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Chinese Journal of Integrative Medicine 2023年第4期29卷 353-360页

作者： WU Xiao-dong zhao Nan-qi DING Nan YUAN jing-yun dong Guo-feng WANG Xin LIU bao-yan Institute of Acupuncture and Moxibustion China Academy of Chinese Medical SciencesBeijing 100700China College of Acupuncture and Massage Beijing University of Chinese MedicineBeijing 100029China

The clinical questions of acupuncture-moxibustion(Acup-Mox)guidelines are complicated,including not only the curative effect of Acup-Mox intervention measures,but also the operational elements of *** paper aimed to put forward the idea and process of collecting clinical questions in developing international acupuncture clinical practice *** experience was collected and the idea of collecting clinical questions of Acup-Mox was formed through expert consultation and discussion in combination with expert *** on the characteristics of Acup-Mox *** paper put forward the thinking of collecting elements of clinical questions following the intervention-population-outcome-control(I-P-O-C)inquiry process,according to the discipline of *** was emphasized that in the process of collecting clinical questions,"treatable population"and"alleviable outcome indicators"for a specific Acup-Mox intervention with certain therapeutic effect should be focused on,so as to highlight the pertinence of clinical questions of AcupMox guidelines in terms of population and outcome elements.

关键词： acupuncture-moxibustion intervention Chinese medicine I-P-O-C inquiry process suitable population outcome evaluation

Cr Stable Isotope Fractionation in Arbuscular Mycorrhizal Dandelion and Cr Uptake by Extraradical Mycelium

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Pedosphere 2015年第2期25卷 186-191页

作者： REN Bai-Hui WU Song-lin CHEN bao-dong WU zhao-Xiang ZHANG Xin State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of Sciences

As common soil fungi that form symbioses with most terrestrial plants,arbuscular mycorrhizal(AM) fungi play an important role in plant adaptation to chromium(Cr) ***,little information is available on the underlying mechanisms of AM symbiosis on plant Cr *** this study,dandelion(Taraxacum platypecidum Diels.) was grown with and without inoculation of the AM fungus Rhizophagus irregularis and Cr uptake by extraradical mycelium(ERM) was investigated by a compartmented cultivation system using a Cr stable isotope *** results indicated that AM symbiosis increased plant dry weights and P concentrations but decreased shoot Cr *** the Cr stable isotope tracer technology,the work provided possible evidences of Cr uptake and transport by ERM,and confirmed the enhancement of root Cr stabilization by AM *** study also indicated an enrichment of lighter Cr isotopes in shoots during Cr translocation from roots to shoots in mycorrhizal plants.

关键词： arbuscular mycorrhizal fungi Cr contamination Cr translocation hyphae mycorrhizal plant

Two New Alkamides from Spilanthes callimorpha

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Journal of Integrative Plant Biology 2007年第11期49卷 1608-1610页

作者： Gan-Peng Li bao-Chun Shen jing-Feng zhao Xiao-dong Yang Liang Li Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education School of Chemical Science and Technology Yunnan University Kunming 650091 China School of Chemistry and Biotechnology Yunnan Nationafities University Kunming 650031 China School of Pharmacy Kunming Medical College Kunming 650031 China

Two new alkamides, 8,11-dihydroxy-dodeca-2E,4E,9E-triensaureisobutylamid （Compound 1） and 7-hydroxy-trideca-2E,8E- dien-10,12-diynoic acid isobutylamide （Compound 2）, as well as eight known compounds were isolated from the whole plants of Spilanthes callimorpha. The structures of the alkamides were characterized on the basis of their spectral data.

关键词： compositae N-isobutylamides Spilanthes Spilanthes callimorpha.

