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Systemic immune-inflammation index combined with pediatric appendicitis score in assessing the severity and prognosis for paediatric appendicitis

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World Journal of Gastrointestinal Surgery 2024年第8期16卷 2565-2573页

作者： Li-Ming Guo zhi-Hui jiang Hong-Zhen Liu Department of General Surgery Qingdao Women and Children’s HospitalQingdao 266000Shandong ProvinceChina Department of Pediatric Surgery Children's Hospital Affiliated to Shandong UniversityJinan 250022Shandong ProvinceChina Department of Pediatric Surgery Jinan Children's HospitalJinan 250022Shandong ProvinceChina

BACKGROUND Pediatric appendicitis is a common cause of abdominal pain in children and is recognized as a significant surgical emergency.A prompt and accurate diagnosis is essential to prevent complications such as perforation and *** To investigate the predictive value of the systemic immune-inflammation index(SII)combined with the pediatric appendicitis score(PAS)for the assessment of disease severity and surgical outcomes in children aged 5 years and older with *** Clinical data of 104 children diagnosed with acute appendicitis were *** participants were categorized into the acute appendicitis group and chronic appendicitis group based on disease presentation and further stratified into the good prognosis group and poor prognosis group based on *** SII and PAS were measured,and a joint model using the combined SII and PAS was constructed to predict disease severity and surgical *** Significant differences were observed in the SII and PAS parameters between the acute appendicitis group and chronic appendicitis *** analysis showed associations among the SII,PAS,and disease severity,with the combined SII and PAS model demonstrating significant predictive value for assessing disease severity[aera under the curve(AUC)=0.914]and predicting surgical outcomes(AUC=0.857)in children aged 5 years and older with *** The study findings support the potential of integrating the SII with the PAS for assessing disease severity and predicting surgical outcomes in pediatric appendicitis,indicating the clinical utility of the combined SII and PAS model in guiding clinical decision-making and optimizing surgical management strategies for pediatric patients with appendicitis.

关键词： Systemic immune-inflammation index Pediatric appendicitis score Disease severity Surgical outcomes Risk factor Logistic regression Receiver operating characteristic analysis

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Kinematics/Fuzzy Logic Combined Controller for Formation Control of Mobile Robots

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Journal of Harbin Institute of Technology(New Series) 2013年第4期20卷 121-128页

作者： zhi-jiang Du Li-Min Ren Wei-Dong Wang Wei Dong State Key Laboratory of Robotics and System Harbin Institute of Technology College of Mechanical Engineering Beihua University

A kinematics and fuzzy logic combined formation controller was proposed for leader-follower based formation control using backstepping method in order to accommodate the dynamics of the *** kinematics controller generates desired linear and angular velocities for follower robots,which make the configuration of follower robots coverage to the *** fuzzy logic controller takes dynamics of the leader and followers into consideration,which is built upon Mamdani fuzzy *** force and torque acting on robots are described as linguistic variables and also 25 if-then rules are *** addition,the fuzzy logic controller adopts the Centroid of Area method as defuzzification strategy and makes robots’actual velocities converge to the expected which is generated by the kinematics *** innovation of the kinematics and fuzzy logic combined formation controller presented in the paper is that the perfect velocity tracking assumption is removed and realtime performance of the system is *** with traditional torque-computed controller,the velocity error convergence time in case of the proposed method is shorter than traditional torque-computed *** simulation results validate that the proposed controller can drive robot members to form the desired formation and formation tracking errors which can coverage to a neighborhood of the ***,the simulations also show that the proposed method has better velocity convergence performance than traditional torque-computed method.

关键词： kinematics/fuzzy logic combined formation controller mobile robot backstepping

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A nucleophilic 1,3-rearrangement leading to 3,4-disubstituted 3,4-dihydroquinolines

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Chinese Chemical Letters 2016年第7期27卷 1036-1039页

作者： Chun-Xian He zhi-Bo jiang Hua-Qing Cui Da-Li Yin State Key Laboratory of Bioactive Substances and Functions of Natural Medicines Institute of Materia Medica Peking Union Medical College and Chinese Academy of Medical Sciences Department of Medicinal Chemistry Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation Institute of Materia Medica Peking Union Medical College and Chinese Academy of Medical Sciences

A new nucleophilic 1,3-rearrangement is observed when treating 2-methoxyquinolino-3-lithium with an α-C substituted deoxybenzoin,and this rearrangement yielded an unusual 3,4-disubstituted 3,*** similar reactions were designed and executed to investigate this novel 1,3-rearrangement,and a mechanism involving a nucleophilic addition and a following 1,3-rearrangement with an unusual dearomatization on the quinoline ring is proposed.

