Coaxial Method Research Articles

Non-Destructive Damage Detection of Structural Joint by Coaxial Correlation Method in 6D Space

Failure of joints can lead to structural collapse. It is vital to monitor joint stiffness during operation to prevent such failures. This paper proposes a novel method for the quality assessment of structural joints using coaxial correlation in 6D space. Coaxially placed 6D sensors on either side of the joint implemented by 3D accelerometers and 3D gyroscopes with wide frequency range, automatic synchronisation between the input signal and receivers and response signal averaging are presented. The root mean square (RMS) value from the obtained signals convolution is proposed as a measure of the similarity between two signals for monitoring joint degradation. The method’s effectiveness was tested on steel beam splice connection, where it was found that the RMS of convolution signals in 6D space showed a direct correlation between the calculated RMS value in X, Y, GX, and GY axes directions and the stiffness grades of the joint. The paper concludes that the nature of the RMS during the degradation of the joint may change in different axes, and wrongly chosen axes may lead to wrong conclusions regarding the state of the investigated joint, especially in the case of complex joints, so that the measurements in 6D provide higher reliability of the result interpretation.

Plasma characteristics of a novel coaxial laser-plasma hybrid welding of Ti alloy

A novel coaxial laser-plasma hybrid welding method defined as “laser-soft plasma coaxial hybrid welding” was developed and studied. The plasma characteristics evolution, including plasma morphology, static electrical characteristic, and physical information of this welding method, was studied with the based material of TC4 alloy. Laser welding and plasma welding were carried out and used as comparative experiments. The plasma morphology of hybrid welding combines the characteristics of laser-induced plasma and arc plasma. The static electrical characteristic indicates that laser and plasma interact and influence each other but with different mechanisms under different current conditions. Physical information such as plasma electron temperature and ion density show that composite plasma can rapidly increase the heat source energy and ionization rate. To sum up, the coaxial plasma arc can increase the laser effect and redistribute the heat of the compound heat source, leading to a widened bead weld and better welding gap adaptability. This work provides an effective method and reference for hybrid welding process design and control in the practical industry.

Preparation of site-specific Z-scheme g-C3N4/PAN/PANI@LaFeO3 cable nanofiber membranes by coaxial electrospinning: Enhancing filtration and photocatalysis performance

The coaxial electrospinning method for preparation of g-C3N4/polyacrylonitrile (PAN)/polyaniline (PANI)@LaFeO3 cable fiber membrane (PC@PL) was designed for adsorption-filtration-photodegradation of pollutants. A series of characterization results show that LaFeO3 and g-C3N4 nanoparticles (NPs) are respectively loaded in the inner and outer layers of PAN/PANI composite fibers to construct the site-specific Z-type heterojunction system with spatially separated morphologies. The PANI in cable not only possesses abundant exposed amino/imino functional groups for adsorption of contaminant molecules but also due to the excellent electrical conductivity works as a redox medium for collecting and consuming the electrons and holes from LaFeO3 and g-C3N4, which can efficiently promote photo-generated charge carriers separation and improve the catalytic performance. Further investigations demonstrate that as a photo-Fenton catalyst LaFeO3 in PC@PL catalyzes/activates the H2O2 generated in situ by LaFeO3/g-C3N4, further enhancing the decontamination efficiency of the PC@PL. The porous, hydrophilic, antifouling, flexible and reusable properties of the PC@PL membrane significantly enhance the mass transfer efficiency of reactants by filtration effect and increase the amount of dissolved oxygen, thus producing massive •OH for degradation of pollutants, which maintains the water flux (1184 L m−2. h−1 (LMH)) and the rejection rate (98.5%). Profiting from its unique synergistic effect of adsorption, photo-Fenton and filtration, PC@PL exhibits wonderful self-cleaning performance and distinguished removal rate for methylene blue (97.0%), methyl violet (94.3%), ciprofloxacin (87.6%) and acetamiprid (88.9%) within 75 min, disinfection (100% Escherichia coli (E. coli) and 80% Staphylococcus aureus (S.aureus) inactivation)) and excellent cycle stability.

