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| 1 | The rice OsV4 encoding a novel pentatricopeptide repeat protein is required for chloroplast development during the early leaf stage under cold stress显示文摘Pentatricopeptide repeat(PPR)proteins,characterized by tandem arrays of a 35 amino acid motif,have been suggested to play central and broad roles in modulating the expression of organelle genes in plants.However,the molecular mechanisms of most rice PPR genes remains unclear.In this paper,we isolated and characterized a temperature-conditional virescent mutant,OsV4,in rice(Oryza sativa cultivar Jiahua1(WT,japonica rice variety)).The mutant displays albino phenotype and abnormal chloroplasts at the three leaf stage,which gradually turns green after the four leaf stage at a low temperature(20°C).But the mutant always develops green leaves and well-developed chloroplasts at a high temperature(32°C).Genetic and molecular analyses uncovered that OsV4 encodes a novel chloroplast-targeted PPR protein including four PPR motifs.Further investigations show that the mutant phenotype is associated with changes in chlorophyll content and chloroplast development.The OsV4transcripts only accumulate to high levels in young leaves,indicating that its expression is tissue-specific.In addition,transcript levels of some ribosomal components and plastid-encoded polymerase-dependent genes are dramatically reduced in the albino mutants grown at 20°C.These findings suggest that OsV4 plays an important role during early chloroplast development under cold stress in rice. | Xiaodi Gong Qianqian Su Dongzhi Lin Quan Jiang Jianlong Xu Jianhui Zhang Sheng Teng Yanjun Dong | 2014 | Journal of Integrative Plant Biology2014，56，4： | 19 |
| 2 | A 2-kb Mycovirus Converts a Pathogenic Fungus into a Beneficial Endophyte for Brassica Protection and Yield Enhancement显示文摘Mycoviruses are viruses that infect fungi,and hypovirulence-associated mycoviruses have the potential to control fungal diseases.However,it is unclear how mycovirus-mediated hypovirulent strains live and survive in the field,and no mycovirus has been applied for field crop protection.In this study,we found that a previously identified small DNA mycovirus(SsHADV-1)can convert its host,Sclerotinia sclerotiorum,from a typical necrotrophic pathogen to a beneficial endophytic fungus.SsHADV-1 downregulates the expression of key pathogenicity factor genes in S.sclerotiorum during infection.When growing in rapeseed,the SsHADV-1-infected strain DT-8 significantly regulates the expression of rapeseed genes involved in defense,hormone signaling,and circadian rhythm pathways.As a result,plant growth is promoted and disease resistance is enhanced.Field experiments showed that spraying DT-8 at the early flowering stage can reduce the disease severity of rapeseed stem rot by 67.6%and improve yield by 14.9%.Moreover,we discovered that SsHADV-1 could also infect other S.sclerotiorum strains on DT-8-inoculated plants and that DT-8 could be recovered from dead plants.These findings suggest that the mycoviruses may have the ability to shape the origin of endophytism.Our discoveries suggest that mycoviruses may influence the origin of endophytism and may also offer a novel strategy for disease control in which mycovirus-infected strains are used to improve crop health and release mycoviruses into the field. | Hongxiang Zhang Jiatao Xie Yanping Fu Jiasen Cheng Zheng Qu Zhenzhen Zhao Shufen Cheng Tao Chen Bo Li Qianqian Wang Xinqiang Liu Binnian Tian David B.Collinge Daohong Jiang | 2020 | Molecular Plant2020，13，10： | 9 |
