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| 1 | Modeling rock specimens through 3D printing: Tentative experiments and prospects显示文摘Current developments in 3D printing (3DP) technology provide the opportunity to produce rock-like specimens and geotechnical models through additive manufacturing, that is, from a file viewed with a computer to a real object. This study investigated the serviceability of3 DP products as substitutes for rock specimens and rock-type materials in experimental analysis of deformation and failure in the laboratory. These experiments were performed on two types of materials as follows:(1) compressive experiments on printed sand-powder specimens in different shapes and structures, including intact cylinders, cylinders with small holes, and cuboids with pre-existing cracks, and(2) compressive and shearing experiments on printed polylactic acid cylinders and molded shearing blocks. These tentative tests for 3DP technology have exposed its advantages in producing complicated specimens with special external forms and internal structures, the mechanical similarity of its product to rock-type material in terms of deformation and failure, and its precision in mapping shapes from the original body to the trial sample(such as a natural rock joint). These experiments and analyses also successfully demonstrate the potential and prospects of 3DP technology to assist in the deformation and failure analysis of rock-type materials, as well as in the simulation of similar material modeling experiments. | Quan Jiang Xiating Feng Lvbo Song Yahua Gong Hong Zheng Jie Cui | 2016 | Acta Mechanica Sinica2016，32，1： | 19 |
| 2 | Twenty-five years of progress in geopolitics research: Efforts from China's geographers显示文摘 | DU Debin DUAN Dezhong LIU Chengliang MA Yahua | 2016 | Journal of Geographical Sciences2016，26，8： | 9 |
| 3 | Actual evapotranspiration of subalpine meadows in the Qilian Mountains, Northwest China显示文摘As a main component in water balance,evapotranspiration(ET)is of great importance for water saving,especially in arid and semi-arid areas.In this study,the FAO(Food and Agriculture Organization)Penman-Monteith model was used to estimate the magnitude and temporal dynamics of reference evapotranspiration(ET0)in 2014 in subalpine meadows of the Qilian Mountains,Northwest China.Meanwhile,actual ET(ETc)was also investigated by the eddy covariance(EC)system.Results indicated that ETc estimated by the EC System was 583 mm,lower than ET0(923 mm)estimated by the FAO Penman-Monteith model in 2014.Moreover,ET0 began to increase in March and reached the peak value in August and then declined in September,however,ETc began to increase from April and reached the peak value in July,and then declined in August.Total ETc and ET0 values during the growing season(from May to September)were 441 and 666 mm,respectively,which accounted for 75.73%of annual cumulative ETc and 72.34%of annual cumulative ET0,respectively.A crop coefficient(kc)was also estimated for calculating the ETc,and average value of kc during the growing season was 0.81(ranging from 0.45 to 1.16).Air temperature(Ta),wind speed(u),net radiation(Rn)and soil temperature(Ts)at the depth of 5 cm and aboveground biomass were critical factors for affecting kc,furthermore,a daily empirical kc equation including these main driving factors was developed.Our result demonstrated that the ETc value estimated by the data of kc and ET0 was validated and consistent with the growing season data in 2015 and 2016. | GAO Yunfei ZHAO Chuanyan Muhammad W ASHIQ WANG Qingtao RONG Zhanlei LIU Junjie MAO Yahua GUO Zhaoxia WANG Wenbin | 2019 | Journal of Arid Land2019，11，3： | 8 |
