ASEAN Engineering Journal最新文献_第10页

REDUCTION OF PAPR USING ASYMMETRIC NUMERAL SYSTEM QC-LDPC WITH HUFFMAN AND ARITHMETIC CODING FOR F-OFDMA SYSTEM 非对称数字系统qc-ldpc在ofofdma系统中的霍夫曼和算术编码减少纸张

ASEAN Engineering Journal Pub Date : 2022-11-29 DOI: 10.11113/aej.v12.17957

A. Idris, Nurul Famyza Arham, S. M. Sulong, Mashira Meri, Siti Husna Abdul Rahman

{"title":"REDUCTION OF PAPR USING ASYMMETRIC NUMERAL SYSTEM QC-LDPC WITH HUFFMAN AND ARITHMETIC CODING FOR F-OFDMA SYSTEM","authors":"A. Idris, Nurul Famyza Arham, S. M. Sulong, Mashira Meri, Siti Husna Abdul Rahman","doi":"10.11113/aej.v12.17957","DOIUrl":"https://doi.org/10.11113/aej.v12.17957","url":null,"abstract":"As modern wireless communication systems move towards 5G implementation, the system must provide sophisticated and ubiquitous service and flexibility. Therefore, Filtered Orthogonal Frequency Division Multiple Access (F-OFDMA) is one of the most suitable modulation techniques used in 5G systems to achieve efficient and reliable wireless communication. Other than that, F-OFDMA also has good quality rather than OFDM since it provides a better result of high side lobes and enlarges the scale of the spectrum analyzer. However, one of the significant problems in the F-OFDMA system is the high peak-to-average power ratio (PAPR), affecting the system's overall performance and causing high transmit power at the transmitter. In this paper, combination of Arithmetic Coding (AC) and Huffman coding (HC) with Asymmetric Numeral Systems (ANS) provide better performance for PAPR as well as bit error rate (BER) in F-OFDMA. Both AC and HC are proposed to combine with ANS and Quasi-Cyclic Low-Density Parity Check (QC-LDPC) since it provides a good result to defeat the high PAPR. BER and PAPR performance were compared for the AC and HC with ANS QC-LDPC. Based on the results, ANS-AC-QCLDPC proved as the best joint method has 35.25% improvement for PAPR while BER has 89.87%. This research also justified that ANS with Arithmetic-QCLDPC and Huffman-QCLDPC give better BER results as well.","PeriodicalId":36749,"journal":{"name":"ASEAN Engineering Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47622313","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

STRESS ANALYSIS OF TEETH, PERIODONTAL TISSUES, AND MAXILLA BONES DUE TO BRUXISM 磨牙症对牙齿、牙周组织和上颌骨的应力分析

ASEAN Engineering Journal Pub Date : 2022-11-29 DOI: 10.11113/aej.v12.17735

S. Wicaksono, A. Mahyuddin, Aldilla Miranda, T. Dirgantara, Nunung Rusminah

{"title":"STRESS ANALYSIS OF TEETH, PERIODONTAL TISSUES, AND MAXILLA BONES DUE TO BRUXISM","authors":"S. Wicaksono, A. Mahyuddin, Aldilla Miranda, T. Dirgantara, Nunung Rusminah","doi":"10.11113/aej.v12.17735","DOIUrl":"https://doi.org/10.11113/aej.v12.17735","url":null,"abstract":"This paper investigates the stress distribution on the teeth and jaw during bruxism that may provide additional insights to the consequences of bruxism, splint design considerations, a basis for possible therapy protocols, and a baseline for future bruxism studies. A three-dimensional (3D) solid model of a complete jaw comprised of teeth, periodontal ligaments, and maxilla bone is reconstructed based on a Cone Beam Computed Tomography (CBCT) scan of a patient. A finite element model of the jaw is then constructed using the geometry imported from the solid model that has been reworked to remove imperfections during reconstruction and to allow proper contact between teeth. A linear elastic finite element analyses were then performed to simulate the bruxism phenomenon which includes biting and grinding. Numerical analysis is conducted only to the maxilla, with forces are placed on the teeth’s surface where contact occurs. The analysis is conducted for all stages of bruxism and possible movements patterns. Results suggest that high stresses occur during grinding, indicating a strong correlation between bruxism and dental issues such as tooth wear and alveolar resorption.","PeriodicalId":36749,"journal":{"name":"ASEAN Engineering Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42674838","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

