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Using high-performance expanders is one of the keys to improve the efficiency of Organic Rankine Cycle (ORC). However, in large expansion ratio conditions, the performance deterioration caused by under-expansion seriously affects the performances of the ORC. For single-screw expanders, it is possible to utilize the kinetic energy of the screw groove exhaust to produce extra power. But there is still a lack of theoretical support for optimizing the exhaust kinetic energy utilization process of this new expander at present. Therefore, the energy conversion mechanism of Single Screw Expander with exhaust Kinetic energy Utilization (SSEKU) was investigated in this paper, and a mathematical model of SSEKU was developed to investigate the energy conversion mechanisms and predict the performances. The results show that introducing exhaust kinetic energy utilization process in single screw expander can reduce under-expansion losses effectively, and the effects in large size expanders were stronger than that in small scale machines. It was also found that the maximum increase in isentropic efficiency was 3.01, 5.47, and 9.38 percentage points for the expander with a screw diameter of 117 mm, 200 mm, and 350 mm, respectively.
Biao Lei; Qing-Zhi Yan; Yu-Ting Wu; Chong-Fang Ma; Li-Li Shen; Xiang Li. A study on the single screw expander with exhaust kinetic energy utilization in organic Rankine cycle conditions. Energy Conversion and Management 2021, 245, 114641 .
AMA StyleBiao Lei, Qing-Zhi Yan, Yu-Ting Wu, Chong-Fang Ma, Li-Li Shen, Xiang Li. A study on the single screw expander with exhaust kinetic energy utilization in organic Rankine cycle conditions. Energy Conversion and Management. 2021; 245 ():114641.
Chicago/Turabian StyleBiao Lei; Qing-Zhi Yan; Yu-Ting Wu; Chong-Fang Ma; Li-Li Shen; Xiang Li. 2021. "A study on the single screw expander with exhaust kinetic energy utilization in organic Rankine cycle conditions." Energy Conversion and Management 245, no. : 114641.
The organic Rankine cycle is a mature small-scale power generation technology for harnessing low- to mid-temperature heat sources. However, the low efficiency of the cycle still hinders its widespread implementation. To optimize the cycle’s performance, it is crucial to identify the source and magnitude of losses within each component of the cycle. This study, thus, aims to investigate the irreversible losses and their effect on the performance of the system. A prototype organic Rankine cycle (ORC) with the exhaust of a diesel engine as the heat source was developed to experimentally investigate the system and ascertain the losses. The experiments were performed at steady-state conditions at different evaporation pressures from 1300 kPa to 1600 kPa. The exergy loss and exergetic efficiency of the individual component and the overall system was estimated from the experimentally measurement of the pressure, temperature, and mass flow rate. The results indicate that the exergy losses of the evaporator are almost 60 kW at different evaporation pressures and the exergy loss rate is from 69.1% to 65.1%, which accounted for most of the total exergy loss rate in the organic Rankine cycle system. Meanwhile, the highest shaft efficiency and exergetic efficiency of the screw expander are 49.8% and 38.4%, respectively, and the exergy losses and exergy loss rate of the pump and pipe are less than 0.5 kW and 1%. Due to the relatively higher exergy loss of the evaporator and the low efficiency of expander, the highest exergetic efficiency of the organic Rankine cycle system is about 10.8%. The study concludes that the maximum improvement potential lies in the evaporator, followed by the expander.
Yeqiang Zhang; Biao Lei; Zubair Masaud; Muhammad Imran; Yuting Wu; Jinping Liu; Xiaoding Qin; Hafiz Ali Muhammad. Waste Heat Recovery from Diesel Engine Exhaust Using a Single-Screw Expander Organic Rankine Cycle System: Experimental Investigation of Exergy Destruction. Energies 2020, 13, 5914 .
AMA StyleYeqiang Zhang, Biao Lei, Zubair Masaud, Muhammad Imran, Yuting Wu, Jinping Liu, Xiaoding Qin, Hafiz Ali Muhammad. Waste Heat Recovery from Diesel Engine Exhaust Using a Single-Screw Expander Organic Rankine Cycle System: Experimental Investigation of Exergy Destruction. Energies. 2020; 13 (22):5914.
Chicago/Turabian StyleYeqiang Zhang; Biao Lei; Zubair Masaud; Muhammad Imran; Yuting Wu; Jinping Liu; Xiaoding Qin; Hafiz Ali Muhammad. 2020. "Waste Heat Recovery from Diesel Engine Exhaust Using a Single-Screw Expander Organic Rankine Cycle System: Experimental Investigation of Exergy Destruction." Energies 13, no. 22: 5914.
