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Copyright of Modern Food Science & Technology is the property of Editorial Office of Modern Food Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

[Objective] With profound and complex changes in the human environment, different types of public health emergencies are occurring more frequently. The medical equipment industry has become one of the world's fastest-growing industries, making it particularly important to cultivate "medical--industrial integration" talents with "medical" and "engineering" expertise. Negative pressure isolation chambers, the most efficient means for preventing cross-infection, are mainly used for transporting individuals with highly contagious diseases such as COVID-19 (Corona Virus Disease 2019), SARS (Severe Acute Respiratory Syndrome), avian influenza, and Ebola. However, current negative pressure isolation chambers have limitations, such as a lack of individual manipulation and mobility, low isolation and protection levels, and poor comfort, which seriously compromise patient care efficiency. Therefore, a new type of mobile individual isolation chamber is proposed in this study to improve protection levels and comfort. [Methods] This study developed a simulation analog test system for a mobile individual isolation chamber comprising an aerosol generation chamber, the isolation chamber body, and a remotely operated containment chamber. This system simulated the patient's breathing process and aerosol-contaminated environments, moving at a speed of 10 km/h to mimic patient transfer. The chamber's clinic window was pierced to simulate routine testing and diagnostic activities such as nucleic acid sampling, blood draws, and injections. NaCl aerosol, with a logarithmic particle size distribution in the range of 15-205 nm, was used as the test medium to simulate viral aerosols. Key performance indexes of the innovative mobile individual isolation chamber, such as leakage, permeation, percentage of O2 and CO2, temperature, and relative humidity were tested under different movement states, negative pressure levels, and clinic window treatments. [Results] The chamber could be stabilized to the preset negative pressure value within 1-10 min of operation. Leakage rates for the chamber when at rest and moving were 0.000 3%-0.001 8% and 0.038 8%-0.637 4%, respectively. Permeation rates before and after clinic window piercing were maintained at 0.436 1%-2.565 8% and 0.599 5%-3.56 58%, respectively. Increased negative pressure significantly reduced leakage but significantly increased permeation. O2 and CO2 levels inside the chamber could be maintained at 20%-22% and 0.03%-0.04%, respectively. Under external conditions of 32 °C and 35% relative humidity (RH), the chamber's internal temperature and RH were adjusted to 20 °C-24 °C and 40%-48% within 5 min. The chamber temperature and humidity regulation rate accelerated with increasing negative pressure, and window piercing did not affect O2 and CO2, temperature, and RH levels inside the chamber. [Conclusions] Results show that the new mobile individual isolation chamber offers superior protection and good comfort. This study promotes students' understanding of personal protective equipment, stimulates their creativity and practical ability, provides a reference for practical applications of mobile individual isolation chambers, and supports the development of "medical-industrial integration" talents. [ABSTRACT FROM AUTHOR]

Copyright of Automotive Engineer (1674-6546) is the property of Auto Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The surface quality of the substrate has an important effect on the quality of the growth film. The roughness, uniformity, adhesion residue and oxide layer of the substrate are the evaluation criteria of its surface performance. In this paper, an in-situ thermal treatment method to remove the natural oxides on GaSb (001) substrates for epitaxial growth of CdZnTe films by close-spaced sublimation method was reported. By controlling the temperature and time of the thermal treatment, a clean and smooth substrate state is obtained. The effect of thermal treatment on the morphology and composition of GaSb substrate was analyzed by atomic force microscopy and X-ray photoelectron spectroscopy. The crystal quality of CdZnTe epitaxial film grown on GaSb substrate after thermal treatment was evaluated by double crystal X-ray curve. In order to further study the properties and epitaxial formation mechanism of the micro-defects near the heterogeneous interface, TEM analysis of CdZnTe/GaSb cross section was also carried out. After 180 s thermal treatment at 600 ℃, the GaSb substrate can obtain a clean and relatively flat surface after most of the oxide is removed from the substrate surface, thus improving the crystallization quality of CdZnTe epitaxial film. The full width of half maximum of double crystal X-ray curve is 94″, which approached the crystalline quality of bulk CdZnTe crystal ever reported. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Electronic Measurement & Instrument is the property of Journal of Electronic Measurement & Instrumentation and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Light Industry Machinery is the property of Light Industry Machinery Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Test & Measurement Technology is the property of Publishing Center of North University of China and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Metal Working (1674-165X) is the property of Metal Working Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Automotive Digest is the property of Automotive Digest Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Synthetic Fiber Industry is the property of Sinopec Baling Petrochemical Company and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Adhesive materials, as one of the critical materials in nuclear power plants, play a crucial role in nuclear applications. In comparison to traditional organic adhesives, inorganic adhesives exhibit unique advantages in the nuclear field due to their excellent high-temperature stability, radiation resistance, weather resistance, and cost-effectiveness. This paper firstly provides an overview of the composition, structure, classification, and basic characteristics of inorganic adhesives, followed by a detailed exploration of the bonding mechanisms, modification strategies, and performance enhancement methods of phosphate inorganic adhesives and silicate inorganic adhesives. Research indicates that by optimizing fillers, introducing cross-linking agents, and adjusting curing agents, the high-temperature resistance of inorganic adhesives can be effectively improved. Similarly, significant enhancements in radiation resistance can be achieved through adjustments in curing processes, interfacial optimization, and the introduction of antioxidants. Additionally, innovative applications of inorganic adhesives such as preloading techniques, control of curing temperature, and special treatment of bonding interfaces are discussed. This study provides new perspectives and strategic references for inorganic adhesives application in nuclear power system, thereby facilitating the development of adhesive technology in the field of nuclear power. [ABSTRACT FROM AUTHOR]

