Journal of Material Sciences & Manufacturing Research最新文献

{"title":"Using Transfer Learning to Reduce Preparing Time of Online Diagnosis with Limited Rotating-Component Data","authors":"Hao Tieng, Yu-Yong Li","doi":"10.47363/jmsmr/2022(3)140","DOIUrl":"https://doi.org/10.47363/jmsmr/2022(3)140","url":null,"abstract":"Under the environment of mass-customization, valid samples for a specific target object become fewer and fewer. Thus, Transfer Learning (TL) is widely applied to those data-consuming Deep Learning (DL) and Machine Learning (ML) models to avoid recollecting high-volume training samples from scratch. However, TL-based methods used in fault diagnosis for mechanical rotating components are still in the infancy phase. Poor practicality and usability problems increase the total preparing time. Without online diagnosis, there might be more unknown risks during the preparing time of a TL method. To reduce the preparing time of existing TL techniques, this paper proposes a TL-based Gradual Improvement Scheme (TLGIS) to achieve a systematic online diagnosis of rotating components. TLGIS solves the problem through seamless interactions among five modules of Data Preprocessing (DP), Data Estimating (DE), Data Modeling (DM), Model Improving (MI), and Accuracy Checking, (AC). Via illustrative examples, TLGIS is demonstrated to be reliable and robust using deep Convolutional Neural Networks (CNN) by two public bearing datasets from the Internet and two types of rotating wheel datasets from a practical CNC machine. In total, TLGIS only requires at least 80 samples and at most 250 samples divided into small-size batches to gradually and continuously fine-tune the model with an accuracy of 90% and 99%, respectively, instead of inputting a large-scale dataset all at once, which is unrealistic in a practical production scenario. Compared to conventional approaches, TLGIS efficiently saves at most 90% of preparing time.","PeriodicalId":210076,"journal":{"name":"Journal of Material Sciences & Manufacturing Research","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125155693","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":"Compressive and Flexural Strength of Non-Hydraulic Lime Mortar with Slag (GGBS)","authors":"Ash Ahmed, Charlotte Sutherland, C. Yates, Lee Yates, H. Nadir","doi":"10.47363/jmsmr/2022(3)137","DOIUrl":"https://doi.org/10.47363/jmsmr/2022(3)137","url":null,"abstract":"Mortar for masonry is important because it provides the bond between masonry units so enabling the composite to behave as a single material. The type of mortar used determines the flexural and compressive strength of the masonry. Currently, most mortars used in construction are cement based. However, due to the heavy energy-intensive processes that are involved in its production the cement industry is responsible for up to 10% of global CO2 emissions; therefore, there are serious environmental implications with the usage and application of cement mortars. A sustainable alternative are lime mortars which have 30% less embodied CO2. Lime mortars confer benefits in comparison to cement based mortars such as accommodating a greater degree of wall movement and improved damp resistance. The main disadvantage with lime mortars is the longer setting time which can take up to 91 days in addition to the low strength. A way to overcome this is to add cement replacements e.g pozzolans or slag. This paper investigates the properties of non-hydraulic (lime putty) lime mortar containing up to 20% ground granulated blastfurnace slag (GGBS). Findings show a minimal amount of GGBS addition of 2% doubles the mortar strength to 2 MPa within 91 days with an eventual strength of over 15 MPa achieved with 20% GGBS. Strengths satisfying minimum requirements for all four mortar designations were achieved with between 2 - 16% GGBS addition, all within 56 days ageing; with designations (i), (ii), (iii) & (iv) strengths being satisfied within 28 days. Therefore, non-hydraulic lime mortars with GGBS offer a more sustainable alternative to cement based mortars without compromising setting time or strength whilst offering improved flexibility and breathability","PeriodicalId":210076,"journal":{"name":"Journal of Material Sciences & Manufacturing Research","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124061806","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":"Equilibrium and Thermodynamic Studies for the Removal of Anionic Congo Red Dye by Carpobrotus Edulis Plant as Low-Cost Biomaterial","authors":"R. Aziam","doi":"10.47363/jmsmr/2022(3)138","DOIUrl":"https://doi.org/10.47363/jmsmr/2022(3)138","url":null,"abstract":"Organic synthetic dyes are widely used in textile industry. The presence of dyes in the effluents is a major concern due to their effect on health and environment. Thus, these pollutants must be removed from wastewaters by appropriate treatments before their evacuation. In this regard, much attention has recently been paid to dried plants as low cost biomaterials. In the present study, we aimed to investigate the removal of Congo red dye (CR) from aqueous solutions by Carpobrotus edulis plant as natural adsorbent using batch adsorption technique at room temperature. The