With the development of the Internet,image encryption technology has become critical for network security.Traditional methods often suffer from issues such as insufficient chaos,low randomness in key generation,and po...With the development of the Internet,image encryption technology has become critical for network security.Traditional methods often suffer from issues such as insufficient chaos,low randomness in key generation,and poor encryption efficiency.To enhance performance,this paper proposes a new encryption algorithm designed to optimize parallel processing and adapt to images of varying sizes and colors.The method begins by using SHA-384 to extract the hash value of the plaintext image,which is then processed to determine the chaotic system’s initial value and block size.The image is padded and divided into blocks for further processing.A novel two-dimensional infinite collapses hyperchaotic map(2DICHM)is employed to generate the intra-block scrambling sequence,while an improved variable Joseph traversal sequence is used for inter-block scrambling.After removing the padding,3D forward and backward shift diffusions,controlled by the 2D-ICHM sequences,are applied to the scrambled image,producing the ciphertext.Simulation results demonstrate that the proposed algorithm outperforms others in terms of entropy,anti-noise resilience,correlation coefficient,robustness,and encryption efficiency.展开更多
The high thermal conductivity of the nanoparticles in hybrid nanofluids results in enhanced thermal conductivity associated with their base fluids.Enhanced heat transfer is a result of this high thermal conductivity,w...The high thermal conductivity of the nanoparticles in hybrid nanofluids results in enhanced thermal conductivity associated with their base fluids.Enhanced heat transfer is a result of this high thermal conductivity,which has significant applications in heat exchangers and engineering devices.To optimize heat transfer,a liquid film of Cu and TiO_(2)hybrid nanofluid behind a stretching sheet in a variable porous medium is being considered due to its importance.The nature of the fluid is considered time-dependent and the thickness of the liquid film is measured variable adjustable with the variable porous space and favorable for the uniform flow of the liquid film.The solution of the problem is acquired using the homotopy analysis method HAM,and the artificial neural network ANN is applied to obtain detailed information in the form of error estimation and validations using the fitting curve analysis.HAM data is utilized to train the ANN in this study,which uses Cu and TiO_(2)hybrid nanofluids in a variable porous space for unsteady thin film flow,and it is used to train the ANN.The results indicate that Cu and TiO_(2)play a greater role in boosting the rate.展开更多
The second-order backward differential formula(BDF2)and the scalar auxiliary variable(SAV)approach are applied to con‐struct the linearly energy stable numerical scheme with the variable time steps for the epitaxial ...The second-order backward differential formula(BDF2)and the scalar auxiliary variable(SAV)approach are applied to con‐struct the linearly energy stable numerical scheme with the variable time steps for the epitaxial thin film growth models.Under the stepratio condition 0<τ_(n)/τ_(n-1)<4.864,the modified energy dissipation law is proven at the discrete levels with regardless of time step size.Nu‐merical experiments are presented to demonstrate the accuracy and efficiency of the proposed numerical scheme.展开更多
目的:探讨司美格鲁肽联合瑞舒伐他汀对2型糖尿病合并缺血性心肌病患者血糖血脂、炎症因子、心功能及心率变异性的影响。方法:选取2022年10月至2023年10月我院收治住院的180例2型糖尿病合并缺血性心肌病的患者作为研究对象。采用随机对...目的:探讨司美格鲁肽联合瑞舒伐他汀对2型糖尿病合并缺血性心肌病患者血糖血脂、炎症因子、心功能及心率变异性的影响。方法:选取2022年10月至2023年10月我院收治住院的180例2型糖尿病合并缺血性心肌病的患者作为研究对象。采用随机对照的方法,分为试验组和对照组,各90例。对照组采用常规药物联合瑞舒伐他汀,试验组在常规药物基础上给予瑞舒伐他汀联合司美格鲁肽。比较两组患者治疗前后血糖血脂、炎症因子、心功能以及心率变异性指标变化。结果:与治疗前相比,两组治疗后血糖、血脂、炎症因子指标均显著改善(P<0.05)。与对照组相比,治疗后试验组患者FPG、2 h PBG和HbA1c水平均降低(P<0.05);试验组患者TG、TC、LDL-C水平均降低,而HDL-C水平升高(P<0.001);试验组CRP、IL-6水平均降低(P<0.05),两组患者TNF-α水平差异无统计学意义(P>0.05)。与治疗前相比,两组患者治疗后LVEF、SDNN、SDANN、PNN50和RMSSD水平均升高(P<0.05);治疗后试验组患者心率变异性指标(SDNN,SDANN,PNN50和RMSSD)较对照组均升高(P<0.001),而两组LVEF水平差异无统计学意义(P>0.05)。结论:司美格鲁肽联合瑞舒伐他汀对2型糖尿病合并缺血性心肌病治疗效果显著,可有效调节糖脂代谢,减轻炎症反应,改善心功能和心率变异性。展开更多
