调控铝在ITH沸石骨架中的位置以用于催化甲醇制烯烃

随着低碳烯烃需求量的增加,甲醇制烯烃(MTO)成为由非石油资源制取低碳烯烃的关键技术,其中沸石由于具有可调节的酸度、有序的微孔结构和较好的择型性能而被广泛用作MTO反应催化剂.ITQ-13沸石(ITH拓扑结构)由于其独特的九元环结构在MTO反应中表现出较好的丙烯选择性和反应寿命,引起了广泛关注.研究表明,分子筛的酸中心分布与MTO反应性能密切相关,因此,研究ITQ-13沸石中铝分布与MTO反应性能的关系,对进一步提升其MTO催化性能具有重要意义.本文分别以与ITH具有共同基本结构单元(双四元环,D4Rs)的LTA沸石(LTA-ITH)和薄水铝石(C-ITH)为铝源,合成了两类铝硅酸盐ITH沸石.X射线衍射、扫描电子显微镜以及氮气吸脱附表征结果表明,这两类分子筛具有相似的片状形貌和微孔性质.氨气程序升温脱附结果表明,具有相近硅铝比的两类ITH沸石具有相近的酸量.进一步采用27Al魔角旋转核磁共振(MAS NMR)、密度泛函理论计算和1-己烯裂解反应对两类ITH分子筛的铝分布进行研究.结果表明,两类分子筛具有不同的铝分布,LTA-ITH中有更多的铝进入ITH的正弦孔道与直孔道,而C-ITH中有更多的铝分布在交叉孔道.当前,研究者普遍认为MTO反应过程遵循双循环烃池机理,ITH交叉孔道由于具有较大的空间,相比于正弦孔道和直孔道,更有利于芳烃循环中间体的产生,从而有利于形成芳烃循环产物(乙烯),而正弦孔道和直孔道却更有利于烯烃循环过程,导致产生更多的丙烯.对两类ITH进行了MTO催化性能测试,结果表明,LTA-ITH比C-ITH表现出更高的丙烯选择性,并且表现出更高的丙烯与乙烯的比率,表明其烯烃循环过程得到加强,这与^(27)Al MAS NMR以及1-己烯裂解反应得到的结论一致,进一步证明ITH分子筛的铝分布得到有效调控.综上,本文阐明了ITH沸石中铝分布与其反应性能的关系,为调整沸石骨架中的Al位点提供一种新策略,为未来制备高效的MTO沸石基催化剂提供参考.

Microgels for Cell Delivery in Tissue Engineering and Regenerative Medicine

Microgels prepared from natural or synthetic hydrogel materials have aroused extensive attention as multifunctional cells or drug carriers,that are promising for tissue engineering and regenerative medicine.Microgels can also be aggregated into microporous scaffolds,promoting cell infiltration and proliferation for tissue repair.This review gives an overview of recent developments in the fabrication techniques and applications of microgels.A series of conventional and novel strategies including emulsification,microfluidic,lithography,electrospray,centrifugation,gas-shearing,three-dimensional bioprinting,etc.are discussed in depth.The characteristics and applications of microgels and microgel-based scaffolds for cell culture and delivery are elaborated with an emphasis on the advantages of these carriers in cell therapy.Additionally,we expound on the ongoing and foreseeable applications and current limitations of microgels and their aggregate in the field of biomedical engineering.Through stimulating innovative ideas,the present review paves new avenues for expanding the application of microgels in cell delivery techniques.

Data complexity-based batch sanitization method against poison in distributed learning

The security of Federated Learning(FL)/Distributed Machine Learning(DML)is gravely threatened by data poisoning attacks,which destroy the usability of the model by contaminating training samples,so such attacks are called causative availability indiscriminate attacks.Facing the problem that existing data sanitization methods are hard to apply to real-time applications due to their tedious process and heavy computations,we propose a new supervised batch detection method for poison,which can fleetly sanitize the training dataset before the local model training.We design a training dataset generation method that helps to enhance accuracy and uses data complexity features to train a detection model,which will be used in an efficient batch hierarchical detection process.Our model stockpiles knowledge about poison,which can be expanded by retraining to adapt to new attacks.Being neither attack-specific nor scenario-specific,our method is applicable to FL/DML or other online or offline scenarios.