Nitrate eutectic salts are widely applied as heat transfer and thermal energy storage medium for solar thermal power plant, and the corrosion of the nitrate eutectic salt to the system device has become challenge to the safety operation under high temperature. In this work, the dynamic corrosion behavior of 316 and 321 stainless steels in Solar Salt with the velocity of 1 m/s, 2 m/s and 3 m/s had been experimentally investigated at 565 °C under air atmosphere. The weight loss data showed that the velocity of molten salt had a significant influence on the corrosion process of 316 and 321 steel. The corrosion parabolic rate was obtained by the linear fitting, which showed slightly increasing with the increasing of flow velocity. The macro-characteristics, micro-morphology and the thickness of the multilayer corrosion product were observed and analyzed by the SEM and BEI. Meanwhile, the transformation with the outer elements of O, Fe, Mg and Na to O, Fe, Cr and Ni in the inner oxide layer was revealed in the multilayer oxide structure by EDS. It could be drawn that the corrosion resistance of the two stainless steels was highly affected by the passivation behavior of enrichment of Cr and Ni, which were observed in the inner oxide layer and confirmed as the mixed of (Fe, Cr, Ni)3O4 by the XRD. In addition, the phenomenon of eroding and accelerated dissolution were observed on both stainless steels, which caused the increasing corrosion at dynamic environment.
XiaoMing Zhang; Cancan Zhang; Yuting Wu; Yuanwei Lu. Experimental research of high temperature dynamic corrosion characteristic of stainless steels in nitrate eutectic molten salt. Solar Energy 2020, 209, 618 -627.
AMA StyleXiaoMing Zhang, Cancan Zhang, Yuting Wu, Yuanwei Lu. Experimental research of high temperature dynamic corrosion characteristic of stainless steels in nitrate eutectic molten salt. Solar Energy. 2020; 209 ():618-627.
Chicago/Turabian StyleXiaoMing Zhang; Cancan Zhang; Yuting Wu; Yuanwei Lu. 2020. "Experimental research of high temperature dynamic corrosion characteristic of stainless steels in nitrate eutectic molten salt." Solar Energy 209, no. : 618-627.
Molten salt is a major heat storage medium for medium–high temperature solar thermal power applications. The heat storage density and heat transfer efficiency of molten salt are important factors of solar thermal power efficiency. Recently, many studies have reported that molten salt nanofluid, which is formed by adding nanoparticles in molten salt, can remarkably enhance the specific heat capacity of molten salt. However, research on the forced convection heat transfer of molten salt nanofluid is inadequate. In this study, the forced convection heat transfer experiments were carried out in a circular tube of a previously reported promising molten salt nanofluid composed of KNO3–Ca(NO3)2 + 1 wt% of 20 nm SiO2 nanoparticles (K-C-Snm). Results showed that compared with its base pure molten salt, the K-C-Snm molten salt nanofluid exhibited substantially better forced convection heat transfer performance under the same working condition. The Nusselt number and the convective heat transfer coefficient of K-C-Snm molten salt nanofluid were 16.3% and 39.9% higher than its base pure molten salt, respectively. The experimental data of K-C-Snm molten salt nanofluid largely differed from the classical correlation equations. Hence, a new empirical heat transfer correlation equation was set for K-C-Snm molten salt nanofluid, and the deviation between the experiment data and new correlation was within ±7%.
Hu Chen; Xia Chen; Yu-Ting Wu; Yuan-Wei Lu; Xin Wang; Chong-Fang Ma. Experimental study on forced convection heat transfer of KNO3–Ca(NO3)2 + SiO2 molten salt nanofluid in circular tube. Solar Energy 2020, 206, 900 -906.
AMA StyleHu Chen, Xia Chen, Yu-Ting Wu, Yuan-Wei Lu, Xin Wang, Chong-Fang Ma. Experimental study on forced convection heat transfer of KNO3–Ca(NO3)2 + SiO2 molten salt nanofluid in circular tube. Solar Energy. 2020; 206 ():900-906.
Chicago/Turabian StyleHu Chen; Xia Chen; Yu-Ting Wu; Yuan-Wei Lu; Xin Wang; Chong-Fang Ma. 2020. "Experimental study on forced convection heat transfer of KNO3–Ca(NO3)2 + SiO2 molten salt nanofluid in circular tube." Solar Energy 206, no. : 900-906.
Solar reflectors are exposed to outdoor environments where dust accumulation is a primary degrading factor on optical performance. In this study, the effect of dust accumulation on reflectivity at different positions on the reflector of a parabolic trough solar thermal power plant in Hohhot, China was investigated and analyzed. The physical and chemical properties of dust accumulation were tested using a combination of spectrophotometer, scanning electron microscopy, and X-ray diffraction. The results showed that dust accumulation on the bottom edge of the reflector caused the largest decrease in reflectivity compared to dust on the center and top edge. In addition, dust particles at Hohhot were dominated by quartz (SiO2, 53.5%), followed by calcium oxide (CaCO3, 25.4%), and some minor feldspar minerals (NaAlSi3O8, 21.1%). However, some characteristics of the dust could not be determined by experimental measurements. To address this gap, a physical model was proposed to predict the impact of dust accumulation on light reflectivity of the reflector. Different physical parameters of the model are discussed, such as the size of the particles, diaphaneity, the incidence light angle, and tilt angle. The maximum relative deviation between the mathematical model and the experimental results was only 1%.
Ze Wu; Suying Yan; Zefeng Wang; Tingzhen Ming; Xiaoyan Zhao; Rui Ma; Yuting Wu. The effect of dust accumulation on the cleanliness factor of a parabolic trough solar concentrator. Renewable Energy 2020, 152, 529 -539.
