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29篇 您的检索式:作者名="JiLong Yang"
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1Long-term effects of gravel―sand mulch on soil organic carbon and nitrogen in the Loess Plateau of northwestern China显示文摘Gravel–sand mulch has been used for centuries to conserve water in the Loess Plateau of northwestern China. In this study, we assessed the influence of long-term(1996–2012) gravel–sand mulching of cultivated soils on total organic carbon(TOC), light fraction organic carbon(LFOC), microbial biomass carbon(MBC), total organic nitrogen(TON), particulate organic carbon(POC), mineral-associated organic carbon(MOC), permanganate-oxidizable carbon(KMn O4-C), and non-KMn O4-C at 0–60 cm depths. Mulching durations were 7, 11 and 16 years, with a non-mulched control. Compared to the control, there was no significant and consistently positive effect of the mulch on TOC, POC, MOC, KMn O4-C and non-KMn O4-C before 11 years of mulching, and these organic C fractions generally decreased significantly by 16 years. LFOC, TON and MBC to at a 0–20 cm depth increased with increasing mulching duration until 11 years, and then these fractions decreased significantly between 11 and 16 years, reaching values comparable to or lower than those in the control. KMn O4-C was most strongly correlated with the labile soil C fractions. Our findings suggest that although gravel–sand mulch may conserve soil moisture, it may also lead to long-term decreases in labile soil organic C fractions and total organic N in the study area. The addition of manure or composted manure would be a good choice to reverse the soil deterioration that occurs after 11 years by increasing the inputs of organic matter.Yang QIU ZhongKui XIE YaJun WANG Sukhdev S MALHI JiLong REN 2015Journal of Arid Land2015,7,1:7
2Roles of low?density lipoproteinreceptor?related protein 1 in tumors显示文摘Low-density lipoprotein receptor-related protein 1(LRP1,also known as CD91),a multifunctional endocytic and cell signaling receptor,is widely expressed on the surface of multiple cell types such as hepatocytes,fibroblasts,neurons,astrocytes,macrophages,smooth muscle cells,and malignant cells.Emerging in vitro and in vivo evidence demonstrates that LRP1 is critically involved in many processes that drive tumorigenesis and tumor progression.For example,LRP1 not only promotes tumor cell migration and invasion by regulating matrix metalloproteinase(MMP)-2and MMP-9 expression and functions but also inhibits cell apoptosis by regulating the insulin receptor,the serine/threonine protein kinase signaling pathway,and the expression of Caspase-3.LRPI-mediated phosphorylation of the extracellular signal-regulated kinase pathway and c-jun N-terminal kinase are also involved in tumor cell proliferation and invasion.In addition,LRP1 has been shown to be down-regulated by microRNA-205 and methylation of LRP1CpG islands.Furthermore,a novel fusion gene,LRP1-SNRNP25,promotes osteosarcoma cell invasion and migration.Only by understanding the mechanisms of these effects can we develop novel diagnostic and therapeutic strategies for cancers mediated by LRP1.Peipei Xing Zhichao Liao Zhiwu Ren Jun Zhao Fengju Song Guowen Wang Kexin Chen Jilong Yang 2016Chinese Journal of Cancer2016,35,1:4
3Effect of silicon precursor on silicon incorporation in SAPO-11 and their catalytic performance for hydroisomerization of n-octane on Pt-based catalysts显示文摘SAPO-11 molecular sieves were synthesized using silica sol, hydrophilic fumed silica, and tetraethyl orthosilicate(TEOS) as silicon precursors. Their physicochemical properties were characterized using XRD,SEM, nitrogen adsorption-desorption, Py-IR, NH_3-TPD, EDS, and ^(27)Al,^(31)P,^(29)Si MAS NMR techniques. The catalytic performance was assessed in the hydroisomerization of n-octane. The results showed that the silicon precursors influenced the physicochemical properties and catalytic performance of SAPO-11. SAPO-11 synthesized using hydrophilic fumed silica as silicon precursor showed higher