| 4 | SSHT Process -a Low Cost Solution for Low Sulfur and Low Aromatics Diesel显示文摘The need for cleaner fuels has resulted in a continuing worldwide trend to reduce diesel sulfur and aromatics. There are many approaches to reducing sulfur and aromatics in diesel. Most of them have a common drawback of high cost because of adopting two stages of hydrotreating and using noble-metal catalyst, especially for reducing aromatics. The attempt to resolve this issue has led to the recent development of the Single Stage Hydrotreating (SSHT) process by Research Institute of Petroleum Processing (RIPP), SINOPEC.The SSHT process is a single-stage hydrotreating technology for producing low sulfur and low aromatics diesel. The process uses one or two non-noble-metal catalysts system and operates at moderate pressure. When revamping an existing unit to meet low aromatics diesel specification, the only thing to do is to add a reactor or replace the existing reactor, In pilot plant tests, the SSHT technology has successfully treated SRGO (Straight Run Gas Oil), LCO (Light Cycle Oil) or the blend of them. It is shown that by using the SSHT process diesel with sulfur of 30 ppm and aromatics of 15 m% can be produced from Middle-East SRGO and diesel with aromatics content of 25 m% can be produced from cracked feed, such as FCC-LCO. High diesel yield and cetane number gain (from cracked feed stocks) give the SSHT technology a performance advantage compared to conventional hydrocracking and hydrotreating processes.The lower investment and operating cost is another advantage. The first commercial application of the SSHT technology has been in operation since September 2001. | Gao Xiaodong Nie Hong Shi Yulin Shi Yahua Li Dadong(Research Institute of Petroleum Processing, Beijing 100083) | 2003 | China Petroleum Processing & Petrochemical Technology2003，5，2： | 5 |
| 5 | Droplet dynamics on slippery surfaces:small droplet,big impact显示文摘The dynamic interaction of droplets with slippery surfaces is essential to various industrial applications,such as anti-icing,water-repellency or water-harvesting,anti-bacterial,and phase change heat transfer.With recent progress in materials,manufacturing as well as learning from nature,the physics of droplet dynamics has been greatly enriched owing to the emergence of peculiar wetting states manifested on bio-inspired textured surfaces.This review is devoted to the discussion of the recent progress made in the authors’understanding of the dynamic interaction of small droplets with bio-inspired surfaces.Particular attention is given to droplet impact on slippery surfaces,such as superhydrophobic surfaces characterised with air-solid-liquid triple-phase interface and slippery lubricant infused porous surfaces characterised with the liquid/liquid two-phase interface.Droplet spreading,retraction,contact time,elastodynamics as well as oblique impact are systematically reviewed.Finally,the authors offer their perspectives on this important and highly multidisciplinary research area. | Yahua Liu Xiantong Yan Zuankai Wang | 2019 | Biosurface and Biotribology2019，5，2： | 4 |
| 6 | Voltage-induced penetration effect in liquid metals at room temperature显示文摘Room-temperature liquid metal is discovered to be capable of penetrating through macro-and microporous materials by applying a voltage.The liquid metal penetration effects are demonstrated in various porous materials such as tissue paper;thick and fine sponges;fabrics;and meshes.The underlying mechanism is that the high surface tension of liquid metal can be significantly reduced to near-zero due to the voltage-induced oxidation of the liquid metal surface in a solution.It is the extremely low surface tension and gravity that cause the liquid metal to superwet the solid surface^leading to the penetration phenomena.These findings offer new opportunities for novel microfluidic applications and could promote further discovery of more exotic fluid states of liquid metals. | Frank F Yun Zhenwei Yu Yahua He Lei Jiang Zhao Wang Haoshuang Gu Xiaolin Wang | 2020 | National Science Review2020，7，2： | 3 |
| 7 | Ion exchange membranes from poly(2,6-dimethyl-1,4-phenylene oxide) and related applications显示文摘Ion exchange membranes(IEMs) play a significant role in fields of energy and environment, for instance fuel cells, diffusion dialysis, electrodialysis, etc. The limited choice of commercially available IEMs has produced a strong demand of fabricating IEMs with improved properties via facile synthetic strategies over the past two decades. Poly(phenylene oxide)(PPO) is considered as a promising polymeric material for constructing practical IEMs, due to its advantages of good physicochemical properties, low manufacturing cost and easy post functionalization. In this review, we present the accumulated efforts in synthetic strategies towards diverse types of PPO-based IEMs. Relation between polymer structures and the resulted features is discussed in detail. Besides, applying IEMs from PPO and its derivatives in fuel cell, diffusion dialysis and electrodialysis is summarized and commented. | Jiahui Zhou Peipei Zuo Yahua Liu Zhengjin Yang Tongwen Xu | 2018 | Science China Chemistry2018，61，9： | 3 |
