XP-endo Finisher清除椭圆形根管细菌生物膜的效果研究

目的:比较XP-endo Finisher(XPF)和被动超声冲洗(passive ultrasonic irrigation,PUI),及两者联合应用清除椭圆形根管细菌生物膜的效果。方法:选取54颗成人离体单根管横截面为椭圆形的前磨牙,建立多菌种生物膜感染根管模型。厌氧培养4周后随机选取6颗为对照,扫描电镜(Scanning electron microscopy,SEM)确认多菌种生物膜形成。余牙应用Vortex Blue预备到40/.06后分为4个实验组(n=12),分别采用传统注射器冲洗(conventional needle irrigation,CNI)、PUI、XPF、PUI+XPF结合3%次氯酸钠溶液进行根管处理。采集样本根管尖、中、冠1/3SEM图像,计算残余细菌生物膜面积百分比。结果:细菌清除效率由高到低依次为PUI+XPF、XPF、PUI、CNI,前两者无统计学差异(P>0.05)。结论:XPF清除椭圆形根管生物膜的效果优于PUI和CNI,与PUI联合应用有加强效果但无显著差异。

Effects of long-chain fatty acid supplementation on the growth performance of grower and finisher pigs: a meta-analysis

Background: Supplementation of feed with long-chain fatty acids(LCFAs) during the grower and finisher phases has long been discussed as a growth promotion strategy in pigs, but its effects are inconsistent. The purpose of our study was to comprehensively evaluate its effects on the growth performance based on the average daily gain(ADG), average daily feed intake(ADFI) and gain: feed(G:F) ratio and to unveil the roles of the basal diet, LCFA concentration and LCFA saturation.Results: We searched the Pub Med and Web of Science databases(articles published from Jan 1 st, 2000, to Sep 30 th,2018;restricted to English) and compared LCFA-supplemented diets with control diets. We retrieved 2346 studies, 18 of which(1314 pigs, 26 records) were eligible for our analysis. We used a random-effects model to calculate the weighted mean differences(WMDs) and 95% confidence intervals(CIs). LCFA supplementation in the grower-finisher phase improved the ADG(WMD = 41.74 g/d, 95% CI: 8.81 to 74.66, P = 0.013) and G:F ratio(WMD = 0.019, 95% CI: 0.006 to 0.032, P = 0.003). For supplementation solely in the finisher phase, we found a similar performance in the ADG(WMD = 39.93 g/d, 95% CI: 26.48 to 53.38, P < 0.001) and G:F ratio(WMD = 0.019, 95% CI: 0.006 to 0.032, P < 0.001) but a reduction in the ADFI(WMD =-83.863 g/d, 95% CI:-156.157 to-11.569, P = 0.023). Specifically, approximately 5%LCFA supplementation in the finisher phase had significant effects on the ADG(WMD = 51.385 g/d, 95% CI: 35.816 to66.954, P < 0.001), ADFI(WMD =-102.869 g/d, 95% CI:-189.236 to-16.502, P = 0.02) and G:F ratio(WMD = 0.028, 95%CI: 0.018 to 0.039, P < 0.001), whereas a concentration of approximately 1% exhibited no effects.Conclusions: Overall, regardless of the basal diet and saturation, LCFA supplementation greatly improves the growth performance of grower and finisher pigs, primarily by increasing the energy density.

Expert Experience and Data-Driven Based Hybrid Fault Diagnosis for High-SpeedWire Rod Finishing Mills

The reliable operation of high-speed wire rod finishing mills is crucial in the steel production enterprise.As complex system-level equipment,it is difficult for high-speed wire rod finishing mills to realize fault location and real-time monitoring.To solve the above problems,an expert experience and data-driven-based hybrid fault diagnosis method for high-speed wire rod finishing mills is proposed in this paper.First,based on its mechanical structure,time and frequency domain analysis are improved in fault feature extraction.The approach of combining virtual value,peak value with kurtosis value index,is adopted in time domain analysis.Speed adjustment and side frequency analysis are proposed in frequency domain analysis to obtain accurate component characteristic frequency and its corresponding sideband.Then,according to time and frequency domain characteristics,fault location based on expert experience is proposed to get an accurate fault result.Finally,the proposed method is implemented in the equipment intelligent diagnosis system.By taking an equipment fault on site,for example,the effectiveness of the proposed method is illustrated in the system.

