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| 1 | Biological couplings: Classification and characteristic rules显示文摘The phenomena that biological functions originate from biological coupling are the important biological foundation of multiple bionics and the significant discoveries in the bionic fields. In this paper, the basic concepts related to biological coupling are introduced from the bionic viewpoint. Constitution, classification and characteristic rules of biological coupling are illuminated, the general modes of biological coupling studies are analyzed, and the prospects of multi-coupling bionics are predicted. | REN LuQuan LIANG YunHong | 2009 | Science China(Technological Sciences)2009，52，10： | 32 |
| 2 | Biological couplings: Function, characteristics and implementation mode显示文摘Through rigorous natural selection, biological organisms have evolved exceptional functions highly adaptable to their living environments. Biological organisms can achieve a variety of biological functions efficiently by using the synergic actions of two or more different parts of the body, or the coupling effects of multiple factors, and demonstrate optimal adaptations to the living environment. In this paper, the function, characteristics and types of biological couplings are analyzed, the implementation mechanism and mode of biological coupling functions are revealed from the bionic viewpoint. Finally, the technological prospects of the bionic implementation of biological coupling function are predicted. | REN LuQuan & LIANG YunHong Key Laboratory of Bionic Engineering of Ministry of Education, School of Biological and Agricultural Engineering, Jilin University, Changchun 130025, China | 2010 | Science China(Technological Sciences)2010，53，2： | 23 |
| 3 | Preliminary studies on the basic factors of bionics显示文摘The bionic consciousness,idea,and practice opened a unique path for the progress of mankind,the development of the society,and the innovation of science and technology from the subconscious bionic activities of the ancient humans to the significant bionic designs in modern engineering.Nowadays,driven by the practical demand of human beings,bionics becomes an important factor for the sustainable development of technology.A lot of new and outstanding innovations have been produced through the effective interactions between bionics,technology,and demand.The stronger the interactions,the greater the innovation success would be.In this article,the basic factors such as the connotation,characteristics,and interactions of bionic demands,bionic models,bionic simulations,and bionic products were explained,which are the indispensable basic knowledge for improving the ability of innovation especially for the original one,realizing the design and innovation of new technology and manufacturing for better bionic products. | REN LuQuan LIANG YunHong | 2014 | Science China(Technological Sciences)2014，57，3： | 10 |
| 4 | PEEK modified PLA shape memory blends:towards enhanced mechanical and deformation properties显示文摘Polylactic acid(PLA)is one of the most promising shape memory polymers with outstanding biocompatibility,while poly(ether ether ketone)(PEEK)is a special engineering plastic with excellent mechanical performance.In this work,PEEK was selected to modify PLA,and a series of PLA blended with different PEEK contents(PLA/PEEK blends)were obtained.The effects of PEEK on thermodynamic,mechanical and shape memory properties of PLA/PEEK blends were investigated.The results showed that the thermal stabillity of the PL A/PEEK blend was improved with the PEEK content increase.The tensile strength reached the highest value of 20.6 MPa when the PEEK content was 10%.While the best shape memory performance occurred with the PEEK content of 15%,the shape recovery time was less than 2 s,and the shape fixation/recovery ratio was more than 99%.Furthermore,the programmable mimetic flower opening process was achieved by using PLA/PEEK blends with different PEEK content ratios.The above results indicated that the blend of an appropriate proportion of PEEK had positive effects on mechanical and deformation performances of PLA. | Lan ZHANG Zhaohua LIN Qiang ZHOU Suqian MA Yunhong LIANG Zhihui ZHANG | 2020 | Frontiers of Materials Science2020，14，2： | 8 |
