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传统的棉籽仁壳分离系统存在仁壳分离效果不佳，进而影响棉籽蛋白产品中蛋白质含量的问题，为此对传统棉籽仁壳分离系统进行了改造。通过对剥壳前光棉籽进行调质处理，优化仁壳分离工艺，可将棉仁含壳率由10%～15%降至2%～4%，棉壳含仁率由0.5%～0.8%降至0.1%～0.3%，通过浸出（脱脂脱酚）后可得到蛋白质含量为60%～65%的棉籽蛋白产品。The traditional cottonseed kernel husk separation system has the problem of poor separation effect, which affects the protein content in cottonseed protein. Therefore, the traditional cottonseed kernel husk separation system was modified. Through the conditioning treatment of cottonseed before hulling and the optimization of the separation process of kernel husk separation, the content of husk in kernel can be reduced from 10%-15% to 2%-4%, the kernel content in husk can be reduced from 0.5%-08% to 0.1% - 0.3%, and the cottonseed protein products with protein content of 60%-65% can be obtained after defatting and degossypol.

目的 探讨应用Trevo ProVue支架对前循环脑动脉急性闭塞进行支架取栓治疗的安全性及有效性。 方法 回顾本中心13例采用Trevo ProVue支架取栓治疗前循环脑动脉急性闭塞患者的临床资料。应 用改良脑梗死溶栓（modified thrombolysis in cerebral infarction，mTICI）分级评估闭塞血管再通情 况，比较患者术前及术后24 h美国国立卫生研究院卒中量表（National Institute of Health stroke scale， NIHSS）评分。并于术后90 d进行临床随访，采用改良Rankin量表（modified Rankin scale，mRS）评分评 估患者独立生活情况。 结果 13例患者中，术后即刻8例获得mTICI分级2b～3级再通，4例mTICI分级2a级再通，1例血管无法开 通mTICI分级0级。患者入院时NIHSS评分15.0（9.5～21.0）分，术后24 h NIHSS评分7.0（5.5～16.0）分， 比较差异具有统计学意义（t =2.38，P =0.035）。90 d临床随访，mRS评分0～2分6例（46.15%），3分2 例，4分2例，5分1例，6分（死亡）2例。 结论 应用Trevo ProVue支架取栓治疗前循环脑动脉急性闭塞是安全、有效的。 Abstract: Objective To assess the safety and effectivity of mechanical thrombectomy using Trevo ProVue stents for acute arterial occlusion in proximal anterior cerebral circulation. Methods This retrospective study included 13 consective patients with acute arterial occlusion in anterior cerebral circulation and treated by thrombectomy using Trevo ProVue stents. Revascularization status of the occluded arteries were evaluated using modified thrombolysis in cerebral infarction (mTICI) scale. The National Institute of Health stroke scale (NIHSS) score of all patients before operation and 24 hours after operation were compared. The functional outcome at 90 days were assessed using modified Rankin scale (mRS) score. Results Of 13 patients, 8 cases reached successful reperfusion (mTICI 2b/3), 4 cases reached a recanalization of mTICI 2a, and the occluded artery couldn’t be opened only in 1 case. The NIHSS score of patients on admission was 15.0 (9.5-21.0), the NIHSS score was 7.0 (5.5-16.0) 24 hours after operation, and there was significant difference between the two scores (t =2.38, P =0.035). The clinical follow-up results at 90 days showed that six patients had a mRS score of 0-2, four patients had a mRS score of 3-4, one patient had a mRS score of 5, and two patients had a mRS score of 6. Conclusions Mechnical thrombectomy with Trevo ProVue stents for acute arterial occlusion in anterior cerebral circulation is safe and effective.

