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| 1 | Dynamic trends and driving forces of land use intensification of cultivated land in China显示文摘这研究的目的是证实代表土地的几个重要因素在栽培土地使用增强(由 CII 表示了) ,使用一条多维的途径在中国完成现实主义、实际的栽培陆地使用政策。为这个原因,理论框架首先被造解释土地的变化在栽培陆地使用增强,然后变量和索引进一步为在省的水平在栽培陆地描绘陆地使用增强的动态趋势和驱动力的目的被开发。学习结果显示 CII 的程度显著地在 1996 ~ 2008 的时期期间增加了,增加了劳动和大写的输入,并且加强了陆地使用,由于化肥,机械和杀虫剂的广泛的使用。而且,主要部件回归结果证明栽培土地,栽培土地的经济好处,劳动生产率,和土地的生产率使用变换是影响村庄发展的主要因素。开始的三个因素起一个积极作用,当最后一个在栽培陆地在陆地使用增强上有否定效果时。根据这些结果,为在栽培土地的持续增强的主要政策被建议。首先,为增强的持续小径应该被采用减少化肥的 unsustainable 使用,农业化学药品,等等。第二,为农业生产的条件应该进一步被改进增加栽培陆地生产率。第三,它为从观点改进劳动生产率和陆地使用效率很必要、有用加速了栽培陆地发行量。最后步是断然借助于改革津贴标准影响农民的生产活动。 | WANG Guogang LIU Yansui LI Yurui CHEN Yangfen | 2015 | Journal of Geographical Sciences2015，25，1： | 23 |
| 2 | Spatial distribution, seasonal variation and regionalization of PM_(2.5) concentrations in China显示文摘In order to provide scientific support to policy makers in the regulation of PM2.5 pollution in China, it is important to accurately assess the current status, spatiotemporal characteristics and regionalization data for this air pollutant. An analysis of the pollution status of PM2.5 was conducted using daily averaged mass concentration data recorded in 74 cities in 2013 and 161 cities in 2014. The rotated empirical orthogonal function(REOF) method was applied to analyze this data. Results showed that the average annual PM2.5 concentration in urban areas of China is 62.2±21.5 ?g/m3, and that the distribution is spatially heterogeneous. The North China Plain, middle and lower Yangtze River Plain, Sichuan Basin and Guanzhong Plain had relatively high annual PM2.5 concentrations compared with the southeast coastal region, the Tibetan Plateau and the Yungui Plateau. PM2.5 mass concentrations tended to be higher in winter than in summer, however, the data for many cities showed a small peak in concentrations from May to July. An analysis of the spatial correlation of PM2.5 indicated a significant influence of topographic conditions. A lower correlation was observed where terrain features varied greatly. Based on the results of the REOF analysis and topographic characteristics, ten regions were identified in mid-eastern China, which could be considered as basic pollution prevention divisions for PM2.5; these include the North China Plain region, Pearl River Delta region, Jianghuai Plain region, middle Yangtze River Plain region, Northeast Plain region, Jiangnan coastal region, Sichuan Basin region, Qiantao Plain region, Guanzhong-Central Plain region and Yungui Plateau region. Seasonal variations in the regionalization data were observed, especially for the North China Plain and Pearl River Delta regions. Among the ten regions identified in this study, the North China Plain, Guanzhong-Central Plain, middle Yangtze River Plain and Jianghuai Plain had relatively high PM2.5 mass concentrations in comparison with the others. Therefore, these regions should be considered as the key regions to target in developing PM2.5 pollution prevention strategies. This study improves the present understanding of the spatial distribution, seasonal changes and regional status of PM2.5 pollution in China and helps establish possible control strategies for the reduction of this air pollutant. | Shuai Wang Guogang Li Zhengyu Gong Li Du Qingtao Zhou Xiaoyan Meng Shuyan Xie Lei Zhou | 2015 | Science China Chemistry2015，58，9： | 12 |