| 3 | Clinical and genetic findings in a Chinese family with VDR-associated hereditary vitamin D-resistant rickets显示文摘Hereditary vitamin D-resistant rickets(HVDRR) is a rare autosomal recessive disorder characterized by severe rickets,hypocalcemia,hypophosphatemia,secondary hyperparathyroidism,and elevated alkaline phosphatase.This disorder is caused by homogeneous or heterogeneous mutations affecting the function of the vitamin D receptor(VDR),which lead to complete or partial target organ resistance to the action of 1,25-dihydroxy vitamin D.A non-consanguineous family of Chinese Han origin with one affected individual demonstrating HVDRR was recruited,with the proband evaluated clinically,biochemically and radiographically.To identify the presence of mutations in the VDR gene,all the exons and exon–intron junctions of the VDR gene from all family members were amplified using PCR and sequenced.The proband showed rickets,progressive alopecia,hypocalcemia,hypophosphatemia,secondary hyperparathyroidism,and elevated alkaline phosphatase.She also suffered from epilepsy,which is rarely seen in patients with HVDRR.Direct sequencing analysis revealed a homozygous missense mutation c.122G4A(p.C41Y) in the VDR gene of the proband,which is located in the first zinc finger of the DNA-binding domain.Both parents had a normal phenotype and were found to be heterozygous for this mutation.We report a Chinese Han family with one individual affected with HVDRR.A homozygous missense mutation c.122G4A(p.C41Y) in the VDR gene was found to be responsible for the patient's syndrome.In contrast to the results of treatment of HVDRR in other patients,our patient responded well to a supplement of oral calcium and a low dose of calcitriol. | Qianqian Pang Xuan Qi Yan Jiang Ou Wang Mei Li Xiaoping Xing Jin Dong Weibo Xia | 2016 | Bone Research2016，4，1： | 9 |
| 4 | Chromosome-level genome of Himalayan yew provides insights into the origin and evolution of the paclitaxel biosynthetic pathway显示文摘Taxus,commonly known as yew,is a well-known gymnosperm with great ornamental and medicinal value.In this study,by assembling a chromosome-level genome of the Himalayan yew(Taxus wallichiana)with 10.9 Gb in 12 chromosomes,we revealed that tandem duplication acts as the driving force of gene family evolution in the yew genome,resulting in the main genes for paclitaxel biosynthesis,i.e.those encoding the taxadiene synthase,P450s,and transferases,being clustered on the same chromosome.The tandem duplication may also provide genetic resources for the nature to sculpt the core structure of taxoids at different positions and subsequently establish the complex pathway of paclitaxel by neofunctionalization.Furthermore,we confirmed that there are two genes in the cluster encoding isoenzymes of a known enzyme in the paclitaxel biosynthetic pathway.The reference genome of the Himalayan yew will serve as a platform for decoding the complete biosynthetic pathway of paclitaxel and understanding the chemodi-versity of taxoids in gymnosperms. | Jian Cheng Xiao Wang Xiaonan Liu Xiaoxi Zhu Zihe Li Huanyu Chu Qian Wang QianQian Lou Bijun Cai Yiqun Yang Xiaoyun Lu Kai Peng Dingyu Liu Yuwan Liu Lina Lu Huan Liu Ting Yang Qijin Ge Chengcheng Shi Guichun Liu Zhiwei Dong Xun Xu Wen Wang Huifeng Jiang Yanhe Ma | 2021 | Molecular Plant2021，14，7： | 6 |
| 5 | SWOT-AHP hybrid model for vehicle lubricants from CNPCLC,China显示文摘In recent years,owing to the strong increase in demand for lubricants,China is ranked second in the global lubricant market.With the rapid development of China's automobile industry,there is an increasing demand for vehicle lubricants and an increasing requirement for higher quality lubricants.While the demands for vehicle lubricants are increasing year by year in China,the quality grade of vehicle lubricant will be improved by leaps and bounds,and the high standard lubricant for automobile will be directly brought in line with international practice.At present,the market share of most high-end vehicle lubricant has been occupied by foreign lubricant brands.So for China National Petroleum Corporation Lubricant Company(CNPCLC),the urgent issue is that strategies must be made to respond to the stern challenges and to occupy more market share.In this paper,by using the analytic hierarchy process(AHP) technique that has the advantage of combining quantitative with qualitative analysis,a SWOT-AHP model for CNPCLC vehicle lubricants is developed,presenting a good tool for studying the competitive factors domestic and overseas for vehicle lubricants.Finally a strategic plan for CNPCLC vehicle lubricants is suggested. | Jiang Qingzhe XuYanming Xin Wenju Song Zhaozheng Song Qianqian Ke Ming | 2012 | Petroleum Science2012，9，4： | 6 |
