Browsing SINTEF Open by Author "Ma, Xiang"
Now showing items 1-13 of 13
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Data quality issues for vibration sensors: a case study in ferrosilicon production
Waszak, Maryna; Moen, Terje; Eidnes, Sølve; Stasik, Alexander Johannes; Hansen, Anders; Bouquet, Gregory; Pultier, Antoine; Ma, Xiang; Tørlen, Idar; Henriksen, Bjørn; Aamodt, Arianeh; Roman, Dumitru (Chapter, 2022)Digitisation in the mining and metal processing industries plays a key role in their modernisation. Production processes are more and more supported by a variety of sensors that produce large amounts of data that meant to ... -
Data quality issues in solar panels installations: a case study
Roman, Dumitru; Pultier, Antoine; Ma, Xiang; Soylu, Ahmet; Ulyashin, Alexander (Chapter, 2022)Solar photovoltaics (PV) is becoming an important source of global electricity generation. Modern PV installations come with a variety of sensors attached to them for monitoring purposes (e.g., maintenance, prediction of ... -
Dynamic changes in habitat quality and the driving mechanism in the Luoxiao Mountains area from 1995 to 2020
Guo, Ke; Niu, Xiang; Wang, Bing; Xu, Tingyu; Ma, Xiang (Peer reviewed; Journal article, 2023)The strengthening of regional habitat quality is crucial to protect biodiversity and fully utilize ecosystem services such as those provided by forestry and aquatic ecosystems. However, the long-term patterns of change in ... -
The influence of parent austenite characteristics on the intervariant boundary network in a lath martensitic steel
Mirzaei, Ahmad; Ghaderi, Razieh; Hodgson, Peter D.; Ma, Xiang; Rohrer, Gregory S.; Beladi, Hossein (Peer reviewed; Journal article, 2022)The influence of the parent austenite deformation state on the intervariant boundary network (i.e., population, plane orientation, and connectivity) of a lath martensitic microstructure was investigated using conventional ... -
Laser welding of niobium to AISI 304 steel using a copper interlayer
Zhao, Jian; Shi, Mingxiao; Li, Yanjun; Ma, Xiang; Fang, Zhenxing; Yan, Hua (Peer reviewed; Journal article, 2020)Cu interlayers with thicknesses of 1, 1.5, and 2 mm were used to join niobium and AISI 304 steel. Fractures occurred in the weld, the Nb base metal, and the unmelted Cu interlayer when the Cu interlayer thickness was 1, ... -
Magnesiothermic Reduction of Silica: A Machine Learning Study
Tang, Kai; Rasouli, Azam; Safarian, Jafar; Ma, Xiang; Tranell, Maria Gabriella (Journal article; Peer reviewed, 2023)undamental studies have been carried out experimentally and theoretically on the magnesiothermic reduction of silica with different Mg/SiO2 molar ratios (1–4) in the temperature range of 1073 to 1373 K with different ... -
Molecular Dynamics Simulation for Structural Evolution of Mixed Ash from Coal and Wheat Straw
Ji, Hengsong; Li, Xiang; Zhang, Mei; Li, Zhenqiang; Zhou, Yan; Ma, Xiang (Peer reviewed; Journal article, 2022)We conducted molecular dynamics (MD) simulations to investigate the structural evolution of molten slag composed of wheat straw (WS) and Shenhua (SH) coal. The content of wheat straw in the slag was varied from 0 to 100 ... -
Molecular Dynamics Simulation of Heat Transfer at Contact Interface of Hot Forming Die
Lu, Baoshan; Wang, Leigang; Ma, Xiang (Peer reviewed; Journal article, 2019) -
Numerical modelling of high-power laser spot melting of thin stainless steel
Bunaziv, Ivan; Danielsen, Morten Høgseth; Eriksson, Magnus Carl Fredrik; Ma, Xiang; Ren, Xiaobo; Godinez Brizuela, Omar Emmanuel; Skjetne, Paal (Peer reviewed; Journal article, 2023)Numerical modelling is an important scientific tool in laser materials processing to study different melting, evaporation, and solidification phenomena. It can assist in understanding why certain defects are formed, and ... -
Optimisation of cutting parameters for improving energy efficiency in machining process
Hu, Luoke; Tang, Renzhong; Cai, Wei; Feng, Yixiong; Ma, Xiang (Journal article; Peer reviewed, 2019)Reducing the machining energy consumption (MEC) of machine tools for turning operations is significant to promote sustainable manufacturing. It has been approved that selecting optimal cutting (turning) parameters is an ... -
Regulation of welding residual stress in laser-welded AISI 304 steel-niobium joints using a Cu interlayer
Shi, Mingxiao; Chen, Jiugong; Li, Jingyong; Mao, Weidong; Li, Shengliang; Ma, Xiang; Ni, Huifeng; Xia, Haochun (Peer reviewed; Journal article, 2021)Residual stress and deformation in a welded joint will significantly reduce its service life, and thus the analysis and regulation of residual stresses are very important. In this paper, a SYSWELD software was used to ... -
Research on Advanced Treatment Technology of Fluorine Containing Wastewater from Graphite Production
Liu, Yanli; Qiao, Jiyang; Ma, Xiang; Zhao, Zhilong; Liu, Fengbiao; Shen, Shifu (Chapter, 2023)With the gradual improvement of environmental emission requirements in China, the graphite industry is facing environmental pressure from advanced treatment. This article first conducted a study on the current status of ... -
Vibration Sensors for Detecting Critical Events: A Case Study in Ferrosilicon Production
Waszak, Maryna; Moen, Terje; Hansen, Anders; Bouquet, Gregory; Pultier, Antoine; Ma, Xiang; Roman, Dumitru (Peer reviewed; Journal article, 2024)The mining and metal processing industries are undergoing a transformation through digitization, with sensors and data analysis playing a crucial role in modernization and increased efficiency. Vibration sensors are ...