Carpet Loom Research Articles

A nonlinear noise active control algorithm based on deep neural network

To solve the problem that the traditional filter-x least mean square (FxLMS) algorithm and the correlation variable step FxLMS algorithms cannot handle nonlinear interference, a nonlinear noise active control algorithm based on deep neural network (DNN) is proposed. First, nonlinear interference between the acoustic channel and the secondary loudspeaker is introduced into the active noise control system. Second, the training objectives and loss functions of the deep neural network are set, and the network parameters are trained. Finally, a simulation of the active noise control in the local workspace of a tufted carpet loom is carried out to verify the performance of the DNN algorithm. The results show that the DNN algorithm is effective in dealing with nonlinear disturbances.

A carpet loom and matters of inequality: an agential realist approach to deindustrialisation and schooling in the City of Geelong, Australia

This paper brings Barad’s agential realism into relation with educational ethnographic work, and longstanding concerns with matters of inequality. We extend previous work that foregrounds time and space in particular places, and that resists approaches to inequality that generalise about ‘best practices’ for schools in communities facing challenging circumstances. An Axminster Jacquard carpet loom—located in a particular place, the City of Geelong—becomes a specific point of entry to a discussion of agential realism, ethnography and inequality. This carpet loom was once a key machine in a thriving Geelong carpet factory employing families intergenerationally; it is now a demonstration machine in the Geelong National Wool Museum, operated by skilled carpet weavers (now employed as demonstrators) formerly employed at the (now closed) factory. We read questions of deindustrialisation and schooling through the carpet loom as apparatus, working with the questions that it materialises about educational research, ethnography and inequalities.

TÜRKMEN HALILARINDAN ÖĞRENDİKLERİMİZ

Despite an ever-increasing interest in Turkmen carpets in the West, little information was available about them until recently. Most studies are about the aesthetic and technical aspects of the carpets and rugs. This article looks at these carpets from a linguistic point of view. Initially, the article deals with the etymology of the word halı meaning ‘carpet’ which has been the subject of an ongoing dispute between Turkic and Iranian carpet experts who are not linguists. While studying the Turkmen verb yügürt- meaning ‘to begin weaving’ in carpet terminology, we found the root of the word yurt originally meaning ‘abandoned tent site’ in the word used as yügürt > yüwürt in Turkmen dialects. This term also helped us find the root of the archaic Türkic word yurç meaning ‘the husband’s brother’. For getting married or tying the knot in some Turkic languages the term nikah kıymak ( nikah kəsmək) is used. Nikah is an Arabic word meaning ‘marriage’ and Turkic words kıymak and kəsmək mean ‘to cut, to slice’. No one has ever paid attention to this anomaly about nikah being cut. The equivalent of nikah in Old Turkish is tügün which means ‘knot’. Therefore, to get married in Old Turkish is to cut the knot. The fact that the act of cutting the knot is related to carpet weaving, could be observed in Turkmen marriage rituals; when a mullah is conducting the marriage ceremony, a woman constantly opens and closes a pair of scısors as if cutting a knot. The most important pattern of the Turkmen rugs and carpets is called gȫl meaning ‘lake’. Every Turkmen tribe has its own gȫl. This pattern is related to the yir sub ‘earth and water’ cult of Shamanism. The concept of earth in Shamanism is expressed by the mountain that is regarded as a sacred place. Animals that live in the mountains are thought to be awliyas or saints. For example, the mountain ram called Konurbaş is an awliya and it bears the name of a mode in Turkmen folk music called konurbaş mukamı. In Turkmen carpets mountain is used as a pattern in the form of an Old Turkish runic letter t/ta. For the pattern of home which is also a sacred place, the letter b/eb is used. In the Turkmen Sahra region of northern Iran, at the foot of the mountain called Gökçe Dağ, near the historic graveyard of Halid Nabi, there were watermelon-shaped tombstones with symbols on them. These symbols are similar to some of the patterns seen on the Turkmen carpets. Many carpet experts have written about the relationship between carpet and music, but no one has reached a concrete conclusıon. This article proves that the name of the carpet in the oldest Turkic texts had derived from the word kopuz, the oldest musical instrument of the Turkic peoples. The Turkmen carpet loom, like a stringed musical instrument has a bridge and a stick functions as a peg by keeping the weft tight. The weft resembles strings of a musical instrument and in Persian it is called tār, a word that is noticed in the names of musical instruments like dutār, a two-stringed musical instrument and sitār a three-stringed instrument. The name of a carpet loom in Turkmen is gurama/ kurama which denotes setting up and tunıng.

