维普中文期刊产品整合服务
86篇 您的检索式:作者名="WANG QUNHUI"
    题名 作者 年代 出处 被引量
1Advanced treatment of wet-spun acrylic fiber manufacturing wastewater using three-dimensional electrochemical oxidation显示文摘A three-dimensional electrochemical oxidation(3D-EC) reactor with introduction of activated carbon(AC) as particle micro-electrodes was applied for the advanced treatment of secondary wastewater effluent of a wet-spun acrylic fiber manufacturing plant. Under the optimized conditions(current density of 500 A/m^2, circulation rate of 5 mL/min, AC dosage of 50 g, and chloride concentration of 1.0 g/L), the average removal efficiencies of chemical oxygen demand(COD_(cr)), NH3–N, total organic carbon(TOC), and ultraviolet absorption at 254 nm(UV_(254)) of the 3D-EC reactor were 64.5%, 60.8%, 46.4%, and 64.8%, respectively; while the corresponding effluent concentrations of COD_(cr), NH_3–N, TOC, and UV_(254) were 76.6, 20.1, and42.5 mg/L, and 0.08 Abs/cm, respectively. The effluent concentration of COD_(cr) was less than 100 mg/L, which showed that the treated wastewater satisfied the demand of the integrated wastewater discharge standard(GB 8978-1996). The 3D-EC process remarkably improved the treatment efficiencies with synergistic effects for COD_(cr), NH_3–N, TOC, and UV_(254) during the stable stage of 44.5%, 38.8%, 27.2%, and 10.9%, respectively, as compared with the sum of the efficiencies of a two-dimensional electrochemical oxidation(2D-EC) reactor and an AC adsorption process, which was ascribed to the numerous micro-electrodes of AC in the 3D-EC reactor. Gas chromatography mass spectrometry(GC–MS) analysis revealed that electrochemical treatment did not generate more toxic organics, and it was proved that the increase in acute biotoxicity was caused primarily by the production of free chlorine.Tianlong Zheng, Qunhui Wang Zhining Shi Yue Fang Shanshan Shi Juan Wang Chuanfu Wu 2016Journal of Environmental Sciences2016,28,12:8
2The evidence for the existence of methane seepages in the northern South China Sea:abnormal high methane concentrations in bottom waters显示文摘The methane concentration of water samples at five stations collected by the CTD rosette water sampler in the areas of southwest Dongsha Islands and the Xisha Trough was analyzed by the gas-stripping method on aboard ship. It shows abnormal high methane concentrations in near bottom water samples at three stations. In the southwest Dongsha Islands area, the methane concentration of 4.25 and 10.64 nmol/dm3 occurs in near bottom water samples at Stas E105A and E106, respectively. In the Xisha Trough area, the high methane concentrations of 5.17, 8.48 and 8.70 nmol/dm3 in water depths of 1 750, 1 900 and 2 050 m, respectively, have been observed at Sta. E413. It is believed that the abnormal high methane concentrations are generated from the leakage of methane from sediments. Combining with previous geophysical and geochemical data from these two areas, this was probably related to the submarine gas hydrates decomposition and cold seep system. In May 2007, gas hydrate samples were successfully obtained by the drilling in the Shenhu Sea area located in the southwest Dongsha Islands area. It is called for further drilling surveys to confirm the existence of gas hydrate and cold seep system in the Xisha Trough as early as possible.YIN Xijie ZHOU Huaiyang YANG Qunhui WANG Hu CHEN Jian 2008Acta Oceanologica Sinica2008,27,6:7
