The performance of image-analysis-based drape tester is studied by analyzing the testing results. The accelerating and decelerating method is used to make the initial testing condition same before draping. A feature v...The performance of image-analysis-based drape tester is studied by analyzing the testing results. The accelerating and decelerating method is used to make the initial testing condition same before draping. A feature vector is proposed to describe the drapenbility of fabrics comprehensively. Moreover, the exponential relationship curves between drape coefficient and rotating speed are obtained from the drape tester to describe the dynamic drapeability Finally, the stability of tested results of image-analysis-based system is studied.展开更多
Based on the tests of eight kinds of typical fabrics, the relation between the drape coefficient of different fabrics and its revolving speed was analyzed and discussed. The result of regression curve fitting of exper...Based on the tests of eight kinds of typical fabrics, the relation between the drape coefficient of different fabrics and its revolving speed was analyzed and discussed. The result of regression curve fitting of experimental data showed that the relation between drape coefficient of fabric and its revolving speed could be expressed by negative exponential equation. Meanwhile, the difference of drape coefficients between static and dynamic at 100 ～ 150r.p.m was suggested to be one of the expressing parameters of the lively degree of fabric dynamic drape.展开更多
On the basis of our previous research work, an expressing index was proposed for the lively degree of dynamic fabric drape. Meanwhile, the main factor analysis for parameters of fabric drape was applied and the 5 main...On the basis of our previous research work, an expressing index was proposed for the lively degree of dynamic fabric drape. Meanwhile, the main factor analysis for parameters of fabric drape was applied and the 5 main factors, comprehensive indexes of expressing aesthetics of fabric drape, were obtained. Through the scored diagrams of main factors of fabric drape aesthetics, 100 kinds of fabric samples could be identified and catalogued. A new method was found out for the objective evaluation of aesthetics of fabric drape.展开更多
This paper introduces a new method of measuring the three-dimensional drape shape of fabrics with structural light. First, we apply parallel annular structural light to form light and shade alternating contour stripes...This paper introduces a new method of measuring the three-dimensional drape shape of fabrics with structural light. First, we apply parallel annular structural light to form light and shade alternating contour stripes on the surface of fabrics. We then collect the images of contour stripes using Charge Coupled Device (CCD). Subsequently, we process the images to identify the contour stripes and edges of fabrics, and obtain the fabric contour lines of curved surfaces. Finally, we apply three-dimensional curved surface modeling method based on a network of polar coordinates, and reconstruct the three-dimensional drape shape of fabrics. Experiments show that our method is effective in testing and reconstructing three-dimensional drape shape of fabrics.展开更多
An instrument is developed to measure the dynamic andstatic fabric drapability by the technology of image analy-sis. A set of stepper motor speed - regulation system,which is based on the control of single - chip micr...An instrument is developed to measure the dynamic andstatic fabric drapability by the technology of image analy-sis. A set of stepper motor speed - regulation system,which is based on the control of single - chip microproces-sor and microcomputer, is developed to form the dynamictest environment in order to implement the measurementof dynamic drapability. An algorithm is presented to con-vert the original draped images which are captured by adigital camera into binary images. The test results showthat the algorithm is adapted for all kinds of fabrics. Thewhole measurement process is controlled by a展开更多
