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91篇 您的检索式:作者名="Lujia"
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1Review of grain threshing theory and technology显示文摘Threshing is the most important function of grain harvester.Grain loss and damage in harvesting are significantly related to threshing theory and technology.There are four kinds of threshing principles including impact,rubbing,combing and grinding.Four types of contact models between grain and threshing components have been constructed correspondently.Grain damage can be regarded as a function of peripheral velocity and contact pattern of impacting.Grain loss can be regarded as a function of contact pattern of rasp bars.Grain loss coming from cleaning and separation in the subsequent process of combing threshing was significantly decreased.Tangential and axial threshing technologies have been applied in grain threshing system widely.It showed that in the combined application,tangential rolls are used to accelerate grain flow,and axial rolls are used to increase threshing quality especially lower loss and damage.Conical concave may take the place of the traditional cylindrical one.With the development of sensor technology and communication technology,intelligent harvesting robot and automatic threshing system will be integrated together to improve grain quality and operation comfort.Jun Fu Zhi Chen Lujia Han Luquan Ren 2018International Journal of Agricultural and Biological Engineering2018,11,3:5
2Volumetric Changes in Hippocampal Subregions and Memory Performance in Mesial Temporal Lobe Epilepsy with Hippocampal Sclerosis显示文摘In the present study we explored the different patterns of volumetric atrophy in hippocampal subregions of patients with left and right mesial temporal lobe epilepsy with hippocampal sclerosis(TLE-HS). Meanwhile, the memory impairment patterns in Chinese-speaking TLE-HS patients and potential influencing factors were also determined. TLE-HS patients(21 left and 17 right) and 21 healthy controls were recruited to complete T2-weighted imaging and verbal/nonverbal memory assessment. The results showed that both left and right TLE-HS patients had overall reduced hippocampal subregion volumes on the sclerotic side, and cornu ammonis sectors(CA1) exhibited maximum atrophy. The verbal memory of left TLE-HS patients was significantly impaired(P \ 0.001) and was not associated with the volumes of the left hippocampal subregions. Verbal or nonverbal memory impairment was not found in the patients with right TLE-HS. These results suggested that the atrophy of hippocampal subregion volumes cannot account for the verbal memory impairment, which might be related to the functional network.Caihong Ji Lujia Zhu Cong Chen Shuang Wang Leilei Zheng Hong Li 2018Neuroscience Bulletin2018,34,2:4
3Genomic profiling and the impact of MUC19 mutation in hepatoid adenocarcinoma of the stomach显示文摘Dear Editor,Hepatoid adenocarcinoma(HAC)is a rare pathological subtype of extrahepatic tumor,featured by hepatoid differentiation andα-fetoprotein(AFP)-production[1,2].Hepatoid adenocarcinoma of the stomach(HAS),accounting for 0.3%to 1.0%of all gastric cancers(GCs),has attracted increasing attention due to its high degree of malignancy[3].Compared with classic GC,HAS showed a higher rate of vascular invasion,lymph node metastasis,and liver metastasis,with only 9.0%survival rate at 5 years[4].Currently,there is no effective treatment for HAS,and little is known about its pathogenesis.Herein,we investigated the molecular features of HAS and identified potential therapeutic targets for HAS.Mengxuan Zhu Erbao Chen Shan Yu Chen Xu Yiyi Yu Xin Cao Wei Li Pengfei Zhang Yan Wang Baofeng Lian Shuirong Zhang Yueting Qu Lujia Huang Weiwei Shi Yuehong Cui Li Qian Tianshu Liu 2022Cancer Communications2022,42,10:3
