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40篇 您的检索式:作者名="Dexiang LI"
    题名 作者 年代 出处 被引量
1Effect of inorganic carbon on anaerobic ammonium oxidation enriched in sequencing batch reactor显示文摘The present lab-scale research reveals the enrichment of anaerobic ammonium oxidation microorganism from methanogenic anaerobic granular sludge and the effect of inorganic carbon(sodium bicarbonate)on anaerobic ammonium oxidation.The enrichment of anammox bacteria was carried out in a 7.0-L sequencing batch reactor(SBR)and the effect of bicarbonate on anammox was conducted in a 3.0-L SBR.Research results,especially the biomass,showed first signs of anammox activity after 54 d cultivation with synthetic w...LIAO, Dexiang LI, Xiaoming YANG, Qi ZENG, Guangming GUO, Liang YUE, Xiu 2008Journal of Environmental Sciences2008,20,8:28
2Temperature and substrate availability regulate soil respiration in the tropical mountain rainforests,Hainan Island,China显示文摘Aims Tropical forest plays a key role in global C cycle;however,there are few studies on the C budget in the tropical rainforests in Asia.This study aims to(i)reveal the seasonal patterns of total soil respiration(R_(T)),litter respiration(R_(L))and soil respiration without surface organic litter(R_(NL))in the primary and secondary Asian tropical mountain rainforests and(ii)quantify the effects of soil temperature,soil moisture and substrate availability on soil respiration.Methods The seasonal dynamics of soil CO_(2) efflux was measured by an automatic chamber system(Li-8100),within the primary and secondary tropical mountain rainforests located at the Jianfengling National Reserve in Hainan Island,China.The litter removal treatment was used to assess the contribution of litter to belowground CO_(2) production.Important Findings The annual R_(T) was higher in the primary forest(16.73±0.87 Mg C ha−1)than in the secondary forest(15.10±0.26 Mg C ha−1).The rates of R_(T),R_(NL) and R_(L) were all significantly higher in the hot and wet season(May–October)than those in the cool and dry season(November–April).Soil temperature at 5cm depth could explain 55–61%of the seasonal variation in R_(T),and the temperature sensitivity index(Q_(10))ranked by R_(L)(Q_(10)=3.39)>R_(T)(2.17)>R_(NL)(1.76)in the primary forest and by R_(L)(4.31)>R_(T)(1.86)>R_(NL)(1.58)in the secondary forest.The contribution of R_(L) to R_(T) was 22–23%,while litter input and R_(T) had 1 month time lag.In addition,the seasonal variation of R_(T) was mainly determined by soil temperature and substrate availability.Our findings suggested that global warming and increased substrate availability are likely to cause considerable losses of soil C in the tropical forests.Zhang Zhou Lai Jiang Enzai Du Huifeng Hu Yide Li Dexiang Chen Jingyun Fang 2013Journal of Plant Ecology2013,6,5:8
3Total phenolic, flavonoid content, and antioxidant activity of flour, noodles, and steamed bread made from different colored wheat grains by three milling methods显示文摘The objective of this study was to evaluate the effects of wheat variety, food processing, and milling method on antioxidant properties. Black wheat variety Heibaoshi 1 had the highest total phenolic content(659.8 μg gallic acid equivalents g-1), total flavonoid content(319.3 μg rutin equivalents g-1), and antioxidant activity, whereas light purple wheat variety Shandongzimai 1 had the lowest total flavonoid content(236.2 μg rutin equivalents g-1) and antioxidant activity. Whole wheat flour and partially debranned grain flour had significantly higher total phenolic contents, total flavonoid contents, and antioxidant activity than refined flour(P < 0.05). Compared with flour, total phenolic contents, total flavonoid contents and