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Effects of Traditional Chinese Herbal Medicine on Immune Organ Indexes and Macrophages Phagocytic Indexes in Chickens Infected by Infectious Bronchitis Virus 被引量:1
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作者 LI Qing-yan CHENG Jing-jing +1 位作者 ZHANG Tie LU Gai-ru 《Animal Husbandry and Feed Science》 CAS 2010年第3期43-44,48,共3页
[ Objective] To study the therapeutic effects of traditional Chinese medicine prescriptions on infectious bronchitis (IB) and find a novel avenue for prevention and treatment of viral diseases in poultry. [Method] A... [ Objective] To study the therapeutic effects of traditional Chinese medicine prescriptions on infectious bronchitis (IB) and find a novel avenue for prevention and treatment of viral diseases in poultry. [Method] A total of 160 cockerels at the age of 15 d were divided into four groups randomly, including traditional Chinese medicine group, moroxydine control group, challenge control group and healthy control group. Except the healthy control group, other groups were challenged with infectious bronchitis virus (IBV) on Day 15. After 48 h post challenge, the traditional Chinese medicine groupand moroxydine control group were respectively administrated with Chinese herbal medicine prescription and moroxydine, continuously for 5 d. The immune organ indexes and macrephage phagocytic indexes were detected on Day 18, 24 and 30, respectively. [ Result] The immune organ indexes and macrophage phagocytic indexes were not significantly different between traditional Chinese medicine group and moroxydine control group on Day 18. But all the indexes of the traditional Chinese medicine groups were increased significantly ( P 〈 0.05) on Day 24 and 30, and showed extremely significant difference ( P 〈 0.01 ) with those of challenge control group on Day 30. [ Conclusion] The traditional Chinese herbal medicine can enhance macrophage phagocytic indexes and immune organs indexes of chickens infected by IBV. 展开更多
关键词 Traditional Chinese medicine prescription Infectious bronchitis virus Immune organ indexes Macrophages phagocytic indexes
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Effects of Dihydromyricetin Extracted from Ampelopsis grossedentata on Visceral Organ Indexes and Intestinal Digestive Enzyme Activities of Chickens 被引量:1
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作者 Dai Qing Yu Jianping +3 位作者 Yu Lina Han Ningning Xu Yuan Zhao Hui 《Animal Husbandry and Feed Science》 CAS 2016年第3期159-161,164,共4页
To provide a reference basis for reasonable development and utilization of Ampelopsis grossedentata resource and its application in production,we added 0.025%,0.05% and 0.1% dihydromyricetin(DMY)extracted from A.gro... To provide a reference basis for reasonable development and utilization of Ampelopsis grossedentata resource and its application in production,we added 0.025%,0.05% and 0.1% dihydromyricetin(DMY)extracted from A.grossedentata into the basal diets of Yaoshan chickens,and studied the effects of DMY on visceral organ indexes and digestive enzyme activities of 40-day-old healthy Yaoshan chickens.Supplementation of DMY in basal diets influenced visceral organ weight,organ index,length and digestive enzyme activity of small intestine of chickens.Among them,0.05% DMY was the most appropriate volume for supplementation.Compared with control group(without DMY),0.05% DMY reduced lung weight and index(P〉0.05),significantly reduced liver weight(P〈0.05),extremely reduced stomach weight and stomach index(P〈0.01),increased activity of amylase in small intestine(P〉0.05),significantly increased length of small intestine and activity of protease(P〈0.05).Supplementation of 0.05% DMY reduced the visceral organ weight and organ index,enhanced digestion and absorption ability of gastrointestinal tract,thereby improving feed utilization rate and promoting the growth of chickens. 展开更多
关键词 Dihydromyricetin Ampelopsis grossedentata Yaoshan chicken organ index Digestive enzyme activity
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Effects of Crude Fiber Levels on Production Performance, Organ Index and Serum Biochemical Parameters of Dingan Geese Aged from 1 to 28 Days 被引量:1
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作者 Liu Quanwei Wei Limin +5 位作者 Wang Feng Lin Dajie Xing Manping Yang Shaoxiong Sun Ruiping Ye Baoguo 《Animal Husbandry and Feed Science》 CAS 2019年第3期98-102,共5页