Superhydrophobic melamine sponge prepared by radiation-induced grafting technology for efficient oil-water separation

This paper presents a superhydrophobic melamine(ME)sponge(ME-g-PLMA)prepared via high-energy radiation-induced in situ covalent grafting of long-alkyl-chain dodecyl methacrylate(LMA)onto an ME sponge for efficient oil–water separation.The obtained ME-g-PLMA sponge had an excellent pore structure with superhydrophobic(water contact angle of 154°)and superoleophilic properties.It can absorb various types of oils up to 66–168 times its mass.The ME-g-PLMA sponge can continuously separate oil slicks in water by connecting a pump or separating oil underwater with a gravity-driven device.In addition,it maintained its highly hydrophobic properties even after long-term immersion in different corrosive solutions and repeated oil adsorption.The modified ME-g-PLMA sponge exhibited excellent separation properties and potential for oil spill cleanup.

Exploring Corporate Tax Compliance in the Era of Digital Tax Collection and Administration:Insights from the“Golden Tax Phase Four”Project

This article primarily examines the current state of tax collection and management,alongside other associated issues.It integrates insights from China’s“14th Five-Year Plan”and anticipates the imminent implementation of the“Golden Tax Phase Four.”With this backdrop,the article offers recommendations for advancing the reform of the tax collection and management system,fostering the development of intelligent taxation,and accelerating the modernization of tax collection and management in China.

镓改性的铜基疏水催化剂用于CO_(2)选择性加氢制二甲醚的研究

CO_(2)选择性加氢制二甲醚(DME)是实现CO_(2)资源化利用的重要途径之一.然而,该过程面临着多方面的挑战.比如,水分子会限制CO_(2)的高效转化并诱导铜颗粒的团聚,导致催化活性与稳定性不足.此外,沸石分子筛甲醇脱水催化剂的酸性过强容易造成甲醇过度脱水生成低碳烃,导致催化选择性不足.因此,开发高效稳定的CO_(2)加氢制DME催化剂十分必要.本文通过共水解法制备了一系列镓改性的疏水二氧化硅负载铜基催化剂,并通过优化疏水基团含量以及铜与镓的比例来进一步提高催化性能.通过X射线衍射、氢气程序升温还原、X射线光电子能谱和CO吸附红外光谱等方法进行表征,结果表明,镓物种对铜纳米颗粒的电子结构进行了调控,提升了催化剂上Cuδ+物种的含量,从而抑制了逆水煤气转换反应,实现了CO选择性的降低.此外,水蒸气等温吸附、水蒸气程序升温脱附和水滴接触角测试等结果表明,引入疏水甲基基团可以调控催化剂表面的浸润性,提升水分子的扩散速率并抑制其二次吸附.在镓改性和甲基基团疏水修饰的协同作用下,Cu/Ga-SiO_(2)-20Me催化剂上CO_(2)转化率从5.5%提升至9.7%,DME选择性达到59.3%,而CO选择性则从40%降至11.3%.在100h的长周期测试中,表现出较好的催化稳定性.通过研究CO_(2)加氢催化剂(Cu/SiO_(2)-20Me)和甲醇脱水催化剂(Ga/SiO_(2)-20Me)的混合方式,探讨了疏水环境下铜和镓物种之间的协同作用.结果表明,镓改性和疏水基团的协同作用有助于串联反应的同步进行,避免了甲醇中间体的气相扩散和二次吸附.对于物理混合催化剂,由于两种活性金属存在一定的空间距离,导致铜基催化剂上生成的甲醇必须气相扩散并二次吸附于镓催化剂表面以进行后续甲醇脱水生成二甲醚反应.然而,在疏水甲基基团的作用下,抑制了极性甲醇分子的二次吸附,导致了二甲醚选择性的降低.尽管如此,对于Cu/Ga-SiO_(2)-20Me复合催化剂,铜与镓物种的毗邻性实现了CO_(2)加氢制甲醇和甲醇脱水制二甲醚串联反应能够同步进行,成功避免了甲醇中间体的气相扩散和二次吸附.此外,疏水甲基基团可以加速反应生成水的扩散,促进反应平衡正向进行,实现高效催化.综上,本文研究结果为催化系统的空间分布控制提供了有益的见解,并为设计适用于疏水催化过程的新型串联催化剂提供了参考.此外,该理念为催化剂体系的设计提供了新的思路.

