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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第3期12卷 232-237页

作者： Ke TANG Tian LEI Xiao-gang lin tao JIN Yu zhang Institute of Refrigeration and Cryogenics Zhejiang University Hangzhou 310027 China

Gas-liquid coupling oscillation is a novel approach to reducing the resonant frequency and to elevating the pressure amplitude of a thermoacoustic *** a thermoacoustic engine is used to drive low-frequency pulse tube refrigerators,the frequency matching between the thermoacoustic engine and the refrigerator plays an important *** on an acoustic-electric analogy,a lumped parameter model is proposed to estimate the resonant frequency of a standing-wave thermoacoustic engine with gas-liquid coupling ***,a simplified lumped parameter model is also developed to reduce the computation *** resonant frequency dependence on the mean pressure,the gas space volume,and the water column length is computed and *** impact of different working gases on the resonant frequency is also *** effectiveness of the models is validated by comparing the computed results with the experimental data of the gas-liquid coupling oscillation *** increase in the mean working pressure can lead to a rise in the resonant frequency,and a lower resonant frequency can be achieved by elongating the liquid *** comparison with nitrogen and argon,carbon dioxide can realize a lower frequency due to a smaller specific heat ratio.

关键词： Thermoacoustic engine Gas-liquid coupling oscillation Acoustic-electric analogy Resonant frequency

Synergistic catalysis of isolated Fe^(3+) and Fe_2O_3 on FeO_x/HZSM-5 catalysts for Friedel-Crafts benzylation of benzene

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Chinese Chemical Letters 2011年第6期22卷 639-642页

作者： tao lin Xin zhang Rong Li Ting Bai Si Ying Yang School of Chemical Engineering Northwest UniversityXi'an 710069China

FeO_x/HZSM-5 catalyst with 8 wt.%Fe-loading（8-FeZ） exhibited significantly higher reactivity in the benzylation of benzene with benzyl chloride than FeO_x/HZSM-5 catalyst with 2.5 wt.%Fe-loading（2.5-FeZ） because t... 详细信息

关键词： Friedel-Crafts Synergistic catalysis Benzene Diphenylmethane Fe^(3+) FeO_x/HZSM-5

Experimental studies on oxidizing removal of Cyclops of zooplankton

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High Technology Letters 2006年第1期12卷 86-90页

作者：刘冬梅 Cui Fuyi lin tao An Dong zhang Min School of Municipal ＆ Environmental Engineering Harbin Institute of Technology Harbin 150090 P.R. China

The inactivation of Cyclops with currently available oxidants such as chlorine, chlorine dioxide, ozone and potassium permanganate was investigated and reported under various working conditions of different oxidant dosage, organic substance content and pH value. The removal efficiency of Cyclops by predosing chlorine dioxide in water treatment process was comprehensively compared with that of the conventional prechlorination process. The results showed that chlorine dioxide might be most effective to inactivate Cyclops than other oxidants and its effect was less influenced by external conditions. Cyclops could be effectively inactivated by chlorine dioxide preoxidation and be thoroughly removed from water by chlorine dioxide preoxidation cooperating with routine clarification process, i.e. flocculation, sedimentation and filtration.

关键词： Cyclops of zooplankton water treatment oxidant removal

Binder jetting 3D printing process optimization for rapid casting of green parts with high tensile strength

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China Foundry 2021年第4期18卷 335-343页

作者： Zhao-fa zhang Li Wang lin-tao zhang Peng-fei Ma Bing-heng Lu Chen-wei Du Micro and Nano Technology Research Center State Key Laboratory for Manufacturing Systems EngineeringXi’an Jiaotong UniversityXi’an 710049China National Innovation Institute of Additive Manufacturing Xi’an 710065China Beijing Hangxing Machinery Manufacturing Co. Ltd.Beijing 100013China

