PROCEEDINGS OF THE 4TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES (ISCPMS2018)最新文献

{"title":"Gray scale and edge detecting method to enhance image quality on liquid diffusivity measurement system","authors":"H. Handoyo, D. Purwantiningsih, D. Maulidah, L. Soedarmawan, M. Aman, A. Sudarmaji, D. Handoko","doi":"10.1063/1.5132439","DOIUrl":"https://doi.org/10.1063/1.5132439","url":null,"abstract":"The mass transfer of aqueous solution in liquid has been systematically investigated by using refracted laser light through diffusing solution. The camera is connected to a computer to perform image processing in the form of some image filtration process and the algorithm in terms of obtaining the digitized value of the coordinates laser beam caught on the screen. The subtract filtration process was introduced to eliminate the effect of unwanted images on the screen. Furthermore, some algorithms based on OpenCV programming languages, such as grayscale and edge detection are applied to exhibit meaningful recorded laser beam traces and firmly determined the coordinate values. For complete discussion, performance of this system is proposed based on NaCl solution as a material of observation exhibits the diffusivity value 1.3864 × 10−5 cm2/s using this method.The mass transfer of aqueous solution in liquid has been systematically investigated by using refracted laser light through diffusing solution. The camera is connected to a computer to perform image processing in the form of some image filtration process and the algorithm in terms of obtaining the digitized value of the coordinates laser beam caught on the screen. The subtract filtration process was introduced to eliminate the effect of unwanted images on the screen. Furthermore, some algorithms based on OpenCV programming languages, such as grayscale and edge detection are applied to exhibit meaningful recorded laser beam traces and firmly determined the coordinate values. For complete discussion, performance of this system is proposed based on NaCl solution as a material of observation exhibits the diffusivity value 1.3864 × 10−5 cm2/s using this method.","PeriodicalId":376274,"journal":{"name":"PROCEEDINGS OF THE 4TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES (ISCPMS2018)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121990517","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}

{"title":"Enhancing the solubility of n-type diketopyrrolopyrrole-dicyanovinyl molecules with hybrid siloxane group for solution-processable organic field-effect transistor","authors":"S. P. Prakoso, Guan-Ting Ciou, H.-Y. Lin, W. Peng, Jyun-Hao Sie, Y. Huang, Y. Gan, Yao-Jin Ke, C.-Y. Wu, Claire L. Wang, Y. Tao","doi":"10.1063/1.5132430","DOIUrl":"https://doi.org/10.1063/1.5132430","url":null,"abstract":"Diketopyrrolopyrrole (DPP) organic dye is well-known to have poor solubility in most common organic solvents. In general, flexible alkyl chain is used to enhance the solubility of conjugated small molecules by disrupting the attraction between molecules. In this study, we have integrated hybrid organic-inorganic siloxane group as a solubilizing agent on DPP molecule carrying dicyanovinyl (DCV) as an electron-withdrawing group. UV-Vis absorption spectra were collected to evaluate the optical properties of these compounds. The electrical performances of these organic semiconductors were examined by fabricating into transistor device with them as active channel layer in the bottom gate staggered configuration. Furthermore, the molecular packing in thin films from this series was investigated by 2D grazing incident x-ray diffraction (GIXD) in relationship with device performances. It is shown that the siloxane group at the side chain of DPP effectively enhances the solubility of this molecule compared to DPP molecule with branched alkyl chain from previous study. A better solubility allows for device fabrication by solution process yet improves crystallinity of organic films and thus its electrical device performance.Diketopyrrolopyrrole (DPP) organic dye is well-known to have poor solubility in most common organic solvents. In general, flexible alkyl chain is used to enhance the solubility of conjugated small molecules by disrupting the attraction between molecules. In this study, we have integrated hybrid organic-inorganic siloxane group as a solubilizing agent on DPP molecule carrying dicyanovinyl (DCV) as an electron-withdrawing group. UV-Vis absorption spectra were collected to evaluate the optical properties of these compounds. The electrical performances of these organic semiconductors were examined by fabricating into transistor device with them as active channel layer in the bottom gate staggered configuration. Furthermore, the molecular packing in thin films from this series was investigated by 2D grazing incident x-ray diffraction (GIXD) in relationship with device performances. It is shown that the siloxane group at the side chain of DPP effectively enhances the solubility of this molecule compared to DPP ...","PeriodicalId":376274,"journal":{"name":"PROCEEDINGS OF THE 4TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES (ISCPMS2018)","volume":"60 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114111016","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}