silicon distribution and had more medium acid sites. SAPO-11 synthesized using TEOS as silicon precursor had more silicon content, but more silicon islands formed in its framework. The depolymerization of silicon precursors might affect the silicon content and distribution in SAPO-11. In the hydroisomerization of n-octane, the catalytic activity strongly depended on the number of medium acid sites instead of the number of total acid sites.SAPO-11 synthesized using hydrophilic fumed silica as silicon precursor exhibited higher catalytic activity than the other samples because it has more medium acid sites.Zhichao Yang Jilong Li Yunqi Liu Chenguang Liu 2017Journal of Energy Chemistry2017,26,4:3
4Origin and evolution of ore-forming fluid for the Gaosongshan gold deposit, Lesser Xing’an Range:Evidence from fluid inclusions,H-O-S-Pb isotopes显示文摘Epithermal gold deposits are typical precious metal deposits related to volcanic and subvolcanic magmatism.Due to the lack of direct geological and petrographic evidences,the origin of the ore-forming fluid is deduced from the spatial diagenesis-mineralization relationship,chronological data,physicochemical characteristics of mineral fluid inclusions,mineral or rock elements and isotopic geochemical characteristics.By objectively examining this scientific problem via a geological field survey and petrographic analysis of the Gaosongshan epithermal gold deposit,we recently discovered and verified the following points:(1) Pyrite-bearing spherical quartz aggregates (PSQA) occur in the rhyolitic porphyry;(2) the mineralization is structurally dominated by WNW- and ENE-trending systems and occurs mostly in hydrothermal breccias and pyrite-quartz veins,and the ore types are mainly hematite-crusted quartz,hydrothermal breccia,massive pyrite-quartz,etc.;(3) the alteration types consist of prevalent silicification,sericitization,propylitization and carbonation,with local adularization and illitization.The ore minerals are mainly pyrite,primary hematite,native gold,and electrum,with lesser amounts of chalcopyrite,magnetite,sphalerite,and galena,indicating a characteristic epithermal low-sulfidation deposit.The ore-forming fluid may have been primarily derived from magmatic fluid exsolved from a crystallizing rhyolitic porphyry magma.Further zircon U-Pb geochronology,fluid inclusion,physicochemical and isotopic geochemical analyses revealed that (1) rhyolitic porphyry magmatism occurred at 104.6 ± 1.0 Ma,whereas the crystallization of the PSQA occurred at 100.8 ± 2.1 Ma;(2) the hydrothermal fluid of the pre-ore stage was an exsolved CO2-bearing H2O-NaCl magmatic fluid that produced inclusions mainly composed of pure vapor (PV),vapor-rich (WV) and liquid-rich (WL) inclusions with a small number of melt-(M) and solid-bearing (S) inclusions;mineralization-stage quartz contains WL and rare PV,WV and pure liquid (PL) inclusions characterized by the H2O-NaCl system with low formation temperatures and low salinities;(3) the characteristics of hydrogen,oxygen,sulfur,and lead isotopes and those of rare earth elements (REEs) provide insight into the affinity between PSQA and orebodies resulting from juvenile crust or enriched mantle.Combined with previous research on the mineralogenetic epoch (99.32 ± 0.01 Ma),we further confirm that the mineralization of the deposit occurred in the late Early Cretaceous,which coincides with the extension of the continental margin induced by subduction of the Pacific Plate beneath the Eurasian Plate.The formation of the ore deposit was proceeded by a series of magmatic and hydrothermal events,including melting of enriched juvenile crust,upwelling,the eruption and emplacement of the rhyolitic magma,the exsolution and accumulation of magmatic hydrothermal fluid,decompression,the cooling and immiscibility/boiling of the fluid,and mixing of the magmatic fluid with meteoric water,in association with water-rock interaction.Yang Liu Jinggui Sun Jilong Han Liang Ren Alei Gu Keqiang Zhao Changshen Wang 2019Geoscience Frontiers2019,10,5:3