Superior machinability of steel enhanced with BN and MnS particles

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International Journal of Minerals,Metallurgy and Materials 2016年第3期23卷 276-282页

作者： Ya-nan Chen Yan-ping bao Min Wang Xiao-feng Cai lin-jing Wang Li-hua zhao State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Beijing 100083China National Engineering Research Center of Flat Rolling Equipment University of Science and Technology BeijingBeijing 100083China

The strategy that replacing part of MnS with BN was proposed in order to decrease the sulfur content in sulfur based free-cutting steel. The effects of BN and MnS inclusions on the microstructure and machinability of the steel were systematically investigated. The results show that most of the BN and MnS inclusions exist individually in the steel and only a small amount of them are in a composite state form- ing either isolated particles or clusters of particles. In the case of multi-phased steel, the theoretical calculation predicts that the volume of large BN particles should be 0.7 times of the volume of large MnS particles. The machinability of this type of BN and MnS alloy steel over a wide range of cutting speeds ranging from a low speed appropriate for drilling to a high speed appropriate for turning is confirmed as being equal to or superior to that of an MnS reference steel, even though the sulfur content in the composite steel is only half that of the MnS steel. The aptitude for cutting effect of 240 ppm nitrogen and 115 ppm boron in the composite steel is demonstrated to be equivalent or even better than 1000 ppm sulfur in MnS free-cutting steel.

关键词： boron nitride manganese sulfide inclusions machinability free cutting steel

Controlled quantum teleportation of an unknown single-qutrit state in noisy channels with memory

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Chinese Physics B 2021年第6期30卷 116-125页

作者： Shexiang jiang bao zhao Xingzhu Liang School of Computer Science and Engineering Anhui University of Science and TechnologyHuainan 232001China

This paper proposes a three-dimensional(3 D) controlled quantum teleportation scheme for an unknown single-qutrit state. The scheme is first introduced in an ideal environment, and its detailed implementation is described via the transformation of the quantum system. Four types of 3 D-Pauli-like noise corresponding to Weyl operators are created by Kraus operators: trit-flip, t-phase-flip, trit-phase-flip, and t-depolarizing. Then, this scheme is analyzed in terms of four types of noisy channel with memory. For each type of noise, the average fidelity is calculated as a function of memory and noise parameters, which is afterwards compared with classical fidelity. The results demonstrate that for trit-flip and t-depolarizing noises, memory will increase the average fidelity regardless of the noise parameter. However, for t-phase-flip and trit-phaseflip noises, memory may become ineffective in increasing the average fidelity above a certain noise threshold.

关键词： three-dimensional quantum teleportation fidelity Pauli noise memory channel

Weighted cooperative routing for wireless mobile Ad-hoc network

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The Journal of China Universities of Posts and Telecommunications 2007年第1期14卷 16-21页

作者： zhao Xian-jing ZHENG bao-yu CHEN Chao Institute of Signal and Information Processing Nanjing University of Posts and Telecommunications Nanjing 210003 China

A novel weighted cooperative routing algorithm （WCRA） is proposed in this article, which was on the basis of a weighted metric with maximal remaining energy （MRE） of the relays and the maximal received SNR （MRS） of the nodes. Moreover, a cooperative routing protocol was implemented on the basis of WCRA. Then simulation is done on network simulation （NS-2） platform to compare the performances of MRS, MRE and WCRA with that of noncooperative destination-sequenced destination-sequenced distance-vector （DSDV） protocol. The simulative results show that WCRA obtains a performance tradeoff between MRE and MRS in terms of delivery ratio and network lifetime, which can effectively improve the network lifetime at an acceptable loss of delivery ratio.

关键词： weighted cooperative routing Ad-hoc networks,quality of service DSDV routing protocol

The research of cooperative routing algorithm in mobile Ad hoc networks

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The Journal of China Universities of Posts and Telecommunications 2006年第3期13卷 5-10页

作者： CHEN Chao ZHENG bao-yu zhao Xian-jing Institute of Signal and Information Processing Nanjing University of Posts and Telecommunications Nanjing 210003 China

Cooperative routing technology can efficiently improve the performance of the network by initiatively selecting cooperative nodes to forward the data. In this article, cooperative routing algorithms are proposed and implemented based on three different criteria： optimal channel state, maximal remaining energy, and the shortest path. The simulation based on network simulation （NS） compares the performance of the proposed algorithms with non-cooperative destination-sequenced distancevector （DSDV） protocol. The results reveal that cooperative algorithms outperform DSDV routing protocol with distinctive gains at the cost of sacrificing acceptable normalized network load.

