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High-Performance Organic Field-Effect Transistors Based on Two-Dimensional Vat Orange 3 Crystals
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作者 闫宁 熊志仁 +1 位作者 秦成兵 李小茜 《Chinese Physics Letters》 SCIE EI CAS CSCD 2024年第2期122-128,共7页
The exploration and research of low-cost,environmentally friendly,and sustainable organic semiconductor materials are of immense significance in various fields,including electronics,optoelectronics,and energy conversi... The exploration and research of low-cost,environmentally friendly,and sustainable organic semiconductor materials are of immense significance in various fields,including electronics,optoelectronics,and energy conversion.Unfortunately,these semiconductors have almost poor charge transport properties,which range from∼10^(−4) cm^(2)·V^(−1)·s^(−1) to∼10^(−2) cm^(2)·V^(−1)·s^(−1).Vat orange 3,as one of these organic semiconductors,has great potential due to its highly conjugated structure.We obtain high-quality multilayered Vat orange 3 crystals with two-dimensional(2D)growth on h-BN surfaces with thickness of 10–100 nm using physical vapor transport.Raman’s results confirm the stability of the chemical structure of Vat orange 3 during growth.Furthermore,by leveraging the structural advantages of 2D materials,an organic field-effect transistor with a 2D vdW vertical heterostructure is further realized with h-BN encapsulation and multilayered graphene contact electrodes,resulting in an excellent transistor performance with On/Off ratio of 104 and high field-effect mobility of 0.14 cm^(2)·V^(−1)·s^(−1).Our results show the great potential of Vat orange 3 with 2D structures in future nano-electronic applications.Furthermore,we showcase an approach that integrates organic semiconductors with 2D materials,aiming to offer new insights into the study of organic semiconductors. 展开更多
关键词 TRANSISTOR orange SEMICONDUCTORS
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Global analysis of basic leucine zipper transcription factors in trifoliate orange and the function identification of PtbZIP49 in salt tolerance
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作者 Yuanyuan Xu Qiuling Hui +5 位作者 Meng Li Hongxian Peng Yizhong He Changpin Chun Liangzhi Peng Xingzheng Fu 《Horticultural Plant Journal》 SCIE CAS CSCD 2024年第1期115-130,共16页
As one of the most widely distributed and highly conserved transcription factors in eukaryotes,basic leucine zipper proteins(bZIPs)are involved in a variety of biological processes in plants,but they are largely unkno... As one of the most widely distributed and highly conserved transcription factors in eukaryotes,basic leucine zipper proteins(bZIPs)are involved in a variety of biological processes in plants,but they are largely unknown in citrus.In this study,56 bZIP family members were identified genome-wide from an important citrus rootstock,namely trifoliate orange(Poncirus trifoliata L.Raf.),and these putative bZIPs were named PtbZIP1—PtbZIP56.All PtbZIPs were classified into 13 subgroups by phylogenetic comparison with Arabidopsis thaliana bZIPs(AtbZIPs),and they were randomly distributed on nine known(50 genes)chromosomes and one unknown(6 genes)chromosome.Sequence analysis revealed the detailed characteristics of PtPZIPs,including their amino acid length,isoelectric point(pI),molecular weight(MW),predicted subcellular localization,gene structure,and conserved motifs.Prediction of promoter elements suggested the presence of drought,low-temperature,wound,and defense and stress responsive elements,as well as multiple hormone-responsive cis-acting elements.Spatiotemporal expression analysis showed the transcriptional patterns of PtbZIPs in different tissues and under dehydration,high salt,ABA,and IAA treatments.In addition,21 PtbZIPs were predicted to have direct or indirect protein—protein interactions.Among these,PtbZIP49 was experimentally proven to interact with PtbZIP1 or PtbZIP11 by using a yeast two-hybrid assay and bimolecular fluorescence complementation(BiFC).Subcellular localization analysis further revealed that PtbZIP1,PtbZIP11,and PtbZIP49 were localized in the nucleus.Moreover,PtbZIP49 was functionally identified as having an important role in salt stress via ectopic expression in A.thaliana and silenced in trifoliate orange using virus-induced gene silencing(VIGS).This study provided comprehensive information on PtbZIP transcription factors in citrus and highlights their potential functions in abiotic stress. 展开更多