Binder jetting 3D printing is a rapid,cost effective,and efficient moulding/core making process,which can be applied to a large variety of ***,it exhibits a relatively low green-part *** may cause the collapse of the printed parts during de-caking and the pick-up procedure,especially in the case of small-scale structures,such as thin walls,tips,and *** this work,polyvinyl alcohol(PVA)was used as the additive in coated sand *** exploiting the binding effect between the two composites(thermoplastic phenolic resin and PVA)triggered by the binder,bonding necks firmly form among the sand particles,improving the green-part strength of the coated sand printed *** based on the Taguchi method were used to investigate the relationship between the process parameters and the green-part tensile *** following set of optimal process parameters was identified:50wt.%alcoholicity of the binder,75%binder saturation,0.36 mm layer thickness and 4.5wt.%PVA ***,the effect of such parameters on the green-part tensile strength was determined via statistical *** green part of an engine cylinder head sand pattern with complex cavity structures was printed,and the green-part tensile strength reached 2.31 ***,the ZL301 aluminum alloy impeller shape casting was prepared using sand molds printed with the optimal process *** results confirm that the proposed binder jetting 3D printing process can guarantee the integrity of the printed green parts and of small-size structures during de-caking and the pick-up ***,the casting made from the printed sand molds exhibits a relatively high quality.

关键词： binder jetting green-part strength coated sand polyvinyl alcohol rapid casting

Flow cytometric characterizations of leukocyte subpopulations in the peripheral blood of northern pig-tailed macaques （Macaca leonina）

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Zoological Research 2014年第6期35卷 465-473页

作者： Hong-Yi ZHENG Ming-Xu zhang lin-tao zhang Xiao-Liang zhang Wei PANG Long-Bao LYU Yong-Tang ZHENG Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province Kunming Institute of Zoology Chinese Academy of Sciences Kunming Yunnan 650223 China School of Life Sciences University of Science and Technology of China Hefei Anhui 230026 China Kunming College of Life Science University of Chinese Academy of Sciences Kunming Yunnan 650204 China Faculty of Life Science and Technology Kunming University of Science and Technology Kunming Yunnan 650500 China Kunming Primate Research Center Kunming Institute of Zoology Chinese Academy of Sciences Kunming Yunnan 650223 China

Pig-tailed macaques(Macaca nemistrina group) have been extensively used as non-human primate animal models for various human diseases in recent years, notably for AIDS research due to their sensitivity to HIV-1. Northern pig-tailed macaques(M. leonina) are distributed in China and other surrounding Southeast Asia countries. Although northern pig-tailed macaques have been bred on a large scale as experimental animals since 2012, the reference value of normal levels of leukocytes is not available. To obtain such information, 62 blood samples from male and female healthy northern pig-tailed macaques at different ages were collected. The normal range of major leukocyte subpopulations, such as T lymphocytes, B lymphocytes, natural killer(NK) cells, monocytes, and the expression levels of activation or differentiation related molecules(CD38, HLA-DR, CCR5, CD21, IgD, CD80 and CD86) on lymphocytes were analyzed by flow cytometry. The counts of B cells decreased with age, but those of CD8+ T cells and NK cells and the frequency of CD38+HLA-DR+CD4+ T cells were positively correlated with age. The counts of leukocyte subpopulations were higher in males than those in females except for CD4+ T cells. Males also showed higher expression levels of Ig D and CD21 within B cells. This study provides basic data about the leukocyte subpopulations of northern pig-tailed macaques and compares this species with commonly used Chinese rhesus macaques(M. mulatta), which is meaningful for the biomedical application of northern pig-tailed macaques.

