Pub Date : 2020-04-01DOI: 10.1109/IRASET48871.2020.9092191
Abderazzak Ziat, M. Sallaou, H. Zaghar, Abdelmajid AITTALEB
This work is a contribution to the integration of the concepts of reliability and robustness in the design phase of a product optimization, However, the lack of information and the high degree of uncertainty during the early design phases hinder the use of these tools. To overcome this problem, we have proposed a structured approach based on the evaluation under uncertainty of two main phases of the design process (conceptual design and embodiment design).
{"title":"Optimization approach under uncertainty in preliminary design for mechanical engineering","authors":"Abderazzak Ziat, M. Sallaou, H. Zaghar, Abdelmajid AITTALEB","doi":"10.1109/IRASET48871.2020.9092191","DOIUrl":"https://doi.org/10.1109/IRASET48871.2020.9092191","url":null,"abstract":"This work is a contribution to the integration of the concepts of reliability and robustness in the design phase of a product optimization, However, the lack of information and the high degree of uncertainty during the early design phases hinder the use of these tools. To overcome this problem, we have proposed a structured approach based on the evaluation under uncertainty of two main phases of the design process (conceptual design and embodiment design).","PeriodicalId":271840,"journal":{"name":"2020 1st International Conference on Innovative Research in Applied Science, Engineering and Technology (IRASET)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124035531","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}
Pub Date : 2020-04-01DOI: 10.1109/IRASET48871.2020.9092222
Youssef Mnaoui, Aouatif Najoua, H. Ouajji
This paper presents a new training approach based on artificial intelligence for air traffic management. A first objective is to provide a conceptual and theoretical connotation on how to treat the Concept of accident causation by establishing a critical approach to the concept. Also, we propose a Design of a Training /Evaluating system based on voice recognition based on temporal and qualitative modelling which can be used in two ways:A training system for air emergency managers where the acquired skills and professional attitudes will be developed and consolidated under the supervision of an instructor.An evolving training system for the benefit of natural or anthropogenic crisis managers allowing the injection of new scenarios.Our contribution proposes improvements that could be implemented in the training of Emergency Situation Managers in order to be more efficient and use less time to manage emergency situation.
{"title":"Conception of a Training System for Emergency Situation Managers","authors":"Youssef Mnaoui, Aouatif Najoua, H. Ouajji","doi":"10.1109/IRASET48871.2020.9092222","DOIUrl":"https://doi.org/10.1109/IRASET48871.2020.9092222","url":null,"abstract":"This paper presents a new training approach based on artificial intelligence for air traffic management. A first objective is to provide a conceptual and theoretical connotation on how to treat the Concept of accident causation by establishing a critical approach to the concept. Also, we propose a Design of a Training /Evaluating system based on voice recognition based on temporal and qualitative modelling which can be used in two ways:A training system for air emergency managers where the acquired skills and professional attitudes will be developed and consolidated under the supervision of an instructor.An evolving training system for the benefit of natural or anthropogenic crisis managers allowing the injection of new scenarios.Our contribution proposes improvements that could be implemented in the training of Emergency Situation Managers in order to be more efficient and use less time to manage emergency situation.","PeriodicalId":271840,"journal":{"name":"2020 1st International Conference on Innovative Research in Applied Science, Engineering and Technology (IRASET)","volume":"44 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113956655","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}
Tumor segmentation from magnetic resonance images (MRI) is an error-prone and time-absorbing process. In this paper, we propose a novel architecture adapting the Optical Scanning Holography (OSH) to the detection of tumors regions in MRI. The proposed method combines an off-axis optical scan, performed by a heterodyne fringe pattern, and a MR image display ensured by a spatial light modulator. The output quadrature component of the scanned current is collected digitally. Hence, a high-precision distribution of biological tissues is extracted. Its maximum position is exactly the one of the tumor. Meanwhile, this position is used in an Active Contour Model (ACM) to perform a fast segmentation of the extent corresponding to the tumors. Several images of brain tumors from BRATS database, with tumors having different contrast and form, are used to test the proposed system. Parameters reverted by the optical process are used to investigate the detection performance. Further, in terms of tumor segmentation, the proposed OSH-ACM process has high performance metrics compared to some of recently published method. The underlying physics of the precision superiority, presented by the OSH-ACM, is the high-precision extraction of the abnormal tissue regions by the quadrature component of the scanned current.