effect of contact time, pH, dye concentration, and adsorbent dose on the removal of dye was also studied. The experimental data were analyzed by using mathematical models to determine the thermodynamic parameters. The negative values of free energy change indicated the spontaneous nature of the adsorption and negative value of enthalpy change suggested the exothermic nature of the adsorption process. The characterization of the dried plant was studied by using different methods such as; BET method, SEM‐EDX and Elemental analysis techniques. Overall the results of the present study show that C. edulis plant can be successfully used for removal of anionic textile dyes from industry effluents.","PeriodicalId":210076,"journal":{"name":"Journal of Material Sciences & Manufacturing Research","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122028937","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":"Chemical Catalytic Applications of Nanocomposites in Photo Reactors: Review","authors":"Mohan Reddy K","doi":"10.47363/jmsmr/2022(3)139","DOIUrl":"https://doi.org/10.47363/jmsmr/2022(3)139","url":null,"abstract":"Nanocomposites as a photocatalysts are chosen for the photocatalytic degradation of organic pollutant molecules. Noble metal decorated mixed metal oxides composite and reduced graphene oxide deposited metal oxide nanocomposites are of cost-effective photocatalysts. Nanocomposites are act as better photocatalysts due to their tunable surface characteristics as acidic and basic properties, advanced oxidation or reduction abilities makes them unique approach for heterogeneous photocatalysts. Development of cheaper semiconductor photocatalysts, which are highly effective and reusable photocatalytic applications of nanocomposites under visible light, is very challenging materials. We prepared cost-effective ternary mixed metal oxide nanocomposites chemical catalysts with rGO with heterojunctions of rGO-ZnO-TiO2 -Nb2 O5 labelled as rGZTNb for efficient photo catalysis in photo reactor under visible light radiations for chemical catalysis. Author described about eh development effect of heterogeneous photocatalysts. Heterogeneous visible light photocatalysts of semiconductor mediated materials at the nanometer scale have paid much attention towards the past decade due to their beneficial strategies in the photocatalytic usage. ZnO and TiO2 along with Nb2 O5 nanocomposite combinations as solid powders can significantly enhance light absorption, then separation pairs of electron-hole by photogeneraton","PeriodicalId":210076,"journal":{"name":"Journal of Material Sciences & Manufacturing Research","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122009785","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 Hematite Nano Particles from Galvanizing Effluents for the Applications in Heavy Metal Removal","authors":"Rajapakshe Rbsd, Gangani Pwdp, Thennakoon Ca, Prabath Nilan Gunasekara, Nirosh Siriwardene, Niyangodaa Ss, Rajapakse Rmg","doi":"10.47363/jmsmr/2022(3)132","DOIUrl":"https://doi.org/10.47363/jmsmr/2022(3)132","url":null,"abstract":"Due to climate change on earth, governments are pursuing the policy of gradually reducing Greenhouse Effects. For example, country like Germany has The demand for safe drinking water grows day by day together with the increasing world population. Meanwhile water resources become increasingly scarce, and quality of natural water decreases due to a combination of natural and anthropogenic factors. Industry and agriculture have become a premiere source of hazardous constituents, along with natural processes such as rock weathering and volcanic eruptions. The ability to remove hazardous components, particularly heavy metals from water depends on the selected technology and nature of pollutant. Water purification technologies, mostly involved with sorption and ion-exchange processes, often uses natural iron oxides as ion-exchangers for removal of harmful contaminants from water. These technologies are based on the unique cation-exchange behavior of iron oxides, thus making this sorbent limited to cation removal. Arsenic, copper and nickel are commonly found in water supplies and, therefore, are selected for this study to represent heavy metals in water systems. In this work, hematite nanomaterials were synthesized from the galvanizing effluent collected from the LTL Galvanizers at Makola, Sri Lanka. The industry generates approximately 50 m3 of galvanizing effluent per month and it composes both iron and zinc chlorides. To synthesize pure iron oxide materials, we used the effluents from none re-galvanized chemical baths, which does not contain any zinc chlorides. The synthesized materials were characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM). Sorption behaviors of As(III), Cu(II) and Ni(II) were examined batch-wise as a function of pH, temperature, contact time, adsorbent dosage and initial metal ion concentration. Residual concentrations of As(III), Cu(II) and Ni(II) in the solution were determined by the inductively coupled plasma mass spectroscopy (ICP-MS). The adsorption studies were performed by changing one of the conditions while keeping all others fixed. According to the results, maximum