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| 1 | Potential Role of Feldspathic Sandstone as a Natural Water Retaining Agent in Mu Us Sandy Land,Northwest China显示文摘This paper analyzed the water-retention mechanism of feldspathic sandstone(fine-(<1 mm diam.)and gravel-sized(2-3 cm diam.)in Mu Us Sandy Land,Northwest China.The objective of this study is to study the effect of feldspathic sandstone amendment on water retention in sandy land.The results showed that as the proportion of fine feldspathic sandstone in the sandy land soil increased,the soil texture changed from sand to silt loam,the capillary porosity gradually increased from 26.3%to 44.9%,and the soil saturated hydraulic conductivity decreased from 7.10 mm/min to 0.07 mm/min.Feldspathic sandstone gravel formed micro-reservoirs in the sandy land soil,playing the role of a′water absorbent′and′water retaining agent′in sandy land.Amendment with feldspathic sandstone can increase water retention in the arable layer of sandy land by 67%.This study provides a theoretical basis for the amelioration of sandy land on a large scale.It can be concluded that amendment with feldspathic sandstone can improve the physical properties of sandy land soil and increase soil water retention. | HAN Jichang XIE Jiancang ZHANG Yang | 2012 | Chinese Geographical Science2012,22,5: | 52 |
| 2 | Sand stabilization effect of feldspathic sandstone during the fallow period in Mu Us Sandy Land显示文摘在种亩的庄稼以后取决于地面雪状况,土壤潮湿损失速度和土壤结构的分析我们在休闲时期与长石的沙岩补救的沙的土地,与沙混合的长石的沙岩在亩的统治改进了沙稳定,这被结束我们在休闲时期的沙的土地。与长石的沙岩补救的沙的陆地有大雪范围,比正常高的 25%75% 沙;土壤潮湿损失慢下来,并且潮湿内容到超过 3 次升起了;土壤结构被改进了,并且水马厩总数内容由 6.52%18.04% 增加了;保护森林的幸存率增加了到 85% ;并且地面平坦是不到 1% 。削弱的沙升起亩调节的上述条件我们在休闲时期的沙的土地并且形成了雪的二保护的层盖住并且在冷天气下面玷污冻结的层以便对风侵蚀阻止。 | HAN Jichang | 2015 | Journal of Geographical Sciences2015,25,4: | 20 |
| 3 | A Sand Control and Development Model in Sandy Land Based on Mixed Experiments of Arsenic Sandstone and Sand: A Case Study in Mu Us Sandy Land in China显示文摘Serious desertification caused by human activity and climate change,in addition to water loss and soil erosion related to arsenic sandstone in the Mu Us Sandy Land,lead to severe scarcity of soil and water resources,which causes worse local agricultural conditions accordingly.Many physical properties of arsenic sandstone is complementary with that of sand,arsenic sandstone is therefore supposed to be blended to enhance water productivity and arability of sandy land.Container experiments are carried out to study the enhancement of water holding capacity of the mixture,the blending ratio of arsenic sandstone and sand,and the proper size of the arsenic sandstone particles,respectively.The results of the experiments show that particle size of 4 cm with a ratio of 1∶2 between arsenic sandstone and sand are the proper parameters on blending.Both water content and fertility increase after blending.Water use efficiency in the mixture is 2.7 times higher than that in sand by the water release curves from experiments.Therefore,a new sand control and development model,including arsenic sandstone blending with sand,efficient water irrigation management and reasonable farming system,is put forward to control and develop sandy land so that water-saving agriculture could be developed.Demonstration of potato planting about 153.1 ha in area in the Mu Us Sandy Land in China indicates that water consumption is 3018 m3/ha in the whole growth period.It means that about 61%of irrigation water can be saved compared with water use in coarse sand without treatment.Recycle economic mode and positive feedback of sand resource-crop planting-soil resource are constructed,which changes sand into arable soil and make it possible to develop water-saving agriculture on it.The proposed model will be helpful for soil-water resources utilization and management in the Mu Us Sandy Land. | WANG Ni XIE Jiancang HAN Jichang | 2013 | Chinese Geographical Science2013,23,6: | 13 |
