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| 1 | Medical Additive Manufacturing: From a Frontier Technology to the Research and Development of Products显示文摘1.Research and development(R&D)and the challenges of raw materials for medical additive manufacturing Raw materials for medical additive manufacturing have a wide range of commonalities that are also seen in many other fields,making them an important basis in the field of three-dimensional(3D)printing.Problems and challenges related to material types,powder properties,formability,viscoelasticity,and so forth also share common features.For example,many metal materials are used in the field of aviation,while metals,polymers,and inorganic materials are used in the field of biomedicine.The most widely used materials in biomedicine are biocompatible.Various homogeneous and non-homogeneous composites are also available for 3D printing,and impose an additional challenge in additive manufacturing;the use of heterogeneous composites in 3D printing is particularly challenging. | Guixing Qiu Wenjiang Ding Wei Tian Ling Qin Yu Zhao Lianmeng Zhang Jian Lu Daijie Chen Guangyi Yuan Chengtie Wu Bingheng Lu Ruxu Du Jimin Chen Mo Elbestawi Zhongwei Gu Dichen Li Wei Sun Yuanjin Zhao Jie He Dadi Jin Bin Liu Kai Zhang Jianmo Li Kam WLeong Dewei Zhao Dingjun Hao Yingfang Ao Xuliang Deng Huilin Yang ShaoKeh Hsu Yingqi Chen Long Li Jianping Fan Guohui Nie Yun Chen Hui Zeng Wei Chen Yuxiao Lai | 2020 | Engineering2020，6，11： | 1 |
| 2 | Development of Bioimplants with 2D, 3D, and 4D Additive Manufacturing Materials显示文摘Over the past 30 years,additive manufacturing(AM)has developed rapidly and has demonstrated great potential in biomedical applications.AM is a materials-oriented manufacturing technology,since the solidification mechanism,architecture resolution,post-treatment process,and functional application are based on the materials to be printed.However,3D printable materials are still quite limited for the fabrication of bioimplants.In this work.2D/3D AM materials for bioimplants are reviewed.Furthermore,inspired by Tai Chi,a simple yet novel soft/rigid hybrid 4D AM concept is advanced to develop complex and dynamic biological structures in the human body based on 4D printing hybrid ceramic precursor/ceramic materials that were previously developed by our group.With the development of multi-material printing technology,the development of bioimplants and soft/rigid hybrid biological structures with 2D/3D/4D AM materials can be anticipated. | Guo Liu Yunhu He Pengchao Liu Zhou Chen Xuliang Chen Lei Wan Ying Li Jian Lu | 2020 | Engineering2020，6，11： | 1 |
| 3 | InP-based directly modulated monolithic integrated few-mode transmitter显示文摘A monolithic integrated few-mode transmitter comprising of two directly modulated distributed feedback lasers and a multimode-interference-coupler-based mode converter-multiplexer with 66% mode conversion efficiency was designed and demonstrated. A fundamental TE0 mode and a first-order TE1 mode were successfully generated from the transmitter, with the output power of 4 and 5.5 mW at a pump current of around 150 mA, respectively,at the common output port. The small signal modulation bandwidth of the TE0 and TE1 channels reached 17.4 and 14.7 GHz, respectively. Error-free 2 × 10-Gbit∕s direct modulation of the two-mode transmitter was demonstrated, with a power penalty of 4.3 dB between the TE0 mode and the TE1 mode at the bit error rate of 1 × 10^(-9). | ZHAOSONG LI DAN Lu YIMING HE FANGYUAN MENG XULIANG ZHOU JIAOQING PAN | 2018 | Photonics Research2018，6，5： | 1 |
| 4 | 显示文摘 | Ming Weihua Zhao Jun Lu Xuliang | 1996 | Macromolecules1996，29，： | 1 |
| 5 | Fabrication of electrical semi-conductive SiCN ceramics by vat photopolymerization显示文摘The emergence of additive manufacturing(AM)enables ceramics to be fabricated with customized geometry,and polymer-derived ceramics(PDCs)has attracted growing attention owing to their irreplaceable advantages.The combination of 3D printing and PDCs endows the resultant ceramics with both precision and performance.However,AM of ceramics from preceramic polymers is still challenging,and insufficient investigation of functionality also limits the versatility of precursor and its derived ceramics.Herein,we propose a novel paradigm for 3D printing dense silicon carbonitride ceramic and study its electrical semiconducting properties.The formulated photosensitive precursor inks could achieve self-polymerization and cross-linking under the