抑郁症患者的行为表征反映其临床特征及病情状况，有利于病情诊断。当前抑郁症领域词典在构建时忽略了抑郁症文本中的行为特征与患者病况的关联性，导致词典领域信息不足。为此，提出面向抑郁症行为特征的领域词典构建方法，拓展了领域词典涵盖的情感表示。首先，采用TF-IDF算法构建情感类和行为类种子词集，通过PMI计算现有词典与情感类种子词的相似度获得情感类词集；其次，基于行为特征与患者病况的对应关系，设置行为类种子词标签，再将种子词与抑郁症文本输入WoBERT生成动态词向量，计算二者的相似度得到候选词集；然后，基于词间相似度构建语义图，并使用标签传播算法获得行为特征词集；最后，收集微博负面情感表情符号构建表情符号词集，合并情感类词集、行为特征词集与表情符号词集，得到中文抑郁症领域词典。实验结果表明，构建的词典可以提升抑郁症文本分类效果。

Granite residual soil, distributed widespreadly in China Southeast coastal region, is a commonly soil mass used for the urban construction projects. Using readily available the local soils as filling materials for high-fill embankments and slopes is an most costing economic strategy. For high-fill slopes, using geogrid reinforced soil technology can improve soil shear strength and enhance the slope stability. Firstly, direct shear friction tests were done to investigate the frictional characteristics of the reinforcement-soil interface. Furthermore, in order to study the impacts of dry densities and number of reinforcement layers on the shear strengths of reinforced granite residual soil, triaxial consolidation and drainage shear tests were used to investigate shear strength and deformation of both saturated granite residual soil and saturated reinforced granite residual soil separately. The testing results show as follows. The specimen normalized strength coefficients corresponded to different reinforcement-layer number are overall greater than unity, this shows that embedded reinforcing geogrid into the soil body can both enhance soil shear strength and decrease soil body deformation effectively. The normalized strength coefficient does not have a linear relation with reinforcing-layer number increasing, and effect of the second reinforcement layer tends to be weaken on soil shear strength increasing. The normalized strength coefficient increases as dry density deceasing and reduces as confining pressure increasing. The geogrid primarily enhances soil shear strength through increasing the apparent cohesion of reinforced soil obviously, the quasi-cohesion increment calculating formula is proven to be reasonable for the saturated reinforced granite soil through comparing theoretical calculating results against test results, and the second reinforcement layer only contributes slightly increasing to the quasi-cohesion increment. [ABSTRACT FROM AUTHOR]

With the ongoing depletion of surface and shallow mineral resources, future mining efforts must inevitably venture deeper. As mining depth increases, operations face a "three high and one disturbance" environment, severely affecting normal production activities. Therefore, pressure management has become an essential prerequisite for mine production. The study consolidates current research achievements in 3 areas, including basic theory, monitoring methods, and ground pressure management, to provide foundational guidance for practical mining operations. Basic theory explores the internal mechanical mechanisms of ground pressure activities through dynamic-static load combinations and temperature seepage stress multi-field coupling effects. Monitoring methods discuss the deployment of stress-strain monitoring systems and microseismic monitoring systems, where static stress-strain monitoring and dynamic real-time microseismic monitoring work in tandem to effectively monitor pressure activities during production. Pressure management measures cover pressure regulation methods and support systems, clarifying current issues in fundamental theories and prevention measures for deep mine pressure and guiding future research to promote intensive deep mining [ABSTRACT FROM AUTHOR]

Copyright of Nonferrous Metals (Mineral Processing Section) is the property of Beijing Research Institute of Mining & Metallurgy Technology Group 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.)