关键词： 1,3-Rearrangement Dihydroquinoline derivatives Reaction mechanism

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Morphology-Controlled Growth of A1N One-Dimensional Nanostructures

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Journal of Materials Science & Technology 2008年第4期24卷 608-614页

作者： Ting XIE Min YE Xiaosheng FANG zhi jiang Li CHEN Mingguang KONG Yucheng WU Lide ZHANG Institute of Tribology Hefei University .of Technology Hefei 230009 China Key laboratory of Materials Physics Institute of Solid State Physics Chinese Academy of Sciences Hefei 230031 China

Aluminum nitride （AIN） nanowires, serrated nanoribbons, and nanoribbons were selectively obtained through a simple chloride assisted chemical vapor deposition process. The morphologies of the products could be controlled by adjusting the deposition position and the flux of the reactant gas. The morphologies and structures of the AIN products were investigated in detail. The formation mechanism of the as-prepared different morphologies of AIN one-dimensional （ID） nanostructures was discussed on the basis of the experimental results.

关键词： Aluminum nitride Morphology-controlled growth One-dimensional nanostructure

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Chloride Assisted Growth of Aluminum Nitride Nanobelts and Their Enhanced Dielectric Responses

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Chinese Journal of Chemical Physics 2008年第6期21卷 586-590页

作者： Ting Xie Min ye zhi jiang Yong Qin Yu-cheng Wu Guo-wen Meng Li-de Zhang Institute of Tribology Hefei University of Technology Hefei 230009 China Key Laboratory of Materials Physics Institute of Solid State Physics Chinese Academy of Sciences Hefei 230031 China

Aluminum nitride （AlN） nanobelts were successfully synthesized in high yield through a chloride assisted vapor-solid process. X-ray diffraction, transmission electron microscopy, and selected area electronic diffraction demonstrate that the as-prepared nanobelts are pure, structurally uniform and single crystalline, and can be indexed to hexagonal wurtzite structure. The micro observations show that there exist no defects in the obtained nanobelts. The growth direction of the nanobelts is along [0001]. The frequency spectra of the relative dielectric constant and of the dielectric loss were measured in the frequency range of 50 Hz to 5 MHz. Analysis of these spectra indicates that the interface in samples has great influence on the dielectric behavior of samples. As compared with AlN micropowders, AlN nanobelts have much higher relative dielectric constant, especially at low frequencies at room temperature.

关键词： Aluminum nitride Nanobelt Chloride assisted growth Dielectric property

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Development of Ti_(0.85)Zr_(0.17)(Cr-Mn-V)_(1.3)Fe_(0.7)-based Laves phase alloys for thermal hydrogen compression at mild operating temperatures

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Rare Metals 2022年第8期41卷 2588-2594页

作者： Zi-Ming Cao Pan-Pan Zhou Xue-Zhang Xiao Liu-Jun Zhan zhi-Fei jiang Shu-Mao Wang Li-Jun jiang Li-Xin Chen State Key Laboratory of Silicon Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou310027China Department of Materials Science and Engineering The University of ManchesterManchesterM139PLUK Institute of Energy Materials and Technology General Research Institute for Non-ferrous MetalsBeijing100088China Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province Hangzhou310013China

Metal hydride with proper hydrogen storage properties is the key component of hydride thermal hydrogen *** this work,Ti_(0.85)Zr_(0.17)(Cr-Mn-V)_(1.3)Fe_(0.7)-based alloys were developed to achieve thermal hydrogen compression at mild operating temperatures of water *** results indicate the single C 14-type Laves phase as well as homogeneously distributed elements of all *** increased Mn content in Ti_(0.85)Zr_(0.17)Cr_(1.2-x)Mn_xFe_(0.7)V_(0.1)(x=0,0.1,0.2,0.3)alloys.

关键词： alloys hydrogen Laves

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The hard X-ray nanoprobe beamline at the SSRF

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Nuclear Science and Techniques 2024年第7期35卷 79-88页

作者： Yan He Hui jiang Dong-Xu Liang zhi-Sen jiang Huai-Na Yu Hua Wang Cheng-Wen Mao Jia-Nan Xie Ai-Guo Li Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai201210China

The hard X-ray nanoprobe beamline BL13U is a phase-Ⅱ beamline project at the Shanghai Synchrotron Radiation *** beamline aims to enable comprehensive experiments at high spatial resolutions ranging from 50 to 10 nm. The X-ray energy range of the beamline, 5–25 keV, can detect most elements in the periodic table. Two operating modes were designed to accommodate the experimental requirements of high-energy resolution or high photon flux, respectively. X-ray nanofluorescence, nanodiffraction, and coherent diffraction imaging are developed as the main experimental techniques for BL13U. This paper describes the beamline optics, end station configurations, experimental methods under development, and preliminary test results. This comprehensive overview aims to provide a clear understanding of the beamline capabilities and potential applications.