Experimental study on the dispersion behavior of a microemulsion collector and its mechanism for enhancing low-rank coal flotation

As the poor dispersion of oily collectors and the inferior hydrophobicity of the mineral surface, the lowrank coal has an unsatisfactory flotation performance when using traditional collectors. In this paper, an ionic liquid microemulsion was used as a collector to enhance its floatability. Flotation test results demonstrated the microemulsion collector exhibited a superior collecting ability. A satisfactory separation performance of 78.66% combustible material recovery was obtained with the microemulsion collector consumption of 6 kg/t, which was equivalent to the flotation performance of diesel at a dosage of25 kg/t. The dispersion behavior of the microemulsion collector was investigated using the CryogenicTransmission Electron Microscopy. The interaction mechanism of the microemulsion collector on enhancing the low-rank coal flotation was elucidated through the Zeta potential and contact angle measurements, the Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy analysis.The microemulsion collector exhibited superior dispersibility, which was dispersed into positively charged oil droplets with an average size of 160.21 nm in the pulp. Furthermore, the nano-oil droplets could be more efficiently adsorbed on the low-rank coal surface through electrostatic attraction, resulting in the improvement of its hydrophobicity. Thus, the microemulsion collector shows great application potential in improving the flotation performance of low-rank coal.

Controllable design of Zn-Ni-P on g-C_3N_4 for efficient photocatalytic hydrogen production

Synthesizing a stable and efficient photocatalyst has been the most important research goal up to now. Owing to the dominant performance of g-C3N4 (graphitized carbonitride), an ordered assemble of a composite photocatalyst, Zn-Ni-P@g-C3N4, was successfully designed and controllably prepared for highly efficient photocatalytic H2 evolution. The electron transport routes were successfully adjusted and the H2 evolution was greatly improved. The maximum amount of H2 evolved reached about 531.2 μmol for 5 h over Zn-Ni-P@g-C3N4 photocatalyst with a molar ratio of Zn to Ni of 1:3 under illumination of 5 W LED white light (wavelength 420 nm). The H2 evolution rate was 54.7 times higher than that over pure g-C3N4. Moreover, no obvious reduction in the photocatalytic activity was observed even after 4 cycles of H2 production for 5 h. This synergistically increased effect was confirmed through the results of characterizations such as XRD, TEM, SEM, XPS, N2 adsorption, UV-vis DRS, transient photocurrent, FT-IR, transient fluorescence, and Mott-Schottky studies. These studies showed that the Zn-Ni-P nanoparticles modified on g-C3N4 provide more active sites and improve the efficiency of photogenerated charge separation. In addition, the possible mechanism of photocatalytic H2 production is proposed.

Growth of SnO_2 Nanoflowers on N-doped Carbon Nanofibers as Anode for Li-and Na-ion Batteries

It is urgent to solve the problems of the dramatic volume expansion and pulverization of SnO_2 anodes during cycling process in battery systems. To address this issue, we design a hybrid structure of N-doped carbon fibers@SnO_2 nanoflowers(NC@SnO_2) to overcome it in this work. The hybrid NC@SnO_2 is synthesized through the hydrothermal growth of SnO_2 nanoflowers on the surface of N-doped carbon fibers obtained by electrospinning. The NC is introduced not only to provide a support framework in guiding the growth of the SnO_2 nanoflowers and prevent the flower-like structures from agglomeration, but also serve as a conductive network to accelerate electronic transmission along one-dimensional structure effectively. When the hybrid NC@SnO_2 was served as anode, it exhibits a high discharge capacity of 750 Ah g^(-1) at 1 A g^(-1) after 100 cycles in Li-ion battery and 270 mAh g^(-1) at 100 mA g^(-1) for 100 cycles in Na-ion battery, respectively.

How we can improve patients’comfort after Milligan- Morgan open haemorrhoidectomy