[Objective]The paper was to investigate the effects of dietary crude fiber level on production performance,organ index and serum biochemical parameters of Dingan geese aged from 1 to 28 days.[Method]A total of 144 1-d... [Objective]The paper was to investigate the effects of dietary crude fiber level on production performance,organ index and serum biochemical parameters of Dingan geese aged from 1 to 28 days.[Method]A total of 144 1-day-old Dingan geese with the same genetic background and similar initial weight(88.75±0.21g)were randomly assigned into 3 groups with 4 replicates per group and 12 geese per replicate,and fed with the diets containing 2.56%,3.52% and 4.48% crude fiber,respectively.The trial lasted 28 d.[Result]1)The final weight and daily gain of 3.52% CF group were significantly higher than those of 2.56% CF group(P<0.05);the feed/gain ratio was markedly lower than that of 2.56% CF group(P<0.05).2)The slaughter rate,semi-eviscerated rate and leg muscle rate of 3.52% CF group were higher than those of 2.56% and 4.48% CF groups(P>0.05).3)As the dietary crude fiber levels rose,the abdominal fat rate showed a downward trend(P>0.05).4)The liver index of 3.52% CF group was significantly higher than that of 2.56% CF group(P<0.05).4)Compared with 2.5%and 4.48% CF groups,the serum albumin concentrations of 3.52% CF group markedly increased(P<0.05),the serum total protein and globin contents were higher(P>0.05),but the serum uric acid level was lower(P>0.05).[Conclusion]When the crude fiber level was 3.52%,the production performances of Dingan geese aged from 1 to 28 days were better,and the liver index and serum albumin level could be obviously improved. 展开更多
关键词 CRUDE fiber Dingan GEESE Production performance organ index SERUM BIOCHEMICAL index
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Very-High Color Rendering Index Hybrid White Organic Light-Emitting Diodes with Double Emitting Nanolayers 被引量:4
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作者 Baiquan Liu Miao Xu +6 位作者 Lei Wang Hong Tao Yueju Su Dongyu Gao Linfeng Lan Jianhua Zou Junbiao Peng 《Nano-Micro Letters》 SCIE EI CAS 2014年第4期335-339,共5页
A very-high color rendering index white organic light-emitting diode(WOLED) based on a simple structure was successfully fabricated. The optimized device exhibits a maximum total efficiency of 13.1 and 5.4 lm/W at 1,0... A very-high color rendering index white organic light-emitting diode(WOLED) based on a simple structure was successfully fabricated. The optimized device exhibits a maximum total efficiency of 13.1 and 5.4 lm/W at 1,000 cd/m2. A peak color rendering index of 90 and a relatively stable color during a wide range of luminance were obtained. In addition, it was demonstrated that the 4,40,400-tri(9-carbazoyl) triphenylamine host influenced strongly the performance of this WOLED.These results may be beneficial to the design of both material and device architecture for high-performance WOLED. 展开更多
关键词 White light HYBRID Color rendering index organic light-emitting diodes Double emitting nanolayers
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Utilization of Wood Biomass for Organic Soil Based on the Soil Fertility Index (SOFIX) 被引量:1
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作者 Pitchayapa Pholkaw Ayaka Muraji +5 位作者 Kazuyoshi Maeda Taiki Kawagoe Kenzo Kubota Sirilak Sanpa Quoc Thinh Tran Motoki Kubo 《Journal of Agricultural Chemistry and Environment》 2019年第4期224-236,共13页
Possibility of wood biomass for preparing organic soil was examined to construct reproducible and stable organic standard soil. Seven organic soils were constructed from base soils and additive materials based on the ... Possibility of wood biomass for preparing organic soil was examined to construct reproducible and stable organic standard soil. Seven organic soils were constructed from base soils and additive materials based on the recommended values of the soil fertility index (SOFIX) (total carbon ≥ 25,000 mg/kg, total nitrogen ≥ 1500 mg/kg, total phosphorus ≥ 1100, and total potassium of 2500 to 10,000 mg/kg). Base soils were prepared from two types of wood biomass (big- and small-sized wood chips) at 50%, 60%, and 70% (v/v) and other organic materials such as peat moss, black soil, and mountain soil. Additive materials (soybean meal, oil cake, cow manure, and bone meal) were amended into all organic soils at the same amount. Incubation experiment showed that bacterial biomass in all organic