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Objective To explore the role of long non-coding RNA smad7(Linc-smad7)in invasion and migration of pancreatic cancer(PC)cells and its mechanisms. Methods The expression level of Linc-smad7 in PC tissues and cell lines was detected by qRT-PCR assays. Transwell assays were performed to observe the effect of Linc-smad7 overexpression on the migration and invasion abilities of PaCa-2 cells. Luciferase reporter analysis was made to detect the direct binding effect of Linc-smad7 on miR-125b and miR-125b on Sirtuin1(SIRT1). qRT-PCR assays were used to detect the regulatory effect of Linc-smad7 on miR-125b expression in PaCa-2 cells. qRT-PCR and Western blotting assays were used to detect the regulatory effect of miR-125b on SIRT1 expression. Results Linc-smad7 was significantly increased in PC tissues and cell lines. Paca-2 cells with overexpressed Linc-smad7 showed higher migration and invasion abilities, while miR-125b expression was decreased. After the expression of miR-125b was increased, the expression of SIRT1 was decreased significantly. Luciferase reporter assays results suggested that Linc-smad7 directly targeted with miR-125b, and miR-125b directly bound with SIRT1. Increased Linc-Smad7 or decreased miR-125b could reverse the effect of SIRT1 inhibition on invasion and migration of PaCa-2 cells. Conclusion Linc-smad7 promotes invasion and migration of PaCa-2 cells through miR-125b/SIRT1 axis. [ABSTRACT FROM AUTHOR]

Copyright of Electric Power Automation Equipment / Dianli Zidonghua Shebei is the property of Electric Power Automation Equipment Press 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.)

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Copyright of Journal of National University of Defense Technology / Guofang Keji Daxue Xuebao is the property of NUDT Press 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 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.)

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Practice and innovation are the two key points in talent cultivation. Based on the talent cultivation objectives of Liaocheng University, an applied local university, and the results of the analysis of the current delivery of comprehensive organic chemistry experiments, we explored the progress of teaching reform in our college. We aimed to reform the process in order to stimulate students' participation in chemical science exploration. Moreover, to improve the quality of teaching, we organized innovative experimentation, based on our teachers' scientific research direction, to convert research achievements into practical teaching. These experiments could help to inspire students to explore science more dynamically and strengthen their scientific research thinking ability. [ABSTRACT FROM AUTHOR]

In response to the problem of water coming out of the formation when natural gas wells are extracted, which leads to a significant decrease in gas well production and an increase in energy consumption for gas extraction.The results show that when the concentration of nanoemulsion is 60%,the double sparse effect is better. FTIR and XRD were used to characterize the structure before and after the nanoemulsion and quartz sand, and the water and oil control rate of modified quartz sand were investigated.Self-priming experiments show that compared with unmodified quartz sand, nanoparticle modified quartz sand shows good water control and oil control performance, with a water control rate of 97.4% and an oil control rate of 87.6% at 3 min.Blocking experiments show that the double sparse quartz sand in oil and water blocking rate is 87% and 89% respectively. [ABSTRACT FROM AUTHOR]

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Copyright of China Rural Water & Hydropower is the property of China Rural Water & Hydropower 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 Forest Engineering is the property of Forest 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.)

In order to solve the problem of asphaltene deposition in the process of heavy oil production, the physical properties of wellbore sediments in Tahe oilfield were analyzed. An emulsion dispersion inhibitor with low toxicity and environmental protection was developed. The mechanism of dispersion inhibitor was discussed. The results showed that when the oil phase dispersant in the emulsion system was RJY200 and the inhibitor was dodecyl phenol,the inhibition rate was above 90% ;when dodecylbenzene sulfonic acid: $20 is 7:3,the lotion system remains stable after standing for 7 d at room temperature. The X-ray diffraction and scanning electron microscopy before and after the addition of asphaltene dispersion inhibitor were studied. Finally, it is concluded that the mechanism of asphaltene dispersion inhibitor is mainly through hydrogen bonding, stacking, etc., adsorbing and embedding into asphaltene molecular layers, weakening the polarity of asphaltene molecules, dispersing the aggregation structure of planar stacking, and inhibiting the production of asphaltene deposits. [ABSTRACT FROM AUTHOR]

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Copyright of Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao is the property of Chinese Journal of Applied Ecology 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.)