One Pot Self-Assembling Fe@PANI Core–Shell Nanowires for Radar Absorption Application

The one-pot process, which combines the polymerization of polyaniline (i.e., PANI) with subsequent reduction of iron nanowire (i.e., Fe NW) under a magnetic field, was developed to produce Fe@PANI core-shell nanowires. The synthesized nanowires with various PANI additions (0-30 wt.%) were characterized and used as microwave absorbers. Epoxy composites with 10 wt.% absorbers were prepared and examined using the coaxial method to reveal their microwave absorbing performance. Experimental results showed that the Fe NWs with PANI additions (0-30 wt.%) had average diameters ranging from 124.72 to 309.73 nm. As PANI addition increases, the α-Fe phase content and the grain size decrease, while the specific surface area increases. The nanowire-added composites exhibited superior microwave absorption performance with wide effective absorption bandwidths. Among them, Fe@PANI-90/10 exhibits the best overall microwave absorption performance. With a thickness of 2.3 mm, effective absorption bandwidth was the widest and reached 3.73 GHz, ranging from 9.73 to 13.46 GHz. Whereas with a thickness of 5.4 mm, Fe@PANI-90/10 reached the best reflection loss of -31.87 dB at 4.53 GHz.

Electrosprayed trilayer poly (d,l-lactide-co-glycolide) nanoparticles for the controlled co-delivery of a SGLT2 inhibitor and a thiazide-like diuretic

Coaxial electrospray is an advantageous technique for the fabrication of multidrug-releasing nanocarriers because it enables precise control over particle size and size distribution, limits initial burst release, and has mild preparation conditions. In this work, a coaxial electrospray synthesis method is described achieving nearly 100% layered co-encapsulation of dapagliflozin and indapamide, two drugs treating type 2 diabetes and hypertension, into biodegradable poly (d,l-lactide-co-glicolide) (PLGA) nanoparticles. Scanning electron microscopy showed smooth and elliptic morphology of 708.5–727.7 nm in diameter. Transmission electron microscopy revealed nanoparticles with a trilayer configuration where the inner layer and the middle layer are PLGA with either one of the drugs and the outer layer is PLGA only. Fourier transform infrared spectroscopy confirmed the presence of PLGA, dapagliflozin, and indapamide in all the evaluated formulations. The in vitro release of the two drugs from PLGA carriers in phosphate-buffered saline simulating gastric and intestinal conditions was investigated over seven days. The results demonstrated the sustained and prolonged discharge of dapagliflozin and indapamide from trilayer structures in comparison with that of monolayer NPs. In optimal trilayer structures, 90% dapagliflozin and indapamide were released after 120 and 144 h, respectively, which was 5–6 times slower than monolayer particles. This study indicates that multiple drugs employed for treating type 2 diabetes and hypertension, two pathologies often associated together, can effectively be co-encapsulated in a protective shell of PLGA for therapeutically-advantageous controlled release.

Structural and magnetic properties of Ni/C core–shell nanofibers prepared by one step co-axial electrospinning method

Structural and magnetic properties of Ni/C core–shell nanofibers prepared by one step co-axial electrospinning method

Determination of the Accuracy of the Straight Bevel Gear Profiles by a Novel Optical Coaxial Multi-Ring Measurement Method.

Straight bevel gears are widely used in mining equipment, ships, heavy industrial equipment, and other fields due to their high capacity and robust transmission. Accurate measurements are essential in order to determine the quality of bevel gears. We propose a method for measuring the accuracy of the top surface profile of the straight bevel gear teeth based on binocular visual technology, computer graphics, error theory, and statistical calculations. In our method, multiple measurement circles are established at equal intervals from the small end of the top surface of the gear tooth to the large end, and the coordinates of the intersection points of these circles with the tooth top edge lines of the gear teeth are extracted. The coordinates of these intersections are fitted to the top surface of the tooth based on NURBS surface theory. The surface profile error between the fitted top surface of the tooth and the designed surface is measured and determined based on the product use requirements, and if this is less than a given threshold, the product is acceptable. With a module of 5 and an eight-level precision, such as the straight bevel gear, the minimum surface profile error measured was -0.0026 mm. These results demonstrate that our method can be used to measure surface profile errors in the straight bevel gears, which will broaden the field of in-depth measurements for the straight bevel gears.