4Catalysis performance comparison of a Br?nsted acid H_2SO_4 and a Lewis acid Al_2(SO_4)_3 in methyl levulinate production from biomass carbohydrates显示文摘An experimental investigation was conducted to understand the roles of the Br?nsted acid H_2SO_4 and Lewis acid Al_2(SO_4)_3 in methyl levulinate(ML) production from biomass carbohydrates, including glucose,fructose and cellulose. The product distributions with different catalysts revealed that the Lewis acid was responsible for the isomerization of methyl glucoside(MG), producing a significant amount of the subsequent product 5-methoxymethylfurfural(MMF), while the Br?nsted acid facilitated the production of ML from MMF. Al_2(SO_4)_3 was efficient for monosaccharide conversion but not for cellulose. Using ball-milled cellulose with Al_2(SO_4)_3 resulted in a desired ML yield within a reasonable reaction time. The significant catalysis performances of two types of acids will guide the design of efficient catalytic processes for the selective conversion of biomass into levulinate esters.Xueli Chen Yuxuan Zhang Tao Hou Lujia Han Weihua Xiao 2018Journal of Energy Chemistry2018,27,2:3
5Synthesis and Anti-HIV Activity of a Series of 6-Modified 2',3'-Dideoxyguanosine and 2',3'-Didehydro-2',3'- dideoxyguanosine Analogs显示文摘寻找潜在的 2,3-dideoxyguanosine (ddG ) 和 2,3-didehydro-2,3-dideoxyguanosine (D4G ) prodrugs,一系列 6-modified ddG, D4G 类似物在基于房间的试金为他们的 anti-HIV 活动和 cytotoxities 被综合并且评估。所有类似物显示出低 cytotoxicities,他们中的一些显示了良性的 anti-HIV 活动。在 vivo, ddGTP 和 D4TTP 的活跃 triphosphate 形式,被一个新奇、灵巧的“一个壶”也综合方法。由 Taq, Therminater DNA 聚合酶和在 DNA/RNA 海滨合并的 HIV 反向的 transcriptase (RT ) 的 ddGTP 和 D4TTP 的识别被一个非放射性方法调查, Km 是坚定的。Lujia Xie Xiantao Yang Delin Pan Yingli Cao Mou Cao Guichun Lin Zhu Guan Ying Guo Lihe Zhang Zhenjun Yang 2013Chinese Journal of Chemistry2013,31,9:2
6Comparison and rapid prediction of lignocellulose and organic elements of a wide variety of rice straw based on near infrared spectroscopy显示文摘Rice straw is a major kind of biomass that can be utilized as lignocellulosic materials and renewable energy.Rapid prediction of the lignocellulose(cellulose,hemicellulose,and lignin)and organic elements(carbon,hydrogen,nitrogen,and sulfur)of rice straw would help to decipher its growth mechanisms and thereby improve its sustainable usages.In this study,364 rice straw samples featuring different rice subspecies(japonica and indica),growing seasons(early-,middle-,and late-season),and growing environments(irrigated and rainfed)were collected,the differences among which were examined by multivariate analysis of variance.Statistic results showed that the cellulose content exhibited significant differences among different growing seasons at a significant level(p<0.01),and the contents of cellulose and nitrogen had significant differences between different growing environments(p<0.01).Near infrared reflectance spectroscopy(NIRS)models for predicting the lignocellulosic and organic elements were developed based on two algorithms including partial least squares(PLS)and competitive adaptive reweighted sampling-partial least squares(CARS-PLS).Modeling results showed that most CARS-PLS models are of higher accuracy than the PLS models,possibly because the CARS-PLS models selected optimal combinations of wavenumbers,which might have enhanced the signal of chemical bonds and thereby improved the predictive efficiency.As a major contributor to the applications of rice straw,the nitrogen content was predicted precisely by the CARS-PLS model.Generally,the CARS-PLS models efficiently quantified the lignocellulose and organic elements of a wide variety of rice straw.The acceptable accuracy of the models allowed their practical applications.Abdoulaye Aguibou Diallo Zengling Yang Guanghui Shen Jinyi Ge Zichao Li Lujia Han 2019International Journal of Agricultural and Biological Engineering2019,12,2:2