| 6 | Superior in vitro anticancer effect of biomimetic paclitaxel and triptolide co-delivery system in gastric cancer显示文摘As a well-known anticancer drug,paclitaxel(PTX),a first-line chemotherapeutic agent,remains unsatisfactory for gastric cancer therapy.It is reported that triptolide(TPL)could enhance the anti-gastric cancer effect of PTX.Considering the poor solubility of both drugs,we developed a red blood cell membrane-biomimetic nanosystem,an emerging tool in drug delivery,to co-load paclitaxel and triptolide(red blood cell membrane coated PTX and TPL co-loaded poly(lactic-co-glycolic acid)[PLGA]nanoparticles,RP(P/T)).The successful preparation was confirmed in terms of particle size,morphology,and surface markers assays.This biomimetic system could prolong circulation and escape immune surveillance.And these properties were verified by stability,in vitro drug release,and cellular uptake assays.Moreover,the MTT and colony formation assays demonstrated the superior anti-proliferation effect of the RP(P/T)to free drugs.The enhanced antitumor effects of RP(P/T)on migration and invasion were also evaluated by wound-healing and transwell assays.Overall,the bionic co-delivery nanoplatform with improved efficacy in vitro is a promising therapy for gastric cancer. | Siwan Wang Hui Jiang Jia Wang Haisi Wu Ting Wu Mengnan Ni Qianqian Zhao You Ji Ziting Zhang Chunming Tang Huae Xu | 2021 | The Journal of Biomedical Research2021，35，4： | 5 |
| 7 | miR-410 induces both epithelial–mesenchymal transition and radioresistance through activation of the PI3K/mTOR pathway in non-small cell lung cancer显示文摘Radiotherapy remains one of the major treatments for non-small cell lung cancer(NSCLC)patients;whereas intrinsic or acquired radioresistance limits its efficacy.Nevertheless,most studies so far have only focused on acquired resistance.The exact mechanisms of intrinsic radioresistance in NSCLC are still unclear.A few studies have suggested that epithelial–mesenchymal transition(EMT)is associated with radioresistance in NSCLC.However,little is known about whether the abnormal expression of specific microRNAs induces both EMT and radioresistance.We previously found that miR-410 has multiple roles as an oncomiRNA in NSCLC.In this study,we revealed that miR-410 overexpression promoted EMT and radioresistance,accompanied by enhanced DNA damage repair both in vitro and in vivo.Conversely,knockdown of miR-410 showed the opposite effects.We further demonstrated that PTEN was a direct target of miR-410 by using bioinformatic tools and dual-luciferase reporter assays,and the miR-410-induced EMT and radioresistance were reversed by PI3K,Akt,and mTOR inhibitors or by restoring the expression of PTEN in NSCLC cells.In addition,we preliminarily found that the expression of miR-410 was positively correlated with EMT and negatively associated with the expression of PTEN in NSCLC specimens.In summary,these results demonstrated that miR-410 is an important regulator on enhancing both NSCLC EMT and radioresistance by targeting the PTEN/PI3K/mTOR axis.The findings suggest that miR-410-induced EMT might significantly contribute to the enhanced radioresistance.Therefore,miR-410 may serve as a potential biomarker or therapeutic target for NSCLC radiotherapy. | Yue Yuan Hu Liao Qiang Pu Xixian Ke Xueting Hu Yongfang Ma Xinmei Luo Qianqian Jiang Yi Gong Min Wu Lunxu Liu Wen Zhu | 2020 | Signal Transduction and Targeted Therapy2020，5，1： | 5 |
| 8 | Label-free fiber nanograting sensor for real-time in situ early monitoring of cellular apoptosis显示文摘The achievement of functional nanomodules for subcellular label-free measurement has long been pursued in order to fully understand cellular functions.Here,a compact label-free nanosensor based on a fiber taper and zinc oxide nanogratings is designed and applied for the early monitoring of apoptosis in individual living cells.Because of its nanoscale dimensions,mechanical flexibility,and minimal cytotoxicity to cells,the sensing module can be loaded in cells for long term in situ tracking with high sensitivity.A gradual increase in the nuclear refractive index during the apoptosis process is observed,revealing the increase in molecular density and the decrease in cell volume.The strategy used in our study not only contributes to the understanding of internal environmental variations during cellular apoptosis but also provides a new platform for nonfluorescent fiber devices for investigation of cellular events and understanding fundamental cell biochemical engineering. | Danran Li Nina Wang Tianyang Zhang Guangxing Wu Yifeng Xiong Qianqian Du Yunfei Tian Weiwei Zhao Jiandong Ye Shulin Gu Yanqing Lu Dechen Jiang Fei Xu | 2022 | Advanced Photonics2022，4，1： | 5 |