antioxidant activity decreased in noodles and steamed bread, whereas noodles had slightly higher total phenolic and flavonoid content than steamed bread. Antioxidant activities(by ferric reducing ability of plasma assay) of steamed bread made from whole wheat flour, partially debranned grain flour, and refined flour were 23.5%, 21.1%, and 31.6% lower, respectively, than the corresponding values of flour. These results suggested that black whole wheat flour and partially debranned grain flour are beneficial to human health.Yaoguang Li Dongyun Ma Dexiang Sun Chenyang Wang Jian Zhang Yingxin Xie Tiancai Guo 2015The Crop Journal2015,3,4:7
4Feed conversion ratio,residual feed intake and cholecystokinin type A receptor gene polymorphisms are associated with feed intake and average daily gain in a Chinese local chicken population显示文摘Background: The feed conversion ratio(FCR) and residual feed intake(RFI) are common indexes in measuring feed efficiency for livestock. RFI is a feed intake adjusted for requirements for maintenance and production so these two traits are related. Similarly, FCR is related to feed intake and weight gain because it is their ratio. Cholecystokinin type A receptor(CCKAR) plays an important role in animal digestive process. We examined the interplay of these three parameters in a local Chinese chicken population.Results: The feed intake(FI) and body weights(BW) of 1,841 individuals were monitored on a daily basis from 56 to 105 d of age. There was a strong correlation between RFI and average daily feed intake(ADFI) and a negative correlation between the FCR and daily gain(r_g=-0.710). Furthermore, we identified 51 single nucleotide polymorphisms(SNPs) in the CCKAR and 4 of these resulted in amino acid mutations. The C334A mutation was specifically associated with FI and the expected feed intake(EFI)(P < 0.01) and significantly associated with the average daily gain(ADG)(P < 0.05). G1290A was significantly associated with FI and EFI(P < 0.05).Conclusion: FCR is apply to weight selecting, and RFI is more appropriate if the breeding focus is feed intake. And C334A and G1290A of the CCKAR gene can be deemed as candidate markers for feed intake and weight gain.Zhenhua Yi Xing Li Wen Luo Zhenqiang Xu Congliang Ji Yan Zhang Qinghua Nie Dexiang Zhang Xiquan Zhang 2018Journal of Animal Science and Biotechnology2018,9,4:7
5Parallelizing of macro-scale pseudo-particle modeling for particle-fluid systems显示文摘A parallel algorithm suitable for simulating multi-sized particle systems and multi- phase fluid systems is proposed based on macro-scale pseudo-particle modeling (MaPPM). The algorithm employs space-decomposition of the computational load among the processing ele- ments (PEs) and multi-level cell-subdivision technique for particle indexing. In this algorithm, a 2D gas-solid system is simulated with the temporal variations of drags on solids, inter-phase slip velocities and solids concentration elaborately monitored. Analysis of the results shows that the algorithm is of good parallel efficiency and scalability, demonstrating the unique advantage of MaPPM in simulating complex flows.TANG Dexiang GE Wei WANG Xiaowei MA Jingsen GUO Li LI Jinghai 2004Science China Chemistry2004,47,5:6