| 4 | CCL5 deficiency promotes liver repair by improving inflammation resolution and liver regeneration through M2 macrophage polarization显示文摘Despite the diverse etiologies of drug-induced liver injury(DILI),innate immunity activation is a common feature involved in DILI progression.However,the involvement of innate immunity regulation in inflammation resolution and liver regeneration in DILI remains obscure.Herein,we identified the chemokine CCL5 as a central mediator of innate immunity regulation in the pathogenesis of DILI.First,we showed that serum and hepatic CCL5 levels are elevated in both DILI patients and an APAP-induced liver injury(AILI)mouse model.Interestingly,both nonparenchymal cells and stressed hepatocytes are cell sources of CCL5 induction in response to liver injury.Functional experiments showed that CCL5 deficiency has no effect on the early phase of AILI but promotes liver repair in the late phase mainly by promoting inflammation resolution and liver regeneration,which are associated with an increased number of hepatic M2 macrophages.Mechanistically,CCL5 can directly activate M1 polarization and impede M2 polarization through the CCR1-and CCR5-mediated activation of the MAPK and NF-κB pathways.We then showed that CCL5 inhibition mediated by either a CCL5-neutralizing antibody or the antagonist Met-CCL5 can greatly alleviate liver injury and improve survival in an AILI mouse model.Our data demonstrate CCL5 induction during DILI,identify CCL5 as a novel innate immunity regulator in macrophage polarization,and suggest that CCL5 blockage is a promising therapeutic strategy for the treatment of DILI. | Meng Li Xuehua Sun Jie Zhao Lei Xia Jichang Li Min Xu Bingrui Wang Han Guo Chang Yu Yueqiu Gao Hailong Wu Xiaoni Kong Qiang Xia | 2020 | Cellular & Molecular Immunology2020,17,7: | 13 |
| 5 | COORDINATING PRODUCTION AND RECYCLING DECISIONS WITH STOCHASTIC DEMAND AND RETUR显示文摘In this paper, the joint production and recycling problem is investigated for a hybrid manufacturing and remanufacturing system where brand-new products are produced in the manufacturing plant and recycled products are remanufactured into as-new products in the remanufacturing facility. Both the brand-new products and remanufactured products are used to satisfy customer demands. Returns of used products that are recycled from customers are assumed to be stochastic and nonlinearly price-dependent. A mathematical model is proposed to maximize the overall profit of the system through simultaneously optimizing the production and recycling decisions, subject to two capacity constraints ? the manufacturing capacity and the remanufacturing capacity. Based on Lagrangian relaxation method, subgradient algorithm and heuristic algorithm, a solution approach is developed to solve the problem. A representative example is presented to illustrate the system, and managerial analysis indicates that the uncertainties in demand and return have much influence on the production and recycling policy. In addition, twenty randomly produced examples are solved, and computational results show that the solution approach can obtain very good solutions for all examples in reasonable time. | Jianmai SHI Guoqing ZHANG Jichang SHA Saman Hassanzadeh AMIN | 2010 | Journal of Systems Science and Systems Engineering2010,19,4: | 10 |
| 6 | 基于状态图的对象行为建模显示文摘状态图(State Chart)是对对象的行为的一种描述的方法,并是UML(Unified ModelingLanguage)可视化建模的一部分.文中分析了状态图建模的规则,以及如何用状态图对对象的行为进行建模的方法. | 刘忠 邓苏 沙基昌 张维明 LIU Zhong DENG Su Sha Jichang ZHANG Weiming | 2001 | 计算机工程与设计2001,22,2: | 9 |
| 7 | Research on Optimized Utilization of Naphtha Resources Based on Adsorptive Separation with Zeolite显示文摘By means of molecular scale management, the technology of separating normal paraffins from naphtha through adsorption using 5A molecular sieves was studied with the purpose of optimizing the utilization of naphtha. The raw materials used in steam cracking and catalytic reforming processes could be allocated properly. During the adsorption process, the separation efficiency of the normal paraffins was above 99.9% with the purity of normal paraffins in the desorption oil exceeding 98.2%. With the use of the desorption oil as the feedstock of steam cracking, the ethylene yield increased from 29.7%-35.0% to 41.4%- 49.2% compared to that of the naphtha in the existing plant under similar operation conditions. The potential aromatic content of the raffinate oil rose from 30.6% to 43.5% compared to that in naphtha. The research octane number of the raffinate oil reached more than 85 with an increase of 20 units compared to that of naphtha, so the raffinate oil is more suitable for use as a blending component for high-octane clean gasoline. | Shen Benxian Liu Jichang, Wang Zhenxian (Petroleum Processing Research Center, East China University of Science and Technology, Shanghai 200237) | 2005 | China Petroleum Processing & Petrochemical Technology2005,7,1: | 8 |