3Molecular Cytogenetic Characterization of a Wheat-Leymus mollis 3D(3Ns) Substitution Line with Resistance to Leaf Rust显示文摘Leymus mollis(Trin.)Pilger(NsNsXmXm,2n?28),a wild relative of common wheat,possesses many potentially valuable traits that could be transferred to common wheat during breeding programs.In this study,the karyotypic constitution of a wheat e L.mollis 3D(3Ns#1)disomic substitution line isolated from the F5progeny of octoploid Tritileymus M842-16 Triticum durum cv.D4286,which was designated as 10DM57,was determined using genomic in situ hybridization(GISH),fluorescent in situ hybridization(FISH),SSR markers,and ESTSTS markers.Screening of mitosis and meiosis showed that 10DM57 had a chromosome karyotype of 2n?42?21II.GISH indicated that10DM57 was a line with 40 chromosomes from wheat and two of the Ns chromosomes from L.mollis,which formed a ring bivalent in pollen mother cells at metaphase I.FISH analysis showed that the chromosome 3D may be replaced by 3Ns#1 in 10DM57.DNA markers,including SSR and EST-STS primers,showed that the pair of wheat chromosome 3D in 10DM57 was substituted by the pair of chromosome 3Ns#1from L.mollis.Evaluation of the agronomic traits showed that,compared with its common wheat relative 7182,10DM57 was resistant to leaf rust while the spike length and number of spikes per plant were improved significantly,which correlated with a higher wheat yield.The new germplasm,10DM57,could be exploited as an intermediate material in wheat genetic and breeding programs.Yuhui Pang Xinhong Chen Jixin Zhao Wanli Du Xueni Cheng Jun Wu Yanli Li Liangming Wang Jing Wang Qunhui Yang 2014Journal of Genetics and Genomics2014,41,4:6
4Denitrification in Qi'ao Island coastal zone,the Zhujiang Estuary in China显示文摘Samples of sediments and the overlying water were collected in the Qi'ao Island coastal zone,the Zhujiang(Pearl River) Estuary(ZE).Denitrification rates,sediment oxygen demand(SOD),and fluxes of inorganic nitrogen compounds were investigated with N2 flux method,using a self-designed continuous flow through and auto-sampling system.The results indicate that the denitrification rates varied between 222 and 908 μmol/(m2·h) with an average of 499 μmol /(m2·h).During incubation,the sediments absorbed dissolved oxygen in the overlying water with SOD ranging from 300 to 2 363 μmol/(m2·h).The denitrification rates were highly correlated with the SOD(r2=0.77) regardless of the NO-3+NO-2 concentrations in the overlying water,organic carbon contents in sediments and water temperature,suggesting that the SOD was probably the main environmental factor controlling the denitrification in the Qi'ao Island coastal zone.There was a net flux of NO-3+NO-2 into the sediments from the overlying water.The NH+4 flux from sediments into water as the result of mineralization was between 12.3 and 210.3 μmol/(m2·h),which seems limited by both organic carbon content in sediment and dissolved oxygen concentration in the overlying water.WANG Hu ZHOU Huaiyang PENG Xiaotong YANG Qunhui QIN Chaomei YIN Xijie CHEN Guangqian 2009Acta Oceanologica Sinica2009,28,1:4
5Growth model of a hydrothermal low-temperature Si-rich chimney:Example from the CDE hydrothermal field,Lau Basin显示文摘The CDE hydrothermal field was first discovered during a Chinese cruise to the East Lau Basin Spreading Centre in 2007.Apart from significant amounts of loose Fe-Si-Mn(oxyhydr) oxide(referred to as oxide below) precipitates,a small Si-rich oxide chimney was also recovered on this cruise.In this study,we report on the mineralogical and geochemical analyses of this chimney and a model for its growth that has been developed.Based on the mineralogy and O isotope results,the chimney walls can be divided into four growth generations(layers) from the inner to the outer layers:amorphous opal and barite layer(precipitation temperature 68.5°C based on oxygen isotope determinations),a rod-like amorphous layer(precipitation temperature 39.6°C),a filamentous Fe-Si oxide layer,and an outer Fe-Mn oxide layer.Investigations based on SEM and EDS showed that neutrophilic Fe-oxidizing bacteria play an important role in the formation of this chimney,particularly in the outer two generations.In the first stage,the metabolic activity of the microbes results in the pervasive precipitation of the filamentous Fe-rich oxides inside a ring formed by some amorphous opal and barite;therefore,a loose porous layer forms.In the second stage,amorphous opal then precipitates inside this wall