AMA StyleZe Wu, Suying Yan, Zefeng Wang, Tingzhen Ming, Xiaoyan Zhao, Rui Ma, Yuting Wu. The effect of dust accumulation on the cleanliness factor of a parabolic trough solar concentrator. Renewable Energy. 2020; 152 ():529-539.
Chicago/Turabian StyleZe Wu; Suying Yan; Zefeng Wang; Tingzhen Ming; Xiaoyan Zhao; Rui Ma; Yuting Wu. 2020. "The effect of dust accumulation on the cleanliness factor of a parabolic trough solar concentrator." Renewable Energy 152, no. : 529-539.
Heat dissipation was the one of the irreversible losses of expanders. For small capacity expanders, the influence of it on the performance of expanders might be more significant. Single screw expander (SSE) was a type of volumetric expander, which has a certain advantages in the Organic Rankine Cycle system. Investigating the characteristics of heat transfer in SSE was necessary because of the influence on the performance. This study discussed the effect of heat transfer on thermodynamic performance for a SSE. Combined leakage and heat transfer, the thermodynamic model of working process was established firstly. Lubricating oil heat absorption was considered in heat transfer model. For heat transfer in the body, it was divided into 17 parts and calculated the temperature distribution by lumped parameter method. The coupling model was computational programmed by the method of multiple separate solutions. Then, experimental study on heat dissipation of SSE for Organic Rankine Cycle was carried out and verified the model. R123 was selected as working fluid. Finally, the influence of heat transfer on the performance of the SSE was analyzed from different influence factors. From the simulation results, the range of heat transfer influence for the power was from 1.91% to 4.51%, and that for the efficiency was from 2.72% to 5.78%, under the different working conditions. Moreover, the effect of heat transfer on performance at low inlet pressure was greater than that at high inlet pressure. It can also be seen that the effect of heat transfer on the efficiency was greater than that on the power. Therefore, it could be concluded that the effect of heat transfer on the performance of SSEs was relatively small.
Wei Wang; Li-Li Shen; Ru-Meng Chen; Yu-Ting Wu; Chong-Fang Ma. Numerical study of heat transfer influence on the performance of a single screw expander for Organic Rankine Cycle. Energy 2019, 193, 116683 .
AMA StyleWei Wang, Li-Li Shen, Ru-Meng Chen, Yu-Ting Wu, Chong-Fang Ma. Numerical study of heat transfer influence on the performance of a single screw expander for Organic Rankine Cycle. Energy. 2019; 193 ():116683.
Chicago/Turabian StyleWei Wang; Li-Li Shen; Ru-Meng Chen; Yu-Ting Wu; Chong-Fang Ma. 2019. "Numerical study of heat transfer influence on the performance of a single screw expander for Organic Rankine Cycle." Energy 193, no. : 116683.
Mangrove forest trees play important ecological functions at the interface between terrestrial and marine ecosystems. However, despite playing crucial roles in plant health and productivity, there is little information on microbiomes of the tree species in mangrove ecosystems. Thus, in this study we aimed to characterize the microbiome in soil (rhizosphere) and plant (root, stem, and leaf endosphere) compartments of the widely distributed mangrove tree Rhizophora stylosa. Surprisingly, bacterial operational taxonomic units (OTUs) were only confidently detected in rhizosphere soil, while fungal OTUs were detected in all soil and plant compartments. The major detected bacterial phyla were affiliated to Proteobacteria, Actinobacteria, Planctomycetes, and Chloroflexi. Several nitrogen-fixing bacterial OTUs were detected, and the presence of nitrogen-fixing bacteria was confirmed by nifH gene based-PCR in all rhizosphere soil samples, indicating their involvement in N acquisition in the focal mangrove ecosystem. We detected taxonomically (54 families, 83 genera) and functionally diverse fungi in the R. stylosa mycobiome. Ascomycota (mainly Dothideomycetes, Eurotiomycetes, Sordariomycetes) were most diverse in the mycobiome, accounting for 86% of total detected fungal OTUs. We found significant differences in fungal taxonomic and functional community composition among the soil and plant compartments. We also detected significant differences in fungal OTU richness (p < 0.002) and community composition (p < 0.001) among plant compartments. The results provide the first information on the microbiome of rhizosphere soil to leaf compartments of mangrove trees and associated indications of ecological functions in mangrove ecosystems.
Witoon Purahong; Dolaya Sadubsarn; Benjawan Tanunchai; Sara Fareed Mohamed Wahdan; Chakriya Sansupa; Matthias Noll; Yu-Ting Wu; François Buscot. First Insights into the Microbiome of a Mangrove Tree Reveal Significant Differences in Taxonomic and Functional Composition among Plant and Soil Compartments. Microorganisms 2019, 7, 585 .
AMA StyleWitoon Purahong, Dolaya Sadubsarn, Benjawan Tanunchai, Sara Fareed Mohamed Wahdan, Chakriya Sansupa, Matthias Noll, Yu-Ting Wu, François Buscot. First Insights into the Microbiome of a Mangrove Tree Reveal Significant Differences in Taxonomic and Functional Composition among Plant and Soil Compartments. Microorganisms. 2019; 7 (12):585.