关键词 BZIP CITRUS Trifoliate orange Abiotic stress Expression pattern
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Green Synthesis of Silver Nanoparticles Using Aqueous Orange and Lemon Peel Extract and Evaluation of Their Antimicrobial Properties
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作者 Amra Bratovcic Amna Dautovic 《Advances in Nanoparticles》 CAS 2024年第2期11-28,共18页
Green synthesis of silver nanoparticles (AgNPs) using aqueous extracts of orange and lemon peels, as a reducing agent, and silver nitrate salts as a source of silver ions is a promising field of research due to the ve... Green synthesis of silver nanoparticles (AgNPs) using aqueous extracts of orange and lemon peels, as a reducing agent, and silver nitrate salts as a source of silver ions is a promising field of research due to the versatility of biomedical applications of metal nanoparticles. In this paper, AgNPs were synthetized at different reaction parameters such as the type and concentration of the extracts, metal salt concentration, temperature, speed stirring, and pH. The antibacterial properties of the obtained silver nanoparticles against E. coli, as well as the physical and chemical characteristics of the synthesized silver nanoparticles, were investigated. UV-Vis spectroscopy was used to confirm the formation of AgNPs. In addition to green biogenic synthesis, chemical synthesis of silver nanoparticles was also carried out. The optimal temperature for extraction was 65˚C, while for the synthesis of AgNPs was 35˚C. The synthesis is carried out in an acidic environment (pH = 4.7 orange and pH = 3.8 lemon), neutral (pH = 7) and alkaline (pH = 10), then for different concentrations of silver nitrate solution (0.5 mM - 1 mM), optimal time duration of the reaction was 60 min and optimal stirring speed rotation was 250 rpm on the magnetic stirrer. The physical properties of the synthesized silver nanoparticles (conductivity, density and refractive index) were also studied, and the passage of laser light through the obtained solution and distilled water was compared. Positive inhibitory effect on the growth of new Escherichia coli colonies have shown AgNPs synthesized at a basic pH value and at a 0.1 mM AgNO<sub>3</sub> using orange or lemon peel extract, while for a 0.5 mM AgNO<sub>3 </sub>using lemon peel extract. 展开更多
关键词 Green Synthesis Silver Nanoparticles orange and Lemon Peel Extract Antibacterial Activity Escherichia coli
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Single-cell RNA sequencing reveals gonadal dynamic changes during sex differentiation in hermaphroditic protogynous orange-spotted grouper(Epinephelus coioides)
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作者 Xi Wu Chao-Yue Zhong +4 位作者 Yang Yang Tong Wang Yu-Hao Tao Zi-Ning Meng Xiao-Chun Liu 《Zoological Research》 SCIE CAS CSCD 2023年第2期269-272,共4页
DEAR EDITOR,Sex differentiation is a complex process that requires many factors to regulate gonadal proliferation, differentiation,development, and organization. In teleosts, the molecular mechanisms of sex differenti... DEAR EDITOR,Sex differentiation is a complex process that requires many factors to regulate gonadal proliferation, differentiation,development, and organization. In teleosts, the molecular mechanisms of sex differentiation are diverse and unclear. 展开更多
关键词 gonadal orange DYNAMIC