| 5 | Recent progress in 4D printing of stimuli-responsive polymeric materials显示文摘4D printing is proposed based on the additive manufacturing of stimuli-responsive materials and structures,which can realize shape changing upon external stimuli.This article reviews the 4D printing methods and actuating performances of 4D printing structures based on shape memory polymers,hydrogels,liquid crystal elastomers,and electroactive polymers.This article shows that the shape morphing properties of single materials are limited,while 4D printing of composites can integrate the various driving modes of different smart materials.In the end,challenges facing 4D printing such as broadening the scope of smart materials,improving printing processes,the compatibility of printing different materials have been discussed. | MA SuQian ZHANG YunPeng WANG Meng LIANG YunHong REN Lei REN LuQuan | 2020 | Science China(Technological Sciences)2020，63，4： | 7 |
| 6 | Effects of Bionic Units in Different Scales on the Wear Behavior of Bionic Impregnated Diamond Bits显示文摘 | Zhaozhi Wang Ke Gao Youhong Sun Zhihui Zhang Shiyu Zhang Yunhong Liang Xiujuan Li Luquan Ren | 2016 | Journal of Bionic Engineering2016，13，4： | 4 |
| 7 | 4D printing of PLA/PCL shape memory composites with controllable sequential deformation显示文摘Shape memory polymers(SMPs)are a promising class of materials for biomedical applications due to their favorable mechanical properties,fast response,and good biocompatibility.However,it is difficult to achieve controllable sequential shape change for most SMPs due to their high deformation temperature and the simplex deformation process.Herein,shape memory composites based on polylactic acid(PLA)matrix and semi-crystalline linear polymer polycaprolactone(PCL)are fabricated using 4D printing technology.Compared with pure PLA,with the rise of PCL content,the 4D-printed PLA/PCL composites show decreased glass transition temperature(Tg)from 67.2 to 55.2°C.Through the precise control of the deformation condition,controllable sequential deformation with an outstanding shape memory effect can be achieved for the PLA/PCL shape memory composites.The response time of shape recovery is less than 1.2 s,and the shape fixation/recov-ery rates are above 92%.In order to simulate sequential petal opening and sequential drug releasing effects,a double-layer bionic flower and a drug release device,respectively,are presented by assembling PLA/PCL samples with different PLA/PCL ratios.The results indicate the potential applications of 4D-printed PLA/PCL composites in the field of bio-inspired robotics and biomedical devices. | Suqian Ma Zeyu Jiang Meng Wang Lan Zhang Yunhong Liang Zhihui Zhang Lei Ren Luquan Ren | 2021 | Bio-Design and Manufacturing2021，4，4： | 2 |
| 8 | High-performance Multilayer Flexible Piezoresistive Pressure Sensor with Bionic Hierarchical and Anisotropic Structure显示文摘Flexible pressure sensor that enables detection of multimodal signals has greater advantages in human–computer interaction,medical/health care,and other applications.To make a versatile flexible pressure sensor,hierarchical and anisotropy structure are key features to improve sensing performance and realize multi-signal detection.However,traditional flexible sensors usually have narrow linear range and single signal detection capability.Herein,a highly sensitive flexible piezoresistive pressure sensor which has broad linear range of pressure is developed by replicating one dimensional microstructures from reed leaf and using multilayer superposition of micropatterned polydimethylsiloxane(m-PDMS).Through superposing 4 layers of parallel micropatterned constructive substrates,the multilayer piezoresistive pressure sensor exhibits a high sensitivity of 2.54 kPa?1,a fast response time of 30 ms,and a broad linear range of 107 kPa.The flexible piezoresistive pressure sensor is also highly robust:there is no fatigue after testing for at least 1000 cycles.Due to the specific anisotropy of the micro-structure,the sensor can measure the tangential force in different directions.It permits multimode signal detection,including pressure,tangential force,and deformation.The versatile flexible pressure sensor enables effective monitoring of multisignals,it reveals great potential for medical and health care,flexible human–computer interaction,and intelligent robot. | Meng Wang Yue Yu Yunhong Liang Zhiwu Han Chunbao Liu Suqian Ma Zhaohua Lin Lei Ren | 2022 | Journal of Bionic Engineering2022，19，5： | 1 |
| 9 | A new smoothing Newton-type method for second-order cone programming problems显示文摘 | Liang Fang Guoping He Yunhong Hu | 2009 | Applied Mathematics and Computation2009，，3： | 1 |
| 10 | Fabrication of steel matrix composites locally reinforced with different ratios of TiC/TiB2 particulates using SHS reactions of Ni-Ti-B4 C and Ni-Ti- B4C-C systems during casting 显示文摘 | Yang Yafeng Wang Huiyuan Liang Yunhong | 2007 | Materials Science and Engi- neering A2007，，： | 1 |