5Chondroblastoma in the long bone diaphysis:a report of two cases with literature review显示文摘To investigate the clinical characteristics of chondroblastoma with an emphasis on lesions located in the long bone diaphysis,we reviewed the clinical data of 7 patients with histologically proven chondroblastoma treated in Tianjin Medical University Cancer Hospital and Fudan University Cancer Hospital between January 1995 and May 2009.There were two rare cases of chondroblastoma in the long bone diaphysis.One patient with a lesion in the tibial diaphysis underwent intralesional curettage and bone grafting,and the postoperative bone function was measured as excellent according to the Enneking scoring system.The patient was still alive upon follow-up at 60 months.The other patient with a lesion in the humeral diaphysis underwent resection,and the postoperative bone function was excellent at 48 months,at which there was no evidence of recurrence or metastasis.Thus,except for the distinctive site of the long bone diaphysis,which made diagnosis difficult,the patients' ages,symptoms,X-ray and CT images,treatment,and prognosis were in accordance with typical lesions in the epiphysis and metaphysis.The diagnosis of chondroblastoma in the long bone diaphysis significantly depends on histopathologic characteristics.Jilong Yang Wei Tian Xiongzeng Zhu Jian Wang 2012Chinese Journal of Cancer2012,31,5:3
6The prognostic significance of non-sentinel lymph node metastasis in cutaneous and acral melanoma patients—A multicenter retrospective study显示文摘Background:Whether non-sentinel lymph node(SLN)-positive melanoma patients can benefit from completion lymph node dissection(CLND)is still unclear.The current study was performed to identify the prognostic role of nonSLN status in SLN-positive melanoma and to investigate the predictive factors of non-SLN metastasis in acral and cutaneous melanoma patients.Methods:The records of 328 SLN-positive melanoma patients who underwent radical surgery at four cancer centers from September 2009 to August 2017 were reviewed.Clinicopathological data including age,gender,Clark level,Breslow index,ulceration,the number of positive SLNs,non-SLN status,and adjuvant therapy were included for survival analyses.Patients were followed up until death or June 30,2019.Multivariable logistic regression modeling was performed to identify factors associated with non-SLN positivity.Log-rank analysis and Cox regression analysis were used to identify the prognostic factors for disease-free survival(DFS)and overall survival(OS).Results:Among all enrolled patients,220(67.1%)had acral melanoma and 108(32.9%)had cutaneous melanoma.The 5-year DFS and OS rate of the entire cohort was 31.5%and 54.1%,respectively.More than 1 positive SLNs were found in 123(37.5%)patients.Positive non-SLNs were found in 99(30.2%)patients.Patients with positive non-SLNs had significantly worse DFS and OS(log-rank P<0.001).Non-SLN status(P=0.003),number of positive SLNs(P=0.016),and adjuvant therapy(P=0.025)were independent prognostic factors for DFS,while non-SLN status(P=0.002),the Breslow index(P=0.027),Clark level(P=0.006),ulceration(P=0.004),number of positive SLNs(P=0.001),and adjuvant therapy(P=0.007)were independent prognostic factors for OS.The Breslow index(P=0.020),Clark level(P=0.012),and number of positive SLNs(P=0.031)were independently related to positive non-SLNs and could be used to develop more personalized surgical strategy.Conclusions:Non-SLN-positive melanoma patients had worse DFS and OS even after immediate CLND than those with non-SLN-negative melanoma.The Breslow index,Clark level,and number of positive SLNs were independent predictive factors for non-SLN status.Wei Sun Yu Xu JiLong Yang ZhiChao Liao Tao Li Kai Huang Poulam Patel WangJun Yan Yong Chen 2020Cancer Communications2020,40,11:2
