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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 | 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 |
| 4 | 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 |
| 5 | 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 |
| 6 | 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 |
| 7 | 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 |
| 8 | A Multiplex PCR Assay for the Detection of Pathogenic Genes of EPEC,ETEC and EIEC显示文摘A multiplex polymerase chain reaction (PCR) was developed to detect three pathogenic genes of en-teropathogenic, enterotocigenic and enteroinvasive Escherichia coli.. In this study three different sets of oligonu-cleotide primer were simultaneously used, and in this way, specific fragments of 880, 600, 150 bp for EPEC eaeA, EIEC ipaH and ETEC ST genes were amplified, respectively. The best condition of the multiplex PCR was: after an initial heat denaturation step at 95℃ for 5 min, followed by 30 cycles of denaturation at 94℃ for 40 s, primer annealing at 51.3 ℃ for 40 s and extension at 72 ℃ for 1 min, final extension at 72 ℃ for 10 min. The detection limit of the eaeA, ipaH and ST primers was 38.7423, 3.60519, 29.9448 ng·mL-1 (4.3×104, 1.5×103, 2.6×104 CFU·mL-1), respectively. It may be a good way for the detection and identification of Diarrhea-causing E. coli. . | ZHANG Tienan LI Jichang LU Chengwu HUO Guicheng | 2006 | Journal of Northeast Agricultural University(English Edition)2006，13，1： | 2 |
| 9 | Image denoising using modified Perona-Malik model based on Directional Laplacian显示文摘 | Guo Jichang Chen Wufan Zhang Wenxue | 2013 | Signal Processing2013，93，： | 1 |
| 10 | Copper-Mediated Trifluoromethylation of Terminal Alkynes by S-(Trifluoromethyl)diarylsulfonium Salt显示文摘有 S-(trifluoromethyl ) diarylsulfonium 盐的终端炔属羟的调停铜的 trifluoromethylation 小心地被调查了。反应顺利继续了负担得起 trifluoromethylated 乙炔在对好收益中等。这条途径是一个方便方法综合许多功能的 trifluoromethylated 乙炔。 | Xiaoping Wang Jinhong Lin Chengpan Zhang Jichang Xiao Xing Zheng | 2013 | Chinese Journal of Chemistry2013，31，7： | 1 |
| 11 | Optimal production and pricing policy for a closed loop system显示文摘 | Shi Jianmai Zhang Guoqing Sha Jichang | | 0，，06： | 1 |
| 12 | A multicentre randomised trial comparing weekly paclitaxel<ce:hsp sp='0.25'/>+<ce:hsp sp='0.25'/>S-1 with weekly paclitaxel<ce:hsp sp='0.25'/>+<ce:hsp sp='0.25'/>5-fluorouracil for patients with advanced gastric cancer显示文摘 | Dingzhi Huang Yi Ba Jianping Xiong Nong Xu Zhao Yan Zhixiang Zhuang Zhuang Yu Huiping Wan Yang Zhang Ting Deng Rongsheng Zheng Zengqing Guo Chunhong Hu Meiling Wang Zhonghe Yu Yang Yao Jichang Meng | 2013 | European Journal of Cancer2013，，： | 1 |
| 13 | Optimal production and pricing policy for a closed loop system显示文摘 | Shi Jianmal Zhang Guoqing Sha Jichang | 2011 | Resources Conservation and Recycling2011，55，6： | 1 |
| 14 | Fine-grained gravity flow sedimentation and its influence on development of shale oil sweet sections in lacustrine basins in China显示文摘The geological conditions and processes of fine-grained gravity flow sedimentation in continental lacustrine basins in China are analyzed to construct the model of fine-grained gravity flow sedimentation in lacustrine basin,reveal the development laws of fine-grained deposits and source-reservoir,and identify the sweet sections of shale oil.The results show that fine-grained gravity flow is one of the important sedimentary processes in deep lake environment,and it can transport fine-grained clasts and organic matter in shallow water to deep lake,forming sweet sections and high-quality source rocks of shale oil.Fine-grained gravity flow deposits in deep waters of lacustrine basins in China are mainly fine-grained high-density flow,fine-grained turbidity flow(including surge-like turbidity flow and fine-grained hyperpycnal flow),fine-grained viscous flow(including fine-grained debris flow and mud flow),and fine-grained transitional flow deposits.The distribution of fine-grained gravity flow deposits in the warm and humid unbalanced lacustrine basins are controlled by lake-level fluctuation,flooding events,and lakebed paleogeomorphology.During the lake-level