Copyright of Information & Control is the property of Gai Kan Bian Wei Hui and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this study, the effects of earthworm in situ treatment of cow dung to produce earthworm manure and conventional organic fertilizer treatment on tomato yield and soil improvement were compared, provide the basis for the sustainable development of facility vegetables. Two tomato varieties were used as materials, earthworm and cow dung were directly inoculated on the ridge after harvesting vegetables in the previous greenhouse, the physical and chemical properties of soil and the yield and quality of tomato were analyzed. The results showed that, reasonable temperature and humidity control could create the living environment of earthworms, earthworm in situ treatment of cow dung to produce vermicompost could reduce soil bulk density(P<0.05), the number of water-stable macroaggregates was increased(P<0.05), mainly concentrated between 2.0 mm≤Ф<3.0 mm and 0.5 mm≤Ф<1.0 mm. There was no significant difference in the effect on soil total salt content(P>0.05), the effects on different base cations were different due to different varieties. There was no significant difference in soil microbial content(P>0.05). The tomato yields of the two varieties were increased by 14.4 % and 24.7 %, respectively. However, the effect on the quality of tomato was different due to different varieties. In summary, the in-situ treatment of cow dung by earthworms to produce earthworm manure could significantly increase the yield of greenhouse tomatoes and significantly improve the physical indicators of the soil. It was recommended to use this method under the condition that there are earthworm farms around the facility agriculture. [ABSTRACT FROM AUTHOR]