Novel Batch Polishing Method of Ceramic Cutting Inserts for Reducing Tool Wear

Ceramic cutting inserts are a type of cutting tool commonly used in high-speed metal cutting applications.However,the wear of these inserts caused by friction between the workpiece and cutting inserts limits their overall effectiveness.In order to improve the tool life and reduce wear,this study introduces an emerging method called magnetic field-assisted batch polishing(MABP)for simultaneously polishing multiple ceramic cutting inserts.Several polishing experiments were conducted under different conditions,and the wear characteristics were clarified by cutting S136H steel.The results showed that after 15 min of polishing,the surface roughness at the flank face,edge,and nose of the inserts was reduced to below 2.5 nm,6.25 nm,and 45.8 nm,respectively.Furthermore,the nose radii of the inserts did not change significantly,and there were no significant changes in the weight percentage of elements before and after polishing.Additionally,the tool life of the batch polished inserts was found to be up to 1.75 times longer than that of unpolished inserts.These findings suggest that the MABP method is an effective way to mass polish ceramic cutting inserts,resulting in significantly reduced tool wear.Furthermore,this novel method offers new possibilities for polishing other tools.

Synthesis and Characterization of Nonionic Waterborne Polyurethane and Application to Wool Fabric Finishing

A nonionic waterborne polyurethane(WPU) was synthesized by the self-emulsification method using polyether diol(N220),isophorone diisocyanate(IPDI),trimethylolpropane poly(ethylene glycol monomethyl ether)(N120),1,4-butanediol(BDO) and trimethylolpropane(TMP) as the main materials.The effects of the NCO/OH ratio on the emulsion and film properties of NWPU were explored.The experimental results show that the NWPU prepared at an NCO/OH ratio of 1.1 has good emulsion stability and easy film formation,and the resultant film was elastic,soft,and transparent.The sample was used for wool finishing and the application performance was evaluated.When the NWPU dosage reached 40 g·L^(-1),the fabric area felt shrinkage rate reduced from 8.97% to 4.75%,the pilling rating raised from grade 2-3 to grade 4,and the whiteness value only decreased by 3.87%.

Three decades and beyond:Breeding,biotech breakthroughs and future of China's GM insect-resistant cotton

Cotton(Gossypium spp.)is a pivotal crop in the global textile industry,providing essential natural fibers.Additionally,cottonseed offers significant value as a source of oil and as feed for livestock(Huang et al.2021;Wen et al.2023).The sector,dependent on cotton,features a comprehensive value chain extending from the processing of fibers to the production of finished textiles,and it employs tens of millions of individuals(Dorward et al.1970).

High-Speed and Low-Noise Gear Finishing by Gear Grinding and Honing:A Review

Gears are important mechanical parts for transmitting power and play an increasingly important role in the machinery industry.The electric vehicle industry developed rapidly and became a vital development field of the automotive industry over the past few years.The conversion of energy increases the requirements for electric vehicle transmissions,which promotes the development of high-speed and low-noise transmission gear.This paper elaborates on the research progress of high-speed and low-noise gear finishing methods.Firstly,this review analyses the machining requirements,finishing,and specific machining technologies of high-speed and low-noise gears.The importance of gear grinding and honing in high-speed and low-noise gear machining is highlighted.Secondly,the applications of gear grinding and honing in gear modification,error compensation,and texture control are analyzed.Furthermore,the role of precision machining technology in improving gear performance is clarified.Finally,the design and processing methods of the modified tooth flank for gear modification are summarized.In addition,the influence of tooth surface texture on noise is described,and the texture change methods are explored.The well-known open problems of gear finishing are finally identified,and some new research interests are also pointed out.This review will provide valuable references for further research on gear finishing.

Effects of altering the ratio of C16:0 and cis-9 C18:1 in rumen bypass fat on growth performance, lipid metabolism, intestinal barrier, cecal microbiota, and inflammation in fattening bulls

