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| 1 | High-quality industrial n-type silicon wafers with an efficiency of over 23% for Si heterojunction solar cells显示文摘展示更长的少数搬运人一生和某些金属污染的更高的忍耐的 n 类型 CZ-Si 晶片能提供最好的基于 Si 的太阳能电池之一。在这研究,在顶与不同晶片被制作的 Si heterojuction ( SHJ )太阳能电池,中间和铸块锭的尾巴位置,展出了稳定的高效率>22%尽管有抵抗力和一生的各种各样的侧面,它表明了n类型铸块锭的高材料利用。为有效地把日光变换成电力,另外,金字塔尺寸,金字塔密度和 Cz-Si 晶片的表面的粗糙被扫描电子显微镜(SEM ) 和传播电子显微镜(TEM ) 调查。而且, SHJ 太阳能电池的依赖表面地形学上的开电路的电压被讨论,它显示表面金字塔的一致性帮助改进开电路的电压和变换效率。而且,模拟表明 SHJ 太阳能电池的最高的效率能被晶片与 100 m 的厚度完成。幸好,有 100 m 的晶片厚度的 SHJ 太阳能电池的超过 23% 变换效率在飞行员生产线基于房间制造过程的系统的优化被获得。显然,两 n 类型铸块锭的大可获得性和更薄的晶片强烈支持了高效率 SHJ 太阳能电池的更低的费用制造。 | Fanying MENG Jinning LIU Leilei SHEN Jianhua SHI Anjun HAN Liping ZHANG Yucheng LIU Jian YU Junkai ZHANG Rui ZHOU Zhengxin LIU | 2017 | Frontiers in Energy2017，11，1： | 3 |
| 2 | Comparative transcriptomic insights into the mechanisms of electron transfer in Geobacter co-cultures with activated carbon and magnetite显示文摘Both activated carbon and magnetite have been reported to promote the syntrophic growth of Geobacter metallireducens and Geobacter sulfurreducens co-cultures, the first model to show direct interspecies electron transfer (DIET); however, differential transcriptomics of the promotion on co-cultures with these two conductive materials are unknown. Here, the comparative transcriptomic analysis of G. metallireducens and G. sulfurreducens co-cultures with granular activated carbon (GAC) and magnetite was reported. More than 2.6-fold reduced transcript abundances were determined for the uptake hydrogenase genes of G. sulfurreducens as well as other hydrogenases in those co-cultures to which conductive materials had been added. This is consistent with electron transfer in G. metallireducens-G. sulfurreducens co-cultures as evinced by direct interspecies electron transfer (DIET). Transcript abundance for the structural component of electrically conductive pili (e-pili), PilA, was 2.2-fold higher in G. metallireducens, and, in contrast, was 14.9-fold lower in G. sulfurreducens in co-cultures with GAC than in Geobacters co-cultures without GAC. However, it was 9.3-fold higher in G. sulfurreducens in co-cultures with magnetite than in Geobacters co-cultures. Mutation results showed that GAC can be substituted for the e-pili of both strains but magnetite can only compensate for that of G. sulfurreducens, indicating that the e-pili is a more important electron acceptor for the electron donor strain of G. metallireducens than for G. sulfurreducens. Transcript abundance for G. metallireducens c-type cytochrome gene GMET_RS14535, a homologue to c-type cytochrome gene omcE of G. sulfurreducens was 9.8-fold lower in co-cultures with GAC addition, while that for OmcS of G. sulfurreducens was 25.1-fold higher in co-cultures with magnetite, than in that without magnetite. Gene deletion studies showed that neither GAC nor magnetite can completely substitute the cytochrome (OmcE homologous) of G. metallireducens but compensate for the cytochrome (OmcS) of G. sulfurreducens. Moreover, some genes associated with central metabolism were up-regulated in the presence of both GAC and magnetite; however, tricarboxylic acid cycle gene transcripts in G. sulfurreducens were not highly-expressed in each of these amended co-cultures, suggesting that there was considerable redundancy in the pathways utilised by G. sulfurreducens for electron transfer to reduce fumarate with the amendment of GAC or magnetite. These results support the DIET model of G. metallireducens and G. sulfurreducens and suggest that e-pili and cytochromes of the electron donor strain are more important than that of the electron acceptor strain, indicating that comparative transcriptomics may be a promising route by which to reveal different responses of electron donor and acceptor during DIET in co-cultures. | Shiling Zheng Fanghua Liu Meng Li Leilei Xiao Oumei Wang | 2018 | Science China(Life Sciences)2018，61，7： | 2 |
