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Hernia Mesh and Hernia Repair:A Review

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Engineered Regeneration 2020年第1期1卷 19-33页

作者： carmine wang see Tiffany Kim Donghui Zhu Department of Biomedical Engineering Stony Brook UniversityStony BrookNew York 11794

Hernia repair for primary and incisional hernia is the most commonly performed abdominal surgery done with extremely high *** for hernia requires surgery to close the defect;however,there are post-operative complications like chronic pain,adhesion,and infection that are *** repair involves two types of biomaterials:a fixation biomaterial and a mesh biomaterial to close the *** meshes,mostly made from different polymers,provide adequate mechanical support but are associated with postoperative complications like *** meshes are derived from allografts and xenografts that are prone to less infection;however,their mechanical strength may be too weak depending the characteristics of the hernia *** meshes being developed try to combat the post-operative complications of current surgical *** meshes that have two different surfaces have shown to have less adhesion effects but still produce varying inflammatory ***-loaded meshes are also a novel mesh that is designed to reduce infection with *** review will highlight the different fixation methods as well as the pros and cons of different mesh *** future improvements will be highlighted as well.

关键词： Hernia hernia repair abdominal wall hernia mesh mesh materials biomaterials

Orthopedic implants and devices for bone fractures and defects:Past,present and perspective

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Engineered Regeneration 2020年第1期1卷 6-18页

作者： Tiffany Kim carmine wang see Xiaochun Li Donghui Zhu Department of Biomedical Engineering Stony Brook UniversityStony BrookNew York 11794United States Department of Mechanical and Aerospace Engineering &Department of Materials Science and EngineeringUniversity of California Los AngelesLos AngelesCA 90095United States

Bone is a unique tissue that is capable of repairing itself after ***,there are certain instances of fractures and defects that require clinical intervention for proper alignment and *** with any implant,careful consideration of the material used to create the implants to treat these problems is *** the incorrect material is chosen,the implants themselves can lead to bone fractures or defects,or bone healing may not take place at *** three classes of biomaterials-metals,ceramics,and polymers-have been used in the treatment of both bone fractures and bone defects,and each has its own unique benefits and limitations for its ***,composites of these different materials have also been created to try to take advantage of all the different benefits offered by each different *** review highlights different materials that have been used for the development of internal fixators and bone graft substitutes to treat fracture and bone defects as well as their limitations and needed future research.

关键词： Bone scaffold Bone fracture Bone defect Orthopedic implant Orthopedic device

Corrigendum to“Hernia Mesh and Hernia Repair:A Review”[Engineered Regeneration,1(2020)19-33]

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Engineered Regeneration 2020年第1期1卷 114-114页

作者： carmine wang see Tiffany Kim Donghui Zhu Department of Biomedical Engineering Stony Brook UniversityStony BrookNew York 11794

The authors regret that interpretation of the work of Holmdahl et al.1 was misinterpreted in section“5.2 Biological Meshes for Abdominal Repair”.The correct interpretation is that there is no statistical difference in hernia recurrence rate for both groups in the *** corrected work does not change the conclusion that biological meshes perform the same or worst then synthetic *** authors would like to apologise for any inconvenience caused.

关键词： Mesh Regeneration meshes

Synthesis of Fluorescent Carbon Quantum Dots from Dried Lemon Peel for Determination of carmine in Drinks

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Chemical Research in Chinese Universities 2018年第2期34卷 164-168页

作者： SU Anmei wang Di SHU Xin ZHONG Qingmei CHEN Yongren LIU Jiaehen wang Yilin Guangxi Key Laboratory of Biorefinery School of Chemistry and Chemical Engineering Guangxi Universify Nanning 530004 P. R. China

Carbon quantum dots（CQDs） with a quantum yield of 11% were synthesized via a simple, low-cost and green hydrothermal treatment using dried lemon peel as carbon source. The obtained CQDs showed a strong emission at the wavelength of 505 ran with an optimum excitation of 425nm. carmine with maximum absorption wavelength at 508 nm could selectively quench the fluorescence of CQDs. Based on this principle, a fluorescence probe was developed for carmine determination. The quenching mechanism of CQDs was elucidated. A linear relationship was found in the carmine concentration range of 0.20-30.00 mg/L with the detection limit（3a/k） of 0.16 mg/L. Satisfac- tory results were achieved when the method was applied for the determination of carmine in soft drinks.