Coaxial electro-spun stretchable nanofiber electrode at wide electrochemical voltage

Flexible supercapacitors have important implications in the field of smart clothing and wearables due to the ultra-fast charging/discharging rate, long cycle life, environmental friendliness and sustainability. However, a simple method is lacking to synthesize wearable electrodes with both wide electrochemical voltage and high capacitance performance in one step. A coaxial electrospinning method is applied herein for preparation of self-supported nanofiber electrode with polycaprolactone (PCL) as the core and Na-MnO2 as the sheath combined with impregnation of acid-modified carbon nanotubes (CNTs). Na-MnO2 prepared by hydrothermal method provides extra pseudo-capacitance and wide working window, polycaprolactone (PCL) and acid-modified CNTs further guarantee the stretchability and electrical conductivity. The stretchable symmetric supercapacitors based on the nanofiber electrodes with elongation at break of 62.39 % are further assembled with a capacitance of 0.655 mF/cm2 at 100 mV/s and excellent tensile properties at the wide working voltage of 0–1.2 V. The stretchability and wide voltage of the devices constructed herein only by one-step core-shell spinning demonstrate the great potential of the doped MnO2-based nanofiber for applications in wearable energy storage field.

Numerical simulation of the three-sleeper asynchronous tamping operation of ballast bed based on the virtual unit module and polyhedral ballast model

Reasonable asynchronous tamping operation plays an important role in improving and maintaining the performance of the ballast bed. In studies conducted so far, constant velocity or angular velocity was applied to simulate the movement of tamping picks. This is in total contrast to the actual situation. For better simulation of three-sleeper asynchronous tamping operation, an innovative method of “plane reconstruction and space fusion” for rapid construction of polyhedral ballast particles was first proposed. The asynchronous squeezing of tamping picks was attained with the help of the coaxial rotation method for different bodies and a virtual unit module was developed. Then, a new relative velocity friction model was utilized to analyze the contact force inside the ballast bed. Finally, the coupling model of three-sleeper asynchronous tamping machine-ballasted track was established and verified. The results showed that the penetration stage has the greatest impact on the compactness of ballast at the bottom of the sleeper. The void ratio is relatively small, the elasticity and settlement of the ballast bed after tamping are minimum when the track lifting amount is 30 mm and the squeezing force is 7.8kN, and the tamping effect is the optimal.

Electrospun Membranes Anchored with g-C3N4/MoS2 for Highly Efficient Photocatalytic Degradation of Aflatoxin B1 under Visible Light.

The degradation of aflatoxin (AF) is a topic that always exists along with the food and feed industry. Photocatalytic degradation as an advanced oxidation technology has many benefits, including complete inorganic degradation, no secondary contamination, ease of activity under moderate conditions, and low cost compared with traditional physical, chemical, and biological strategies. However, photocatalysts are usually dispersed during photocatalytic reactions, resulting in energy and time consumption in the separation process. There is even a potential secondary pollution problem from the perspective of food safety. In this regard, three electrospun membranes anchored with g-C3N4/MoS2 composites were prepared for highly efficient photocatalytic degradation of aflatoxin B1 (AFB1) under visible light. These photocatalytic membranes were characterized by XRD, SEM, TEM, FTIR, and XPS. The factors influencing the degradation efficiency of AFB1, including pH values and initial concentrations, were also probed. The three kinds of photocatalytic membranes all exhibited excellent ability to degrade AFB1. Among them, the photocatalytic degradation efficiency of the photocatalytic membranes prepared by the coaxial methods reached 96.8%. The experiment is with an initial concentration of 0.5 μg/mL (500 PPb) after 60 min under visible light irradiation. The mechanism of degradation of AFB1 was also proposed based on active species trapping experiments. Moreover, the prepared photocatalytic membranes exhibited excellent photocatalytic activity even after five-fold use in the degradation of AFB1. These studies showed that electrospun membranes anchored with g-C3N4/MoS2 composites have a high photocatalytic ability which is easily removed from the reacted medium for reuse. Thereby, our study offers a highly effective, economical, and green solution for AFB1 degradation in the foodstuff for practical application.

Modulus-Modulated All-Organic Core-Shell Nanofiber with Remarkable Piezoelectricity for Energy Harvesting and Condition Monitoring.

The low piezoelectricity of piezoelectric polymers significantly restricts their applications. Introducing inorganic fillers can slightly improve the piezoelectricity of polymers, whereas it is usually at the cost of flexibility and durability. In this work, using a modulus-modulated core-shell structure strategy, all-organic nanofibers with remarkable piezoelectricity were designed and prepared by a coaxial electrospinning method. It was surprisingly found that the introduction of a nonpiezoelectric polymeric core (e.g., polycarbonate, PC) can result in 110% piezoelectric coefficient (d33) enhancement in a poly(vinylidenefluoride-co-trifluoroethylene) (PVDF-TrFE) nanofiber. Accordingly, the all-organic PVDF-TrFE@PC core-shell nanofiber exhibits record-high energy-harvesting performance (i.e., 126 V output voltage, 710 mW m-2 power density) among the reported organic piezoelectric materials. In addition, the excellent sensing capability of the core-shell nanofiber enabled us to develop a wireless vibration monitoring and analyzing system, which realizes the real-time vibration detection of a power transformer.