Chicago/Turabian StyleWitoon Purahong; Dolaya Sadubsarn; Benjawan Tanunchai; Sara Fareed Mohamed Wahdan; Chakriya Sansupa; Matthias Noll; Yu-Ting Wu; François Buscot. 2019. "First Insights into the Microbiome of a Mangrove Tree Reveal Significant Differences in Taxonomic and Functional Composition among Plant and Soil Compartments." Microorganisms 7, no. 12: 585.
Yuting Wu; Zhiyu Guo; Biao Lei; Lili Shen; Ruiping Zhi. Internal volume ratio optimization and performance analysis for single-screw expander in small-scale middle temperature ORC system. Energy 2019, 186, 115799 .
AMA StyleYuting Wu, Zhiyu Guo, Biao Lei, Lili Shen, Ruiping Zhi. Internal volume ratio optimization and performance analysis for single-screw expander in small-scale middle temperature ORC system. Energy. 2019; 186 ():115799.
Chicago/Turabian StyleYuting Wu; Zhiyu Guo; Biao Lei; Lili Shen; Ruiping Zhi. 2019. "Internal volume ratio optimization and performance analysis for single-screw expander in small-scale middle temperature ORC system." Energy 186, no. : 115799.
Chemical looping gasification (CLG) is regarded as an innovative and promising technology for producing syngas. In this work, CLG of straw was conducted in a fixed bed reactor with Fe2O3 as the oxygen carrier, whose results led to conclusions that Fe2O3, the oxygen carrier, proved advantageous to the secondary gasification reaction and the formation of CO and CO2. It was also found that CO was further oxidized to CO2 at high Fe2O3/C molar ratio, which resulted in a decreased gasification efficiency and low heat value of syngas. Therefore, a conclusion was drawn that the most optimized Fe2O3/C molar ratio was 0.2. In addition, the alkali metals in the biomass evaporated as chlorine salts into gas phase and retained as alkali metal oxide at high temperature, resulting in coking, slagging and heating surface corrosion. In the mean time, the oxygen carrier mainly converted to Fe and sintering phenomenon was serious at high temperature despite the fact that high temperature promoted gas yield, carbon conversion efficiency and gasification efficiency. Therefore, the most optimized temperature was set to 800°C in order to maximize gas yield and gasification efficiency.
Yuting Wu; Yanfen Liao; Guicai Liu; Xiaoqian Ma; Hengjin Zhang. Reactivity investigation on biomass chemical looping conversion for syngas production. Journal of the Energy Institute 2019, 92, 1137 -1148.
AMA StyleYuting Wu, Yanfen Liao, Guicai Liu, Xiaoqian Ma, Hengjin Zhang. Reactivity investigation on biomass chemical looping conversion for syngas production. Journal of the Energy Institute. 2019; 92 (4):1137-1148.
Chicago/Turabian StyleYuting Wu; Yanfen Liao; Guicai Liu; Xiaoqian Ma; Hengjin Zhang. 2019. "Reactivity investigation on biomass chemical looping conversion for syngas production." Journal of the Energy Institute 92, no. 4: 1137-1148.
Short-read next generation sequencing (NGS) platforms can easily and quickly generate thousands to hundreds of thousands of sequences per sample. However, the limited length of these sequences can cause problems during fungal taxonomic identification. Here we validate the use of Pacbio sequencing, a long-read NGS method, for characterizing the fungal community (mycobiome) of Castanopsis carlesii deadwood. We report the successful use of Pacbio sequencing to generate long-read sequences of the full-length (500–780 bp) fungal ITS regions of the C. carlesii mycobiome. Our results show that the studied deadwood mycobiome is taxonomically and functionally diverse, with an average of 85 fungal OTUs representing five functional groups (animal endosymbionts, endophytes, mycoparasites, plant pathogens, and saprotrophs). Based on relative abundance data, Basidiomycota were the most frequently detected phyla (50% of total sequences), followed by unidentified phyla, and Ascomycota. However, based on presence/absence data, the most OTU-rich phyla were Ascomycota (58% of total OTUs, 72 OTUs) followed by Basidiomycota and unidentified phyla. The majority of fungal OTUs were identified as saprotrophs (70% of successfully function-assigned OTUs) followed by plant pathogens. Finally, we used phylogenetic analysis based on the full-length ITS sequences to confirm the species identification of 14/36 OTUs with high bootstrap support (99–100%). Based on the numbers of sequence reads obtained per sample, which ranged from 3,047 to 13,463, we conclude that Pacbio sequencing can be a powerful tool for characterizing moderate- and possibly high-complexity fungal communities.
Witoon Purahong; Ausana Mapook; Yu-Ting Wu; Chaur-Tzuhn Chen. Characterization of the Castanopsis carlesii Deadwood Mycobiome by Pacbio Sequencing of the Full-Length Fungal Nuclear Ribosomal Internal Transcribed Spacer (ITS). Frontiers in Microbiology 2019, 10, 983 .