AIM:To demonstrate the value of Diosmin(flavonidic fraction)in the management of post-haemorhoidectomic symptoms.METHODS:Eighty-six consecutive patients with grades ⅢandⅣacute mixed hemorrhoids admitted to the Anorectal Surgical Department of First Affiliated Hospital,Xinjiang Medical University from April 2009 to April 2010,were enrolled in this study.An observerblinded,randomized trial was conducted to compare post-haemorhoidectomic symptoms with use of Diosmin flavonidic fraction vs placebo.Eighty-six patients were randomly allocated to receive Diosmin flavonidic fraction 500 mg for 1 wk(n=43)or placebo(n=43).The Milligan-Morgan open haemorrhoidectomy was performed by a standardized diathermy excision method.Pain,bleeding,heaviness,pruritus,wound edema and mucosal discharge were observed after surgery.The postoperative symptoms and hospitalization time were recorded.RESULTS:The mean age of the Diosmin group and controls was 53.2 and 51.3 years,respectively.In Diosmin group,haemorrhoid piles were of the third degree in 33 patients and the fourth degree in 10;and in the control group,29 were of the third degree and 14 were of the fourth degree.There was no statistically significance in age,gender distribution,degree and number of excised haemorrhoid piles,and the mean duration of haemorrhoidal disease between the two groups.There was a statistically significant improvement in pain,heaviness,bleeding,pruritus from baseline to the 8th week after operation(P<0.05).Patients taking Diosmin had a shorter hospitalization stay after surgery(P< 0.05).There was also a significant improvement on the proctoscopic appearance(P<0.001).However,there was no statistical difference between the two groups in terms of wound mucosal discharge.Two patients experienced minor bleeding at the 8th week in Diosmin group,and underwent surgery.CONCLUSION:Diosmin is effective in alleviating postoperational symptoms of haemorrhoids.Therefore,it should be considered for the initial treatment after haemorrhoid surgery.However,further prospective randomized trials are needed to confirm the findings of this study.

Risk factors and predictive model of adrenocortical insuffi ciency in patients with traumatic brain injury

BACKGROUND:Neuroendocrine dysfunction after traumatic brain injury(TBI)has received increased attention due to its impact on the recovery of neural function.The purpose of this study is to investigate the incidence and risk factors of adrenocortical insuffi ciency(AI)after TBI to reveal independent predictors and build a prediction model of AI after TBI.METHODS:Enrolled patients were grouped into the AI and non-AI groups.Fourteen preset impact factors were recorded.Patients were regrouped according to each impact factor as a categorical variable.Univariate and multiple logistic regression analyses were performed to screen the related independent risk factors of AI after TBI and develop the predictive model.RESULTS:A total of 108 patients were recruited,of whom 34(31.5%)patients had AI.Nine factors(age,Glasgow Coma Scale[GCS]score on admission,mean arterial pressure[MAP],urinary volume,serum sodium level,cerebral hernia,frontal lobe contusion,diff use axonal injury[DAI],and skull base fracture)were probably related to AI after TBI.Three factors(urinary volume[X4],serum sodium level[X5],and DAI[X8])were independent variables,based on which a prediction model was developed(logit P=-3.552+2.583X4+2.235X5+2.269X8).CONCLUSIONS:The incidence of AI after TBI is high.Factors such as age,GCS score,MAP,urinary volume,serum sodium level,cerebral hernia,frontal lobe contusion,DAI,and skull base fracture are probably related to AI after TBI.Urinary volume,serum sodium level,and DAI are the independent predictors of AI after TBI.

Privacy Protection Based Access Control Scheme in Cloud-Based Services

With the rapid development of computer technology, cloud-based services have become a hot topic. They not only provide users with convenience, but also bring many security issues, such as data sharing and privacy issue. In this paper, we present an access control system with privilege separation based on privacy protection(PS-ACS). In the PS-ACS scheme, we divide users into private domain(PRD) and public domain(PUD) logically. In PRD, to achieve read access permission and write access permission, we adopt the Key-Aggregate Encryption(KAE) and the Improved Attribute-based Signature(IABS) respectively. In PUD, we construct a new multi-authority ciphertext policy attribute-based encryption(CP-ABE) scheme with efficient decryption to avoid the issues of single point of failure and complicated key distribution, and design an efficient attribute revocation method for it. The analysis and simulation result show that our scheme is feasible and superior to protect users' privacy in cloud-based services.

Construction of CuO-modified zeolitic imidazolate framework-9 for photocatalytic hydrogen evolution

An efficient CuO‐modified zeolitic imidazolate framework‐9(ZIF‐9)photocatalyst is successfully prepared at room temperature under mild conditions.It is observed that the ZIF‐9/CuO photocatalyst is effective for H2generation under visible light with sacrificial agent conditions.When the CuO is introduced,the photocatalytic properties of ZIF‐9are greatly improved and when the content of CuO is40%,the photocatalytic activity reaches a maximum of78.74μmol after5h.This results from the200–300nm cube structure of ZIF‐9being able to adsorb more dye molecules and the CuO,which connects with ZIF‐9,greatly improving the electronic transmission efficiency.Moreover,the interaction between the dye molecule Eosin Y(EY)and the catalyst is also studied by transient fluorescence spectroscopy.A series of characterizations,such as SEM,TEM,XPS,XRD,UV‐vis,FTIR,transient fluorescence and photocurrent,are conducted,and the results are in good agreement with the experimental result.In addition,the possible reaction mechanism over EY‐sensitized ZIF‐9/CuO under visible light irradiation is proposed.