BACKGROUND Colorectal cancer(CRC)is the third most diagnosed malignancy worldwide and a frequent comorbidity among these patients is type 2 diabetes mellitus(T2DM).The coexistence of these conditions poses significant...BACKGROUND Colorectal cancer(CRC)is the third most diagnosed malignancy worldwide and a frequent comorbidity among these patients is type 2 diabetes mellitus(T2DM).The coexistence of these conditions poses significant challenges to glycemic management,particularly during chemotherapy.AIM To assess the effects of individualized exercise training(IET)on glycemic control and nutritional status in patients with T2DM undergoing chemotherapy for CRC.METHODS In this retrospective study,clinical data from 245 patients with T2DM and on chemotherapy for CRC between November 2023 and December 2024 were analyzed.Patients were stratified into two groups according to their treatment regimens:The standard care(SC)group(n=111),which received conventional chemotherapy and diabetes management,and an IET group(n=134),which received additional personalized exercise interventions alongside SC.Parameters assessed included fasting plasma glucose,glycosylated hemoglobin,glycemic variability indices,nutritional biomarkers,markers of intestinal permeability,and adverse events.RESULTS Patients in the IET group demonstrated significant improvements in glycemic control,nutritional biomarkers,and glycemic variability(all P<0.05),compared with the SC group.The markers of intestinal permeability also improved significantly in the IET group(P<0.05).Meanwhile,no statistically significant difference in the incidence of adverse events was found between the two groups(P>0.05).These findings suggest that individualized exercise interventions can enhance metabolic,nutritional,and gastrointestinal outcomes without increasing treatment-related risks.CONCLUSION Personalized exercise training may offer clinically meaningful benefits in glycemic regulation and nutritional status for patients with T2DM and on chemotherapy for CRC.展开更多
基金Project supported by the National Natural Science Foundation of China(Grant Nos.62105004 and 52174141)the College Student Innovation and Entrepreneurship Fund Project(Grant No.202210361053)+4 种基金Anhui Mining Machinery and Electrical Equipment Coordination Innovation Center,Anhui University of Science&Technology(Grant No.KSJD202304)the Anhui Province Digital Agricultural Engineering Technology Research Center Open Project(Grant No.AHSZNYGC-ZXKF021)the Talent Recruitment Special Fund of Anhui University of Science and Technology(Grant No.2024yjrc175)the Graduate Innovation Fund Project of Anhui University of Science and Technology(Grant Nos.2024cx2067,2024cx2107,and 2024cx2064)Seed Support Project for Postgraduate Innovation,Entrepreneurship and Practice at Anhui University of Science and Technology(Grant No.2024cxcysj084).
文摘With the development of the Internet,image encryption technology has become critical for network security.Traditional methods often suffer from issues such as insufficient chaos,low randomness in key generation,and poor encryption efficiency.To enhance performance,this paper proposes a new encryption algorithm designed to optimize parallel processing and adapt to images of varying sizes and colors.The method begins by using SHA-384 to extract the hash value of the plaintext image,which is then processed to determine the chaotic system’s initial value and block size.The image is padded and divided into blocks for further processing.A novel two-dimensional infinite collapses hyperchaotic map(2DICHM)is employed to generate the intra-block scrambling sequence,while an improved variable Joseph traversal sequence is used for inter-block scrambling.After removing the padding,3D forward and backward shift diffusions,controlled by the 2D-ICHM sequences,are applied to the scrambled image,producing the ciphertext.Simulation results demonstrate that the proposed algorithm outperforms others in terms of entropy,anti-noise resilience,correlation coefficient,robustness,and encryption efficiency.