{"title":"Optical based approach for brain tumor segmentation","authors":"Essadike Abdelaziz, Ouabida Elhoussaine, Boublouh Souhaila, Halaq Hanan, Bouzid Abdenbi","doi":"10.1109/IRASET48871.2020.9092288","DOIUrl":"https://doi.org/10.1109/IRASET48871.2020.9092288","url":null,"abstract":"Tumor segmentation from magnetic resonance images (MRI) is an error-prone and time-absorbing process. In this paper, we propose a novel architecture adapting the Optical Scanning Holography (OSH) to the detection of tumors regions in MRI. The proposed method combines an off-axis optical scan, performed by a heterodyne fringe pattern, and a MR image display ensured by a spatial light modulator. The output quadrature component of the scanned current is collected digitally. Hence, a high-precision distribution of biological tissues is extracted. Its maximum position is exactly the one of the tumor. Meanwhile, this position is used in an Active Contour Model (ACM) to perform a fast segmentation of the extent corresponding to the tumors. Several images of brain tumors from BRATS database, with tumors having different contrast and form, are used to test the proposed system. Parameters reverted by the optical process are used to investigate the detection performance. Further, in terms of tumor segmentation, the proposed OSH-ACM process has high performance metrics compared to some of recently published method. The underlying physics of the precision superiority, presented by the OSH-ACM, is the high-precision extraction of the abnormal tissue regions by the quadrature component of the scanned current.","PeriodicalId":271840,"journal":{"name":"2020 1st International Conference on Innovative Research in Applied Science, Engineering and Technology (IRASET)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127755296","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}
Pub Date : 2020-04-01DOI: 10.1109/IRASET48871.2020.9092230
Mariem Bounabi, K. E. Moutaouakil, K. Satori
Representation of knowledge remains a problem for models of machine learning (ML). The Paragraph vector is one of the current methods for embedding the text, where many parameters govern the utility of representation. In this context, we are addressing the effect, on the text classification area, of Paragraph Vector-Distributed Memory (PV-DM) as variant of doc2vec. In comparison, we apply other classification systems focused on doc2vec forms, and a collection of classifiers with current practices in this article. Then, we incorporate hybrid ML methods to improve the quality of classification. The experiments, on benchmarking dataset, prove that the results obtained are excellent, with 99% accuracy in the system based on the PV-DM with average method, and majority voting as a classifier.
{"title":"Neural Embedding & Hybrid ML Models for Text Classification","authors":"Mariem Bounabi, K. E. Moutaouakil, K. Satori","doi":"10.1109/IRASET48871.2020.9092230","DOIUrl":"https://doi.org/10.1109/IRASET48871.2020.9092230","url":null,"abstract":"Representation of knowledge remains a problem for models of machine learning (ML). The Paragraph vector is one of the current methods for embedding the text, where many parameters govern the utility of representation. In this context, we are addressing the effect, on the text classification area, of Paragraph Vector-Distributed Memory (PV-DM) as variant of doc2vec. In comparison, we apply other classification systems focused on doc2vec forms, and a collection of classifiers with current practices in this article. Then, we incorporate hybrid ML methods to improve the quality of classification. The experiments, on benchmarking dataset, prove that the results obtained are excellent, with 99% accuracy in the system based on the PV-DM with average method, and majority voting as a classifier.","PeriodicalId":271840,"journal":{"name":"2020 1st International Conference on Innovative Research in Applied Science, Engineering and Technology (IRASET)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126479578","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}
Pub Date : 2020-04-01DOI: 10.1109/IRASET48871.2020.9092298
Bellat Abdelouahad, Ech-chhibat My El houssine, L. Zahiri, Raihani Abdelhadi, K. Mansouri
Wind energy is currently one of the most profitable renewable energy sources in electricity generation. However, much remains to be done to improve wind energy production. In this work, we will focus on the influence of wake models on the efficiency of wind farm design and their comparisons. this study showed the inability of wake models to predict exactly the energy produced in wind farms due to assumptions to facilitate the calculations and uncertainties of the different variables. In the rest of this work we tried to discuss the possibility standardize and adjust the loss of wake for optimal production and lifetime of a wind farm.
{"title":"wind farms power estimation based on the different wake models and their optimization","authors":"Bellat Abdelouahad, Ech-chhibat My El houssine, L. Zahiri, Raihani Abdelhadi, K. Mansouri","doi":"10.1109/IRASET48871.2020.9092298","DOIUrl":"https://doi.org/10.1109/IRASET48871.2020.9092298","url":null,"abstract":"Wind energy is currently one of the most profitable renewable energy sources in electricity generation. However, much remains to be done to improve wind energy production. In this work, we will focus on the influence of wake models on the efficiency of wind farm design and their comparisons. this study showed the inability of wake models to predict exactly the energy produced in wind farms due to assumptions to facilitate the calculations and uncertainties of the different variables. In the rest of this work we tried to discuss the possibility standardize and adjust the loss of wake for optimal production and lifetime of a wind farm.","PeriodicalId":271840,"journal":{"name":"2020 1st International Conference on Innovative Research in Applied Science, Engineering and Technology (IRASET)","volume":"318 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126860609","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}
Pub Date : 2020-04-01DOI: 10.1109/IRASET48871.2020.9092062
E. Akoro, G. J. Tevi, M. E. Faye, F. Hamoud, A. S. Maiga, M. Doumbia
In this paper, a comparative study of power losses in single and parallel photovoltaic inverter systems is presented. The voltage source inverters (VSI) use power semiconductor as a switch. The insulated-gate bipolar transistor (IGBT) is the most used. These semiconductor devices generate significant power losses thus reducing the efficiency in high-power grid-connected photovoltaic (PV) systems. In this case, paralleling several PV inverters to share the load could improve the efficiency of the system. Using the polynomial approximation method, the losses in the IGBT module have been calculated. A theoretical comparative study in terms of power losses is first carried out and then, it would be validated by simulation using Matlab / Simulink software. The results show that, the parallel inverter structure in high power PV systems improves the efficiency of the system by reducing the power losses generated by the IGBT modules.
