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后路半椎体切除短节段固定儿童先天性脊柱畸形

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中国矫形外科杂志 2024年第7期32卷 650-653页

作者：张福勇王晓东甄允方方建峰祝振华俞文涛刘文栋苏州大学附属儿童医院骨科江苏苏州215000

[目的]探讨后路半椎体切除短节段固定治疗儿童先天性脊柱畸形的临床疗效。[方法]回顾性分析2016年12月—2020年6月采用后路半椎体切除短节段固定治疗的21例先天性半椎体畸形患儿的临床资料,评估临床及影像资料。[结果]所有患者均顺利完... 详细信息

[目的]探讨后路半椎体切除短节段固定治疗儿童先天性脊柱畸形的临床疗效。[方法]回顾性分析2016年12月—2020年6月采用后路半椎体切除短节段固定治疗的21例先天性半椎体畸形患儿的临床资料,评估临床及影像资料。[结果]所有患者均顺利完成手术,术中无神经血管损伤等严重并发症。手术时间平均(199.3±10.7)min;术中出血量平均(491.4±74.1)ml。手术固定融合节段平均(2.8±0.2)节。影像方面,与术前相比,术后即刻及末次随访时,冠状面Cobb角[(37.7±2.2)°,(10.7±2.0)°,(10.1±2.0)°,P<0.001]、局部侧凸Cobb角[(32.8±2.0)°,(7.2±1.8)°,(6.1±1.6)°,P<0.001]、顶椎偏移[(22.4±2.8)mm,(11.3±1.5)mm,(7.2±0.9)mm,P<0.001]、头侧代偿[(15.9±1.9)°,(6.2±1.1)°,(4.7±0.8)°,P=0.002]、尾侧代偿[(18.6±1.8)°,(7.8±1.3)°,(5.7±1.1)°,P<0.001]、局部后凸角[(19.0±3.0)°,(7.9±1.4)°,(7.3±1.4)°,P<0.001]均显著减小。[结论]单一后路超声骨刀切除半椎体,短节段固定儿童先天性脊柱侧凸畸形,手术时间短,术中出血少,矫形满意,临床效果好。

关键词：先天性畸形脊柱侧凸半椎体切除脊柱融合

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河西地区加工型辣椒品种比较试验

安徽农业科学 2024年第8期52卷 54-57页

作者：朱珍花濮丹殷尧翥李维芳牛童甘肃亚盛农业研究院有限公司甘肃兰州730000

以当地主栽品种“红源6号”为对照,对7个优异辣椒品种进行品种比较试验,以期筛选出适合在河西地区推广种植的优良加工型品种。结果表明,“镇研红8号”色价、鲜椒产量和干椒产量在7个品种中排名均为第一,分别为14.42、29178.0 kg/hm^(2)... 详细信息

以当地主栽品种“红源6号”为对照,对7个优异辣椒品种进行品种比较试验,以期筛选出适合在河西地区推广种植的优良加工型品种。结果表明,“镇研红8号”色价、鲜椒产量和干椒产量在7个品种中排名均为第一,分别为14.42、29178.0 kg/hm^(2)、10727.4 kg/hm^(2),晒干率最小,为36.77%,说明该品种色价高、丰产、含水量高、不易干制,适合采收鲜椒作为酱制原料或提取辣椒红素。“21SGP-41”鲜椒和干椒产量分别为18289.05和8262.90 kg/hm^(2),辣度最高,为20274.49 SHU,色价排名第二,为13.42,晒干率最大,为45.18%,说明该品种风味好,含水量低,易干制,适合干制后作为普通辣椒制品加工原料或提取辣椒素。该研究筛选出“镇研红8号”和“21SGP-41”2个品种进一步在河西地区推广种植。

关键词：加工辣椒品种比较产量辣度色价

Nuclear charge radius predictions by kernel ridge regression with odd-even effects