soil was greater than 6 × 108 cells/g-soil after addition of 30% of water content for 1 week. In addition, polymerase chain reaction denaturing gradient gel electrophoresis (PCR-DGGE) analysis resulted in a stable bacterial diversity of the organic soil prepared from the small size wood chip at 70%. Chemical properties of all organic soils were within the recommended values of SOFIX. The plant cultivation experiment showed that fresh Brassica rapa var. peruviridis weights in the organic soils with 50%, 60%, and 70% of small-sized wood chip were 5%, 16%, and 27% higher than that of the chemical fertilizer-amended soil. The organic soil with 70% of small wood chip was the best in the seven organic soils in this study. 展开更多
关键词 WOOD BIOMASS organIC SOIL SOIL FERTILITY index (SOFIX)
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High color rendering index white organic light-emitting diode using levofloxacin as blue emitter 被引量:1
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作者 苗艳勤 高志翔 +5 位作者 张爱琴 李源浩 王华 贾虎生 刘旭光 Tsuboi Taiju 《Chinese Physics B》 SCIE EI CAS CSCD 2015年第5期577-582,共6页
Levofloxacin (LOFX), which is well-known as an antibiotic medicament, was shown to be useful as a 452-nm blue emitter for white organic light-emitting diodes (OLEDs). In this paper, the fabricated white OLED conta... Levofloxacin (LOFX), which is well-known as an antibiotic medicament, was shown to be useful as a 452-nm blue emitter for white organic light-emitting diodes (OLEDs). In this paper, the fabricated white OLED contains a 452-nm blue emitting layer (thickness of 30 nm) with 1 wt% LOFX doped in CBP (4,4'-bis(carbazol-9-yl)biphenyl) host and a 584-nm orange emitting layer (thickness of 10 nm) with 0.8 wt% DCJTB (4-(dicyanomethylene)-2-tert-butyl-6-(1,1,7,7- tetramethyljulolidin-4-yl-vinyl)-4H-pyran) doped in CBE which are separated by a 20-nm-thick buffer layer of TPBi (2,2',2"-(benzene-1,3,5-triyl)-tri(1-phenyl-lH-benzimidazole). A high color rendering index (CRI) of 84.5 and CIE chromaticity coordinates of (0.33, 0.32), which is close to ideal white emission CIE (0.333, 0.333), are obtained at a bias voltage of 14 V. Taking into account that LOFX is less expensive and the synthesis and purification technologies of LOFX are mature, these results indicate that blue fluorescence emitting LOFX is useful for applications to white OLEDs although the maximum current efficiency and luminance are not high. The present paper is expected to become a milestone to using medical drug materials for OLEDs. 展开更多
关键词 LEVOFLOXACIN blue organic light emitting diodes white organic light-emitting diodes high color rendering index
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High efficient and high color rendering index white organic light-emitting diodes
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作者 张民艳 尚玉柱 +3 位作者 徐红 吕燕芳 于建宁 魏斌 《Journal of Shanghai University(English Edition)》 CAS 2011年第4期252-255,共4页
We have fabricated high-efficient white organic light-emitting diodes (WOLEDs) using two types of electron transport materials with different electron mobility. The effect of the electron mobility on the device perf... We have fabricated high-efficient white organic light-emitting diodes (WOLEDs) using two types of electron transport materials with different electron mobility. The effect of the electron mobility on the device performance is discussed. In addition, to generate the desired white emission and high color rendering index, we perform the structure design of OLED, in which the functions of co-host of blue and green dopants on chromatic-stability are investigated. Experimental results find that the maximum color rendering index reaches as high as 91 at the voltage of 8 V. 展开更多
关键词 white organic light emitting diodes (WOLEDs) charge balance energy transfer color rendering index
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Effects of Dangguibuxue Decoction on Immune Organs and Erythrocyte Immune in Broilers
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作者 XIA Chun-li YIN Zhong-qiong +4 位作者 LIU Yu FAN Jing LI Yan-hua XU Ming-xiang SHEN Yi-jun 《Animal Husbandry and Feed Science》 CAS 2011年第2期21-24,共4页