关键词： Carbon quantum dot Determination carmine Fluorescence quenching

Endoscopic detection and diagnostic strategies for minute gastric cancer:A real-world observational study

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World Journal of Gastrointestinal Oncology 2024年第8期16卷 3529-3538页

作者： Xiao-Wei Ji Jie Lin Yan-Ting wang Jing-Jing Ruan Jing-Hong Xu Kai Song Jian-Shan Mao Department of Gastroenterology The Second Affiliated HospitalZhejiang University School of MedicineHangzhou 310009Zhejiang ProvinceChina Department of Pathology The Second Affiliated HospitalZhejiang University School of MedicineHangzhou 310009Zhejiang ProvinceChina

BACKGROUND Minute gastric cancers(MGCs)have a favorable prognosis,but they are too small to be detected by endoscopy,with a maximum diameter≤5 *** To explore endoscopic detection and diagnostic strategies for *** This was a real-world observational *** endoscopic and clinicopathological parameters of 191 MGCs between January 2015 and December 2022 were retrospectively *** discoverable opportunity and typical neoplastic features were emphatically *** All MGCs in our study were of a single pathological type,97.38%(186/191)of which were differentiated-type *** light endoscopy(WLE)detected 84.29%(161/191)of MGCs,and the most common morphology of MGCs found by WLE was ***-band imaging(NBI)secondary observation detected 14.14%(27/191)of MGCs,and the most common morphology of MGCs found by NBI was *** three MGCs were detected by indigo carmine third *** a well-demarcated border lesion exhibited a typical neoplastic color,such as yellowish-red or whitish under WLE and brownish under NBI,MGCs should be *** proportion with high diagnostic confidence by magnifying endoscopy with NBI(ME-NBI)was significantly higher than the proportion with low diagnostic confidence and the only visible groups(94.19%>56.92%>32.50%,Pcarmine are helpful for detection of MGCs.A clear demarcation line combined with a typical neoplastic color using nonmagnifying observation is sufficient for diagnosis of *** improves the endoscopic diagnostic confidence of MGCs.

关键词： Minute gastric cancer White light endoscopy Narrow-band imaging endoscopy Indigo carmine Magnifying endoscopy Detection Diagnosis

基于多源信息融合的协作机器人演示编程及优化方法

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机器人 2018年第4期40卷 551-559页

作者：王斐齐欢周星群王建辉东北大学机器人科学与工程学院辽宁沈阳110819 东北大学信息科学与工程学院辽宁沈阳110819

为解决现有机器人装配学习过程复杂且对编程技术要求高等问题,提出一种基于前臂表面肌电信号和惯性多源信息融合的隐式交互方式来实现机器人演示编程.在通过演示学习获得演示人的装配经验的基础上,为提高对装配对象和环境变化的自适应能... 详细信息

为解决现有机器人装配学习过程复杂且对编程技术要求高等问题,提出一种基于前臂表面肌电信号和惯性多源信息融合的隐式交互方式来实现机器人演示编程.在通过演示学习获得演示人的装配经验的基础上,为提高对装配对象和环境变化的自适应能力,提出了一种多工深度确定性策略梯度算法(M-DDPG)来修正装配参数,在演示编程的基础上,进行强化学习确保机器人稳定执行任务.在演示编程实验中,提出一种改进的PCNN(并行卷积神经网络),称作1维PCNN(1D-PCNN),即通过1维的卷积与池化过程自动提取惯性信息与肌电信息特征,增强了手势识别的泛化性和准确率;在演示再现实验中,采用高斯混合模型(GMM)对演示数据进行统计编码,利用高斯混合回归(GMR)方法实现机器人轨迹动作再现,消除噪声点.最后,基于Primesense carmine摄像机采用帧差法与多特征图核相关滤波算法(MKCF)的融合跟踪算法分别获取X轴与Y轴方向的环境变化,采用2个相同的网络结构并行进行连续过程的深度强化学习,在轴孔相对位置变化的情况下,机械臂能根据强化学习得到的泛化策略模型自动对机械臂末端位置进行调整,实现轴孔装配的演示学习.

关键词：演示编程多源信息融合隐式人机交互深度学习强化学习

A STUDY ON VOLTAMMETRIC BEHAVIOR OF INDIGO carmine AND ITS MIXTURE WITH AMARANTH AT MERCURY FILM ELECTRODE ON SILVER SUBSTRATE

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Chinese Chemical Letters 1991年第12期2卷 945-948页

作者： Shu Cheng MO Jian Min NA Jiu Li wang Guang Zhong YANG Department of Chemical Engineering Beijing Institute of Light Industry Beijing 100037 Department of Chemistry Tianjin University Tianjin 300072

The voltammetric behavior of indigo carmine at mercury film electrode on a silver substrate (MFES) was studied in this paper. It was found that indigo carmine gave a sensitive reduction peak at a potential (Vp) of -0.11 V at pH 4.0 in aqueous solution. The MFES gave good reproducibility and life time. The peak currents (ip) depended lipearly on the concentrations of indigo carmine free 0 to 100 ng/ml. The Vp and Ip of indigo carmine at MFES were independent of the concentrations of amaranth at pH 4.0, the Vp of amaranth was -0.24 V at this pH. The differences of Vp between both colorants enabled to distinguish indigo carmine free amaranth.

