Types Of Threads Research Articles

The Degradation of Absorbable Surgical Threads in Body Fluids: Insights from Infrared Spectroscopy Studies.

This study investigates the degradation of six different types of absorbable surgical threads commonly used in clinical practice, focusing on their response to exposure to physiological fluids. The threads were subjected to hydrolytic and enzymatic degradation in physiological saline, bile, and pancreatic juice. Our findings demonstrate that bile and pancreatic juice, particularly when contaminated with bacterial strains such as Escherichia coli, Klebsiella spp., and Enterococcus faecalis, significantly accelerate the degradation process. Using Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and tensile strength testing, we observed distinct differences in the chemical structure and mechanical integrity of the sutures. Principal component analysis (PCA) of the FTIR spectra revealed that PDS threads exhibited the highest resistance to degradation, maintaining their mechanical properties for a longer duration compared with Monocryl and Vicryl. These results highlight the critical role of thread selection in gastrointestinal surgeries, where prolonged exposure to bile and pancreatic juice can compromise the suture integrity and lead to postoperative complications. The insights gained from this study will contribute to improving the selection and application of absorbable threads in clinical settings.

Reverse and antegrade vector thread lifting techniques: Correcting nasolabial and marionette lines.

This study evaluates the efficacy of reverse and antegrade thread lifting vectors in conjunction with thread selection for correcting nasolabial folds and marionette lines, aiming to enhance treatment precision and effectiveness. Three female patients aged 43, 48, and 53, presenting with primary concerns regarding nasolabial folds, underwent distinct treatment regimens utilizing various types of threads and vectors. Additionally, video demonstrations were recorded to showcase the procedural techniques employed in each case. The outcomes of the thread lifting procedures demonstrated significant improvements in the correction of the nasolabial fold and marionette line. Innovative thread insertion techniques involve entry points above the zygomatic arch and threading toward the temple hairline for lateral face lifting. These utilize barbs to pull skin and underlying tissues. The reversal technique involves inserting threads in a criss-cross pattern, forming a fibrous structure that may prolong the duration of results. Various thread combinations, considering factors such as composition, thickness, and barb size, provide customized procedures. This research introduces clinical applications, including temple area hairline lifting for nasolabial fold and marionette line correction, reverse vectors targeting nasolabial folds and marionette lines, and antegrade approaches from the lateral side.

Biomechanics of Dental Implantation in the Giant Panda (Ailuropoda melanoleuca): A Comparative Study Using Finite Element Analysis.

Giant pandas have a high incidence of tooth wear, loss, and fracture since their diet is specifically bamboo. Dental implantation is a common treatment for tooth loss in humans while rarely reported in wild animals. To explore the applicability of dental implantation in giant pandas, this study measured mandible parameters of the giant panda, from an adult skeletal specimen. The mandible bone block model was developed using computer-aided design 3D mechanical drawing software. Implants of different radius and thread types of the third premolar tooth (PM3) were assembled and imported into an analysis software system for finite element analysis. As a result, the reverse buttress implant with a radius of 7.5 mm and 8.3 mm, and a length of 15 mm was found to be the most suitable implant for use in the giant panda PM3. This study provides a reference for appropriate clinical giant panda dental implantation, although, the feasibility of giant panda dental implantation needs to be studied further.

Lifecycle of Accident Pathogens: Common Systemic Factors in Construction System Accidents

AbstractConstruction system accidents are accidents due to defects embedded in the constructed systems (e.g., buildings, bridges, and other infrastructures) originating from failures in construction systems, which we can consider as organic and ephemeral temporary multi‐organizations (TMOs). Understanding the mechanisms of such accidents in transient and multi‐organizational systems requires a system‐wide perspective and consideration of the temporary aspect. This paper examines six accident cases using the framed‐and‐layered accident pathogen propagation (FLAPP) model—‐an accident model we specifically developed to capture system‐wide factors and the time dimension—‐and identifies five types of pathogen threads and eight types of thread elements that contribute to the propagation of latent failures and defects, i.e., accident pathogens. With concrete reference to the processes and products found in accident cases, the concept of pathogen thread provides an explicit structure to the classic metaphor of pathogens that the safety literature has been using to describe latent failures. This paper further proposes the concepts of pathogen susceptibility and transmissibility to explain the mechanisms and dynamics that drive the generation and propagation of accident pathogens. Acknowledging the limitations of the modeling framework, this paper concludes with a discussion of lessons for systems engineering practices and directions for future work to ensure system safety in the construction of systems in various domains.