| 11 | Preparation of Biocompatible Carboxymethyl Chitosan Nanoparticles for Delivery of Antibiotic Drug显示文摘 | Liang Zhao Bingya Zhu Yunhong Jia Wenjiu Hou Chang Su John B. Vincent | 2013 | BioMed Research International2013，，： | 1 |
| 12 | Bioinspired flexible piezoresistive sensor for high-sensitivity detection of broad pressure range显示文摘The human skin has the ability to sense tactile touch and a great range of pressures.Therefore,in prosthetic or robotic systems,it is necessary to prepare pressure sensors with high sensitivity in a wide measurement range to provide human-like tactile sensation.Herein,we developed a flexible piezoresistive pressure sensor that is highly sensitive in a broad pressure range by using lotus leaf micropatterned polydimethylsiloxane and multilayer superposition.By superposing four layers of micropatterned constructive substrates,the multilayer piezoresistive pressure sensor achieves a broad pressure range of 312 kPa,a high sensitivity of 2.525 kPa^(−1),a low limit of detection(LOD)of<12 Pa,and a fast response time of 45 ms.Compared with the traditional flexible pressure sensor,the pressure range of this sensor can be increased by at least an order of magnitude.The flexible piezoresistive pressure sensor also shows high robustness:after testing for at least 1000 cycles,it shows no sign of fatigue.More importantly,these sensors can be potentially applied in various human motion detection scenarios,including tiny pulse monitoring,throat vibration detection,and large under-feet pressure sensing.The proposed fabrication strategy may guide the design of other kinds of multifunctional sensors to improve the detection performance. | Meng Wang Hao Zhang Han Wu Suqian Ma Lei Ren Yunhong Liang Chunbao Liu Zhiwu Han | 2023 | Bio-Design and Manufacturing2023，6，3： | 1 |
| 13 | Three-dimensional VOF simulation of droplet impacting on a superhydrophobic surface显示文摘It is very important to analyze and study the motion process of droplets impacting superhydrophobic surface, which is of great significanee to understand the mechanism of superhydrophobic surface and guide the design and manufacture of superhydrophobic surface. Taking by three-dimensional volume of fluid (VOF) simulation coupling coupled level set (CLS) algorithm, on the one hand, we simulate the morphological changes in the process of droplet impingement, as well as the internal velocity and the pressure distribution;on the other hand,we focus on the effects of droplet impact velocity, surface wettability, surface tension on the dynamics of the droplets. The CLSVOF model inherits the advantages of the VOF model for accurately constructing the phase interface and inherits the advantage that the level set can accurately calculate the surface tension, which improves the accuracy of the calculation of the droplet impact on the superhydrophobic surface. The computed results distinctly demonstrated there were four stages: falling, spreading, shrinking and rebounding. The time history of each stage agreed well with the pictures captured by high-speed camera, which indicated the computational fluid dynamics scheme was effective. Moreover, the motion mechanism of the droplets impacting on the solid surface is elaborated, which was helpful to control the solid-liquid interface to achieve a variety of solid interface characteristics. | Jin Sun Qi Liu Yunhong Liang Zhaohua Lin Chunbao Liu | 2019 | Bio-Design and Manufacturing2019，2，1： | 1 |
| 14 | The pH Effect on Resonance Raman Spectra of Brilliant Yellow in Aqueous and CTAB Micella Solutions显示文摘Recently, we have developed an application of molecular spectrometric method to the exploration of the interracial properties of black soap films, using an azobenzene dye as a probe. In order to further study the problems of surface potential and microenvfronment, an effort should be made to clarify the pH controlled behavior of the structural change of azobenzene compounds in aqueous solution and on the surface of surfactant mlcella. Here, we examine the resonance Raman spectra of brilliant yellow(BY), an azobenzene derivative, in aqueous and cetyltrimethylammonium bromide(CTAB) | Zhang Yunhong, Tian Yongchi and Liang Yingqiu (Institute of Theoretical Chemistry, Jilin University, Changchun) | 1990 | Chemical Research in Chinese Universities1990，6，3： | 0 |