radiation of UV light(405 nm).The green body with intricate structures is fabricated by digital light processing(DLP).Lightweight(1.79-2.08 g cm^(-3))and low porosity(<5%)amorphous ceramics were obtained after thermal treatments.Processes of cross-linking,decomposition,and ceramization are monitored and analyzed.Furthermore,the semi-conducting behaviors of resultant ceramics are identified where the conductivity(10^(-5)-10^(-1)S m^(-1))has a monotonic correspondence with the testing temperatures(25-1000℃).The numerical relationship is fitted by exponential functions,and its conducting mechanism could be interpreted by the band tail hopping(BTH)model.This work could provide alternative solutions for the fabrication of PDCs and potentials for sensing applications. | Siyao Chen Xue Wan Jinping Li Bo Gao Xuliang Chen Songhe Meng Jian Lu | 2023 | Journal of Materials Science & Technology2023，，34： | 0 |
| 6 | 4–λ hybrid InGaAsP-Si evanescent laser array with low power consumption for on-chip optical interconnects显示文摘A 4 –λ hybrid InGaAsP-Si evanescent laser array is obtained by bonding III–V distributed feedback lasers to a silicon on insulator(SOI) substrate using a selective area metal bonding technique. Multiple wavelengths are realized by varying the width of the III–V ridge waveguide. The threshold current is less than 10 mA for all wavelength channels under continuous-wave(CW) operation at room temperature, and the lowest threshold current density is 0.76 kA∕cm2. The side mode suppression ratio(SMSR) is higher than 40 dB for all wavelength channels when the injection current is between 20 mA and 70 mA at room temperature, and the highest SMSR is up to 51 dB. A characteristic temperature of 51 K and thermal impedance of 144°C/W are achieved on average.The 4 –λ hybrid InGaAsP-Si evanescent laser array exhibits a low threshold and high SMSR under CW operation at room temperature. The low power consumption of this device makes it very attractive for on-chip optical interconnects. | YAJIE LI HONGYAN YU WENGYU YANG CHAOYANG GE PENGFEI WANG FANGYUAN MENG GUANGZHEN LUO MENGQI WANG XULIANG ZHOU DAN LU GUANGZHAO RAN JIAOQING PAN | 2019 | Photonics Research2019，7，6： | 0 |
| 7 | A hierarchical salt-rejection strategy for sustainable and high-efficiency solar-driven desalination显示文摘Solar steam generation(SSG)is widely regarded as one of the most sustainable technologies for seawater desalination.However,salt fouling severely compromises the evaporation performance and lifetime of evaporators,limiting their practical applications.Herein,we propose a hierarchical salt-rejection(HSR)strategy to prevent salt precipitation during long-term evaporation while maintaining a rapid evaporation rate,even in high-salinity brine.The salt diffusion process is segmented into three steps—insulation,branching diffusion,and arterial transport—that significantly enhance the salt-resistance properties of the evaporator.Moreover,the HSR strategy overcomes the tradeoff between salt resistance and evaporation rate.Consequently,a high evaporation rate of 2.84 kg m^(-2) h^(-1),stable evaporation for 7 days cyclic tests in 20 wt%NaCl solution,and continuous operation for 170 h in natural seawater under 1 sun illumination were achieved.Compared with control evaporators,the HSR evaporator exhibited a>54%enhancement in total water evaporation mass during 24 h continuous evaporation in 20 wt%salt water.Furthermore,a water collection device equipped with the HSR evaporator realized a high water purification rate(1.1 kg m^(-2) h^(-1)),highlighting its potential for agricultural applications. | Zhengyi Mao Xuliang Chen Yingxian Chen Junda Shen Jianpan Huang Yuhan Chen Xiaoguang Duan Yicheng Han Kannie Wai Yan Chan Jian LU | 2024 | Nano Materials Science2024，6，1： | 0 |
| 8 | An Efficient Process for Recycling Nd-Fe-B Sludge as High-Performance Sintered Magnets显示文摘Given the increasing concern regarding the global decline in rare earth reserves and the environmental burden from current wet-process recycling techniques,it is urgent to develop an efficient recycling technique for leftover sludge from the manufacturing process of neodymium-iron-boron(Nd-Fe-B)sintered magnets.In the present study,centerless grinding sludge from the Nd-Fe-B sintered magnet machining process was selected as the starting material.The sludge was subjected to a reduction-diffusion(RD)process in order to synthesize recycled neodymium magnet(Nd2Fe14B)powder;during this process,most of the valuable elements,including