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A meta-analysis on the clinical efficacy of fire dragon cupping in the treatment of lumbar disc herniation
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作者 Hai-Xia Ma Dan Ma +1 位作者 Bin Lin Juan-Xia Zheng 《Integrative Medicine Discovery》 2024年第11期1-7,共7页
Background:The incidence of lumbar disc herniation(LDH)is notably high.Consensus among experts highlights non-surgical treatments as the primary therapeutic approach for LDH.Contemporary medicine frequently employs ph... Background:The incidence of lumbar disc herniation(LDH)is notably high.Consensus among experts highlights non-surgical treatments as the primary therapeutic approach for LDH.Contemporary medicine frequently employs pharmacotherapy and epidural injections in such treatments,which are associated with numerous adverse effects.Prolonged use can severely impair the liver and kidney functions of patients.Hence,the role of safe and effective traditional Chinese medicine techniques becomes pivotal.Among various traditional Chinese medicine approaches for treating LDH,fire dragon cupping,renowned for its remarkable efficacy,cost-effectiveness,and ease of application,is extensively utilised in clinical settings for managing LDH.Nonetheless,there is a scarcity of systematic and standardised evidence from evidence-based medicine studies.Therefore,conducting a meta-analysis is imperative.Methods:A comprehensive computerised search was conducted in databases including China National Knowledge Infrastructure,WanFang Data,VIP,China Biology Medicine disc,PubMed,EMbase,The Cochrane Library,Web of Science,and CINAHL.The search aimed to gather randomised controlled trials on fire dragon cupping therapy for LDH,spanning from the inception of these databases until December 2023.Two researchers independently screened the literature according to inclusion and exclusion criteria,extracted data,and assessed the methodological quality of the studies included,utilising RevMan 5.3 software for meta-analysis.Results:The results show that the fire dragon cupping therapy group had better clinical effectiveness(relative risk=1.23,95%confidence interval(CI)(1.14,1.33),P<0.00001),less pain(standardized mean difference=–1.33,95%CI(–1.49,–1.16),P<0.00001),and some improvement in lumbar function(Japanese Orthopaedic Association scores:mean difference=3.37,95%CI(2.31,4.43),P<0.00001.Conclusion:The fire dragon cupping therapy significantly alleviates LDH,warranting its extensive application.However,considering the limitations in the number and quality of studies included,the aforementioned conclusion necessitates further validation through more high-quality research. 展开更多
关键词 fire dragon cupping therapy lumbar disc herniation lumbar spine META-ANALYSIS randomized controlled trial
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Observation on Therapeutic Effect of Lotus Needle Cupping Therapy for Removing Blood Stasis in Zhuang Medicine on PHN and Its Influ-ence on Inflammatory Mediators
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作者 Liping QIN Yulu WEI +4 位作者 Faming SHU Mingfu PAN Zujie QIN Da WEI Jiaojiao HUANG 《Medicinal Plant》 2024年第5期61-65,共5页
[Objectives]To observe the clinical effect of the lotus needle cupping therapy for removing blood stasis in Zhuang medicine in treating PHNand its influence on inflammatory factors.[Methods]96 patients with PHN were r... [Objectives]To observe the clinical effect of the lotus needle cupping therapy for removing blood stasis in Zhuang medicine in treating PHNand its influence on inflammatory factors.[Methods]96 patients with PHN were randomly divided into three groups:lotus nee-dle cupping therapy group,TCM surrounding acupuncture group and gabapentin group.Venous blood and acupoint blood were collected at 0,21 and 42 d of treatment,and the expression levels of 5-HT,SP and CGRPinflammatory mediators were detected before and after treatment.The changes of VAS scores before,during and after treatment and the clinical efficacy were observed.[Results]The total effective rate of the lotus needle cupping group was 87.50%,which was better than that of the TCM acupuncture group(81.25%)and the gabapentin group(62.50%);after treatment,the VAS scores and the expression of inflammatory mediators in the three groups of patients were lower than those before treatment,and the decrease was more significant in the treatment group(P<0.05).[Conclusions]The lotus needle cupping therapy for removing blood stasis in Zhuang medicine is effective in treating PHN,and its mechanism is to reduce the release of inflammatory media-tors,reduce hyperalgesia,relieve pain and improve the quality of life of patients. 展开更多
关键词 Lotus needle cupping therapy for removing blood stasis in Zhuang medicine Postherpetic neuralgia Inflammatory mediator