| 15 | 3D printed aluminum matrix composites with well-defined ordered structures of shear-induced aligned carbon fibers显示文摘Carbon fiber reinforced aluminum composites with ordered architectures of shear-induced aligned carbon fibers were fabricated by 3D printing.The microstructures of the printed and sintered samples and mechanical properties of the composites were investigated.Carbon fibers and aluminum powder were bonded together with resin.The spatial arrangement of the carbon fibers was fixed in the aluminum matrix by shear-induced alignment in the3D printing process.As a result,the elongation of the composites with a parallel arrangement of aligned fibers and the impact toughness of the composites with an orthogonal arrangement were 0.82%and 0.41 J/cm^(2),respectively,about 0.4 and 0.8 times higher than that of the random arrangement. | Yunhong Liang Han Wu Zhaohua Lin Qingping Liu Zhihui Zhang | 2022 | Nano Materials Science2022，4，4： | 0 |
| 16 | A hippocampal anti-hypertensive mechanism induced by twirling reinforcing-reducing manipulation in rats显示文摘Objective:To investigate a hippocampal anti-hypertensive mechanism induced by twirling reinforcingreducing manipulation(TRRM)using proteomics in rats.Methods:Forty-two male spontaneously hypertensive rats were randomly divided into 3 groups,and 14 Wistar-Kyoto rats were served as control group.In the twirling reinforcing(TRF)group,needles were directly inserted into the Taichong(LR 3)point,then thumbs were moved heavily forward and lightly backward for 3 min,while needles remained inserted for 17 min.In the twirling reduction(TRD)group,the same treatment was applied as in the TRF group except that the thumb moved lightly forward and heavily backward.In the model and control groups,only the corresponding grasping and fixation were applied.All interventions were conducted for 14 days.The blood pressure(BP)of all rats was measured one day before intervention and every other day after.Then hematoxylin-eosin(H&E)staining,label-free and parallel reaction monitoring proteomic techniques were used to assess hippocampal samples from each group.Results:Systolic BPs showed a significant decrease in the TRF and TRD groups compared with the model group(P<.01).In the model group,H&E staining showed obvious pathological changes in the hippocampus,while in the TRF and TRD groups,the hippocampal morphology was only slightly altered.Labelfree proteomic analysis revealed 1163 differential protein expressions between groups.Gene Ontology enrichment analysis confirmed that the differentially expressed proteins were enriched in different biological processes,cellular components,and molecular functions.Kyoto Encyclopedia of Genes and Genomes enrichment analysis showed that TRRM proteins were expressed in the serotonergic synapse pathway,renin-angiotensin system,the mitogen-activated protein kinase signaling pathway,and the peroxisome pathway,which were all also related to BP regulation.Conclusion:TRRM can significantly lower the BP of SHRs.The mode of action may be through the activation of various protein pathways in the hippocampus that are related to BP regulation. | Jiao Sun Liu Yan Yunhong Zhu Jingrong Liang Yingying Zang Tianxiao Zeng Xiaomin Hao Pui Yee Wong Qingguo Liu | 2023 | Journal of Traditional Chinese Medical Sciences2023，10，1： | 0 |
| 17 | A Stiffness-Tunable Composite with Wide Versatility and Applicability Based on Low-Melting-Point Alloys显示文摘Flexible materials are essential in bionic fields such as soft robots.However,the lack of stiffness limits the mechanical performance of soft robots and makes them difficult to develop in many extreme working conditions,such as lifting and excavation operations.To address this issue,we prepared a stiffness-tunable composite by dispersing low-melting-point alloy into thermosetting epoxy resin.A dramatic and rapid change in stiffness was achieved by changing the state of matter at lower temperatures,and accurate control of the composite modulus was achieved by controlling the temperature.When the alloy content is at 30vol%,the tensile modulus changes 41.6 times,while the compressive modulus changes 58.9 times.By applying the composite to a flexible actuator,the initial stiffness of the actuator was improved by 124 times,reaching 332 mN/mm.In addition,the use of stiffness-tunable materials in the wheel allowed for timely changes in the grounding area to improve friction.These flexible materials with manageable mechanical properties have wide applicability in fields including bionics,robotics,and sensing.Our findings provide a new approach to designing and developing flexible materials with improved stiffness and controllability. | Jiawei Xiong Bo Sun Chunbao Liu Konghua Yang Yuchao Luo Yunhong Liang Zhiwu Han Lei Ren Zhaohua Lin | 2023 | Journal of Bionic Engineering2023，20，6： | 0 |