| 3 | New strategy for designing orangish-redemitting phosphor via oxygen-vacancyinduced electronic localization显示文摘Phosphor-converted white-light-emitting diodes(pc-WLED)have been extensively employed as solid-state lighting sources,which have a very important role in people’s daily lives.However,due to the scarcity of the red component,it is difficult to realize warm white light efficiently.Hence,red-emitting phosphors are urgently required for improving the illumination quality.In this work,we develop a novel orangish-red La_(4)GeO_(8):Bi^(3+) phosphor,the emission peak of which is located at 600 nm under near-ultraviolet(n-UV)light excitation.The full width at half maximum(fwhm)is 103 nm,the internal quantum efficiency(IQE)exceeds 88%,and the external quantum efficiency(EQE)is 69%.According to Rietveld refinement analysis and density functional theory(DFT)calculations,Bi^(3+) ions randomly occupy all La sites in orthorhombic La_(4)GeO_(8).Importantly,the oxygen-vacancy-induced electronic localization around the Bi3+ions is the main reason for the highly efficient orangish-red luminescence.These results provide a new perspective and insight from the local electron structure for designing inorganic phosphor materials that realize the unique luminescence performance of Bi^(3+) ions. | Yi Wei Gongcheng Xing Kang Liu Guogang Li Peipei Dang Sisi Liang Min Liu Ziyong Cheng Dayong Jin Jun Lin | 2019 | Light(Science & Applications)2019，8，1： | 12 |
| 4 | Antibacterial Performance of a Cu-bearing Stainless Steel against Microorganisms in Tap Water显示文摘Tap water is one of the most commonly used water resources in our daily life. However, the increasing water contamination and the health risk caused by pathogenic bacteria, such as Staphylococcus aureus and Escherichia coli have attracted more attention. The mutualism of different pathogenic bacteria may diminish antibacterial effect of antibacterial agents. It was found that materials used for making pipe and tap played one of the most important roles in promoting bacterial growth. This paper is to report the performance of an innovative type 304 Cu-bearing stainless steel(304Cu SS) against microbes in tap water. The investigation methodologies involved were means of heterotrophic plate count, contact angle measurements, scanning electron microscopy for observing the cell and subtract surface morphology,atomic absorption spectrometry for copper ions release study, and confocal laser scanning microscopy used for examining live/dead bacteria on normal 304 stainless steel and 304 Cu SS. It was found that the surface free energy varied after being immersed in tap water with polar component and Cu ions release.The results showed 304 Cu SS could effectively kill most of the planktonic bacteria(max 95.9% antibacterial rate), and consequently inhibit bacterial biofilms formation on the surface, contributing to the reduction of pathogenic risk to the surrounding environments. | Mingjun Li Li Nan Dake Xu Guogang Ren Ke Yang | 2015 | Journal of Materials Science & Technology2015，31，3： | 10 |
| 5 | Influencing factors of water resources in the source region of the Yellow River显示文摘Taking the source region of the Yellow River as a study area and based on the data from Madoi Meteorological Station and Huangheyan Hydrological Station covering the period 1955–2005, this paper analyses the changing trends of surface water resources, climate and frozen ground and reveals their causes. Results show that there exist frequent fluctuations from high to low water flow in the 51-year period. In general, the discharge has shown a de- clining trend in the 51 years especially since the 1990s. The annual distribution shows one peak which, year on year is getting smaller. (1) Precipitation has a significant and sustained influence on discharge. (2) A sharp rise of temperature resulted in the increase of evaporation and the decrease of discharge, which has a greater effect than on ice-snow melting. (3) Frozen ground tends to be degraded markedly. There is a significant positive correlation be- tween the permafrost thickness and the discharge. (4) Evaporation rates are significantly increasing, leading to the decrease of discharge. 70% of the discharge reduction resulted from climate change, and the remaining 30% may have been caused by human activities. | CHANG Guogang LI Lin ZHU Xide WANG Zhenyu XIAO Jianshe LI Fengxia | 2007 | Journal of Geographical Sciences2007，17，2： | 7 |