Heat stress has posed a significant threat to the laying hens inside the poultry houses in the Northwest region of China. Significant non-uniformities can be found in the thermal distribution and temperature variations in summer. The ventilation system has been the primary measure to regulate the thermal environment in the poultry houses. Excellent airflow arrangement and ventilation strategies are essential for the ventilation efficiency. Still, the continuous operation of fans can inevitably generate the excessive local cold air, thereby wasting the electrical energy for the high cost of environmental control. Alternatively, intermittent ventilation can serve as an efficient way to improve ventilation effectiveness with energy saving. However, it is notably limited to applying to the summer poultry houses so far. In this study, a novel intermittent ventilation was introduced to alleviate the significant temperature fluctuations and ensure the high stability of the thermal environment in the summer poultry houses. According to the internal air temperature, the fan operations were performed on the conventional tunnel-ventilated poultry houses (control house, CH) and sidewall inlets poultry houses (experimental house, EH). Specifically, the fans were regulated, when the temperature exceeded the upper limit. Once the temperature dropped below the lower limit temperature, the fans were deactivated simultaneously, which was different from the continuous operations of fans throughout the summer. The thermal environment was monitored in the operation periods of intermittent ventilation. The environmental conditions inside the poultry houses were also evaluated. The results revealed that the average internal temperatures of experimental and control poultry houses were 25.3 and 26.5 °C, respectively, under the same external environmental temperatures; While the average relative humidity were 65.8% and 62.7%, respectively. The temperature fluctuations during the EH and CH's intermittent and continuous ventilation were 0.6 and 0.7 °C, 1.2 and 1.0 °C, respectively. The maximal difference of temperature in the horizontal direction of EH and CH were 0.3 and 5.2, 0.8 and 4.7 °C, respectively. Temperature variations were assessed in the four-hour intervals. The EH consistently demonstrated more minor temperature fluctuations than the CH when the fans were operated intermittently. The horizontal temperature difference was less than that in the continuous operation in EH. There was no difference in pressure and air velocity under the intermittent and continuous ventilation in the same number of fans. The pressure difference between the interior and the evaporative cooling pad buffer room increased from 17 to 19 Pa from the fan opposite wall to the fan. Average air velocity at the sidewall inlets and along the aisles in the EH were 3.30 and 0.49 m/s, respectively, which were higher by 1.86 and 0.12 m/s, compared with the CH. Therefore, the intermittent ventilation was suitable for the sidewall inlets, to improve the thermal environment within the poultry house significantly. There was great potential for widespread adoption in the Northwest region of China in the summer. The lifespan of the fan was extended for the maximal economic benefits. The intermittent operation times of fans should be determined according to the local climate, poultry houses’ ventilation requirements and the poultry houses’ size. This finding can provide a foundational reference for designing and adjusting the intermittent ventilation in summer poultry houses in the Northwest region of China. [ABSTRACT FROM AUTHOR]

Mud losses into fractures are a technical difficulty frequently encountered in drilling operation. The technical bottleneck is the poor matching between the traditional bridging lost circulation materials and the sizes of the channels through which the mud is lost, and this generally leads to repeated mud losses at the same depth. To deal with this problem, a temperature controlled liquid-solid phase change lost circulation control system is developed based on the principles of thermosetting resin emulsification and high-temperature crosslinking polymerization. This system can adaptively enter fractures of different openings, and form in-situ inside the fractures high-strength particles with a wide size distribution to control the mud losses under the action of the high temperatures in the mud loss zones. In laboratory studies, the structures of the bridging particles generated in-situ inside the fractures are characterized, the mechanical properties and performance of the bridging particles to plug the fractures are tested. The results of the studies show that in the temperature-controlled liquid-solid phase change lost circulation control system, the contents of the high molecular weight resin, the emulsifier, the dispersant, the crosslinking agent and the distilled water are 37%, 5.2%, 0.07%, 25.9% and 31.83%, respectively. This system can in-situ generate particles with sizes distributed between 0.1 mm and 5 mm at temperatures between 50 ℃ and 90 ℃ inside the mud loss zones. After being aged at 120 ℃, the D90 degrading rate of the bridging particles under 60 MPa is only 0.4%, indicating that the system has high compressive strength. Using one temperature-controlled liquid-solid phase change lost circulation control system, fractures with openings between 1 mm and 5 mm can all be plugged, and the plugged fractures can bear pressures up to10 MPa. This system can be used to realize adaptive plugging, and is expected to solve the difficulties in controlling mud losses into fractures of unknown openings. [ABSTRACT FROM AUTHOR]

Existing energy storage plants currently employ traditional steam compression refrigeration, and the utilization ratio of natural cold sources requires enhancement. The introduction of air pump heat pipe technology can remedy this problem. According to the temperature control indicators of the air-cooled energy storage battery cabinet, the 20 kW air-cooled gas pump heat pipe composite air condition prototype was designed and the experimental study on the prototype performance is conducted. The testing methodology utilizes the enthalpy difference method, with the outdoor dry-bulb temperature controlled between -5 ℃ and 35 ℃. Data pertaining to the cooling capacity and power consumption of the prototype at 100% load are meticulously recorded for analysis. The results show:1) Lithium batteries work best in the range of 15 ℃～35 ℃. During the charging/discharging process, excessive temperature difference between battery cells can cause series capacity mismatch, insufficient charging between parallel circuit batteries/clusters, and incomplete discharge; 2) Traditional battery cabinets do not have cold/hot channel isolation, and there is a certain amount of airflow mixing. It is necessary to control the return air temperature of the air-cooled air condition in the energy storage battery cabinet to 25±1 ℃; 3) Under the same condenser and evaporator configuration, the energy efficiency ratio(EER)of traditional air-cooled air condition and gas pump heat pipe composite air condition are both 2. 21 under outdoor operating conditions of 35 ℃, the EER reach 3.81 under outdoor operating conditions of 10 ℃, the EER reach 5. 63 under air pump heat pipe composite air condition, indicating good energy-saving potential; 4) The gas pump heat pipe composite air condition technology is simple, reliable, and has good energy-saving advantages. Under all outdoor operating conditions, the annual energy efficiency ratio (AEER) of traditional air-cooled air condition is 3. 31, while the AEER of air pump heat pipe composite air condition is 4.04. [ABSTRACT FROM AUTHOR]