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Nuclear Science and Techniques 2024年第2期35卷 94-102页

作者： Lu Tang zhen-hua Zhang Mathematics and Physics Department North China Electric Power UniversityBeijing 102206China Hebei Key Laboratory of Physics and Energy Technology North China Electric Power UniversityBaoding 071000China

The extended kernel ridge regression(EKRR)method with odd-even effects was adopted to improve the description of the nuclear charge radius using five commonly used nuclear *** are:(i)the isospin-dependent A^(1∕3) formula,(ii)relativistic continuum Hartree-Bogoliubov(RCHB)theory,(iii)Hartree-Fock-Bogoliubov(HFB)model HFB25,(iv)the Weizsacker-Skyrme(WS)model WS*,and(v)HFB25**** the last two models,the charge radii were calculated using a five-parameter formula with the nuclear shell corrections and deformations obtained from the WS and HFB25 models,*** each model,the resultant root-mean-square deviation for the 1014 nuclei with proton number Z≥8 can be significantly reduced to 0.009-0.013 fm after considering the modification with the EKRR *** best among them was the RCHB model,with a root-mean-square deviation of 0.0092 *** extrapolation abilities of the KRR and EKRR methods for the neutron-rich region were examined,and it was found that after considering the odd-even effects,the extrapolation power was improved compared with that of the original KRR *** strong odd-even staggering of nuclear charge radii of Ca and Cu isotopes and the abrupt kinks across the neutron N=126 and 82 shell closures were also calculated and could be reproduced quite well by calculations using the EKRR method.

关键词： Nuclear charge radius Machine learning Kernel ridge regression method

Deep genome skimming reveals the hybrid origin of Pseudosasa gracilis (Poaceae: Bambusoideae)

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Plant Diversity 2024年第3期46卷 344-352页

作者： Xiang-Zhou Hu Cen Guo Sheng-Yuan Qin De-zhu Li zhen-hua Guo Germplasm Bank of Wild Species Kunming Institute of BotanyChinese Academy of SciencesKunmingYunnan 650201China University of Chinese Academy of Sciences Beijing 100049China

Pseudosasa gracilis(Poaceae:Bambusoideae)is a temperate woody bamboo species endemic to Southcentral China with a narrow *** phylogenetic studies revealed an unexpected,isolated phylogenetic position of *** we conducted phylogenomic analysis by sampling populations of *** and its sympatric species *** and Sinosasa polytricha reflecting different genomic signals,by deep genome *** molecular evidence from chloroplast genes and genome-wide SNPs,we deciphered the phylogenetic relationships of *** plastid and nuclear data indicate that *** is more closely related to Sinosasa,which is discordant with the taxonomic *** further explore this molecular-morphological conflict,we screened 411“perfect-copy”syntenic genes to reconstruct phylogenies using both the concatenation and coalescent *** observed extensive discordance between gene trees and the putative species tree.A significant hybridization event was detected based on 411 genes from the D subgenome,showing *** was a hybrid descendant between Sinosasa longiligulata and ***,with 63.56%and 36.44%inheritance probabilities of each ***,introgression events were detected in the C subgenome between *** and *** in the same distribution *** findings suggest that sympatric hybridization and introgression play a crucial role in the origin of *** providing an empirical example of bamboo of hybrid origin using comprehensive analyses based on genomic data from different inheritance systems and morphological characters,our study represents a step forward in understanding of reticulate evolution of bamboos.