neodymium(Nd),praseodymium(Pr),gadolinium(Gd),dysprosium(Dy),holmium(Ho),and cobalt(Co),were recovered simultaneously.Calcium chloride(CaCl2)powder with a lower melting point was introduced into the RD process to reduce recycling cost and improve recycling efficiency.The mechanism of the reactions was investigated systematically by adjusting the reaction temperature and calcium/sludge weight ratio.It was found that single-phase Nd2Fe14B particles with good crystallinity were obtained when the calcium weight ratio(calcium/sludge)and reaction temperature were 40 wt% and 1050℃,respectively.The recovered Nd2Fe14B particles were blended with 37.7 wt% Nd4Fe14B powder to fabricate Nd-Fe-B sintered magnets with a remanence of 12.1 kG(1 G=1×10^-4T),and a coercivity of 14.6 kOe(1 Oe=79.6A·m^-1),resulting in an energy product of 34.5 MGOe.This recycling route promises a great advantage in recycling efficiency as well as in cost. | Xiaowen Yin Ming Yue Qingmei Lu Min Liu Feng Wang Yubing Qiu Weiqiang Liu Tieyong Zuo Shanshun Zha Xuliang Li Xiaofei Yi | 2020 | Engineering2020，6，2： | 0 |
| 9 | The bioelectrical properties of bone tissue显示文摘Understanding the bioelectrical properties of bone tissue is key to developing new treatment strategies for bone diseases and injuries,as well as improving the design and fabrication of scaffold implants for bone tissue engineering.The bioelectrical properties of bone tissue can be attributed to the interaction of its various cell lineages(osteocyte,osteoblast and osteoclast)with the surrounding extracellular matrix,in the presence of various biomechanical stimuli arising from routine physical activities;and is best described as a combination and overlap of dielectric,piezoelectric,pyroelectric and ferroelectric properties,together with streaming potential and electro-osmosis.There is close interdependence and interaction of the various electroactive and electrosensitive components of bone tissue,including cell membrane potential,voltage-gated ion channels,intracellular signaling pathways,and cell surface receptors,together with various matrix components such as collagen,hydroxyapatite,proteoglycans and glycosaminoglycans.It is the remarkably complex web of interactive cross-talk between the organic and non-organic components of bone that define its electrophysiological properties,which in turn exerts a profound influence on its metabolism,homeostasis and regeneration in health and disease.This has spurred increasing interest in application of electroactive scaffolds in bone tissue engineering,to recapitulate the natural electrophysiological microenvironment of healthy bone tissue to facilitate bone defect repair. | Boon Chin Heng Yunyang Bai Xiaochan Li Yanze Meng Yanhui Lu Xuehui Zhang Xuliang Deng | 2023 | Animal Models and Experimental Medicine2023，6，2： | 0 |
| 10 | Simplified Reflection Models of Representative Ground Metal Target in Millimeter Wave Passive Surveillance显示文摘For designing camouflage of ground metal target against millimeter wave(MMW) passive detections,based on the radiation and reflection theories related to MMW passive detection and an assumption of high frequency approximation,simplified models of two kinds of ground metal targets are established.Analysis indicates that the reflection from ground is the leading factor on a ground metal target's radiant temperature.In an 8-mm imaging experiment,the uneven distribution of radiant temperatures in horizontal and vertical metal plates is directly perceived.In a radiometer experiment,two positions of a radiometer device are utilized to obtain the radiant temperatures of a horizontal metal in two different grounds(made of asphalt and metal net respectively),which are 295.41 K and 301.55 K,respectively.The experimental results are close to the analytical results calculated from the proposed simplified models,which are 306 K and 296 K,respectively.According to the simplified models,different parts of a vertical plate receive incident MMW of different angles from the asphalt background.The radiant temperature of a vertical metal plate obtained from a radiometer experiment at night is 307 K,and it is in coherent with 304.22 K,the result from calculation using the simplified model of vertical plate.Both the analytic results and the experimental results agree with the uneven distribution of radiant temperature. | WENG Xiaodi LU Xuliang TIAN Yu SUI Mingxu LI Yupeng | 2013 | 高电压技术2013，39，10： | 0 |
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