{"title":"Comparative Study of Power Losses in Single and Parallel High-Power Photovoltaic Inverter Systems","authors":"E. Akoro, G. J. Tevi, M. E. Faye, F. Hamoud, A. S. Maiga, M. Doumbia","doi":"10.1109/IRASET48871.2020.9092062","DOIUrl":"https://doi.org/10.1109/IRASET48871.2020.9092062","url":null,"abstract":"In this paper, a comparative study of power losses in single and parallel photovoltaic inverter systems is presented. The voltage source inverters (VSI) use power semiconductor as a switch. The insulated-gate bipolar transistor (IGBT) is the most used. These semiconductor devices generate significant power losses thus reducing the efficiency in high-power grid-connected photovoltaic (PV) systems. In this case, paralleling several PV inverters to share the load could improve the efficiency of the system. Using the polynomial approximation method, the losses in the IGBT module have been calculated. A theoretical comparative study in terms of power losses is first carried out and then, it would be validated by simulation using Matlab / Simulink software. The results show that, the parallel inverter structure in high power PV systems improves the efficiency of the system by reducing the power losses generated by the IGBT modules.","PeriodicalId":271840,"journal":{"name":"2020 1st International Conference on Innovative Research in Applied Science, Engineering and Technology (IRASET)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124123883","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}
Pub Date : 2020-04-01DOI: 10.1109/IRASET48871.2020.9092276
L. Charaf, Imam Alihamidi, A. Addaim, A. Madi
IoT (Internet of Things) is the new technological revolution that enables the high connectivity of intelligent objects or devices both to each other or/and to humans. However, the major difficulty found in the use of this IoT technology is the lack of networking reference architectures and standards for this new paradigm. Moreover, security and privacy protection are foremost important issue to gain trust of IoT users. In this paper, we firstly present a comparative study of IoT security architectures previously proposed in the literature, then we investigate different works done in the field, based on the CIA triad (Confidentiality, Integrity and Availability) and the associated algorithms. The last part of this paper is devoted to study the proposed distributed model in order to face the IoT access control problems using the XACML language.
{"title":"A Distributed XACML based Access Control Architecture for IoT Systems","authors":"L. Charaf, Imam Alihamidi, A. Addaim, A. Madi","doi":"10.1109/IRASET48871.2020.9092276","DOIUrl":"https://doi.org/10.1109/IRASET48871.2020.9092276","url":null,"abstract":"IoT (Internet of Things) is the new technological revolution that enables the high connectivity of intelligent objects or devices both to each other or/and to humans. However, the major difficulty found in the use of this IoT technology is the lack of networking reference architectures and standards for this new paradigm. Moreover, security and privacy protection are foremost important issue to gain trust of IoT users. In this paper, we firstly present a comparative study of IoT security architectures previously proposed in the literature, then we investigate different works done in the field, based on the CIA triad (Confidentiality, Integrity and Availability) and the associated algorithms. The last part of this paper is devoted to study the proposed distributed model in order to face the IoT access control problems using the XACML language.","PeriodicalId":271840,"journal":{"name":"2020 1st International Conference on Innovative Research in Applied Science, Engineering and Technology (IRASET)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125154058","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}
In this work, we study the polarized infrared spectra of hybrid nanostructures (2T@SWCNTs) obtained by encapsulation of bithiophene (2T) in single wall carbon nanotube (SWCNTs). The calculation of the infrared spectrum is performed in the framework of the force constants model, using the spectral moments method. To derive the optimum configurations of 2T@SWCNTs, the minimum energy calculations using a convenient Lennard-Jones expression of the van der Waals intermolecular potential is devoted. The calculated results indicate that the minima correspond to nanotubes configurations with diameter close to 0.95 nm. A significant charge transfer on the inserted 2T was found by analyzing the infrared spectrum before and after encapsulation.