AMA StyleWitoon Purahong, Ausana Mapook, Yu-Ting Wu, Chaur-Tzuhn Chen. Characterization of the Castanopsis carlesii Deadwood Mycobiome by Pacbio Sequencing of the Full-Length Fungal Nuclear Ribosomal Internal Transcribed Spacer (ITS). Frontiers in Microbiology. 2019; 10 ():983.
Chicago/Turabian StyleWitoon Purahong; Ausana Mapook; Yu-Ting Wu; Chaur-Tzuhn Chen. 2019. "Characterization of the Castanopsis carlesii Deadwood Mycobiome by Pacbio Sequencing of the Full-Length Fungal Nuclear Ribosomal Internal Transcribed Spacer (ITS)." Frontiers in Microbiology 10, no. : 983.
Endolithic microbes in coral skeletons are known to be a nutrient source for the coral host. In addition to aerobic endolithic algae and Cyanobacteria, which are usually described in the various corals and form a green layer beneath coral tissues, the anaerobic photoautotrophic green sulfur bacteria (GSB) Prosthecochloris is dominant in the skeleton of Isopora palifera. However, due to inherent challenges in studying anaerobic microbes in coral skeleton, the reason for its niche preference and function are largely unknown. This study characterized a diverse and dynamic community of endolithic microbes shaped by the availability of light and oxygen. In addition, anaerobic bacteria isolated from the coral skeleton were cultured for the first time to experimentally clarify the role of these GSB. This characterization includes GSB's abundance, genetic and genomic profiles, organelle structure, and specific metabolic functions and activity. Our results explain the advantages endolithic GSB receive from living in coral skeletons, the potential metabolic role of a clade of coral-associated Prosthecochloris (CAP) in the skeleton, and the nitrogen fixation ability of CAP. We suggest that the endolithic microbial community in coral skeletons is diverse and dynamic and that light and oxygen are two crucial factors for shaping it. This study is the first to demonstrate the ability of nitrogen uptake by specific coral-associated endolithic bacteria and shed light on the role of endolithic bacteria in coral skeletons.
Shan-Hua Yang; Kshitij Tandon; Chih-Ying Lu; Naohisa Wada; Chao-Jen Shih; Silver Sung-Yun Hsiao; Wann-Neng Jane; Tzan-Chain Lee; Chi-Ming Yang; Chi-Te Liu; Vianney Denis; Yu-Ting Wu; Li-Ting Wang; Lina Huang; Der-Chuen Lee; Hideyuki Yamashiro; Sen-Lin Tang. Metagenomic, phylogenetic, and functional characterization of predominant endolithic green sulfur bacteria in the coral Isopora palifera. Microbiome 2019, 7, 3 .
AMA StyleShan-Hua Yang, Kshitij Tandon, Chih-Ying Lu, Naohisa Wada, Chao-Jen Shih, Silver Sung-Yun Hsiao, Wann-Neng Jane, Tzan-Chain Lee, Chi-Ming Yang, Chi-Te Liu, Vianney Denis, Yu-Ting Wu, Li-Ting Wang, Lina Huang, Der-Chuen Lee, Hideyuki Yamashiro, Sen-Lin Tang. Metagenomic, phylogenetic, and functional characterization of predominant endolithic green sulfur bacteria in the coral Isopora palifera. Microbiome. 2019; 7 (1):3.
Chicago/Turabian StyleShan-Hua Yang; Kshitij Tandon; Chih-Ying Lu; Naohisa Wada; Chao-Jen Shih; Silver Sung-Yun Hsiao; Wann-Neng Jane; Tzan-Chain Lee; Chi-Ming Yang; Chi-Te Liu; Vianney Denis; Yu-Ting Wu; Li-Ting Wang; Lina Huang; Der-Chuen Lee; Hideyuki Yamashiro; Sen-Lin Tang. 2019. "Metagenomic, phylogenetic, and functional characterization of predominant endolithic green sulfur bacteria in the coral Isopora palifera." Microbiome 7, no. 1: 3.
Jing Wu; Chong Li; Yongchang Liu; Yuting Wu; Qianying Guo; Huijun Li; Haipeng Wang. Effect of annealing treatment on microstructure evolution and creep behavior of a multiphase Ni3Al-based superalloy. Materials Science and Engineering: A 2019, 743, 623 -635.
AMA StyleJing Wu, Chong Li, Yongchang Liu, Yuting Wu, Qianying Guo, Huijun Li, Haipeng Wang. Effect of annealing treatment on microstructure evolution and creep behavior of a multiphase Ni3Al-based superalloy. Materials Science and Engineering: A. 2019; 743 ():623-635.
Chicago/Turabian StyleJing Wu; Chong Li; Yongchang Liu; Yuting Wu; Qianying Guo; Huijun Li; Haipeng Wang. 2019. "Effect of annealing treatment on microstructure evolution and creep behavior of a multiphase Ni3Al-based superalloy." Materials Science and Engineering: A 743, no. : 623-635.