| 9 | Characteristics and Genetic Mechanisms of Overpressure in the Depressions of Bohai Bay Basin, China显示文摘The distribution and genetic mechanisms of abnormal pressures in the Bohai Bay Basin were systematically analyzed. Abnormal pressures are widely developed in the Bohai Bay Basin,primarily in the Paleogene E_(2s_4),E_(2s_3),E_(s_1),and Ed formations. From the onshore area of the Bohai Bay Basin to the center of the Bozhong area,the top depth of the overpressured zone in each depression increases gradually,the overpressured strata in each depression gradually move to younger formations,and the pressure structure successively alters from single-bottom- overpressure to doublebottom-overpressure and finally to double-top-overpressure. The distribution of overpressured area is consistent with the sedimentary migration controlled by the tectonic evolution of the Bohai Bay Basin,which is closely related to the hydrocarbon-generation capability of active source rocks. The overpressured strata are consistent with the source-rock intervals in each depression; the top of the overpressured zone is synchronous with the hydrocarbon generation threshold in each depression; the hydrocarbon generation capability is positively correlated with the overpressure magnitude in each formation. Undercompaction was the main mechanism of overpressure for depressions with fluid pressure coefficients less than 1.2,whereas hydrocarbon generation was the main mechanism for depressions with fluid pressure coefficients greater than 1.5. | LIU Hua JING Chen JIANG Youlu SONG Guoqi YU Qianqian FENG Yuelin | 2016 | Acta Geologica Sinica(English Edition)2016，90，6： | 4 |
| 10 | Testosterone attenuates pulmonary epithelial inflammation in male rats of COPD model through preventing NRF1-derived NF-κB signaling显示文摘Testosterone deficiency is common in male patients with chronic obstructive pulmonary disease (COPD) and may correlate with the deterioration of COPD. Clinical research suggests that testosterone replacement therapy may slow the COPD progression, but the specific biological pathway remains unclear. In this study, we explored the effect of testosterone on pulmonary inflammation in male COPD rats. The animals were co-treated with lipopolysaccharide (LPS) and cigarette to induce COPD. In COPD rats, nuclear respiratory factor 1 (NRF1) and NF-κB p65 were upregulated. In cigarette smoke extract (CSE)-, LPS-, or the combination of CSE and LPS-treated L132 cells, NRF1 and p65 were also upregulated. Silencing NRF1 resulted in the downregulation of p65. ChIP‒seq, ChIP‒qPCR, and luciferase results showed that NRF1 transcriptionally regulated p65. Both male and female COPD rats showed an upregulated NRF1 level and similar pulmonary morphology. But NRF1 was further upregulated in male castrated rats. Further supplementing testosterone in castrated male rats significantly reduced NRF1, pulmonary lesions, and inflammation. Supplementation of testosterone also reduced the phosphorylation of p65 and IKKβ induced by LPS or CSE in L132 cells. Our results suggest that testosterone plays a protective role in pulmonary epithelial inflammation of COPD through inhibition of NRF1-derived NF-κB signaling and the phosphorylation of p65. | Xueting Wang Linlin Huang Shan Jiang Kang Cheng Dan Wang Qianqian Luo Xiaomei Wu Li Zhu | 2021 | Journal of Molecular Cell Biology2021，13，2： | 4 |