关键词： A STUDY ON VOLTAMMETRIC BEHAVIOR OF INDIGO carmine AND ITS MIXTURE WITH AMARANTH AT MERCURY FILM ELECTRODE ON SILVER SUBSTRATE than AT rate ITS

基于三维荧光光谱和PSO-SVM对胭脂红含量的测定

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光谱学与光谱分析 2019年第1期39卷 150-155页

作者：王书涛彭涛李明珊王贵川孔德明王玉田燕山大学河北省测试计量技术及仪器重点实验室河北秦皇岛066004

胭脂红是一种应用广泛的食品色素,在各种食品、饮料的添加剂里都有它的身影,过量食用人工合成色素会严重危害健康。食物中色素一般都是多种联用,各种色素之间会相互产生干扰,这加大了对食品中色素检测的难度,模拟食品中多种色素共存的环... 详细信息

胭脂红是一种应用广泛的食品色素,在各种食品、饮料的添加剂里都有它的身影,过量食用人工合成色素会严重危害健康。食物中色素一般都是多种联用,各种色素之间会相互产生干扰,这加大了对食品中色素检测的难度,模拟食品中多种色素共存的环境,采用荧光光谱技术,结合PSO-SVM算法,建立一种测定混合溶液中胭脂红含量的方法。从试剂公司购买胭脂红和苋菜红固体粉末,选择胭脂红为待检测色素,苋菜红为干扰色素,配成不同浓度的胭脂红单色溶液以及加入苋菜红后的混合溶液样本,其中胭脂红的浓度在0.1～30μg·mL^(-1)之间,干扰色素苋菜红的浓度在0.1～10μg·mL^(-1)之间随意添加。运用Edinburgh Instruments公司生产的FS920稳态荧光光谱仪,测得胭脂红单色溶液与加入苋菜红后混合溶液的荧光光谱图,分析得到胭脂红的最佳激发波长为λex=326nm,最佳发射波长为λem=430nm。各选取6组不同浓度的单色样本以及混合色素样本,其中,胭脂红的物质浓度同为3,4,5,6,7和8μg·mL^(-1),苋菜红的物质浓度都定在2μg·mL^(-1)。观察6组样本在激发波长λex=326nm时的发射光谱和荧光强度的关系。单色样本中,胭脂红浓度与荧光强度线性关系良好;而在混合溶液中,随着胭脂红浓度的增加,荧光强度呈现出先降后增再降的过程,光谱线型、强度与各组分浓度间存在复杂的非线性关系,得以证明混合溶液的荧光光谱并不是由各组分光谱简单的叠加,而是在吸收光谱的过程中,胭脂红溶液与苋菜红溶液存在竞争和相互影响。配取25组胭脂红、苋菜红混合溶液,从中选择7个作为预测样本,其余18组作为训练样本。7个预测样本中胭脂红的浓度分别为1.0,2.0,4.0,6.0,9.0,12和15μg·mL^(-1),干扰物质苋菜红的物质浓度在0.1～10μg·mL^(-1)之间。选择各组样本在最佳激发波长λex=326nm下对应的荧光强度,作为检测模型的输入,以胭脂红的预测浓度作为输出。对PSO参数初始化设置后,训练输出SVM的最佳参数c和g,将所得的最佳参数输入PSO-SVM模型,得到7组预测样本的浓度预测结果分别为:1.146 9,1.860 6,3.854 4,6.1469,9.133 8,11.857 6和14.859 8μg·mL^(-1)。分析PSO-SVM的预测结果,得到胭脂红平均回收率为100.84%,预测均方根误差(RMSEP)为1.03×10-4,模型输出与真实值之间的相关系数是0.999。在同等条件下,采用误差逆向传播算法(BP)预测得到的7组样本浓度分别为:1.140 1,2.139 8,3.188 2,6.4362,8.882 7,11.860 1和12.664 3μg·mL^(-1),其平均回收率为98.56%,均方根误差为4.65×10-3,输出值与真实值之间的相关系数为0.972。与误差逆向传播算法(BP)的预测结果相比较,PSO-SVM相关系数高出2.7%,平均回收率高出0.6%,均方根误差降低了将近一个数量级。分析结果表明,通过荧光光谱技术与PSO-SVM相结合的方法,能够有效的避开干扰色素的影响,准确的测定混合溶液中胭脂红的含量,并且效果相比较于BP更加理想。

关键词：荧光光谱胭脂红粒子群优化算法支持向量机

Biochemical Evidences for Scopoletin Inhibits Ca^(2+)-ATPase Activity in the carmine Spider Mite,Tetranychus cinnabarinus(Boisduval)

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Agricultural Science & Technology 2015年第4期16卷 826-831页

作者： Qiuli HOU Dan wang Bingchuan ZHANG Wei DING Yongqiang ZHANG College of Plant Protection Southwest University Institute of Pesticide Southwest University

[Objective] This study aimed to investigate the acaricidal lffect of scopo- letin, and provide the biochemical evidences of scopoletin influencus Ca2＋-ATPase activity and gene expressions in the carmine Spider Mite, Tetranych＇us cinnabarinus. in increased protein contents; kinetic analysis showed that the catalytic capability of Ca2＋-ATPase was significantly reduced by scopoletin. [Conclusion] Scopoletin exhibits a significant inhibitory effect on Ca2＋-ATPase, and its acaricidal effect against T. cinnabarinus might be due to the direct inhibition of Ca2＋-ATPase.

关键词： Scopoletin Ca2+-ATPase Inhibition Tetranychus cinnabarinus Acaricidal