Special Environment Research Articles

Study on the structural and properties of composite films prepared by blending EUL and NBRL

In order to address issues such as poor dimensional stability caused by low modulus and tensile stress of nitrile butadiene rubber latex (NBRL) films, as well as poor wearing comfortability due to its good adhesion to the human skin, and the inability to meet the requirements of medical special occasions due to low tensile and tear strength. A new strategy is proposed to develop the Eucommia ulmoides latex (EUL) by using the emulsion solvent evaporation technique. EUL was then blended into the NBRL, successfully preparing the NBR/EUG composite latex film. As the Eucommia ulmoides gum (EUG) content increased from 0 to 40 %, the crystallinity of the NBR/EUG composite latex film gradually increased from 0 to 10 % or so. The tensile strength increases from 5.17 MPa to 15.94 MPa, the tear strength increases from 22.17 kN/m to 37.79 kN/m, the modulus increases from 6.40 MPa to 24.80 MPa. The very important point is that the elongation at break keep stable with the increase of EUG. On the contrary, the elongation at break will decrease with addition of conventional fillers into the latex, such as silica. These enhance mechanical properties and keep the dimensional stability of the film. Therefore, it can be utilized for the development of latex film products with high modulus and big deformation, such as sky balloon and foam mattress. Additionally, the crystalline nature of EUG effectively reduces the adhesion force on the surface of the composite latex film, thus improving its compatibility with human skins. This meets the requirements of special environments, such as medical gloves. At last, as a kind of biobased latex, it can increase the content of renewable resources and reduce the carbon emission of NBRL.

Designing the major active site of Cu atom for OER via a composite electrocatalyst of Agx@HEO: Experiment and theory

Copper element with low chemical activity is hard to be used as the major active site for oxygen evolution reaction (OER). To improve its OER performance, a specialized structural and chemical environments need be designed. In this work, the composite electrocatalyst of Agn@HEO were synthesized by a simple co-precipitation plus annealing methods. With the aid of the elemental Ag0 atom, part of Cu ions in high entropy oxide (HEO) phases were gradually transferred to the elemental Cu0 atoms and mixed with Ag0 atom for CuAg alloy. This transition evidently altered the chemical environments of Cu element. Thanks to the largest molar percentage of Cu0 atom, the designed Ag1@HEO specimen exhibited the fairly low experimental OER overpotential of 249 (308) mV at the current density of 10 (100) mA cm−2 with the small Tafel slope of 55.2 mV dec-1 and stable electrocatalytic activity. Based on the density functional theory simulation, the theoretical OER overpotential of Cu active site could be adjusted along with the ridges of “volcanic” in both atomic and ionic environments, and achieved the smallest value of 213 mV as the d band center of Cu0 atom had a suitable value near the “volcanic” peak. This design strategy would be adopted to provide an effective enhancement scheme for OER on Cu active site.

Special Experimental Environment for Generation IV Reactors With Graphite Reflector

Abstract Nowadays, there is an increasing demand for new small modular reactors (SMR) reactors with a wide range of applications, often classified as a new Generation-IV reactors. Unfortunately, there is no commercially operating nuclear reactor meeting the characteristics of Generation-IV reactors in its technical design and features. However, Generation-IV nuclear reactors are intensively developed worldwide, including the Czech Republic. To support research activities linked with the development of these reactors, an appropriate experimental environment and resources simulating conditions expected in Generation-IV reactors with graphite are needed This work builds on previous research and presents a special arrangement of the LR-0 reactor core with a double-row graphite reflector, on which the influence of graphite on the neutron field shaping and power distribution was experimentally and computationally verified. The main reason for this article is to investigate the effect of the graphite reflector, which will serve as a support for the development of neutron instrumentation for Generation-IV reactors and other support for Generation-IV research activities. The results confirm the conclusions of previous research and also provide a better knowledge of the double-row graphite reflector neutron field. The presented and tested LR-0 core arrangement is included in a set of experiments supporting the research of reactor cores with graphite reflectors.

Simple ePDF: A Pair Distribution Function Method Based on Electron Diffraction Patterns to Reveal the Local Structure of Amorphous and Nanocrystalline Materials.