| 8 | Simultaneous Removal of H_2S and Organosulfur Compounds from Liquefied Petroleum Gas Using Formulated Solvents: Solubility Parameter Investigation and Industrial Test显示文摘The performance of four formulated solvents(labeled as UDS-I, UDS-II, UDS-III, and UDS-IV) for removing methyl mercaptan from liquefied petroleum gas was predicted based on a two-dimensional solubility parameter theory. The calculation results show that UDS-IV has the closest solubility parameter to that of methyl mercaptan as compared with other tested solvents, indicating the strongest affinity and the highest solubility for methyl mercaptan. The industrial tests at a plant for desulfurization of LPG produced from the delayed coker have shown that the UDS solvents have the excellent performance for removal of organosulfur compounds(mainly methyl mercaptan). Although the sulfur loading dramatically increases, the total sulfur content of LPG treated with UDS-IV can be reduced by about 50% in comparison with N-methyl diethanolamine. In addition, UDS-IV has superior regeneration performance and selectivity for sulfur compounds over hydrocarbons. The industrial test and the solubility parameter calculation results are in good agreement with each other. | Zhang Feng Shen Benxian Sun Hui Liu Jichang Shang Jianfeng | 2015 | China Petroleum Processing & Petrochemical Technology2015,17,1: | 6 |
| 9 | Rheological properties and viscosity reduction of South China Sea crude oil显示文摘The rheological properties of South China Sea(SCS) crude oil were studied. A group of synthetic long-chain polymers, including octadecyl acrylate-maleic anhydride bidodecyl amide copolymer(VR-D),octadecyl acrylate-maleic anhydride bioctadecyl amide copolymer(VR-O) and octadecyl acrylate-maleic anhydride phenly amide copolymer(VR-A), were employed to serve as viscosity reducers(VRs). Their performance was evaluated by both experimental and computational methodologies. The results suggest that the SCS crude oil has low wax content yet high resin and asphaltene contents, which lead to high viscosity through formation of association structures. Additionally, the SCS crude oil appears to be a pseudoplastic fluid showing linear shear stress-shear rate dependence at low temperature. Interestingly, it gradually evolves into a Newtonian fluid with exponential relationship between shear stress and shear rate at higher temperature. Synthetic VRs demonstrate desirable and effective performance on improvement of the rheological properties of SCS crude oil. Upon the introduction of 1000 ppm VR-O,which is synthesized by using octadecylamine in the aminolysis reaction, the viscosity of SCS crude oil is decreased by 44.2% at 15 °C and 40.2% at 40 °C. The computational study suggests significant energy level increase and shear stress decrease for VR-containing crude oil systems. | Hui Sun Xingxing Lei Benxian Shen Huiran Zhang Jichang Liu Gengnan Li Di Wu | 2018 | Journal of Energy Chemistry2018,27,4: | 5 |
| 10 | Baicalin inhibits colistin sulfate-induced apoptosis of PC12 cells显示文摘Baicalin,a type of flavonoid extracted from the dried root of Scutellaria baicalensis georgi,has been shown to effectively inhibit cell apoptosis.Therefore,we assumed that baicalin would suppress colistin sulfate-induced neuronal apoptosis.PC12 cells exposed to colistin sulfate(62.5–500μg/mL)for 24 hours resulted in PC12 cell apoptosis.In addition,caspase-3 activity,lactate dehydrogenase level and free radical content increased in a dose-dependent manner.Subsequently,PC12 cells were pretreated with baicalin(25,50 and 100μg/mL),and exposed to 125μg/mL colistin sulfate.Cell morphology markedly changed,and cell viability increased.Moreover,caspase-3 activity,lactate dehydrogenase level and free radical content decreased.Results indicated that baicalin inhibited colistin sulfate-induced PC12 cell apoptosis by suppressing free radical injury,and reducing caspase-3 activity and lactate dehydrogenase activity. | Hong Jiang Pengfei Lv Jichang Li Hongjun Wang Tiezhong Zhou Yingzi Liu Wei Lin | 2013 | Neural Regeneration Research2013,8,28: | 4 |
