Matter
·
2024
·
IF 17.3
Yizheng Tan,Yiheng Dai,Peng Zhao,Cheng Liu,Huaping Xu
Modular strategy is specialized in universality, compatibility, and simplicity. Although previous strategies still rely on highly customized processes, our research uses modular design to improve the simplicity and compatibility of shape programming. The module we used has a predefined hexagonal shape, which is mass-producible and can be transferred to a 2D substrate to produce controllable deformation in situ through nonpattern stimuli. This process can be finished in seconds due to the great responsiveness of diselenide bonds and can be applied to different substrates for actuation and origami self-folding. Our research enables modular shape programming strategy without using any patterned stimuli and reveals the principle of how simple shape design of modules determines the pattern of stress, opening a new avenue for stress manipulation and shape programming.
研究领域:
材料科学
·
生物工程
✓ 已验证
产品关联
DOI
高影响因子
Frontiers in Built Environment
·
2024
·
IF 2.2
Mariapaola Riggio,Alberto Dalle Vedove,Maurizio Piazza
The urgent need to reduce carbon emissions in the construction sector has driven the exploration of circular economy practices in the built environment. Nevertheless, the implementation of circular economy principles in projects remains limited. This research contributes to bridging this gap by introducing a project proposal that establishes a typology of modular systems designed for easy assembly, disassembly, and reuse. Specifically, the proposal focuses on load-bearing wood furniture modules (FMs) as an intermediate solution between planar and volumetric modules. These FMs expand the structural wall’s volume, facilitating the integration of services, storage, and appliances. This addresses scenarios where swift building deployment is required. The proposed modular dimension enhances transportation efficiency compared to volumetric solutions and simplifies construction by eliminating the need for temporary stabilization, as seen in planar systems. Standardization and “separability” of each component within the FM allows for easy integration and maintenance. Special attention is paid to the timber connection systems within and between FMs facilitating easy assembly, and disassembly for future reuse. The adaptability of the FM concept is demonstrated through versatile compositions and layouts, facilitating space reconfiguration. While the technical feasibility of the FM-based system is demonstrated, further research is needed to address regional and cultural variations and customize the system to different contexts. The study emphasizes the potential of FMs as a solution for buildings aligned with circular economy principles and highlights the importance of continued research and development in this field.
研究领域:
建筑结构工程
·
模块化建筑设计
·
可持续建筑材料
·
循环经济策略
·
装配式建筑技术
✓ 已验证
DOI
高影响因子
Energy Technology
·
2024
·
IF 3.6
Dongyin Niu,Tiantian Zhang,Xuedan Zhang,Yufei Tan,Lukai Zhai
Under the background of vigorously promoting clean heating, the introduction of phase-change energy storage technology into heating systems has become a new hot issue. In this study, a novel KAl(SO 4 ) 2 ·12H 2 O/expanded graphite (EG) shape-stabilized composite phase-change material (PCM), with a melting temperature of 91.6 °C, latent heat of 245.7 kJ kg −1 , and high heat conductivity of 2.07 W m −1 K −1 , is prepared to manufacture a PCM-based module for space heating. This phase-change electric heating module is developed, and its heat storage and release characteristics are investigated through experimental and numerical studies. The numerical model is validated by experimental results. In view of the numerical simulation, the structure of the module is optimized and its thermal performance is studied. Based on the optimized module, a peak-valley time-of-use (TOU) electric heating module is finally proposed. It is revealed that the module exhibits good thermal performance and is capable of satisfying the indoor heating demand. The effective heat storage and release duration is 8.12 and 15.34 h, which can perfectly realize the operating mode under the “peak-valley TOU electricity” mechanism. In this study, it is demonstrated that peak–valley electric energy storage heating devices have broad prospects in building space heating and provides reference for future application.