| 18 | Pine wilt disease detection in high-resolution UAV images using object-oriented classification显示文摘Pine wilt disease(PWD)is currently one of the main causes of large-scale forest destruction.To control the spread of PWD,it is essential to detect affected pine trees quickly.This study investigated the feasibility of using the object-oriented multi-scale segmentation algorithm to identify trees discolored by PWD.We used an unmanned aerial vehicle(UAV)platform equipped with an RGB digital camera to obtain high spatial resolution images,and multiscale segmentation was applied to delineate the tree crown,coupling the use of object-oriented classification to classify trees discolored by PWD.Then,the optimal segmentation scale was implemented using the estimation of scale parameter(ESP2)plug-in.The feature space of the segmentation results was optimized,and appropriate features were selected for classification.The results showed that the optimal scale,shape,and compactness values of the tree crown segmentation algorithm were 56,0.5,and 0.8,respectively.The producer’s accuracy(PA),user’s accuracy(UA),and F1 score were 0.722,0.605,and 0.658,respectively.There were no significant classification errors in the final classification results,and the low accuracy was attributed to the low number of objects count caused by incorrect segmentation.The multi-scale segmentation and object-oriented classification method could accurately identify trees discolored by PWD with a straightforward and rapid processing.This study provides a technical method for monitoring the occurrence of PWD and identifying the discolored trees of disease using UAV-based high-resolution images. | Zhao Sun Yifu Wang Lei Pan Yunhong Xie Bo Zhang Ruiting Liang Yujun Sun | 2022 | Journal of Forestry Research2022，33，4： | 0 |
| 19 | The Novel Variable Stiffness Composite Systems with Characteristics of Repeatable High Load Bearing and Response Rate显示文摘On the base of controllable variable stiffness property,variable stiffness composites were the main components of functional materials in aerospace.However,the relatively low mechanical strength,stiffness range,and response rate restricted the application of variable stiffness composite.In this work,the novel variable stiffness composite system with characteristics of repeatable high load bearing and response rate was successfully prepared via the double-layer anisotropic structure to solve the bottlenecks of variable stiffness composites.The novel variable stiffness composite systems were composed of variable stiffness layer of polycaprolactone(PCL)and the driven layer of silicone elastomer with alcohol,which continuously changed Young’s modulus from 0.1 to 7.263 MPa(72.63 times variation)in 200 s and maintained maximum weight of 11.52 times its own weight(8.5 g).Attributed to the relatively high variable stiffness range and load bearing value of variable stiffness composite system,the repeatable response process led to the efficient high load driven as“muscle”and diversified precise grab of objects with different shapes as“gripper”,owning widespread application prospects in the field of bionics. | Zhiwei Tuo Zhaohua Lin Qian Zhao Yunhong Liang Han Wu Chang Liu ZhiWu Han | 2023 | Journal of Bionic Engineering2023，20，2： | 0 |
| 20 | Mechanical Properties of Vermicular Graphite Cast Iron Processed by Selective Laser Surface Alloying with Ultra-fine ZrO2 Ceramic Particulates显示文摘In this work, the mechanical properties and microstructures of vermicular graphite cast iron processed by selective laser surface alloying with ultra-fine ZrO_2 ceramic particulates were investigated. A particulate-reinforced metal matrix composite coating with the thickness of ~650 μm was fabricated by laser treatment on the sample surface. The particulates were uniformly distributed in the microstructure of the coating. The tensile strength and microhardness both increased with the particulate fraction, since more tensile load was transferred from the matrix to the reinforcement showing essential strengthening effect. The composite coating also sharply reduced the wear mass loss and thus improved the wear resistance. | Peng-Yu Lin Zhi-Hui Zhang Shu-Hua Kong Hong Zhou Yunhong Liang Xin Tong Lu-Quan Ren | 2016 | Acta Metallurgica Sinica(English Letters)2016，29，11： | 0 |
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