Background C16:0 and cis-9 C18:1 may have different effects on animal growth and health due to unique metabolism in vivo.This study was investigated to explore the different effects of altering the ratio of C16:0 and cis-9 C18:1 in fat supplements on growth performance,lipid metabolism,intestinal barrier,cecal microbiota,and inflammation in fattening bulls.Thirty finishing Angus bulls(626±69 kg,21±0.5 months)were divided into 3 treatments according to the randomized block design:(1)control diet without additional fat(CON),(2)CON+2.5%palmitic acid calcium salt(PA,90%C16:0),and(3)CON+2.5%mixed fatty acid calcium salt(MA,60%C16:0+30%cis-9 C18:1).The experiment lasted for 104 d,after which all the bulls were slaughtered and sampled for analysis.Results MA tended to reduce 0–52 d dry matter intake compared to PA(DMI,P=0.052).Compared with CON and MA,PA significantly increased 0–52 d average daily gain(ADG,P=0.027).PA tended to improve the 0–52 d feed conversion rate compared with CON(FCR,P=0.088).Both PA and MA had no significant effect on 52–104 days of DMI,ADG and FCR(P>0.05).PA tended to improve plasma triglycerides compared with MA(P=0.077),significantly increased plasma cholesterol(P=0.002)and tended to improve subcutaneous adipose weight(P=0.066)when compared with CON and MA.Both PA and MA increased visceral adipose weight compared with CON(P=0.021).Only PA increased the colonization of Rikenellaceae,Ruminococcus and Proteobacteria in the cecum,and MA increased Akkermansia abundance(P<0.05).Compared with CON,both PA and MA down-regulated the m RNA expression of Claudin-1 in the jejunum(P<0.001),increased plasma diamine oxidase(DAO,P<0.001)and lipopolysaccharide(LPS,P=0.045).Compared with CON and MA,PA down-regulated the ZO-1 in the jejunum(P<0.001)and increased plasma LPS-binding protein(LBP,P<0.001).Compared with CON,only PA down-regulated the Occludin in the jejunum(P=0.013).Compared with CON,PA and MA significantly up-regulated the expression of TLR-4 and NF-κB in the visceral adipose(P<0.001)and increased plasma IL-6(P<0.001).Compared with CON,only PA up-regulated the TNF-αin the visceral adipose(P=0.01).Compared with CON and MA,PA up-regulated IL-6 in the visceral adipose(P<0.001),increased plasma TNF-α(P<0.001),and reduced the Ig G content in plasma(P=0.035).Compared with CON,PA and MA increased C16:0 in subcutaneous fat and longissimus dorsi muscle(P<0.05),while more C16:0 was also deposited by extension and desaturation into C18:0 and cis-9 C18:1.However,neither PA nor MA affected the content of cis-9 C18:1 in longissimus dorsi muscle compared with CON(P>0.05).Conclusions MA containing 30%cis-9 C18:1 reduced the risk of high C16:0 dietary fat induced subcutaneous fat obesity,adipose tissue and systemic low-grade inflammation by accelerating fatty acid oxidative utilization,improving colonization of Akkermansia,reducing intestinal barrier damage,and down-regulating NF-κB activation.

A Sustainable Solution Building containerized mini hydropower plants for Indonesian islands

One day in July 2019,two electrical engineers from China arrived at Brawijaya University in Malang,East Java,Indonesia.They had been tasked with finishing the installation,testing,and commissioning of a containerized mini hydropower plant built on the campus not long before.Not many hydropower plants are built on university campuses.Universities often have space,but dams are massive.In this case,the mini hydropower plant was only the size of a twenty-foot-equivalent unit(TEU).Without signage,passersby would never suspect that the structure was a mobile hydropower plant.

Reaching for the Sky

The emerging low-altitude industry is innovative,green,and low-carbon.“Check this out!We are in Shenzhen,China,and we are in the middle of a park,and we are about to have some drinks dropped off by a drone.I’ve never experienced anything like this.The drone is landing now,and we’ve ordered Starbucks.Will the delivery be successful?Let’s have a look.”As soon as Melissa Hutchinson,the mom in the British travel vlogging family the Hutchinsons,finished speaking,a drone carrying a takeout box“came from the sky”and landed on a smart drone delivery locker nearby.Melissa stepped forward and entered the last four digits of her phone number on the screen of the locker.The window immediately opened,and she fished out the package sitting there.Inside the cardboard box was the familiar brown Starbucks paper bag with her matcha tea inside.