关键词： Northern pig-tailed macaque Flow cytometry Leukocyte subpopulation Age Sex

HIV-1 can infect northern pig-tailed macaques(Macaca leonina) and form viral reservoirs in vivo

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Science Bulletin 2017年第19期62卷 1315-1324页

作者： Wei Pang Gao-Hong zhang Jin Jiang Hong-Yi Zheng lin-tao zhang Xiao-Liang zhang Jia-Hao Song Ming-Xu zhang Jia-Wu Zhu Ai-Hua Lei Ren-Rong Tian Xiao-Ming Liu Liguo zhang Guangxia Gao Lishan Su Yong-Tang Zheng Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province Kunming Institute of ZoologyChinese Academy of Sciences University of Chinese Academy of Sciences Institute of Health Sciences Anhui University South China Institute of Endangered Animal Guandong Academy of Sciences Key Laboratory of Infection and Immunity Institute of BiophysicsChinese Academy of Sciences Department of Microbiology and Immunology School of MedicineThe University of North Carolina at Chapel Hill

Viral reservoirs of HIV-1 are a major obstacle for curing AIDS. The novel animal models that can be directly infected with HIV-I will contribute to develop effective strategies for eradicating infections. Here, we inoculated 4 northern pig-tailed macaques （NPM） with the HIV-1 strain HIV-1NL4.3 and moni- tored the infection for approximately 3 years （150 weeks）. The HIV-l-infected NPMs showed transient viremia for about 10 weeks after infection. However, cell-associated proviral DNA and viral RNA persisted in the peripheral blood and lymphoid organs for about 3 years. Moreover, replication-competent HIV-1 could be successfully recovered from peripheral blood mononuclear cells （PBMCs） during long-term infection. The numbers of resting CD4~ T cells in HIV-1 infected NPMs harboring proviruses fell within a range of 2- to 3-1oglo per million cells, and these proviruses could be reactivated both ex vivo and in vivo in response to co-stimulation with the latency-reversing agents JQ1 and prostratin. Our results suggested that NPMs can be infected with HIV-1 and a long-term viral reservoir was formed in NPMs, which might serve as a potential model for HIV-1 reservoir research.

关键词： Northern pig-tailed macaquesHIV-1 Viral reservoir JQ1 Prostratin

Fine-tuning the spatial allocation of phytohormones for smart canopy, smart breeding, and smart agriculture

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Science China Life Sciences 2025年第1期68卷 309-310页

作者： tao Zhou lin Li National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural University HuBei HongShan Laboratory

The dual challenges of global climate change and population growth have increased demand for higher crop yields per unit area. The innovative technology of smart agriculture aims to synergize breeding, cultivation, and production through the application of biological and informatics technologies. Historically, the “Green Revolution” introduced semidwarf varieties of certain key crops by utilizing mutations affecting gibberellin pathways, which significantly increased planting densities and yields.

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Numerical Study of Flow and Heat Transfer Characteristics of Shell-and-Tube Molten Salt Electric Heater with Circularly Perforated Baffles

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Journal of Thermal Science 2025年第1期34卷 24-33页

作者： lin Yongjie zhang Cancan WU Yuting zhang Yi LU Yuanwei Key Laboratory of Heat Transfer and Energy Conversion National User-Side Energy Storage Innovation Research and Development CenterBeijing University of Technology

Numerical simulations of the flow and heat transfer characteristics of four shell-and-tube molten salt electric heaters with different perforation rates was ***-and-tube electric heaters have the same geometry and tube arrangement,and all of them use single segmental baffles,but there exist four different baffle openings（φ）,i.e.,0%,2.52%,4.06%,and 6.31%.The results indicated that the reasonable baffle opening could significantly reduce the shell-side pressure drop,effectively decreasing the shell-side flow dead zone *** can eliminate the local high-temperature phenomenon on the surface of electric heating tubes,but the heat transfer coefficient is slightly *** perforated schemes significantly reduce shell-side pressure drop compared to the baseline solution without open *** particular,the φ=6.31% scheme exhibits the optimal performance among all the schemes,with a maximum reduction of up to 50.50% in shell-side pressure drop relative to the unopened holes *** heat transfer coefficient is the highest for φ=0%,exhibiting a range of5.26% to 5.73%,5.14% to 5.99%,and 7.31% to 8.54% higher than φ=2.52%,4.06%,and 6.31%,respectively,within the calculated *** composite index h/（Δp）1/3was higher for all open-hole solutions than that for the unopened-hole *** best overall performance was for φ=6.31%,which improved the composite index by15.29% to 17.18% over the unopened-hole solution.