Multilayer rose-like CoS2-MoS2 composites with high microwave absorption performance

Two-dimensional materials formed through self-assembly of transition metal sulfides (TMDs) have shown potential applications for microwave absorption. In this paper, a new and simple strategy was demonstrated to prepare CoS2-MoS2 sulfides binary composites, with a heterogeneous nanoflower structure, by using a self-assembly hydrothermal reaction process. PVP is used as a surfactant to modulate the interface between CoS2 and MoS2, thus enhancing interfacial polarization and creating a unique multilayer rose-like structure. Microwave absorption performance of the samples was calculated according the electromagnetic parameters measured by using the coaxial method. The samples treated under optimized conditions exhibited a reflection loss of −71.56 dB at a thickness of 3.62 mm with an effective absorption bandwidth of 2.56 GHz.

One-step coaxial spinning of core-sheath hydrogel fibers for stretchable ionic strain sensors

High-strength, highly conductive, and stretchable conductive fibers are essential for the development of flexible electronic devices. Here, we develop a continuous coaxial wet-spinning method to fabricate stretchable, conductive, and freeze-resistant hydrogel fibers with a core-sheath structure. The core is a supramolecular hydrogel, poly (APhe-co-AAm) (PAPAM), obtained by radical polymerization of acrylamide (AAm) and acryloyl-l-phenylalanine (APhe), and the sheath consists of PVDF-HFP and PU with hydrochloric acid as the coagulation bath. The hydrogel fibers exhibit excellent mechanical properties with a tensile strength of 3.1 MPa and elongation at a break of 750 %. Hydrochloric acid plays two roles in this system: one is to promote hydrophobic association and hydrogen bond formation and improves mechanical properties, and the other is to provide plentiful ions to confer excellent electrical conductivity (10.59 S m−1) and freezing resistance (-20 °C). The application of fiber strain sensors for detecting human motion and pressure sensing demonstrates great potential as wearable electronic devices.

Multifunctional In-Situ Testing Device for Investigating the Service Performance of Materials

To obtain the change rule of material/structure service performance under complex working conditions, this study developed a material/structure mechanical property testing device with multi-load and multi-physics loading functions. The features of this device include its ability to realize the composite mechanical loading of three loads (tension/compression–bending–torsion), as well as physical field loading, such as current field, magnetic field, and thermal field, to realistically simulate the actual service conditions of materials/structures. To monitor the surface topography change, temperature, and strain distribution of the specimen in real-time, various in-situ monitoring methods, including microscopic imaging, infrared thermal imaging, and digital image correlation method, were integrated into the device. To realize multi-load composite loading, a six-degree-of-freedom parallel drive platform was adopted in the device, and its control system was developed with a distributed double-layer structure to realize the closed-loop control of any combination of load forms. All functional modules of the device were calibrated, and a coaxial calibration method based on a six-dimensional force sensor was proposed. Lastly, several tests were performed to evaluate the effectiveness of the proposed device functions, and the test results revealed the broad application prospects of the device.

Novel Direct Yaw Moment Control of Multi-Wheel Hub Motor Driven Vehicles for Improving Mobility and Stability

This paper proposes a novel direct yaw moment control algorithm for improving the mobility and stability of eight-wheel independently drive (8WID) electric vehicles (EVs) in steering condition. This algorithm adopts a hierarchical structure consisting of an upper layer and a lower layer. Firstly, a modified desired yaw rate is proposed, which is obtained by a two-degree-of-freedom (2DOF) vehicle dynamic model and adjusted by different working conditions, as the control target of the upper controller. After that, the fuzzy PI control is adopted here to optimize the PI parameters in real-time. The fuzzy rules is determined by the sideslip angle and yaw rate error. The lower layer is functionalized to realize the anti-slip control, which observes the total disturbance of the wheel system by extended state observer (ESO) and utilizes two sliding mode controllers by applying the backstepping method. Meanwhile, the consistent coaxial method is applied to keep the torque adjustment of coaxial motors equal to maintain the yaw moment unchanged. Finally, the proposed control strategy is validated through hardware-in-loop real-time simulation and a prototyped vehicle test. The results illustrate that the proposed algorithm effectively improves vehicle mobility and stability.