Analyzing and Detecting Information Types of Developer Live Chat Threads

Online chatrooms serve as vital platforms for information exchange among software developers. With multiple developers engaged in rapid communication and diverse conversation topics, the resulting chat messages often manifest complexity and lack structure. To enhance the efficiency of extracting information from chat threads , automatic mining techniques are introduced for thread classification. However, previous approaches still grapple with unsatisfactory classification accuracy due to two primary challenges that they struggle to adequately capture long-distance dependencies within chat threads and address the issue of category imbalance in labeled datasets. To surmount these challenges, we present a topic classification approach for chat information types named EAEChat. Specifically, EAEChat comprises three core components: the text feature encoding component captures contextual text features using a multi-head self-attention mechanism-based text feature encoder, and a siamese network is employed to mitigate overfitting caused by limited data; the data augmentation component expands a small number of categories in the training dataset using a technique tailored to developer chat messages, effectively tackling the challenge of imbalanced category distribution; the non-text feature encoding component employs a feature fusion model to integrate deep text features with manually extracted non-text features. Evaluation across three real-world projects demonstrates that EAEChat, respectively, achieves an average precision, recall, and F1-score of 0.653, 0.651, and 0.644, and it marks a significant 7.60% improvement over the state-of-the-art approaches. These findings confirm the effectiveness of our method in proficiently classifying developer chat messages in online chatrooms.

Future Thread: Printing Electronics on Fibers.

This article introduces a methodology to increase the integration density of functional electronic features on fibers/threads/wires through additive deposition of functional materials via printed electronics. It opens the possibility to create a multifunctional intelligent system on a single fiber/thread/wire while combining the advantages of existing approaches, i.e., the scalability of coating techniques and the microfeatures of semiconductor-based fabrication. By directly printing on threads (of diameters ranging from 90 to 1000 μm), micropatterned electronic devices and multifunctional electronic systems could be formed. Contact and noncontact printing methods were utilized to create various shapes from serpentines and meanders to planar coils and interdigitated electrodes, as well as complex multilayer structures for thermal and light actuators, humidity, and temperature sensors. We demonstrate the practicality of the method by integrating a multifunctional thread into a FFP mask for breath monitoring. Printing technologies provide virtually unrestricted choices for the types of threads, materials, and devices used. They are scalable via roll-to-roll processes and offer a resource-efficient way to democratize electronics across textile products.

Resistance and durability of high strength geotextile bags for hydraulic works

There is a need to build hydraulic works for riverside protection in case of flood as well as a mitigation project for high scour in places where rock material is very expensive or does not exist, therefore hard armour rock, rip rap or even concrete are unattractive alternatives. In several countries of the world, geotextile bags of high resistance have been used to achieve a valid and economical alternative. Themes related to stability of structures with bags that are very important have been dimensioned by some researchers, but there is still no information on how to relate the mechanical characteristics of the components of the bags with their manufacturing and also its service behaviour. This research offers details to be able to know the mechanical characteristics of thread types, geotextile and seaming according to the infill material type to be used to have an equivalent of a rock with the use of high resistance geotextile bags. This is also oriented to know its durability before abrasion, impact and UV radiation. Tests carried out in our laboratories are included as well as those carried out by other researchers both oriented to a methodology that provides an appropriate dimensioning of this type of structures. Some experiences where this methodology was used will be also included as well as the appropriate references.

A self-adapting woven net trap based on the evolution mechanism of orb-web topology

The development of structures that can adapt spontaneously to achieve desired functions in complex environments is crucial for new unmanned countermeasures, such as prey capture or net-recovery. Conventional structural optimization methods based on a singular net–like configuration may lead to functional limitations and fail to achieve specific objectives. In this study, we utilized an evolutionary algorithm that incorporated mechanical features and biological corrections to construct spider threads with advanced properties capable of efficient and reliable trapping behavior in arbitrary boundary conditions. We employed distinct thread types in different components, which achieved distinguished stiffness and strength that could not be accomplished by a single kind of thread. By assembling prestress reinforcement threads, we developed an orb-web-like trap that demonstrated effective trapping performance in experiments. The adaptive evolutionary method could be applied to design intelligent intercepting devices suited to particular functions and extreme environments, with wide application prospects in net-recovery system of UAV. Statement of significanceStructures that adapt spontaneously to perform desired functions in difficult environments are crucial for rising unmanned countermeasures. Conventional structural optimization methods based on a singular net–like configuration may lead to functional limitations and fail to achieve specific objectives. We used an evolutionary algorithm that combined mechanical features and biological corrections to create spider threads in arbitrary boundary circumstances in this work. The adaptive evolutionary method could be applied to design intelligent intercepting devices suited to particular functions and extreme environments, with wide application prospects in net-recovery system of UAV.