| 6 | Thermally stable and highly efficient red-emitting Eu^(3+)-doped Cs3GdGe309 phosphors for WLEDs:non-concentration quenching and negative thermal expansion显示文摘Red phosphor materials play a key role in improving the lighting and backlit display quality of phosphor-converted white light-emitting diodes(pc-WLEDs).However,the development of a red phosphor with simultaneous high efficiency,excellent thermal stability and high colour purity is still a challenge.In this work,unique non-concentration quenching in solid-solution Cs_(3)Gd_(1-x)Ge_(3)O_(9):xEu^(3+)(CGGO:xEu^(3+))(x=0.1-1.0)phosphors is successfully developed to achieve a highly efficient red-emitting Cs_(3)EuGe_(3)0_(9)(CEGO)phosphor.Under the optimal 464 nm blue light excitation,CEGO shows a strong red emission at 611 nm with a high colour purity of 95.07%and a high internal quantum efficiency of 94%.Impressively,this red-emitting CEGO phosphor exhibits a better thermal stability at higher temperatures(175-250℃,>90%)than typical red K2SiF6:Mn^(4+)and Y203:Eu^(3+)phosphors,and has a remarkable volumetric negative thermal expansion(coefficient of thermal expansion,a=—5.06×10^(-5)/℃,25-250℃).By employing this red CEGO phosphor,a fabricated pc-WLED emits warm white light with colour coordinates(0.364,0.383),a high colour rendering index(CRI=89.7),and a low colour coordinate temperature(CCT=4508 K).These results indicate that this highly efficient red-emitting phosphor has great potential as a red component for pc-WLEDs,opening a new perspective for developing new phosphor materials. | Peipei Dang Guogang Li Xiaohan Yun Qianqian Zhang Dongjie Liu Hongzhou Lian Mengmeng Shang Jun Lin | 2021 | Light(Science & Applications)2021，10，2： | 6 |
| 7 | Effect of direct current pulse stimulating acupoints of JiaJi (T10-L3) and Ciliao (BL 32) with Han's Acupoint Nerve Stimulator on labour pain in women: a randomized controlled clinical study显示文摘OBJECTIVE: To assess the clinical effect and safety of direct current(DC) pulse produced by Han's Acupoint Nerve Stimulator in reduction(HANS) of labor pain.METHODS: Totally 120 participants were enrolled in this clinical trial, and were randomly divided into4 groups including: HANS group, patient controlled intravenous analgesia(PCIA) group, patient-controlled epidural analgesia(PCEA) group and control group. The HANS group was treated by stimulating the acupoints of Jia Ji(T10-L3) and Ciliao(BL 32)with DC pulse of 100 Hz and 15-30 m A produced by a portable battery-powered Han's Acupoint Nerve Stimulator for 30 min. The PCIA group was intravenously infused Ondansetron(8 mg) for 5 min,then tramadol injection(1.5 mg/kg) was slowly dripped by using Baxter APⅡ electronic pump with50 m L tramadol(0.70%) + ondansetron(8 mg),background infusion 2 m L/h, PCA dose of 2 m L,lockout interval of 10 min. In PCEA group, women received intrathecal injection ropivacaine(3 mg) in L2-3, and epidural catheter was connected to Baxter APⅡ electronic pump, with 100 m L Ropivacaine(0.1%) and Sufentanil(50 ug), background infusion5 m L, Patient controlled analgesia(PCA) dose of 5m L, lockout interval of 10 min. The control group was not received analgesia. The visual analogue scale(VAS), stage and manner of labor, Apgar score of newborn, neonatal weights, oxytocin dosage,postpartum hemorrhage and side effects were monitored in all groups.RESULTS: The vital signs were all stable in the four analgesic groups. After analgesia, there was statistical difference in VAS score between HANS group and control group, between PCEA group and the control group, between PCIA group and control group. The analgesic effect in the PCEA group was significantly better than that of other two groups.The second stage of labor in the PCEA group was longer than the other three groups, showing significant difference between them. The Apgar score of newborn 1min after birth in the PCIA group was slightly lower than that of the other two