Amorphous, glassy or disordered materials play important roles in developing structural materials from metals or ceramics, devices from semiconductors or medicines from organic compounds. Their local structure is frequently similar to crystalline ones. A computer program is presented here that runs under the Windows operating system on a PC to extract pair distribution function (PDF) from electron diffraction in a transmission electron microscope (TEM). A polynomial correction reduces small systematic deviations from the expected average Q-dependence of scattering. Neighbor distance and coordination number measurements are supplemented by either measurement or enforcement of number density. Quantification of similarity is supported by calculation of Pearson's correlation coefficient and fingerprinting. A rough estimate of fractions in a mixture is computed by multiple least-square fitting using the PDFs from components of the mixture. PDF is also simulated from crystalline structural models (in addition to measured ones) to be used in libraries for fingerprinting or fraction estimation. Crystalline structure models for simulations are obtained from CIF files or str files of ProcessDiffraction. Data from inorganic samples exemplify usage. In contrast to previous free ePDF programs, our stand-alone program does not need a special software environment, which is a novelty. The program is available from the author upon request.

Health risk assessment of heavy metals in soils and crops in a mining area (Au-Ag-Cu-trona-oil et al.) of the Nanyang Basin, Henan Province, China

Heavy metal distribution in mining areas has always been a hot research topic due to the special environment of these areas. This study aims to explore the impact of heavy metal pollution on soils and crops in the study area, ensure the safety of local crops and the health of local residents, and provide a basis for the subsequent environmental restoration and the prevention and control of environmental pollution. Based on the analysis of the heavy metal concentrations in local soils and crops, the study investigated the spatial distribution, pollution degrees, and potential ecological risks of heavy metals in the farmland of a mining area in the southeastern Nanyang Basin, Henan province, China explored the sources of heavy metals and assessed the health risks caused by crop intake. The results of this study are as follows. The root soils of crops in the study area suffered heavy metal pollution to varying degrees. The degree of heavy metal pollution in maize fields is higher than that in wheat fields, and both types of fields suffer the most severe Cd pollution. Moreover, the root soils of different crops suffer compound pollution. The root soils in the maize fields suffer severe compound pollution at some sampling positions, whose distribution is similar to that of the mining area. Cd poses the highest potential ecological risks among all heavy metals, and the study area mainly suffers low and moderate comprehensive potential ecological risks. The principal component analysis (PCA) shows that the distribution of Zn, Cd, Pb, and As in soils of the study area is mainly affected by anthropogenic factors such as local mining activities; the distribution of Cr and Ni is primarily controlled by the local geological background; the distribution of Hg is mainly affected by local vehicle exhaust emissions, and the distribution of Cu is influenced by both human activities and the geological background. Different cereal crops in the study area are polluted with heavy metals dominated by Cd and Ni to varying degrees, especially wheat. As indicated by the health risk assessment results, the intake of maize in the study area does not pose significant human health risks; however, Cu has high risks to human health, and the compound heavy metal pollution caused by the intake of wheat in the study area poses risks to the health of both adults and children. Overall, the soils and crops in the study area suffer a high degree of heavy metal pollution, for which mining activities may be the main reason.©2023 China Geology Editorial Office.

The disparity in hesitancy toward COVID-19 vaccination between older individuals in nursing homes and those in the community in Taizhou, China

PurposeOlder individuals are priority coronavirus disease 2019 (COVID-19) vaccine recipients. Our aim was to investigate the prevalence of and factors influencing vaccine hesitancy in older individuals living in nursing homes and communities.MethodsA self-administered COVID-19 vaccine hesitancy survey was conducted from September 2021 to December 2021 among people aged ≥ 60 years in eight nursing homes (382 participants) and the community (112 participants) in Taizhou, China. The response rate was 72.1% (382/530) for older adults in nursing homes and 68.7% (112/163) for older adults in the community.ResultsWe found that 58.1% of the older individuals in nursing homes and 36.6% of those in the community were hesitant to receive the COVID-19 vaccine and that there was a statistically significant difference (P < 0.001). Multiple logistic regression results indicated that the main factors influencing hesitation among the older individuals in nursing homes were being male (Odds Ratio (OR) = 1.67, 95% Confidence Interval (CI): 1.01–2.76); their cognitive level, including having a high perceived risk of COVID-19 infection (OR = 3.06, 95% CI: 1.73–5.43) or the perception of low vaccine safety (OR = 3.08, 95% CI: 1.545- 6.145); anxiety (OR = 3.43, 95% CI: 1.96–5.99); and no previous influenza vaccination (OR = 1.82, 95% CI: 1.13–2.93); whereas those for older individuals in the community were comorbid chronic diseases (OR = 3.13, 95% CI: 1.11- 8.78) and community workers not recommending the vaccine (OR = 8.223, 95% CI: 1.77–38.27).ConclusionThe proportion of older individuals in nursing homes who were hesitant to receive the COVID-19 vaccine was significantly higher than for older individuals in the community. Targeted measures should be implemented to reduce vaccine hesitancy and improve vaccination rates in response to the special environment of nursing homes and the characteristics of this population.