As the mining depth of major gold mines around the world increases, high-temperature surrounding rock transfers a significant amount of heat to the airflow in roadways, thereby significantly raising the air temperature. The use of insulating materials on roadway surfaces has proved to be an effective method for improving the thermal environment of underground workplaces. This study validates the functionality of pumping wet shotcrete with phase change materials (PWS-MPCM), previously developed for roadway support, using fluid dynamics numerical simulation to analyze the temperature distribution within the surrounding rock. The results show that PWS MPCM significantly impacts the temperature distribution within the surrounding rock and exhibits excellent thermal insulation and temperature control properties. This study demonstrates that PWS-MPCM can be a fundamental solution for mitigating heat hazards in deep gold mines. [ABSTRACT FROM AUTHOR]

(Objective) Improved cold chain transportation equipment and analyzed the impact of active and passive dual modes on the environmental distribution characteristics inside cold chain containers. (Methods) An active and passive dual-mode refrigerated container (temperature control range is --1-10 °C) was proposed, which integrated refrigeration unit, fiber air supply pipe and phase-change cold storage plate. The system operated in passive cooling mode, and switched to active cooling mode when the air temperature inside the box was greater than 10 °C. (Results) The results showed that the velocity distribution in the active and passive dual mode box was uniform, and the air flow could reach all parts of the box. The temperature distribution in the active release mode was uniform, the temperature gradient in the box was small, and the maximum temperature difference was only 0.3 °C. The temperature gradient in the passive release mode was slightly larger and the temperature non-uniformity was higher than the active release mode. Compared with the passive refrigeration mode alone, the active and passive dual mode could effectively ensure the long-term transportation of the temperature zone below 10 °C, which was conducive to the refrigerated transportation of most fresh goods. (Conclusion) The design of active and passive dual-mode cold chain container has great potential for energy optimization, uniform flow field, stable temperature and strong practical value. [ABSTRACT FROM AUTHOR]

Copyright of Atomic Energy Science & Technology is the property of Editorial Board of Atomic Energy Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Control Theory & Applications / Kongzhi Lilun Yu Yinyong is the property of Editorial Department of Control Theory & Applications and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cotton Textile Technology is the property of Cotton Textile Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Automobile Technology is the property of Automobile Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Materials Engineering / Cailiao Gongcheng is the property of Journal of Materials Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Railway Construction Technology is the property of Railway Construction Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Corn starch-chlorogenic acid complexes were prepared under 60 °C, 70 °C, 80 °C and 90 °C, respectively. The chlorogenic acid content, complex index ( CI), crystal structure, in-vitro digestibility were studied, to investigate the effect of temperature on the formation and digestibility of corn starch-chlorogenic acid complexes during hydrothermal treatment. The results showed that as the heat temperature increased, the CI of starch increased from 4.27% to 10. 65% gradually, the chlorogenic acid content in the complexes was increased first and then decreased with a highest content of 6.13 mg/ g being prepared at 80 °C. While excessive chlorogenic acid could promote the formation of double helix structure in corn starch, it hindered the reformation of ordered crystal structures. The structural changes in corn starch-chlorogenic acid complexes as the heat temperature increased would gradually enhance their gelatinization stability and resistance to digestion, and the resistant starch (RS) content in the complexes increased from 20.49% to 30.69%. Therefore, the interaction between corn starch and chlorogenic acid could be adjusted by controlling the heat temperature, which in turn modulates the digestibility of corn starch. [ABSTRACT FROM AUTHOR]