| 11 | Electrodeposition of calcium phosphate onto polyethylene terephthalate artificial ligament enhances graft-bone integration after anterior cruciate ligament reconstruction显示文摘It is a big challenge to develop a polyethylene terephthalate(PET)artificial ligament with excellent osteogenetic activity to enhance graft-bone integration for ligament reconstruction.Herein,we evaluated the effect of biomineralization(BM)and electrodeposition(ED)method for depositing calcium-phosphate(CaP)on the PET artificial ligament in vitro and in vivo.Scanning electron microscopy and energy-dispersive X-Ray spectrometer mapping analysis revealed that the ED-CaP had more uniform particles and element distribution(Ca,P and O),and thermogravimetric analysis showed there were more CaP on the PET/ED-CaP than the PET/BM-CaP scaffold.Moreover,the hydrophilicity of PET scaffolds was significantly improved after CaP deposition.In vitro study showed that CaP coating via BM or ED method could improve the attachment and proliferation of MC3T3-E1 cells,and ED-CaP coating significantly increased osteogenic differentiation of the cells,in which the Wnt/β-catenin signaling pathway might be involved.In addition,radiological,histological and immunohistochemical results of in vivo study in a rabbit anterior cruciate ligament(ACL)reconstruction model demonstrated that the PET/BM-CaP and PET/ED-CaP scaffolds significantly improved graft-bone integration process compared to the PET scaffold.More importantly,larger areas of new bone ingrowth and the formation of fibrocartilage tissue were observed at 12 weeks in the PET/ED-CaP group,and the biomechanical tests showed increased ultimate failure load and stiffness in PET/ED-CaP group compared to PET/BM-CaP and PET group.Therefore,ED of CaP is an effective strategy for the modification of PET artificial ligament and can enhance graft-bone integration both in vitro and in vivo. | Jiangyu Cai Qianqian Zhang Jiebo Chen Jia Jiang Xiumei Mo Chuanglong He Jinzhong Zhao | 2021 | Bioactive Materials2021，6，3： | 4 |
| 12 | Loss of Lkb1 impairs Treg function and stability to aggravate graft-versus-host disease after bone marrow transplantation显示文摘Accumulating evidence suggests that a reduction in the number of Foxp3^(+) regulatory T cells(Tregs)contributes to the pathogenesis of acute graft-versus-host disease(aGVHD),which is a major adverse complication that can occur after allogeneic hematopoietic stem cell transplantation(allo-HSCT).However,the precise features and mechanism underlying the defects in Tregs remain largely unknown.In this study,we demonstrated that Tregs were more dramatically decreased in bone marrow compared with those in peripheral blood from aGVHD patients and that bone marrow Treg defects were negatively associated with hematopoietic reconstitution.Tregs from aGVHD patients exhibited multiple defects,including the instability of Foxp3 expression,especially in response to IL-12,impaired suppressor function,decreased migratory capacity,and increased apoptosis.Transcriptional profiling revealed the downregulation of Lkb1,a previously identified critical regulator of murine Treg identity and metabolism,and murine Lkb1-regulated genes in Tregs from aGVHD patients.Foxp3 expression in human Tregs could be decreased and increased by the knockdown and overexpression of the Lkb1 gene,respectively.Furthermore,a loss-of-function assay in an aGVHD murine model confirmed that Lkb1 deficiency could impair Tregs and aggravate disease severity.These findings reveal that Lkb1 downregulation contributes to multiple defects in Tregs in human aGVHD and highlight the Lkb1-related pathways that could serve as therapeutic targets that may potentially be manipulated to mitigate aGVHD. | Xiuhua Su Qianqian Wang Wei Guo Xiaolei Pei Qing Niu Maolan Liu Yuanyuan Liu Song Chen Sizhou Feng Yi He Donglin Yang Rongli Zhang Qiaoling Ma Weihua Zhai Aiming Pang Jialin Wei Yong Huang Yuechen Luo Mingzhe Han Xiaoming Feng Erlie Jiang | 2020 | Cellular & Molecular Immunology2020，17，5： | 3 |