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Subconjunctival hemorrhage after wet cupping therapy: a case report
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作者 Zainab AlMusleh Ahmad Alrawashdeh Tamer Aboushanab 《Clinical Research Communications》 2024年第2期27-29,共3页
Introduction:Cupping therapy is an integrative and complementary medicine therapy that practiced worldwide by several civilizations for thousands of years.Cupping therapy is reported to be a relatively safe practice e... Introduction:Cupping therapy is an integrative and complementary medicine therapy that practiced worldwide by several civilizations for thousands of years.Cupping therapy is reported to be a relatively safe practice especially if performed by qualified therapists.Subconjunctival hemorrhage(SCH)is a common cause of eye redness and can be classified into traumatic and spontaneous.Case presentation:This case report discussed an adverse event related to wet cupping therapy.The patient developed SCH one day after performing cupping therapy.He was completely recovered after 2 weeks.This case report should increase the knowledge of cupping therapists regarding increasing safety of patient when performing wet cupping therapy on specific body parts especially,head,neck and cervical areas.Furthermore,it highlighted the importance of conducting research regarding the mechanical and physiological effects of cupping therapy.Conclusion:Adverse events related to cupping therapy should be reported with every patient.Cupping therapists should be aware of this possible mild adverse event.To the best of our knowledge,this is the first published adult case of SCH related to wet cupping therapy session.More studies are critically needed for evaluation of cupping therapy effects and adverse events especially when performed on head and neck. 展开更多
关键词 cupping therapy wet cupping Hijama subconjunctival hemorrhage adverse event
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An overview of systematic reviews of clinical evidence for cupping therapy 被引量:3
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作者 Huijuan Cao Mei Han +1 位作者 Xiaoshu Zhu Jianping Liu 《Journal of Traditional Chinese Medical Sciences》 2015年第1期3-10,共8页
Background:As a traditional treatment method,cupping therapy is widely used in Asian countries.This overview of systematic reviews (SRs) investigated the effectiveness and safety of cupping therapy through an evidence... Background:As a traditional treatment method,cupping therapy is widely used in Asian countries.This overview of systematic reviews (SRs) investigated the effectiveness and safety of cupping therapy through an evidence-based approach.Methods:SRs that assessed the effectiveness of cupping therapy for any type of disease were searched through 6 electronic databases.Target diseases,cupping methods,numbers and types of included studies,quality of included trials,main results (including meta-analysis re sults),and authors' conclusions of SRs were extracted.The Assessment of Multiple Systematic Reviews measurement was used to evaluate methodologic quality of the SRs.Results Eight SRs met the inclusion criteria and effectiveness and safety of cupping therapy for 11 diseases were assessed.All included SRs were of good methodologic quality.However,quality of trials included in the SRs was generally poor.Meta-analysis was performed in 4 studies.Results:showed cupping therapy (alone or combined with other interventions) was better than medications (or other interventions alone) for herpes zoster,acne,facial paralysis,low back pain,or cervical spondylosis.One review reported adverse events,including hematoma,increased pain and tingling following cupping treatment.Conclusions:Cupping therapy may be beneficial for pain-related conditions,acne,and facial paralysis.However,a firm conclusion could not be drawn due to the insufficient number of included reviews and the low quality of the original studies. 展开更多
关键词 cupping therapy OVERVIEW systematic review Randomized clinical trials
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Cupping therapy for acute and chronic pain management:a systematic review of randomized clinical trials 被引量:3
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作者 Huijuan Cao Xun Li +3 位作者 Xue Yan Nissi S.Wang Alan Bensoussan Jianping Liu 《Journal of Traditional Chinese Medical Sciences》 2014年第1期49-61,共13页