as a result of conductive cooling and gradually controls the mixing between the hydrothermal fluids and ambient seawaters.In the third stage,barite and some amorphous opal form from the higher temperature fluids at the summit of the chimney growth history.In the last stage,the chimney wall becomes thicker and denser and the exchange of hydrothermal fluids and seawater ceases.As a result,a Fe-Mn oxide layer precipitates onto the outer surface of the chimney wall as neutrophilic Fe-oxidizing bacteria reoccupy the surface of the chimney.This mineral sequence and the resultant growth generations are confirmed by the chemical characteristics of the chimney wall.Sr isotopes extracted from the Fe oxides of the four-generation wall generally show a decreasing trend of the 87 Sr/86 Sr ratios from the second layer to the inner layer(from 0.707008 to 0.705877) except for the outer layer(0.706502).The Sr isotope and chondrite normalized REE patterns of the corresponding bulk samples from the chimney wall also display a similar trend.Our study shows that the biogenic filament network plays a key role in the formation of the chimney in contrast to previous growth models of higher temperature chimneys,which often ignore the influence of biogenic factors.SUN ZhiLei ZHOU HuaiYang YANG QunHui YIN XiJie WANG Hu YAO HuiQiang DONG CongFang 2012Science China Earth Sciences2012,55,10:4
6Effect of micro-bubbles on coagulation flotation process of dyeing wastewater显示文摘Shu Liu Qunhui Wang Hongzhi Ma Peikun Huang Jun Li Takashige Kikuchi 2010Separation and Purification Technology2010,,3:3
7Effect of micro-bubbles on coagulation flotation process of dyeing wastewater显示文摘Shu Liu Qunhui Wang Hongzhi Ma Peikun Huang Jun Li Takashige Kikuchi 2010Separation and Purification Technology2010,,3:3
8Pollution characteristics of polycyclic aromatic hydrocarbons in common used mineral oils and their transformation during oil regeneration显示文摘The pollution characteristic of polycyclic aromatic hydrocarbons(PAHs) in common used mineral oils, semi-refined oils, refined oils and solid wastes produced during the used mineral oil regeneration process was analyzed. The results showed that total PAHs content in six common used mineral oils was as follows: used engine oil > used quenching oil > used casting oil > used hydraulic oil > used antirust oil > used industrial lubricating oil. Furthermore, this order was dependent on the source of PAHs and oil working temperatures. Additionally, total PAHs content in regenerated oils was as follows: semi-refined oil > refined oil > crude oil, which was related to the catalytic cracking process of crude oil and adsorption refining process of semi-refined oil. The ranking of total PAHs content in regenerated wastes varied depending on the regeneration technology used as follows: waste adsorption sand > acid sludge > waste clay > precipitation sludge > cracked residue. In all types of used mineral oils and regenerated wastes, the maximum and minimum proportions of the total PAHs content were composed of 2–3 ring-PAHs and 5–6 ring-PAHs, respectively. The majority of PAHs in the used mineral oils entered into regenerated wastes during regeneration process, while a small number remained in the regenerated oil.Xiaohui Wu Bo Yue Yi Su Qi Wan Qifei Huang Qunhui Wang Hongying Cai 2017Journal of Environmental Sciences2017,29,6:3
9Patterns and dietary intake of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in food products in China显示文摘The health risk of polychlorinated dibenzo-p-dioxins and dibenzofurans(PCDD/Fs) and dioxin-like PCBs(d1-PCBs) to human being should be assessed regularly.To evaluate the contamination levels in various food products in the Chinese market and to assess the dietary exposure of the Chinese population,11 varieties of food groups totaling 534 samples including beef and mutton,chicken and duck,pork,fish and seafood,milk and dairy products were evaluated.The average concentrations of