关键词： Shanghai synchrotron radiation facility Hard X-ray nanoprobe X-ray nanofocusing

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Robotic gastrectomy with transvaginal specimen extraction for female gastric cancer patients

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World Journal of Gastroenterology 2015年第47期21卷 13332-13338页

作者： Shu Zhang zhi-Wei jiang Gang Wang Xiao-Bo Feng jiang Liu Jian Zhao Jie-Shou Li Department of General Surgery Jinling Hospital Medical School Nanjing University

AIM: To describe the application of complete robotic gastrectomy with transvaginal specimen extraction(TVSE) for gastric cancer ***: Between July and November 2014, eight female patients who were diagnosed with gastric adenocarcinoma underwent a TVSE following a full robot-sewn gastrectomy. According to the tumor location, the patients were allocated to two different groups; two patients received robotic total gastrectomy with TVSE and the other six received robotic distal gastrectomy with ***: Surgical procedures were successfully performed in all eight cases without conversion. The mean age was 55.3(range, 42-69) years, and the mean body mass index was 23.2(range, 21.6-26.0) kg/m2. The mean total operative time and blood loss were 224(range, 200-298) min and 62.5(range, 50-150) m L, respectively. The mean postoperative hospital stay was 3.6(range, 3-5) d. The mean number of lymph nodes resected was 23.6(range, 17-27). None was readmitted within 30 d of postoperation. During the follow-up, no stricture developed nor was any anastomotic leakage ***: It is possible to perform a TVSE following a full robot-sewn gastrectomy with standard D2 lymph node resection for female gastric cancer patients.

关键词： Gastric cancer Robotic surgery Transvaginal Natural orifice specimen extraction

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Experiences and Research Perspectives on Sustainable Development of Rice-Wheat Cropping Systems in the Chengdu Plain, China

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Agricultural Sciences in China 2010年第9期9卷 1317-1325页

作者： ZHENG Jia-guo CHI Zhong-zhi jiang Xin-lu TANG Yong-lu ZHANG Hong Tillage and Cultivation Research Center Sichuan Academy of Agricultural Sciences Chengdu 610066 P.R.China

The rice and wheat cropping pattern is one of the main cropping systems in the world. A large number of research results showed that successive cropping of rice and wheat resulted in a series of problems such as hindering nutrition absorption, gradual degeneration of soil fertility, decline of soil organic matter, and increased incidence of diseases and pests. In China, especially in the Chengdu plain where rice-wheat cropping system is practiced, productivity and soil fertility was enhanced and sustained. This paper reviews the relevant data and experiences on rice-wheat cropping in the Chengdu Plain from 1977 to 2006. The principal sustainable strategies used for rice-wheat cropping systems in Chengdu Plain included： 1） creating a favorable environment and viable rotations; 2） balanced fertilization for maintenance of sustainable soil productivity; 3） improvement of crop management for higher efficiency; and 4） use the newest cultivars and cultivation techniques to upgrade the production level. Future research is also discussed in the paper as： 1） the constant topic： a highly productive and efficient rice-wheat cropping system for sustainable growth; 2） the future trend： simplified cultivation techniques for the rice-wheat cropping system; 3） the foundation： basic research for continuous innovation needed for intensive cropping. It is concluded that in the rice-wheat cropping system, a scientific and reasonable tillage/cultivation method can not only avoid the degradation of soil productivity, but also maintain sustainable growth in the long run.

关键词： rice-wheat cropping system principle strategies rotation sustainable soil productivity simplification cultivation techniques Chengdu Plain

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Assimilation of temporal-spatial leaf area index into the CERES-Wheat model with ensemble Kalman filter and uncertainty assessment for improving winter wheat yield estimation

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Journal of Integrative Agriculture 2017年第10期16卷 2283-2299页

作者： LI He jiang zhi-wei CHEN Zhong-xin REN Jian-qiang LIU Bin Hasituya Key Laboratory of Agricultural Remote Sensing Ministry of Agriculture/Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural Sciences National Meteorological Information Center China Meteorological Administration

To accurately estimate winter wheat yields and analyze the uncertainty in crop model data assimilations, winter wheat yield estimates were obtained by assimilating measured or remotely sensed leaf area index （LAI） values. The performances of the calibrated crop environment resource synthesis for wheat （CERES-Wheat） model for two different assimilation scenarios were compared by employing ensemble Kalman filter （EnKF）-based strategies. The uncertainty factors of the crop model data assimilation was analyzed by considering the observation errors, assimilation stages and temporal-spatial scales. Overalll the results indicated a better yield estimate performance when the EnKF-based strategy was used to comprehen- sively consider several factors in the initial conditions and observations. When using this strategy, an adjusted coefficients of determination （R2） of 0.84, a root mean square error （RMSE） of 323 kg ha-1, and a relative errors （RE） of 4.15% were obtained at the field plot scale and an R2 of 0.81, an RMSE of 362 kg ha-1, and an RE of 4.52% were obtained at the pixel scale of 30 mx30 m. With increasing observation errors, the accuracy of the yield estimates obviously decreased, but an acceptable estimate was observed when the observation errors were within 20%. Winter wheat yield estimates could be improved significantly by assimilating observations from the middle to the end of the crop growing seasons. With decreasing assimilation frequency and pixel resolution, the accuracy of the crop yield estimates decreased; however, the computation time decreased. It is important to consider reasonable temporal-spatial scales and assimilation stages to obtain tradeoffs between accuracy and computation time, especially in operational systems used for regional crop yield estimates.

关键词： winter wheat yield estimates crop model data assimilation ensemble Kalman filter uncertainty leaf area index

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