Use of better designed hand knotting carpet looms and workplace interventions to improve working conditions of adult carpet weavers and to reduce hazardous child labor in carpet weaving in Pakistan

Children and adults involved in carpet weaving are prone to a number of health and safety problems. This paper describes initial impact of an ergonomically designed loom and work place modifications, to encourage young and adult workers to weave carpets and reduce the hazardous child labor in carpet weaving in the province of Punjab, Pakistan. A new carpet loom with improved ergonomic and safety features suitable for adult carpet weavers was designed. Model carpet weaving worksites based on the new loom and better work environment were created in 30 villages. The impact of new loom compared with the traditional looms was assessed through structured questionnaires and health examinations after 24 months. Adolescent (15-17 years) and adult (> 17 years) participants included 75 respondents (males 10.7%, n=8; females 89.3%, n=67) operating under the new conditions and 92 respondents (males 12%, n=11; females 88%, n=81) operating under traditional conditions. Results indicated an improvement of health related complaints among those working in the new conditions, most notable were the differences in joint pain (p=0.002) and respiratory health (p=0.02). Improvement of income was also reported by workers at model workplaces. Also, no children below the age of 14 were found to be working at the new looms. The results indicate that individuals who adopted new looms and workplace interventions reported less joint pain and better respiratory health than those working with traditional looms in a traditional work environment. By reducing the risks in the workplace, this ergonomic intervention has the potential to reduce or eliminate hazardous child labor from carpet weaving.

Study on the Intelligent Creel of Advanced Carpet Loom

The detailed design and development of the intelligent creel mechanical structure and control system is based on the research and analysis of specific operation and practical functions, which realizes its functions of intelligent analysis, right amount of supply and prompt storing. As the transmission of the carpet yarns from the storage unit to the loom, the intelligent creel is able to automatically make analysis of the usage amount of different yarns according to different orders, makes more reasonable supplies to the loom and prepares yarns before used up, which makes best use of the yarn and increases the production efficiency. Meanwhile, a lot of time and labor of replacing yarns is saved.

Kinematic analysis and synthesis of the beat‐up mechanism for handmade carpet looms

The beat‐up process has a great influence on the structure and appearance of the handmade carpet. Since all weaving processes of the handmade carpet are performed by the weaver, the production speed may be increased and the performance of the weaver may be improved by designing a suitable beat‐up mechanism. In this article, a crank‐rocker type of four‐bar mechanism has been studied for the handmade carpet loom beat‐up mechanism. First, the functional requirements of the beat‐up mechanism were established according to the problem statement. Later, a four‐bar crank‐rocker‐type mechanism was generated and developed from a slider‐crank‐type mechanism. Here, the dimensional synthesis of the mechanism was made as a solution to the slider‐crank‐type mechanism. Many alternative mechanisms were generated as a result of the dimensional synthesis. The slider‐crank‐type mechanisms were then translated into the crank‐rocker‐type mechanisms. These mechanisms were evaluated in terms of some mechanical criteria and the most suitable one was selected. Finally, a kinematic analysis of the beat‐up mechanism was performed.

On Calderhead's carpet loom

On Calderhead's carpet loom

Calderhead's carpet loom

Calderhead's carpet loom