A utility and easily fabricated dual-mode fiber film for efficient and comfortable thermal management

Nowadays, the global climate is constantly being destroyed and the fluctuations in ambient temperature are becoming more frequent. However, conventional single-mode thermal management strategies(heating or cooling) failed to resolve such dynamic temperature changes. Moreover, developing thermal management devices capable of accommodating these temperature variations while remaining simple to fabricate and durable has remained a formidable obstacle. To address these bottlenecks, we design and successfully fabricate a novel dual-mode hierarchical(DMH) composite film featuring a micronanofiber network structure, achieved through a straightforward two-step continuous electrospinning process. In cooling mode, it presents a high solar reflectivity of up to 97.7% and an excellent atmospheric transparent window(ATW) infrared emissivity of up to 98.9%. Noted that this DMH film could realize a cooling of 8.1 ℃ compared to the ambient temperature outdoors. In heating mode, it also exhibits a high solar absorptivity of 94.7% and heats up to 11.9 ℃ higher than black cotton fabric when utilized by individuals. In practical application scenarios, a seamless transition between efficient cooling and heating is achieved by simply flipping the film. More importantly, the DMH film combining the benefits of composites demonstrates portability, durability, and easy-cleaning, promising to achieve large-scale production and use of thermally managed textiles in the future. The energy savings offered by film applications provide a viable solution for the early realization of carbon neutrality.

Evaporative Condensers in Comfortable Air Conditioning System

The operating theory of an evaporative condenser was expatiated.The difference between an evaporative condensing refrigeration system and a general refrigeration system was analyzed.Compared with the air-cooled and the water-cooled,the virtues of energy-conservation and water-conservation of evaporative condensers were analyzed.Some questions existing in the application of evaporative condensers were pointed out,the corresponding solving methods were analyzed accordingly,and the development trend of evaporative condensing technique in mechanical refrigeration system field and the applied foreground of evaporative condensers in comfortable air conditioning were prospected.

Comfortable Housing Projects for Tibetan Farmers and Herdsmen from the Perspective of Poverty Alleviation

Through questionnaire survey and field interview of farmers and herdsmen,this paper studied the comfortable housing projects implemented since 2006 in Namling County of Shigatse City.Taking the comfortable housing projects in Namling County as an example,this paper elaborated the relationship between the poverty alleviation and the comfortable housing projects for farmers and herdsmen and discussed the necessities for implementing comfortable housing projects in the context of the poverty alleviation.There are some problems at the same time of social,economic and ecological benefits of implementing the comfortable housing projects for farmers and herdsmen.Finally,it came up with pertinent recommendations for strengthening and improving the construction of comfortable housing projects in Namling County.

More Comfortable,More Fashionable

Dow XLATM Elastic Fibers Leads the Trend Denim Today, when people are pursuing a free and comfortable life, fashionable style is no more the only criteria when choosing clothes. Whether the garment allows a great range of motion,

Comfortable Housing-the Essence of a People’s Livelihood-An Interview with Jampa Phuntsok,the Chairman of the Government of TAR

In the 1^(st) Session of the 9^(th) People's Congress of e Tibet Autonomous Region (TAR),held on nuary 22,2008,Mr.Jampa Phuntsok was again ted Chairman of the Tibetan Government.There is no doubt that the election outcome demonstrates once more that the population of over 2.8 million Tibetans ac- knowledges the achievements of the preceding leadership. Not surprisingly,in this five-year administrative

COMFORTABLE HOUSING AND HAPPY LIVES OF TIBETAN FARMERS AND HERDERS

In 2006, a hot topic arose in regard to Tibetan economic development. This was the“ comfortable housing project”. A range of new houses and enumerable new villages are rising above the ground at accessible sights such as the sides of roads and grasslands close to villages. Beaming smiles are fixed on the faces of farmers and herders while they are moving into new houses. Since the beginning of 2006, Tibet has launched a comfortable housing project to settle herders, transferring living places for the sak...