6Facile microwave-assisted ionic liquid synthesis of sphere-like BiOBr hollow and porous nanostructures with enhanced photocatalytic performance显示文摘In this work, two kinds of self-assembled hierarchical BiOBr microcrystals were rapidly synthesized through a simple microwave-assisted route in the presence of reactable ionic liquid 1-hexadecyl-3-methylimidazolium bromide([C_(16)mim]Br). These porous and hollow BiOBr microspheres were obtained via a facile solvothermal method with or without polyvinyl pyrrolidone(PVP), respectively. During the synthetic process, ionic liquid [C_(16)mim]Br played as solvent, reactant and template at the same time. Moreover, the BiOBr hollow and porous microspheres exhibited outstanding photocatalytic activities for the degradation of rhodamine B(RhB) under visible light irradiation. A possible photocatalytic mechanism was also discussed in detail. It can be assumed that the higher photocatalytic activities of BiOBr porous microspheres materials could be ascribed to the novel structure, larger specific surface area, narrower band gap structure and smaller particle size.Zhigang Chen Jie Zeng Jun Di Dexiang Zhao Mengxia Ji Jiexiang Xia Huaming Li 2017Green Energy & Environment2017,2,2:5
7Hyperbaric oxygen therapy for cerebral blood flow and electroencephalogram in patients with acute cerebral infarction Choice for therapeutic occasion显示文摘BACKGROUND: Hyperbaric oxygen (HBO) therapy increases blood oxygen content, changes cerebral blood flow (CBF) and cerebral metabolism. Its therapeutic effects on cerebrovascular disease have been fully confirmed, but the occasion for HBO therapy is still unclear. OBJECTIVE: To observe the therapeutic effects of HBO therapy at different time on CBF and electroencephalogram (EEG) in patients with acute cerebral infarction (CI). DESIGN: Randomized controlled trial. SETTING: Department of Neurology, Shidong Hospital, Yangpu District of Shanghai. PARTICIPANTS: Ninety-six inpatients with acute CI, admitted to Department of Neurology, Shidong Hospital, Yangpu District of Shanghai from January 2001 to December 2006, were involved in this experiment. The involved participants met the diagnosis criteria of acute CI and confirmed by skull CT or MRI. They all were patients with moderate CI (16–30 points) according to neurologic deficit score formulated by Chinese Medical Association. Informed consents of detected items and therapeutic regimen were obtained from all the involved participants. They were randomized into two groups with 48 in each: early-stage treatment group and advanced-stage treatment group. Among the 48 patients in the early-stage treatment group, 21 male and 27 female, aged 53–68 years, 22 patients were found with basal ganglia infarction, 10 with brain lobe infarction, 16 with multiple infarction, 27 accompanied with hypertension and 2 accompanied with diabetes mellitus. Among the 48 patients in the advanced-stage treatment group, 23 male and 25 female, aged 52–71 years, 25 patients were found with basal ganglia infarction, 10 with brain lobe infarction, 12 with multiple infarction, 1 with brain stem infarction, 28 accompanied with hypertension and 1 accompanied with diabetes mellitus. METHODS: After admission, patients of two groups received routine drug treatment. ① Patients in the early-stage treatment group and advanced-stage treatment group began to receive HBO therapy within one week of CI and 4 weeks after CI, respectively. The total course of treatment both was 2 weeks. EEG examination was carried out before and after therapy, and CBF was determined with 133Xe inhalation. ② Assessment criteria of curative effects: Basically cured: neurologic symptoms and body signs disappeared, could work and do housework; Markedly effective: score of neurologic deficit was decreased by over 21 points, could manage himself/herself partially; Effective: score of neurologic deficit was decreased by 8 to 12 points; Non-effective: Score was increased or decreased less than 8 points, neurologic deficit was worsened, even died. Total effective rate = (number of cured+number of markedly effective+number of effective)/ number of total cases×100%. ③ t test and Chi-square test were used for comparing the