SHEAR AND BENDING PERFORMANCE OF HORIZONTAL LAMINATED BAMBOO LUMBER BONDED WITH UREA-FORMALDEHYDE AND PRESERVED WITH DELTAMETHRIN 脲醛粘接与溴氰菊酯保存水平层合竹材的剪切和弯曲性能

ASEAN Engineering Journal Pub Date : 2022-11-29 DOI: 10.11113/aej.v12.18301

Tirana Novitri Syaifudin, Inggar Septhia Irawati, A. Awaludin

{"title":"SHEAR AND BENDING PERFORMANCE OF HORIZONTAL LAMINATED BAMBOO LUMBER BONDED WITH UREA-FORMALDEHYDE AND PRESERVED WITH DELTAMETHRIN","authors":"Tirana Novitri Syaifudin, Inggar Septhia Irawati, A. Awaludin","doi":"10.11113/aej.v12.18301","DOIUrl":"https://doi.org/10.11113/aej.v12.18301","url":null,"abstract":"Deltamethrin has potential to be used for bamboo strip preservation in laminated bamboo lumber (LBL) beam industry. However, there is a lack of information regarding the effect of deltamethrin preservation on the structural performance of the LBL beam. This study was intended to observe shear and bending performance of LBL beam made of Dendrocalamus asper, preserved by deltamethrin, and glued by urea-formaldehyde. The adhesive bonding strength test following ASTM D905 and MD Block method and static bending test based on ASTM D143 were performed toward preserved and unpreserved samples. The performance was observed by calculating adhesive bonding strength, MOE, MOR, ductility index, and investigating failure modes. The results show that the average adhesive bonding strength of the treated sample is 7.28 MPa (ASTM D905) and 7.03 MPa (MD Block), while the average adhesive bonding strength of the untreated sample is 7.67 MPa (ASTM D905) and 7.41 MPa (MD Block). The average MOE (modulus of elasticity) and MOR (modulus of rupture) of the treated specimen is 18,840 MPa and 110 MPa, respectively. The untreated specimen's average MOE and MOR are 18,199 MPa and 109 MPa, respectively. The average ductility index of untreated and treated specimens is 4.8 and 3.9, respectively. The adhesive bonding strength of treated and untreated samples are higher than the bamboo shear strength. The result indicates that deltamethrin has no significant effect on the adhesive bonding strength, MOR, and MOE of the LBL beam. The LBL beams show significant plastic deformation before final beam failure.","PeriodicalId":36749,"journal":{"name":"ASEAN Engineering Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42491973","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

THEORETICAL ANALYSIS OF SQUARE STRUCTURED PHOTONIC CRYSTAL FIBRE USING THE GOLDEN RATIO 方形结构光子晶体光纤的黄金分割理论分析

ASEAN Engineering Journal Pub Date : 2022-11-29 DOI: 10.11113/aej.v12.18008

A. Rahman, P. E. Abas, Abdul Mu'iz Maidi, N. Zou, F. Begum

引用次数: 0

XANTHAN GUM AND SILICA OXIDE NANOPARTICLE SYNERGIZATION EFFECTS ON OIL RECOVERY 黄原胶与二氧化硅纳米粒子协同采油的研究

ASEAN Engineering Journal Pub Date : 2022-11-29 DOI: 10.11113/aej.v12.17723

Farhatul Syafiqah Abu Bakar, S. Omar, Dayang Nur Sakinah Musa, W. R. Wan Sulaiman, M. Abdul Hamid, A. Sidek