Physicochemical and Morphological Variation of Bamboo Cell Wall During Hydrothermal Pretreatment

Pretreatment is important for achieving high-value utilization of biomass.This study is conducted to evaluate the destruction of the Moso bamboo cell wall via hydrothermal pretreatment at different temperatures and pH values.Compositional and morphological analyses and subsequent enzymatic hydrolysis of the solid fractions indicate that the destruction of the cell wall,instead of the degradation or removal of hemicellulose and lignin,or the configuration transition of the cellulose crystal structure,is the most critical aspect for improving bioconversion efficiency.Although only an 8%-10%weight loss is incurred and similar crystalline indexes are achieved after mild hydrothermal treatments,the recovery of glucose is doubled,whereas the recovery of xylose from pretreated samples is approximately 35%.

Study on electron stochastic motions in the magnetosonic wave field: Test particle simulations

Using the test particle simulation method, we investigate the stochastic motion of electrons with energy of 300 keV in a monochromatic magnetosonic(MS) wave field. This study is motivated by the violation of the quasi-linear theory assumption, when strong MS waves(amplitude up to ~1 nT) are present in the Earth's magnetosphere. First, electron motion can become stochastic when the wave amplitude exceeds a certain threshold. If an electron initially resonates with the MS wave via bounce resonance, as the bounce resonance order increases, the amplitude threshold of electron stochastic motion increases until it reaches the peak at about the 11 th order in our study, then the amplitude threshold slowly declines. Further, we find that the coexistence of bounce and Landau resonances between electrons and MS waves will significantly reduce the amplitude threshold. In some cases, the electron motion can become stochastic in the field of an MS wave with amplitudes below 1 nT. Regardless, if neither the bounce nor Landau resonance condition is satisfied initially, then the amplitude threshold of stochastic motion shows an increasing trend for lower frequencies and a decreasing trend for higher frequencies, even though the amplitude threshold is always very large(> 5 nT). Our study suggests that electron stochastic motion should also be considered when modeling electron dynamics regulated by intense MS waves in the Earth's magnetosphere.

The Effect of Helicobacter pylori Infection on hMSH2 and P53 Proteins in Gastric Carcinogenesis

OBJECTIVE To investigate the effect of Helicobacter pylori （H pylon） infection on expression of hMSH2 and P53 and its possible carcinogenic mechanism. METHODS H pylori infection was detected using a rapid urease test and haematoxylin and eosin （H＆E） staining. The hMSH2 and P53 proteins in gastric cancer （GC） tissue, its adjacent mucosa, gastritic mucosa and normal gastric mucosa were detected by the immunohistochemical SP method. RESULTS （1） The positive rate of hMSH2 expression in GC tissue （62.7%）was higher than those in non-cancer tissues （P〈0.001）; the positive rate of hMSH2 expression in poorly differentiated adenocarcinoma （76.4%） was higher than that in other carcinomas （P〈0.05）. The positive rate of P53 expression in GC tissue （51.9%） was higher than that in noncancer tissues （P〈0.001）; the positive rate of P53 expression in well-differentiated adenocarcinoma （32.6 %） was lower than that in other carcinomas （P〈0.01）. （2） The positive rate of hMSH2 expression in GC tissue with H pylori infection was lower than that without the infection （52.8% vs. 74.5%; P〈0.05）. The positive rate of P53 expression in GC tissue with H pylori infection was higher than that without the infection （61.4% vs. 40.6%; P〈0.05）.（3） The expression of hMSH2 and P53 in GC tissue correlated positively （r=0.457, P〈0.01）. CONCLUSION High expression of hMSH2 and P53 as well as their interaction may be involved in gastric carcinogenesis; H pylori infection affecting expression of hMSH2 and P53 may be one of its carcinogenic mechanisms.

