed as a paradigm to formulate water-based drilling fluids (WBDF). Herein, we provide an overview of nanocomposites evolution as engineered materials for enhanced rheological attributes in drilling operations. We also demonstrate the state-of-the-art potential graphene-derived nanocomposites for enriched rheology and other significant properties in WBDF. This review could conceivably deliver the inspiration and pathways to produce novel fabrication of nanocomposites and the production of other graphenaceous materials grafted nanocomposites for the variety of drilling fluids.
    Matched MeSH terms: Oil and Gas Industry
  9. Fulltext Development of Laser Drilling Strategy for Thick Carbon Fibre Reinforced Polymer Composites (CFRP)
    Ahmad Sobri S, Heinemann R, Whitehead D
    Polymers (Basel), 2020 Nov 12;12(11).
    PMID: 33198377 DOI: 10.3390/polym12112674
    Composites from carbon fibre reinforced polymers (CFRPs) play a significant role in modern manufacturing. They are typically used in aerospace and other industries that require high strength-to-weight ratios. Composite machining, however, remains a challenging job and sometimes is hampered by poor efficiency. Despite considerable research being conducted over the past few years on the machining of composite materials, the material nevertheless suffers from delamination, fibre loss, and imperfect finishing of the fuselage. Laser technology is becoming increasingly popular as an alternative approach to cutting and drilling composites. Experiments have been conducted with a CFRP thickness of 25.4 mm using fibre laser to test the effect of the machining parameters on the primary performance measurements. In this study, different machining criteria are used to assess the fibre laser ability of thick CFRP composites for drilling operation. The experimental findings revealed that a fibre laser is capable of penetrating a thick CFRP to a depth of 22 mm by using a novel drilling procedure.
    Matched MeSH terms: Industry
  10. Fulltext A review: production and postharvest management of Volvariella Volvacea
    Nur Sakinah, M.J., Misran, A., Mahmud, T.M.M., Abdullah, S.
    International Food Research Journal, 2019;26(2):367-376.
    MyJurnal
    Volvariella volvacea (Family: Plutaceae), also more commonly known as paddy straw mushroom, is an edible mushroom with high nutritional content. It is usually cultivated using lignocellulosic-based materials for enhanced production. However, V. volvacea is highly perishable and easily deteriorates in terms of quality and appearance after harvest. The present paper thus aimed to provide a critical review on aspects related to the production of V. volvacea using palm oil empty fruit bunch as cultivation substrate. The different stages of V. volvacea development are also highlighted. The present review also provides some information on the preservation techniques and appropriate postharvest management in extending V. volvacea shelf life to further boost the paddy straw mushroom industry
    Matched MeSH terms: Industry
  11. Fulltext Maintenance and physical asset management issues in project commissioning
    Ahmad Fuad Ab Ghani, Azrin Ahmad, Nor Salim Muhammad, Reduan Mat Dan, Rustamreen Jenal
    Malaysian Journal of Applied Sciences, 2018;2(2):10-28.
    MyJurnal
    This study describes the review on maintenance related issues during design and construction stage
    within construction industry. The paper highlights the causes and errors made during design and
    construction stage and their impact during the operation/production/occupancy stage as well as the
    maintenance costs associated with it. The study identifies the mistakes in the working processes within
    design and construction stage leading to the errors that affect the durability, performance, reliability,
    maintainability, availability and safety of the systems. The paper presents a comprehensive review of
    the published literatures, journals, technical papers in the related areas in the construction field. The
    review highlights the new approaches and decision framework which link the designers and
    construction personnel that could reduce the errors and defects in construction which then lead to
    maintenance issues and asset management. The factors of accessibility, materials, design and
    documentation standardization have been discussed thoroughly for better understanding in improving
    maintenance and physical asset management in project commissioning.
    Matched MeSH terms: Construction Industry
  12. Dataset on the influence of software development agility on software firms' performance in Bangladesh
    Sadia F, Mahmud I, Dhar E, Jahan N, Hossain SS, Zaidi Satter AKM
    Data Brief, 2019 Apr;23:103741.