{"title":"XANTHAN GUM AND SILICA OXIDE NANOPARTICLE SYNERGIZATION EFFECTS ON OIL RECOVERY","authors":"Farhatul Syafiqah Abu Bakar, S. Omar, Dayang Nur Sakinah Musa, W. R. Wan Sulaiman, M. Abdul Hamid, A. Sidek","doi":"10.11113/aej.v12.17723","DOIUrl":"https://doi.org/10.11113/aej.v12.17723","url":null,"abstract":"This study aims to evaluate the capability of synergised XG and SiO2 nanoparticles solutions to improve the solution viscosity, IFT reduction and analyse the effects on the recovery factor. Samples were prepared with 4000 ppm XG and five concentrations of SiO2 (1000, 3000, 5000, 7000, 9000 ppm). The samples were tested for viscosity and IFT reduction to determine the optimum concentration of the synergised solution. Then, a flooding test was conducted using a sand pack to measure oil recovery factors when different slug ratios of polymer and brine were injected. Results show viscosity of the solution increased with increasing SiO2 concentrations. The synergy has shown IFT reduction from 75.5 mN/m to 55 mN/m with increasing concentrations of the SiO2 added into the polymer solution. Thus, 4000 ppm of XG synergised with 3000 ppm SiO2 nanoparticles was chosen as the optimum concentration as the IFT reduction is achieved and can be correlated with the viscosity result. A slight viscosity difference is observed when 5000 ppm SiO2 nanoparticles were added to 3000 ppm SiO2 nanoparticles. Oil recovery increased from 27.5% to 56% using 4000 ppm XG, while the oil recovery was increased to 57.5% using the synergised solution with a similar slug ratio. Maximum oil recovery was 66.3%, using an optimum synergised solution with the highest slug ratio of 0.5:0.5 PV polymer flooding to water slug. These prove that SiO2 nanoparticles can help polymer flooding improve sweep and displacement efficiency by viscosity increment and IFT reduction to increase the oil recovery.","PeriodicalId":36749,"journal":{"name":"ASEAN Engineering Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45615096","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

DETERMINATION OF THE OPTIMUM LOAD PROFILE UNDER ENHANCED OF USE TARIFF (ETOU) SCHEME USING COMBINATION OF OPTIMIZATION ALGORITHMS AND SELF ORGANIZING MAPPING 利用优化算法和自组织映射相结合的方法确定了提高电价方案下的最优负荷分布

ASEAN Engineering Journal Pub Date : 2022-11-29 DOI: 10.11113/aej.v12.17324

M. F. Sulaima, N. Dahlan, Intan Azmira Abd. Razak, Z. H. Bohari, Amira Noor Farhanie Ali, Muhd Muhtazam Noor Din

{"title":"DETERMINATION OF THE OPTIMUM LOAD PROFILE UNDER ENHANCED OF USE TARIFF (ETOU) SCHEME USING COMBINATION OF OPTIMIZATION ALGORITHMS AND SELF ORGANIZING MAPPING","authors":"M. F. Sulaima, N. Dahlan, Intan Azmira Abd. Razak, Z. H. Bohari, Amira Noor Farhanie Ali, Muhd Muhtazam Noor Din","doi":"10.11113/aej.v12.17324","DOIUrl":"https://doi.org/10.11113/aej.v12.17324","url":null,"abstract":"Demand side management (DSM) has been conventionally adopted in many ways to efficiently managing the appropriate electricity loads. However, with the sophisticated design of the Time of Use (TOU) tariff to reflect electricity cost reduction, implementing proper Load Management (LM) strategies is challenging. To date, consumers still struggle to define a figure for the LM percentage to be involved in the demand response program. Due to that reason, this study proposes a method to find the best load profile reflecting the new tariff offered by using a combination of optimization algorithms such as Particle Swarm Optimization (PSO), Ant Colony Optimization (ACO), Evolutionary PSO (EPSO), and Self-Organizing Mapping (SOM). The evaluation has been made to the manufacturing operation with the existing flat tariff to be transferred to the Enhanced Time of Use (ETOU). The test results show that the ability of the proposed combination method to define the optimal outputs such as energy consumption cost, maximum demand cost, load factor index, and building electricity economic responsive index. Meanwhile, the SOM algorithm has been used to classify the enormous numbers of those simulation results produced by algorithms while defining the best LM weightage. As the test results for the case study, it was found that the practical 6% LM weightage was able to reflect the optimal required load profile shifting to be applied by manufacturing operation. Thus, by determining the optimal load profile that suits the ETOU scheme, the consumers can enjoy cost benefits while supporting the demand response program concurrently.","PeriodicalId":36749,"journal":{"name":"ASEAN Engineering Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43824529","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

SEMICIRCULAR SLOT BASED UWB MICROSTRIP PATCH ANTENNA FOR VARIABLE BAND NOTCHED APPLICATIONS 用于可变带陷波应用的半圆槽超宽带微带贴片天线