Air handling units (AHUs) with long distance flexible film air ducts are commonly adopted in modern large-scale greenhouses for temperature controlling. To study the performance of this type of AHU, theoretical analysis and numerical simulation methods were used to discover its air supply characteristics, and a full-scale experiment was carried out to verify the correctness of the calculation model. The calculation showed that the static pressure of different cross-sections in the thin film air duct sharply decreased to 0 at the small-hole opening, where the airflow velocity increased significantly. However, this influence only exists locally and had little effect on the pressure and gas velocity fields inside the wind duct. The velocity and velocity distribution of the gas flowing out from different openings on the same section of the wind duct are basically the same. Taking the wind speed of 2.45 m/s at the inlet end of the wind duct as an example, the maximum velocity of the airflow at the opening position of the wind duct wall at 60.06 m is 5.64 m/s, located at the center of the opening and flowing outward perpendicular to the opening plane. The velocity distribution is that the center has the highest velocity, and the closer to the edge of the hole, the lower the velocity. The volum of the airflow flowing out through the openings on the wall of the wind duct along the length direction shows that the air supply remains basically constant under different inlet wind speed conditions, and the uniformity coefficient is greater than 0.92. This indicates that this type of AHU can evenly distribute airflow along the length direction, and can evenly distribute heat or cold in the large space of the greenhouse, thus providing a guarantee for maintaining a uniform temperature field in modern large greenhouses. [ABSTRACT FROM AUTHOR]

As a new type of semiconductor material, halide perovskite materials has the advantages of low cost and excellent photoelectric conversion performance. Various photoelectric devices based on the halide perovskite materials have begun to be gradually applied. Polycrystalline thin films are still the main research direction, however, they have the disadvantages of disordered morphology and many impurities. In contrast, single crystals have the characteristics of no grain boundaries and low defects. Therefore, the research based on large-size single crystals gained widely concerned. In this paper, a set of internal and external reverse temperature control cycle filtration growth devices was designed. The CH3NH3PbBr3 single crystal with a diameter of more than 60 mm was prepared by the combination of inverse temperature crystallization and seed crystal. The phase, microstructure, and optical and electrical properties of the crystal samples were studied. The crystal belongs to the cubic system with space group of Pm3m. The ultraviolet-visible absorption spectrum shows that the absorption cut-off edge is about 576 nm and the fluorescence emission spectrum peak is 552 nm. The rocking curve shows that the half width at maximum of the crystal (100) plane is 91. 42". The wafer after cutting and polishing is sensitive to photo response, and the on-off ratio is 2. 4 x 104. [ABSTRACT FROM AUTHOR]

Copyright of Packaging & Food Machinery is the property of Packaging & Food Machinery Magazine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The decline of explosive properties of emulsion explosives will seriously affect the blasting effect in the environment of low temperature. The study on the evolution law of explosive properties of the emulsion explosives in coordination with the temperature variation of the emulsion explosives presents a certain engineering application value. A series of precise temperature control devices for emulsion explosives were designed, and then the detonation velocity, the brisance, the working capacity and the overpressure of air shock wave were measured with various temperature of 25, 0, -5, -10 and -15 °C. Meanwhile, the microstructure of the emulsion explosives was characterized. The experimental results showed that when the temperature of the emulsion explosives was reduced from 25 °C to -15 °C, the detonation velocity of the explosive was reduced from 4 227 m/s to 3 291 m/s, the brisance of the explosive was reduced from 13.0 mm to 5.2 mm, the working capacity of the explosives was reduced from 323 mL to 208 mL, and the overpressure of air shock wave was reduced from 284.9 kPa to 115.8 kPa. With the decrease of the temperature of the emulsion explosives, the precipitation of ammonium nitrate crystal increased along with the partial structure failure of the emulsion particles, resulting in changes in the microstructure and declines in the explosive properties of the emulsion explosives. Low-temperature environment mostly affected the brisance of emulsion explosives, but slightly affected the detonation velocity. With the decrease of temperature, the decline amplitude of explosive properties would be accelerated. It is suggested that the design of blasting properties should be adjusted according to the decline amplitude of explosive properties. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Shanghai Jiao Tong University (1006-2467) is the property of Journal of Shanghai Jiao Tong University Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coal Science & Technology (0253-2336) is the property of Coal Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Air inflatable temperature-regulating clothing uses an air layer with locked air to replace the filling material of a traditional insulating layer. It is environmentally friendly, temperature-regulating, lightweight and portable, and of great value in cold protective clothing. Firstly, This paper introduced the products and patented technologies of inflatable temperature-regulating clothing at home and abroad. Then, it analyzed the temperature-regulating mechanism and heat transfer mechanism of inflatable temperature-regulating clothing. Thirdly, it summarized the current research status of scholars at home and abroad on the factors affecting the warmth retention of inflatable temperature-regulating clothing. The drawbacks and future development trends of air inflatable temperature-regulating clothing were proposed as well. [ABSTRACT FROM AUTHOR]