{"title":"The profile of ovarian tissue after vitrification using ethylene glycol (EG) and longan honey in female Sprague-Dawley rats (Rattus norvegicus L.)","authors":"I. Muhiardi, N. Anita, A. Abinawanto, A. Jusuf, A. Awanis, M. A. Rosvita, Y. Q. A’yun","doi":"10.1063/1.5132526","DOIUrl":"https://doi.org/10.1063/1.5132526","url":null,"abstract":"","PeriodicalId":376274,"journal":{"name":"PROCEEDINGS OF THE 4TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES (ISCPMS2018)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128396682","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}

{"title":"Controlled wheelchair based on brain computer interface using Neurosky Mindwave Mobile 2","authors":"K. Permana, S. Wijaya, P. Prajitno","doi":"10.1063/1.5132449","DOIUrl":"https://doi.org/10.1063/1.5132449","url":null,"abstract":"Stroke diminishes someone’s quality of life since post-stroke symptoms can make some limbs do not function normally-in most cases, feet-thus the stroke patients’ mobility will be limited. However, the brain wave of stroke patients was observed as normal, thus in this study, the normal brainwaves were utilized to rehabilitate post-stroke patient and were expected to help their mobility through wheelchairs with brain waves control so that post-stroke patients can improve their quality of life. Brain Computer Interfaces (BCI) is a technology that allows taking action on a computer based on brain waves. Brain waves are recorded by electroencephalography so they can be processed by a computer. There have been many studies using BCI including analyzing brain waves in humans, many things that can be utilized using BCI make a lot of researchers use them to make smart wheelchairs that use brain control. and developments continue to be made to create the most optimal system. In this project we use one of the topics that is still being developed, that is Motor Imagery, where we record and analyze the brain waves while imagining motor activities such as moving hands, walking, running and so on. This record will serve as data reference to trigger the process on the computer to move the actuator. The purpose of this project is to control the wheelchair based on motor movements obtained by BCI using the Neurosky Mindwave Mobile 2 headset. This headset has one electrode where the signals from one electrode are analyzed by concentration and meditation values from the case of imagery motors, which in this project are more portable than using conventional EEG data acquisition devices that are not portable and use many channels. This headset is able to record data wirelessly via Bluetooth to a PC (Personal Computer), so the obtained signal can be processed and classified into five movement classes using the Matlab GUI, where the classes are default/motionless, move forward, move backward, turn right and turn left. The method used for the wheelchair was replacement of the default joystick in the electric wheelchair with an self-made controller module which was based on brain waves signals obtained from the headset will be processed and classified by Matlab GUI and then forwarded to Arduino Uno to control the motor in the wheelchair. The average success rates of the five classes from five trials were: the first class with a success rate of 82.22 %, the second class with a success rate of 70 %, the third class with a success rate of 73.33 %, the fourth class with a success rate of 46.67 % and the fifth class with a success rate of 17.78 %. The results of this study indicate that Neurosky Mindwave mobile 2 headset can be a possible choice for this project.Stroke diminishes someone’s quality of life since post-stroke symptoms can make some limbs do not function normally-in most cases, feet-thus the stroke patients’ mobility will be limited. However, the brain wave of str","PeriodicalId":376274,"journal":{"name":"PROCEEDINGS OF THE 4TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES (ISCPMS2018)","volume":"602 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133532195","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}

{"title":"Applying Black Scholes method for crop insurance pricing","authors":"M. H. Filiapuspa, S. Sari, S. Mardiyati","doi":"10.1063/1.5132469","DOIUrl":"https://doi.org/10.1063/1.5132469","url":null,"abstract":"Uncertainty of weather can cause a lot of problems, especially to crop industry that depends on weather. Excessive or lack of rainfall can cause crop failure and hence the farmers will suffer from ...","PeriodicalId":376274,"journal":{"name":"PROCEEDINGS OF THE 4TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES (ISCPMS2018)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130950732","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}