Advancements in Conductive Cotton Thread-Based Graphene: A New Generation of Flexible, Lightweight, and Cost-Effective Electronic Applications

Conductive threads have emerged as a highly promising platform for the advancement of smart textiles, enabling the integration of conductivity into fabric materials. In this study, we present a novel approach to fabricate highly flexible graphene-based smart threads, which exhibit exceptional electrical properties. Four distinct types of smart threads were meticulously prepared by drop-casting graphene dispersions onto cotton threads, utilizing various solvents. The influence of annealing temperature and the quantity of dispersed graphene on the electrical conductivity of the threads was systematically investigated. Our findings reveal that the electrical conductivity of the threads is significantly influenced by the type of solvent and the annealing temperature, while exhibiting an increasing trend with higher amounts of dispersed graphene. Remarkably, we achieved a maximum electrical conductivity of 2505.68 S cm−1 for a thread prepared with 6 mL of graphene dispersed in ethanol, annealed at a temperature of 78 °C. Furthermore, the fabricated smart threads were successfully employed as replacements for electric cables in a mobile charger and a computer mouse, demonstrating their high efficiency. This work represents a significant advancement in the development of a new generation of smart textiles, offering a simple, cost-effective, and environmentally friendly fabrication method for the production of smart threads.

The strain and sealing design of a portable hydrolysis reactor for hydrogen storage materials

Portable hydrolysis reactors for hydrogen storage material reactions are extremely important for the application of hydrogen energy since hydrolysis is a facile path to provide hydrogen. The strain and sealing components are extremely important for a hydrogen reactor. However, most researchers are focusing on the hydrogen storage materials for hydrolysis instead of the hydrolysis reactors. Herein, the structure of a hydrolysis reactor has been designed based on the strain distribution and sealing efficiency. The stress concentration on the threaded connection part and sealing effects have been analyzed using finite element analysis method. The stress concentration has been effectively reduced by increasing thread turns and wall thickness of thread. The stress concentration was also found to be affected by the thread types. Double sealing connection was adopted, where the sealing performance was found to increase with increase pressure in the reactor. This study provides a feasible design of a portable hydrolysis reactor for solid-state hydrogen storage materials.

Experimental investigation of biostimulatory effects after polydioxanone thread insertion in a pig model.

Polydioxanone (PDO) threads have been widely used to tighten and lift the facial soft tissue. This research aims to determine the collagenation and inflammation changes that occur in the adipose tissue over time when different types of threads are implanted. Three threads types, PDO, poly glycolic-co-lactic acid (PGLA), and nylon, were inserted in the subcutaneous fat of 12-month-old Bama miniature pigs. Collagen production and inflammatory response were evaluated by hematoxylin and eosin and Masson trichrome staining at 1, 4, 12, 24, and 48 weeks. The integrity of the PDO thread lasted up to 24 weeks with mild inflammation and collagen production. The PGLA thread integrity lasted until 12 weeks and had a strong inflammatory response. The nylon thread's integrity was maintained for 48 weeks and showed minor inflammation and collagen production. Our data suggest that PDO thread is the best choice for clinicians, as it has a mild action process with minimal irritation, moderate collagen production, a reasonable explanation time, with obvious bridging fibrous tissue, and thickening action for the superficial fascia.

Microbial Fuel Cell Biosensor with Capillary Carbon Source Delivery for Real-Time Toxicity Detection.

A microbial fuel cell (MFC) biosensor with an anode as a sensing element is often unreliable at low or significantly fluctuating organic matter concentrations. To remove this limitation, this work demonstrates capillary action-aided carbon source delivery to an anode-sensing MFC biosensor for use in carbon-depleted environments, e.g., potable water. First, different carbon source delivery configurations using several thread types, silk, nylon, cotton, and polyester, are evaluated. Silk thread was determined to be the most suitable material for passive delivery of a 40 g L-1 acetate solution. This carbon source delivery system was then incorporated into the design of an MFC biosensor for real-time detection of toxicity spikes in tap water, providing an organic matter concentration of 56 ± 15 mg L-1. The biosensor was subsequently able to detect spikes of toxicants such as chlorine, formaldehyde, mercury, and cyanobacterial microcystins. The 16S sequencing results demonstrated the proliferation of Desulfatirhabdium (10.7% of the total population), Pelobacter (10.3%), and Geobacter (10.2%) genera. Overall, this work shows that the proposed approach can be used to achieve real-time toxicant detection by MFC biosensors in carbon-depleted environments.