rise,fine-grained hyperpycnal flow caused by flooding formed fine-grained channel–levee–lobe system in the flat area of the deep lake.During the lake-level fall,the sublacustrine fan system represented by unconfined channel was developed in the flexural slope breaks and sedimentary slopes of depressed lacustrine basins,and in the steep slopes of faulted lacustrine basins;the sublacustrine fan system with confined or unconfined channel was developed on the gentle slopes and in axial direction of faulted lacustrine basins,with fine-grained gravity flow deposits possibly existing in the lower fan.Within the fourth-order sequences,transgression might lead to organic-rich shale and fine-grained hyperpycnal flow deposits,while regression might cause fine-grained high-density flow,surge-like turbidity flow,fine-grained debris flow,mud flow,and fine-grained transitional flow deposits.Since the Permian,in the shale strata of lacustrine basins in China,multiple transgression-regression cycles of fourth-order sequences have formed multiple source-reservoir assemblages.Diverse fine-grained gravity flow sedimentation processes have created sweet sections of thin siltstone consisting of fine-grained high-density flow,fine-grained hyperpycnal flow and surge-like turbidity flow deposits,sweet sections with interbeds of mudstone and siltstone formed by fine-grained transitional flows,and sweet sections of shale containing silty and muddy clasts and with horizontal bedding formed by fine-grained debris flow and mud flow.The model of fine-grained gravity flow sedimentation in lacustrine basin is significant for the scientific evaluation of sweet shale oil reservoir and organic-rich source rock. | ZOU Caineng FENG Youliang YANG Zhi JIANG Wenqi ZHANG Tianshu ZHANG Hong WANG Xiaoni ZHU Jichang WEI Qizhao | 2023 | Petroleum Exploration and Development2023，50，5： | 1 |
| 15 | Optimal production planning for a multi-product closed loop system with uncertain demand and return显示文摘 | Shi Jianmai Zhang Guoqing Sha Jichang | 2011 | Computers Operations Research2011，38，3： | 1 |
| 16 | Efficient recovery of group-sparse signals with truncated and reweighted l_(2,1)-regularization显示文摘The l_(2,1)-norm regularization can efficiently recover group-sparse signals whose non-zero coefficients occur in a few groups. It is well known that the l_(2,1)-norm regularization based on the classic alternating direction method shows strong stability and robustness in many applications. However, the l_(2,1)-norm regularization requires more measurements. In order to recover groupsparse signals with a better sparsity-measurement tradeoff, the truncated l_(2,1)-norm regularization and reweighted l_(2,1)-norm regularization are proposed for the recovery of group-sparse signals based on the iterative support detection. The proposed algorithms are tested and compared with the l_(2,1)-norm model on a series of synthetic signals and the Shepp-Logan phantom. Experimental results demonstrate the performance of the proposed algorithms,especially at a low sample rate and high sparsity level. | Yan Zhang Jichang Guo Xianguo Li | 2017 | Journal of Systems Engineering and Electronics2017，28，1： | 1 |
| 17 | Optimal production planning for a multi-product closed loop sys-tem with uncertain demand and return 显示文摘 | Shi Jianmai Zhang Guoqing Sha Jichang | 2011 | Comput Op- erat Res2011，38，3： | 1 |
| 18 | Clinical application of radioimmunoguided surgery in colorectal cancer using125i-labeled carcinoembryonic antigen-specific monoclonal antibody submucosally显示文摘 | Jin Gu M.D. Jun Zhao M.D. Zhenfu Li Ph.D. Zhi Yang Ph.D. Jichang Zhang M.D. Zhian Gao M.D. Yi Wang M.D. Guangwei Xu M.D | 2003 | Diseases of the Colon & Rectum2003，，12： | 1 |
| 19 | Optimal production planning for a multi-product closed loop system with uncertain demand and return显示文摘 | Jianmai Shi Guoqing Zhang Jichang Sha | 2010 | Computers and Operations Research2010，，： | 1 |
| 20 | Optimal production planning for a multi-product closed loop system with uncertain demand and return 显示文摘 | SHI Jianmai ZHANG Guoqing SHA Jichang | 2011 | Computers and Operations Research2011，38，： | 1 |
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