Dynamic Evolution of Cardiac Function and Glucose and Lipid Metabolism in Ovariectomized Rats and the Intervention Effect of Erxian Decoction.

Abnormal changes in cardiac function have been reported in menopausal women, but there are few clinical studies on this topic. Erxian decoction (EXD) is a classic prescription that is widely used in the treatment of female menopausal diseases. The purpose of this study was to investigate the dynamic evolution of cardiac function and glucose and lipid metabolism in ovariectomized (OVX) rats and the intervention effect of EXD. The OVX climacteric rat model was established by bilateral ovariectomy. After successful modeling, the rats were randomly divided into four groups: the sham operation (SHAM) group (equal volumes of purified water), OVX group (equal volumes of purified water), estradiol (E2) group (1.8 × 10-4 g/kg), and EXD group (9 g/kg). Each group of rats was treated for 16 weeks. At the 4th, 8th, 12th, and 16th weeks after treatment, the cardiac function of the rats in each group was evaluated by ultrasound. The coaxial method was used to measure blood pressure (BP). Serum endothelin-1 (ET-1) and angiotensin-2 (Ang II) levels were determined by the enzyme-linked immunosorbent assay (ELISA). The strip method was used to measure fasting blood glucose (FBG). The serum total cholesterol (TC) and triglyceride (TG) levels of rats were measured with the oxidase method. Direct methods were used to measure serum high-density lipoprotein (HDL-C) and low-density lipoprotein (LDL-C) levels. At week 16 of dosing, serum E2 levels were determined by E2 radioimmunoassay. The myocardium and uterus of the rats in each group were stained with HE (hematoxylin-eosin). The ultrastructure of the rat myocardium was observed by electron microscopy. After the 16th week of treatment, the serum E2 level decreased (P < 0.05), and the uterus was atrophied in OVX rats. The cardiac ejection fraction (EF%) decreased at 4 weeks after treatment, and systolic and diastolic function decreased after 12 weeks. After the 16th week, the EF%, which reflects the "pump" function of the heart, decreased significantly (P < 0.05 or P < 0.01). At the 4th, 8th, 12th, and 16th weeks of treatment, the systolic blood pressure (SBP), diastolic blood pressure (DBP), and mean pressure (MBP) of the rats in the OVX group increased with time (P < 0.05 or P < 0.01). The serum ET-1 and Ang II levels of rats in the OVX group increased (P < 0.05 or P < 0.01). In the OVX group, FBG was increased (P < 0.05 or P < 0.01), and blood lipids, especially LDL-C, were significantly increased (P < 0.05 or P < 0.01). After the 16th week of treatment, the myocardial tissue of OVX rats showed obvious pathological changes. EXD significantly increased serum E2 levels (P < 0.01), decreased ET-1 and Ang II levels (P < 0.01), reduced the cardiac function risk factors BP, FBG, and blood lipids, and significantly improved cardiac function and structural changes in OVX rats (P < 0.05 or P < 0.01). EXD can improve abnormal cardiac structure and function in OVX rats.

Dielectric properties of the small granular agricultural products in the microwave frequency band

Microwave drying and non-destructive sensing of agricultural products based on dielectric properties is an important field of modern agricultural research. The present study was carried out to improve the traditional coaxial transmission line technology and get some basic dielectric properties of agricultural products from Yunnan province of China during year 2018-19. The effective dielectric properties of vegetable seeds, coarse cereals, and grass seeds form china are measured by a non-calibrated coaxial transmission reflection method at 2~6 GHz in this work. The dielectric properties of the small granular agricultural products are obtained by relevant theoretical formulas, and variations in the dielectric properties of granular agricultural products as a function of the microwave frequency and moisture content were analysed. The results show that the dielectric properties of small granular agricultural products at room temperature are related to the microwave frequency and moisture content with a certain degree of regularity. At 2.45 GHz and for a moisture content between 2%~25%, the dielectric constants and dielectric loss factors for different kinds of small granular agricultural products ranged from 3.5~9 and 0.1~2, respectively. The mathematical relationships between the dielectric properties and moisture contents of granular agricultural products were obtained by fitting the experimental data to the microwave frequency (2.45 GHz). This work provides a reference method for measurement of dielectric properties of granular agricultural products, and the theoretical basis for the microwave assisted processing of agricultural products.