percent removals (%) for all metal ions tested were reached within a short period of 30 minutes. For a given parameter the maximum percent removal (%) of both Cu(II) and As(III) reached more than 95%, while the Ni(II) had percent removal between 35% and 65%.","PeriodicalId":210076,"journal":{"name":"Journal of Material Sciences & Manufacturing Research","volume":"202 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121437897","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":"Application of Modern Polymer Packaging for Food","authors":"Verkhivker Yg, Myroshnichenko Em","doi":"10.47363/jmsmr/2022(3)130","DOIUrl":"https://doi.org/10.47363/jmsmr/2022(3)130","url":null,"abstract":"The object of the study is a polymer combined C-PET packaging two-section, which consists of a polymer semi-rigid container-tray of multilayer PET /EVOH / CPP and multilayer polyethylene film S900775 PET / PE (for sealing containers). In the food industry can be used consumer polymer packaging of various types: hard, semi-hard, soft and others. In order for such packaging to be used for heat sterilization of products, it must have the necessary heat-resistant barrier layer. C-PET packaging is made of heat-resistant barrier material, which ensures its resistance to high temperatures. Therefore, such containers can be used for heat sterilization and guarantee long shelf life of food. Each polymeric material has certain indicators of heat resistance. One of the most problematic places on this issue is the lack of technological parameters of polymer C-PET packaging, such as the strength of the sealing of the package and the parameters of sterilization of packaging with the product for specific thermal equipment: temperature, time, back pressure. Without the values of such characteristics, it is impossible to use containers in food production to produce good quality products for long-term storage. The study used methods such as measuring the sealing strength or depressurization pressure of the container, which occurs during sterilization due to thermal expansion of the product; the standard membrane compensation method was used for this purpose. The development of sterilization regimes for food products was carried out in accordance with the approved regulations. The regulations include analytical calculation of the regime that ensures the production of industrially sterile canned food, laboratory testing of the selected regime and its production testing. Methods of calculating the sterilization regime are based on data on the heat resistance of the strain of microorganisms in the test culture. Studies have been carried out, which resulted in the value of the parameter of sealing strength or depressurization pressure of C-PET containers, without which it is impossible to carry out effective thermal sterilization of the product. Exceeding the required value of this pressure can lead to depressurization of the packaging and the emergence of physical defects, of substandard products. Also, scientifically based high-temperature sterilization regimes for meat and vegetable products in the studied form of polymer consumer packaging have been developed, which will allow companies to produce quality food safe for consumption, with high nutritional value and long shelf life","PeriodicalId":210076,"journal":{"name":"Journal of Material Sciences & Manufacturing Research","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117138974","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":"Synthesis and Reactivity of Glutaraldehyde Diperoxide in Isopropanol Solution","authors":"Bordón Ag, Jorge Mj, J. Lc, Profeta Mi, R. Jm, Jorge Nl","doi":"10.47363/jmsmr/2022(3)133","DOIUrl":"https://doi.org/10.47363/jmsmr/2022(3)133","url":null,"abstract":"We have committed ourselves to the study of cyclic organic peroxides with two peroxy functions in their molecules, motivated by the multiple uses and application possibilities found for these compounds. In this paper, we analyze the thermal decomposition kinetics of 3, 6-dibutanal-1, 2, 4, 5-tetroxane (DPG) in isopropanol solution. At the concentration (1.06x10-3M) and temperatures studied (403-439 K), the kinetics satisfactorily fulfills with a first-order kinetic law up to 80% conversion of the diperoxide. From the kinetic data obtained experimentally, the activation parameters were determined DH# = 53.80 kJ mol-1± 0.6 and DS# = -170. 51 ± 0.7 J mol-1 K-1 different correlations and treatments could be made. The results obtained prior to this work were included in the analyses, to establish comparisons","PeriodicalId":210076,"journal":{"name":"Journal of Material Sciences & Manufacturing Research","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133825427","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":"Study on Severe Accidents of the New Generation WWER-1200 Reactor","authors":"Ali Ashraf Bagheri, Bahman Zohuri","doi":"10.47363/jmsmr/2022(3)134","DOIUrl":"https://doi.org/10.47363/jmsmr/2022(3)134","url":null,"abstract":"As the safety of new generation reactors regarding conditions of radioactive material leakage into the environment greatly attracted the attention of engineers and scientists in the nuclear industry, because if