    PMID: 31372407 DOI: 10.1016/j.dib.2019.103741
    The article identifies the relationship among different agile software development approaches such as response extensiveness, response efficiency, team autonomy, team diversity, and software functionality that software teams face difficult challenges in associating and achieving the right balance between the two agility dimensions. This research strategy, in terms of quantity, is descriptive and correlational. Statistical analysis of the data was carried out, using SmartPLS 3.0. Statistical population, consist of employees of software industries in Bangladesh, who were engaged in 2017 and their total number is about 100 people. The data show that the response extensiveness, response efficiency, team autonomy, team diversity, and software functionality have impact on software development agility and software development performance.
    Matched MeSH terms: Industry
  13. Fulltext Improving layout and workload of manufacturing system in small and medium enterprise (SME) using delmia quest
    Dzullijah Ibrahim, Alifah Alyana, Hasrul Hafizuddin Hassim, Yusli Yaakob, Hamid Yusuf
    ESTEEM Academic Journal, 2018;14(1):83-92.
    MyJurnal
    A facility layout can be defined as an arrangement of the equipment area in the
    industry or organization of the factory. The main objective of this project was to
    improve the existing layout in SMEs using DELMIA QUEST simulation. In this
    project, new layouts are proposed to reduce the waiting time in a production
    line and increase the productivity. This study focused on packaging production
    line of a coffee manufacturing company located in Tasek Gelugor Pulau
    Pinang. The problems identified in this production line are limited working
    space, some processes overlap and are stuck due to high demands of the
    products. This results in high lead time. The existing layout was studied and
    simulated to improve certain parameters such as labour, machines, and shape
    of the layout. The workstations were repositioned in the proposed layout before
    undergoing simulation process using DELMIA QUEST software. From the
    simulation results, the significant improvement was determined and the best
    layout was chosen in terms of machines utilization and total output. Based on
    this, a new layout is proposed to increase the productivity capacity and to meet
    customers’ demands. Simulation data of the proposed layout showed its
    productivity had increased to approximately 41.5%.
    Matched MeSH terms: Industry
  14. Single-machine Integrated Production Preventive Maintenance Scheduling: A Simheuristic Approach
    Nurul Nadiah Abdul Halim, S. Sarifah Radiah Shariff, Siti Meriam Zahari
    MATEMATIKA, 2020;36(2):113-126.
    MyJurnal
    Preventive maintenance (PM) planning becomes a crucial issue in the real world of the manufacturing process. It is important in the manufacturing industry to maintain the optimum level of production and minimize its investments. Thus, this paper focuses on multiple jobs with a single production line by considering stochastic machine breakdown time. The aim of this paper is to propose a good integration of production and PM schedule that will minimize total completion time. In this study, a hybrid method, which is a genetic algorithm (GA), is used with the Monte Carlo simulation (MCS) technique to deal with the uncertain behavior of machine breakdown time. A deterministic model is adopted and tested under different levels of complexity. Its performance is evaluated based on the value of average completion time. The result clearly shows that the proposed integrated production with PM schedule can reduce the average completion time by 11.68% compared to the production scheduling with machine breakdown time.
    Matched MeSH terms: Manufacturing Industry
  15. Fulltext Classification of botnet attacks in IoT smart factory using honeypot combined with machine learning
    Lee S, Abdullah A, Jhanjhi N, Kok S
    PeerJ Comput Sci, 2021;7:e350.