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Chromosome-level genome assembly of Salvia miltiorrhiza with orange roots uncovers the role of Sm2OGD3 in catalyzing 15,16-dehydrogenation of tanshinones
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作者 Xian Pan Yujie Chang +6 位作者 Caili Li Xiaoxiao Qiu Xinyun Cui Fanqi Meng Sixuan Zhang Xian’en Li Shanfa Lu 《Horticulture Research》 SCIE CSCD 2023年第6期30-42,共13页
Salvia miltiorrhiza is well known for its clinical practice in treating heart and cardiovascular diseases.Its roots,used for traditional Chinese medicine materials,are usually brick-red due to accumulation of red pigm... Salvia miltiorrhiza is well known for its clinical practice in treating heart and cardiovascular diseases.Its roots,used for traditional Chinese medicine materials,are usually brick-red due to accumulation of red pigments,such as tanshinone IIA and tanshinone I.Here we report a S.miltiorrhiza line(shh)with orange roots.Compared with the red roots of normal S.miltiorrhiza plants,the contents of tanshinones with a single bond at C-15,16 were increased,whereas those with a double bond at C-15,16 were significantly decreased in shh.We assembled a high-quality chromosome-level genome of shh.Phylogenomic analysis showed that the relationship between two S.miltiorrhiza lines with red roots was closer than the relationship with shh.It indicates that shh could not be the mutant of an extant S.miltiorrhiza line with red roots.Comparative genomic and transcriptomic analyses showed that a 1.0 kb DNA fragment was deleted in shh Sm2OGD3m.Complementation assay showed that overexpression of intact Sm2OGD3 in shh hairy roots recovered furan D-ring tanshinone accumulation.Consistently,in vitro protein assay showed that Sm2OGD3 catalyzed the conversion of cyptotanshinone,15,16-dihydrotanshinone I and 1,2,15,16-tetrahydrotanshinone I into tanshinone IIA,tanshinone I and 1,2-dihydrotanshinone I,respectively.Thus,Sm2OGD3 functions as tanshinone 15,16-dehydrogenase and is a key enzyme in tanshinone biosynthesis.The results provide novel insights into the metabolic network of medicinally important tanshinone compounds. 展开更多
关键词 OGD ROOTS orange
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CsTT8 regulates anthocyanin accumulation in blood orange through alternative splicing transcription
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作者 Jianhui Wang Rui Xu +2 位作者 Shuangping Qiu Weichun Wang Fan Zheng 《Horticulture Research》 SCIE CSCD 2023年第10期215-226,共12页
A homologous gene of basic-helix-loop-helix AtTT8 in Arabidopsis thaliana was identified in juice sac cells of pulp tissues from blood orange(Citrus sinensis cv‘Tarocco’),which was designated as CsTT8 in this study.... A homologous gene of basic-helix-loop-helix AtTT8 in Arabidopsis thaliana was identified in juice sac cells of pulp tissues from blood orange(Citrus sinensis cv‘Tarocco’),which was designated as CsTT8 in this study.Additionally,the mRNA levels of TT8 with the full-length open reading frame were significantly higher in‘Tarocco’than in mutant fruit lacking pigment in pulp or peel tissues.However,an alternative splicing transcript,Δ15-TT8,with the fourth exon skipped,was also identified from transcripts different in length from that in‘Tarocco’.The mRNA levels ofΔ15-TT8 were higher in mutant fruit lacking pigment in pulp or peel tissues than in the wild type.Therefore,the TT8/Δ15-TT8 mRNA level ratio was found to be crucial for sufficient pigment in either pulp or peel tissues.TT8 from blood orange fruit demonstrated the capacity for nucleus localization and binding to other proteins.In contrast,Δ15-TT8,lacking the fourth exon,lost its ability to interact with RUBY1 and to localize at the nucleus.Using a dual luciferase reporter assay and transient overexpression in tobacco,we proved that two regulatory complexes formed by a functional TT8 with different MYB(v-myb avian myeloblastosis viral oncogene homolog)-type partners significantly promoted expression of an anthocyanin biosynthetic gene and a proton pumping gene,leading to anthocyanin and citrate production.Our findings suggest that TT8,rather than dysfunctionalΔ15-TT8,is possibly involved in modulating anthocyanin biosynthesis and its transport into vacuoles by proton gradients.However,increased mRNA levels of the dysfunctional alternative splicing transcript may act as a negative feedback to downregulate TT8 expression and limit anthocyanin accumulation in blood oranges. 展开更多