7Clinicopathological features of pseudomyogenic hemangioendothelioma and precision therapy based on whole exome sequencing显示文摘Dear Editor Pseudomyogenic hemangioendothelioma(PHE)is a newly recognized subtype of hemangioendothelioma characterized by the presence of fibrohistiocytic and myoid cells arranged in a fibroma-like or dermatofibroma-like pattern[1].This rare type of tumor was first named by Hornick and Fletcher[2]and categorized as the novel soft tissue tumor classification system of the World Health Organization in 2013[3].Prior to this,it was referred to as fibroma-like variant of epithelioid sarcoma(ES)and epithelioid sarcoma-like hemangioendothelioma[4].Junqiang Wei Zhichao Liao Gang Zhao Nazmun Nahar Chao Zhang Jia Lu Yun Yang Jilong Yang 2020Cancer Communications2020,40,4:2
8DAMAGE TOLERANCE ANALYSIS ON HOLLOW AXLES OF HIGH SPEED MOTOR TRAINS显示文摘According to the rules of UIC515-3,the service loads of the axles arc defined,which include some different loads cases as follows:the static loads;the impact loads resulted from running through the rail joints and unevenness rails;the loads through curves and fi'om braking.Through the calculating and analysis,the stress distribution of the hollow axles is obtained for 200 km/h high speed motor trains used in China.At the same time,the fatigue crack growth of hollow axles is studied,and the initial surface cracks of 2 mm depth caused by hard objects strike or the other causes are discussed.On the basis of the linear elastic fracture mechanics theory,the stress intensity factor of the crack of the geometry transition outside the wheel scat is also studied.Associated with fatigue crack propagation equation and the corresponding crack propagation threshold,the crack propagation characteristics under different shapes are calculated.Then the running distances arc educed with different shapes propagating to the critical length,and the estimation of the residual lives about hollow axles which are the reference values of examine and repair limit of the hollow axle is given.ZHOU Suxia XIE Jilong YANG Guangxue XIAO Nan 2008Chinese Journal of Mechanical Engineering2008,21,5:2
9Acidity-triggered TAT-presenting nanocarriers augment tumor retention and nuclear translocation of drugs显示文摘Wei Jiang Jilong Wang Jinbin Yang Zhiwei He Zhenhui Hou Yingli Luo Li Wang Jing Liu Houbing Zhang Yangyang Zhao Guoqing Zhang Fang Huang Xuechang Zhou Lifeng Yan Xianzhu Yang Yucai Wang Jun Wang 2018Nano Research2018,11,10:2
10Timing of uplift and evolution of the Lüliang Mountains,North China Craton显示文摘This study analyses evidence for reformed basin development and basin-mountain coupling associated with development of the Ordos Basin and the Lüliang Mountains, China. Gaining an improved understanding of the timing and nature of uplift and evolution of the Lüliang Mountains is important for the reconstruction of the eastern sedimentary boundary of the Ordos Basin(a major petroliferous basin) as well as for providing insight into the evolution and breakup of the North China Craton(NCC). Based on systematic sampling for fission track analysis, it is suggested that the main phase of uplift of the Lüliang Mountains occurred since later part of the Early Cretaceous. Three evolutionary stages of uplift and development are identified: slow initial uplift(120–65 Ma), accelerated uplift(65–23 Ma), and intensive uplift(23 Ma to present), with the majority of the uplift activity having occurred during the Cenozoic. The history of uplift is non-equilibrium and exhibits complexity in temporal and spatial aspects. The middle and northern parts of the Lüliang Mountains were uplifted earlier than the southern part. The most intensive episode of uplift activity commenced in the Miocene and was associated with a genetic coupling relationship with the eastern neighboring Cenozoic Shanxi Grabens. The uplifting and evolutionary processes of the Lüliang Mountains area since later part of the Early Cretaceous share a unified regional geodynamic setting, which was accompanied by uplift of the Mesozoic Ordos Basin and development of the neighboring Cenozoic Shanxi Grabens. Collectively, this regional orogenic activity is related principally to the far-field effects of both the compression sourced from the southwestern Tibet Plateau and westward subduction of the Pacific Plate in Cenozoic.ZHAO JunFeng LIU ChiYang Nigel MOUNTNEY LU JianJun CAO JiLong YANG Yao XUE Rui 2016Science China Earth Sciences2016,59,1:2