Objective:Cupping as a traditional therapy is used to treat a myriad of health conditions,including pain.This systematic review assessed the effectiveness and safety of cupping for different types of pain.Methods:Thir... Objective:Cupping as a traditional therapy is used to treat a myriad of health conditions,including pain.This systematic review assessed the effectiveness and safety of cupping for different types of pain.Methods:Thirteen databases and four trial registries were searched for randomized clinical trials.Meta-analysis of data was conducted if there was non-significant clinical and statistical heterogeneity(measured by I2 test)among trials.Results:Sixteen trials with 921 participants were eligible and included.Six trials were assessed as low risk of bias,another six trials were of unclear risk of bias,and the remaining four trials were of high risk of bias.Pain was related to three acute and seven chronic diseases.Metaanalysis showed a beneficial effect of cupping compared to wait-list control(visual analogue scale(VAS),MD1.85 cm,95%CI2.66 to1.04)and heat therapy(numerical rating scale,MD2.05 cm,95%CI2.93 to1.17).Cupping combined with acupuncture was superior to acupuncture alone on post-treatment pain intensity(VAS,MD1.18 cm,95%CI1.68 to0.68),however,no difference was found between this comparison based on changes in pain intensity(difference of VAS,MD 0.16 cm,95%CI0.54 to 0.87).Results from other single studies showed significant benefit of cupping compared with conventional drugs or usual care.Hematoma and pain at the treated site,increasing local pain or tingling were reported as mild adverse effects of cupping.Conclusion:This review suggests a potential positive short-term effect of cupping therapy on reducing pain intensity compared with no treatment,heat therapy,usual care,or conventional drugs. 展开更多
关键词 cupping therapy PAIN systematic review
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Bloodletting Cupping Therapy for postherpetic neuralgia:a systematic review and meta-analysis 被引量:1
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作者 Qian Cui Yu-Hui Ma +2 位作者 Xiao-Ming Jin Lin-Feng Li Guo-Wei Zhang 《Medical Data Mining》 2018年第2期57-67,共11页
Objective:To evaluate the clinical effects of bloodletting cupping therapy(BCT)for patients with postherpetic neuralgia.Methods:We comprehensively searched four Chinese databases(Wanfang,China National Knowledge Infra... Objective:To evaluate the clinical effects of bloodletting cupping therapy(BCT)for patients with postherpetic neuralgia.Methods:We comprehensively searched four Chinese databases(Wanfang,China National Knowledge Infrastructure,VIP Database for Chinese Technical Periodicals,China Biology Medicine disc)and foreign databases(Pubmed,Cochrane Library).The retrieval time was from the build-up time to May 2018.RevMan 5.3 software was used for statistical analysis.Results:We finally obtained 18 eligible studies.Compared with routine western medicine,BCT can significantly improve PHN(OR=7.45,95%CI,3.36-16.51,Z=4.95,P<0.01).BCT plus other methods of acupuncture with fire needle and filiform needle has significant therapeutic effect(OR=5.54,95%CI,3.01-10.19,P<0.01),BCT plus routine western medicine has significant therapeutic effect(OR=4.99,95%CI,2.73-9.11,P<0.00001).Conclusion:It showed that the therapeutic effects of BCT,BCT plus other acupuncture methods with fire needle and filiform needle,and BCT combined with western medicine are better than those treated with single western medicine.It is effective to treat postherpetic neuralgia with Bloodletting Cupping Therapy. 展开更多
关键词 BLOODLETTING cupping THERAPY Postherpetic NEURALGIA system evaluation ACUPUNCTURE
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Efficacy of blood-letting puncture and cupping in the treatment of periarthritis of shoulder:a systematic review
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作者 Li-Hui Zhang Li-Xin Wang +1 位作者 Qian Cui Guo-Wei Zhang 《TMR Integrative Medicine》 2018年第4期175-191,共17页
Objective:To systematically evaluate the clinical efficacy and safety of blood-letting puncture and cupping in the treatment of periarthritis of shoulder.Methods:We electronically searched databases including CNKI,VIP... Objective:To systematically evaluate the clinical efficacy and safety of blood-letting puncture and cupping in the treatment of periarthritis of shoulder.Methods:We electronically searched databases including CNKI,VIP,PubMed,WanFang Data,EMbase Cochrane Library and to collect randomized controlled trials(RCTs)and quasi-randomized controlled trials about blood-letting puncture and cupping for periarthritis of shoulder and evaluated the quality of the documents collected by the Cochrane collaboration,provided by Review Manager 5 software for statistical analysis.Then the quality of the included trials was assessed using the Jadad scale and GRADE system was used to score the quality and grade recommendation.Results:Thirty RCTs involving 2556 patients were included.The results of meta-analysis showed that:Total effective rate OR=6.21[OR=6.21,95%CI(4.69,8.21),P<0.001].The results of GRADE system evaluation showed that the level of evidence was B,and the recommendation level was weak recommendation.Conclusion:Blood-letting puncture and cupping shows better effects than other treatments and preferably security in the treatment of periarthritis of shoulder.We do not find any serious adverse reaction reports.Due to limited quality of the included studies,more high quality studies are needed to verify the above conclusion. 展开更多