关键词： molten salt electric heater perforated baffles heat transfer

Aerodynamic Optimization and Flow Mechanism for a Compressor Cascade at Low Reynolds Number

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Journal of Thermal Science 2025年第1期34卷 92-109页

作者： LI lin zhang Jianshe CHEN Caiyan TAN Wei zhang Yanfeng Key Laboratory of Light-Duty Gas-Turbine Institute of Engineering ThermophysicsChinese Academy of Sciences University of Chinese Academy of Sciences National Key Laboratory of Science and Technology on Advanced Light-duty Gas-turbine

Low-Reynolds-number effect is an important factor affecting the performance of compressors and other main components of high-altitude long-endurance unmanned aerial *** improve the flow condition and reduce flow loss under the condition of high altitude and low Reynolds number(Re),this paper proposes an optimization process based on a surrogate model,which combines the class-shape transformation method(CST),the Latin hypercube sampling(LHS) method,the light gradient-boosting machine algorithm(LightGBM),and a genetic algorithm(GA) to optimize a high-subsonic compressor *** surrogate model is verified to be accurate and can be used in the optimization *** accuracy of the GA is higher than the other algorithms under common test *** optimization results are verified by numerical simulation,and the flow differences before and after optimization are compared,especially the flow within the boundary *** changing the blade shape,the optimization process adjusts the loading distribution to delay the transition of the optimized blade on the suction surface,which changes the turbulent reattachment in the laminar separation bubble(LSB) into laminar ***,the mixing loss induced by the turbulent reattachment of the LSB and the wake loss of turbulent separation at the trailing edge are significantly reduced,and the performance of the compressor profile is finally *** addition,turbulent separation of the optimized profile is delayed reducing the range of the wake region on the suction *** this optimization process,the reduction of total pressure loss coefficient at Re of 2.5×10～5,3.5×10～5,and 4.5×10～5 are 16.32%,20.76%,and 22.16%,respectively.

关键词： Reynolds number

Propagating subduction initiation of the Caroline Plate at the Mussau Trench

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Science China Earth Sciences 2025年第1期68卷 253-269页

作者： Chun-Feng LI Yongkang DENG tao WU Dongdong DONG Guoliang zhang Jiazheng zhang Yutao LIU Yaqing LI Fugui TANG Lulu zhang Department of Marine Sciences Zhejiang University Laboratory of Marine Mineral Resources Laoshan Laboratory Key Lab of Marine Geology and Environment Institute of Oceanology Chinese Academy of Sciences Key Lab of Ocean and Marginal Sea Geology South China Sea Institute of Oceanology Chinese Academy of Sciences Science & Technology on Integrated Information System Lab Institute of Software Chinese Academy of Sciences

New seismic imaging from the Mussau Trench confirms that, under horizontal compression on an oceanic plate boundary, it is within the young and weak oceanic plate that a trench will develop, and it is the young plate, not so long after its birth, that starts to subduct toward the old plate. The Mesozoic Pacific Plate cannot easily bend, under the joint horizontal compression and vertical gravity pull, even with a pre-existing weak zone in place and with a large age offset across the plate boundary. The bending of the Caroline Plate near the northern end of the Mussau Trench started only after a long-time span of trench migration, and/or after a prolonged transition from initial compression to trench development. Highly contrasting trench deformation and sedimentary accretion between two parallel seismic sections support an evident migration of underthrusting or significant longitudinal heterogeneity along the trench. The swift transition from underthrusting to non-thrusting can be explained by a counter-clockwise rotation of the Caroline Plate. That miniature accretionary wedges develop even before the subduction initiates imply strong compression and uplifting before the underthrusting can kick-start. Rotation of the Caroline Plate have been halted as the Mussau Trench is seismically rather quiet and the Lyra Trough to the east shows relaxational extension.

关键词： Mussau Trench Subduction initiation Seismic reflection Caroline Plate

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