研究领域:
能源工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2021
·
IF 7.514
Mingyue Shen,Lichun Liu,Fan Zhang,Yujie Jiang,Zhengbo Huang,Jianhua Xie,Yadong Zhong,Shaoping Nie,Mingyong Xie
The formation mechanism of furan has been studied extensively in model systems, however, furan formation in real foods are complex and far from being fully understood. In this study, the effects of acid-regulating agent (citric acid), sugar addition (glucose, fructose and sucrose) and thickening agents (xanthan gum, κ-carrageenan and pectin) on furan levels in strawberry jams were studied; meanwhile the formation pathway of furan in canned strawberry jam was proposed by carbon module labeling (CAMOLA) technique. Our results suggested low pH promoted furan formation in strawberry jam. Besides, fructose produces more furans than sucrose and glucose, and the addition of xanthan gum reduced furan levels significantly. The kinetic data showed that ascorbic and dehydroascorbic acid degradation followed first-order kinetics while rate of furan formation followed zero-order kinetics. This study presented the possibility of mitigating furan formation in canned strawberry jams by optimization of processing parameters and addition of xanthan gum.
研究领域:
食品科学
·
化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Yang Zhang,Jiacheng Hu,Xiaoxia Guo,Xiaoguang Li,Jiawen Lin,Zhixu Zhang,Yilei Yue,Wenqi Shen,Xiaoqi Li,Ziyi Wang,Simiao Sun,Song Lin,Weibiao Li,Linan Xu,Haitao Li
The design of an efficient solar energy collector for solar-thermal-driven water purification and power generation is a promising strategy to concurrently mitigate the shortage of fresh water and energy crises. However, harvesting low-grade thermal energy in an eco-friendly and cost-effective manner through solar-thermal materials for water evaporation and electric cogeneration remains challenging. Herein, we demonstrate a dual-functional device integrating solar-thermally driven water purification and thermo-induced power generation. This typical design, fabricated via polydopamine (PDA) tightly deposited onto melamine sponges (PDA@Sponge) via H-bonds, along with a thermoelectric generator (PDA@Sponge/TEG), showcases superior solar-thermal-driven dual-functional application. The critically structurally adjustable PDA@Sponge possesses excellent homogeneity and stability, weakening interfacial hydrogen bonding between water molecules, favoring the evaporation and overflow of water molecules. The optimal serrated design achieves a water evaporation rate of up to ∼1.50 kg −2 h −1 , with an efficiency of ∼ 94.04 % under one sun, surpassing the most of previous reports, owing to its special tip thermal localization effect and rational water transportation management. Simultaneously, the designed PDA@Sponge/TEG yields an open-circuit voltage and short circuit current of 55 mV and 22 mA, respectively, along with a maximal output power of 162 μW (40.5 μW/cm 2 ) at a load resistance of 7.5 Ω, under one sun and room temperature. Notably, such a device, after multiple series connections, can charge a capacitor to 1.5 V within 1 min, capable of powering low-energy electronic devices such as smartwatches and LED lights. By efficiently integrating of multiple solar-thermal-driven processes, our research promotes the design of multifunctional devices to promise an approach for desalinating seawater, purifying wastewater, and powering low-energy electronics, especially in remote areas lacking power stations and/or water treatment facilities.
研究领域:
材料科学
·
能源技术
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING RESEARCH & DESIGN
·
2020
·
IF 3.35
Bo-Zhi Chen,Xiaohui Ju,Ning Liu,Chang-Hui Chu,Jin-Peng Lu,Chen Wang,Shi-Peng Sun
Few studies have reported on the detail of the mass production process of nanofiltration (NF) membranes and modules due to technical confidentiality. This work presents a procedure of fabrication of NF membranes and modules on the pilot scale. Thin film composite (TFC) NF flat-sheet membranes of 300 mm width were continuously fabricated via custom-designed equipment. The fabrication parameters and their effects on NF performance were systematically investigated. The optimized conditions parameters were achieved for excellent NF modules’ performance. The modules show over 75 L m −2 h −1 flux at 6 bar and over 95% MgSO 4 rejection. This study may provide insightful guidelines for the scale-up of NF membranes for water treatment and other applications.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
Materials Futures
·
2024
·Vol. 3
·期 2
·025001
·
IF 12
Junfeng Xiao,Mengxing Zhang,Fei Zhai,Hongrui Wei,Sen Liu,Peng Wang,Zhiyang Liu,Zhongying Ji,Xiaolong Wang
Three-dimensional (3D) printing allows for the creation of complex, layered structures with precise micro and macro architectures that are not achievable through traditional methods. By designing 3D structures with geometric precision, it is possible to achieve selective regulation of mechanical properties, enabling efficient dissipation of mechanical energy. In this study, a series of modular samples inspired by the Bouligand structure were designed and produced using a direct ink writing system, along with a classical printable polydimethylsiloxane ink. By altering the angles of filaments in adjacent layers (from 30° to 90°) and the filament spacing during printing (from 0.8 mm to 2.4 mm), the mechanical properties of these modular samples can be adjusted. Compression mechanical testing revealed that the 3D printed modular Bouligand structures exhibit stress-strain responses that enable multiple adjustments of the elastic modulus from 0.06 MPa to over 0.8 MPa. The mechanical properties were adjusted more than 10 times in printed samples prepared using uniform materials. The gradient control mechanism of mechanical properties during this process was analyzed using finite element analysis. Finally, 3D printed customized modular Bouligand structures can be assembled to create an array with Bouligand structures displaying various orientations and interlayer details tailored to specific requirements. By decomposing the original Bouligand structure and then assembling the modular samples into a specialized array, this research aims to provide parameters for achieving gradient energy absorption structures through modular 3D printing.