ASEAN Engineering Journal Pub Date : 2022-11-29 DOI: 10.11113/aej.v12.17793

M. M. Mahfuz, M. R. Islam, M. H. Habaebi, N. A. Malek

{"title":"SEMICIRCULAR SLOT BASED UWB MICROSTRIP PATCH ANTENNA FOR VARIABLE BAND NOTCHED APPLICATIONS","authors":"M. M. Mahfuz, M. R. Islam, M. H. Habaebi, N. A. Malek","doi":"10.11113/aej.v12.17793","DOIUrl":"https://doi.org/10.11113/aej.v12.17793","url":null,"abstract":"The patch antenna with Ultra-Wide Band (UWB) characteristics is a promising candidate for wireless communication. It is a major research problem to mitigate electromagnetic interference (EMI) with narrowband technologies such as 5G lower band, Wi-MAX, WLAN and satellite band, which are all in the UWB region. This study describes a UWB antenna with variable band rejection that can be used to avoid interference with Wi-MAX and 5G lower band applications. The UWB characteristics of a simple rectangle patch antenna with a faulty ground structure has been designed for operational bandwidth (2.7–13) GHz. A novel method semicircular slot (SCS) at the radiation patch creates a band notched from (3.25–3.80) GHz and (3.4–4) GHz. Variable band rejection between (2.95–4.40) GHz can be achieved by adjusting the “Wa” values. When measured over the band rejection frequency, the return loss (S11) and VSWR values are very close to 0 dB and larger than 2. The simulated and measured results such as return loss, VSWR, 2-D polar pattern and gain have almost similar agreement. The design of the suggested antenna is simple, compact and efficient for Wi-MAX application, this is an ideal UWB antenna with the band notch characteristics.","PeriodicalId":36749,"journal":{"name":"ASEAN Engineering Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47077776","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

2D-FACE ALIGNMENT WITH CYCLEGAN FACE AGING IMAGE-TO-IMAGE TRANSLATION 二维人脸对齐与循环人脸老化图像到图像的转换

ASEAN Engineering Journal Pub Date : 2022-11-29 DOI: 10.11113/aej.v12.17492

N. Hamzah, F. H. Kamaru Zaman, N. Md. Tahir

引用次数: 0

DEVELOPMENT OF A REHABILITATION ROBOT: MODELING AND TRAJECTORY TRACKING CONTROL 康复机器人的研制：建模与轨迹跟踪控制

ASEAN Engineering Journal Pub Date : 2022-11-29 DOI: 10.11113/aej.v12.17196

Minh-Chien Trinh, T. Do, Q. Dao

引用次数: 3

A PERFORMANCE ANALYSIS ON DRONE LOCO POSITIONING SYSTEM FOR TWO-WAY RANGING PROTOCOL 基于双向测距协议的无人机座标定位系统性能分析

ASEAN Engineering Journal Pub Date : 2022-08-31 DOI: 10.11113/aej.v12.17487

Timothy Scott Chu, A. Chua, E. Sybingco, M. A. Roque

{"title":"A PERFORMANCE ANALYSIS ON DRONE LOCO POSITIONING SYSTEM FOR TWO-WAY RANGING PROTOCOL","authors":"Timothy Scott Chu, A. Chua, E. Sybingco, M. A. Roque","doi":"10.11113/aej.v12.17487","DOIUrl":"https://doi.org/10.11113/aej.v12.17487","url":null,"abstract":"Localization is vital in UAV operation as it monitors the position of each drone in a workspace. Existing localization techniques such as GPS are limited for outdoor implementations and cannot be implemented inside closed spaces or GPS denied areas. To address this concern localization techniques, such as vision systems and radio systems, are developed. The drawback of vision systems is the cost of implementation as the system usually requires multiple cameras strategically positioned around the experimental space to monitor the aerial drone’s position and orientation. Radio localization, on the other hand, is a cheaper alternative for indoor localization as it requires only a set of anchor and tags that communicates through a certain radio frequency; however, experimental setups and materials on this localization technique is limited at this time. This paper offers an analysis of the performance of the loco positioning system, a form of radio localization, through varying configurations for swarm drone applications. The Loco Positioning System possesses two protocols; and this paper focuses on the Two-Way Ranging protocol. The study presents different setup configurations governed by 2 parameters; number of anchors used, and the distance set between anchors, and their corresponding performances. Data showed that an increase in anchor count from 3 to 6 decreases error from 25.96% to 8.45%, and that decreasing the distance between anchors 0.6 m to 1 m would give a minimal increase in error. Users may use these performance reports to determine their ideal setup based on the mentioned parameters.","PeriodicalId":36749,"journal":{"name":"ASEAN Engineering Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49124804","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