Ultrabroadband High Photoresponsivity at Room Temperature Based on Quasi-1D Pseudogap System (TaSe4 )2 I.

Narrow bandgap materials have garnered significant attention within the field of broadband photodetection. However, the performance is impeded by diminished absorption near the bandgap, resulting in a rapid decline in photoresponsivity within the mid-wave infrared (MWIR) and long-wave infrared (LWIR) regions. Furthermore, they mostly worked in cryogenic temperature. Here, without the assistance of any complex structure and special environment, it is realized high responsivity covering ultra-broadband wavelength range (Ultraviolet (UV) to LWIR) in a single quasi-1D pseudogap (PG) system (TaSe4 )2 I nanoribbon, especially high responsivity (From 23.9 to 8.31AW-1 ) within MWIR and LWIR region at room temperature (RT). Through direct probing the carrier relaxation process with broadband time-resolved transient absorption spectrum measurement, the underlying mechanism of majorly photoconductive effect is revealed, which causes an increased spectral weight extended to PG region. This work paves the way for realizing high-performance uncooled MWIR and LWIR detection by using quasi-1D PG materials.

Intervention effects of fructooligosaccharide and astragalus polysaccharide, as typical antibiotic alternatives, on antibiotic resistance genes in feces of layer breeding: advantages and defects

Although antibiotic alternatives are widely used in livestock and poultry breeding industry after in-feed antibiotics ban, their intervention effects on antibiotic resistance genes (ARGs) in these food animals’ feces remain poorly understood. Here effects of fructooligosaccharide (FOS) and astragalus polysaccharide (APS), as typical antibiotic alternatives in China, on ARGs in layer feces were estimated by performing metagenomic sequencings and fluorescence quantitative PCR. Fructooligosaccharide significantly reduced sum abundance of ARGs and mobile genetic elements (MGEs) by increasing Lactobacillus clones and reducing Escherichia clones which had relatively higher abundances of ARG subtypes and MGE subtypes in layer feces. However, at least parts of core ARGs and MGEs categories were not reduced by FOS, such as aminoglycosides- and tetracyclines-resistant genes, Tn916, Integrase, and so on. MGEs and microbiome, especially Escherichia genus and Lactobacillus genus, were the key factors affecting ARGs’ sum abundance. MGEs had a higher correlation coefficient with ARGs’ sum abundance than Escherichia genus and Lactobacillus genus. These findings firstly reveal the defects of antibiotic alternatives in controlling bacterial resistance in livestock and poultry breeding after in-feed antibiotics ban, and more strategies are needed to control pollutions and risks of core ARGs and MGEs in food animals’ feces under a special environment.

Two-phase lubrication characteristics of journal bearing in refrigerant-oil system under high-pressure environment considering gaseous cavitation

The journal-bearing system is crucial for the reliability of refrigerant compressors that operate under high-ambient-pressure environments. The pressure changes rapidly, which hereby results in the variation in solubility of refrigerant in oil, and causes gaseous cavitation of the refrigerant-oil mixture in the bearing. However, the cavitation mechanism under high-pressure environments is not well understood, and its impact on lubrication characteristics has been rarely discussed. In this paper, a numerical model is developed to simultaneously solve the gaseous cavitation and two-phase lubrication problems. The first systematic comparison of lubrication characteristics for constant-eccentricity journal bearings, in such a special environment, between the classical Reynolds boundary and gaseous cavitation boundary is presented. Results indicate the load-carrying capacity is reduced by about 3% at a lower eccentricity of 0.3, but is greatly enhanced by about 21% at a higher eccentricity of 0.9 due to the gaseous cavitation. Meanwhile, the ‘reverse’ flow rate is found to reach -0.057 at the end side of the bearing owing to sub-ambient pressure up to -1 MPa at the eccentricity of 0.8. The cavitation-induced sub-ambient pressure should be addressed for the design of the bearing operating in such pressurized refrigerant environments as ambient gas might be sucked into the bearing.