关键词 orange PUMPING TRANSIENT
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Understanding changes in volatile compounds and fatty acids of Jincheng orange peel oil at different growth stages using GC-MS
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作者 XIE Jiao CAO Qi +2 位作者 WANG Wen-jun ZHANG Hong-yan DENG Bing 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2023年第7期2282-2294,共13页
Jincheng orange(Citrus sinensis Osbeck)is widely grown in Chongqing,China,and is commonly consumed because of its characteristic aroma contributed by the presence of diverse volatile compounds.The changes in aroma dur... Jincheng orange(Citrus sinensis Osbeck)is widely grown in Chongqing,China,and is commonly consumed because of its characteristic aroma contributed by the presence of diverse volatile compounds.The changes in aroma during the development and maturation of fruit are indicators for ripening and harvest time.However,the influence of growth stages on the volatile compounds in Jincheng orange remains unclear.In addition,volatiles originate from fatty acids,most of which are the precursors of volatile substances.On this basis,gas chromatography-mass spectrometry(GC-MS)was performed to elaborate the changes in volatile constituents and fatty acids as precursors.This study tested proximately 60 volatiles and 8 fatty acids at 9 growth and development stages(AF1-AF9).Of those compounds,more than 92.00%of total volatiles and 87.50%of fatty acids were terpenoid and saturated fatty acids,respectively.As shown in the PCA plot,the AF5,AF6,and AF9 stages were confirmed as completely segregated and appeared different.In addition,most of the volatiles and fatty acids first increased at the beginning of the development stage,then decreased from the AF6 development stage,and finally increased at the AF9 maturity stage.Moreover,the highest contents of terpenoid,alcohols,aldehydes,ketones,and saturated fatty acids in Jincheng orange peel oil were d-limonene,linalool,octanal,cyclohexanone,and stearic acid during development stages,respectively.Our results found that the growth stages significantly affected the volatile constituents and precursors in Jincheng orange peel oil. 展开更多
关键词 Jincheng orange volatile compounds fatty acids growth stages
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Use of Agent Purple, Agent Orange and Agent Blue on Royal Thai Air Force Base Perimeters in Thailand during the Vietnam War
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作者 Kenneth R. Olson Larry Cihacek 《Open Journal of Soil Science》 CAS 2023年第5期243-271,共29页
Seven Royal Thai Air Force bases in Thailand were used by the United States Air Force (USAF) during the Vietnam War as staging hubs for operations in Laos and Cambodia. Five bases in Thailand, including Nakhon Phanom ... Seven Royal Thai Air Force bases in Thailand were used by the United States Air Force (USAF) during the Vietnam War as staging hubs for operations in Laos and Cambodia. Five bases in Thailand, including Nakhon Phanom (NKP), Ubon, Korat, U-Tapao and Udorn endured sniper fire interdiction, perimeter penetration, and sapper (combat engineer) attacks. Nam Phong, an eighth Royal Thai Air Force base was used by the United States Marine Corps air operations starting in 1972. US Military personnel stationed throughout Thailand were also attacked by Communists insurgents. Two herbicides, Agent Purple and Agent Orange containing 2, 4, 5-T contaminated with dioxin (TCDD—2, 3, 7, 8 tetrachlorodibenzodioxin) and a third herbicide, the