Seru production can be used to enhance productivity, such as makespan reduction and manpower saving. Seru system operation includes two NP-hard problems, i.e., seru formation and seru scheduling. The exact solution cannot be obtained by solving only one of seru formation and seru scheduling. We develop a cooperative coevolution algorithm for the Seru production with minimizing makespan by solving the seru formation and seru scheduling simultaneously. The cooperative coevolution algorithm includes two evolution algorithms, i.e., the algorithm combining generic algorithm and local search, and the ant colony optimization algorithm. The former algorithm is used to deal with the evolution of seru formation. The latter is used to find a better seru scheduling. In the cooperative mechanism, the two algorithms cooperate to seek a better solution of seru system operation. Finally, extensive-tested experiments show that the proposed cooperative coevolution algorithm can obtain a better solution than all the existing algorithms and, even, can obtain the exact solution for some medium-and-small instances.
Wei Sun; Yuting Wu; Qi Lou; Yang Yu. A Cooperative Coevolution Algorithm for the Seru Production With Minimizing Makespan. IEEE Access 2019, 7, 5662 -5670.
AMA StyleWei Sun, Yuting Wu, Qi Lou, Yang Yu. A Cooperative Coevolution Algorithm for the Seru Production With Minimizing Makespan. IEEE Access. 2019; 7 ():5662-5670.
Chicago/Turabian StyleWei Sun; Yuting Wu; Qi Lou; Yang Yu. 2019. "A Cooperative Coevolution Algorithm for the Seru Production With Minimizing Makespan." IEEE Access 7, no. : 5662-5670.
During pyrolysis of holocellulose, secondary reactions of the primary pyrolytic products are inevitable to occur, affecting the final pyrolytic product distribution. Carboxylic acids from primary pyrolysis process have significant interaction effects on both holocellulose and its pyrolytic products, whereas, the interaction mechanisms are still unclear. In the present study, acetic acid is selected as the typical carboxylic acid product, and glycerol is selected to represent the various hydroxyl-based compounds (both holocellulose and pyrolytic products such as anhydrosugars, etc.). Density functional theory (DFT) method is adopted to investigate the interaction mechanisms between them. Calculation results indicate that acetic acid and glycerol have strong interactions, with acetic acid acting as a catalyst for these interactions in two patterns. I. Acetic acid enhances the dehydration reactions of glycerol with low energy barriers. II. Acetic acid and glycerol undergo esterification to form an ester intermediate which then decomposes via various reactions. In addition, the decomposition of acetic acid can also be promoted by the catalysis of glycerol in a certain degree. This study reveals the basic interaction mechanisms between carboxylic acids and hydroxyl-based compounds, providing fundamental information to understand the secondary reactions during pyrolysis of holocellulose.
Bin Hu; Qiang Lu; Yu-Ting Wu; Ji Liu; Kai Li; Chang-Qing Dong; Yong-Ping Yang. Interaction between Acetic Acid and Glycerol: A Model for Secondary Reactions during Holocellulose Pyrolysis. The Journal of Physical Chemistry A 2018, 123, 674 -681.
AMA StyleBin Hu, Qiang Lu, Yu-Ting Wu, Ji Liu, Kai Li, Chang-Qing Dong, Yong-Ping Yang. Interaction between Acetic Acid and Glycerol: A Model for Secondary Reactions during Holocellulose Pyrolysis. The Journal of Physical Chemistry A. 2018; 123 (3):674-681.
Chicago/Turabian StyleBin Hu; Qiang Lu; Yu-Ting Wu; Ji Liu; Kai Li; Chang-Qing Dong; Yong-Ping Yang. 2018. "Interaction between Acetic Acid and Glycerol: A Model for Secondary Reactions during Holocellulose Pyrolysis." The Journal of Physical Chemistry A 123, no. 3: 674-681.
Background: Delivery of foreign cargoes into cells is of great value for bioengineering research and therapeutic applications. Objective: In this study, we proposed and established a carrier-free gene delivery platform utilizing staggered herringbone channel and silicon nanoneedle array, to achieve high-throughput in vitro gene transfection. Methods: With this microchip, fluidic micro vortices could be induced by the staggered-herringboneshaped grooves within the channel, which increased the contact frequency of the cells with the channel substrate. Transient disruptions on the cell membrane were well established by the nanoneedle array on the substrate. Result: Compared to the conventional nanoneedle-based delivery system, proposed microfluidic chip achieved flow-through treatment with high gene transfection efficiency (higher than 20%) and ideal cell viability (higher than 95%). It provides a continuous processing environment that can satisfy the transfection requirement of large amounts of biological molecules, showing high potential and promising prospect for both basic research and clinical application.
Dong Huang; Deyao Zhao; Jinhui Li; Yuting Wu; Lili Du; Xin-Hua Xia; Xiaoqiong Li; Yulin Deng; Zhihong Li; Yuanyu Huang. Continuous Vector-free Gene Transfer with a Novel Microfluidic Chip and Nanoneedle Array. Current Drug Delivery 2018, 16, 164 -170.
AMA StyleDong Huang, Deyao Zhao, Jinhui Li, Yuting Wu, Lili Du, Xin-Hua Xia, Xiaoqiong Li, Yulin Deng, Zhihong Li, Yuanyu Huang. Continuous Vector-free Gene Transfer with a Novel Microfluidic Chip and Nanoneedle Array. Current Drug Delivery. 2018; 16 (2):164-170.