NaOH protective layer for a stable sodium metal anode in liquid electrolytes

Sodium is known as a soft metal that can easily change its particle morphology. It can form outstretched and rolled fibers with plastic or brittle behavior, and cubes. In Na-batteries, metallic Na anodes demonstrate a high reactivity towards the majority of electrolyte solutions, volume change and a random deposition process from the electrolyte, accompanied by dendrite formation.In order to smooth the electrochemical Na deposition, we propose NaOH as a simple artificial protective layer for sodium, formed by its exposure to ambient conditions for a certain period of time. The formed NaOH layer on top of the metallic sodium suppresses the volume change and dendrite growth on the sodium surface. Additionally, the protected sodium does not change its morphology after a prolonged contact with carbonate-based electrolytes. In symmetric Na-batteries, the NaOH layer increases the lifetime of the electrochemical cell by eight times in comparison to non-protected Na.In the full-cell with a layered sodium oxide cathode, the NaOH-protected sodium anode also leads to a high cycling stability, providing 81 % of the initial cell capacity after 500 cycles with a 1C current rate. In contrast, batteries with a non-protected Na-anode reach only 20 % of their initial capacity under the same conditions. Therefore, the main benefits of the NaOH artificial layer are the chemical compatibility with the carbonate-based electrolytes, the protection of Na metal against reaction with the electrolyte solution, the rapid Na-ion diffusion through the layer and the formation of a mechanical barrier, mitigating Na-dendrite growth.This work presents an easily scalable method to protect sodium without any additional chemicals or a special environment for this reaction.

Различие идей Конфуция и Платона

West and East are two branches of human culture, two civilizations, two ways of life. West and East were perceived as "opposite" sides of the world, and this statement applied not only to geography, but also to mentality and worldview. The article discusses the features of Eastern and Western philosophy through the prism of the great ideas of Confucius and Plato, thinkers who had a huge impact on the further development of both cultures and value systems. The comparison in the article is based on metaphysical concepts and the value orientations that follow from them, the attitude to knowledge and to a person, as well as the way of thinking. In the context of metaphysics, the category of philanthropy, which is significant for Confucianism – ren, is considered in comparison with the theory of Plato's ideas, the differences are demonstrated, which later gave different vectors for the development of European and Chinese thought. These differences gave rise to dissimilarity of value concepts, and, as a result, a different understanding of knowledge. As a separate position for comparison, the concept of "aspiration" is taken as the desire for individuality in Western philosophy as opposed to the desire for harmony in Chinese. The reasons leading to such a difference are rooted not only in the personality of the thinkers, but also in a special cultural background and geographical environment. The analytical Western mind of the individual is opposed to the Chinese public consciousness, where the priority is harmony in relations between people at different levels. The author shows some basic philosophical attitudes important for both civilizations and the difference in the further directions of development of the two cultures.

I saw myself as an important piece of a jigsaw puzzle: Parents experiences of their child's anaesthesia induction.

Anxiety in children, as well as their parents, is common in high-tech environments such as an operating room. This study aimed to describe parents' experiences of being present when their child is being anaesthetised. Twenty-four parents were interviewed and data were analysed using a descriptive phenomenological approach. Findings show that being present at a child's anaesthesia and surgery is a long, continuous process that begins at home. Parents struggle to face strong emotions in a special and frightening environment, focussing on their child's well-being while trying to remain control in this situation. Security and trust are vital, but it's challenging to relinquish control in an uncertain situation. Professional caregivers can promote trust and participation, but an awareness that something can go wrong affects parents on a deep level. In conclusion, parental presence at induction of anaesthesia is important but can be overwhelming and anxiety-inducing for some parents. Parents should be seen as a resource rather than a disturbance. Overall, the healthcare system should prioritise parents' involvement and seek to create an environment where they feel supported and included.

Flexible and efficient MXene/PANI/aramid fabrics with high interface durability for wearable electromagnetic wave shielding

The electromagnetic pollution of electronic equipment has a negative impact on the health of aircrews working in special environments. Yet wearable electromagnetic interference (EMI) shielding materials capable of versatility still a challenge. Herein, an effective strategy is developed to construct MXene/PANI/aramid fabric by growing vertically aligned polyaniline (PANI) nanowire arrays on the aramid fabric through impregnating with highly conductive MXene nanosheets to avoid the new accumulation/aggregation of MXene followed by simple polyetherimide (PEI) dipping packaging. In-situ polymerization of PANI solved the problem of weak interaction between inert aramid fiber and MXene to some extent, while PEI packaging solves the existing problem of easy-to-fall MXene nanosheets. The final prepared single-layer composite fabric has suitable highest EMI shielding efficiency value of 31.87 dB, good washing resistance and excellent bending stability (only 4% of the conductivity decreases after 1000 bends). This study provides a simple and easy large-scale method to fabricate multifunctional wearable fabrics to meet the practical application in EMI shielding area.