研究领域:
材料科学
·
力学工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Wenshuang Tian,Xiong Zheng,Yang Xiao,Guangzhao Qin
Photovoltaic (PV) power generation technology is currently one of the most effective ways in solar energy utilization, while current PV panels are facing a serious issue of electrical efficiency reduction and potential structural damage caused by the accumulated heat during operation. To solve this issue, we proposed a novel hybrid system containing PV cell, thermoelectric generation (TEG) module, and phase change composite (PCC), which can achieve a power enhancement of 29.8 % compared with individual PV cell. The fabricated chitosan-based PCC has a high anisotropy degree of 4.10 and melting enthalpy of 133.2 kJ·kg −1 , which promote the effective heat transport and storage between PV cell and TEG module, and the excellent mechanical strength and thermal stability ensures its long-term endurance. Owing to excellent thermal properties of the PCC, not only the power of PV cell is increased by 55.9 mW, but the TEG module also continuously outputs 4.1 mW of power. Besides, the hybrid system can produce 5.185 kW·h·m −2 electricity per day in the actual environment. Looking ahead, the integration of advanced materials and hybrid systems like the PV + PCC + TEG approach holds great promise for further enhancing solar energy efficiency and sustainability in real-world applications.
研究领域:
材料科学
·
能源工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Nano Today
·
2024
·
IF 13.2
Huayang Zhang,Shangzhen Xie,Guangyi Tian,Yihang Zhang,Zhiguang Guo
With global water scarcity a growing problem, fog harvesting technology has emerged as an effective solution. Industrial development and population growth have exacerbated the need for efficient, dismantlable, and assembled fog harvesting devices, as well as the requirement to optimize the droplet capture-transport relationship. In this study, a novel modular bionic 3D tree-like structure for fog harvesting system (3D-TSFHS) was developed to achieve rapid droplet transport by means of Nepenthes-inspired superslip leaves (SSLs). In addition, aluminum (Al) cones with superhydrophilic and superhydrophobic (SHL-SHB) patterns were prepared to enhance the droplet capture efficiency by drawing on the special wettability and structural features of various plants and animals such as cactus, spider silk, desert beetles, lizards and camphor leaves. This artificial design significantly enhances the overall capture and transport relationship. The resulting embedded superslip leaves Al cone fog harvesting (E-SLAC-FH) dramatically improves the fog harvesting efficiency and exhibits excellent durability. Assembling this fog harvesting into a 3D-TSFHS achieves a high fog harvesting efficiency of 0.462 g∙cm −2 ∙min −1 . The system's modular design and its exceptional durability ensure its potential for a wide range of applications in a variety of real-world scenarios.
