IPTEK: The Journal for Technology and Science最新文献_第7页

The Impact of Behavior of Restaurant Employees on Word of Mouth Intention: The Mediating Role of Customer Satisfaction 餐厅员工行为对口碑意向的影响:顾客满意的中介作用

IPTEK: The Journal for Technology and Science Pub Date : 2020-05-27 DOI: 10.12962/j20882033.v31i1.6328

N. Fitria, Elevita Yuliati

{"title":"The Impact of Behavior of Restaurant Employees on Word of Mouth Intention: The Mediating Role of Customer Satisfaction","authors":"N. Fitria, Elevita Yuliati","doi":"10.12962/j20882033.v31i1.6328","DOIUrl":"https://doi.org/10.12962/j20882033.v31i1.6328","url":null,"abstract":"The increase in restaurant numbers every year has affected the intensity of competition in the restaurant industry. To be stand out among competitors, the right perceived image of the restaurant is needed and could be maintained by positive word-of-mouth spread in the community. The present study examines if employee behavior comprising of personal and functional service aspects in casual dining restaurant has an impact on customer satisfaction and word-of-mouth intention at casual dining restaurants. Using a survey approach, the questionnaire was distributed to 198 respondents age 17 years and above, which have already been to one of the particular casual dining restaurants in Jakarta. The data were analyzed using structural equation modeling. Based on the study results, both personal and functional aspects can significantly predict customer satisfaction, although the functional aspects have contributed more considerably than the individual aspects. Besides, the result revealed that customer satisfaction would eventually affect word-of-mouth positively. Limitations and future research directions are also discussed.","PeriodicalId":14549,"journal":{"name":"IPTEK: The Journal for Technology and Science","volume":"146 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88636791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Opinion Analysis of Traveler Based on Tourism Site Review Using Sentiment Analysis 基于情感分析的旅游网站评论游客意见分析

IPTEK: The Journal for Technology and Science Pub Date : 2020-05-27 DOI: 10.12962/j20882033.v31i2.6338

S. Amira, M. Irawan

{"title":"Opinion Analysis of Traveler Based on Tourism Site Review Using Sentiment Analysis","authors":"S. Amira, M. Irawan","doi":"10.12962/j20882033.v31i2.6338","DOIUrl":"https://doi.org/10.12962/j20882033.v31i2.6338","url":null,"abstract":"Technology development nowadays makes it easier for people to access information. One of them is to ﬁnd information regarding a place. Many prospective visitors would read reviews from people who have visited a place to ﬁnd out how they rate a place. Opinion on other people’s reviews is very inﬂuential in inﬂuencing others’ decisions in assessing a place they want to visit. Opinion analysis can be done by conducting a sentiment analysis of hotel customer reviews. The data used are traveler reviews of hotels in East Java on the Tripadvisor site. Traveler reviews data was taken by crawling on tourist sites, and the unstructured reviews data would be a preprocessing and weighted term from reviews using the TF-IDF method. The classiﬁcation process is done using the support vector machine method to ﬁnd opinions from traveler reviews, which are positive or negative. Based on the classiﬁcation results, hotels that have the most positive sentiments in Surabaya are Harris Hotel Gubeng and Pop! Hotel Gubeng with the same number of reviews, 252 reviews. In comparison, hotels with the most positive sentiment in Malang are Harris Hotel Malang with 311 reviews. The opinion analysis results are expected to help the hotel manager evaluate and develop to increase the number of tourist visits.","PeriodicalId":14549,"journal":{"name":"IPTEK: The Journal for Technology and Science","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87461217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Environmental Pollution Impact Analysis on Faecal Sludge Process Using Life Cycle Assessment and Analytic Hierarchy Process 基于生命周期评价和层次分析法的粪便污泥处理环境污染影响分析

IPTEK: The Journal for Technology and Science Pub Date : 2020-05-27 DOI: 10.12962/j20882033.v31i2.6333