7Discriminant analysis of terrestrial animal fat and oil adulteration in fish oil by infrared spectroscopy显示文摘In order to improve the effective utilization of animal fats and oils,and then ensure the feeding quality and safety in the field of animal husbandry engineering,the discriminant analysis of different species of terrestrial animal fats and oils in fish oil based on Fourier transform infrared spectroscopy was explored in this study.Twenty-seven different species of animal fat and oil materials including fish oil,lard,chicken oil,tallow and suet were studied.The experimental calibration and validation samples were prepared by adulterating different proportions of terrestrial fat and oil in fish oil.Results show that,it is easy to discriminate different species of raw material of fish oil,lard,chicken oil and ruminant fats based on the infrared spectral characteristics,while the distinction of tallow from suet samples is difficult.For the adulterated samples with percentage range of 1%-60%(w/w),ideal results were obtained to discriminate the terrestrial fat and oil ingredients(lard,chicken oil,tallow and suet)in fish oil,the correct discriminant rates for the independent validation set were all higher than 95%.It was proved by further study that the detection limits for the discriminant analysis of lard,chicken oil,tallow and suet in fish oil were 0.8%,0.6%,2%and 3%,respectively.Xu Lingzhi Gao Fei Yang Zengling Han Lujia Liu Xian 2016International Journal of Agricultural and Biological Engineering2016,9,3:2
8Stabilizing the MAPbI3 perovksite via the in-situ formed lead sulfide layer for efficient and robust solar cells显示文摘Surface passivation via post-treatment with organic reagents is a popular strategy to improve the stability and efficiency of perovskite solar cell. However, organic passivation still suffers from the weak bonding between organic chemicals and perovskite layers. Here we reported a facile inorganic layer passivating method containing strong Pb–S bonding by using ammonium sulfide treatment. A compact PbS_x layer was in-situ formed on the top surface of the perovskite film, which could passivate and protect the perovskite surface to enhance the performance and stability. Our novel inorganic passivation layer strategy demonstrates great potential for the development of high efficiency hybrid and robust perovskite optoelectronics.Lujia Xie Taiyang Zhang Yixin Zhao 2020Journal of Energy Chemistry2020,29,8:2
9Efficient microwave-assisted production of biofuel ethyl levulinate from corn stover in ethanol medium显示文摘Levulinate esters are versatile chemicals that have been used in various fields. Herein, the production of ethyl levulinate(EL) from corn stover was investigated under microwave irradiation. Several reaction parameters, including acid concentration, reaction temperature, reaction time, and liquid-to-solid mass ratio, were investigated to evaluate the reaction conditions. Response surface methodology(RSM) was employed to optimize the reaction conditions for the production of EL. A quadratic polynomial model was fitted to the data with an R2 value of 0.93. The model validation results reflected a good fit between the experimental and predicted values. A high conversion yield(58.1 mol%) was obtained at the optimum conditions of 190 °C, 30.4 min, 2.84 wt% acid, and 15 g/g liquid-to-solid mass ratio. Compared with conventional heating, microwave irradiation facilitated the conversion of corn stover to EL by dramatically shortening the reaction time from several hours to ~30 min. Thus, microwave-assisted conversion of corn stover to EL is an efficient way of utilizing a renewable biomass resource.Yuxuan Zhang Xue Wang Tao Hou Huan Liu Lujia Han Weihua Xiao 2018Journal of Energy Chemistry2018,27,3:1