| 8 | Low Sulfur Low Olefin Gasoline Production by RIDOS Technology显示文摘By analysis of the component and structure of a real high olefinic FCC naphtha, a technology of deep desulfurization and olefin saturation with minimal octane loss is developed, which is named RIDOS. The multi functions of RIDOS technology are achieved by using a series of new catalysts, which show the good feed adaptability and operation flexibility. The results of the first commercial RIDOS unit showed that an ultra low sulfur (<10 μg/g), low olefin(<20%) gasoline was produced, while the road octane number lost only 1.3 unit. RIDOS technology provides the possibility for producing the clean fuels meeting most strict specifications. | Li Dadong 1, Shi Yahua 1, Yang Qingyu 2 (1. Research Institute of Petroleum Processing, SINOPEC, Beijing 100083 2. Yanshan Petrochemical Company, SINOPEC, Beijing 102503) | 2003 | 工程科学(英文版)2003，1，2： | 3 |
| 9 | Leaf gas exchange and photosynthesis curves of Elymus nutans and Potentilla anserina under fencing and grazing conditions in the Qilian Mountains, Northwest China显示文摘Potentilla anserina L.and Elymus nutans Griseb.are dominant species in the subalpine meadows of China.Grazing is one of the most important factors that influence community structure and productivity of subalpine meadows.Understanding how grazing changes photosynthetic capability is essential for preservation and restoration of grasslands.However,information about the effects of grazing on photosynthetic capability remains inadequate.Experiments were conducted in fencing and grazing areas in the Qilian Mountains,Northwest China.The leaf gas exchange and photosynthetic curves of P.anserina and E.nutans were measured at different growth stages.Results showed that grazing decreased the values of leaf gas exchange parameters,such as net photosynthetic rate,stomatal conductance,transpiration rate,and intercellular CO2 concentration of P.anserina and E.nutans.In addition,grazing decreased the values of net photosynthetic rate-photosynthetically active radiation(PN-PAR)curve parameters,such as light-saturated net photosynthetic rate,apparent quantum efficiency,light compensation point,light saturation point,and dark respiration rate.Our results demonstrated that grazing was the primary limiting factor for photosynthesis of dominant grassland species in the study area. | LIU Junjie WANG Xiaoping GAO Yunfei RONG Zhanlei ZHANG Guangde WANG Wenbin GE Lijuan MAO Yahua GUO Zhaoxia ZHAO Chuanyan | 2019 | Journal of Arid Land2019，11，3： | 3 |
| 10 | Clinical outcomes of coronavirus disease 2019 (COVID-19) in cancer patients with prior exposure to immune checkpoint inhibitors显示文摘Dear Editor,The coronavirus disease 2019(COVID-19)pandemic has affected over 6,000,000 people globally[1].Patients with COVID-19 manifest with symptoms of fever,dry cough,dyspnea,and present with radiological changes that are consistent with atypical pneumonia[2].Pathogenetic mechanisms for these abnormalities involve the systemic immune response that is associated with the hyperactivation of peripheral CD8+and CD4+T cells,and a cytokine storm[3].Globally,the reported prevalence of patients with COVID-19 and cancer ranges from 0.5%to 6.0%in the different case series[4]. | Qiuji Wu Qian Chu Hongyan Zhang Bin Yang Xudong He Yahua Zhong Xianglin Yuan Melvin L.K.Chua Conghua Xie | 2020 | Cancer Communications2020，40，8： | 3 |
| 11 | Tissue factor expression in rheumatoid synovium: A potential role in pannus invasion of rheumatoid arthritis显示文摘 | Lujun Chen Yahua Lu Yang Chu Jun Xie Wen’ge Ding Fengming Wang | 2013 | Acta Histochemica2013，，： | 2 |
| 12 | A preliminary study on the characterization of follicular helper T (Tfh) cells in rheumatoid arthritis synovium显示文摘 | Yang Chu Fengming Wang Meng Zhou Lujun Chen Yahua Lu | 2013 | Acta Histochemica2013，，： | 2 |