    PMID: 33817000 DOI: 10.7717/peerj-cs.350
    The Industrial Revolution 4.0 began with the breakthrough technological advances in 5G, and artificial intelligence has innovatively transformed the manufacturing industry from digitalization and automation to the new era of smart factories. A smart factory can do not only more than just produce products in a digital and automatic system, but also is able to optimize the production on its own by integrating production with process management, service distribution, and customized product requirement. A big challenge to the smart factory is to ensure that its network security can counteract with any cyber attacks such as botnet and Distributed Denial of Service, They are recognized to cause serious interruption in production, and consequently economic losses for company producers. Among many security solutions, botnet detection using honeypot has shown to be effective in some investigation studies. It is a method of detecting botnet attackers by intentionally creating a resource within the network with the purpose of closely monitoring and acquiring botnet attacking behaviors. For the first time, a proposed model of botnet detection was experimented by combing honeypot with machine learning to classify botnet attacks. A mimicking smart factory environment was created on IoT device hardware configuration. Experimental results showed that the model performance gave a high accuracy of above 96%, with very fast time taken of just 0.1 ms and false positive rate at 0.24127 using random forest algorithm with Weka machine learning program. Hence, the honeypot combined machine learning model in this study was proved to be highly feasible to apply in the security network of smart factory to detect botnet attacks.
    Matched MeSH terms: Manufacturing Industry
  16. Fulltext Applications of Additively Manufactured Tools in Abrasive Machining-A Literature Review
    Deja M, Zieliński D, Kadir AZA, Humaira SN
    Materials (Basel), 2021 Mar 09;14(5).
    PMID: 33803424 DOI: 10.3390/ma14051318
    High requirements imposed by the competitive industrial environment determine the development directions of applied manufacturing methods. 3D printing technology, also known as additive manufacturing (AM), currently being one of the most dynamically developing production methods, is increasingly used in many different areas of industry. Nowadays, apart from the possibility of making prototypes of future products, AM is also used to produce fully functional machine parts, which is known as Rapid Manufacturing and also Rapid Tooling. Rapid Manufacturing refers to the ability of the software automation to rapidly accelerate the manufacturing process, while Rapid Tooling means that a tool is involved in order to accelerate the process. Abrasive processes are widely used in many industries, especially for machining hard and brittle materials such as advanced ceramics. This paper presents a review on advances and trends in contemporary abrasive machining related to the application of innovative 3D printed abrasive tools. Examples of abrasive tools made with the use of currently leading AM methods and their impact on the obtained machining results were indicated. The analyzed research works indicate the great potential and usefulness of the new constructions of the abrasive tools made by incremental technologies. Furthermore, the potential and limitations of currently used 3D printed abrasive tools, as well as the directions of their further development are indicated.
    Matched MeSH terms: Industry
  17. Fulltext A Critical Review on the Properties and Applications of Sulfur-Based Concrete
    Fediuk R, Mugahed Amran YH, Mosaberpanah MA, Danish A, El-Zeadani M, Klyuev SV, et al.
    Materials (Basel), 2020 Oct 22;13(21).
    PMID: 33105753 DOI: 10.3390/ma13214712
    The incessant demand for concrete is predicted to increase due to the fast construction developments worldwide. This demand requires a huge volume of cement production that could cause an ecological issue such as increasing the rates of CO2 emissions in the atmosphere. This motivated several scholars to search for various alternatives for cement and one of such alternatives is called sulfur-based concrete. This concrete composite contributes to reduce the amount of cement required to make conventional concrete. Sulfur can be used as a partial-alternate binder to Ordinary Portland Cement (OPC) to produce sulfur-based concrete, which is a composite matrix of construction materials collected mostly from aggregates and sulfur. Sulfur modified concrete outperforms conventional concrete in terms of rapid gain of early strength, low shrinkage, low thermal conductivity, high durability resistance and excellent adhesion. On the basis of mentioned superior characteristics of sulfur-based concrete, it can be applied as a leading construction material for underground utility systems, dams and offshore structures. Therefore, this study reviews the sources, emissions from construction enterprises and compositions of sulfur; describes the production techniques and properties of sulfur; and highlights related literature to generate comprehensive insights into the potential applications of sulfur-based concrete in the construction industry today.
    Matched MeSH terms: Construction Industry
  18. Recent applications of ultrasonic waves in improved oil recovery: A review of techniques and results
    Hamidi H, Sharifi Haddad A, Wisdom Otumudia E, Rafati R, Mohammadian E, Azdarpour A, et al.
    Ultrasonics, 2021 Feb;110:106288.