关键词 Traditional Chinese Medicine Blood-letting Puncture and cupping Periarthritis of shoulder META-ANALYSIS systematic review GRADE system
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Systematic evaluation and Meta-analysis of acupuncture and collaterals cupping therapy for Knee Osteoarthritis
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作者 Li-Hui Zhang Yong-Chen Zhao 《TMR Modern Herbal Medicine》 2019年第1期36-47,共12页
Objective:In order to obtain the best treatment program for Knee Osteoarthritis(KOA),to alleviate the pain of patients with KOA,and to systematically evaluate the efficacy of acupuncture cupping therapy for KOA.Method... Objective:In order to obtain the best treatment program for Knee Osteoarthritis(KOA),to alleviate the pain of patients with KOA,and to systematically evaluate the efficacy of acupuncture cupping therapy for KOA.Methods:we used computer to search the databases of CNKI(1989-2018.10),Wanfang(1989-2018.10),VIP(1989-2018.10),PubMed(1966-2018.10),EMbase(1986-2018.10)and Cochrane Library(the 3rd issue of 2018).And the literature quality was evaluated by Jadad scale.Results:A total of 19 eligible RCT studies were included,and a total of 2,088 patients participated in the eligible clinical study.Meta-analysis results showed that the total effective rate OR combination=2.85[OR=3.98,95%CI(2.98,5.32),P<0.00001].The results showed that the curative effect of acupuncture and collaterals cupping in the treatment of KOA was superior to other therapies.Conclusion:Acupuncture and cupping therapy of traditional Chinese medicine is effective and safe in treating KOA.Due to the impact of the original study on Meta-analysis results,more large samples and high-quality clinical trials are still needed to verify. 展开更多
关键词 acupuncture and collaterals cupping therapy Traditional Chinese Medicine Knee Osteoarthritis META-ANALYSIS systematic evaluation
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Technical operation specification for cupping therapy
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作者 Yongchun WEI Yali WANG +2 位作者 Haiyan E Kaiye ZHANG Ling TANG 《Journal of Integrative Nursing》 2023年第2期155-160,共6页
Cupping,as one of the characteristic therapies of traditional Chinese medicine,has been applied for more than 2000 years and has a unique curative effect in clinic.With the evolution of the times,the types and operati... Cupping,as one of the characteristic therapies of traditional Chinese medicine,has been applied for more than 2000 years and has a unique curative effect in clinic.With the evolution of the times,the types and operation techniques of cupping method are also iterating.In the process of its inheritance and development,cupping technology is also known by more and more people.Starting from the development and efficacy of cupping method,this paper introduces the clinical operation steps and precautions of cupping method in detail,and lists the representative diseases such as lumbar muscle strain,herpes zoster,and ankylosing spondylitis,to provide reference for clinical application. 展开更多
关键词 cupping nursing technology operating procedures traditional Chinese medicine
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Technical operation specification for pricking-cupping therapy
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作者 Jiaji LI Jingjin XU +3 位作者 Jing ZHANG Ling TANG Hong CHEN Ye LI 《Journal of Integrative Nursing》 2023年第3期223-227,共5页
Pricking-cupping therapy is a Traditional Chinese Medicine(TCM)nursing technology that can adjust the viscera of the human body,make the meridians smooth,and Yin and Yang balanced mainly by means of relieving heat and... Pricking-cupping therapy is a Traditional Chinese Medicine(TCM)nursing technology that can adjust the viscera of the human body,make the meridians smooth,and Yin and Yang balanced mainly by means of relieving heat and detoxification,harmonizing Qi and blood,promoting blood circulation and removing blood stasis,dredging meridians and activating collaterals,reducing swelling and pain,purging heat and calming shock,clearing heat,and opening orifices.Pricking-cupping therapy has a long history and wide application.After thousands of years of development,it has made great progress.They are widely used to treat lumbar disc herniation,herpes zoster,acute arthritis,migraine,and other diseases in China.Through the clinical practice and theoretical exploration of physicians of past dynasties,the therapeutic mechanism and application scope of pricking-cupping therapy have been greatly enriched.Modern TCM practitioners have conducted in-depth researches on the operation norms of the therapy on the basis of the ancients,hoping to grasp the essence of the disease more accurately and make the rational use of the operation technology of the therapy. 展开更多