| 13 | Partitioning tree water usage into storage and transpiration in a mixed forest显示文摘Background:Water migration and use are important processes in trees.However,it is possible to overestimate transpiration by equating the water absorbed through the plant roots to that diffused back to the atmosphere through stomatal transpiration.Therefore,it is necessary to quantify the water transpired and stored in plants.Method:The δ^(2)H/δ^(18)O technique and heat ratio method were used to explore the water usage of coniferous and broad-leaved tree species,including the proportions of water used for transpiration and water storage.Results:Platycladus orientalis and Quercus variabilis had strong plasticity in their water usage from different sources.Platycladus orientalis primarily used groundwater(30.5%)and the 60-100-cm soil layer(21.6%)throughout the experimental period and was sensitive to precipitation,absorbing water from the 0-20-cm layer(26.6%)during the rainy season.Quercus variabilis absorbed water from all sources(15.7%-36.5%)except from the 40-60-cm soil layer during the dry season.In addition,it did not change its water source but increased its groundwater uptake during the rainy season.The annual mean water fluxes of P.orientalis and Q.variabilis were 374.69 and 469.50 mm·year−1,with 93.49% and 93.91% of the water used for transpiration,respectively.However,nocturnal sap flow in P.orientalis and Q.variabilis was mainly used for water storage in the trunk rather than transpiration,which effectively alleviated drought stress and facilitated the transport of nutrients.Conclusions:The water stored in both species comprised 6%-7% of the total water fluxes and,therefore,should be considered in water balance models. | Ziqiang Liu Qianqian Liu Zijun Wei Xinxiao Yu Guodong Jia Jiang Jiang | 2021 | Forest Ecosystems2021，8，4： | 2 |
| 14 | Targeting histones for degradation in cancer cells as a novel strategy in cancer treatment显示文摘The anticancer therapies with the joint treatment of a histone deacetylase(HDAC) inhibitor and a DNA-damaging approach are actively under clinical investigations, but the underlying mechanism is unclear. Histone homeostasis is critical to genome stability, transcriptional accuracy, DNA repair process, senescence, and survival. We have previously demonstrated that the HDAC inhibitor, trichostatin A(TSA), could promote the degradation of the core histones induced by γ-radiation or the DNAalkylating agent methyl methanesulfonate(MMS) in non-cancer cells, including mouse spermatocyte and embryonic fibroblast cell lines. In this study, we found that the joint treatment by TSA and MMS induced the death of the cultured cancer cells with an additive effect, but induced degradation of the core histones synergistically in these cells. We then analyzed various combinations of other HDAC inhibitors, including suberoylanilide hydroxamic acid and valproate sodium, with MMS or other DNAdamaging agents, including etoposide and camptothecin. Most of these combined treatments induced cell death additively, but all the tested combinations induced degradation of the core histones synergistically. Meanwhile, we showed that cell cycle arrest might not be a primary consequence for the joint treatment of TSA and MMS. Given that clinic treatments of cancers jointly with an HDAC inhibitor and a DNA-damaging approach often show synergistic effects, histone degradation might more accurately underlie the synergistic effects of these joint treatments in clinic applications than other parameters, such as cell death and cell cycle arrest. Thus, our studies might suggest that the degradation of the core histones can serve as a new target for the development of cancer therapies. | Yesheng Yin Qianqian Zhu Tianxia Jiang Libin Fan Xiaobo Qiu | 2019 | Science China(Life Sciences)2019，62，8： | 2 |