| 11 | Idealized Experiments for Optimizing Model Parameters Using a 4D-Variational Method in an Intermediate Coupled Model of ENSO显示文摘Large biases exist in real-time ENSO prediction, which can be attributed to uncertainties in initial conditions and model parameters. Previously, a 4 D variational(4 D-Var) data assimilation system was developed for an intermediate coupled model(ICM) and used to improve ENSO modeling through optimized initial conditions. In this paper, this system is further applied to optimize model parameters. In the ICM used, one important process for ENSO is related to the anomalous temperature of subsurface water entrained into the mixed layer(T_e), which is empirically and explicitly related to sea level(SL) variation.The strength of the thermocline effect on SST(referred to simply as 'the thermocline effect') is represented by an introduced parameter, αT_e. A numerical procedure is developed to optimize this model parameter through the 4 D-Var assimilation of SST data in a twin experiment context with an idealized setting. Experiments having their initial condition optimized only,and having their initial condition plus this additional model parameter optimized, are compared. It is shown that ENSO evolution can be more effectively recovered by including the additional optimization of this parameter in ENSO modeling.The demonstrated feasibility of optimizing model parameters and initial conditions together through the 4 D-Var method provides a modeling platform for ENSO studies. Further applications of the 4 D-Var data assimilation system implemented in the ICM are also discussed. | Chuan GAO Rong-Hua ZHANG Xinrong WU Jichang SUN | 2018 | Advances in Atmospheric Sciences2018,35,4: | 4 |
| 12 | In vitro Inhibitory Activity of Shisandra chinensis and Polygonatum sibiricum against Vibrio harveyi and Its Biofilms显示文摘[Objective] This study aimed to analyze the in vitro inhibitory activity of Shisandra chinensis and Polygonatum sibiricum against Vibrio harveyi and its biofilms. [Result] By agar diffusion test,in vitro inhibitory activity of S.chinensis and P. sibiricum against V. harveyi was investigated. The minimal inhibitory concentration(MIC) a nd minimal bactericidal concentration(MBC) of S.chinensis and P.sibiricum against V.harveyi were determined by doubling dilution method. The inhibitory activity of S. chinensis and P.sibiricum on the formation of V.harveyi biofilms was evaluated by modified MTT assay. [Result]Both S.chinensis and P.sibiricum had inhibitory activity against V.harveyi. The inhibition zone diameter of S.chinensis against V.harveyi was 17.95 mm; MIC and MBC of S.chinensis were both 3.125 mg / ml. The inhibition zone diameter of P. sibiricum against V.harveyi was 12.22 mm; MIC and MBC of P.sibiricum were 3.125 and 6. 250 mg / ml,respectively. When the concentration was higher than 6. 25 mg / ml,S.chinensis decoction had extremely significant inhibitory activity against V.harveyi( P < 0. 01); when the concentration was higher than 3. 125 mg / ml,P. sibiricum had extremely significant inhibitory activity against V. harveyi(P <0. 01). [Conclusion]S.chinensis and P.sibiricum could significantly inhibit V.harveyi and its biofilms. | Zhifeng HUANG Huanying PANG Yang HUANG Yucong HUANG Yishan LU Jichang JIAN | 2016 | Agricultural Biotechnology2016,5,4: | 4 |
| 13 | Synsepalum dulcificum extracts exhibit cytotoxic activity on human colorectal cancer cells and upregulate c-fos and c-jun early apoptotic gene expression显示文摘Objective: To explore cytotoxicity of Synsepalum dulcificum(S. dulcificum) Daniell(Sapotaceae) on human colon cancer(HCT-116 and HT-29), human monocytic leukemia(THP-1) and normal(HDFn) cell lines, and its effect on the expression of early apoptotic genes, c-fos and c-jun. Methods: Leaf, stem and berry of S. dulcificum were separately extracted by using 2 solvents, 10% ethanol(EtOH) and 80% methanol(MeOH). PrestoB lue~? cell viability assay and q RT-PCR assay were conducted to examine the above objectives respectively. Results: Stem MeOH, stem EtOH, and berry EtOH extracts of S. dulcificum were cytotoxic to HCT-116 and HT-29 human colon cancer cells. For HCT-116, IC_(50) values of these 3 extracts were not significantly different(P>0.05) from that of the positive control bleomycin(IC_(50) of 33.57 μg/mL), while for HT-29, IC_(50) values of these 3 extracts were significantly lower(P<0.05) than that of bleomycin(IC_(50) of 25.24 μg/mL). None of the extracts were cytotoxic to the THP-1 monocytic leukemia cells and HDFn normal human dermal fibroblasts. For both HCT-116 and HT-29, these extracts significantly up-regulated(P<0.05) the expression of c-fos and c-jun compared to the untreated negative control. Conclusions: The results of this study suggest that cytotoxicity of stem MeOH, stem EtOH, and berry EtOH extracts of S. dulcificum on HCT-116 and HT-29 colon cancer cells is due to the induced apoptosis which is caused by the up-regulation of the expression of early apoptotic genes, c-fos and c-jun. | Jichang Seong Glenn G.Oyong Esperanza C.Cabrera | 2018 | Asian Pacific Journal of Tropical Biomedicine2018,8,3: | 4 |