arsenic-based Agent Blue, were routinely received at these Thailand airbases in support of air missions and to keep airbases and perimeter fences clear of vegetation. Udorn Royal Thai Air Force (RTAF) base, established in the 1950s was consistently a target of enemy attacks during this period. The Thai government allowed the United States to use five bases, covertly, and two other Thai bases, openly, due to concerns that the civil war inside Laos might spread into Thailand. The US Air Force began, in 1961, to provide the air defense of Thailand and to fly reconnaissance flights over Laos. Under the United States and Thailand’s “gentleman’s agreement”, the bases used by the USAF were considered RTAF bases under the command of Thai officers. The USAF at Udorn was under the command of the United States Pacific Air Forces (PACAF) Thirteenth Air Force and was used to temporarily store and distribute Agent Purple, Agent Orange and Agent Blue to Laos’s airfields for spraying of the Ho Chi Minh Trail. Thai air police controlled access to the bases using sentry dogs, observation towers, and machine gun emplacements. The USAF Security police assisted the Thai air police in base defense. In this study, we document the use of Agent Orange, Agent Purple and Agent Blue on Royal Thai Air Force base perimeters and grounds during the Vietnam War, potential active-duty service personnel exposure to these toxic herbicides and health impacts of the contaminant dioxin TCDD and arsenic on U.S. Vietnam Era Veterans and Vietnam Veterans. This documentation is important evidence in the “assumption of exposure” for health claims to the US Veterans Administration (VA) by veterans that served in Thailand between 1962 and 1976. 展开更多
关键词 Agent Blue Agent orange Agent Purple Thailand DIOXIN Arsenic
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Assessment of quality of bread incorporated with defatted sweet orange seed flour
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作者 Peter Isah Akubor Charity Hule Alex Kombo 《Food and Health》 2023年第1期11-19,共9页
The effect of incorporation of defatted flour from seeds of sweet orange on wheat flour bread quality was investigated.Seeds were removed from the fruits of sweet orange,sun dried,milled and defatted with ethanol.The ... The effect of incorporation of defatted flour from seeds of sweet orange on wheat flour bread quality was investigated.Seeds were removed from the fruits of sweet orange,sun dried,milled and defatted with ethanol.The defatted orange seed flour was incorporated into wheat flour at 5,10,and 15%.The chemical composition and physicochemical properties of the composite flours were assessed.The composite flours were used to prepare breads and the nutrients composition,antioxidant,physical and sensory qualities of the breads were determined.The water absorption,oil absorption,emulsifying and swelling capacities increased while foaming capacity and bulk density decreased with the addition of the defatted seed flour in the blends.The addition of defatted seed flour increased significantly(P<0.05)the ash(1.98%–3.05%),crude fiber(1.26%–2.98%)and carbohydrate(47.78%–55.90%)contents but decreased the moisture(23.59%–20.37%),crude fat(12.43%–8.98%)and protein(12.96%–8.72%)contents of the breads.The calcium,sodium,iron and zinc contents improved but phosphorus and potassium levels decreased with the incorporation of the defatted seed flour.The phenols,flavonoids,alkaloids,saponins,and carotenoids contents varied from 85.03–18.59 mg/100g,3.11–7.83 mg/100g,7.30–12.06 mg/100g,1.87–2.06 mg/100g,and 5.46–15.84 mg/100g,respectively.The loaf volume,specific volume and oven spring of breads decreased while loaf weight increased with the incorporation of defatted flour.The antioxidant activities of breads containing 15%defatted seed flour increased over that the 100%wheat bread.The ratings for the sensory attributes decreased with the addition of defatted seed flour in the breads.However,the ratings for the sensory qualities of breads containing 5 and 10%defatted seed flours did not differ significantly(P<0.05)from those of the 100%wheat bread.It is concluded that defatted flour from seeds of sweet orange fruits could be used to substitute 10%wheat flour in bread without adversely affecting the qualities of the breads. 展开更多