研究领域:
材料科学
·
仿生学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Zhubin Yao,Jiekai Xie,Tieqiang Fu,Yunjun Luo,Xiaoqing Yang
Mainstream phase change material (PCM) for the thermal management of battery modules has been suffering from the leakage issue due to the weak capillary condensation from its micron-scaled polymer framework. Therefore, in this work, we design a high-stable and leakage-proof composite PCM (CPCM) by in-situ constructing a nano-scaled resorcinol-furfural polymer framework (RF-PF) in PCM via a one-pot strategy. Compared to classical micron-scaled framework of epoxy resin, the nano-scaled RF-PF stacks into a three-dimensionally mesoporous structure, and thus provides a much more intensive adsorbability towards PCM to prevent leakage. The mass retention rate of the RF-PF-based CPCM (RF-CPCM) during the leakage tests is up to 99.84 wt%. Combining with the suitable thermo-physical properties including a phase change enthalpy of 107.18 J g −1 , phase change temperature region of 40– ∼ 55 °C and thermal conductivity of 1.58 W m −1 K −1 , the RF-CPCM demonstrates effective and stable thermal management performances towards the pouch and cylindrical battery modules. For example, the temperature of the pouch battery module can be controlled below 41.15, 44.16 and 46.82 °C during 0.5-C, 1-C and 2-C discharges, respectively. During the accelerated aging test, the leakage trace appearing on the traditional CPCM module, is effectively overcome in the RF-CPCM module.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Ziyue Gao,Minghao Li,Haoxu Yu,Shuai Huang,Faze Chen
Spontaneous liquid transport is increasingly being applied in various fields such as microfluidics, fuel cells, phase change heat transfer, water harvesting, etc. However, long-distance spontaneous liquid transport with path-customizable motion trajectories is still challenging. Drawing multi-inspirations from the wedge-shaped structures of iris petals, the continuous structures of bamboo joints, and the microgroove structures of Nepenthes mouth edge, we fabricate a modular, pump-free biomimetic liquid transport platform by 3D printing and surface modification. The platform is composed of sequential wedge notches, and a crescent-shaped groove is designed at the joint of every two connected wedge structures. The platform is characterized by path-customizable liquid transport trajectories and can be used to achieve long-distance liquid transport without the need of external energy fields, and the multi-level nested structures along the depth significantly facilitates the liquid transport. Experimental study and theoretical force analysis show that the crescent-shaped grooves enable the liquid to overcome joint barriers by converting potential energy accumulated at joints into kinetic energy, achieving a maximum velocity of 18 mm/s. Taking advantage of the flexibility of 3D printing and long-distance transport capability, the modular structure of the platform enables customization of the transport distance and trajectory. By assembling 14 bamboo-like wedge-shaped units in series, we realized a transport distance up to 350 mm, which could be further increased by connecting more units. Furthermore, we develop various modular and multifunctional liquid transport platforms for anti-gravity transport, liquid diversion, and customized transport trajectories, which demonstrate that our design strategy could be an available solution for path-customizable liquids transport in fields like bio-sensing, fuel cells, etc.
研究领域:
微流控技术
·
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Xiaokang Deng,Yukun Ren,Likai Hou,Weiyu Liu,Yankai Jia,Hongyuan Jiang
Microfiber modules with controllable lengths emerged as novel biomimetic platforms and are significant for many tissue engineering applications. However, accurately controlling the length of microfibers on the scale of millimeter or even micrometer still remains challenging. Here, a novel and scalable strategy to generate microfiber modules with precisely tunable lengths ranging from 100 to 3500 μm via an alternating current (AC) electric field is presented. To control the microfiber length, double-emulsion droplets containing a chelating agent (sodium citrate) as a spacing node are first uniformly embedded in the microfibers in a controllable spatial arrangement. This process is precisely tuned by adjusting the flow rates, thus, tailoring the resulting multicompartmental microfiber structure. Next, an AC voltage signal is used to trigger the electric field-induced cutting process, where the time-averaged electrical force acting on the induced bipolar charge from the Maxwell–Wagner structural polarization mechanism breaks the stress balance at the interfaces, rupturing the double-emulsion droplets, and resulting in the burst release of the encapsulated chelating agents into the hydrogel cavity. The outer hydrogel shell is quickly dissolved by a chemical reaction, cutting the long fiber into a series of microfiber units of given length. Furthermore, adding magnetic nanoparticles endows magnetic functionality with these microfiber modules, which are allowed to serve as micromotors and building blocks. This electro-induced cutting method provides a facile strategy for the fabrication of microfibers with desired lengths, showing considerable promise for various chemical and biological applications.
研究领域:
生物医学工程
·
组织工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）