11Genetic aberrations in soft tissue leiomyosarcoma 显示文摘Yang Jilong Du X Chen K 2009Cancer Letters2009,275,:1
12Exploration of the potential application of plutonium isotopes in source identification of sandstorm in the atmosphere of Beijing显示文摘Plutonium(Pu)is an anthropogenic radionuclide which mainly derived from atmospheric nuclear tests in the environment.In this study,the Pu isotopes(^(239)Pu and^(240)Pu)in aerosol samples collected during the sandstorm and non-sandstorm period were measured by accelerator mass spectrometry(AMS)and the behavior of Pu was studied.The activity concentrations of ^(239)Pu and ^(240)Pu in the aerosol samples of Beijing were ranged from 0.62 nB q/m^(3)to 99.6 n Bq/m^(3)for ^(239)Pu and 3.51 nBq/m^(3)to 60.23 n Bq/m^(3)for ^(240)Pu,respectively.^(239)Pu and ^(240)Pu concentrations exhibited a remarkable seasonal variation trend,with the higher results showed in spring,and the relatively lower concentrations in winter.The observed higher concentration of^(239)Pu and^(240)Pu detected in sandstorm samples further indicated Pu was closely related to the occurrence of sandstorms.The global fallout characteristics of^(240)Pu/^(239)Pu atom ratios(average0.20,ranging from 0.16 to 0.27)in aerosol samples indicating that global fallout was the major source of Pu in the atmosphere.Using aluminum(Al)as an indicator of soil resuspension,significant positive correlation between^(239)Pu and Al(r^(2)=0.934),240Pu and Al(^(r)2=0.525)revealed that soil resuspension was a primary source of atmospheric Pu in Beijing.These results implied that the combination of^(239)Pu,^(240)Pu and Al could be used as the potential tracer of sandstorm.Jie Ouyang Yang Shao Min Luo Jilong Zhang Xiongxin Dai Lingling Ma Diandou Xu 2022Chinese Chemical Letters2022,33,7:1
13Effects of Si addition on microstructure and mechanical properties of Mg–8Gd–4Y–Nd–Zr alloy显示文摘Xinming Zhang Jilong Hu Lingying Ye Yunlai Deng Changping Tang Liu Yang Zhaoyang Liu 2013Materials and Design2013,,:1
14An Analytical Dislocation Mutipile up Model for the Yield Stress of Fully Lamellar TiAl Alloys显示文摘 Hu Gengkai Su Jilong 2003Model Simu Mater Sci Eng2003,11,:1
15A Novel Customer-Oriented Recommendation System for Paid Knowledge Products显示文摘With the rapid development of knowledge pal malto:wangliye@cuc.edu.cn with a large number of knowledge products when purchasing,leading to the need for an effective recommendation system.However,existing recommendation systems cannot accurately and adequately represent paid knowledge products with implicit but specialized features and sparse interactive histories,and thus are deemed not suitable for such products.In this paper,we propose a novel recommendation system for knowledge products,the core of which is the designed customer oriented representation of knowledge products.Specifically,we utilize customer activity information on the free knowledge sharing platform as the knowl-edge document for each customer of paid knowledge products,to extract customer knowledge background and preference.Then,a deep learning based model Doc2vec is adopted to transfer knowledge documents to customer knowledge background vectors.Such vectors of a particular paid knowledge product are further aggregated to a product-level vector for customer-oriented product representation,based on which two recommendation results are generated with product ratings and similarities of paid knowledge prod-ucts,respectively.Extensive comparative experiments are conducted to demonstrate the ffectiveness of the proposed system for the representation and recommendation of paid knowledge products.This paper will contribute to the literature of knowledge payment and recommendation systems,as well as provide practical implications for the information service and the operation of knowledge products on knowledge payment platforms.Ting Yang Jilong Zhang Liye Wang Jin Zhang 2022Journal of Systems Science and Systems Engineering2022,31,5:1