Firlianda Imansyah, N. Karnaningroem

{"title":"Environmental Pollution Impact Analysis on Faecal Sludge Process Using Life Cycle Assessment and Analytic Hierarchy Process","authors":"Firlianda Imansyah, N. Karnaningroem","doi":"10.12962/j20882033.v31i2.6333","DOIUrl":"https://doi.org/10.12962/j20882033.v31i2.6333","url":null,"abstract":"The processing of fecal sludge in the IPLT is an advanced processing activity because the sludge in the septic tank has not been properly disposed of into the environment. After all, it still contains high organic loads. IPLT Kota Batu is the object of research. It aims to determine the environmental impact caused by the treatment of sludge in the IPLT Kota Batu with the Life Cycle Assessment Method then provide an alternative in reducing the impact with the Analytic Hierarchy Process Method. Life Cycle Assessment is a method for analyzing the environmental impact of a product throughout the life cycle. Stages of life cycle assessment (LCA) are goals and scope, life cycle inventory, life cycle impact assessment, and interpretation data. An alternative selection is then made to reduce the environmental impact using the Analytic Hierarchy Process (AHP) Method. AHP is describing a complex problem into a result that is represented in a multi-level structure. AHP stages are input goals, criteria, alternatives, weighting, and priority scale, producing the recommended answer or decision. From the LCA method, it was found that the emission load released into the environment in the treatment of sludge was in the form of CO2 emissions, energy emissions, and potentially disappearing species fractions of 3.948,935 kg CO2/year, 1.100.334,84 MJ, and 3.624,647 PDF.m2.y. The use of this method can find out that the treatment of sludge in the IPLT Kota Batu has an environmental burden and impacts the phenomenon of global warming, non-renewable energy, and aquatic eutrophication. The best alternative to reduce emissions in the treatment process of sludge in the IPLT Kota Batu is to perform maintenance treatment on a scheduled basis.","PeriodicalId":14549,"journal":{"name":"IPTEK: The Journal for Technology and Science","volume":"31 1","pages":"211"},"PeriodicalIF":0.0,"publicationDate":"2020-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48842708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Suitability Evaluation of Procurement Information Systems to the Needs of Users and Management Using Human, Organization, Technology-Fit (HOT-Fit) Framework 采购信息系统对用户和管理需求的适用性评估，使用人员，组织，技术匹配(HOT-Fit)框架

IPTEK: The Journal for Technology and Science Pub Date : 2020-05-27 DOI: 10.12962/j20882033.v31i1.6326

Dwi Cahyono, E. Suryani

{"title":"The Suitability Evaluation of Procurement Information Systems to the Needs of Users and Management Using Human, Organization, Technology-Fit (HOT-Fit) Framework","authors":"Dwi Cahyono, E. Suryani","doi":"10.12962/j20882033.v31i1.6326","DOIUrl":"https://doi.org/10.12962/j20882033.v31i1.6326","url":null,"abstract":"Management Information System (MIS) in government institutions is vital in supporting excellent services to the community. The establishedMIS often provides less optimum benefits since the MIS development did not go through a proper planning and was not supported by a clear IT Masterplan. Therefore, an evaluation of the MIS implementation is needed. There are three main aspects that needs to be evaluated, i.e. human, organization, and technology. The procurement unit of Malang City has an MIS for procurement submission called siBaja. It has been on production since 2016. This study aims to evaluate the suitability of siBaja based on Human, Organizationi, Technology-Fit (HOT-Fit) framework. A data was collected from end-users through a survey method. The data analysis was modeled using SEM-PLS.We found that the implementation of siBaja was not fully fit with respect to human-technology relationship. It was indicated by the absence of a significant effect between the user satisfaction and service quality variables with a significance value of 0.899 at α = 0.05. Thus, it was not fully fit for organization-technology relationship. It was indicated by the absence of a significant effect between service control, internal control variables with a significance value of 0.221 at α = 0.05.","PeriodicalId":14549,"journal":{"name":"IPTEK: The Journal for Technology and Science","volume":"86 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90053157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Preliminary Study of Reducing Sugar Production from Coconut Husk by Enzymatic Hydrolysis Using Chitosan Immobilized Crude and Commercial Cellulase 壳聚糖固定化粗品和商品纤维素酶酶解椰子壳制备还原糖的初步研究