Optimization of Soundscape in Theme Park Based on Soundscape Comfortable Degree——A Case Study of China Dinosaur Land in Changzhou

Tourism soundscape is a new field of tourism landscape research, soundscape designs offer new concepts for the landscape research and development. Taking China Dinosaur Land in Changzhou City for example, visitors' perception about soundscape comfort in theme parks was studied. The researches found that acoustic comfort was infl uenced by objective parameters of sound and subjective perception of visitors, and when the soundscape volume stayed at a certain threshold value, visitors would gain the most satisfi ed acoustic comfort experience, and they were most sensitive to sound elements that able to convey cultural connotations of the theme park. On this basis, this paper adopted positive design, negative design, and zero design, and proposed the concepts of optimizing theme park soundscapes.

Comfortable Travel to Sichuan,the First Bend of the Yellow River

During the Yellow River Tourism Overseas Promotion Season 2023,Sichuan Province displayed the rich and vivid cultural and tourism image of the part of the Yellow River in Sichuan,specifically the cultural and tourism resources of 2 prefectures and 5 counties in Sichuan where the Yellow River flows,fully demonstrating the beautiful scenery of Sichuan.

STRAW BALES, A POSSIBLE SOLUTION FOR HYGRO-THERMALLY COMFORTABLE DWELLINGS IN CHILE’S CENTRAL VALLEY: PHYSICAL TEST CHAMBERS AND IN SITU MEASUREMENTS

Dwellings in a Mediterranean climate, such as that of Chile’s Central Valley, must provide hygro-thermal comfort both during the cold winters, and the hot days and cool summer nights. Straw, once a material common in Chile’s indigenous and vernacular architecture, could meet these demands when coupled with sufficient thermal mass in the form of earth renders and floor finishes. This article presents measurements of dry bulb temperatures and relative humidity, both in physical test chambers and Chilean straw bale homes. The results of these measurements confirm that straw bale construction could provide hygro-thermal comfort with heating demands 28% less than those of constructions that meet the Chilean thermal building regulations. Straw bale, therefore, could provide a viable solution for comfortable, energy efficient, rural dwellings in Chile’s Central Valley. Whilst over 40 private straw bale projects have been completed in Chile to date, restrictions applying to projects receiving government subsidies prevent this technology being available to those who need it most.

A Modest But Comfortable Life

It’s been 10 days since I arrived in Eritrea,and during this time,I have been staying at the Midian Hotel in its capital,Asmara.Despite being a hotel,there was no water for shower,so I had to make do with sleeping fully clothed.During the stay of more than 10 days.

The Comfortable Housing Project and Its Impact on Housing Reform

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Changes in thermal comfortable condition in the Qinghai‒Tibet Plateau from 1979 to 2020

Qinghai‒Tibet Plateau(QTP)is one of the most sensitive regions to climate change in the world.As a result,people in the QTP are more likely to be sensitively affected by climate change than those in other regions,particularly in the poverty area.Using the Universal Thermal Climate Index(UTCI)derived from ERA5 and population data,changes in annual thermal comfort condition and population under such condition in the QTP are systematically analyzed.The results reveal that there is considerable regional heterogeneity in the distribution of UTCI and the number of comfortable days(CDs),mainly due to the complex geographic features.In most areas of the QTP,the increase in UTCI leads to an increased number of comfortable days.Spatial distribution and temporal change in the number of comfortable days are found to be principally related to altitude.In areas within altitudes of 3000–4500 m,the number of comfortable days increases by up to 6 d per decade,which is faster than that in higher elevation areas above 4500 m.Results also indicate that thermal comfortable condition has improved in areas of 2500–5000 m(medium to high altitude),particularly in spring and autumn.Further research indicates that population distribution also shows a regional clustering feature,with the majority of residents residing in cities and their vicinities,where a higher number of comfortable days were observed.Most areas with a greater number of comfortable days have experienced a more significant increase in population under thermal comfortable conditions.It implies that climate change more likely has a large influence on population in the QTP.These findings are expected to enhance tourism development and the assessment of the impact on the living environment.The findings can be helpful for optimizing of tourism development and better understanding how climate change affects population distribution.