[ Objective] To study the effects of Dangguibuxue decoction on immune organ and erythrocyte immune in broilers. [ Method] One hun- dred 1 -day-old healthy Sanhuang chickens were randomly divided into five groups, 20 i... [ Objective] To study the effects of Dangguibuxue decoction on immune organ and erythrocyte immune in broilers. [ Method] One hun- dred 1 -day-old healthy Sanhuang chickens were randomly divided into five groups, 20 in each group. They were immunized with Newcastle disease vaccine via intranasal inoculation at 7 days old. The chickens in group I, II and III drank water added the Danggguibuxue decoction at proportion of 2%, 5% and 10% ( V/V), respectively. The chickens in the group IV drank water added Astragalus polysaccharide at proportion of 2% (V/V). And those in the group V drank water without addition of any drug. Blood was collected via jugular vein at 14, 21 and 28 days old, respectively, and then they were dissected. The immune organ indexes, erythrocyte C3b receptor rosette rate (E-C3b RR) and erythrocyte immune complex rosette rate (E-ICRR) were measured. [ Result] The Dangguibuxue decoction had no significant effect on thymus index but significantly increased spleen index and bursa of Fabricius index. The best peripheral and humoral immunity was observed in the broilers drinking water added the Dangguibuxue decoction at proportion of 10% ( V/ V), and its immune enhancement was better than that of Astragalus polysaccharide added at proportion of 2% (V/V). [ Coaclusion] Dangguibuxue decoction can promote maturation of immune organs and enhance erythrocyte immune functions; thus, it can be used as immunolootentiator. 展开更多
关键词 Dangguibuxue decoction BROILERS Immune organ indexes Erythrocyte immune
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Fertilization Affects Biomass Production of Suaeda salsa and Soil Organic Carbon Pool in East Coastal Region of China 被引量:5
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作者 MENG Qing-feng YANG Jing-song +2 位作者 YAO Rong-jiang LIU Guang-ming YU Shi-peng 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2013年第9期1659-1672,共14页
Land use practice significantly affects soil properties. Soil is a major sink for atmospheric carbon, and soil organic carbon (SOC) is considered as an essential indicator of soil quality. The objective of this stud... Land use practice significantly affects soil properties. Soil is a major sink for atmospheric carbon, and soil organic carbon (SOC) is considered as an essential indicator of soil quality. The objective of this study was to assess the effects of N and P applied to Suaeda salsa on biomass production, SOC concentration, labile organic carbon (LOC) concentration, SOC pool and carbon management index (CMI) as well as the effect of the land use practice on soil quality of coastal tidal lands in east coastal region of China. The study provided relevant references for coastal exploitation, tidal land management and related study in other countries and regions. The field experiment was laid out in a randomized complete block design, consisting of four N-fertilization rates (0 (NO), 60 (N1), 120 (N2) and 180 kg ha-1 (N3)), three P-fertilization rates (0 (P0), 70 (P1) and 105 kg ha-~ (P2)) and bare land without vegetation. N and P applied to S. salsa on coastal tidal lands significantly affected biomass production (above-ground biomass and roots), bulk density (Pb), available N and P, SOC, LOC, SOC pool and CMI. Using statistical analysis, significantly interactions in N and P were observed for biomass production and the dominant factor for S. salsa production was N in continuous 2-yr experiments. There were no significant interactions between N and P for SOC concentration, LOC concentration and SOC pool. However, significant interaction was obtained for CMI at the 0-20 cm depth and N played a dominant role in the variation of CMI. There were significant improvements for soil measured attributes and parameters, which suggested that increasing the rates of N and P significantly decreased Pb at the 0-20 cm depth and increased available N and P, SOC, LOC, SOC pool as well as CMI at both the 0-20 and 20-40 cm depth, respectively. By correlation analysis, there were significantly positive correlations between biomass (above- ground biomass and roots) and SOC as well as LOC in 2010 and 2011 across all soil depth, respectively. The treatment with N at 180 kg ha-~ and P at 105 kg ha-1 was superior to the other treatments. The results from the 2-yr continuous experiments indicated that, in short-term, there were a few accumulation of SOC and LOC concentrations by means of N and P application to S. salsa, whereas in the long run, S. salsa with N and P application was recommended for coastal tidal lands because of its great potential of carbon sequestration, improvements of soil nutrition status and promotion of soil quality. 展开更多