| 13 | TiO2-incorporated polyelectrolyte composite membrane with transformable hydrophilicity/hydrophobicity for nanofiltration separation显示文摘The wettability of the membrane surface has shown obvious influent on the separation performance of the membrane.In this work,a hydrophilic PDA-[PDDA/TiO2]+Cl-membrane was prepared by a one-step codeposition of poly(diallyldimethylammonium chloride)(PDDA)polyelectrolyte solution containing positively charged TiO2@PDDA nanoparticles with the assistance of dopamine(DA).Such positively charged membrane can be transformed into a hydrophobic membrane PDA-[PDDA/TiO2]+PFO-via the counterion exchange between Cl-and PFO-(perfluorooctanoate).The transformation between hydrophilicity and hydrophobicity is reversible.For both hydrophilic and hydrophobic membranes,the nanofiltration performances were respectively investigated by the aqueous solution and ethanol solution of dyes including methyl blue(MB),Congo red(CR)and Evans blue(EB),and as well metal salt aqueous solution.The consecutive running stability and anti-fouling performance of both hydrophilic and hydrophobic membranes were explored.The results revealed that both membranes showed high nanofiltration performances for retention of dyes in(non)aqueous solution.For the hydrophilic membrane,the rejection of salts in a sequence is MgSO4>Na2SO4>MgCl2>NaCl.Moreover,both of the hydrophilic and hydrophobic membranes showed high stability and antifouling property. | Yahua Lu Zhenping Qin Naixin Wang Hongxia Guo Quanfu An Yucang Liang | 2020 | Chinese Journal of Chemical Engineering2020，28，10： | 2 |
| 14 | Rheological properties of polymer micro-gel dispersions显示文摘The influence of swelling time,temperature,NaCl concentration and polymer micro-gel concentration on rheological properties of polymer micro-gel dispersions was studied by using a HAAKE rheometer.The results showed that with increasing swelling time and NaCl concentration,the polymer micro-gel dispersions changed from a shear-thickening fluid to a Newtonian fluid.The polymer micro- gel dispersion show shear-thinning in non-saline water.At higher swelling temperature,the time of the polymer micro-gel dispersion showing shear-thickening was shorter.With increasing polymer micro-gel concentration,the dispersion changed from shear-thickening to shear-thinning. | Dong Zhaoxia Li Yahua Lin Meiqin Li Mingyuan | 2009 | Petroleum Science2009，6，3： | 2 |
| 15 | Preparation of Pseudo-boehmite and y-Al_2O_3 Support by Neutralization of NaAlO_2 Solution with CO_2显示文摘Pseudo-boehmite (PB) and γ-Al2O3 support are prepared by neutralization ofNaAlO2 solution with CO2(mixed gases) on bench scale. PB, typically loosely packed, fibrous particle/aggregate, is obtained by adjustingconcentration and flow rate of CO2 and concentration of NaAlO2 solution at a pH level lower than that commonlyassumed during neutralization. After calcination at different temperatures, γ-Al2O3 supports with different pore vol-ume and different pore size are prepared at different conditions. | Yang Qinghe Liu Bin Li Dadong Shi Yahua Nie Hong Kang Xiaohong(Research Institute of Petroleum Processing, SINOPEC,Beijing, 100083) | 2003 | China Petroleum Processing & Petrochemical Technology2003，5，1： | 2 |
| 16 | Effective nanotherapeutic approach for metastatic breast cancer treatment by supplemental oxygenation and imaging-guided phototherapy显示文摘Metastasis remains the primary cause for mortality of breast cancer.Despite advances in current therapeutic agents,patients with metastatic breast cancer still have poor prognoses.Tumor hypoxia,a key microenvironment factor,is emerging as an attractive target to prevent metastasis and is also involved with resistance to phototherapy.Here,we show an effective nanotherapeutic approach based on manganese dioxide-coated polydopamine nanocarriers to trigger robust anti-tumor and anti-metastasis responses against metastatic breast cancer by supplemental oxygenation and multimodal imaging-guided phototherapies.In cancer cells,the produced oxygen by the developed nanoplatform decreases the expression of hypoxia-inducible factors 1 a to inhibit tumor metastasis,and enhances the efficacy of photodynamic therapy.This nanotherapeutic approach enables the combined photodynamic/photothermal treatments with great inhibition on cell migration and invasion in vitro.Moreover,the nanotherapeutics effectively suppresses primary tumor progress and inhibits lung metastasis in v ivo in a breast cancer mouse model with satisfying biosafety.This study suggests that the tumor hypoxia-targeting nanotherapeutics have great potential for preventing and treating metastatic cancers. | Jialing Hu Fuan Wang Feng Liu Wentong Sun Qunying Jiang Yahua Liu Yun Zhao Xiaoqing Liu | 2020 | Nano Research2020，13，4： | 1 |