difference of measurement data and enumeration data respectively, and Ridit analysis was used for comparing the difference of clinical curative effects. MAIN OUTCOME MEASURES: ① Comparison of EEG and CBF of patients from two groups before and after treatment. ② Comparison of post-treatment neurologic deficit of patients between two groups. RESULTS: All the involved 96 patients with CI participated in the final analysis. ① Clinical symptoms of patients from two groups after therapy were significantly improved as compared with those before therapy, and curative effects of early treatment group were better than those of advanced treatment group (U =1.99, P < 0.05). ②After treatment, CBF in each region of brains, except for that in parietal lobe of patients in the advanced-stage treatment group, was significantly improved (P < 0.05–0.01); The improvement of CBF of patients in the early-stage treatment group was more obvious than that in the early-stage treatment group (P < 0.05–0.01). ③ The abnormal rate of EEF of patients from early-stage treatment group and advanced-stagetreatment group before treatment was 94% and 96%, respectively. After treatment, improvement rate of EEG of patients in the early-stage treatment group was 95%, which was significantly different from that in the advanced-stage treatment group (82%,χ2 =4.32,P < 0.05) CONCLUSION: HBO therapy both at early and advanced stages of CI (within 1 week and 4 weeks after CI attack) can improve CBF and EEG of patients with early CI, especially.Lei Chen Fei Li Dexiang Gu 2007Neural Regeneration Research2007,2,3:4
8Outcome of Patients with Colorectal Liver Metastasis: Analysis of 1,613 Consecutive Cases显示文摘Zhu Dexiang Ren Li Wei Ye Wu Haifu Zhong Yunshi Ye Qinghai Zhai Shenyong Xu Bo Liang Li Pan Xiangou Li Haohao Ye Lechi Liu Tianshu Fan Jia Qin Xinyu Xu Jianmin 2012Annals of Surgical Oncology2012,,9:3
9CO2 geological storage into a lateral aquifer of an offshore gas field in the South China Sea: storage safety and project design显示文摘DF1-1 煤气的领域,在西方的华南海定位了,这样包含公司2,的高集中关于需要有大担心减少许多选择在最近的年里被考虑了在这研究在海南岛上与天然气溪流分开的 CO 2处理的 CO 2排出物,在 DF1-1 煤气的地的侧面的盐的含水土层的公司2存储的可行性被估计,包括含水土层选择和地质的评价,公司2迁居和存储安全,工程设计,并且经济分析六近海含水土层为公司2被调查了地质的存储因为它封上能力证明, DF1-1 煤气的地的侧面的含水土层为公司2注射和存储作为最好的目标被选择了,并且联合含水土层和烃水库的大存储能力地质的结构分开的公司2将在海南岛上被使脱水并且为压力调整在 supercritical 或液体状态由一条长途的 subsea 管道搬运了到 DF1-1 煤气的地的中央站台公司2然后将被注射进经由通过一座水平井水库的一个 subsea 水源的侧面的含水土层,模拟建议没有扰乱 scoping 经济分析显示出的天然气生产,注射公司2将在含水土层向上慢慢地移居联合起来的存储工程花费了,这是近似有 subsea 管道的 US$26-31/ton 公司2作为主要贡献者到大写的开销( CAPEX ),和是的脱水系统操作开销( OPEX )的主要因素。Liang ZHANG Dexiang LI Justin EZEKIEL Weidong ZHANG Honggang MI Shaoran REN 2015Frontiers of Earth Science2015,9,2:2
10Synthesis and antitumor activities of a new series of 4,5-dihydro-1H-thiochromeno[4,3-d]pyrimidine derivatives显示文摘A new series of 4,5-dihydro-1H-thiochromeno[4,3-d]pyrimidine derivatives have been designed and synthesized.The antitumor activities of the target compounds have been evaluated in vitro against two human cancer cell lines including A549 (human alveolar adenocarcinoma cell) and H460 (human lung cancer) by MTT assay.Most of the target compounds exhibited significant antitumor activities against A549 and H460 cancer cell lines.The most potent compound 4-(benzo[d][1,3]dioxol5-yl)-8,9-difluoro-2-(4-methylpiperazin-1-yl)-4,5-dihydro-1H-thiochromeno[4,3-d]pyrimidine (CH05) (IC50=0.44 M,3.07 M) was 2.0 and 8.4 times more active than gefitinib (IC50=0.89 M,16.81 M) against A549 and H460 cell lines,respectively.GUO DeXiang LIU YaJing LI Ting WANG Nan ZHAI Xin HU Chun GONG Ping 2012Science China Chemistry2012,55,3:2