关键词 Suaeda salsa production coastal tidal lands N and P application soil organic carbon labile organic carbon carbon management index
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Geochemistry, Paleoenvironment and Mechanism of Organic-Matter Enrichment in the Lower Silurian Longmaxi Formation Shale in the Sichuan Basin, China 被引量:9
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作者 CHEN Zhipeng CUI Junping +4 位作者 REN Zhanli JIANG Shu LIANG Xing WANG Gaocheng ZOU Chen 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2019年第3期505-519,共15页
To investigate the mechanism of the organic-matter enrichment in the Lower Longmaxi Formation shale,the geochemistry and total organic carbon(TOC)of the Longmaxi Formation black shales in the Jiaoshiba,Zhaotong,and We... To investigate the mechanism of the organic-matter enrichment in the Lower Longmaxi Formation shale,the geochemistry and total organic carbon(TOC)of the Longmaxi Formation black shales in the Jiaoshiba,Zhaotong,and Weiyuan areas of the Sichuan Basin were analyzed.Paleoproductivity proxy parameters(Babio,Siex,and Ni/Al),clastic influx proxies(TiO2 and Ti/Al),redox indices(V/Cr,Ni/Co,V/(V+Ni),and U/Th),and hydrothermal indicators(Fe,Mn,and Y concentrations;Fe/Ti ratio and a Ni-Zn-Co diagram)were employed to decipher the paleoenvironment of the Lower Longmaxi Formation shales.TiO2 and Ti/Al indicated low terrigenous detrital influx in all three areas.However,Babio,Siex,and Ni/Al indicated high productivity in the Jiaoshiba area.V/Cr,Ni/Co,and U/Th indicated higher oxygen content with larger fluctuations in the Zhaotong and Weiyuan areas.Fe,Mn,and Y concentrations and the Fe/Ti ratio implied greater active hydrothermal activity in the Weiyuan area.These heterogeneities were considered to be closely related to the paleoenvironment and paleogeography,and the large basement faults that developed during the Chuanzhong paleo-uplift could have provided vents for deep-hydrothermal-fluid upwelling.The redox indices(V/Cr,Ni/Co,and U/Th)and a paleoproductivity proxy(Ni/Al)displayed a significant correlation with the TOC,suggesting that both excellent preservation conditions and high paleoproductivity were the controlling factors for the enrichment of organic matter in the Longmaxi Formation shale.There was no obvious correlation between the clastic influx proxy(Ti/Al)and the TOC due to the extremely low supply of terrigenous debris.The hydrothermal indicator(Fe/Ti)was negatively correlated with the TOC in the Weiyuan area,indicating that hydrothermal activity may have played a negative role in the accumulation of organic matter.This study suggests that the enrichment of organic matter in the Longmaxi Formation marine shale varied according to the paleogeography and sedimentary environment. 展开更多
关键词 geochemical index organic-matter ENRICHMENT PALEOGEOGRAPHY hydrothermal fluid Sichuan Basin
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Evaluating the Environmental Health Effect of Bamboo-Derived Volatile Organic Compounds through Analysis the Metabolic Indices of the Disorder Animal Model 被引量:3
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作者 GUO Ming HU Zheng Qing +4 位作者 STRONG P.James SMIT Anne-Marie XU Jian Wei FAN Jun WANG Hai Long 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2015年第8期595-605,共11页
Objective To identify the bamboo VOCs (volatile organic compounds) effect on animal physiological indices, which associated with human health. Methods GC/MS was used to analyze the volatile organic compounds from Mos... Objective To identify the bamboo VOCs (volatile organic compounds) effect on animal physiological indices, which associated with human health. Methods GC/MS was used to analyze the volatile organic compounds from Moso bamboo (Phyllostachys heterocyla cv. pubescens). The effect of VOCs on environmental health was evaluated by analyzing the metabolic indices of the type 2 diabetic mouse model. Results Spectra of VOC generated by GC/MS were blasted against an in-house MS library confirming the identification of 33 major components that were manually validated. The relative constituent compounds as a percentage of total VOCs determined were alcohols (34.63%), followed by ether (22.02%), aldehyde (15.84%), ketone (11.47%), ester (4.98%), terpenoid (4.38%), and acids (3.83%). Further experimentation established that the metabolic incidence of the disease can be improved if treated with vanillin, leaf alcohol,β-ionone and methyl salicylate. The effects of these VOCs on type 2 diabetes were evident in the blood lipid and blood glucose levels. Conclusion Our model suggests that VOCs can potentially control the metabolic indices in type 2 diabetes mice. This experiment data also provides the scientific basis for the comprehensive utilization of ornamental bamboos and some reference for other similar study of environmental plants. 展开更多