Chicago/Turabian StyleDong Huang; Deyao Zhao; Jinhui Li; Yuting Wu; Lili Du; Xin-Hua Xia; Xiaoqiong Li; Yulin Deng; Zhihong Li; Yuanyu Huang. 2018. "Continuous Vector-free Gene Transfer with a Novel Microfluidic Chip and Nanoneedle Array." Current Drug Delivery 16, no. 2: 164-170.
In real-time movement controlling systems, it is essential to deploy a suitable sensor to measure tilt angle on-line. When the tilt angle is bigger than the preset threshold, the remedial operation should be made timely. This paper proposes an on-line dynamic tilt angle measurement method by compensating gyroscope drift error. First, gyroscope is selected as a measuring unit because it can overcome the interference of external forces to measure dynamic angular speed. Second, an improved least squares support vector machine (LSSVM) is proposed for gyroscope drift-error compensation. The vector base learning method is used to reduce those less important support vectors, and the sparsity of LSSVM can be changed by adjusting the value of θ . Third, the quantum-behaved particle swarm optimization algorithm is introduced as the optimization method to optimize regularization parameter C and kernel parameter ɣ of LSSVM model because it has good optimization result and fast convergence speed. Fourth, the experiment platform and implementation process are illustrated in detail. Finally, the corresponding experimental results demonstrate that the proposed methodology could measure the dynamic tilt angle accurately.
Luqiang Shi; Yigang He; Bing Li; Yuting Wu; Yuan Huang; Tongtong Cheng. On-Line Measurement of Dynamic Tilt Angle by Compensating Gyroscope Drift Error. IEEE Transactions on Instrumentation and Measurement 2018, 68, 3244 -3252.
AMA StyleLuqiang Shi, Yigang He, Bing Li, Yuting Wu, Yuan Huang, Tongtong Cheng. On-Line Measurement of Dynamic Tilt Angle by Compensating Gyroscope Drift Error. IEEE Transactions on Instrumentation and Measurement. 2018; 68 (9):3244-3252.
Chicago/Turabian StyleLuqiang Shi; Yigang He; Bing Li; Yuting Wu; Yuan Huang; Tongtong Cheng. 2018. "On-Line Measurement of Dynamic Tilt Angle by Compensating Gyroscope Drift Error." IEEE Transactions on Instrumentation and Measurement 68, no. 9: 3244-3252.
Gearboxes find extensive use in a wide variety of fields. Over the years, a great deal of research has been devoted to prevention of gear failures and gear noise. Devising an optimal design is often considered as the most important stage in the development of a new gearbox. Similar to the varying requirements of different applications, the directions and method of gearbox design optimization are also varied. Usually, gear geometry optimization has a great influence on the strength and transmission error which is the excitation factor that affects the noise level. The main objective of this article is to summarize common optimization methods that have been recently studied by scholars. Moreover, a review of recent patents status quo, both domestic and overseas, is carried out.
Zhen Qin; Yu-Ting Wu; Sung-Ki Lyu. A Review of Recent Advances in Design Optimization of Gearbox. International Journal of Precision Engineering and Manufacturing 2018, 19, 1753 -1762.
AMA StyleZhen Qin, Yu-Ting Wu, Sung-Ki Lyu. A Review of Recent Advances in Design Optimization of Gearbox. International Journal of Precision Engineering and Manufacturing. 2018; 19 (11):1753-1762.
Chicago/Turabian StyleZhen Qin; Yu-Ting Wu; Sung-Ki Lyu. 2018. "A Review of Recent Advances in Design Optimization of Gearbox." International Journal of Precision Engineering and Manufacturing 19, no. 11: 1753-1762.
Lower BMI, larger tumor size, pathologic evidence of multifocal disease, and no preoperative MRI evaluation were associated with increased risk for positive surgical margin involvement. DCIS with positive surgical margins was associated with increased risk for reoperation and residual cancer detection at re-excision.
Hung-Wen Lai; Ren-Hung Huang; Yu-Ting Wu; Chih-Jung Chen; Shou-Tung Chen; Ying-Jen Lin; Dar-Ren Chen; Chih-Wei Lee; Hwa-Koon Wu; Hui-Yu Lin; Shou-Jen Kuo. Clinicopathologic factors related to surgical margin involvement, reoperation, and residual cancer in primary operable breast cancer – An analysis of 2050 patients. European Journal of Surgical Oncology (EJSO) 2018, 44, 1725 -1735.
AMA StyleHung-Wen Lai, Ren-Hung Huang, Yu-Ting Wu, Chih-Jung Chen, Shou-Tung Chen, Ying-Jen Lin, Dar-Ren Chen, Chih-Wei Lee, Hwa-Koon Wu, Hui-Yu Lin, Shou-Jen Kuo. Clinicopathologic factors related to surgical margin involvement, reoperation, and residual cancer in primary operable breast cancer – An analysis of 2050 patients. European Journal of Surgical Oncology (EJSO). 2018; 44 (11):1725-1735.