Clinicopathological Significance of E-cadherin and PCNA Expression in Hunman Non-small Cell Lung Cancer

OBJECTIVE This study was designed to assess E-cadherin (E-cad)and proliferating cell nuclear antigen(PCNA)expression as well as their clinicopathological significance in hunman non- small cell lung cancers(NSCLCs).Possible molecular mechanisms of differentiation and metastasis of NSCLCs are discussed. METHODS Immunohistochemical and immunofluorescence double staining were performed to examine the expression of E-cad and PCNA in 68 primary NSCLCs cases. RESULTS The E-cad expression in squamous cell carcinomas and adenocarcinomas showed no significant difference.E-cad expression had a positive correlation with the histological- differentiated grade.A significant difference of E-cad expression was found between metastatic and non-metastatic groups.PCNA expression in squamous cell carcinomas and adenocarcinomas showed no significant difference.The PCNA expression had a reverse correlation with the histological-differentiated grade.A significant difference of PCNA expression was found between metastatic and non-metastatic groups.The E-cad and PCNA expression presented a reverse correlation. CONCLUSION E-cad expression is not associated with the histological type of NSCLC,but is associated with differentiation and metastasis of the cancer.Down-regulation of E-cad expression affects the proliferation of cancer cells.Conjoint analysis of E-cad and PCNA expression is a good way to evaluate tumor biological behavior.

Relation of Cystatin C and Cathepsin B Expression to the Pathological Grade and Invasion of Human Gliomas

OBJECTIVE To explore the relation of cystatin C and cathepsin B expression to the pathological grade and invasion of human gliomas. METHODS A immunohistochemical method was used to detect the expression of cystatin C and cathepsin B in 57 glioma samples. RESULTS The expression of cystatin C in high-grade （Grade Ⅲ-Ⅳ ）gliomas was significantly weaker than that in low-grade（Grade Ⅰ-Ⅱ, P=0.0001）. On the other hand, the expression of cathepsin B in high-grade gliomas was significantly stronger than that in low-grade （P=0.0001）. Cystatin C expression correlated inversely with cathepsin B expression in gliomas （P=0.01）. CONCLUSION Cystatin C and cathepsin B expression is related to the pathological grade and invasion of gliomas. Combining detection of cystatin C and cathepsin B expressions might provide significant information for clinical assessment of maglignant phenotypes and invasion of gliomas.

RUAP:Random Rearrangement Block Matrix-Based Ultra-Lightweight RFID Authentication Protocol for End-Edge-Cloud Collaborative Environment

Cloud computing provides powerful processing capabilities for large-scale intelligent Internet of things(IoT)terminals.However,the massive realtime data processing requirements challenge the existing cloud computing model.The edge server is closer to the data source.The end-edge-cloud collaboration offloads the cloud computing tasks to the edge environment,which solves the shortcomings of the cloud in resource storage,computing performance,and energy consumption.IoT terminals and sensors have caused security and privacy challenges due to resource constraints and exponential growth.As the key technology of IoT,Radio-Frequency Identification(RFID)authentication protocol tremendously strengthens privacy protection and improves IoT security.However,it inevitably increases system overhead while improving security,which is a major blow to low-cost RFID tags.The existing RFID authentication protocols are difficult to balance overhead and security.This paper designs an ultra-lightweight encryption function and proposes an RFID authentication scheme based on this function for the end-edge-cloud collaborative environment.The BAN logic proof and protocol verification tools AVISPA formally verify the protocol’s security.We use VIVADO to implement the encryption function and tag’s overhead on the FPGA platform.Performance evaluation indicates that the proposed protocol balances low computing costs and high-security requirements.

A test method for analyzing the deformation of landslide model

In order to study the overall deformation of geotechnical model conveniently,the worksite of landslide bridge foundation reinforced by the front and rear row anti-slide piles in Chenglan railway was taken as an example.On the basis of shaking tabe test of a 1/40 reduced scale model,the landslide deformation caused by vibration waves was monitored through burying self-made phosphor bronze strips in soil.Combined with the horizontal and vertical coordinates of the bending strain points on the phosphor bronze strips,the digital matrix was converted by applying Renka Cline random matrix generation method,and the two-dimensional contour plots were drawn based on it.The results showed that the two-dimensional contour plots reflected the basic law of landslide deformation reasonably,and it revealed the evolution process of landslide deformation and failure.The research conclusions were consistent with the test phenomenon,which met the basic requirements of overall deformation analysis of landslide model.This proposed method can monitor multiple cross sections and was practical for model test.