关键词 Phyllostachys heterocyla cv.pubescens Volatile organic compounds Metabolic index Type 2 diabetes
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Determination of physical properties for the mixtures of [BMIM]Cl with different organic solvents 被引量:2
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作者 Hina Saba Xinjun Zhu +1 位作者 Ye Chen Yumei Zhang 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2015年第5期804-811,共8页
Physical properties including refractive index, density, viscosity and conductivity for binary mixtures of l-butyl- 3-methyl imidazolium chloride ([BMIM]CI) and different organic solvents at 298.15 K have been inves... Physical properties including refractive index, density, viscosity and conductivity for binary mixtures of l-butyl- 3-methyl imidazolium chloride ([BMIM]CI) and different organic solvents at 298.15 K have been investigated. Ex- cess molar volumes have been calculated and obtained data has been fitted by the Redlich-Kister equation. The density and refractive index were found to increase with increasing concentration of [BMIM]CI, however, excep- tions do exist as in the case of dimethyl sulfoxide (DMSO)/[BMIM]CI. For DMSO/[BMIM]CI, the density decreases with increasing concentration. The addition of different organic solvents was able to disrupt the interactions within mixtures, leading to free mobility of ions. The free mobility of ions has been found to enhance conductivity and decrease viscosity to varying extents in all mixtures studied. It has been observed that solubility parameters, dielectric constants and composition of the solvents used play a vital role in determining the resultant properties. The data obtained will play an important role in understanding the effect of the addition of organic solvents in ILs to enhance their applicability. 展开更多
关键词 Ionic liquid Viscosity Conductivity Refractive index Density Binary mixtures organic solvents
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Regulating Charge and Exciton Distribution in High-Performance Hybrid White Organic Light-Emitting Diodes with n-Type Interlayer Switch 被引量:1
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作者 Dongxiang Luo Yanfeng Yang +3 位作者 Ye Xiao Yu Zhao Yibin Yang Baiquan Liu 《Nano-Micro Letters》 SCIE EI CAS 2017年第4期3-10,共8页
The interlayer(IL) plays a vital role in hybrid white organic light-emitting diodes(WOLEDs); however,only a negligible amount of attention has been given to n-type ILs. Herein, the n-type IL, for the first time,has be... The interlayer(IL) plays a vital role in hybrid white organic light-emitting diodes(WOLEDs); however,only a negligible amount of attention has been given to n-type ILs. Herein, the n-type IL, for the first time,has been demonstrated to achieve a high efficiency, high color rendering index(CRI), and low voltage trade-off.The device exhibits a maximum total efficiency of 41.5 lm W^(-1), the highest among hybrid WOLEDs with n-type ILs. In addition, high CRIs(80–88) at practical luminances(C1000 cd m^(-2)) have been obtained, satisfying the demand for indoor lighting. Remarkably, a CRI of 88 is the highest among hybrid WOLEDs. Moreover, the device exhibits low voltages, with a turn-on voltage of only 2.5 V([1 cd m^(-2)), which is the lowest among hybrid WOLEDs. The intrinsic working mechanism of the device has also been explored; in particular, the role of n-type ILs in regulating the distribution of charges and excitons has been unveiled. The findings demonstrate that the introduction of n-type ILs is effective in developing high-performance hybrid WOLEDs. 展开更多
关键词 White light HYBRID INTERLAYER Color rendering index organic light-emitting diodes
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Definition and Application of Topological Index Based on Bond Connectivity 被引量:1
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作者 王振东 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2003年第2期85-88,共4页