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Polyaniline (PANI), a polymer material exhibiting exceptional electrical conductivity, has garnered widespread application in electrochromic devices and supercapacitors. While PANI effectively demonstrates an electrochromic effect within the visible light band (400-780 nm), its adjustability in the near-infrared band (above 780 nm) remains limited. Consequently, its temperature control capabilities require enhancement. To address this, tungsten oxide dihydrate (WO3· 2H2O), a cathode discoloration material, was integrated with PANI to bolster its ability to regulate light transmittance in the near-infrared band. In this study, the WO3·2H2O@PANI composite film was fabricated utilizing the spin-coating method, and its surface morphology and electrochromic properties were thoroughly examined. Our findings reveal that the electrochromic performance of the WO3·2H2O@PANI composite film has been significantly improved in the near-infrared band. Furthermore, it exhibits a stronger bonding force with the ITO glass surface, thereby enhancing both its electrochemical and optical stability. [ABSTRACT FROM AUTHOR]

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Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Chinese Baijiu industry is undergoing industrial modernization. However, the key processes including Daqu processing are directly modified based on empirical knowledge, and the lack of engineering mechanisms lead to the inability of rational design. Here, this study quantitatively analyzed the heat generation and flow during Daqu solid-state fermentation, tracked and recorded the parameters during Daqu processing, simplified the biochemical reactions of the fermentation process, and built a Daqu heat balance model. Through the model, the heat generated during the whole fermentation process was transferred outside of the system through three ways: Water evaporation (54. 22% ), conduction of wall and air flow (42. 00% ), and air temperature rising ( < 1% ). The remaining heat (3. 77% ) was the cumulative heat, which was positively correlated with the temperature rise of the Daqu ( R² =0.85). It was verified that the average error of the model for the temperature change of dacquoise was 5. 05% with R² = 0. 94. Based on the model, the effect of regulating moisture parameters on the temperature of Daqu was explored, which showed the importance of moisture control for regulating the temperature during Daqu preparation. Through the preliminary exploration of the feasibility of regulating and optimizing the future production of Daqu from the perspective of mathematical modeling, the results of the study can provide theoretical support for the construction of modern fermentation process. [ABSTRACT FROM AUTHOR]

Lost circulation during drilling is a downhole problem frequently encountered in the Chuanyu area, and in part of the area, severe lost circulation encountered in complex formations can only be cured after several times of operation and with different lost circulation control techniques, resulting in high drilling cost. By analyzing the lost circulation control techniques used in the past, a one-sack temperature-control gel-type resin lost circulation material (LCM) YDFD was developed based on the principles of bridging and packing in fractures. The raw materials in producing the LCM YDFD include a high-strength equilateral tetrahedron resin as the main bridging material, a flaky resin and a thermo-set resin as the packing material, and a fiber material, and these three materials, by entanglement crosslinking, produce the final product YDFD. In lost circulation control, three models of YDFD, which are small, medium and large, are mixed in a certain ratio to combat mud losses of different rates such as mud losses into small fractures, vugs, big fractures and another type of mud loss called breathing loss. Into the LCM slurry a temperature control agent is used to regulate the time required for the LCM slurry to solidify, thereby ensuring safe operation and accurate plugging of the channels into which mud is lost. In controlling lost circulation with the YDFD LCM in the Chuanyu area, 93% mud losses are successfully brought under control in the first try. This technique is worth trying in combating mud losses in oil and gas development. [ABSTRACT FROM AUTHOR]