Chicago/Turabian StyleHung-Wen Lai; Ren-Hung Huang; Yu-Ting Wu; Chih-Jung Chen; Shou-Tung Chen; Ying-Jen Lin; Dar-Ren Chen; Chih-Wei Lee; Hwa-Koon Wu; Hui-Yu Lin; Shou-Jen Kuo. 2018. "Clinicopathologic factors related to surgical margin involvement, reoperation, and residual cancer in primary operable breast cancer – An analysis of 2050 patients." European Journal of Surgical Oncology (EJSO) 44, no. 11: 1725-1735.
The metabolic regulation of cell death is sophisticated. A growing body of evidence suggests the existence of multiple metabolic checkpoints that dictate cell fate in response to metabolic fluctuations. However, whether microRNAs (miRNAs) are able to respond to metabolic stress, reset the threshold of cell death, and attempt to reestablish homeostasis is largely unknown. Here, we show that miR-378/378* KO mice cannot maintain normal muscle weight and have poor running performance, which is accompanied by impaired autophagy, accumulation of abnormal mitochondria, and excessive apoptosis in skeletal muscle, whereas miR-378 overexpression is able to enhance autophagy and repress apoptosis in skeletal muscle of mice. Our in vitro data show that metabolic stress-responsive miR-378 promotes autophagy and inhibits apoptosis in a cell-autonomous manner. Mechanistically, miR-378 promotes autophagy initiation through the mammalian target of rapamycin (mTOR)/unc-51-like autophagy activating kinase 1 (ULK1) pathway and sustains autophagy via Forkhead box class O (FoxO)-mediated transcriptional reinforcement by targeting phosphoinositide-dependent protein kinase 1 (PDK1). Meanwhile, miR-378 suppresses intrinsic apoptosis initiation directly through targeting an initiator caspase—Caspase 9. Thus, we propose that miR-378 is a critical component of metabolic checkpoints, which integrates metabolic information into an adaptive response to reduce the propensity of myocytes to undergo apoptosis by enhancing the autophagic process and blocking apoptotic initiation. Lastly, our data suggest that inflammation-induced down-regulation of miR-378 might contribute to the pathogenesis of muscle dystrophy.
Yan Li; Jingjing Jiang; Wei Liu; Hui Wang; Lei Zhao; Shengnan Liu; Peng Li; Shengjie Zhang; Chao Sun; Yuting Wu; Shuxian Yu; Xihua Li; Hui Zhang; Haifeng Qian; Duo Zhang; Feifan Guo; Qiwei Zhai; Qiurong Ding; Li Wang; Hao Ying. microRNA-378 promotes autophagy and inhibits apoptosis in skeletal muscle. Proceedings of the National Academy of Sciences 2018, 115, E10849 -E10858.
AMA StyleYan Li, Jingjing Jiang, Wei Liu, Hui Wang, Lei Zhao, Shengnan Liu, Peng Li, Shengjie Zhang, Chao Sun, Yuting Wu, Shuxian Yu, Xihua Li, Hui Zhang, Haifeng Qian, Duo Zhang, Feifan Guo, Qiwei Zhai, Qiurong Ding, Li Wang, Hao Ying. microRNA-378 promotes autophagy and inhibits apoptosis in skeletal muscle. Proceedings of the National Academy of Sciences. 2018; 115 (46):E10849-E10858.
Chicago/Turabian StyleYan Li; Jingjing Jiang; Wei Liu; Hui Wang; Lei Zhao; Shengnan Liu; Peng Li; Shengjie Zhang; Chao Sun; Yuting Wu; Shuxian Yu; Xihua Li; Hui Zhang; Haifeng Qian; Duo Zhang; Feifan Guo; Qiwei Zhai; Qiurong Ding; Li Wang; Hao Ying. 2018. "microRNA-378 promotes autophagy and inhibits apoptosis in skeletal muscle." Proceedings of the National Academy of Sciences 115, no. 46: E10849-E10858.
Identifiers chosen by programmers convey rich semantic information that could be exploited to enhance program analysis for various software engineering tasks, e.g., anomaly detection, argument recommendation, and code completion. However, such information has not yet been fully exploited, and little is known about its properties. In this paper, we carry out an empirical study to investigate the lexical similarity between the actual argument and the formal parameter names in method invocations. By analyzing actual arguments and formal parameters from 127 Java applications and 30 open-source C applications, we observe a number of interesting and valuable findings concerning the distribution of similarity, reasons for dissimilarity, and so on. Such findings have been exploited to facilitate argument-related software engineering tasks, i.e., anomaly detection and code completion.
Guangjie Li; Hui Liu; Qiurong Liu; Yuting Wu. Lexical Similarity Between Argument and Parameter Names: An Empirical Study. IEEE Access 2018, 6, 58461 -58481.
AMA StyleGuangjie Li, Hui Liu, Qiurong Liu, Yuting Wu. Lexical Similarity Between Argument and Parameter Names: An Empirical Study. IEEE Access. 2018; 6 ():58461-58481.
Chicago/Turabian StyleGuangjie Li; Hui Liu; Qiurong Liu; Yuting Wu. 2018. "Lexical Similarity Between Argument and Parameter Names: An Empirical Study." IEEE Access 6, no. : 58461-58481.