The paper analyzes the principle of positioning of waves by notching at the bottom of the waves in garment draping from the dynamic perspective, and search for the best molding effect under 45° to fabric grain as...The paper analyzes the principle of positioning of waves by notching at the bottom of the waves in garment draping from the dynamic perspective, and search for the best molding effect under 45° to fabric grain as the model baseline. Wavy and ring deformation laws are proved by the sample photographs.展开更多
A computer-aided design system, which is base on the knowledge of draping and frame-producer methods, is put forward. All kinds of knowledge applied here are abstracted from fashion design, where a complicate object i...A computer-aided design system, which is base on the knowledge of draping and frame-producer methods, is put forward. All kinds of knowledge applied here are abstracted from fashion design, where a complicate object is divided into several simple parts according to the body parts. And then a mathematical model of the display for real fashion illustration is elucidated.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 shape of body and the ease of garment are the important elements in constructing garment style. However, the distribution of ease in garment is uneven and the curves showing different cross-sections of garment sty...The shape of body and the ease of garment are the important elements in constructing garment style. However, the distribution of ease in garment is uneven and the curves showing different cross-sections of garment style with ease are unavailable in the literature. This information is crucial when the three-dimensional garment style is transformed into two-dimensional garment patterns. Thus, several different X-line style garments are produced by 3D draping technology, and the cubic spline is used to fit the cross sectional curves of BL, WL of body and garment. By comparing cross sections of body and garment, the ease at different location can be derived. Besides, garments in 10 different dimensions and quantities of style ease are included in the current study. By numerical operation on discrete ease data at different location, the fitted functions of ease distribution are obtained.展开更多
After run-in analysis of Raschel warp knitting,the dry and wet relaxation treatments of twelvetwo-bar warp knitted fabrics having six different knitting tightnesses were made,and some physi-cal properties of these fab...After run-in analysis of Raschel warp knitting,the dry and wet relaxation treatments of twelvetwo-bar warp knitted fabrics having six different knitting tightnesses were made,and some physi-cal properties of these fabrics which had been finished were tested.On the basis of these experi-ments,the effect of run-in value on dimensional properties and the relationships between run-invalue and physical properties are discussed and analysed.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
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
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
The present paper describes the application of the finite element technique to simulate large fabric deformations in the case of a rectangular cantilever. The fabric is simulated using a degenerated isoparametric curv...The present paper describes the application of the finite element technique to simulate large fabric deformations in the case of a rectangular cantilever. The fabric is simulated using a degenerated isoparametric curved shell element with 8 nodes. The cantilever is considered as a special case of a three dimensional shell structure. The finite element formulation takes into account nonlinear material properties of fabrics. Simulation of woven fabric cantilevers is made and the results are compared with the test results to examine the effectiveness of the finite element approach.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
X oilfield is located in Bohai Sea area, in which G oil formation is a typical drape anticline structure, which is composed of multiple sets of thick sandy conglomerate and multiple sets of argillaceous intercalation....X oilfield is located in Bohai Sea area, in which G oil formation is a typical drape anticline structure, which is composed of multiple sets of thick sandy conglomerate and multiple sets of argillaceous intercalation. From the perspective of development effect, muddy interlayer has a great impact on the oilfield. In this paper, through core identification and well logging identification, the electrical discrimination standard is summarized to identify the interlayer. Through statistics and analysis of the production performance of actual wells, the influence of muddy interlayer on the development performance of oil wells is summarized. This study provides guidance for the development of strong bottom water reservoirs with interlayer.展开更多
基金This work was supported by the Dong Hua University and the corporation foundation
文摘The paper analyzes the principle of positioning of waves by notching at the bottom of the waves in garment draping from the dynamic perspective, and search for the best molding effect under 45° to fabric grain as the model baseline. Wavy and ring deformation laws are proved by the sample photographs.
文摘A computer-aided design system, which is base on the knowledge of draping and frame-producer methods, is put forward. All kinds of knowledge applied here are abstracted from fashion design, where a complicate object is divided into several simple parts according to the body parts. And then a mathematical model of the display for real fashion illustration is elucidated.
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 shape of body and the ease of garment are the important elements in constructing garment style. However, the distribution of ease in garment is uneven and the curves showing different cross-sections of garment style with ease are unavailable in the literature. This information is crucial when the three-dimensional garment style is transformed into two-dimensional garment patterns. Thus, several different X-line style garments are produced by 3D draping technology, and the cubic spline is used to fit the cross sectional curves of BL, WL of body and garment. By comparing cross sections of body and garment, the ease at different location can be derived. Besides, garments in 10 different dimensions and quantities of style ease are included in the current study. By numerical operation on discrete ease data at different location, the fitted functions of ease distribution are obtained.
文摘After run-in analysis of Raschel warp knitting,the dry and wet relaxation treatments of twelvetwo-bar warp knitted fabrics having six different knitting tightnesses were made,and some physi-cal properties of these fabrics which had been finished were tested.On the basis of these experi-ments,the effect of run-in value on dimensional properties and the relationships between run-invalue and physical properties are discussed and analysed.
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.
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The present paper describes the application of the finite element technique to simulate large fabric deformations in the case of a rectangular cantilever. The fabric is simulated using a degenerated isoparametric curved shell element with 8 nodes. The cantilever is considered as a special case of a three dimensional shell structure. The finite element formulation takes into account nonlinear material properties of fabrics. Simulation of woven fabric cantilevers is made and the results are compared with the test results to examine the effectiveness of the finite element approach.
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
文摘X oilfield is located in Bohai Sea area, in which G oil formation is a typical drape anticline structure, which is composed of multiple sets of thick sandy conglomerate and multiple sets of argillaceous intercalation. From the perspective of development effect, muddy interlayer has a great impact on the oilfield. In this paper, through core identification and well logging identification, the electrical discrimination standard is summarized to identify the interlayer. Through statistics and analysis of the production performance of actual wells, the influence of muddy interlayer on the development performance of oil wells is summarized. This study provides guidance for the development of strong bottom water reservoirs with interlayer.