关键词： Phylogenomics Hybridization Introgression Pseudosasa gracilis Pseudosasa Sinosasa

For LEO Satellite Networks: Intelligent Interference Sensing and Signal Reconstruction Based on Blind Separation Technology

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China Communications 2024年第2期21卷 85-95页

作者： Chengjie Li Lidong zhu zhen Zhang The Key Laboratory for Computer Systems of State Ethnic Affairs Commission School of Computer Science and Technology(Southwest Minzu University)Chengdu 610000China National Key Laboratory of Science and Technology on Communications(University of Electronic Science and Technology of China) Chengdu 610000China College of Computer Science(Sichuan University) Chengdu 610000China

In LEO satellite communication networks,the number of satellites has increased sharply, the relative velocity of satellites is very fast, then electronic signal aliasing occurs from time to time. Those aliasing signals make the receiving ability of the signal receiver worse, the signal processing ability weaker,and the anti-interference ability of the communication system lower. Aiming at the above problems, to save communication resources and improve communication efficiency, and considering the irregularity of interference signals, the underdetermined blind separation technology can effectively deal with the problem of interference sensing and signal reconstruction in this scenario. In order to improve the stability of source signal separation and the security of information transmission, a greedy optimization algorithm can be executed. At the same time, to improve network information transmission efficiency and prevent algorithms from getting trapped in local optima, delete low-energy points during each iteration process. Ultimately, simulation experiments validate that the algorithm presented in this paper enhances both the transmission efficiency of the network transmission system and the security of the communication system, achieving the process of interference sensing and signal reconstruction in the LEO satellite communication system.

关键词： blind source separation greedy optimization algorithm interference sensing LEO satellite communication networks signal reconstruction

Synergistic catalysis of the N-hydroxyphthalimide on flower-like bimetallic metal-organic frameworks for boosting oxidative desulfurization

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Petroleum Science 2024年第1期21卷 674-682页

作者： Jing He Kun zhu Wei Jiang Dong-Ao zhu Lin-hua zhu Hai-Yan huang Wen-Shuai zhu hua-Ming Li Institute for Energy Research Jiangsu UniversityZhenjiang212013JiangsuChina College of Chemistry and Chemical Engineering Hainan Normal UniversityKey Laboratory of Water Pollution Treatment and Resource Reuse of Hainan ProvinceHaikou571158HainanChina

Synergic catalytic effect between active sites and supports greatly determines the catalytic activity for the aerobic oxidative desulfurization of fuel *** this work,Ni-doped Co-based bimetallic metal-organic framework(CoNi-MOF)is fabricated to disperse N-hydroxyphthalimide(NHPI),in which the whole catalyst provides plentiful synergic catalytic effect to improve the performance of oxidative desulfurization(ODS).As a bimetallic MOF,the second metal Ni doping results in the flower-like morphology and the modification of electronic properties,which ensure the exposure of NHPI and strengthen the synergistic effect of the overall *** with the monometallic Co-MOF and naked NHPI,the NHPI@CoNi-MOF triggers the efficient activation of molecular oxygen and improves the ODS performance without an *** sulfur removal of dibenzothiophene-based model oil reaches 96.4%over the NHPI@CoNi-MOF catalyst in 8 h of ***,the catalytic product of this aerobic ODS reaction is sulfone,which is adsorbed on the catalyst surface due to the difference in *** work provides new insight and strategy for the design of a strong synergic catalytic effect between NHPI and bimetallic supports toward high-activity aerobic ODS materials.

关键词： Metal-organic frameworks Doped Bimetallic N-hydroxyphthalimide Aerobic processes Oxidative desulfurization

Anti-saturation fault-tolerant adaptive torsional vibration control with fixed-time prescribed performance for rolling mill main drive system

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Journal of Iron and Steel Research(International) 2024年第3期31卷 660-669页

作者： Shuang Liu Chen Du Cong Zhang zhen-hua Bai Key Lab of Industrial Computer Control Engineering of Hebei Province Yanshan UniversityQinhuangdao 066004HebeiChina National Engineering Research Center for Equipment and Technology of Cold Strip Rolling Yanshan UniversityQinhuangdao 066004HebeiChina