{"title":"Kaon photoproduction from threshold up to 5.5 GeV","authors":"V. Veryanta, T. Mart","doi":"10.1063/1.5132428","DOIUrl":"https://doi.org/10.1063/1.5132428","url":null,"abstract":"By using two different methods we have combined the recent isobar and the Regge models to explain kaon photoproduction process from its threshold up to W = 5.5 GeV. To this end, a transition region at energies between those commonly used by the conventional isobar and the Regge models, i.e., 2.5 ≤ W ≤ 3.0 GeV, is proposed. For the isobar model we use the previous result of Clymton et al. [1]. This model fits experimental data from threshold up to W = 2.8 GeV. In the high energy region the Regge model is utilized, where experimental data up to W = 5.5 GeV can be nicely reproduced. The result is compared with those of previous studies.By using two different methods we have combined the recent isobar and the Regge models to explain kaon photoproduction process from its threshold up to W = 5.5 GeV. To this end, a transition region at energies between those commonly used by the conventional isobar and the Regge models, i.e., 2.5 ≤ W ≤ 3.0 GeV, is proposed. For the isobar model we use the previous result of Clymton et al. [1]. This model fits experimental data from threshold up to W = 2.8 GeV. In the high energy region the Regge model is utilized, where experimental data up to W = 5.5 GeV can be nicely reproduced. The result is compared with those of previous studies.","PeriodicalId":376274,"journal":{"name":"PROCEEDINGS OF THE 4TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES (ISCPMS2018)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115497646","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}

{"title":"Microwave-assisted one-pot multicomponent synthesis of 1,4-dihydropyridine derivatives using nanochitosan","authors":"D. Febriantini, A. Cahyana, R. Yunarti, A. R. Liandi, B. Ardiansah","doi":"10.1063/1.5132495","DOIUrl":"https://doi.org/10.1063/1.5132495","url":null,"abstract":"A facile heterogeneous synthesis of 1,4-dihydropyridine was effectively conducted using one-pot three component-coupling of an aromatic aldehyde, an active methylene substance, and ammonium acetate in the presence of nanochitosan as a biopolymer catalytic system under solvent-free microwave-irradiation conditions in satisfactory yields. Chitosan nanocatalyst with a minimum particle size of < 100 nm was synthesized by crosslinking low molecular weight chitosan with polyanion sodium tripolyphosphate and physicochemically analyzed. The products of Hantzsch reaction obtained were determined by FTIR, UV/Vis spectrophotometer, and mass analysis. The antioxidant properties of the compounds were analyzed using DPPH method. The present method offers several advantages including easy isolation of products, easier work-up procedure, green conditions, excellent yields and short reaction time.A facile heterogeneous synthesis of 1,4-dihydropyridine was effectively conducted using one-pot three component-coupling of an aromatic aldehyde, an active methylene substance, and ammonium acetate in the presence of nanochitosan as a biopolymer catalytic system under solvent-free microwave-irradiation conditions in satisfactory yields. Chitosan nanocatalyst with a minimum particle size of < 100 nm was synthesized by crosslinking low molecular weight chitosan with polyanion sodium tripolyphosphate and physicochemically analyzed. The products of Hantzsch reaction obtained were determined by FTIR, UV/Vis spectrophotometer, and mass analysis. The antioxidant properties of the compounds were analyzed using DPPH method. The present method offers several advantages including easy isolation of products, easier work-up procedure, green conditions, excellent yields and short reaction time.","PeriodicalId":376274,"journal":{"name":"PROCEEDINGS OF THE 4TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES (ISCPMS2018)","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124192129","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}

{"title":"The combination effect of ethylene glycol and palm dates juice on ovarian tissue of female Sprague-Dawley rats (Rattus norvegicus L.) post-vitrification","authors":"M. A. Rosvita, N. Anita, A. Abinawanto, A. Jusuf, A. Awanis, I. Muhiardi, Y. Q. A’yun","doi":"10.1063/1.5132504","DOIUrl":"https://doi.org/10.1063/1.5132504","url":null,"abstract":"","PeriodicalId":376274,"journal":{"name":"PROCEEDINGS OF THE 4TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES (ISCPMS2018)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122302397","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}