Improved STMask R-CNN-based defect detection model for automatic visual inspection of an optics lens.

A lens defect is a common quality issue that has seriously harmed the scattering characteristics and performance of optical elements, reducing the quality consistency of the finished products. Furthermore, the energy hotspots coming from the high-energy laser through diffraction of optical component defects are amplified step by step in multi-level laser conduction, causing serious damage to the optical system. Traditional manual detection mainly relies on experienced workers under a special light source environment with high labor intensity, low efficiency, and accuracy. The common machine vision techniques are incapable of detecting low contrast and complex morphological defects. To address these challenges, a deep learning-based method, named STMask R-CNN, is proposed to detect defects on the surface and inside of a lens in complex environments. A Swin Transformer, which focuses on improving the modeling and representation capability of the features in order to improve the detection performance, is incorporated into the Mask R-CNN in this case. A challenge dataset containing more than 3800 images (18000 defect sample targets) with five different types of optical lens defects was created to verify the proposed approach. According to our experiments, the presented STMask R-CNN reached a precision value of 98.2%, recall value of 97.7%, F1 score of 97.9%, mAP@0.5 value of 98.1%, and FPS value of 24 f/s, which outperformed the SSD, Faster R-CNN, and YOLOv5. The experimental results demonstrated that the proposed STMask R-CNN outperformed other popular methods for multiscale targets, low contrast target detection and nesting, stacking, and intersecting defects sample detection, exhibiting good generalizability and robustness, as well as detection speed to meet mechanical equipment production efficiency requirements. In general, this research offers a favorable deep learning-based method for real-time automatic detection of optical lens defects.

The Impact of Japan's Yield Curve Control (YCC) on Inflation of Japan

After the bursting of the bubble crisis in Japan, the government adopted a series of quantitative easing policies to improve the weak economic environment and promote economic growth. in September 2016, the Japanese government began to implement the yield curve control policy to improve the economic environment by controlling the yield on government bonds. the YCC policy, in theory, could promote economic growth and achieve the inflation target in Japan, but the actual effect was lacking. This paper analyses the main reason for the unsatisfactory implementation of the yield curve policy in Japan is the special social environment in Japan. Although the YCC policy has led to an increase in the money circulating in the market, after firms have received the money, they do not expand their investment production at home due to Japan's own lack of domestic demand, but choose to invest the money in stocks, government bonds or other overseas markets for profit. After the money flowed around the market, it went back to the capital market without making the liquidity in the market increase. This paper uses Granger causality tests to analyze the causal relationship between the ageing population, personal savings, average wage and the inflation rate in Japan, and finds through the tests that the inflation rate conversely affects the above factors. The interaction between these two factors has trapped the Japanese economy in a cycle of economic malaise, which is difficult to break with YCC policy.

Optimal design of 3D macro-structures for multi-layer foams achieving ultra-broadband microwave absorption properties and high retention after immersion in brine

A novel flexible microwave absorbing material (C–MCM–FAS) with a cone-shaped sandwich structure is proposed, which is constructed by carbonyl iron-carbon nanotubes/PDMS foams and SiC–morchella biochar/PDMS film. To enhance broadband absorption properties, a three-level scale design has been creatively introduced into C–MCM–FAS, encompassing millimeter, micron and nano scales. The rational structural parameters of C–MCM–FAS are determined by CST simulation, leading to the preparation of C–MCM–FAS with an impressive minimum reflection loss (RLmin) of −43.26 dB and an effective absorption band (EB) covering the entire C2, X, and Ku bands at 11.79 GHz. Encouragingly, the measured results are basically consistent with the simulation results (an RLmin of −35.78 dB and an EB of 14.68 GHz), which verifies the accuracy of the theoretical simulation and the feasibility of the method. It holds great significance that the investigation of the adsorption retention rate of C–MCM–FAS after immersing it in 3.5 wt% NaCl solution for 21 days. The measured RLmin reaches −48.41 dB with a retention rate of 111.9 %, and the EB reaches 8.56 GHz with a retention rate of 72.6 %. This work presents a groundbreaking concept for designing structural absorbers, expecting the C–MCM–FAS to become a strong contender for application in special environments like microwave detection in the nautical field.

