Results 61 to 70 of about 42,237 (197)

Advances in Sustainable Production of Bio‐Derived 5‐Alkoxymethylfurfural and Levulinate Esters: A Comprehensive Review

open access: yesCarbon Energy, EarlyView.
The present review discusses the advancement in the catalytic synthesis of 5‐alkoxymethylfurfural (AMF) and levulinate esters (LEs) from the aspects of catalytic systems, reaction mechanisms, product isolation, and techno‐economic analysis, supplying valuable insights toward future sustainable and efficient manufacture of AMF and LEs. ABSTRACT The huge
Jun Zhang   +6 more
wiley   +1 more source

Directional and gradient patterning from sub‐microliter colloidal droplet evaporation on inclined and stretched soft substrates

open access: yesDroplet, EarlyView.
Instead of suppressing the ubiquitous “coffee‐ring” effect, we harness it by integrating stretching, inclination, and rotation of soft substrates. This sequential control allows manipulation of global pattern symmetry and local morphology. By incorporating substrate inclination and rotation of stretched soft substrates, we create diverse patterns that ...
Wandong Bai   +10 more
wiley   +1 more source

A global review of acupuncture and moxibustion recommendations in guidelines/expert consensus for chemotherapy- and/or radiotherapy-induced nausea and/or vomiting

open access: yesWorld Journal of Acupuncture - Moxibustion
Objective: To summarize and analyze the recommendations of acupuncture and moxibustion in the global guidelines/expert consensus of chemotherapy- and/or radiotherapy-induced nausea and/or vomiting, providing a basis for the development of clinical ...
Tian-yu MING   +10 more
doaj   +1 more source

Experimental study on burning rate and flame geometry in construction tunnel fires under high geothermal conditions

open access: yesDeep Underground Science and Engineering, EarlyView.
Abstract As tunnel construction advances in lengths and depths, the construction of tunnels in high geothermal environments has become increasingly common, raising significant fire risks. In this study, a 1:20 scale model tunnel test platform was constructed to investigate the effects of a high geothermal environment on fire behavior in tunnels during ...
Xiaoxian Fei   +6 more
wiley   +1 more source

FY3D/GNOS大气掩星探测温度与TIMED/SABER探测温度和NRLMSISE00 模式温度的比较

open access: yesKongjian kexue xuebao
大气温度数据的精确探测对于研究中高层大气的结构特征和动力学过程具有重要意义. 利用2019年1月至2021年12月共3年的FY3D掩星观测数据, 借助TIMED/SABER探测数据和NRLMSISE00大气模式数据, 对12~100 km范围内的大气温度数据进行比较. 统计分析SABER-FY3D温度偏差(TSABER-TFY3D)和NRLMSISE00-FY3D温度偏差(TNRLMSISE00-TFY3D)及其随纬度、季节的分布和南北半球的差异.
刘 红珊   +7 more
doaj   +1 more source

Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs

open access: yesDeep Underground Science and Engineering, EarlyView.
A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao   +5 more
wiley   +1 more source

Advances in vital‐sign prediction and early‐warning models for underground coal mine workers integrating environmental factors

open access: yesDeep Underground Science and Engineering, EarlyView.
This review synthesizes advances in predicting miners' vital signs by integrating environmental monitoring (dust, temperature, and gas) with physiological data. It highlights multi‐source data fusion techniques and early‐warning models for enhanced occupational safety in underground coal mines.
Junji Zhu   +4 more
wiley   +1 more source

Low‐Temperature in Situ Upgrading of Ultra‐Deep Heavy Oil Using Ni–Ce/MOF–OTf Superacid Catalysts to Enhance Energy Utilization and Sustainability

open access: yesEcoEnergy, EarlyView.
A triflate‐functionalized Ni–Ce/MOF–OTf superacid enables low‐temperature (∼140°C) in situ upgrading of ultra‐deep heavy oil. It reduces viscosity by 92.11% in 12 h, maintains activity over cycles, and delivers 90.25% recovery with a lower carbon footprint by selective bond cleavage. ABSTRACT Ultra‐deep heavy oil is an important unconventional resource,
Li Wang   +5 more
wiley   +1 more source

Flexible Phase Change Bandage Incorporated With Zeolite for Temperature‐Controlled Wound Hemostasis

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A novel flexible hemostatic phase change bandage (HPB) was designed and constructed through chemical cross‐linking and electrospinning to mitigate thermal injury and broaden the application of PCMs in the medical field. Furthermore, the flexible HPB shows thermal stability, strong mechanical strength, excellent infiltration, and reliable thermal ...
Xinyu Zhang   +8 more
wiley   +1 more source

Confined Hot Carrier Cooling Via Excited‐State Energy Gap Engineering in Graphyne Carbon Allotropes

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The excited‐state energy gap (EEG), regulated by the concentration of sp‐hybridized carbon, provides an effective handle for tuning electron–phonon coupling behavior. This design enables long‐lived confinement of hot carriers near the top of the EEG with controllable energy levels.
Fulong Dai   +9 more
wiley   +1 more source

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