PCDD/Fs in all groups ranged from0.291 to 8.458 pg/g whole weight(w.w.).The average toxic equivalency concentrations were from 0.012 pg TEQ/g w.w.for cereal to 0.357 pg TEQ/g fat for marine oil.OCDD and2,3,7,8-TCDF were the dominant congeners in foodstuffs.The dietary estimated mean intake for the Chinese rural and urban populations were 0.555 and 0.514 pg TEQ/kg body weight/day,respectively,however,the cereal group exposure were higher to the estimate daily intake and contributed 81%for rural and 48%for urban population,followed by fish and seafood which contributed 4%and 15%to the estimate daily intake.The estimated dietary intakes were compared with the toxicological reference values and showed that both rural and urban populations were well below those values.Lingyun Wang Gangdou Ding Zhiguang Zhou Xun Liu Yixiao Wang Heidi Qunhui Xie Tuan Xu Pu Wang Bin Zhao 2017Journal of Environmental Sciences2017,29,1:3
10Sludge reduction during brewery wastewater treatment by hydrolyzation-food chain reactor system显示文摘During brewery wastewater treatment by a hydrolyzation-food chain reactor(FCR)system,sludge was recycled to the anaerobic segment.With the function of hydrolyzation acidification in the anaerobic segment and the processes of aerobic oxidation and antagonism,preda-tion,interaction and symbiosis among microbes in multi-level oxidation segment,residual sludge could be reduced effectively.The 6-month dynamic experiments show that the average chemical oxygen demand(COD)removal ratio was 92.6% and average sludge production of the aerobic segment was 8.14%,with the COD of the influent at 960–1720 mg/L and hydraulic retention time(HRT)of 12 h.Since the producedsludge could be recycled and hydrolyzed in the anaerobic segment,no excess sludge was produced during the steady running for this system.Lijie LI Qunhui WANG Xuesong LI Shuo YANG 2008Frontiers of Environmental Science & Engineering2008,2,1:3
11Pilot-scale experiments on multilevel contact oxidation treatment of poultry farm wastewater using saran lock carriers under different operation model显示文摘A pilot-scale multilevel contact oxidation reactors system, coupled with saran lock carriers,was applied for the treatment of poultry farm wastewater. The removal efficiencies of CODcr, ammonia, and the total nitrogen as well as the elimination performance of CODcr and total nitrogen along the three-level contact oxidation tanks under six designed operational models were investigated. Based on the performance of the nitrogen removal of the saran lock carriers and the distribution of anoxic–aerobic interspace under the suitable operation model, the mechanism of nitrogen removal of the system was also explored. The results revealed that the intermittent aeration under parallel model is the most suitable operation model, while the removal efficiencies of CODcr, ammonia, and the total nitrogen were 86.86%, 84.04%, and 80.96%, respectively. The effluent concentration of CODcr,ammonia, and the total nitrogen were 55.6 mg/L, 8.3 mg/L, and 12.0 mg/L, which satisfy both the discharge standard of pollutants for livestock and poultry breeding industry(GB18596–2001) and the first grade of the integrated wastewater discharge standard(GB 8978–1996). Moreover, the mechanism for the nitrogen removal should be attributed to the plenty of anoxic–aerobic interspaces of the biofilm and the three-dimensional spiral structure of the saran lock carriers, where the oxygen-deficient distribution was suitable for the happening of the simultaneous nitrification and denitrification process. Therefore, the multilevel contact oxidation tanks system is an effective pathway for the treatment of the poultry farm wastewater on the strength of a suitable operation model and novel carriers.Tianlong Zheng Peng Li Xiaoyu Ma Xiaohong Sun Chuanfu Wu Qunhui Wang Ming Gao 2019Journal of Environmental Sciences2019,31,3:2