关键词 Bloodletting puncture cupping external treatment of traditional Chinese medicine operating procedures pricking-cupping therapy Traditional Chinese Medicine nursing technology
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Wet cupping(Al-hijamah)as a strange cause of ear trauma:A case report
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作者 Raid M Al-Ani 《World Journal of Otorhinolaryngology》 2023年第2期30-35,共6页
BACKGROUND Cupping therapy is used across the globe since ancient Egypt.It is used as a complementary or alternative to daily clinical practice.Cupping therapy could be dry or wet(Al-hijamah)type.It is considered a re... BACKGROUND Cupping therapy is used across the globe since ancient Egypt.It is used as a complementary or alternative to daily clinical practice.Cupping therapy could be dry or wet(Al-hijamah)type.It is considered a relatively safe procedure for a variety of clinical problems like lower backache,shoulder pain,neck pain,headache,and migraine.Application of cupping therapy over body orifices is contraindicated.CASE SUMMARY A 27-year-old gentleman presented with sudden left-sided hearing loss and tinnitus for 7 d.He gave a history of upper respiratory tract infection 14 d before his complaints.He received Al-hijamah over his left ear 3 d before seeking advice from the Otolaryngology clinic,but without benefit.Physical examination showed a dull-looking left ear drum,hemotympanum in the posterior part of the tympanic cavity,two blood clots over the eardrum,and multiple bleeding points over the external ear canal and tympanic membrane.A pure tone audiogram and tympanogram confirmed the diagnosis of middle ear effusion.Conservative treatment(avoidance of water entry,antibiotics,and local and systemic decongestants)was given for 5 d.The presenting symptoms as well as ear injuries resolved completely two weeks after the follow-up.CONCLUSION We do not recommend using Al-hijamah directly over the ear as a treatment option for hearing loss to avoid unwanted ear trauma as well as there is no benefit from this kind of treatment. 展开更多
关键词 Al-hijamah Ear trauma Hemotympanum Secretary otitis media cupping therapy Hearing loss Case report
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Genetic Theory:An Illustration of a Theoretical Mechanism of Acton of Cupping Therapy
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作者 Tamer Aboushanab Munir Ravalia 《Medical Theory and Hypothesis》 2023年第1期29-31,共3页
Cupping therapy is an ancient natural therapeutic modality which is widely practiced throughout the world.Cupping therapy mechanisms of action are not illustrated by research until now.This article gives a brief illus... Cupping therapy is an ancient natural therapeutic modality which is widely practiced throughout the world.Cupping therapy mechanisms of action are not illustrated by research until now.This article gives a brief illustration of the genetic theory as a possible mechanism of action of cupping therapy.Genetic modulation is also a suggested mechanism of action of acupuncture and massage. 展开更多
关键词 cupping therapy HYPOXIA mechanism of action ACUPUNCTURE
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高速铁路信号系统网络入侵检测技术研究
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作者 曹峰 林瑜筠 《高速铁路技术》 2024年第5期67-71,82,共6页
入侵检测作为一种网络主动防御技术,能够有效阻止来自黑客的多种手段攻击。随着机器学习的发展,相关技术也开始应用到入侵检测中。本文采用sklearn库中preprocessing模块的函数对KDD CUP 99数据集进行预处理,基于朴素贝叶斯和逻辑回归算... 入侵检测作为一种网络主动防御技术,能够有效阻止来自黑客的多种手段攻击。随着机器学习的发展,相关技术也开始应用到入侵检测中。本文采用sklearn库中preprocessing模块的函数对KDD CUP 99数据集进行预处理,基于朴素贝叶斯和逻辑回归算法,建立了网络入侵检测模型,并利用信息增益算法对入侵相关特征进行选择,然后进行训练与预测。实验结果表明,选择特征子集进行训练和预测能够保证预测准确率并大幅提高检测效率。研究成果可为高速铁路信号系统网络入侵检测模型的设计和建立提供参考。 展开更多
关键词 信号系统 入侵检测 机器学习 KDD CUP 99数据集 朴素贝叶斯 逻辑回归
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Effect of Pre-strain on Microstructure and Stamping Performance of High-strength Low-alloy Steel
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作者 刘坡 WEN Zhicheng +1 位作者 LIU Zheng 许峰 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS CSCD 2024年第3期774-780,共7页