Epiphanic Revival: Exploring Metallic Finishes on Batik Fabrics in Ghana

Batik fabric is an integral part of the traditional cloth culture of the Ghanaian traditional setting. However, the batik fabric has marginal usage due to its casual visual appearance. This studio practice seeks to explore the epiphanic revival in the use of metallic finishes on batik substrate to create an enhanced visual appearance with embellished aesthetic sensibilities and diversified use. The researchers adopted the studio-based approach of the qualitative design to manipulate handmade tools, techniques (collagraph) and the batik fabrics through experimentation to produce a glittering mercurial batik fabric which is typically an industrial practice. The studio practice took place at the Textile Design and Technology studio, Takoradi Technical University, Ghana. The traditional batik fabric was manipulated through fabric decoration techniques in accordance with studio-based practices. The Addie model was adopted as a methodological approach in the analysis, design, development, implementation, and evaluation processes of the experimentation processes of the study. Findings revealed that the hand techniques used in the production process for the metallic prints produced interesting accidentals finishes and effects that machine work cannot achieve, producing new discoveries of visual enhancements of traditional batik fabric. Traditional batiks became mercurial with glittery effects. The metallic prints on the fabric also changed its consumption pattern from mere casual fabric to classic and cosmopolitan fabric for varied uses suitable for wearable to non-wearable.

Microfactory for filter bags developed in Sweden

After an intensive few years of development,ACG Kinna Automatic and ACG Nystrom–members of TMAS,the Swedish textile machinery association–have delivered the first microfactory for the production of fully finished filter bags to a major international filtration industry customer,in cooperation with JUKI Central Europe.

Connected Advantage Interlinked supply chains are good for both China and the rest of the world

As both a beneficiary of global supply chain integration and a contributor to the creation of a new supply chain ecosystem,China is of immense importance to the growth of international supply chains.For example,it’s manufacturing industry is indispensable across every stage of the global supply chain from raw material to intermediate goods production and the assembly of finished products.And with a large consumer base,China has been the place where global goods and services are consumed.

Textile industry innovations in dyeing and finishing processes:Minimizing environmental impact

Textiles are one of the oldest industries in the world which has been manufacturing fabrics and materials needed for various purposes.However,the industry has been confronted with some problems regarding its pollution;specifically the dyeing and finishing processes.As for the given issues,there has been a trend in recent years to come up with more environmentally friendly solutions.

Finishing first with Monforts at Techtextil 2024

Monforts–which celebrates its 140th anniversary this year–continues to lead the field in finishing and coating technologies for technical textiles.The company is looking forward to many fruitful discussions on the scope of existing and new processes and applications at the forthcoming Techtextil show in Frankfurt from April 23-26.

Reducing Food Waste

For many people in the world,wasting food is a bad habit.They buy more than they need at the market.Then they let fruits and vegetables spoil at home.How can you reduce food waste?First,don't buy too much.You may not be able to eat it all before it spoils.Be careful when you store food.Put older things in the front of your cupboards or refrigerator.Then use those things first.If you cook a meal and don't finish it,freeze it for later.Don't throw it away.

US:Textile market size,share&trends and forecasts from 2024 to 2030

The global textile market was valued at USD 1,69513 billion in 2023 and is anticipated to grow at a compound annual growth rate (CAGR) of 7.6%in revenue from 2024 to 2030.The ever-increasing apparel demand from the fashion industry and the meteoric growth of e-commerce platforms are expected to drive market growth over the forecast period.The textile industry works on three major principles:designing,producing,and distributing different flexible materials such as yarn and clothing.Many processes,such as knitting,crocheting,weaving,and others,are primarily used to manufacture a wide range of finished and semi-finished goods in bedding,clothing,apparel,medical,and other accessories.

Huafang Co.,Ltd.:A new journey of high-quality development

Huafang Co., Ltd. has become the leading textile company in China’s dyeing and finishing industry by virtue of its excellent quality of products and innovation. Facing the complicated and changing international situation and domestic economic pressure, the company shows resilient entrepreneurial spirit.

Monforts to debut the coaTTex at Techtextil 2024

At the Techtextil show for technical textiles which take place in Frankfurt from April 23-25,Monforts launched its new coaTTex coating unit exclusively dedicated to air knife and knife-over-roller coating.For single-sided application with paste or foam,the versatile coaTTex is suitable for both incorporation into existing finishing ranges as well as installation with new Monforts lines,notably the industry-leading Montex stenter systems.

Monforts and Uniferro join forces at Febratex 2024

Having recently secured significant major orders in Central and South America,finishing machinery specialist Monforts will exhibit at the upcoming Febratex textile machinery exhibition taking place in Blumenau,Brazil,from August 20-23,along with Uniferro,its new regional pa rtner.This new alliance follows the well-earned retirement of Herbert Erdmann of the service agency Euro Texteis,who has worked tirelessly with Monforts over more than 30 years to secure a leading position in the region for Montex stenter dryers,Thermex dyeing ranges and associated finishing technology.