关键词 BREAD orange seed chemical composition sensory quality antioxidant activity PHYTOCHEMICALS
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Effects of Agro-Ecological Practices on the Productivity of Orange-Fleshed Sweet Potato (Ipomoea batatas (L.) Lam) and Soil Fertility in the Sudano-Sahelian Zone of Burkina Faso
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作者 Koulibi Fidèle Zongo Aboubacar Coulibaly +4 位作者 Daouda Guebre Aïssatou Naba Hervé Nandkangre Abdramane Sanon Edmond Hien 《Agricultural Sciences》 2023年第12期1624-1642,共19页
This study consisted to evaluate the effects of ecological practices on the yield performance of the JEWEL of orange-fleshed sweet potato (Ipomoea batatas (L.) Lam). The study was conducted in a Sudano-Sahelian croppi... This study consisted to evaluate the effects of ecological practices on the yield performance of the JEWEL of orange-fleshed sweet potato (Ipomoea batatas (L.) Lam). The study was conducted in a Sudano-Sahelian cropping system (Lantargou, eastern region of Burkina Faso). Agro-ecological practices consisted of the inputs of 3.20 t/ha of compost + 2.45 t/ha of wood ash (CO + WA);4.90 t/ha of wood ash (WA);6.40 t/ha of compost (CO) were compared to control with no inputs (T<sub>0</sub>). Each treatment was repeated four times. The crop management consisted of plowing, harrowing, raising of ridges with 40 cm height, burying of treatments, transplanting of cuttings, two weeding’s, and using of biopesticide called PIOL for crop protection. Composite soil samples per treatment were also collected at tuber harvest and analyzed to determine the effects of treatments on residual soil fertility. Results showed that the plant heights and diameters under the CO were significantly (P < 0.001) improved by 16% and 12% compared to T<sub>0</sub>. The WA treatment significantly increased the number of large tubers by 43% (P ≤ 0.01) compared to T<sub>0</sub>. Total tuber numbers, large tuber numbers and tuber yields of sweet potato under CO + WA were significantly (P < 0.001) and respectively improved by 27%, 50% and 31% compared to T<sub>0</sub>. All treatments increased soil organic matter, N, P and K contents, and reduced soil acidity compared with those obtained under T<sub>0</sub>. Soil K content was improved by 39% under CO + WA, and soil N content by 34% under WA compared to T<sub>0</sub>. Soil C/N ratio under CO + WA was reduced by 20% compared others treatments. But, the CO + WA treatment outperformed by improving residual soil N content by 38%, and the WA treatment by increasing soil K content by 50% compared to T<sub>0</sub>. In addition, soil pHH<sub>2</sub>O increased by 1.2 units under WA treatment compared to T<sub>0</sub>. As conclusion, the application of 6.4 t/ha of compost performed well to improve the vegetative growth of orange-fleshed sweet potato while the inputs of 3.2 t/ha of compost + 2.45 t/ha of wood ash were efficacy to significantly increase the tuber yields and improve the residual fertility of soil. 展开更多
关键词 orange-Fleshed Sweet Potato COMPOST Wood Ash Vegetative Growth Yield Soil Residual Fertility
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2-硝基-4'-羟基二苯胺(HC Orange No.1)在鲫鱼肝脏中的富集及其对肝脏抗氧化指标的影响 被引量:10
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作者 孙媛媛 于红霞 +3 位作者 沈骅 张景飞 刘红玲 王晓蓉 《农业环境科学学报》 CAS CSCD 北大核心 2005年第1期26-30,共5页
采用室内模拟方法研究了2-硝基-4'-羟基二苯胺(HCOrangeNo.1)在鲫鱼(Carassiusauratus)肝脏中的富集规律及不同暴露时间对鲫鱼肝脏抗氧化指标的影响。结果表明,10d左右鲫鱼肝脏对HCOrangeNo.1的富集达到最大值,肝脏过氧化氢酶(CAT)... 采用室内模拟方法研究了2-硝基-4'-羟基二苯胺(HCOrangeNo.1)在鲫鱼(Carassiusauratus)肝脏中的富集规律及不同暴露时间对鲫鱼肝脏抗氧化指标的影响。结果表明,10d左右鲫鱼肝脏对HCOrangeNo.1的富集达到最大值,肝脏过氧化氢酶(CAT)、超氧化物歧化酶(SOD)、谷胱甘肽硫转移酶(GST)及还原型谷胱甘肽(GSH)对HCOrangeNo.1都非常敏感,其中GST活性和GSH含量总体上被诱导增加;SOD和CAT活性基本上都是先升高后受到抑制。上述抗氧化指标可考虑作为水生生态系统中HCOrangeNo.1污染的生物监测指标。 展开更多
