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Seasonal variation of nitrogen and phosphorus in Xiaojiang River—A tributary of the Three Gorges Reservoir

Zhe LI , Jinsong GUO , Man LONG , Fang FANG , Jinping SHENG , Hong ZHOU ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 334-340 doi: 10.1007/s11783-009-0039-y

Abstract: The variation of TN/TP ratio was caused by a variation in TN rather than in TP when TN/TP<22.When TN/TP ≥ 22, the variation of TP affected the TN/TP ratio more significantly than TN.

Keywords： Three Gorges Reservoir     eutrophication     nitrogen     phosphorus     seasonal variation     chlorophyll    

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Nitrogen pollution and source identification of urban ecosystem surface water in Beijing

Yufen REN, Zhiwei XU, Xinyu ZHANG, Xiaoke WANG, Xiaomin SUN, D. J. BALLANTINE, Shengzhong WANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 1,   Pages 106-116 doi: 10.1007/s11783-012-0474-z

Abstract: We assessed the spatial and seasonal variation in concentrations of total nitrogen and different nitrogenExamination of seasonal variation showed that there was a significant inverse relationship between nitrate

Keywords： nitrogen concentration     spatial and seasonal variation     stable nitrogen isotope     urban ecosystem     source    

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Optimization for operating modes based on simulation of seasonal underground thermal energy storage

ZHAO Jun, CHEN Yan, LI Xinguo

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 298-301 doi: 10.1007/s11708-008-0053-y

Abstract: A simulation was performed, which concerned the feasibility of seasonal underground thermal energy storage
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Numerical simulation of underground seasonal cold energy storage for a 10 MW solar thermal power plant

Zulkarnain ABBAS, Yong LI, Ruzhu WANG

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 328-344 doi: 10.1007/s11708-020-0676-1

Abstract: This paper aims to explore an efficient, cost-effective, and water-saving seasonal cold energy storageThe proposed seasonal cooling mechanism is designed for the areas under typical weather conditions toThe proposed seasonal cooling system is capable of enhancing the efficiency of a solar thermal power

Keywords： seasonal cold energy storage     borehole heat exchangers     typical meteorological data     TRNSYS     condenser cooling    

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Seasonal and treatment-process variations in invertebrates in drinking water treatment plants

Zhiling Wu, Xianchun Tang, Hongbin Chen

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1354-6

Abstract: Abstract • Seasonal and treatment-process variations in invertebrates in a DWTP were analyzed. • Theeach treatment stage in a drinking water treatment plant between May 2015 and April 2016 and analyzed seasonal

Keywords： Invertebrates     Drinking water     Seasonal variations     Treatment process    

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Temperature variation of concrete box girder bridge

Jian WANG, Zhi FANG,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4,   Pages 407-413 doi: 10.1007/s11709-009-0053-y

Abstract: On the basis of theoretical analysis and measurement on site, the temperature gradients and its variation

Keywords： temperature     transfer     correlation     radiation     variation    

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Assessment of liver volume variation to evaluate liver function

Cong Tong, Xinsen Xu, Chang Liu, Tianzheng Zhang, Kai Qu

Frontiers of Medicine 2012, Volume 6, Issue 4,   Pages 421-427 doi: 10.1007/s11684-012-0223-5

Abstract:

In order to assess the value of liver volumetry in cirrhosis and acute liver failure (ALF) patients, we explored the correlation between hepatic volume and severity of the hepatic diseases. The clinical data of 48 cirrhosis patients with 60 normal controls and 39 ALF patients were collected. Computed tomography-derived liver volume (CTLV) and body surface area (BSA) of normal controls were calculated to get a regression formula for standard liver volume (SLV) and BSA. Then CTLV and SLV of all patients were calculated and grouped by Child-Turcotte-Pugh classification for cirrhosis patients and assigned according to prognosis of ALF patients for further comparison. It turned out that the mean liver volume of the control group was 1 058±337 cm3. SLV was correlated with BSA according to the regression formula. The hepatic volume of cirrhosis patients in Child A, B level was not reduced, but in Child C level it was significantly reduced with the lowest liver volume index (CTLV/SLV). Likewise, in the death group of ALF patients, the volume index was significantly lower than that of the survival group. Based on volumetric study, we proposed an ROC (receiver operating characteristic) analysis to predict the prognosis of ALF patients that CTLV/SLV<83.9% indicates a poor prognosis. In conclusion, the CTLV/SLV ratio, which reflects liver volume variations, correlates well with the liver function and progression of cirrhosis and ALF. It is also a very useful marker for predicting the prognosis of ALF.