关键词： cooperative routing crosslayer DSDV routing protocol Ad hoc networks

Elimination of cracks in stainless steel casings via 3D printed sand molds with an internal topology structure

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China Foundry 2024年第4期21卷 319-326页

作者： Jun-hang Xu bao-zhi Li zhao-wei Song Yun-bao Gao jing-ming Li Yu Wang Qiu-lin Wen Heng Cao Zeng-rui Wang National Key Laboratory of Advanced Casting Technologies Shenyang 110022China Shenyang Research Institute of Foundry Co. Ltd.CAMShenyang 110022China

The important supporting component in a gas turbine is the casing,which has the characteristics of large size,complex structure,and thin *** the context of existing 3DP sand casting processes,casting crack defects are prone to *** leads to an increase in the scrap rate of casings,causing significant resource ***,the presence of cracks poses a significant safety hazard after the casings are put into *** generation of different types of crack defects in stainless steel casings is closely related to casting stress and the high-temperature concession of the sand ***,the types and causes of cracks in stainless steel casing products,based on their structural characteristics,were systematically *** sand molds with different internal topology designs were printed using the 3DP technology to investigate the impact of sand mold structures on high-temperature *** optimal sand mold structure was used to cast casings,and the crack suppression effect was verified by analyzing its eddy current testing *** experimental results indicate that the skeleton structure has an excellent effect on suppressing cracks in the *** research holds important theoretical and engineering significance in improving the quality of casing castings and reducing production costs.

关键词： gas turbine casing crack defects 3D printed sand mold topological structure high-temperature concession

Hydraulic model with roughness coefficient updating method based on Kalman filter for channel flood forecast

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Water Science and Engineering 2011年第1期4卷 13-23页

作者： Hong-jun bao lin-na zhao Public Meteorological Service Center China Meteorological Administration Beijing 100081 P. R. China National Meteorological Center China Meteorological Administration Beijing 100081 P. R. China

A real-time channel flood forecast model was developed to simulate channel flow in plain rivers based on the dynamic wave theory. Taking into consideration channel shape differences along the channel, a roughness updating technique was developed using the Kalman filter method to update Manning＇s roughness coefficient at each time step of the calculation processes. Channel shapes were simplified as rectangles, triangles, and parabolas, and the relationships between hydraulic radius and water depth were developed for plain rivers. Based on the relationship between the Froude number and the inertia terms of the momentum equation in the Saint-Venant equations, the relationship between Manning＇s roughness coefficient and water depth was obtained. Using the channel of the Huaihe River from Wangjiaba to Lutaizi stations as a case, to test the performance and rationality of the present flood routing model, the original hydraulic model was compared with the developed model. Results show that the stage hydrographs calculated by the developed flood routing model with the updated Manning＇s roughness coefficient have a good agreement with the observed stage hydrographs. This model performs better than the original hydraulic model.

关键词： flood routing," Manning's roughness coefficient updating method," Kalman filter," Froude number Saint-Venant equations hydraulic model

Influence of particle packing structure on sound velocity

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Chinese Physics B 2018年第10期27卷 386-394页

作者： Chuang zhao Cheng-Bo Li lin bao College of Physics Guizhou UniversityGuiyang 550025China College of Mathematics and Physics Anyang Institute of TechnologyAnyang 455000China

The anisotropy in the particle systems of different packing structures affects the sound velocity. The acoustic propagation process in four kinds of packing structures（denoted as S45, H60, S90, and D） of two-dimensional granular system is simulated by the discrete element method. The velocity vtof obtained by the time of flight method and the velocity vc obtained from the stiffness tensor of the system are compared. Different sound velocities reflect various packing structures and force distributions within the system. The compression wave velocities of H60 and S90 are nearly the same, and transmit faster than that of D packing structure, while the sound velocity of S45 is the smallest. The shear wave velocities of S45 and H60 are nearly the same, and transmit faster than that of D packing structure. The compression wave velocity is sensitive to the volume fraction of the structure, however, the shear wave velocity is more sensitive to the geometrical structure itself. As the normal stress p is larger than 1 MPa, vtof and vc are almost equal, and the stiffness tensors of various structures explain the difference of sound velocities. When the normal stress is less than 1 MPa, with the coordination number unchanged, the law vtof ∝ p^1/4 still exists. This demonstrates that apart from different power laws between force and deformation as well as the change of the coordination number under different stresses, there are other complicated causes of vtof∝ p^1/4, and an explanation of the deviation from vtof ∝ p^1/6 is given from the perspective of dissipation.

关键词： discrete element method acoustic propagation packing structure stiffness tensor