Upgraded and More Comfortable

On a recent visit to the Guifeng scenic area, located in Shangrao City of east China＇s Jiangxi Province, local resident Ren Yan was most impressed by something other than the natural environ- ment. ＂Public lavatories in Guifeng are quite something,＂ Ren exclaimed. In the past, the scenic area＇s public lav- atories were not only dirty and smelly, but also few and far between, so tourists had to wait a long time for their turn. Today, the area is equipped with 13 public Ioos, and every one of them is renovated and upgraded so that they are not only clean and convenient, but also display distinctive local features.

Superabsorbent Fibers for Comfortable Disposable Medical Protective Clothing

Disposable medical protective clothing for 2019-nCoV mainly consists of stacked layers with nanopore films,polymer coated nonwoven fabrics and melt-blown nonwoven fabrics against anti-microbial and anti-liquid penetration.However,such structures lack moisture permeability and breathability leading to an uncomfortable,stuffy wearing experience.Here,we propose a novel medical protective clothing material with a superabsorbent layer to enhance moisture absorption.Poly(acrylic acid-co-acrylamide)/polyvinyl alcohol superabsorbent fibers(PAAAM/PVA fibers)were prepared via wet spinning.And the superabsorbent composite layer was stacked from PAAAM/PVA fibers,bamboo pulp fibers(BPF)and ethylene-propyl-ene side by side fibers(ESF).The novel disposable medical protective composite fabric was obtained through gluing the superabsorbent layer to the inner surface of strong antistatic polypropylene nonwoven fabric.The resultant composite fabric possesses excellent absorption and retention capacity for sweat,up to 12.3 g/g and 63.8%,and a maximum hygroscopic rate of 1.04 g/h,higher than that of the conventional material(only 0.53 g/h).The moisture permeability of the novel material reached 12,638.5 g/(m^(2) d),which was 307.6%of the conventional material.The novel material can effectively reduce the humidity inside the protective clothing and significantly improve the comfort of medical staff.

Accommodation-Free Head Mounted Display with Comfortable 3D Perception and an Enlarged Eye-box

An accommodation-free displays,also known as Maxwellian displays,keep the displayed image sharp regardless of the viewer’s focal distance.However,they typically sufer from a small eye-box and limited efective feld of view(FOV)which requires careful alignment before a viewer can see the image.Tis paper presents a high-quality accommodation-free head mounted display(aHMD)based on pixel beam scanning for direct image forming on retina.It has an enlarged eye-box and FOV for easy viewing by replicating the viewing points with an array of beam splitters.A prototype aHMD is built using this concept,which shows high defnition,low colour aberration 3D augmented reality(AR)images with an FOV of 36∘.Te advantage of the proposed design over other head mounted display(HMD)architectures is that,due to the narrow,collimated pixel beams,the high image quality is unafected by changes in eye accommodation,and the approach to enlarge the eye-box is scalable.Most importantly,such an aHMD can deliver realistic three-dimensional(3D)viewing perception with no vergence-accommodation confict(VAC).It is found that viewing the accommodation-free 3D images with the aHMD presented in this work is comfortable for viewers and does not cause the nausea or eyestrain side efects commonly associated with conventional stereoscopic 3D or HMD displays,even for all day use.

Liquid Metal Superelastic Fiber Mat Enabling Highly Permeable Wearable Electronics Toward Comfortable e-Skins

Low water vapor and air permeability is a persistent challenge in wearable and on-skin electronics,as it reduces wearing comfort,and leads to skin irritation and inflammation in the long term.To tackle this issue,Zheng and coworkers designed a stretchable conductor based on an elastomeric fiber mat coated by liquid metal.