关键词 2-硝基-4’-羟基二苯胺(HC orange No.1) 暴露 鲫鱼 抗氧化防御系统 生物富集
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含铁柱撑膨润土光催化降解Orange Ⅱ 被引量:8
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作者 李益民 温丽华 +1 位作者 刘颖 李海洋 《功能材料》 EI CAS CSCD 北大核心 2005年第6期874-876,880,共4页
制备了两种含铁柱撑膨润土(FeAlBent和FeBent),用XRD、BET、TEM对它们进行了性能表征。以偶氮染料OrangeⅡ为目标降解物,考察了它们作为复相Fenton催化剂的光催化性能,以及溶液的pH、H2O2浓度、催化剂用量对OrangeⅡ降解的影响,并与相... 制备了两种含铁柱撑膨润土(FeAlBent和FeBent),用XRD、BET、TEM对它们进行了性能表征。以偶氮染料OrangeⅡ为目标降解物,考察了它们作为复相Fenton催化剂的光催化性能,以及溶液的pH、H2O2浓度、催化剂用量对OrangeⅡ降解的影响,并与相应的均相Fenton反应进行了比较。结果表明FeAlBent和FeBent具有很高的比表面积(分别为194.2和114.6m2/g),用FeAlBent或FeBent作光催化剂的复相光助Fenton反应的催化性能明显优于相应的均相光助Fenton反应。此外复合铁铝柱撑膨润土(FeAlBent)比单一的铁柱撑膨润土(FeBent)在反应过程中具有更低的铁离子溶出量,它们还具有分离简单、重复使用性好等特点。 展开更多
关键词 光催化降解 铝铁柱撑膨润土 光助Fenton orange
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2-硝基-4’-羟基二苯胺(HC Orange No.1)在鲫鱼体内富集行为研究
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作者 孙媛媛 尹颖 +3 位作者 张景飞 刘红玲 王晓蓉 于红霞 《南京大学学报(自然科学版)》 CAS CSCD 北大核心 2004年第6期734-739,共6页
研究了鲫鱼暴露于 0 .9975mg/L 2_硝基_ 4’_羟基二苯胺 (HCOrangeNo .1 ) 96h后在实验室鱼水系统中的归趋 .用高效液相色谱分析了暴露鱼样和暴露水样在 6h ,1 2h ,2 4h ,3 6h ,4 8h ,60h ,72h ,96h的浓度 .鱼样的回收率为 84 .4 %~ 91... 研究了鲫鱼暴露于 0 .9975mg/L 2_硝基_ 4’_羟基二苯胺 (HCOrangeNo .1 ) 96h后在实验室鱼水系统中的归趋 .用高效液相色谱分析了暴露鱼样和暴露水样在 6h ,1 2h ,2 4h ,3 6h ,4 8h ,60h ,72h ,96h的浓度 .鱼样的回收率为 84 .4 %~ 91 .7%之间 ,相对标准偏差 (RSD)为0 .5 1 % .HCOrangeNo .1在水体中的浓度在 2 4h内下降较快 ,之后维持稳定 ;鱼体中化合物的积累在 3 6h达到最大 ,之后稍有下降 .利用BCF的快速测定方法和传统方法算出的lgBCF分别为 2 .3 5和 2 .14 . 展开更多
关键词 2-硝基-4’-羟基二苯胺(HC orange No.1) 高效液相色谱 生物富集 鲫鱼
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“Hell is Other People”: the Interpretation of Inter-human Relationship in AClockwork Orange from the Perspective of Existentialism
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作者 刘虹 《海外英语》 2011年第2X期167-169,171,共4页
Anthony Burgess's novel A Clockwork Orange explores human being's predicament of freedom—the contradiction between Libertarianism and Totalitarianism. The issues Burgess explores in this fiction share affinit... Anthony Burgess's novel A Clockwork Orange explores human being's predicament of freedom—the contradiction between Libertarianism and Totalitarianism. The issues Burgess explores in this fiction share affinities with what Sartrean existentialism elucidate. This paper attempts to discuss the inter-human relationship between the protagonist—Alex and other two important characters from the perspective of Sartre's elaboration of "being-with-others", to find the evidence for Sartre's famous dictum "hell is the other people." 展开更多
关键词 A Clockwork orange the OTHER being-with-others HELL
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黑田五寸胡萝卜中3个Orange基因的克隆与表达分析 被引量:2
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作者 王迎港 熊爱生 徐志胜 《核农学报》 CAS CSCD 北大核心 2021年第11期2482-2492,共11页
在植物中Orange(Or)蛋白对类胡萝卜素的生物合成和积累具有重要的作用。对胡萝卜全基因组分析后鉴定到3个Or基因,为分析3个Or基因与类胡萝卜素合成的相关性,以橙色胡萝卜品种黑田五寸为研究材料,克隆得到3个Or基因,并对其进行生物信息... 在植物中Orange(Or)蛋白对类胡萝卜素的生物合成和积累具有重要的作用。对胡萝卜全基因组分析后鉴定到3个Or基因,为分析3个Or基因与类胡萝卜素合成的相关性,以橙色胡萝卜品种黑田五寸为研究材料,克隆得到3个Or基因,并对其进行生物信息学分析及实时荧光定量(qRT-PCR)分析。序列分析表明,DcOr1、DcOr2和DcOr3的开放阅读框(ORF)全长分别为933、858和939 bp,分别编码310、285和312个氨基酸;推测的氨基酸序列含有4个高度保守的富含半胱氨酸区域。DcOr1和DcOr3均由8个外显子和7个内含子组成,DcOr2由7个外显子和6个内含子组成。进化树分析显示,DcOr1与DcOr2进化关系最近,而DcOr3与三裂叶薯Or蛋白(XP;31112030.1)进化关系最近。qRT-PCR结果表明,3个DcOr基因在30、60、90和120 d的胡萝卜根中均有表达,其中DcOr2的相对表达量最低,DcOr3在各个阶段的相对表达量都为最高,在90 d时达到峰值,且相对表达量趋势与DcPSY1和DcPSY2最接近,推测DcOr3与胡萝卜类胡萝卜素合成最相关。本研究为探究胡萝卜生长发育过程中类胡萝卜素的生物合成机制提供了一定的理论依据。 展开更多
关键词 orange蛋白 类胡萝卜素 基因克隆 表达分析 胡萝卜
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Orange公司股权价值的实物期权分析
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作者 田瑛 《当代经济》 2006年第07X期40-41,共2页
本文将通过采用实物期权定价的二叉树方法,对1999年香港长江实业集团转让的电信子公司Orange股权进行价值分析,说明实物期权在评价具有战略性、高科技和不确定性高的企业或项目价值方面所发挥的作用。
关键词 企业价值 价值评估 实物期权 orange公司
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orange是“橘子”吗?