12Antibiotic resistance gene abundances associated with antibiotics and heavy metals in animal manures and agricultural soils adjacent to feedlots in Shanghai; China显示文摘Xiuling Ji Qunhui Shen Fang Liu Jing Ma Gang Xu Yuanlong Wang Minghong Wu 2012Journal of Hazardous Materials2012,,:2
13Investigation of therapeutic modalities of G719X, an uncommon mutation in the EGFR gene in non-small cell lung cancer显示文摘Objective G719 X is the most frequently seen uncommon mutation of the epidermal growth factor receptor(EGFR) gene, which is a point mutation at exon 18 with three common subtypes, G719 A/G719 C/G719 S. This study explored the clinicopathological characteristics of the G719 X mutation and investigated the efficacy of EGFR-tyrosine kinase inhibitor(TKI) treatment and chemotherapy in patients with the G719 X mutation; the survival rate after these different treatment modalities were then analyzed in order to provide evidence for clinical treatment.Methods Clinical data of 41 patients with the G719 X mutation admitted in the Beijing Chest Hospital, Capital Medical University from September 2014 to July 2018, were collected and the EGFR mutations were detected by amplification refractory mutation system-polymerase chain reaction(ARMS-PCR). The clinicopathological characteristics of the G719 X mutation were analyzed, and the relationship among the G719 X mutation, the efficacy of different treatment modalities, and the progression-free survival(PFS) was analyzed. Results Of the 41 cases, 24(58.5%) were G719 X single mutations and 17(41.5%) were compound mutations, including G719 X/S768 I, G719 X/L861 Q, G719 X/19 del, and G719 X/c-Met compound mutation. The objective response rate(ORR) of first-line EGFR-TKI therapy was 50%(6/12), the disease control rate(DCR) was 83.3%(10/12), and the median PFS(mPFS) was 9 months. After resistance to EGFR-TKI in the previous treatment, the ORR(71.4%, 5/7) and DCR(100%, 7/7) were still high following EGFR-TKIs, by an mPFS of 8 months. The ORR of chemotherapy was 33.3%(2/6), the DCR was 100%(6/6), and the mPFS was 6 months. Conclusion G719 X is an uncommon mutation of the EGFR gene and is sensitive to many EGFR-TKIs. It can be treated with the second-or third-generation EGFR-TKIs after resistance to the first-generation EGFR-TKIs. G719 X mutation also showed favorable effect to chemotherapy.Hua Zheng Yuan Gao Zan Liu Zhe Qian Tongmei Zhang Jie Li Hongmei Zhang Qunhui Wang Fanbin Hu Baolan Li 2019Oncology and Translational Medicine2019,5,2:1
14Enzymatic hydrolysis of pretreated soybean straw显示文摘XU Zhong WANG Qunhui 2007Biomass and Bioenergy2007,31,23:1
15Improved Pretreatment (Coagulation-Floatation and Ozonation) of Younger Landfill Leachate by Microbubbles显示文摘Liu Shu Wang Qunhui Zhai Xuedong Huang Qifei Huang Peikun 2010Water Environment Research2010,,7:1
16Isolation, identification of sludge-lysing strain and its utilization in thermophilic aerobic digestion for waste activated sludge显示文摘LI XUESONG MA HONGZHI WANG QUNHUI 2009Bioresource Technology2009,100,:1
17Occurrence and degration characteristics of Dibutylphthalate(DBP)and di-(2-ethylhexyl)phthalate(DEHP)in typical agricultural soil of China显示文摘Gang Xu Fasheng Li Qunhui Wang 2008Science of the total environment2008,,393:1
18Effect of micro-bubbleson Coagulation flotation process of dyeing wastewater显示文摘Liu Shu Wang Qunhui Ma Hongzhi 2010Separationand Purification Technology2010,71,:1
19Study on Advanced Treatment of Secondary Effluent Using Fixed-Bed Filled with Bone Char显示文摘Weimin Xie Qunhui Wang Jie Yao Hongzhi Ma Yukihide Ohsumi Hiroaki I. Ogawa 2004Water Air and Soil Pollution2004,,1:1
20Preparation and characterization of fluorinated poly(aryl ether oxadiazole)s anion exchange membranes based on imidazolium salts显示文摘Qunhui Hu Yuming Shang Yaowu Wang Min Xu Shubo Wang Xiaofeng Xie Yonggang Liu Hailiang Zhang Jinhai Wang Zongqiang Mao 2012International Journal of Hydrogen Energy2012,,17:1
返回顶部 每页显示:
共5页 首页 上一页 第1页 下一页 末页 /5 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费