{"title":"Preparation of boron doped diamond modified with cuprous oxide as working electrode for electroreduction of CO2","authors":"D. Denala, M. Khalil, T. Ivandini","doi":"10.1063/1.5132484","DOIUrl":"https://doi.org/10.1063/1.5132484","url":null,"abstract":"The abundant amount of carbon dioxide increases the interest in CO2 reduction research. There are a lot of methods to reduce CO2 and one of them is electroreduction. Electroreduction of CO2 is a promising technique, because it can transform CO2 directly into hydrocarbon. In this research, electroreduction of CO2 was studied using boron doped diamond (BDD) modified with cuprous oxide (Cu2O) as working electrode. Modification of BDD was done using chronoamperometry technique and characterized using Scanning Electron Microscope (SEM), Energy Dispersive X-Ray Spectroscopy (EDS), X-ray Photoelectron Spectroscopy (XPS), and Cyclic Votammetry (CV). The resulting product was analyzed using High Performance Liquid Chromatography (HPLC) and Gas Chromatography (GC) for liquid products and GC with TCD detector for the gas product. Results shown the BDD modified with cuprous oxide electrode produces the most variative products than other electrode, which are formic acid, ethanol, and acetic acid. The most produced product from the reduction is acetic acid in concentration 29.8 mg/L and %faradaic efficiency is 68.2 % using Cu2O-BDD electrode in −1.5 V potential","PeriodicalId":376274,"journal":{"name":"PROCEEDINGS OF THE 4TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES (ISCPMS2018)","volume":"1997 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125585336","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}

{"title":"Development of visual request system by using wireless EEG signal to help communication of patients suffering locked-in syndrome","authors":"M. M. Ramadhan, S. Wijaya, P. Prajitno","doi":"10.1063/1.5132445","DOIUrl":"https://doi.org/10.1063/1.5132445","url":null,"abstract":"Locked-in syndrome (LIS) has to be aware of, even though it is rare in the world. However, this disease has been reported to have ten years survival rates as high as 80 %. The physical appearance of the syndrome is a total paralysis but with preservation of consciousness. Consciousness indicates that the patient’s brain is still able to work quite well. Brain Computer Interfaces (BCI) is a technology that allow users to directly have control on computers or external devices by focusing on which action the users want to do through their brainwaves, which are recorded by the means of electroencephalograph. In this paper, we combine a feature of SDK community edition from a commercial BCI device called Emotiv EPOC+, which is the most credible and cost-effective mobile EEG headset on the market, with UNITY3D, the world’s leading content-creation engine, to build a beautiful and engaging content in Visual Request System to enable communication between patients with LIS and the people around them. In Visual Request System, there are 2 categories of requests, which are internal request system and external request system. Both requests depend on where the request came from. We tested the system and EPOC Control Panel on 10 volunteers to get the success rate data, and we make questionnaire for comparing user-friendly interface between a Visual Request System and Cognitiv Suite in the EPOC Control Panel software from Emotiv and we also ask them about the comfort when using Emotiv EPOC+. Then, we record every calibration data of Cognitiv suite EPOC Control Panel in Xavier TestBench 3.1.18, after that we analyze what happen in calibration data using Power Spectral Density with time window in 10 seconds duration. The results of our research conclude that the Visual Request System built on UNITY3D and Emotiv EPOC+ can be used as a communication system to help LIS patients by making some improvements and the Visual Request System is more user-friendly than EPOC Control Panel to show communication message. Power Spectral Density with time window in 10 second duration analysis indicates that the signal received by the Emotiv only based on an 8 seconds calibration is intersected to one another signal. Therefore, increasing the number of mental states that must be detected by the system will make the system more difficult to distinguish each mental state signal.","PeriodicalId":376274,"journal":{"name":"PROCEEDINGS OF THE 4TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES (ISCPMS2018)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129221284","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}