groups,showing significant difference between them. The neonatal weights between four groups were not significantly different. The rate of cesarean sectionin the control group was significantly higher than that of the labor analgesia group, there was statistically difference in four groups. The number of PCIA group that used oxytocin was lower than that of other three groups. There was no significant difference in postpartum hemorrhage between four groups. The side effects of the PCEA group were itching, uroschesis and neonatal asphyxia and PCIA group were nausea and vomiting and neonatal asphyxia. However, fewer side effects were observed in the HANS group.CONCLUSION: The DC pulse produced by HANS may be a non-pharmacological alternative to labor pain with fewer side effects. | Liu Ye Xu Mingjun Che Xiangming He Junqin Guo Dandan Zhao Guosheng Zhang Guogang Zhang Shuo Kang Kai Zhang Chunlei Wang Yinan Li Shan Zhang Qinglin Xu Li Zhang Ming Han Bin Jing Yumiao Zhang Ning | 2015 | Journal of Traditional Chinese Medicine2015，35，6： | 4 |
| 8 | A revised species population estimate for the Bar-headed Goose(Anser indicus)显示文摘Background: The Bar-headed Goose(Anser indicus) is a species that relies heavily on the plateau wetlands of Asia and whose population was thought to be declining. Over the past decade, south-central Tibet, one of the most important wintering grounds, supported large numbers of Bar-headed Geese, but the population had not been regularly monitored in this area.Methods: We surveyed wintering Bar-headed Geese along the Yarlung Zangbo, Lhasa and Nyang Qu rivers, the three major river valleys and their tributaries in south-central Tibet in January 2014 and recorded their location, flock size and habitat utilization. Based on these data and the latest wintering counts elsewhere, we revised the population estimate for this species.Results: We recorded more than 67,000 Bar-headed Geese in south-central Tibet during January 2014. By geographic area, the geese were most abundant in the Lhasa River valley(38.5%) and the Nyang Qu River valley(31.0%), and by administrative division in Lhunzhub(27.2%) and Shigatse(26.7%). Bar-headed Geese were most often observed feeding in winter wheat fields and ploughed fields, resting on pastureland and marshes. The approximate number of 67,000 geese recorded in Tibet is more than four times the estimate of 1993 for the same region and exceeds the most recent world population estimate of 52,000–60,000. Based on our work in Tibet and the latest wintering counts available from other areas, we revised the estimated population size of this species to 97,000–118,000.Conclusions: Our result reveals a remarkable increase in the number of Bar-headed Geese wintering in south-central Tibet. This population increase most likely stems from a proliferation of cropland and especially winter wheat fields in south-central Tibet. This habitat improvement may also cause short-stopping of the Bar-headed Goose and thus reduce mortality of the geese that would otherwise undertake a somewhat daunting trans-Himalayan migration. | Dongping Liu Guogang Zhang Fengshan Li Tian Ma Jun Lu Fawen Qian | 2017 | Chinese Birds2017，，1： | 4 |
| 9 | Change in Sediment Provenance Near the Current Estuary of Yellow River Since the Holocene Transgression显示文摘Sedimentary sequence and sediment provenance are important factors when it comes to the studies on marine sedimentation. This paper studies grain size distribution, lithological characteristics, major and rare earth elemental compositions, micropaleontological features and ^(14)C ages in order to examine sedimentary sequence and sediment provenance of the core BH6 drilled at the mouth of the Yellow River in Bohai Sea. According to the grain size and the micropaleontological compositions, 4 sedimentary units have been identified. Unit 1(0–8.08 mbsf) is of the delta sedimentary facies, Unit 2(8.08–12.08 mbsf) is of the