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作者 王宏远 《英语知识》 2011年第12期43-43,共1页
【问】 [516] 如果你问周围学过英语的人同样一个问题:“‘橘子’英语怎么说”?他们十之八九都会回答“orange”。那么,orange是“橘子”吗?
关键词 orange 橘子 “橙子” 英语学习 英语单词
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Orange“换将”之谜
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作者 刘欣 《通信世界》 2004年第14期6-6,共1页
两年前,法国电信还在为投资“橙色梦想”的丰厚回报而欢欣鼓舞;两年后,Orange的表现不佳却令法国电信一筹莫展。15个月前,法国电信的CEOThierryBreton还曾经盛赞Trujillo卓越的管理才能,今天,这位“优秀人才”却不得不从Orange离职而去... 两年前,法国电信还在为投资“橙色梦想”的丰厚回报而欢欣鼓舞;两年后,Orange的表现不佳却令法国电信一筹莫展。15个月前,法国电信的CEOThierryBreton还曾经盛赞Trujillo卓越的管理才能,今天,这位“优秀人才”却不得不从Orange离职而去,留下一个遗憾的句号。是什么让Orange在两年内形势急转直下,试图用高层频繁变动的方式来扭转乾坤? 展开更多
关键词 orange公司 人事变动 发展战略 电信运营业
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Photodegradation of methyl orange by BiOI-sensitized TiO_2 被引量:10
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作者 Li Huiquan Cui Yumin +2 位作者 Hong Wenshan Hua Lin Tao Dongliang 《Rare Metals》 SCIE EI CAS CSCD 2012年第6期604-610,共7页
BiOI-sensitized titanium dioxide (TiO2) photocatalysts were prepared by a deposition method at room temperature and characterized by X-ray diffraction, X-ray photoelectron spectroscopy, and Brunauer–Emmett–Teller su... BiOI-sensitized titanium dioxide (TiO2) photocatalysts were prepared by a deposition method at room temperature and characterized by X-ray diffraction, X-ray photoelectron spectroscopy, and Brunauer–Emmett–Teller surface area measurements. The photocatalytic activities of the catalysts were evaluated for the degradation of methyl orange (MO) solution under UV and visible light irradiation. The effects of catalyst amount, initial pH value, initial concentration of MO, as well as KI amount were investigated. The repeatability of photocatalytic activity of the 1.7% BiOI/TiO2 catalyst was also tested. It is shown that BiOI sensitization enhances the photocatalytic activities of TiO2. With BiOI content increasing, the photocatalytic activities of BiOI/TiO2 under UV and visible light irradiation first increase, reaching a maximum around BiOI content of 1.7%, and then decrease with further increasing BiOI content. The 1.7% BiOI/TiO2 catalyst obviously exhibits much higher visible light photocatalytic activity than P25, and its UV light photocatalytic activity is slightly higher than that of P25. Under the conditions of a catalytic dose of 1.5 g.L-1, initial pH of 3.0, initial MO concentration of 20 mg.L-1, UV power of 300 W, and air flow rate of 0.8 L.min-1, complete degradatio is achieved within 60 min. The repeatability of photocatalytic activity of the 1.7% BiOI/TiO2 catalyst is highly reliable. 展开更多
关键词 sensitized TiO2 BiOI photocatalytic degradation methyl orange
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Development of a Non-Pollution Orange Fruit Expert System Software Based on ASP.NET 被引量:10
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作者 LI Yi-shan HONG Li-fang 《Agricultural Sciences in China》 CAS CSCD 2011年第5期805-812,共8页
Based on ASP.NET,a orange fruit tree fertilizer expert system software was developed.The system could simulate and decide an annual fertilization plan for young and mature trees in terms of geographical position and c... Based on ASP.NET,a orange fruit tree fertilizer expert system software was developed.The system could simulate and decide an annual fertilization plan for young and mature trees in terms of geographical position and climate.This paper introduced the design conditions,framework,production,and deployment of the system.It exhibited characters of orange specialty and was a typical online agriculture expert system.The use of the system for orange fruit management could decrease production cost,guarantee orange quality and improve economical benefit at the same time.Farmer using the system saved N input by 41-238 g/plant,P2O5 input 3-24 g/plant,and K2O input 1-36 g/plant,and got higher yield by 6-17 kg/plant. 展开更多
关键词 rational fertilization expert system orange fruit tree ASP.NET
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