Multi-scale quantitative study on dielectric properties of C–S–H synthesized by different molar ratio of Ca/Si

The main hydration product of cement is C–S–H. C–S–H has a great influence on the electromagnetic properties, but there are few studies on the independent study of the electromagnetic properties of C–S–H. Therefore, nanocrystalline C–S–H was synthesized by CaO and nano-SiO2, multi-scale analysis method was adopted, and the electromagnetic properties of its hydration products were analyzed from the mechanism. C–S–H powders with Ca to Si molar ratio (C/S) of 0.8, 1.2, 1.6, 2.0 and 2.5 were synthesized and tested by the coaxial method. Four types of materials were defined in this paper: HPB (composed of nanocrystalline C–S–H, Ca(OH)2, CaCO3 and pore phase); CSH (composed of nanocrystalline C–S–H and pore phase with diameter less than 5 nm); P-CSH (composed of pore phase and CSH phase); C-CSH (composed of Ca(OH)2, CaCO3 and CSH phase). The complex permittivity and complex permeability of HPB with different C/S at 2–18 GHz were tested. The influence of molecular structure, interlayer physically bound water, phase types and content of HPB on the electromagnetic properties were investigated by XRD, MIP, N2 adsorption, TGA and 29Si NMR spectroscopy. The results showed that with the increase of C/S, the permittivity of CSH, P-CSH, C-CSH and HPB were decreased. Both Ca(OH)2 phase and pore phase can reduce the permittivity and loss tangent of HPB. It was worth noting that the reduction degree of pores phase on the permittivity of the HPB were about 4 times than that of Ca(OH)2 phase (or CaCO3 phase). Meanwhile, the results confirmed that the carbonization of Ca(OH)2 phases had no effect on the electromagnetic properties of HPB.

Miniaturized wideband implantable slotted loop antenna for biotelemetry applications

Abstract Small size of the implantable antenna is the major concern in Implantable Medical Devices. A compact implantable wideband radiator working at the ISM band is proposed for biotelemetry applications. The overall dimension of the proposed radiator is 10 mm ⁎ 15 mm ⁎ 0.8 mm and the thickness includes substrate and superstrate thickness. The Coaxial feeding method is employed here. The inner and outer diameter of the coaxial feed is 1 and 1.5 mm respectively. The design process starts with a creation of rectangular patch of size 10 mm ⁎ 15 mm and the coaxial feed is located at (2.5, 7). Then slot like loops are introduced on a rectangular patch. This compact size is achieved by introducing small loops on a rectangular patch along with triangular cuts at the bottom right and top-left of the patch. The antenna is simulated with a tissue model (Skin, Fat, Muscle, Bone) and measured with a Body Equivalent Fluid (phantom). The −10 dB bandwidth is obtained over 1340 MHz (1.66–3 GHz) and the fractional bandwidth of 54.7% at the ISM band. The simulated gain and radiation efficiency of the radiator are −13.5 dBi and 3.15% respectively. The measured return loss of the proposed antenna is −30.53 dB and the SAR value averaged over 1 g tissue is 302.6 W/kg with 1 W input power. When compared to the previous works mentioned in the literature the proposed antenna displays wider bandwidth, high gain, low SAR and high radiation efficiency.

Multifunctional elastic rGO hybrid aerogels for microwave absorption, infrared stealth and heat insulation

The application of advanced radar and infrared detection technology promotes the development of microwave-infrared compatible stealth technology, but also poses great challenges. Especially for the new generation of stealth fighters, how to facilely prepare a lightweight stealth material in both microwave and infrared is urgent. Herein, hierarchically porous reduced graphene oxide (rGO)/graphene oxide nanoribbon (GONR) aerogels (GG) with excellent stealth properties were prepared through green reduction and pyrolysis of the gel formed by GO and GONR. Remarkably, the aerogel (0.008 g/cm3) shows strongest yet broadest electromagnetic absorption when the percentage of GO and GONR is equal (GG33). Its effective absorption bandwidth (EAB) achieves 8.45 GHz and RL is up to −63.52 dB measured by coaxial method. In addition, the plane of GG33 exhibits a broad EAB of 8.52 GHz verified by the arch method. These are mainly attributed to the optimal impedance matching characteristics and increased polarization centers. Moreover, the porous structure formed by the rGO adsorbed with GONR ensures its eminent thermal insulation (less than 0.06 Wm/K), which is the key to infrared stealth. Interestingly, GG aerogels display great elasticity with reversible compressibility, fatigue resistance (100 % recovery after 1000th cycles under 30 % strain), and compression resistance sensitivity. In short, these excellent properties make ultra-lightweight multifunctional aerogels promising for various applications such as microwave-infrared compatible stealth aircrafts and portable electronic devices.