·AIM: To introduce a new technique for iridoschisis management during phacoemulsification: “capsule drape wrap”.·METHODS: “Capsule drape wrap” technique was used for an 80-year-old man with idiopathic ir...·AIM: To introduce a new technique for iridoschisis management during phacoemulsification: “capsule drape wrap”.·METHODS: “Capsule drape wrap” technique was used for an 80-year-old man with idiopathic iridoschisis in the right eye during phacoemulsification. The inserted flexible nylon iris hooks to hold anterior capsule in place, the margin of the anterior capsule could act as drape wrap, tracking the fibrillary iris strands firmly from free floating and stabilizing the capsular bags simultaneously. ·RESULTS: The eye with iridoschisis was successfully treated. Iris fibrils remained immobile during the procedure, and despite the severity of iridoschisis, there were no intraoperative complications such as tear of the iris, hyphema, iris prolapse, loss of mydriasis, or rupture of the posterior lens capsule during phacoemulsification. The bestcorrected visual acuity was increased by 0.1(log MAR) 6mo after the surgery.·CONCLUSION: “Capsule drape wrap” for iridoschisis is easily manageable, prevents further disruption to the loose iris fibers and ensures the stability of capsule–iris complex simultaneously, consequently minimizing the risk of surgical complications in phacoemulsification.展开更多
The draping behavior of fabric is simulated by using four node quadrilateral thin plate elements with finite rotation. The finite element formulation is based on the total Lagrangian approach. An exact representatio...The draping behavior of fabric is simulated by using four node quadrilateral thin plate elements with finite rotation. The finite element formulation is based on the total Lagrangian approach. An exact representation of finite rotation is introduced. The strain energy function accounting for the material symmetry is obtained by the tensor representation theory. To avoid shear locking, the assumed strain technique for transverse shear is adopted. The conjugate gradient method with a proposed line search algorithm is employed to minimize energy and reach the final shape of fabric. The draping behavior of a rectangular piece of fabric over a rectangular table is simulated. (Author abstract) 9 Refs.展开更多
目的探讨无菌治疗巾包裹在骨关节置换术中的应用对患者手术备皮区域皮肤菌落数和术后切口愈合等级的影响。方法前瞻性选取2023年2月—2024年12月期间符合纳入标准的拟行骨关节置换手术的患者,随机分为两组,实验组术前两小时安尔碘皮肤...目的探讨无菌治疗巾包裹在骨关节置换术中的应用对患者手术备皮区域皮肤菌落数和术后切口愈合等级的影响。方法前瞻性选取2023年2月—2024年12月期间符合纳入标准的拟行骨关节置换手术的患者,随机分为两组,实验组术前两小时安尔碘皮肤消毒后不使用无菌治疗巾包裹,只更换干净病号服,等待手术对照组术前两小时备皮安尔碘皮肤消毒后使用无菌治疗巾包裹并更换干净病号服,等待手术。使用Mann-Whitney U test(U-test)检验两组细菌培养结果、切口愈合等级指标的统计学差异。使用卡方检验(χ^(2)-test)对比两组别患者满意度。结果实验组和对照组共纳入142例患者。实验组和对照组的患者临床资料、手术方式、麻醉方式均无统计学意义(P>0.05);实验组的不使用无菌巾包裹与对照组细菌培养结果、手术切口愈合等级指标均无统计学差异(P>0.05)。结论不使用无菌巾患者在皮肤菌落数检测、术后切口愈合等级与使用无菌巾患者无统计学差别,并且不使用无菌巾包裹不仅降低了护士工作量,还能提高患者满意度。展开更多
文摘The performance of image-analysis-based drape tester is studied by analyzing the testing results. The accelerating and decelerating method is used to make the initial testing condition same before draping. A feature vector is proposed to describe the drapenbility of fabrics comprehensively. Moreover, the exponential relationship curves between drape coefficient and rotating speed are obtained from the drape tester to describe the dynamic drapeability Finally, the stability of tested results of image-analysis-based system is studied.
文摘Based on the tests of eight kinds of typical fabrics, the relation between the drape coefficient of different fabrics and its revolving speed was analyzed and discussed. The result of regression curve fitting of experimental data showed that the relation between drape coefficient of fabric and its revolving speed could be expressed by negative exponential equation. Meanwhile, the difference of drape coefficients between static and dynamic at 100 ～ 150r.p.m was suggested to be one of the expressing parameters of the lively degree of fabric dynamic drape.
文摘On the basis of our previous research work, an expressing index was proposed for the lively degree of dynamic fabric drape. Meanwhile, the main factor analysis for parameters of fabric drape was applied and the 5 main factors, comprehensive indexes of expressing aesthetics of fabric drape, were obtained. Through the scored diagrams of main factors of fabric drape aesthetics, 100 kinds of fabric samples could be identified and catalogued. A new method was found out for the objective evaluation of aesthetics of fabric drape.