An anti-saturation fault-tolerant adaptive torsional vibration control method with fixed-time prescribed performance for the rolling mill main drive system(RMMDS)was investigated,which is affected by control input saturation,actuator faults,sensor measurement errors,and parameter ***,we gave a continuously differentiable saturation function to approximate the control input saturation characteristic of the RMMDS,translating the saturation characteristic into the matched uncertainty and unknown time-varying gain in the ***,an RMMDS mathematical model with unmatched uncertainty and unknown time-varying gain was developed,taking into account the presence of control input saturation,actuator faults,sensor measurement errors,and parameter *** on the established mathematical model,an error transformation model of the roll speed tracking was constructed by the equivalent error transformation *** to the error transformation model,a barrier Lyapunov function and a novel adaptive controller were studied to ensure that the roll speed tracking error always evolves inside a fixed-time asymmetric ***,numerical simulations were performed in Matlab/Simulink to verify the effectiveness and superiority of the proposed control method in suppressing the RMMDS torsional vibration.

关键词： Fixed-time prescribed performance Control input saturation Actuator fault Unknown time-varying gain Adaptive control Asymmetric constraint

Revisiting the island of hexadecapoledeformation nuclei in the A≈150 mass region:focusing on the model application to nuclear shapes and masses

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Communications in Theoretical Physics 2024年第2期76卷 74-88页

作者： Xiao-Yang Wei hua-Lei Wang zhen-zhen Zhang Min-Liang Liu School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China Key Laboratory of High Precision Nuclear Spectroscopy Institute of Modern PhysicsChinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China

Based on the potential-energy-surface calculation,the impact of different deformation degrees of freedom on a single-particle structure and binding energies in nuclei around^(152)Nd,located on one of the hexadecapole-deformation islands,is analyzed in a multi-dimensional deformation *** energy maps,curves and tables are presented to indicate nuclear *** calculated equilibrium deformations and binding energies with different potential parameters are compared with experimental data and other *** is found that the inclusion of the hexadecapole deformations,especially the axial one,can improve the theoretical description of both nuclear shapes and *** addition,our calculated potential-energy curve shows that a critical deformation-point,β_(2)≈0.4,exists—the triaxial(hexadecapole)deformation effect can be neglectable but the hexadecapole(triaxial)one plays an important role before(after)such a critical point.

关键词： hexadecapole deformation binding energy potential-energy-surface calculation nuclear property

Clinical study of enhanced recovery after surgery in laparoscopic appendectomy for acute appendici

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World Journal of Gastrointestinal Surgery 2024年第3期16卷 816-822页

作者： zhu-Lin Li hua-Chong Ma Yong Yang Jian-Jun Chen zhen-Jun Wang Department of General Surgery Beijing Chao-Yang HospitalCapital Medical UniversityBeijing 100020China

BACKGROUND Enhanced recovery after surgery(ERAS)protocol is a comprehensive manage-ment modality that promotes patient recovery,especially in the patients undergo-ing digestive tumor ***,it is less commonly used in the *** To study the application value of ERAS in laparoscopic surgery for acute *** A total of 120 patients who underwent laparoscopic appendectomy due to acute appendicitis were divided into experimental group and control group by random number table method,including 63 patients in the experimental group and 57 patients in the control *** in the experimental group were managed with the ERAS protocol,and those in the control group were received the tra-ditional *** exhaust time,the hospitalization duration,the hospita-lization expense and the pain score between the two groups were *** There was no significant difference in age,gender,body mass index and Sunshine Appendicitis Grading System score between the experimental group and the con-trol group(P>0.05).Compared to the control group,the patients in the expe-rimental group had earlier exhaust time,shorter hospitalization time,less hospi-talization cost and lower degree of pain *** differences were statis-tically significant(P<0.01).CONCLUSION ERAS could significantly accelerate the recovery of patients who underwent la-paroscopic appendectomy for acute appendicitis,shorten the hospitalization time and reduce hospitalization *** is a safe and effective approach.

关键词： Enhanced recovery after surgery Appendicectomy Laparoscopy Acute appendicitis Treatment