these nuclear radioactive materials enter the environment, they will leave irreversible influences on humans and the environment for years, hence, it is environmentally very essential to investigate the safety of nuclear reactors. The wwer-1200 reactor is a reactor under preparation, and many investigation has been performed on its safety, and all research has revealed that this reactor is safe during all accidents. In this research, numerous severe accidents were examined in this reactor. The results indicated that in only one case this reactor go beyond its design safety situations, which is the concurrent incidence of cooling-water loss and a fracture in the lower part of the reactor chamber without emergency cooling systems. And the results revealed the temperature of the fuel pellet and fuel sheath as the central safety layer","PeriodicalId":210076,"journal":{"name":"Journal of Material Sciences & Manufacturing Research","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125863114","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":"Contribution to the Understanding of Carbon Diffusion in Ferrite: Simulation Modelling","authors":"Growene W Queirós, L. García, Stefan Rafael Ruíz Delgado, J. Meseguer-Sánchez, J. M. G. Salazar, A. Criado","doi":"10.47363/jmsmr/2022(3)136","DOIUrl":"https://doi.org/10.47363/jmsmr/2022(3)136","url":null,"abstract":"This research is focused on testing how the austenite breakthrough occurs in ferrite at a temperature of 850ºC. For this purpose, an experiment has been designed to deal with this fact at this temperature. A piece of F-114 steel was placed in contact with a piece of ARMCO iron. The F-114 steel at 850ºC transforms into austenite while the ARMCO iron remains as ferrite. The breakthrough takes place by slow diffusion of the carbon from the F-114 steel into the ferritic ARMCO iron matrix. This feed increases the carbon content of the ARMCO iron until it transforms it into austenite. The intimate contact between ARMCO iron and austenite has been carried out by hot forging without exceeding 850ºC. The metallographic study was carried out by scanning electron microscopy","PeriodicalId":210076,"journal":{"name":"Journal of Material Sciences & Manufacturing Research","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126732261","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":"Functional Materials for Fusion Nuclear Power Cores (A Technical Memorandum)","authors":"Rahele Zadfathollah Seighalani, Bahman Zohuri","doi":"10.47363/jmsmr/2022(3)129","DOIUrl":"https://doi.org/10.47363/jmsmr/2022(3)129","url":null,"abstract":"Nuclear energy science is nothing new, since World War II (WW II) and the successful Manhattan Project started in the deserts of New Mexico around 1940’s with Fermi introducing his experimental fission reactor in basement of University of Chicago in state of Illinois. Following that project and the exploring application of atom energy for peaceful goals using famous Einstein’s theory E=mc^2 has turned a new chapter for nuclear power energy by introducing a new source for electricity production. Fusion nuclear power generation that totally works in opposite direction that of fission nuclear power by splitting atoms nuclei of high Z-materials such as Uranium (U) or Plutonium (Pu), it uses the technology of thermonuclear reaction concepts driven by two isotopes of Hydrogen elements mainly Deuterium (D) and Tritium (T). Recent progress in research towards the development of fusion power driven by means of magnetic confinement approach, using reactor such as Tokamak device and the impressive advances research made in this particular reactor in the past few years, seems very promising to strike break-even of thermonuclear driven fusion reaction taking into consideration approach of Magnetic Confinement Fusion (MCF). Tokamak devices currently under construction will demonstrate the break-even condition or scientific feasibility of fusion power. Exciting and innovative ideas in mirror magnetic confinement are expected to culminate in high-Q devices making open-ended confinement a serious contender for fusion reactors. However, with such an innovative approach comes its own technical challenges associated with the machinery such as Tokamak that internally requires in a harsh temperature that in nature can be seen at the surface of our Sun, thus we are in need of materials that can sustain such high-temperature heat and be able to maintain their integrity and extend the life-cycle of such device while in full commercial operation within period of 24x7x360. Here in this Technical Memorandum (TM), we discuss potential materials that are possibly can deliver such sustainability one need them to operate within high-temperature and maintain their both physical and chemical properties from physics of solid-states point of view. With also today’s research in Nanotechnology and Memory-metals reaching to such a goal seems to be achievable, which is subject of this Technical Memorandum (TM)","PeriodicalId":210076,"journal":{"name":"Journal of Material Sciences & Manufacturing Research","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128091451","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}