| 15 | Targeting macrophagic SHP2 for ameliorating osteoarthritis via TLR signaling显示文摘Osteoarthritis(OA),in which M1 macrophage polarization in the synovium exacerbates disease progression,is a major cause of cartilage degeneration and functional disabilities.Therapeutic strategies of OA designed to interfere with the polarization of macrophages have rarely been reported.Here,we report that SHP099,as an allosteric inhibitor of src-homology 2-containing protein tyrosine phosphatase 2(SHP2),attenuated osteoarthritis progression by inhibiting M1 macrophage polarization.We demonstrated that M1 macrophage polarization was accompanied by the overexpression of SHP2 in the synovial tissues of OA patients and OA model mice.Compared to wild-type(WT)mice,myeloid lineage conditional Shp2 knockout(c KO)mice showed decreased M1 macrophage polarization and attenuated severity of synovitis,an elevated expression of cartilage phenotype protein collagen II(COL2),and a decreased expression of cartilage degradation markers collagen X(COL10)and matrix metalloproteinase3(MMP3)in OA cartilage.Further mechanistic analysis showed that SHP099 inhibited lipopolysaccharide(LPS)-induced Toll-like receptor(TLR)signaling mediated by nuclear factor kappa B(NF-κB)and PI3K—AKT signaling.Moreover,intra-articular injection of SHP099 also significantly attenuated OA progression,including joint synovitis and cartilage damage.These results indicated that allosteric inhibition of SHP2 might be a promising therapeutic strategy for the treatment of OA. | Ziying Sun Qianqian Liu Zhongyang Lv Jiawei Li Xingquan Xu Heng Sun Maochun Wang Kuoyang Sun Tianshu Shi Zizheng Liu Guihua Tan Wenqiang Yan Rui Wu Yannick Xiaofan Yang Shiro Ikegawa Qing Jiang Yang Sun Dongquan Shi | 2022 | Acta Pharmaceutica Sinica B2022，12，7： | 2 |
| 16 | Numerical Study on the Leakage and Diffusion Characteristics of Low-Solubility and Low-Volatile Dangerous Chemicals from Ship in Inland Rivers显示文摘Considering the accidents of ships for dangerous chemicals transportation in inland rivers,a numerical method for the simulation of the leakage and diffusion processes of dangerous chemicals in inland rivers is proposed in this paper.Geographic information,such as rivers and buildings in the model,is obtained through Google Earth and structures of rivers and buildings are described by Auto CAD.In addition,the Fluent is adopted to simulate the leakage and diffusion processes of the dangerous chemicals where the standard k-εmodel is used to calculate the turbulent flow.Considering the interaction between chemicals and water,the VOF method is used to describe the leakage,drift and diffusion process of dangerous chemicals groups on the water surface.Taking a section of the Yangtze River as an example,the leakage and diffusion processes from a ship carrying 3,000 tons of low-solubility and low-volatile dangerous chemicals are studied,and the characteristics of leakage and diffusion are analyzed in detail.During the simulation,the area of the maximum group of leaked dangerous chemicals reaches up to about 1800 m2,and the number reaches up to 45.Furthermore,the influence of density,viscosity,water velocity and leakage velocity on the leakage and diffusion processes is investigated in this paper. | Shuifen Zhan Mingchao Wang Min Wang Qianqian Shao Zefang Zhang Wenxin Jiang Xuemin Chen | 2020 | Computer Modeling in Engineering & Sciences2020，，4： | 2 |
| 17 | A comb-gate silicon tunneling field effect transistor with improved on-state current显示文摘In this paper, a new tunneling field effect transistor with comb-shaped gate (CG-TFET) is proposed and experimentally demonstrated. Source implantation masked by the comb-shaped gate can result in combshaped channel region. With this comb-shaped gate configuration, increased tunneling area can be obtained and hence higher on-state current without area penalty. Moreover, an optimized CG-TFET with silicide source is fabricated to further improve the on-state current by introducing Schottky barrier tunneling current which is much more efficient than band-to-band tunneling. In addition, the electron barrier in the comb-shaped channel region is raised due to the self depleted effect, which can effectively suppress the Schottky injection leakage from the silicide source in the off-state. 1.5 orders of magnitude higher than conventional TFET with the same footprint on-state current and more than 106 on-off current ratio can be achieved. | ZHAN Zhan HUANG QianQian HUANG Ru JIANG WenZhe WANG YangYuan | 2013 | Science China(Information Sciences)2013，56，7： | 2 |