In this study,pre-strain ranging from 0 to 0.12 was applied through uniaxial tension on high-strength low-alloy(HSLA)specimens with four kinds of grain size.Effect of pre-strain and grain size on me-chanical property ... In this study,pre-strain ranging from 0 to 0.12 was applied through uniaxial tension on high-strength low-alloy(HSLA)specimens with four kinds of grain size.Effect of pre-strain and grain size on me-chanical property was investigated through tensile tests.Microstructures of the pre-strained and tensile tested samples were analyzed,respectively.The 30.8°v-bending and following flattening,as well as Erichson cupping tests,were performed on the pre-strained samples.Results show the elongation ratio of grain and dislocation density increases with pre-strain.Yielding platform is removed when pre-strain is larger than 0.06 while yielding plateau period decreases with pre-strain less than 0.06 due to reduction of pinning effect.The 30.8°v-bending and the following flattening tests are successfully accomplished on all the pre-strained samples with different grain size.Decrease in grain size,along with increase in pre-strain,causes increase in strength and decrease in elongation rate as well as cupping value.Pre-strain causes very slight effect on bending ability,much less than that on mechanical property and cupping test value.Reciprocal impact of the pre-strain and grain size on HSLA steel deformability is inconspicuous. 展开更多
关键词 strain hardening DISLOCATION TEXTURE BENDING erichson cupping test
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Refined Anam-Net:Lightweight Deep Learning Model for Improved Segmentation Performance of Optic Cup and Disc for Glaucoma Diagnosis
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作者 Khursheed Aurangzeb Syed Irtaza Haider Musaed Alhussein 《Computers, Materials & Continua》 SCIE EI 2024年第7期1381-1405,共25页
In this work,we aim to introduce some modifications to the Anam-Net deep neural network(DNN)model for segmenting optic cup(OC)and optic disc(OD)in retinal fundus images to estimate the cup-to-disc ratio(CDR).The CDR i... In this work,we aim to introduce some modifications to the Anam-Net deep neural network(DNN)model for segmenting optic cup(OC)and optic disc(OD)in retinal fundus images to estimate the cup-to-disc ratio(CDR).The CDR is a reliable measure for the early diagnosis of Glaucoma.In this study,we developed a lightweight DNN model for OC and OD segmentation in retinal fundus images.Our DNN model is based on modifications to Anam-Net,incorporating an anamorphic depth embedding block.To reduce computational complexity,we employ a fixed filter size for all convolution layers in the encoder and decoder stages as the network deepens.This modification significantly reduces the number of trainable parameters,making the model lightweight and suitable for resource-constrained applications.We evaluate the performance of the developed model using two publicly available retinal image databases,namely RIM-ONE and Drishti-GS.The results demonstrate promising OC segmentation performance across most standard evaluation metrics while achieving analogous results for OD segmentation.We used two retinal fundus image databases named RIM-ONE and Drishti-GS that contained 159 images and 101 retinal images,respectively.For OD segmentation using the RIM-ONE we obtain an f1-score(F1),Jaccard coefficient(JC),and overlapping error(OE)of 0.950,0.9219,and 0.0781,respectively.Similarly,for OC segmentation using the same databases,we achieve scores of 0.8481(F1),0.7428(JC),and 0.2572(OE).Based on these experimental results and the significantly lower number of trainable parameters,we conclude that the developed model is highly suitable for the early diagnosis of glaucoma by accurately estimating the CDR. 展开更多
关键词 Refined Anam-Net parameter tuning deep learning optic cup optic disc cup-to-disc ratio glaucoma diagnosis
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Study of plasma parameters of coaxial plasma source using triple Langmuir probe and Faraday cup diagnostics
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作者 Sunil KANCHI Rohit SHUKLA Archana SHARMA 《Plasma Science and Technology》 SCIE EI CAS CSCD 2024年第4期94-100,共7页
Coaxial plasma guns are a type of plasma source that produces plasma which propagates radially and axially controlled by the shape of the ground electrode, which has attracted much interest in several applications. In... Coaxial plasma guns are a type of plasma source that produces plasma which propagates radially and axially controlled by the shape of the ground electrode, which has attracted much interest in several applications. In this work, a 120° opening angle of CPG nozzle is used as a plasma gun configuration that operates at the energy of 150 J. The ionization of polyethylene insulator between the electrodes of the gun produces a cloud of hydrogen and carbon plasma.The triple Langmuir probe and Faraday cup are used to measure plasma density and plasma temperature. These methods are used to measure the on-axis and off-axis plasma divergence of the coaxial plasma gun. The peak values of ion densities measured at a distance of 25 mm on-axis from the plasma gun are(1.6±0.5)×10^(19)m^(-3)and(2.8±0.6)×10^(19)m^(-3)for hydrogen and carbon plasma respectively and the peak temperature is 3.02±0.5 eV. The mean propagation velocity of plasma is calculated using the transit times of plasma at different distances from the plasma gun and is found to be 4.54±0.25 cm/μs and 1.81±0.18 cm/μs for hydrogen and carbon plasma respectively. The Debye radius is obtained from the measured experimental data that satisfies the thin sheath approximation. The shot-to-shot stability of plasma parameters facilitates the use of plasma guns in laboratory experiments. These types of plasma sources can be used in many applications like plasma opening switches, plasma devices, and as plasma sources. 展开更多