Keywords： liver volume variation     cirrhosis     acute liver failure (ALF)    

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Investigation on the N∶P ratio varying under the blue-green alga seasonal blooming in north area of

He Feng,Duan Changqun,Du Jinsong,Han Yaping,Guo Yanying,Pan Min,Song renbin

Strategic Study of CAE 2010, Volume 12, Issue 6,   Pages 94-98

Abstract:

For several reasons, the north area of the Dianchi Lake is prolific of blue-green alga. In this paper, the dynamic biomass of alga was investigated. Both of the concentrations of N and P in original water and in filtered water were also be monitored. The aim of the study is to figure out the alga's influence on the concentrations of N and P in the water, and to analyze the relationship between them by using the method of ecological stoichiometry. It is disclosed that from April to November is the main stage of alga blooming. Especially, alga blooms seriously and is uncontrolled from May to September. By data analysis, we find that the concentrations of N and P vary conforming to the dynamic of the biomass of alga, and there is positive correlation-ship between them. The correlation coefficient between the concentrations of N in water and alga's biomass is 0.955, between the concentrations of P in water and alga's biomass is 0.952. By taken the method of stoichiometry analysis, we find both the N∶P ratios of alga and water are not constant, and both of them have no significant ecological stoichiometry of the N∶P ratio. We also made correlation-ship analysis between the N∶P ratio of water and biomass of alga. The correlation-ship between them is 0.308, which illustrats that the biomass of alga is not related to the N∶P ratio of water. Thus we can declare that there is only one most efficient way to control blue-green alga booming, to reduce the concentration of N and P in water of eutrophic lakes.

Keywords： the Dianchi Lake     blue-green alga     the N∶P ratio     variation     ecological stoichiometry    

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arsenic trioxide on proliferation and apoptosis of U266 cells and its relationship with the expression variation

ZHAN Rong, YU Qinghong, HUANG Haobo

Frontiers of Medicine 2008, Volume 2, Issue 4,   Pages 356-360 doi: 10.1007/s11684-008-0068-0

Abstract: the proliferation and apoptosis of myeloma cell line U266 and its relationship with the expression variation

Keywords： VEGF expression     expression variation     culture supernatant     labeling     concentration    

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Temporal variation of heavy metal pollution in urban stormwater runoff

Wen LI, Zhenyao SHEN, Tian TIAN, Ruimin LIU, Jiali QIU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 692-700 doi: 10.1007/s11783-012-0444-5

Abstract: surface) had significant effects on the strengths of the first flush effects, accounting for 72.9% of the variation

Keywords： urban stormwater     heavy metal pollution     temporal variation     event mean concentration     first flush effect    

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RESPONSE OF WHEAT COMPOSITE CROSS POPULATIONS TO DISEASE AND CLIMATE VARIATION OVER 13 GENERATIONS

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 3,   Pages 400-415 doi: 10.15302/J-FASE-2021394

Abstract:

Since the F5 (2005), three winter wheat composite cross populations (CCPs) based on germplasm specifically suitable for low-input conditions were subjected to natural selection under organic and conventional management. In the F6, each CCP was divided into two parallel populations (12 CCPs in total) and maintained continuously until 2018. Commonly used modern cultivars with different disease susceptibilities were grown alongside to assess the agronomic performance of the CCPs. The organically managed CCPs were comparable in yield and foliar disease resistance to two continuously used reference cultivars, Achat and Capo. In contrast, under conventional management the cv. Capo outyielded the CCPs (Achat was not tested), highlighting the importance of parental cultivar choice for specific management systems. The CCPs were found to be moderately resistant to brown rust and even to the newly emerged stripe rust races prevalent in Europe since 2011. Differences between the CCPs were mainly due to parental genetic background and were significant in the first five generations, but were no longer so in the last five generations. In addition, these differences tended to vary depending on the experimental year and the environmental stresses present. In conclusion, the CCPs despite being derived from older cultivars are able to compete with more recently released reference cultivars under organic farming practices and represent a dynamic germplasm resource.

 

Keywords： evolutionary breeding     heterogeneous crop population     management system    

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Spatial and seasonal variations in bacterial communities of the Yellow Sea by T-RFLP analysis

Hongyuan WANG, Xiaolu JIANG, Ya HE, Huashi GUAN

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 2,   Pages 194-199 doi: 10.1007/s11783-009-0018-3

Abstract: mud flat shore, and artificial harbor) at the Yellow Sea were chosen to investigate the spatial and seasonalThe MDA analysis results of T-RFLP profiles coming from I and I both exhibited a significant seasonalcommunity shift for bacteria and a relatively low spatial variation among the four locations.