IPTEK: The Journal for Technology and Science Pub Date : 2020-03-20 DOI: 10.12962/j20882033.v31i1.5638

A. Hamzah, M. Hakim, B. Safitri, Nurul Maziyah, L. Rahmah, H. Sangian, S. Soeprijanto, A. Widjaja

{"title":"Preliminary Study of Reducing Sugar Production from Coconut Husk by Enzymatic Hydrolysis Using Chitosan Immobilized Crude and Commercial Cellulase","authors":"A. Hamzah, M. Hakim, B. Safitri, Nurul Maziyah, L. Rahmah, H. Sangian, S. Soeprijanto, A. Widjaja","doi":"10.12962/j20882033.v31i1.5638","DOIUrl":"https://doi.org/10.12962/j20882033.v31i1.5638","url":null,"abstract":"The objective of this research was to study the production of sugar from coconut husk using immobilized crude and commercial cellulose, including temperature and mixing speed during immobilization. The enzyme from Aspergillus Niger was immobilized on chitosan alone and cross-linked with Glutaric Dialdehyde (GDA). Coconut husk waste was grinded and chemically pretreated using NaOH 1% (w/v). Fourier Transform Infrared Spectroscopy (FT-IR) measurement revealed that enzyme was covalently bonded to the support. Cellulose immobilized on chitosan cross-linked with GDA produced more sugar than immobilized on chitosan alone. Both the crude and commercial enzyme had their yield decreased after immobilization. Despite its less enzyme coupled on micro-sized chitosan, reducing sugar yielded by an immobilized enzyme on micro-sized chitosan had a competitive result with macro-sized chitosan. This may due to decreasing mass transfer resistance when using a smaller size of chitosan. Several important factors such as temperature, mixing speed, and purity of enzyme responsible for the performance of sugar produced from insoluble cellulose using cellulose immobilized on insoluble support was thoroughly discussed.","PeriodicalId":14549,"journal":{"name":"IPTEK: The Journal for Technology and Science","volume":"31 1","pages":"67"},"PeriodicalIF":0.0,"publicationDate":"2020-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44541044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Synthesis and Characterization of Zeolitic Imidazolate Framework-8 (ZIF-8)/Al2O3 Composite 分子筛咪唑酸骨架-8 (ZIF-8)/Al2O3复合材料的合成与表征

IPTEK: The Journal for Technology and Science Pub Date : 2020-03-20 DOI: 10.12962/j20882033.v31i1.5511

W. Aulia, Ahnaf Ahnaf, Mochammad Yusuf Irianto, R. Ediati, R. M. Iqbal, Rahadian Abdul Rachman, Ulva Tri Ita Martia

引用次数: 8

Ship Maneuverability Experiments on Open Water with Rudder Model Variations: Case Study of SPB-XXOO 舵型变化下开阔水域船舶操纵性试验——以SPB-XXOO为例

IPTEK: The Journal for Technology and Science Pub Date : 2020-03-20 DOI: 10.12962/j20882033.v31i1.5637