| 3 | Generative adversarial network-based atmospheric scattering model for image dehazing显示文摘This paper presents a trainable Generative Adversarial Network(GAN)-based end-to-end system for image dehazing,which is named the DehazeGAN.DehazeGAN can be used for edge computing-based applications,such as roadside monitoring.It adopts two networks:one is generator(G),and the other is discriminator(D).The G adopts the U-Net architecture,whose layers are particularly designed to incorporate the atmospheric scattering model of image dehazing.By using a reformulated atmospheric scattering model,the weights of the generator network are initialized by the coarse transmission map,and the biases are adaptively adjusted by using the previous round's trained weights.Since the details may be blurry after the fog is removed,the contrast loss is added to enhance the visibility actively.Aside from the typical GAN adversarial loss,the pixel-wise Mean Square Error(MSE)loss,the contrast loss and the dark channel loss are introduced into the generator loss function.Extensive experiments on benchmark images,the results of which are compared with those of several state-of-the-art methods,demonstrate that the proposed DehazeGAN performs better and is more effective. | Jinxiu Zhu Leilei Meng Wenxia Wu Dongmin Choi Jianjun Ni | 2021 | Digital Communications and Networks2021，7，2： | 1 |
| 4 | High-temperature wear mechanisms of TiNbWN films:Role of nanocrystalline oxides formation显示文摘Réfractory high/medium entropy nitrides(HENs/MENs)exhibit comprehensive application prospects as protective films on mechanical parts,particularly those subjected to sliding contacts at elevated temperatures.In this study,a new MEN system TiNbWN,forming a single fc solution,is designed and its wear performance at temperatures ranging from 25 to 750℃is explored.The wear mechanisms can be rationalized by examining the subsurface microstructural evolutions using the transmission electron microscopy as well as calculating the phase diagrams and interfacial adhesion behavior employing calculation of phase diagram(CALPHAD)and density functional theory(DFT).To be specific,increased wear losses occur in a temperature range of 25-600℃,being predominantly caused by the thermally-induced hardness degradation;whereas at the ultimate temperature(750℃),the wear loss is refrained due to the formation of nanocrystalline oxides(WnO_(3n-2r)TiO_(2),and TiOx),as synergistically revealed by microscopy and CALPHAD,which not only enhance the mechanical properties of the pristine nitride film,but also act as solid lubricants,reducing the interfacial adhesion.Thus,our work delineates the role of the in situ formed nanocrystalline oxides in the wear mechanism transition of TiNbWN thin films,which could shed light on the high-temperature wear behavior of refractory HEN/MENfilms. | Leilei CHEN Zhenyu ZHANG Ming LOU Kai XU Lu WANG Fanning MENG Denis MUSIC Keke CHANG | 2023 | Friction2023，11，3： | 0 |
| 5 | Release and sedimentation behaviors of biochar colloids in soil solutions显示文摘The release of biochar colloids considerably affects the stability of biochar in environment.Currently,information on the release behavior and suspension stability of biochar colloids in real soil solutions is scarce.In this study,20 soils were collected from different districts in China and the release behavior of biochar colloids and their suspension stability in soil solutions were systematically examined.The results showed that both pyrolysis temperature and biomass source had important effects on the formation of biochar colloids in soil solutions.The formation amount of biochar colloids from low pyrolysis temperatures(400℃)(average amount of 9.33-16.41 mg/g)were significantly higher than those from high pyrolysis temperatures(700℃)(average amount of less than 2 mg/g).The formation amount of wheat straw-derived biochar colloids were higher than those of rice straw-derived biochar colloids probably due to the higher O/C ratio in wheat-straw biochar.Further,biochar colloidal formation amount was negatively correlated with comprehensive effect of dissolved organic carbon,Fe