Keywords： terminal restriction fragment length polymorphism (T-RFLP)     bacterial community structure     marine microbial diversity     HhaI     MspI    

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Erratum to: Meter-scale variation within a single transect demands attention to taxon accumulation curves

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-022-1560-5

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Short-term effect of temperature variation on the competition between PAOs and GAOs during acclimation

Nanqi REN, Han KANG, Xiuheng WANG, Nan LI

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 277-282 doi: 10.1007/s11783-010-0226-x

Abstract: During the 34 days operation, SBR was set with temperature variation(0–5 d, 22±1°C; 6–13 d, 29±1°C; 14Under sudden and substantially temperature variation, from 22±1°C to 29±1°C and then to 14±1°C, the domination

Keywords： fluorescent in situ hybridization (FISH)     tetrad forming organisms (TFOs)     temperature variation     enhanced    

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Multi-stage dual replica bit-line delay technique for process-variation-robust timing of lowvoltageSRAMsense

Shou-biao TAN,Wen-juan LU,Chun-yu PENG,Zheng-ping LI,You-wu TAO,Jun-ning CHEN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 8,   Pages 700-706 doi: 10.1631/FITEE.1400439

Abstract: technique is proposed for reducing access time by suppressing the sense-amplifier enable (SAE) timing variationCompared with the traditional technique, this strategy, using statistical theory, reduces the timing variation

Keywords： Process-variation-robust     Sense amplifier (SA)     Replica bit-line (RBL) delay     Timing variation    

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Title Author Date Type Operation

Seasonal variation of nitrogen and phosphorus in Xiaojiang River—A tributary of the Three Gorges Reservoir

Zhe LI , Jinsong GUO , Man LONG , Fang FANG , Jinping SHENG , Hong ZHOU ,

Journal Article

Nitrogen pollution and source identification of urban ecosystem surface water in Beijing

Yufen REN, Zhiwei XU, Xinyu ZHANG, Xiaoke WANG, Xiaomin SUN, D. J. BALLANTINE, Shengzhong WANG

Journal Article

Optimization for operating modes based on simulation of seasonal underground thermal energy storage

ZHAO Jun, CHEN Yan, LI Xinguo

Journal Article

Numerical simulation of underground seasonal cold energy storage for a 10 MW solar thermal power plant

Zulkarnain ABBAS, Yong LI, Ruzhu WANG

Journal Article

Seasonal and treatment-process variations in invertebrates in drinking water treatment plants

Zhiling Wu, Xianchun Tang, Hongbin Chen

Journal Article

Temperature variation of concrete box girder bridge

Jian WANG, Zhi FANG,

Journal Article

Assessment of liver volume variation to evaluate liver function

Cong Tong, Xinsen Xu, Chang Liu, Tianzheng Zhang, Kai Qu

Journal Article

Investigation on the N∶P ratio varying under the blue-green alga seasonal blooming in north area of

He Feng,Duan Changqun,Du Jinsong,Han Yaping,Guo Yanying,Pan Min,Song renbin

Journal Article

arsenic trioxide on proliferation and apoptosis of U266 cells and its relationship with the expression variation

ZHAN Rong, YU Qinghong, HUANG Haobo

Journal Article

Temporal variation of heavy metal pollution in urban stormwater runoff

Wen LI, Zhenyao SHEN, Tian TIAN, Ruimin LIU, Jiali QIU

Journal Article

RESPONSE OF WHEAT COMPOSITE CROSS POPULATIONS TO DISEASE AND CLIMATE VARIATION OVER 13 GENERATIONS

Journal Article

Spatial and seasonal variations in bacterial communities of the Yellow Sea by T-RFLP analysis

Hongyuan WANG, Xiaolu JIANG, Ya HE, Huashi GUAN

Journal Article

Erratum to: Meter-scale variation within a single transect demands attention to taxon accumulation curves

Journal Article

Short-term effect of temperature variation on the competition between PAOs and GAOs during acclimation

Nanqi REN, Han KANG, Xiuheng WANG, Nan LI

Journal Article

Multi-stage dual replica bit-line delay technique for process-variation-robust timing of lowvoltageSRAMsense

Shou-biao TAN,Wen-juan LU,Chun-yu PENG,Zheng-ping LI,You-wu TAO,Jun-ning CHEN

Journal Article