16Some results related to a conjecture of R Bruek显示文摘ZHANG Jilong YANG Lianzhong 2007J Inequal Pure Appl Math2007,8,1:1
17Evidence of return of chum salmon released from Tangwang River by strontium marking method显示文摘In order to assess the effect of enhancement release of chum salmon(Oncorhynchus keta),otolith strontium(Sr)marking method was used to tag chum salmon released in Tangwang River in 2016.The homing chum salmon were detected and the samples were collected in Tangwang River,Ussuri River and Suifen River in the autumn of2018.The samples were analyzed by examining Sr and calcium(Ca)fingerprints in the otolith using electron probe microanalysis.The results suggested that two samples collected in Tangwang River had the marking ring near the core of otolith where the Sr concentration and Sr/Ca ratio were significantly higher than comparative samples.Proving that the two fish belonged to the released population in Tangwang River in 2016.This article indicated the success of the enhancement release of chum salmon from the Tangwang River for the first time and also confirmed the validity of Sr marking in enhancement release of fishes.Jilong Wang Wei Liu Peilun Li Fujiang Tang Wanqiao Lu Jian Yang Tao Jiang 2021Acta Oceanologica Sinica2021,40,8:1
18Geological,Fluid Inclusion,H-O-S-Pb Isotope Constraints on the Genesis of the Erdaogou Gold Deposit,Liaoning Province显示文摘The Erdaogou gold deposit is located in the conjuncture of North China Carton and Xingmeng orogenic belt.The ore-forming process of Erdaogou gold deposit is divided into three stages(ⅠtoⅢ),which are quartz-pyrite stage(stage I),quartz-polymetallic sulfide stage(stage II)and quartz-calcite stage(stage III).Two types of fluid inclusions is distinguished in the ore-forming stage,i.e.,aqueous type(W-type)and aqueous-carbonic type(C-type)inclusions.From the stageⅠtoⅢ,the homogenization temperature of fluid inclusions are respectively 334-395,214-364 and 172-272℃,with salinities of 7.72 wt.%-11.23 wt.%NaCl equiv.,0.20 wt.%-23.18 wt.%NaCl equiv.,and 0.35 wt.%to 5.25 wt.%NaCl equiv.The ore-forming fluids of the Erdaogou deposit have the characteristics of medium-low temperatures,moderate salinities and low densities.And the fluids belong to the CO,-H2O-NaCl system.The values ofδ34SV-CDT in sulphide samples at different stages(stages I to III)are between-2.2‰ to 2.3‰,indicating sulfur source from magma volatiles or subvolcanic rock leaching.The lead isotopes suggest that ore-forming metals may be derived from a mixture of lower crust and mantle materials.Oxygen and hydrogen isotope data at Erdaogou indicate that magmatic fluid and meteoric water may both be involved in the hydrothermal system.Based on the geological characteris-tics,fluid inclusion results,stable and radiogenic isotope results of Erdaogou gold deposit,we believe that the temperature decrease,fluid boiling are the key factors leading to the ore precipitation and the genetic type of Erdaogou gold deposit is low-sulfidation epithermal deposit.Fan Yang Xuejiao Pang Bin Li Jingsheng Chen Jilong Han Miao Liu zhongzhu Yang Yan Wang Yi Shi 2021Journal of Earth Science2021,32,1:1
19New molecular insights into osteosarcoma targeted therapy显示文摘Jilong Yang Wei Zhang 2013Current Opinion in Oncology2013,,4:1
20Risk Identification and Protection during High-Risk Forensic Autopsy显示文摘'High-risk'autopsies are those in which the anatomical examination of a corpse entails a substantial risk of contracting a serious infectious disease.Herein,we discuss the risks of infection associated with high-risk autopsies and factors pertaining to risk identification in high-risk autopsies,and we suggest potentially preventative measures focused on anatomy room protection and virtual imaging.Xia Liu Jilong Zheng Shengjie Yang Cunrui Wei Xuesong Feng 2020Journal of Forensic Science and Medicine2020,6,2:0
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