| 14 | Recent progress in Mg-based alloys as a novel bioabsorbable biomaterials for orthopedic applications显示文摘Traditional orthopedic metal implants,such as titanium(Ti),Ti alloys,and cobalt-chromium(Co-Cr)alloys,cannot be degraded in vivo.Fracture patients is must always suffer a second operation to remove the implants.Moreover,stress shielding,or stress protection occurs when traditional orthopedic metal implants are applied in fractures surgery.The mechanical shunt produced by traditional orthopedic metal implants can cause bone loss over time,resulting in decreased bone strength and delayed fracture healing.Biodegradable metals that‘biocorrode’are currently attracting significant interest in the orthopedics field due to their suitability as temporary implants.As one of the biodegradable metals,magnesium(Mg)and Mg alloys have gained interest in the field of medicine due to their low density,excellent biocompatibility,high bioresorbability,and proper mechanical properties.Additionally,Mg ions released from the metal implants can promote osteogenesis and angiogenesis during the degradation process in vivo,which is substantially better for orthopedic fixation than other bioinert metal materials.Therefore,this review focuses on the properties,fabrication,biological functions,and surface modification of Mg-based alloys as novel bioabsorbable biomaterials for orthopedic applications. | Fei Xing Shang Li Dongdi Yin Jichang Xie Pol Maria Rommens Zhou Xiang Ming Liu Ulrike Ritz | 2022 | Journal of Magnesium and Alloys2022,10,6: | 3 |
| 15 | The Impact of Population Aging on Housing Demand in China Based on System Dynamics显示文摘In recent years, the proportion of China's elderly population is gradually increasing, and the real estate market is changing dramatically. Consequently the impact of population aging on housing demand has become increasingly prominent. On the theoretical basis of the relationship between population aging, family structure and housing demand, this paper firstly constructs a system dynamics model of the impact of population aging and family structure on housing demand in China. Then,the model is simulated, and several scenarios of population, family structure, and real estate policies are set up. The main conclusions of this paper are as follows: China's population will rise at first and then decrease, reaching a peak of 1.401 billion by 2023. As the proportion of elderly population increases, the degree of population aging is becoming increasingly serious. The size of the family will gradually shrink to 2.39 people per household in 2050. The housing demand will increase first and then decrease. Through the results of scenario simulation, this paper puts forward the following suggestion to effectively balance the housing demand in China: Completely relaxing family planning policies,imposing a real estate tax, canceling the pre-sale policy, and raising the loan rate. | MOU Xindi LI Xiuting DONG Jichang | 2021 | Journal of Systems Science & Complexity2021,34,1: | 3 |
| 16 | Nonparametric Inference for the Stress-Strength Model under Right Censoring显示文摘The stress-strength model is widely applied in reliability. Observations are often subject to right censoring due to some practical limitations. In such circumstances, the statistical inference for the stress-strength model is demanding, although lacking. We propose a nonparametric method for the inference of the stress-strength model when the observations are subject to right censoring. The asymptotic properties are also established. The practical utility of the proposed method is assessed through both simulated and real data sets. | QI Hui QI Fei YU Jichang | 2015 | Wuhan University Journal of Natural Sciences2015,20,3: | 3 |