Small axe: chipping away at special collections barriers to inclusivity

PurposeThe purpose of this article is to share this study’s efforts to foster belonging in special collections public service spaces, as Black and Latina practitioners of color, while navigating known systemic professional barriers to inclusivity in the library information profession.Design/methodology/approachIn this conceptual essay, frameworks from Black and Chicana feminist theories are applied which resonate deeply with this study’s practices but are not often encountered in library spaces, namely intersectional nepantla, which is used to situate the positionality within special collections.FindingsFostering belonging in special collections environments is an ongoing effort, but this study offers reflections in solidarity with all who seek to increase inclusivity and equity in their spaces. It is believed that the cumulative impact of many small actions implemented from the ground up can potentially be as significant as top-down, administrative charges.Originality/valueThis article's originality stems from both its authors and the methodology. As BIPOC practitioners, to the authors emphasize the authentic, day-to-day interactions that are essential to developing inclusivity and equity in special collections and archival spaces. Special collections reference workers have limited time off desk to collaborate and conduct research.

Characteristics of spatial mobility layout

Spatial fluidity is an important form of spatial organization in architectural design, because it can affect the behavior of building users in the building. Therefore, spatial fluidity is also the most basic and core content in space design. Therefore, how to realize the communication and interaction between people and places through the fluidity of space has become an urgent problem to be solved in the construction of modern cities. This paper introduces the concepts of "mobility" and "layout" in architecture through the research method of theoretical analysis, so as to help explain the characteristics existing between them, and discuss the characteristics of spatial mobility layout. Excellent spatial fluidity design is extremely important for some special environments such as enterprises and libraries. It can provide a clear sense of direction and space, reduce unnecessary flow space, and thus improve work efficiency and use requirements.

Quality-based irregular area coverage algorithm in aerial sensor networks

Wireless communication technology is increasingly gaining popularity, with aerial wireless sensor networks being highly regarded for their high mobility, ability to handle special environments, and wide coverage. To enhance the performance of aerial wireless sensor networks, the study of area coverage algorithms is crucial. However, most existing coverage algorithms primarily focus on the coverage area without considering coverage quality. To address this limitation, this paper proposes a coverage algorithm based on coverage quality for regional coverage by unmanned aerial vehicles (UAVs). The algorithm incorporates the importance and priority of the coverage area, utilizes an adaptive spatial distribution function for weight distribution, and employs horizontal and vertical control strategies to strike a balance between maximum coverage and optimization of coverage quality. Simulation experiments are conducted to validate the effectiveness of the proposed algorithm. This research contributes to the field by emphasizing the significance and impact of considering coverage quality in aerial wireless sensor networks, thereby enhancing their overall performance.

Experimental investigation on dynamic shear modulus of undisturbed marine soils in the east coast of China

The dynamic shear modulus G is one of the vital parameters for the dynamic properties of marine soils and is crucial for marine geotechnical engineering design. In order to investigate the G characteristics of various marine soils, a series of resonant column tests were performed on undisturbed marine soils with various depths taken from Bohai Bay, Yangtze River estuary, and Jintang Strait, respectively. In addition, the maximum dynamic shear modulus Gmax and strain-compatible G of the tested marine soils were compared with the marine and terrestrial soils from the published literature. A remarkable finding is that, compared with terrestrial soils, the marine soils in different sea area present the stronger nonlinear behavior with lower shear modulus due to the special depositional environment. With the increasing of H, G in each strain range increase, and the dynamic characteristics of the marine soils gradually transition from nonlinear to linear, the Gmax and reference shear strain γ0 value of marine soils in different sea areas increases linearly with the increasing H, but the Gmax and γ0 growth rate varied with the sea environment and soil type. Based on the quantitative prediction equation of the Gmax and G attenuation relationship (G/Gmax ∼ γ) of various marine soils, a new prediction equation can be also established to predict G value in different depth and strain levels of various marine soils. The proposed equation are validated by independent experimental data of marine and terrestrial soils from the literature. In this regard, the proposed procedure provides a significant advantage in the evaluation of dynamic properties of marine soils in practice.