UPGRADES TO SHANGHAI AIRPORTS The Waiting Game Gets a Little More Comfortable

Late last month,Hongqiao Airport's T1 Building A Terminal unveiled a completely revamped airport experience.This was the largest upgrade the airport has seen since it was built in 1921,with an increase of 40 percent floor space,higher ceilings,and the best bit,an increase in efficiency And there's more;there are some'fun'new additions too.

Reinforcement Learning Model for Energy System Management to Ensure Energy Efficiency and Comfort in Buildings

This article focuses on the challenges ofmodeling energy supply systems for buildings,encompassing both methods and tools for simulating thermal regimes and engineering systems within buildings.Enhancing the comfort of living or working in buildings often necessitates increased consumption of energy and material,such as for thermal upgrades,which consequently incurs additional economic costs.It is crucial to acknowledge that such improvements do not always lead to a decrease in total pollutant emissions,considering emissions across all stages of production and usage of energy and materials aimed at boosting energy efficiency and comfort in buildings.In addition,it explores the methods and mechanisms for modeling the operating modes of electric boilers used to collectively improve energy efficiency and indoor climatic conditions.Using the developed mathematical models,the study examines the dynamic states of building energy supply systems and provides recommendations for improving their efficiency.These dynamic models are executed in software environments such as MATLAB/Simscape and Python,where the component detailing schemes for various types of controllers are demonstrated.Additionally,controllers based on reinforcement learning(RL)displayed more adaptive load level management.These RL-based controllers can lower instantaneous power usage by up to 35%,reduce absolute deviations from a comfortable temperature nearly by half,and cut down energy consumption by approximately 1%while maintaining comfort.When the energy source produces a constant energy amount,the RL-based heat controllermore effectively maintains the temperature within the set range,preventing overheating.In conclusion,the introduced energydynamic building model and its software implementation offer a versatile tool for researchers,enabling the simulation of various energy supply systems to achieve optimal energy efficiency and indoor climate control in buildings.

自制工形鼻额部冷敷包与传统冰袋在鼻中隔偏曲矫正术后的应用比较

目的比较工形鼻额部冷敷包和传统冰袋在鼻中隔偏曲矫正术后的冰敷效果,以期为鼻部手术患者提供一种更加有效的冰敷方案。方法本研究以2021年1月~2022年6月间在宜昌市中心人民医院西陵院区接受鼻中隔偏曲矫正术的患者为研究对象,共计124例。随机分为两组,每组62例。两组分别采用自制工形鼻额部冷敷包(实验组)与传统冰袋(对照组)冰敷。比较两组患者术后24 h、48 h疼痛情况的视觉模拟量表(VAS)评分、肿胀程度评分和舒适度。结果鼻中隔偏曲矫正术冷敷24 h和48 h后,实验组的VAS评分及肿胀程度评分均低于对照组,差异有统计学意义(P<0.05);实验组患者的舒适感明显高于对照组,差异有统计学意义(P<0.05)。结论工形鼻额冷敷包能够减轻鼻中隔偏曲矫正术后鼻腔填塞引起的疼痛和鼻部肿胀,能提高患者舒适度,有利于加速患者的术后康复。

Wearable Inflatable Massage Chair:The Future of Comfort

With the continuous advancement of science and technology,our lifestyles are undergoing significant changes,with wearable technology emerging as a captivating trend.In this digital era,there is a growing demand for solutions that cater to people’s needs for health and comfort.The wearable inflatable massage chair represents one such innovation designed to meet these evolving needs.This project is focused on creating a“wearable and portable massage chair”that is both convenient and lightweight.It serves as a massage solution particularly beneficial for the elderly and sedentary individuals.This innovative chair can be used by the elderly during outings or errands,as well as by office workers on business trips,while driving,or commuting via subway.Users can simply lean against the seat or a wall,enjoying moments of relaxation amid the busy and fast-paced modern era.