Design of double-shoulder threaded joints of drilling string elements

Purpose. Development of a method for simulating the screwing torque/moment and researching the design of double-shoulder threaded joints while preserving their geometric parameters. Determination of the optimal length of the additional shoulder pin part for the developed drill collar (DC) of NC50, NC55 type of various standard sizes. Establishing the dependence between the pin part length of the additional shoulder and other geometric parameters of the double-shoulder joint of the DC for further use when developing other standard sizes of similar design threads. Methodology. The development of design and the method for simulating the screwing torque of double-shoulder threaded joints was carried out using the finite element method and parametric modeling. Finding. A method for simulating the screwing torque of threaded joints was proposed and developed, which made it possible to improve the model of their automated design. The optimal lengths of the pin part of the additional shoulder of the developed design of double-shoulder threads of the NC50, NC55 types were determined. For planning threaded joints of similar design with the above-mentioned types of threads, a dimensionless coefficient was derived and its value was calculated. A nomogram was built to determine the length of the joint additional shoulder pin part due to the value of this coefficient. Originality. The model of automated design for double-shoulder threaded joints of drill string parts has been improved. This model preserves their geometric parameters and enables modeling a wide range of standard sizes of similar joints. Practical value. The optimal geometric parameters of the developed structures of double-shoulder threaded joints of the drill string elements were determined. A nomogram was built to determine the length of the additional shoulder pin part of the joint by the value of the dimensionless coefficient.

Oral Region Myomodulation and Skin Rejuvenation With Polydioxanone Threads and Hyaluronic Acid Filler: Cross-Filler Technique

The facial aging process is progressive, and rejuvenation of the oral region is challenging, as the skin alterations also reflect the changes in the fat, muscles, ligaments, and bone. Therefore, the procedures for improving this region must be combined to optimize the result. The use of polydioxanone (PDO) threads has been increasing in cosmetic dermatology in the last few years. Different types of threads, barbed, molded, non-barbed, straight, screwed, filler, etc., are available in the market bringing new options for treatment. Here, we want to present a new technique using a particular type of PDO thread, called solid filler thread, which was developed to fill folds in the face, replacing hyaluronic acid (HA) gel in some cases. Based on its purpose, it could also act as HA filler for myomodulation with the advantage of not promoting volume next to modiolus. In our technique, we associated HA filler gel in the areas where volume was desired, such as lips and mental area. We will report some cases to illustrate our technique and show the improvement in static and dynamic wrinkles, restructuring the oral region.

Cadaveric Study of Thread Carpal Tunnel Release Using Newly Developed Thread, With a Histologic Perspective.

To examine the usefulness and feasibility of modified thread carpal tunnel release (TCTR) by comparing the results of using pre-existing commercial thread with those of a newly developed thread (Smartwire-01). A total of 17 cadaveric wrists were used in the study. The modified TCTR method was practiced by two different experts. Pre-existing commercial surgical dissecting thread (Loop&ShearTM) was used for five wrists and the newly developed Smartwire-01 was used for twelve wrists. The gross and microanatomy of the specimens were evaluated by a blinded anatomist. Both types of thread were able to cut the TCL similarly. Gross anatomy and histologic findings showed that there was no significant difference between the two types of threads. However, the practitioners felt that it was easier to cut the TCL using the newly-developed thread. TCTR using Smartwire-01 was as effective as pre-existing Loop&ShearTM, with better user experiences.

Exploring The Impact of Discussion Interfaces on Diversified Interconnectivity in Online Learning Communities

Asynchronous online discussions are widely recognized as potent pedagogical practices for actively involving learners in the process of constructing knowledge and cultivating a thriving learning community. This study examined how the types of online discussion threads (i.e., student-based vs. topic-based) moderate diverse of social interconnection in discussions and how it changes over time. An upward trajectory in the diversification of interconnectivity was discerned. In spite of the shift from student-based to topic-based, students continue valuing the power of diversified interconnecting with their classmates. The significant drop, but transitory, from Week 3 to 4 can be explained by the switch to another discussion type. Both the student-based and topic-based threads were observed to facilitate comparable levels of diverse connectivity. However, they accentuated subtle attributes within the learning communities. Instead of deciding upon any asynchronous online discussion tools given by institution’s LMS, instructors should critically assess different discussion thread interfaces and integrate a relevant one to create and facilitate their ideal and effective, yet diverse learning community. Future research should explore diverse interconnectivity traits and extend the timeframe beyond three weeks to observe the enduring impacts on learning community development.