| 17 | Background of Land Development and Opportunity of Land Use Transition显示文摘In order to ease the contradiction between people and land and ensure the needs of construction land and farmland,this paper analyzes the demand and regional land development background,and points out the problems of the development of the land in China: late start of land development and utilization practices; declining back-up resources and sharply increasing costs; new resources and environmental problems brought about by development and utilization of land in some areas. This paper presents a new opportunity and strategy for land use transition: giving full play to the agricultural and geographical advantages of farming-pastoral area; carrying out water-saving technologies and intensive use of agricultural land in water-deficient areas,in order to achieve reasonable and efficient development and utilization. | Jie CHENG Jichang HAN Huanyuan WANG Wei TONG | 2015 | Asian Agricultural Research2015,7,12: | 3 |
| 18 | Exploring the Linear and Nonlinear Causality Between Internet Big Data and Stock Markets显示文摘In the era of big data,stock markets are closely connected with Internet big data from diverse sources.This paper makes the first attempt to compare the linkage between stock markets and various Internet big data collected from search engines,public media and social media.To achieve this purpose,a big data-based causality testing framework is proposed with three steps,i.e.,data crawling,data mining and causality testing.Taking the Shanghai Stock Exchange and Shenzhen Stock Exchange as targets for stock markets,web search data,news,and microblogs as samples of Internet big data,some interesting findings can be obtained.1)There is a strong bi-directional,linear and nonlinear Granger causality between stock markets and investors'web search behaviors due to some similar trends and uncertain factors.2)News sentiments from public media have Granger causality with stock markets in a bi-directional linear way,while microblog sentiments from social media have Granger causality with stock markets in a unidirectional linear way,running from stock markets to microblog sentiments.3)News sentiments can explain the changes in stock markets better than microblog sentiments due to their authority.The results of this paper might provide some valuable information for both stock market investors and modelers. | DONG Jichang DAI Wei LI Jingjing | 2020 | Journal of Systems Science & Complexity2020,33,3: | 3 |
| 19 | Construction of Multi-Substituted Benzenes via NHC-Catalyzed Reactions of Carboxylic Esters显示文摘 | Jichang Wu Chengli Mou Yonggui Robin Chi | 2018 | Chinese Journal of Chemistry2018,36,4: | 2 |
| 20 | Molecular Cloning and Bioinformatics Analysis of TypeⅢSecretion System Effector Protein Va1686 Gene of Vibrio alginolyticus显示文摘In this study,Va1686 gene was cloned from Vibrio alginolyticus. The total length of the gene is 1 164 bp,and it could encode 387 amino acids. The physicochemical properties,protein structure,genetic evolutionary relationship and antigenic characteristics of the effect protein Va1686 of V. alginolyticus HY9901 type Ⅲ secretion system were studied and analyzed by bioinformatics methods and tools. The results showed that Va1686 is a stable hydrophilic and acidic protein without a transmembrane region and a signal peptide,and secondary structure to α-helix. The evolutionary analysis showed that V. alginolyticus HY9901 and V.harveyi were clustered together,which indicated that the genetic relationship between the two species was the closest. Va1686 contains a Fic superfamily conserved domain associated with cell division. Bioinformatics analysis showed that the B-cell preponderant epitopes of Va1686 might be localized in the regions of 48-49,82-85,125-126,150-153,185-186,236-237 and so on. The 3D structure model of Va1686 subunit was simulated by SWISS-MODEL software and it was found that the vop S of V. parahaemolyticus was similar and the similarity was 89. 46%. In this study,the feasibility of Va1686 as a common antigen of Vibrio was verified from the perspective of bioinformatics,which laid the foundation for the next step in vaccine development. | Zhihao WU Mingjie FAN Jiaming LIAO Huanying PANG Chuanhao PAN Dawei SONG Mingsheng QIU Shuanghu CAI Jichang JIAN | 2018 | Agricultural Biotechnology2018,7,5: | 2 |