and Al in soil solutions.The sedimentation curve of biochar colloids in soil solutions is well described by an exponential model and demonstrated high suspension stability.Around 40%of the biochar colloids were maintained in the suspension at the final sedimentation equilibrium.The settling efficiency of biochar colloids was positively correlated with comprehensive effect of the ionic strength and K,Ca,Na,and Mg contents in soil solutions.Our findings help promote a deeper understanding of biochar loss and stability in the soil-water environment. | Qingkang Meng Liang Jin Leilei Cheng Jing Fang Daohui Lin | 2021 | Journal of Environmental Sciences2021，33，2： | 0 |
| 6 | Neighborhood Modularization‑based Artificial Bee Colony Algorithm for Disassembly Planning with Operation Attributes显示文摘The recycling and remanufacturing of end-of-life products are significant for environmental protection and resource conservation.Disassembly is an essential process of remanufacturing end-of-life products.Effective disassembly plans help improve disassembly efficiency and reduce disassembly costs.This paper studies a disassembly planning problem with operation attributes,in which an integrated decision of the disassembly sequence,disassembly directions,and disassembly tools are made.Besides,a mathematical model is formulated with the objective of minimizing the penalty cost caused by the changing of operation attributes.Then,a neighborhood modularization-based artificial bee colony algorithm is developed,which contains a modular optimized design.Finally,two case studies with different scales and complexities are used to verify the performance of the proposed approach,and experimental results show that the proposed algorithm outperforms the two existing methods within an acceptable computational time. | Hongfei Guo Linsheng Zhang Yaping Ren Leilei Meng Zhongwei Zhou Jianqing Li | 2022 | Chinese Journal of Mechanical Engineering2022，35，6： | 0 |
| 7 | Modeling the effects of extreme high-temperature stress at anthesis and grain filling on grain protein in winter wheat显示文摘Extreme high-temperature stress(HTS) associated with climate change poses potential threats to wheat grain yield and quality. Wheat grain protein concentration(GPC) is a determinant of wheat quality for human nutrition and is often neglected in attempts to assess climate change impacts on wheat production. Crop models are useful tools for quantification of temperature impacts on grain yield and quality.Current crop models either cannot simulate or can simulate only partially the effects of HTS on crop N dynamics and grain N accumulation. There is a paucity of observational data on crop N and grain quality collected under systematic HTS scenarios to develop algorithms for model improvement as well as evaluate crop models. Two-year phytotron experiments were conducted with two wheat cultivars under HTS at anthesis, grain filling, and both stages. HTS significantly reduced total aboveground N and increased the rate of grain N accumulation, while total aboveground N and the rate of grain N accumulation were more sensitive to HTS at anthesis than at grain filling. The observed relationships between total aboveground N, rate of grain N accumulation, and HTS were quantified and incorporated into the WheatGrow model. The new HTS routines improved simulation of the dynamics of total aboveground N, grain N accumulation, and GPC by the model. The improved model provided better estimates of total aboveground N, grain N accumulation, and GPC under HTS(the normalized root mean square error was reduced by 40%, 85%, and 80%, respectively) than the original WheatGrow model. The improvements in the model enhance its applicability to the assessment of climate change effects on wheat grain quality by reducing the uncertainties of simulating N dynamics and grain quality under HTS. | Raheel Osman Yan Zhu Weixing Cao Zhifeng Ding Meng Wang Leilei Liu Liang Tang Bing Liu | 2021 | The Crop Journal2021，9，4： | 0 |
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