neritic shelf facies, Unit 3(12.08–23.85 mbsf) is of near-estuary beach-tidal facies, and Unit 4(23.85 mbsf–) is of the continental lake facies. The deposits from Unit 1 to Unit 3 have been found to be marine strata formed after the Holocene transgression at about 10 ka BP, while Unit 4 is continental lacustrine deposit formed before 10 ka BP. The provenances of core BH6 sediments show properties of the continental crust and vary in different sedimentary periods. For Unit 4 sediments, the source regions are dispersed while the main provenance is not clear, although the parent rock characteristics of a few samples are similar to the Luanhe River sediments. For Unit 3, sediments at 21.1–23.85 mbsf have been mainly transported from the Liaohe River, while sediments above 21.1 mbsf are mainly from the Yellow River and partially from the Liaohe River. For Unit 2, the sediments have been mainly transported from the Yellow River, with a small amount from other rivers. For Unit 1, the provenance is mainly the Yellow River catchment. These results help in better understanding the evolution of the Yellow River Delta. | SONG Sheng FENG Xiuli LI Guogang LIU Xiao XIAO Xiao FENG Li | 2018 | Journal of Ocean University of China2018，17，3： | 3 |
| 10 | Antibacterial Performance of Cu-Bearing Stainless Steel against Staphylococcus aureus and Pseudomonas aeruginosa in Whole Milk显示文摘Pathogen microorganisms exist in various environments such as dairy processing facilities.They are not easily eliminated,and signi?cantly raise the risk of bacterial contamination.The inhibition ability of a novel type 304 Cu-bearing stainless steel(304CuSS)with nano-sized Cu-rich precipitates against Staphylococcus aureus(S.aureus)and Pseudomonas aeruginosa(P.aeruginosa)added whole milk was investigated in this study.The results showed that after 24 h contact,the inhibition rates of the 304CuSS against S.aureus and P.aeruginosa added whole milk reached 99.2%±0.3% and 99.3%±0.2%,respectively,in contrast with the 304SS.In the plain whole milk,the inhibition rate of the 304CuSS also reached 66.9%±2.0% compared with the 304SS.The results demonstrated that the 304CuSS killed majority of the planktonic bacteria,and inhibited sessile bacteria adherence to the steel surface in the whole milk with and without bacteria addition,signi?cantly reducing the bacterial growth rate.These research outcomes explicitly show an application potential of this novel antibacterial stainless steel in the dairy related food industry. | Li Nan Guogang Ren Donghui Wang Ke Yang | 2016 | Journal of Materials Science & Technology2016，32，5： | 3 |
| 11 | New Discovery and Zircon Hf Isotopic Composition of the Early Yanshannian Monzogranite in the Yingyangguan Group of Eastern Guangxi, China显示文摘Objective The Yingyangguan Group is widely exposed in the southwestern segment of boundary belt between Yangtze and Cathaysian blocks and is mainly composed of a suit of lower-grade metamorphic marine volcanoclasticsedimentary rocks(Zhou Hanwen et al.,2002).Its forming age and petrogenesis are critical for better understanding the orogenic process and relationship of the Yangtze | LI Xiang TU Bing WANG Lingzhan TIAN Yang XIE Guogang ZHANG Jianyu | 2018 | Acta Geologica Sinica(English Edition)2018，92，4： | 2 |
| 12 | Hydrothermal synthesis and visible-light photocatalytic activity of α-Fe 2 O 3 /TiO 2 composite hollow microspheres显示文摘 | Hua Tang Du Zhang Guogang Tang Xiaorui Ji Wenjing Li Changsheng Li Xiaofei Yang | 2013 | Ceramics International2013，，： | 2 |