关键词 coaxial plasma source triple Langmuir probe Faraday cup plasma density plasma temperature
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Mid-term clinical outcomes of the uncemented Robert Mathys pressfit cup
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作者 Kishan Ritek Ramsodit Inger N Sierevelt +2 位作者 Esther R C Janssen Sjoerd Kaarsemaker Daniël Haverkamp 《World Journal of Clinical Cases》 SCIE 2024年第19期3684-3691,共8页
BACKGROUND The use of uncemented cups during total hip arthroplasty(THA)has gained popularity in recent years.The Robert Mathys(RM)pressfit cup,an uncemented monoblock implant is expected to preserve bone density due ... BACKGROUND The use of uncemented cups during total hip arthroplasty(THA)has gained popularity in recent years.The Robert Mathys(RM)pressfit cup,an uncemented monoblock implant is expected to preserve bone density due to its composition and external surface,while reducing backside wear with its monoblock construction.These factors should lead to a high survival rate of the implant.AIM To evaluate the mid-term survival and functional outcome of the RM Pressfit cup in a large study population.METHODS Between 2011 and 2020,we included 1324 patients receiving a primary THA using the RM pressfit cup.Final clinical follow-up was performed at 2 years postoperatively with the Dutch arthroplasty register used to assess implant status thereafter.Revision for acetabular failure and reason for revision were reported to evaluate implant survival,while the hip disability and osteoarthritis outcome score(HOOS)scores were used to assess functional outcome.RESULTS The mean age at surgery was 64.9 years.The mean follow-up was 4.6 years.Of the 1324 THAs performed,13 needed cup revisions within 5 years after index THA:5 due to aseptic loosening,6 due to infection,2 due to dislocation and 2 due to other causes.This resulted in a 5-year cup survival of 98.8%(95%CI:98.1-99.5).Nine of the cup revisions occurred within the first year after index THA.HOOS scores increased significantly in all domains during the first year and levelled out during the second year.CONCLUSION In the present study,the RM pressfit cup demonstrated excellent clinical outcomes at mid-term follow-up;however,future studies are needed to assess the long-term outcomes of this acetabular implant. 展开更多
关键词 Total hip arthroplasty Uncemented RM pressfit cup Hip osteoarthritis Cup revision Pressfit Aseptic loosening
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Two-dimensional investigation of characteristic parameters and their gradients for the self-generated electric and magnetic fields of laser-induced zirconium plasma
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作者 Tayyaba SAJID Shazia BASHIR +2 位作者 Mahreen AKRAM Maira RAZZAQ Khaliq MAHMOOD 《Plasma Science and Technology》 SCIE EI CAS CSCD 2024年第5期138-155,共18页
Two-dimensional diagnosis of laser-induced zirconium(Zr)plasma has been experimentally performed using the time-of-flight method by employing Faraday cups in addition to electric and magnetic probes.The characteristic... Two-dimensional diagnosis of laser-induced zirconium(Zr)plasma has been experimentally performed using the time-of-flight method by employing Faraday cups in addition to electric and magnetic probes.The characteristic parameters of laser-induced Zr plasma have been evaluated as a function of different laser irradiances ranging from 4.5 to 11.7 GW cm-2 at different axial positions of 1–4 cm with a fixed radial distance of 2 cm.A well-supporting correlation between the plume parameters and the laser-plasma-produced spontaneous electric and magnetic(E and B)fields was established.The measurements of the characteristic parameters and spontaneously induced fields were observed to have an increasing trend with the increasing laser irradiance.However,when increasing the spatial distance in both the axial and radial directions,the plasma parameters(electron/ion number density,temperature and kinetic energy)did not show either continuously increasing or decreasing trends due to various kinetic and dynamic processes during the spatial evolution of the plume.However,the E and B fields were observed to be always diffusing away from the target.The radial component of electron number densities remained higher than the axial number density component,whereas the axial ion number density at all laser irradiances and axial distances remained higher than the radial ion number density.The higher axial self-generated electric field(SGEF)values than radial SGEF values are correlated with the effective charge-separation mechanism of electrons and ions.The generation of a self-generated magnetic field is observed dominantly in the radial direction at increasing laser irradiance as compared to the axial one due to the deflection of fast-moving electrons and the persistence of two-electron temperature on the radial axis. 展开更多