Bond connectivity topological index S i based on chemical bonds was defined by using a matrix method.And S i is formed by atomic parameters such as the number of valence electrons,the number of the highest main quan... Bond connectivity topological index S i based on chemical bonds was defined by using a matrix method.And S i is formed by atomic parameters such as the number of valence electrons,the number of the highest main quantum of atoms and the bonding electrons and bond parameters such as the length of bonds,the electronegativity difference of bonding atoms.The molecular bond connectivity topological index S is composed of S i.The thermodynamic properties of saturated hydrocarbons,unsaturated hydrocarbons,oxygen organic,methane halide and transitional element compounds and the molecular bond connectivity topological index S have an optimal correlative relationship. 展开更多
关键词 bond connectivity topological index QSPR organic system transitional elements
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Comparison of Organic Sector Development in Six Balkan Countries
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作者 Ekaterina Arabska 《Economics World》 2014年第1期36-44,共9页
The study elaborates and examines a method for evaluation of organic farming development according to 10 indicators estimated by experts' opinion. It could be used for making comparisons in different countries, regio... The study elaborates and examines a method for evaluation of organic farming development according to 10 indicators estimated by experts' opinion. It could be used for making comparisons in different countries, regions, or even time periods on the basis of the 10 main indicators determined considering organic operators, organic area, organic production, organic farms' structure, resources, access to market, institutional support, education and training, science and technology, environmental protection, each one of them including sub-indicators. The proposed organic development index (ODI) could be used as a complex indicator for organic sector development embracing different and very significant aspects rather than only nowadays used organic area, percentage, sales, etc collected data for which are still questionable and difficult. The method was put into practice for six Balkan countries (Bulgaria, Serbia, Montenegro, Bosnia and Herzegovina, Turkey, and Romania). The calculations of ODI show very low results--not well developed and competitive sector suffering the interference of international open markets. Turkey, Bulgaria, and Romania perform better while Western Balkan countries (Serbia, Montenegro, and Bosnia and Herzegovina) are still at the beginning of organic sector development. 展开更多
关键词 organic farming organic indicators organic development index (ODI) organic data SUSTAINABLEDEVELOPMENT sustainable agriculture
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Estimation and Prediction of Bioconcentration Factors of Nonionic Organic Chemicals in Fish by Electrotopological State Indices and Structural Parameter 被引量:8
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作者 冯长君 杨伟华 沐来龙 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2008年第5期575-587,共13页
Based on the characteristics of atom types, Hall's electrotopological state indices (En) are calculated for 165 nonionic organic compounds. On the basis of the characteristics of substituent and conjugated matrix, ... Based on the characteristics of atom types, Hall's electrotopological state indices (En) are calculated for 165 nonionic organic compounds. On the basis of the characteristics of substituent and conjugated matrix, a novel molecular structure parameter (G) is defined and calculated for 165 molecules in this paper. En and G show good structural selectivity for organic molecules. G, a satisfactory relationship between bioconcentration factor (BCF) and En, is expressed as: 1gBCF = -0.283 + 1.246G + 0.079E42 + 0.351E9- 0.063E17 (n' = 122, R = 0.967, F = 425.636, s = 0.394), which could provide estimation and prediction for the lgBCF of nonionic organic chemicals. Furthermore, the model is examined to validate overall robustness with Jackknife tests, and the independent variables in model do not exist cross correlation with VIF. All these regression results show that the new parameter G and electrotopological state index have good rationality and efficiency. It is concluded that the En and G will be used widely in quantitative structure-property/activity relationship (QSPR/QSAR) research. 展开更多