基金National Natural Science Foundation of China (50275139) Natural Science Foundation of Zhejiang (01388-G)
文摘This paper introduces a new method of measuring the three-dimensional drape shape of fabrics with structural light. First, we apply parallel annular structural light to form light and shade alternating contour stripes on the surface of fabrics. We then collect the images of contour stripes using Charge Coupled Device (CCD). Subsequently, we process the images to identify the contour stripes and edges of fabrics, and obtain the fabric contour lines of curved surfaces. Finally, we apply three-dimensional curved surface modeling method based on a network of polar coordinates, and reconstruct the three-dimensional drape shape of fabrics. Experiments show that our method is effective in testing and reconstructing three-dimensional drape shape of fabrics.
文摘An instrument is developed to measure the dynamic andstatic fabric drapability by the technology of image analy-sis. A set of stepper motor speed - regulation system,which is based on the control of single - chip microproces-sor and microcomputer, is developed to form the dynamictest environment in order to implement the measurementof dynamic drapability. An algorithm is presented to con-vert the original draped images which are captured by adigital camera into binary images. The test results showthat the algorithm is adapted for all kinds of fabrics. Thewhole measurement process is controlled by a
基金Supported by the National Key R&D Program of China (No.2020YFC2008202)the National Natural Science Foundation of China (No.81970813)+1 种基金the Natural Science Foundation of Guangdong Province (No.2023A1515011198)Guangzhou Municipal Science and Technology Project (No.SL2022A03J00553)。
文摘·AIM: To introduce a new technique for iridoschisis management during phacoemulsification: “capsule drape wrap”.·METHODS: “Capsule drape wrap” technique was used for an 80-year-old man with idiopathic iridoschisis in the right eye during phacoemulsification. The inserted flexible nylon iris hooks to hold anterior capsule in place, the margin of the anterior capsule could act as drape wrap, tracking the fibrillary iris strands firmly from free floating and stabilizing the capsular bags simultaneously. ·RESULTS: The eye with iridoschisis was successfully treated. Iris fibrils remained immobile during the procedure, and despite the severity of iridoschisis, there were no intraoperative complications such as tear of the iris, hyphema, iris prolapse, loss of mydriasis, or rupture of the posterior lens capsule during phacoemulsification. The bestcorrected visual acuity was increased by 0.1(log MAR) 6mo after the surgery.·CONCLUSION: “Capsule drape wrap” for iridoschisis is easily manageable, prevents further disruption to the loose iris fibers and ensures the stability of capsule–iris complex simultaneously, consequently minimizing the risk of surgical complications in phacoemulsification.
文摘The draping behavior of fabric is simulated by using four node quadrilateral thin plate elements with finite rotation. The finite element formulation is based on the total Lagrangian approach. An exact representation of finite rotation is introduced. The strain energy function accounting for the material symmetry is obtained by the tensor representation theory. To avoid shear locking, the assumed strain technique for transverse shear is adopted. The conjugate gradient method with a proposed line search algorithm is employed to minimize energy and reach the final shape of fabric. The draping behavior of a rectangular piece of fabric over a rectangular table is simulated. (Author abstract) 9 Refs.
文摘目的探讨无菌治疗巾包裹在骨关节置换术中的应用对患者手术备皮区域皮肤菌落数和术后切口愈合等级的影响。方法前瞻性选取2023年2月—2024年12月期间符合纳入标准的拟行骨关节置换手术的患者,随机分为两组,实验组术前两小时安尔碘皮肤消毒后不使用无菌治疗巾包裹,只更换干净病号服,等待手术对照组术前两小时备皮安尔碘皮肤消毒后使用无菌治疗巾包裹并更换干净病号服,等待手术。使用Mann-Whitney U test(U-test)检验两组细菌培养结果、切口愈合等级指标的统计学差异。使用卡方检验(χ^(2)-test)对比两组别患者满意度。结果实验组和对照组共纳入142例患者。实验组和对照组的患者临床资料、手术方式、麻醉方式均无统计学意义(P>0.05);实验组的不使用无菌巾包裹与对照组细菌培养结果、手术切口愈合等级指标均无统计学差异(P>0.05)。结论不使用无菌巾患者在皮肤菌落数检测、术后切口愈合等级与使用无菌巾患者无统计学差别,并且不使用无菌巾包裹不仅降低了护士工作量,还能提高患者满意度。