关键词 Faraday cup axial and radial expansion space-charge effect laser-induced zirconium plasma two-electron temperature distribution self-generated electric and magnetic fields
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Enhancing the Decomposition of Paper Cups Using Galleria Mellonella and Eisenia Fetida
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作者 Shadi Moqbel Habib Al-Ghoul +1 位作者 Abd Al-Majeed Al-Ghzawi Rami Mukbel 《Journal of Renewable Materials》 EI CAS 2024年第2期349-367,共19页
The composition of paper cups creates a challenge for the recycling industry,as the paperboard–plastic film composite is hard to separate.Therefore,paper cups are sent to landfills or waste incinerators.This study ex... The composition of paper cups creates a challenge for the recycling industry,as the paperboard–plastic film composite is hard to separate.Therefore,paper cups are sent to landfills or waste incinerators.This study explores the combined use of red worms(Eisenia fetida)and Greater wax moth(Galleria mellonella)in the biodegradation of paper cups.The study investigates the conditions and combinations that promote using Eisenia fetida and Galleria mellonella for degrading paper cups.The study considered the influence of environmental temperature,the presence of food waste,varying the number of Eisenia fetida worms,and the presence of a Galleria mellonella growth-slowing agent on the degradation process.To achieve the study objectives,the study followed a quantitative approach.The study monitored the degradation of paper cup cuts that were placed in jars containing different combinations of Eisenia fetida worms,Galleria mellonella larvae,food waste,bedding material,and Galleria mellonella growth-slowing agents.The study found that the best operating temperature is 30oC.The study found that using food waste improves the performance of Eisenia fetida worms and Galleria mellonella larvae significantly.The study found that adding a Galleria mellonella growth-slowing agent slightly enhances the degradation of the paper cup.Finally,a numerical model was obtained to simulate the paper cup degradation efficiency. 展开更多
关键词 Paper cups resource recovery RECYCLING circular economy Galleria mellonella Eisenia fetida
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Acetabular cup size trends in total hip arthroplasty
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作者 Daniel Patrick McKenna Alex Price +3 位作者 Timothy McAleese Darren Dahly Paul McKenna May Cleary 《World Journal of Orthopedics》 2024年第1期39-44,共6页
BACKGROUND Total hip arthroplasty(THA)is a common procedure for end stage osteoarthritis.The learning curve for THA is complex and challenging.One of the most difficult skills to master is acetabular reaming.We wish t... BACKGROUND Total hip arthroplasty(THA)is a common procedure for end stage osteoarthritis.The learning curve for THA is complex and challenging.One of the most difficult skills to master is acetabular reaming.We wish to identify if experience in arthroplasty leads to preservation of more bone stock.AIM To investigate if increasing surgeon experience will predict an ever decreasing acetabular cup size.METHODS A retrospective case series of four attending orthopaedic surgeons was completed.All uncemented elective total hip arthroplasties since appointment were selected for inclusion.The size of acetabular cup used was noted and logistic regression was used to identify if a trend to smaller cups existed.RESULTS A total of 1614 subjects were included with a mean age of 64 years.Overall cups were on average 0.18mm smaller per year(95%confidence interval-0.25 to-0.11,P<0.001).Individual surgeon trends showed cup sizes to decrease 0.27 mm/year for surgeon A,0.02 mm/year for surgeon B,0.15 mm/year for surgeon C and 0.29 mm/year for surgeon D.Three of the four surgeons had a more pronounced trend to smaller cups for male subjects than their female counterparts.CONCLUSION We found increasing surgeon experience to be associated with an ever-decreasing acetabular cup size.Smaller acetabular cup size may act as a surrogate marker of surgical proficiency by virtue of decreased acetabular reaming. 展开更多
关键词 HIP ARTHROPLASTY ACETABULUM CUP Learning
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