| 18 | Analysis and Evaluation of Bioavailable Heavy Metals in Surface Soil of the Abandoned Lead-zinc Mine in Changhua,Hainan Province显示文摘[Objectives] The research was conducted to study characteristics of bioavailable levels pollution of heavy metals in the surface soil of the lead-zinc mine in Changhua. [Methods] A total of 56 surface samples were collected from the 3 study zones( peripheral zone,reclamation zone and tailing zone) located at the lead-zine mine in Changhua. Based on total and bioavailable heavy metals( Pb,Zn,Cu and Cd) in soils,the correlation of total content with bioavailable content was analyzed,and their pollution characteristics were assessed by methods of single factor pollution index,Nemerow pollution index,geological accumulation index and potential ecological risk index. [Results]( i) The surface soils were polluted by Pb,Zn,Cu,Cd in different degrees,and the overall trend of the contents of the 4 heavy metals was in order of Cd > Pb > Zn > Cu. The average excess multiple of heavy metals of total and bioavailable content in soils were in the order of peripheral zone > tailing zone > reclaimed zone,and their pollution degrees were tailing zone > peripheral zone > reclaimed zone.( ii) In general,the total and bioavailable contents of Pb,Zn,Cu,Cd showed a significant correlation,but were not correlated in each study zone.( iii) Pollution degrees of the study zones were in the order of tailing zone > peripheral zone > reclamation zone. The pollutions of heavy metals Pb and Cd were more serious,especially Cd reached high levels of pollution degree,and the pollution degrees of Zn,Cu were lighter. Contributors of ecological risk were mainly Cd,Pb and Cu,and the contribution of Cd achieved more than 90 %,making it the main source of pollution. [Conclusions] The results not only revealed the pollution status of heavy metals in the surface soil of the abandoned coal mine,but also could provide scientific guidance for reasonable utilization and ecological recovery of the land. | Jianping YUAN Fangfang ZHENG Dan WU Tianhong YU Qianqian JIANG | 2018 | Agricultural Biotechnology2018，7，4： | 1 |
| 19 | Origins of black carbon from anthropogenic emissions and open biomass burning transported to Xishuangbanna, Southwest China显示文摘Black carbon(BC) has importance regarding aerosol composition, radiative balance, and human exposure. This study adopted a backward-trajectory approach to quantify the origins of BC from anthropogenic emissions(BCAn) and open biomass burning(BCBB) transported to Xishuangbanna in 2017. Haze months, between haze and clean months, and clean months in Xishuangbanna were defined according to daily PM_(2.5)concentrations of >75, 35–75, and<35 μg/m^(3), respectively. Results showed that the transport efficiency density(TED) of BC transported to Xishuangbanna was controlled by the prevailing winds in different seasons.The yearly contributions to the effective emission intensity of BCAnand BCBBtransported to Xishuangbanna were 52% and 48%, respectively. However, when haze occurred in Xishuangbanna, the average BCAnand BCBBcontributions were 23% and 77%, respectively. This suggests that open biomass burning(BB) becomes the dominant source in haze months. Myanmar, India, and Laos were the dominant source regions of BC transported to Xishuangbanna during haze months, accounting for 59%, 18%, and 13% of the total, respectively. Furthermore, India was identified as the most important source regions of BCAntransported to Xishuangbanna in haze months, accounting for 14%. The two countries making the greatest contributions to BCBBtransported to Xishuangbanna were Myanmar and Laos in haze months, accounting for 55% and 13%, respectively. BC emissions from Xishuangbanna had minimal effects on the results of the present study. It is suggested that open BB in Myanmar and Laos, and anthropogenic emissions in India were responsible for poor air quality in Xishuangbanna. | Xuyan Liu SiwenWang Qianqian Zhang Chunlai Jiang Linlin Liang Shihao Tang Xingying Zhang Xiuzhen Han Lin Zhu | 2023 | Journal of Environmental Sciences2023，，3： | 1 |
| 20 | Combustion characteristics of Indonesian oil sands 显示文摘 | Wang Qing Jia Chunxia Jiang Qianqian | 2012 | Fuel Processing Technology2012，99，： | 1 |
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