10Toripalimab in advanced biliary tract cancer显示文摘Gemcitabine combined with platinum/fluorouracil drugs is the standard firstline treatment for advanced biliary tract cancers(BTCs).We explored the safety and efficacy of toripalimab plus gemcitabine and S-1(GS)as the first-line treatment for advanced BTCs.At a one-sided significance level of 0.025,a total of 50 patients could provide 80%power to show the efficacy at targeted progression-free survival(PFS)rate at 6 months of 70%versus 40%for the combined treatment.This single-arm,phase II study enrolled 50 patients with advanced BTCs who previously received no systemic treatment.The regimen was as follows:toripalimab(240 mg,i.v.,d1),gemcitabine(1,000 mg/m2,i.v.,d1 and d8),and S-1(40–60 mg bid p.o.,d1–14,Q21d).The primary endpoint was progression-free survival.The secondary endpoints included overall survival(OS),objective response rate(ORR),duration of response(DOR),and safety.The associations between response with PDL1 expression,tumor mutational burden(TMB),and genetic variations were explored.Patients were enrolled from January 2019 to August 2020,with a median follow-up time of 24.0 months(IQR:4.3–31.0 months).Wei Li Yueqi Wang Yiyi Yu Qian Li Yan Wang Chenlu Zhang Xiaojing Xu Xi Guo Yu Dong Yuehong Cui Qing Hao Lujia Huang Houbao Liu Tianshu Liu 2022The Innovation2022,3,4:1
11Renewable energy from agro-residues in China: solid biofuels and biomass briquetting technology显示文摘Chen Longjian Xing Li Han Lujia 2009Renewable and Sustainable Energy Reviews2009,13,12:1
12Conditioning including antithymocyte globulin followed by unmanipulated HLA-mismatched/haploidentical blood and marrow transplantation can achieve comparable outcomes with HLA-identical sibling transplantation显示文摘Lu Daopei Dong Lujia Wu Tong 2006Blood2006,107,8:1
13The development of agro-residue densified fuel in China based on energetics analysis 显示文摘Chen Longjian Xing Li Han Lujia 2010Waste Management2010,30,5:1
14in vitro Antioxidant activity of protein hydrolysates prepared from corn gluten meal显示文摘LI Xiuxia HAN Lujia CHEN Longjian 2008Journal of the Science of Food and Agriculture2008,88,9:1
15Renewable energy from agro-residues in China: Solid biofuels and biomass briquet- ting technology 显示文摘Longjian Chen Li Xing Lujia Han 2009Renewable and Sustainable Energy Re-views2009,13,:1
16Production, purification and properties of γ- glutamyltranspeptidase from a newly isolated Bacillus subtilis NX-2 显示文摘Qun Wu Hong Xu Lujia Zhang 2006Journal of Molecular Catalysis2006,21,6:1
17In vitro antioxidant activity of protein hydrolysates prepared from com glutenmeal显示文摘LI Xiuxia HAN Lujia CHEN Longjian 2008Journal of the Science Food and Agriculture2008,88,9:1
18Isolation and purification of flavonoid glucosides from Radix Astragali by high-speed counter-current chromatography显示文摘XIAO Weihua HAN Lujia SHI Bo 2009Journal of Chromatography B2009,877,89:1
19Increasing Momentum-Like Factors:A Method for Reducing Training Errors on Multiple GPUs显示文摘In distributed training,increasing batch size can improve parallelism,but it can also bring many difficulties to the training process and cause training errors.In this work,we investigate the occurrence of training errors in theory and train ResNet-50 on CIFAR-10 by using Stochastic Gradient Descent(SGD) and Adaptive moment estimation(Adam) while keeping the total batch size in the parameter server constant and lowering the batch size on each Graphics Processing Unit(GPU).A new method that considers momentum to eliminate training errors in distributed training is proposed.We define a Momentum-like Factor(MF) to represent the influence of former gradients on parameter updates in each iteration.Then,we modify the MF values and conduct experiments to explore how different MF values influence the training performance based on SGD,Adam,and Nesterov accelerated gradient.Experimental results reveal that increasing MFs is a reliable method for reducing training errors in distributed training.The analysis of convergent conditions in distributed training with consideration of a large batch size and multiple GPUs is presented in this paper.Yu Tang Zhigang Kan Lujia Yin Zhiquan Lai Zhaoning Zhang Linbo Qiao Dongsheng Li 2022Tsinghua Science and Technology2022,27,1:1
20Renewable energy from agro-residues in China: Solid biofuels and biomass briquet- ting technology 显示文摘Longjian Chen Li Xing Lujia Han 2009Renewable and Sustainable Energy Re- views2009,13,:1
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