Rizka Arie Hutama, W. Aryawan, E. Sugita

{"title":"Ship Maneuverability Experiments on Open Water with Rudder Model Variations: Case Study of SPB-XXOO","authors":"Rizka Arie Hutama, W. Aryawan, E. Sugita","doi":"10.12962/j20882033.v31i1.5637","DOIUrl":"https://doi.org/10.12962/j20882033.v31i1.5637","url":null,"abstract":"Ship maneuverability is important to study because it affects safety. Moreover, if the ship operates in a narrow shipping lane, as experienced by SPUB that operated in Musi River. This research focuses on the experimental process of SPUB maneuvers in open water, especially for the turning circles’ movement. The experiment was conducted using a prototype, model SPB-XXOO, which was equipped with components of the instrumentation system such as data logger and propulsion system. Both are integrated into the remote control and computer to perform control functions, calculations, data logging, and data transfer through the wireless communication system. The main controller of the propulsion system is an implanted program to deflect the rudder automatically. Three rudder models with variations in aspect ratios of 1.10, 1.65, and 2.20, also two variations of the rudder angle; 30o and 35o are used to test the model. GPS does the data acquisition process for each experimental process. Based on the analysis of the rudder model’s effect, it was found that a rudder with a large aspect ratio provides better performance than a lower aspect ratio. The average increase in the maneuver performance of the rudder with the smallest to the most significant aspect ratio is 17.345%.","PeriodicalId":14549,"journal":{"name":"IPTEK: The Journal for Technology and Science","volume":"31 1","pages":"54"},"PeriodicalIF":0.0,"publicationDate":"2020-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48701055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study of Hydrodynamics and Overall Gas Hold Up Validation in Bubble Column by Computational Fluid Dynamics 用计算流体力学方法研究鼓泡塔的流体动力学和整体含气率

IPTEK: The Journal for Technology and Science Pub Date : 2020-03-20 DOI: 10.12962/j20882033.v31i1.5636

Yukh Ihsana, S. Winardi, T. Nurtono

{"title":"Study of Hydrodynamics and Overall Gas Hold Up Validation in Bubble Column by Computational Fluid Dynamics","authors":"Yukh Ihsana, S. Winardi, T. Nurtono","doi":"10.12962/j20882033.v31i1.5636","DOIUrl":"https://doi.org/10.12962/j20882033.v31i1.5636","url":null,"abstract":"The study of overall gas hold up has been carried out experimentally with the bed expansion. The superficial gas velocities used for the experiments are 6.369 m/s and 10.616 m/s. The experiment is carried out in a bubble column with inside diameters of 7 cm and a height of 100 cm. Gas from the gas cylinder is supplied through a distributor consisting of a perforated plate and glass beads. The perforated plate has a hole diameter of 1 mm and 0.5 mm. Computational Fluid Dynamic (CFD) using a Eulerian coupled with Population Balance model is developed to predict overall gas hold up and bubble size distribution. The effect of superficial gas velocity, perforated plate diameter, gas properties, and initial liquid level on gas hold up were studied. The use of population balance can significantly improve the overall gas hold-up results compared to constant bubble diameter. It is found that several operating conditions affect the whole gas hold up, namely initial liquid level, superficial gas velocity, and differences in gas properties. While the influence of the difference in perforated plate diameter to overall gas holds up, results are small compared to other operating conditions.","PeriodicalId":14549,"journal":{"name":"IPTEK: The Journal for Technology and Science","volume":"31 1","pages":"44-53"},"PeriodicalIF":0.0,"publicationDate":"2020-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42493748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Study of Extraction Calophyllum inophyllum L using Microwave Hydrodiffusion Gravity And Chemical Extraction method 微波水扩散重力萃取法及化学萃取法提取茶叶的研究

IPTEK: The Journal for Technology and Science Pub Date : 2020-03-20 DOI: 10.12962/j20882033.v31i1.5629

R. S. C. Muchammad, M. Mahfud, L. Qadariyah

引用次数: 2

The Effect of Gamma Irradiation on HDPE/HA Composite as Candidate Material Dental Implant 伽马辐射对HDPE/HA复合材料牙种植体候选材料的影响

IPTEK: The Journal for Technology and Science Pub Date : 2020-03-20 DOI: 10.12962/j20882033.v31i1.5628

Pormauli Gultom, S. Wicaksono, A. Purniawan, S. Sudirman, S. G. Sukaryo

引用次数: 2