{"title":"Vibrational study of Bithiophene encapsulated in Single Wall Carbon Nanotube Using the Infrared Calculations","authors":"Chenouf Jamal, Boutahir Mourad, Fakrach Brahim, Rahmani Abdelhai, C. Hassane, Rahmani Abdelali","doi":"10.1109/IRASET48871.2020.9092200","DOIUrl":"https://doi.org/10.1109/IRASET48871.2020.9092200","url":null,"abstract":"In this work, we study the polarized infrared spectra of hybrid nanostructures (2T@SWCNTs) obtained by encapsulation of bithiophene (2T) in single wall carbon nanotube (SWCNTs). The calculation of the infrared spectrum is performed in the framework of the force constants model, using the spectral moments method. To derive the optimum configurations of 2T@SWCNTs, the minimum energy calculations using a convenient Lennard-Jones expression of the van der Waals intermolecular potential is devoted. The calculated results indicate that the minima correspond to nanotubes configurations with diameter close to 0.95 nm. A significant charge transfer on the inserted 2T was found by analyzing the infrared spectrum before and after encapsulation.","PeriodicalId":271840,"journal":{"name":"2020 1st International Conference on Innovative Research in Applied Science, Engineering and Technology (IRASET)","volume":"450 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131798972","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}
Pub Date : 2020-04-01DOI: 10.1109/IRASET48871.2020.9092113
Hadj Abdallah Saber, Tounsi Souhir
In this paper we presented a design procedure of a two-phases variable reluctance motor taking into account the interactions posed by the control law of this type of motor proposed in this study. This design procedure is based primarily on the analytical modeling of the studied engine followed by two-dimensional finite element validation. Associated with its control law, this type of engine can produce a very smooth mechanical torque. The obtained simulation results provide good scientific level and encourage the industrialization of this type of engine with its design and control program.
{"title":"Robust Design of Two Phases Switching Motor with Smooth Torque","authors":"Hadj Abdallah Saber, Tounsi Souhir","doi":"10.1109/IRASET48871.2020.9092113","DOIUrl":"https://doi.org/10.1109/IRASET48871.2020.9092113","url":null,"abstract":"In this paper we presented a design procedure of a two-phases variable reluctance motor taking into account the interactions posed by the control law of this type of motor proposed in this study. This design procedure is based primarily on the analytical modeling of the studied engine followed by two-dimensional finite element validation. Associated with its control law, this type of engine can produce a very smooth mechanical torque. The obtained simulation results provide good scientific level and encourage the industrialization of this type of engine with its design and control program.","PeriodicalId":271840,"journal":{"name":"2020 1st International Conference on Innovative Research in Applied Science, Engineering and Technology (IRASET)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133151551","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}
Pub Date : 2020-04-01DOI: 10.1109/IRASET48871.2020.9092173
Ikram Abourahim, M. Amghar, M. Eleuldj
Today interoperability in railway systems is a worldwide necessity especially in Europe. Indeed, multiple systems control the mobility of trains through borders from one country to another one, yet the communication of railway signaling interlocking between these borders is still a challenge. Some projects deal with the interoperability issue. ERTMS is one of them: it ensures an exchange between interlocking and the train. EULYNX is another project that standardises interfaces between field equipment and computer interlocking. Our paper presents an approach for interlocking communication all along the architecture of computer interlocking. Indeed, due to the evolution of computer interlocking technology, we are faced to many architectures depending on signaling principles of each country and also the proposition of each actor in the industry. Our approach will dress a vision of interoperability that relies on the architecture of Functional Blocks (FB) related to IEC 61499 standard and Service Oriented Architecture (SOA); this architecture allows an easy communication of relevant information but requires a high level of security.
{"title":"Interoperability of signaling interlocking and its Cyber-Security requirements*","authors":"Ikram Abourahim, M. Amghar, M. Eleuldj","doi":"10.1109/IRASET48871.2020.9092173","DOIUrl":"https://doi.org/10.1109/IRASET48871.2020.9092173","url":null,"abstract":"Today interoperability in railway systems is a worldwide necessity especially in Europe. Indeed, multiple systems control the mobility of trains through borders from one country to another one, yet the communication of railway signaling interlocking between these borders is still a challenge. Some projects deal with the interoperability issue. ERTMS is one of them: it ensures an exchange between interlocking and the train. EULYNX is another project that standardises interfaces between field equipment and computer interlocking. Our paper presents an approach for interlocking communication all along the architecture of computer interlocking. Indeed, due to the evolution of computer interlocking technology, we are faced to many architectures depending on signaling principles of each country and also the proposition of each actor in the industry. Our approach will dress a vision of interoperability that relies on the architecture of Functional Blocks (FB) related to IEC 61499 standard and Service Oriented Architecture (SOA); this architecture allows an easy communication of relevant information but requires a high level of security.","PeriodicalId":271840,"journal":{"name":"2020 1st International Conference on Innovative Research in Applied Science, Engineering and Technology (IRASET)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133011514","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：