    PMID: 33142226 DOI: 10.1016/j.ultras.2020.106288
    Ultrasound technique is an inexpensive and ecofriendly technology commonly used in oil and gas industry to improve oil recovery and its applications have been successfully tested in both laboratory and field scales. In this technique, high-power ultrasonic waves are utilized downhole to improve oil recovery and reduce formation damage in near wellbore region that causes a reduction in hydrocarbon production rate due to the penetration of mud, scale deposition, etc. In most of the cases, barriers for the oil flow to the wellbore are effectively removed by using the ultrasound technique and the effect of improved oil recovery may last up to several months. The aim of this paper is to provide an overview of recent laboratory, field and mathematical studies to serve as reference for future extensive examination of ultrasound assisted improved oil recovery. As an added value to this field of study, research gaps and opportunities based on the review of recent works were identified and factors that needs to be considered to improve the outcome of future studies were recommended.
    Matched MeSH terms: Oil and Gas Industry
  19. Fulltext Development of a Linear Acoustic Array for Aero-Acoustic Quantification of Camber-Bladed Vertical Axis Wind Turbine
    Butt AH, Akbar B, Aslam J, Akram N, Soudagar MEM, García Márquez FP, et al.
    Sensors (Basel), 2020 Oct 21;20(20).
    PMID: 33096774 DOI: 10.3390/s20205954
    Vertical axis wind turbines (VAWT) are a source of renewable energy and are used for both industrial and domestic purposes. The study of noise characteristics of a VAWT is an important performance parameter for the turbine. This study focuses on the development of a linear microphone array and measuring acoustic signals on a cambered five-bladed 45 W VAWT in an anechoic chamber at different tip speed ratios. The sound pressure level spectrum of VAWT shows that tonal noises such as blade passing frequencies dominate at lower frequencies whereas broadband noise corresponds to all audible ranges of frequencies. This study shows that the major portion of noise from the source is dominated by aerodynamic noises generated due to vortex generation and trailing edge serrations. The research also predicts that dynamic stall is evident in the lower Tip speed ratio (TSR) region making smaller TSR values unsuitable for a quiet VAWT. This paper compares the results of linear aeroacoustic array with a 128-MEMS acoustic camera with higher resolution. The study depicts a 3 dB margin between two systems at lower TSR values. The research approves the usage of the 8 mic linear array for small radius rotary machinery considering the results comparison with a NORSONIC camera and its resolution. These observations serve as a basis for noise reduction and blade optimization techniques.
    Matched MeSH terms: Industry
  20. Fulltext Mobile Network Performance and Technical Feasibility of LTE-Powered Unmanned Aerial Vehicle
    Zulkifley MA, Behjati M, Nordin R, Zakaria MS
    Sensors (Basel), 2021 Apr 18;21(8).
    PMID: 33919486 DOI: 10.3390/s21082848
    Conventional and license-free radio-controlled drone activities are limited to a line-of-sight (LoS) operational range. One of the alternatives to operate the drones beyond the visual line-of-sight (BVLoS) range is replacing the drone wireless communications system from the conventional industrial, scientific, and medical (ISM) radio band to a licensed cellular-connected system. The Long Term Evolution (LTE) technology that has been established for the terrestrial area allows command-and-control and payload communications between drone and ground station in real-time. However, with increasing height above the ground, the radio environment changes, and utilizing terrestrial cellular networks for drone communications may face new challenges. In this regard, this paper aims to develop an LTE-based control system prototype for low altitude small drones and investigate the feasibility and performance of drone cellular connectivity at different altitudes with measuring parameters such as latency, handover, and signal strength. The measurement results have shown that by increasing flight height from ground to 170 m the received signal power and the signal quality levels were reduced by 20 dBm and 10 dB respectively, the downlink data rate decreased to 70%, and latency increased up to 94 ms. It is concluded that although the existing LTE network can provide a minimum requirement for drone cellular connectivity, further improvements are still needed to enhance aerial coverage, eliminate interference, and reduce network latency.
    Matched MeSH terms: Industry
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