| 13 | Extrapolation Model of High Temperature Creep for 12Cr1MoV Steel显示文摘The creep curves of heat resistant steel 12Cr1MoV was investigated. by constant stress creep tests. The creep curves of constant stress creep are quite different from that of constant load creep. The original θ- Concept Project procedure can be validated to successfully describe the constant stress creep curves but not constant load creep. A modified θprocedure was developed. This approach can successfully described both constant stress creep and constant load creep curves. The new approach leads to a great improvement in accuracy of long term prediction of extrapolation due to validation of a great number of existing constant load creep data. | CHEN Guoliang GUO Hong SUN Jiyue SHU Guogang LI Yiming(State Key Laboratory for Advanced Metals and Materials,USTB, Beijing 100083, China) (Thermal Power Research Institute, Xian 710032, China) | 1997 | International Journal of Minerals,Metallurgy and Materials1997，11，2： | 2 |
| 14 | Effect of human‐controlled hydrological regime on the source, transport, and flux of particulate organic carbon from the lower Huanghe (Yellow River)显示文摘 | Bangqi Hu Jun Li Naishuang Bi Houjie Wang Helong Wei Jingtao Zhao Luhua Xie Liang Zou Ruyong Cui Song Li Ming Liu Guogang Li | 2015 | Earth Surf. Process. Landforms2015，，8： | 1 |
| 15 | Two distinctive variational regions of radial particle concentration profiles in circulating fluidized bed risers显示文摘 | XU Guangwen SUN Guogang Kosuke N Li Jinghai Kunio K | 1999 | Powder Technology1999，101，： | 1 |
| 16 | Contrast-enhanced ultrasound (CEUS) facilitated US in detecting lateral neck lymph node metastasis of thyroid cancer patients: diagnosis value and enhancement patterns of malignant lymph nodes显示文摘 | Dapeng Xiang Yurong Hong Bo Zhang Pintong Huang Guogang Li Ping Wang Zhiyu Li | 2014 | European Radiology2014，，10： | 1 |
| 17 | Investigation of Different Coke Samples Adhering to Cyclone Walls of a Commercial RFCC Reactor显示文摘The microstructure and properties of the coke samples collected from 4 different wall regions of the cyclone in the reactor of a residue fluid catalytic cracking unit(RFCCU) were analyzed by using the scanning-electron microscope(SEM), and the possible coke formation processes were investigated as well. The results showed that some of the heavy nonvolatile oil droplets entrained in the flowing oil and gas mixture could possibly deposit or collide on the walls by gravity settling or turbulence diffusion, and then were gradually carbonized into solid coke by condensing and polymerization along with dehydrogenation. Meanwhile some of fine catalyst particles also built up and integrated into the solid coke. The coke can be classified into two types, namely, the hard coke and the soft coke, according to its property, composition and microstructure. The soft coke is formed in the oil and gas mixture's stagnant region where the oil droplets and catalyst particles are freely settled on the wall. The soft coke appears to be loose and contains lots of large catalyst particles. However, the hard coke is formed in the oil and gas mixture's flowing region where the oil droplets and catalyst particles diffuse towards the wall. This kind of coke is nonporous and very hard, which contains a few fine catalyst particles. Therefore, it is clear that the oil and gas mixture not only carries the oil droplets and catalyst particles, but also has the effects on their deposition on the wall, which can influence the composition and characteristics of deposited coke. | Li Xiaoman Song Jianfei Sun Guogang Yan Chaoyu Wei Yaodong | 2016 | China Petroleum Processing & Petrochemical Technology2016，18，1： | 1 |
| 18 | One-way property proof in public key cryptography based on OHNN显示文摘 | Li Guogang Guo Donghui | 2011 | Procedia Engineering2011，15，12： | 1 |
| 19 | Novel aminopeptidase N inhibitors derived from 1,3,4-thiadiazole scaffold显示文摘 | GuoGang Tu ShaoHua Li HuiMing Huang Gang Li Fang Xiong Xi Mai HuaWei Zhu BinHai Kuang Wen Fang Xu | 2008 | Bioorganic & Medicinal Chemistry2008，，14： | 1 |
| 20 | Effect of vitamins C and E supplementation on Helicobacter pylori eradication: a meta-analysis显示文摘 | Guogang Li Lan Li Chaohui Yu Li Chen | 2011 | British Journal of Nutrition2011，，11： | 1 |
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