11Enhanced Recovery After Surgery (ERAS) Program Attenuates Stress and Accelerates Recovery in Patients After Radical Resection for Colorectal Cancer: A Prospective Randomized Controlled Trial显示文摘Li Ren Dexiang Zhu Ye Wei Xiangou Pan Li Liang Jianmin Xu Yunshi Zhong Zhanggang Xue Ling Jin Shaokang Zhan Weixin Niu Xinyu Qin Zhaohan Wu Zhaoguang Wu 2012World Journal of Surgery2012,,2:1
12Removal of lead(II)from aqueous solutions using carbonate hydroxyapatite extracted fromeggshell waste显示文摘LIAO Dexiang ZHENG Wei LI Xiaoming 2010Journal of Hazardous Materials2010,177,:1
13Heat Effects of Amorphous FeCuNbSiB Alloy Ablated with Femtosecond Laser显示文摘Jia Wei Zhang Dexiang Li Xun 2008Thin Solid Films2008,516,8:1
14Responses of soil CH_(4) fluxes to nitrogen addition in two tropical montane rainforests in southern China显示文摘Background:Atmospheric nitrogen(N)deposition is projected to increase in the next few decades,which may have a marked impact on soil-atmosphere CH_(4) fluxes.However,the impacts of increased atmospheric N depositions on soil CH_(4) flux in tropical rainforests are still poorly understood.From January 2015 to December 2018,a field experiment was conducted in a primary tropical montane rainforest(PTMR)and a secondary tropical montane rainforest(STMR)in southern China to quantify the impact of N additions at four levels(N0:0 kg N⋅ha^(-1)⋅year^(-1);N25:25 kg N⋅ha^(-1)⋅year^(-1);N50:50 kg N⋅ha^(-1)⋅year^(-1);N100:100 kg N⋅ha^(-1)⋅year^(-1)on soil CH_(4) flux.Results:Four years of measurements showed clear seasonal variations in CH_(4) flux in all treatment plots for both forest types(PTMR and STMR),with lower rates of soil CH_(4) uptake during the wet season and higher rates of soil CH_(4) uptake during the dry season.Soil CH_(4) uptake rates were significantly and negatively correlated with both soil temperature and soil moisture for both forest types.Annual CH_(4) uptake for the N0 plots from the PTMR and STMR soils were2.20 and1.98 kg N⋅ha^(-1)⋅year^(-1),respectively.At the PTMR site,mean CH_(4) uptake compared with the N0 treatment was reduced by 19%,29%,and 36%for the N25,N50,and N100 treatments,respectively.At the STMR site,mean CH_(4) uptake compared with the N0 treatment was reduced by 15%,18%,and 38%for the N25,N50,and N100 treatments,respectively.High level N addition had a stronger inhibitory impact on soil CH_(4) uptake than did the low level N addition.Conclusion:Our data suggest that soil CH_(4) uptake in tropical rainforests is sensitive to N deposition.If atmospheric N deposition continues to increase in the future,the soil CH_(4) sink strength of tropical rainforests may weaken further.Fangtao Wu Changhui Peng Chuanyao Wang Huai Chen Weiguo Liu Zhihao Liu Hui Wang Hong Li Dexiang Chen Yide Li Shirong Liu 2022Forest Ecosystems2022,9,3:1
15Predicting metachronous liver metastasis from colorectal cancer using serum proteomic fingerprinting显示文摘Dexiang Zhu Yunshi Zhong Haifu Wu Lechi Ye Jie Wang Yan Li Ye Wei Li Ren Bin Xu Jianmin Xu Xinyu Qin 2013Journal of Surgical Research2013,,:1
16Serum proteomic profiling for the early diagnosis of colorectal cancer显示文摘Dexiang Zhu Jie Wang Li Ren Yan Li Bin Xu Ye Wei Yunshi Zhong Xinzhe Yu Shenyong Zhai Jianmin Xu Xinyu Qin 2012J Cell Biochem2012,,2:1
17Removal of lead(Ⅱ)from aqueous solutions using carbonate hydroxyapatiteextracted from eggshell waste显示文摘LIAO Dexiang ZHENG Wei LI Xiaoming 2010J Hazard Mater2010,177,1:1
18Outcome of patients with colorectal liver metastasis:analysis of 1613 consecutive cases显示文摘Dexiang Z Li R Ye W 0,,09:1
19Outcome of patients with colorectal liver metastasis:analysis of 1,613 consecutive cases显示文摘Dexiang Z Li R Ye W 0,,09:1
20Outcome of patients with colorectal liver metastasis:analysis of 1,613 consecutive cases显示文摘Dexiang Z Li R Ye W 2012Ann Surg Oncol2012,19,9:1
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