Aiming at the problem that the strength of cement pastes commonly used in cementing under negative temperature environment develops slowly or even stops hydration, this paper studies the slurry properties of lithium salt (TSL) -sulfoaluminate cement (SAC) slurry system and the mechanical properties of cement stone at 4 ℃ and -10 ℃, and tests the hydration temperature rise and cumulative heat release of cement. The hydration process of cement was analyzed by X-ray diffractometer (XRD), thermogravimetric analyzer (TG/DTG) and scanning electron microscope (SEM), and the feasibility of application of TSL-SAC cement system in negative temperature cementing project was demonstrated. The results show that the slurry performance of TSLSAC cement slurry system is well. When the content of TSL is 3% of SAC, the 48 h compressive strength can reach 23.01 ± 0.47 MPa at 4 ℃ and 3.98 ± 0.07 MPa at -10 ℃, which meets the requirements of cementing construction. At the same time, the hydration temperature rise and cumulative heat release of cement were effectively reduced by the introduction of temperature control materials. The maximum hydration temperature rise was reduced by 27.62%, and the maximum hydration temperature rise delay was 320.67%. The mechanism of TSL promoting the hydration reaction of SAC is that it increases the generation of gel hydration products of iron glue and aluminum glue in cement stone, promotes the growth and crystallization of AFt, forms a low crystallinity CaCO3 protective layer and reduces the carbonization of CH. TSL-SAC cement slurry has the potential of application in negative temperature cementing environment, and this study provides a certain experimental and theoretical basis for cementing in negative temperature area. [ABSTRACT FROM AUTHOR]

To improve the existing temperature field control technology for mass concrete and to apply temperature control measures more effectively using inhibitors while reducing construction cost, a regulating model was proposed. This model was based on an adiabatic temperature rise equation for concrete mixed with inhibitors of different delayed heat release times. The distribution of temperature fields for mass concrete subjected to different temperature control measures involving inhibition was investigated using the model. Specifically, under the working conditions of delayed heat release of 0 ~ 3 d, the internal temperature peak and temperature difference between the inner and outer surfaces of the mass concrete decrease continuously as the delayed heat release time increases. However, under the working conditions of delayed heat release of 5 ~ 10 d, heat accumulation in multi-layer poured concrete occurs due to the prolonged delayed heat release time. A three-day inhibition of heat release meets the temperature control objectives, For a oneday inhibition of heat release, the temperature control objectives are achieved by reducing the initial temperature of the concrete in the mold by 1 ~ 2 ℃ . In conclusion, this research introduces a new concept and method for regulating the temperature field of mass concrete. [ABSTRACT FROM AUTHOR]

Copyright of Storage & Process is the property of Tianjin Academy of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Business suits are om of the important application areas of wool woJted fabrics, but due to the requirements of their usage scenarios, they often the efffort of wearing. In response to the current sitijion of limited research on the transmission space of steam sweat in suit fabrics and suit shirt matjiing systems, based on the testing method in AATCC 201-2014 " Fabric Drying Rate Heating Plate Method", experimental designs were conducted to simulate the evaporation of steam sweat in different clothing systems under small amounts of exercise and sitting, and comparative tests were conducted on single-layer fabrics, suit+lining systems, and suit + shirt systems. The experimental results show that the addition of moisture and temperature regulating fibers can improve the evaporation rate of moisture. The closer to the skin layer, the more significant the effect of using moisture and temperature regulating fibers. Moisture and temperature regulating fibers are used from the inner layer to the outer layer, which can keep the entire moisture transmission continuous and the effect is more significant; In the comparison of single-layer fabric testing, the addition of moisture and temperature regulating fibers can increase the drying rate of the fabric by about 13% compared to ordinary wool/polyester fabrics; Compared with regular wool/polyester fabric and regular lining, both lining and fabric use a moisture and temperature control fiber suit system, which increases the drying rate by about 46. 9%. Compared with ordinary wool polyester fabric and ordinary shirt fabric system, both shirt fabric and wool polyester fabric use moisture and temperature regulating fibers, which increase the drying rate by about 51. 2% [ABSTRACT FROM AUTHOR]

Copyright of Integrated Intelligent Energy is the property of Editorial Department of Integrated Intelligent Energy and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Plastics Science & Technology / Suliao Ke-Ji is the property of Plastics Science & Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Chongqing University of Technology (Natural Science) is the property of Chongqing University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)