| 17 | Modified non-rectangular hyperbola equation with plant height for photosynthetic light-response curves of Potentilla anserina and Elymus nutans at various growth phases in the Heihe River Basin, Northwest China显示文摘The non-rectangular hyperbola(NRH)equation is the most popular method that plots the photosynthetic light-response(PLR)curve and helps to identify plant photosynthetic capability.However,the PLR curve can't be plotted well by the NRH equation at different plant growth phases due to the variations of plant development.Recently,plant physiological parameters have been considered into the NRH equation to establish the modified NRH equation,but plant height(H),an important parameter in plant growth phases,is not taken into account.In this study,H was incorporated into the NRH equation to establish the modified NRH equation,which could be used to estimate photosynthetic capability of herbage at different growth phases.To explore photosynthetic capability of herbage,we selected the dominant herbage species Potentilla anserina L.and Elymus nutans Griseb.in the Heihe River Basin,Northwest China as the research materials.Totally,twenty-four PLR curves and H at different growth phases were measured during the growing season in 2016.Results showed that the maximum net photosynthetic rate and the initial slope of PLR curve linearly increased with H.The modified NRH equation,which is established by introducing H and an H-based adjustment factor into the NRH equation,described better the PLR curves of P.anserina and E.nutans than the original ones.The results may provide an effective method to estimate the net primary productivity of grasslands in the study area. | LIU Junjie WANG Xiaoping RONG Zhanlei GAO Yunfei ZHANG Guangde WANGWenbin GE Lijuan MAO Yahua GUO Zhaoxia WANG Qingtao ZHAO Chuanyan | 2019 | Journal of Arid Land2019，11，5： | 1 |
| 18 | Engineer Nanoscale Defects into Selective Channels:MOF-Enhanced Li^(+) Separation by Porous Layered Double Hydroxide Membrane显示文摘Two-dimensional(2D)membrane-based ion separation technology has been increasingly explored to address the problem of lithium resource shortage,yet it remains a sound challenge to design 2D membranes of high selectivity and permeability for ion separation applications.Zeolitic imidazolate framework functionalized modified layered double hydroxide(ZIF-8@MLDH)composite membranes with high lithium-ion(Li^(+)) permeability and excellent operational stability were obtained in this work by in situ depositing functional ZIF-8 nanoparticles into the nanopores acting as framework defects in MLDH membranes.The defect-rich framework amplified the permeability of Li^(+),and the site-selective growth of ZIF-8 in the framework defects bettered its selectivity.Specifically speaking,the ZIF-8@MLDH membranes featured a high permeation rate of Li^(+) up to 1.73 mol m^(−2) h^(−1) and a desirable selectiv-ity of Li^(+)/Mg^(2+) up to 31.9.Simulations supported that the simultaneously enhanced selectivity and permeability of Li+are attributed to changes in the type of mass transfer channels and the difference in the dehydration capacity of hydrated metal cations when they pass through nanochannels of ZIF-8.This study will inspire the ongoing research of high-performance 2D membranes through the engineering of defects. | Yahua Lu Rongkun Zhou Naixin Wang Yuye Yang Zilong Zheng Miao Zhang Quan-Fu An Jiayin Yuan | 2023 | Nano-Micro Letters2023，15，9： | 1 |
| 19 | China' s airline deregulation since 1997 and the driving forces behind the 2002 airline con- solidations显示文摘 | Zhang Yahua Round David K | 2008 | Joumal of Air Transport Management2008，14，3： | 1 |
| 20 | Chemical Research in Toxicology显示文摘 | Liu Yahua Xu Guozhang Lawrence M Sayre | 2003 | 16(12):1589-15972003，16，12： | 1 |
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