文摘The high thermal conductivity of the nanoparticles in hybrid nanofluids results in enhanced thermal conductivity associated with their base fluids.Enhanced heat transfer is a result of this high thermal conductivity,which has significant applications in heat exchangers and engineering devices.To optimize heat transfer,a liquid film of Cu and TiO_(2)hybrid nanofluid behind a stretching sheet in a variable porous medium is being considered due to its importance.The nature of the fluid is considered time-dependent and the thickness of the liquid film is measured variable adjustable with the variable porous space and favorable for the uniform flow of the liquid film.The solution of the problem is acquired using the homotopy analysis method HAM,and the artificial neural network ANN is applied to obtain detailed information in the form of error estimation and validations using the fitting curve analysis.HAM data is utilized to train the ANN in this study,which uses Cu and TiO_(2)hybrid nanofluids in a variable porous space for unsteady thin film flow,and it is used to train the ANN.The results indicate that Cu and TiO_(2)play a greater role in boosting the rate.
文摘The second-order backward differential formula(BDF2)and the scalar auxiliary variable(SAV)approach are applied to con‐struct the linearly energy stable numerical scheme with the variable time steps for the epitaxial thin film growth models.Under the stepratio condition 0<τ_(n)/τ_(n-1)<4.864,the modified energy dissipation law is proven at the discrete levels with regardless of time step size.Nu‐merical experiments are presented to demonstrate the accuracy and efficiency of the proposed numerical scheme.
文摘目的:探讨司美格鲁肽联合瑞舒伐他汀对2型糖尿病合并缺血性心肌病患者血糖血脂、炎症因子、心功能及心率变异性的影响。方法:选取2022年10月至2023年10月我院收治住院的180例2型糖尿病合并缺血性心肌病的患者作为研究对象。采用随机对照的方法,分为试验组和对照组,各90例。对照组采用常规药物联合瑞舒伐他汀,试验组在常规药物基础上给予瑞舒伐他汀联合司美格鲁肽。比较两组患者治疗前后血糖血脂、炎症因子、心功能以及心率变异性指标变化。结果:与治疗前相比,两组治疗后血糖、血脂、炎症因子指标均显著改善(P<0.05)。与对照组相比,治疗后试验组患者FPG、2 h PBG和HbA1c水平均降低(P<0.05);试验组患者TG、TC、LDL-C水平均降低,而HDL-C水平升高(P<0.001);试验组CRP、IL-6水平均降低(P<0.05),两组患者TNF-α水平差异无统计学意义(P>0.05)。与治疗前相比,两组患者治疗后LVEF、SDNN、SDANN、PNN50和RMSSD水平均升高(P<0.05);治疗后试验组患者心率变异性指标(SDNN,SDANN,PNN50和RMSSD)较对照组均升高(P<0.001),而两组LVEF水平差异无统计学意义(P>0.05)。结论:司美格鲁肽联合瑞舒伐他汀对2型糖尿病合并缺血性心肌病治疗效果显著,可有效调节糖脂代谢,减轻炎症反应,改善心功能和心率变异性。
文摘BACKGROUND Colorectal cancer(CRC)is the third most diagnosed malignancy worldwide and a frequent comorbidity among these patients is type 2 diabetes mellitus(T2DM).The coexistence of these conditions poses significant challenges to glycemic management,particularly during chemotherapy.AIM To assess the effects of individualized exercise training(IET)on glycemic control and nutritional status in patients with T2DM undergoing chemotherapy for CRC.METHODS In this retrospective study,clinical data from 245 patients with T2DM and on chemotherapy for CRC between November 2023 and December 2024 were analyzed.Patients were stratified into two groups according to their treatment regimens:The standard care(SC)group(n=111),which received conventional chemotherapy and diabetes management,and an IET group(n=134),which received additional personalized exercise interventions alongside SC.Parameters assessed included fasting plasma glucose,glycosylated hemoglobin,glycemic variability indices,nutritional biomarkers,markers of intestinal permeability,and adverse events.RESULTS Patients in the IET group demonstrated significant improvements in glycemic control,nutritional biomarkers,and glycemic variability(all P<0.05),compared with the SC group.The markers of intestinal permeability also improved significantly in the IET group(P<0.05).Meanwhile,no statistically significant difference in the incidence of adverse events was found between the two groups(P>0.05).These findings suggest that individualized exercise interventions can enhance metabolic,nutritional,and gastrointestinal outcomes without increasing treatment-related risks.CONCLUSION Personalized exercise training may offer clinically meaningful benefits in glycemic regulation and nutritional status for patients with T2DM and on chemotherapy for CRC.