关键词 nonionic organic compound bioconcentration factor electrotopologicai state index structure parameter QSAR
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金针菇菌糠对三黄鸡生长性能、血清生化指标、免疫器官指数及回肠形态的影响 被引量:1
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作者 李元晓 刘丹 +1 位作者 张才 马彦博 《饲料研究》 CAS 北大核心 2024年第16期53-57,共5页
试验旨在研究金针菇菌糠对三黄鸡生长性能、血清生化指标、免疫器官指数和回肠形态的影响。试验选取1日龄体重相近健康的三黄鸡192只(公、母各半),随机分为4组,每组6个重复,每个重复8只鸡。对照组饲喂基础饲粮,试验组分别在基础饲粮中添... 试验旨在研究金针菇菌糠对三黄鸡生长性能、血清生化指标、免疫器官指数和回肠形态的影响。试验选取1日龄体重相近健康的三黄鸡192只(公、母各半),随机分为4组,每组6个重复,每个重复8只鸡。对照组饲喂基础饲粮,试验组分别在基础饲粮中添加2%、5%和7%金针菇菌糠。试验期48 d。结果显示,金针菇菌糠对三黄鸡生长性能、脾脏指数和回肠形态无显著影响(P>0.05)。与对照组相比,7%金针菇菌糠能够提高法氏囊指数(P<0.05),增加血清中白蛋白和高密度脂蛋白胆固醇水平(P<0.05),降低低密度脂蛋白胆固醇、尿素氮、胆固醇和甘油三酯水平(P<0.05)。研究表明,饲喂金针菇菌糠对三黄鸡生长性能和回肠形态无影响,添加7%金针菇菌糠可以改善免疫器官指数、血清脂质代谢和蛋白质代谢。 展开更多
关键词 金针菇菌糠 三黄鸡 生长性能 血清生化指标 免疫器官指数 回肠形态
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Effect of Copper Toxicity on Lymphoid Organs in Broilers 被引量:2
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作者 CUIHeng-min YANGGuang PENGXi DENGJun-liang LIDe-bing 《Agricultural Sciences in China》 CAS CSCD 2005年第3期224-229,共6页
The experiment was conducted to examine the effect of copper toxicity on lymphoid organs by experimental pathology andflow cytometry (FCM). 180 one-day-old Avian broilers were divided into three groups, and fed diets ... The experiment was conducted to examine the effect of copper toxicity on lymphoid organs by experimental pathology andflow cytometry (FCM). 180 one-day-old Avian broilers were divided into three groups, and fed diets as follows: 1) Control(Cu 11.97 mg kg-1 diet), 2) Cu- toxic groupⅠ(Cu 650 mg kg-1) and 3) Cu- toxic groupⅡ(Cu 850 mg kg-1) for six weeks.Compared with the control, the growth index of the thymus, spleen and bursa of Fabricius were markedly reduced (P<0.05or P<0.01), the G0/G1 phase of cell cycles of the thymus, spleen and bursa of Fabricius was higher (P<0.05 or P<0.01), whilethe S phase and proliferating index were lower (P<0.05 or P<0.01) in both Cu-toxic group Ⅰ and Cu-toxic group Ⅱ. Theresults demonstrated that Cu toxicity seriously impaired the progression of lymphocytes from the G0/G1 phase to the Sphase, inhibited the growth and development of lymphoid organs. 展开更多
关键词 Copper toxicity Growth index Cell cycle Lymphoid organ BROILER
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Phytoplanktonic Community of Organically Polluted Tropical Reservoirs in Eastern India
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作者 SANJIB Kumar Das DIBYENDU Biswas SUDIPTO Roy 《应用与环境生物学报》 CAS CSCD 北大核心 2007年第4期449-453,共5页
Plankton communities of three reservoirs of India reflect the direct relationship with organic pollution. The assessment of water quality as highly or lowly organically polluted for the three water bodies has been ach... Plankton communities of three reservoirs of India reflect the direct relationship with organic pollution. The assessment of water quality as highly or lowly organically polluted for the three water bodies has been achieved with help of algal community, which can be used as an indicator of organic pollution. Algal pollution indices according to Palmer[1] and Watanabe[2] and based on genus and species were used in rating water samples for high or low organic pollution. Among 26 genera of algae found in India, 20 most frequent and common genera were taken into account for indexing pollution status. Water quality index (WQI) on the basis of weighting and rating of the chemical parameter was also used to correlate the Palmer index with physico-chemical parameters of the three reservoirs. Fig 5, Tab 3, Ref 展开更多
关键词 浮游生物 储蓄泡 海藻 水质量 有机污染 帕墨索引
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传统知识组织方法的智能力 被引量:3
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作者 苏新宁 《科技情报研究》 CSSCI 2024年第1期1-9,共9页
[目的/意义]通过对传统知识组织方法的体系、规则分析,凝练出传统知识组织方法的智能能力,并将其融入人工智能技术,以增强人工智能信息处理的精准与高效。[方法/过程]文章通过回顾知识组织的发展过程,分析传统知识组织方法的内在结构,... [目的/意义]通过对传统知识组织方法的体系、规则分析,凝练出传统知识组织方法的智能能力,并将其融入人工智能技术,以增强人工智能信息处理的精准与高效。[方法/过程]文章通过回顾知识组织的发展过程,分析传统知识组织方法的内在结构,深入探讨了传统知识组织方法的机理。[结果/结论]研究认为,知识组织经过数百年的发展演进,能从不同角度去反映各学科的知识体系、学科体系,能从知识多样化的关联建立知识间的语义关系,可采用科学的知识组织方法将不同形式、不同类型、不同结构的知识关联并融合在一起,这些能力为人工智能把握知识体系、探索知识间的关系、推理科学问题中的相关可能性,以及拓展或聚焦知识和词汇、分析事物之间的关系等提供了更加有效的途径。人工智能在信息处理领域的发展应当与知识组织密切配合,充分发挥知识组织的潜在智能力。 展开更多
关键词 知识组织 人工智能 分类法 主题法 信息组织
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