Comparison of the number of bacterial colonies among four types of suture threads using simple loop method following periodontal surgery in patients with periodontitis: A single-blind randomized clinical trial

Comparison of the number of bacterial colonies among four types of suture threads using simple loop method following periodontal surgery in patients with periodontitis: A single-blind randomized clinical trial

APLIKASI PENENTUAN HARGA SONGKET MENGGUNAKAN METODE EXTREME PROGRAMMING

Sukarara Village is one of the largest traditional weaving centers in Central Lombok which has several songket motifs or ornaments that have their own motifs, so that many Lombok people and people from outside the city and abroad come to see how to make songket weaving. and sizes that are sold in the market of course with prices also vary. Such as prices (3 million, 2 million 500, 1 million and 500 hundred), as well as motifs such as motifs (keker, stork, kerit, orchid, subahanale and others), as is the case with thread types such as (silk, marcis, gold, etc.) , cotton and rayon) as well as sizes such as (2 m long – 110 cm wide, 110 cm long – 190 cm wide and 60 cm long – 2 m wide). With the problem of determining the price of songket, one alternative solution that can be used is to design a songket pricing application system that can help provide solutions to buyers. The Extreme Programming method itself is the most widely used approach to software development. So in this study it is very suitable to use Xp because the nature of the application made is done quickly through the existing stages such as: planning, designing, coding, and testing. thread.

Fabricating lightweight ceramics by spraying clay on knitted structures

This research was carried out to develop a novel composite material consisting of a thread reinforcement and a clay matrix, as well as to develop a method of shaping this material into hollow spatial structures. Ceramic elements in the building industry are currently created by applying extruding, pressing and casting methods. The approach of spraying clay onto predefined knitted meshes increases the usability of digitally fabricated lightweight ceramic elements, while eliminating the need for scaffolding. In this approach, multiple layers of a fluid clay mass are sprayed onto the tensioned mesh using an industrial, six-axis robotic arm. This allows the precise application of the material and results in varying material thicknesses. Due to the complementary qualities of clay which absorbs compressive forces and threads which absorb tensile forces, lightweight structures can be created. The research involved experimenting with clay mixtures, several thread types, knitting methods and spraying techniques, as well as fabricating a 1:1 lightweight module as an architectural prototype.

The Relationship and Development of Joseon Embroidery and Lu-Embroidery of Shandon : Focusing on Embroidered Dwelling by a Mountain Stream at the National Museum of Korea

This study aims to fill the gaps in the history of Korean embroidery by examining Luembroidery of Shandong, an area closely related to the Korean peninsula in history, geography, culture, and custom. Unlike Gu-embroidery of Jiangnan that gained renown in the late Ming dynasty, Lu-embroidery’s relations to Korea could be found from the ancient times, through medieval Yuan to the Qing period, and therefore has significance as historical documents. Needlework in Lu-embroidery style, made or brought to Korea in the late Joseon period represent the literary preferences of the ruling class at the time and also hold diverse information on localized embroidery in Joseon, including Ahn Joo-embroidery, closely associated with Shandong.</br>Kkonsa existed since the ancient times, but was eclipsed in popularity by p’unsa, used in painted embroidery in medieval period in East Asia. It regained dominance again during the Yuan dynasty. In the late Yuan period, Lu-embroidery reached another golden age as Shandong Lu-embroidery employed kkonsa, a type of twisted embroidery thread rather than p’unsa, a type of silk thread, and as new techniques of more diversity and refinedness were developed. Shandong Lu-embroidery is also called uiseonsu, meaning embroidery for clothes, as kkonsa was widely used as being suitable for more sturdy costumes. In Nopakchiplam, it is recorded that new types of embroidery threads were used in Joseon as well. Conclusively, this study compared the Lu embroidery style works at the National Museum of Korea and the works of Ming-Qing period, and examined how kkonsa were used in Joseon. The iconography and style of embroidered Lotus Pond and Waterfowl and narrative figure paintings, and the use of Joseon royal style two-strands Jeonggumsa, royal embroidery, folk embroidery and Ahn Joo-embroidery were all considered for more comprehensive understanding.