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Fluoride is one of the important trace elements of human life and health. A proper amount of fluoride is beneficial to health. Excessive intake of fluoride will lead to dental fluorosis, bone fluorosis and urolithiasis, and serious excessive intake will affect the human central nervous system, endocrine hormone levels and reproductive system. The same lack of fluorine can also cause dental caries, Kaschin - beck disease signs and osteoporosis symptoms and cause hematopoietic dysfunction. Due to the chemical characteristics of fluorine, the forms of fluorine in the natural environment are very complex, and the transformation between different forms needs further study. How to quickly and accurately determine the content of fluorine in soil, rocks and minerals is of great significance for evaluating regional geochemical behavior and preventing fluorine-related diseases in humans. In this paper, the research progress of fluorine analysis and testing technology in soil, rocks and minerals in recent years is described. The methods, reagents and processes of sample pretreatment are summarized. The matrix correction, interference control, performance and application status of d ifferent testing methods are reviewed. In order to ensure the accuracy and reliability of the test results, it is necessary to eliminate the interference of metal cation, matrix effect and particle size validity, select the appropriate pretreatment and detection technology, reduce the detection limit, and constantly improve the accuracy and precision of the test. At present, the commonly used pretreatment methods mainly include pressed powder pellet, fusion, steam distillation, high temperature combustion hydrolysis, alkali fusion and acid dissolution. Among them, the pressed powder pellet method is simple, employs nondestructive analysis, has high sample preparation efficiency, and can meet the requirements of pretreatment of fluorine in large quantities of soil. The fusion method can effectively reduce the particle size effect and mineral effect, but different matrix samples need to use different oxidants, the preparation process is complicated, and requires high experience of the sample maker. Steam distillation and high temperature combustion hydrolysis are mainly used in rock sample treatment. The interference of metal ions can be effectively reduced by steam distillation or high temperature combustion hydrolysis. The test results of the samples treated by the alkali fusion method are stable and widely used, but there is metal ion interference, which leads to low fluorine test results. The acid dissolution method is used mainly for the decomposition of some specific ore samples, such as phosphate ore, and is rarely used at present. The commonly used determination methods include the ion selective electrode method, ion chromatography, XRF method, spectrophotometry, colorimetric method and liquid chromatography. Among them, the ion selective electrode method is mature and widely used because of its high accuracy and good stability. The detection limit of ion chromatography is low, but the test efficiency is low. X-ray fluorescence spectrometry uses lossless injection, simple environmental protection and can measure multiple elements at the same time. The colorimetric method is not accurate enough, the stability of the method is poor, the analysis steps are more complicated, and it is not suitable for the analysis of daily samples. Liquid chromatography is rarely used at present because of the expensive pretreatment equipment. At present,the alkali fusion method (accounting for 26%) is widely used as the most important pretreatment means, but it has many shortcomings, such as large reagent consumption, long process, complicated steps and cationic interference. Further research and practice are needed to optimize testing techniques and methods. The high temperature combustion hydrolysis method (accounting for 13%) and steam distillation method (accounting for 18%) can reduce cationic interference, but their cumbersome steps and special expensive equipment are currently used less. The ion selective electrode method accounted for more than one third of the test methods. Currently, the pre- treatment method using alkali fusion - ion selective electrode method is one of the most effective test technologies for the determination of fluorine content in soil, rocks and minerals. Pressed powder pellet method (accounting for 17%) has potential research value because of its unique nondestructive injection, simple, fast and environmental protection, and the matching XRF method ( accounting for 29%) can realize multi - element combined measurement, which has significant advantages in stability and precision. The future research direction of fluorine determination by X-ray fluorescence spectrometry will be how to reduce the detection limit of the method and eliminate the particle size effect and mineral effect. Other analysis and testing techniques are not recommended because of cumbersome procedures, expensive pre-treatment equipment, only certain types of samples can be processed, and limitations of testing methods. As fluorine is a light element and its occurrence forms are complex and diverse, it is necessary to select appropriate analysis and testing techniques according to the characteristics of sample types. The main research directions of fluorine analysis and testing technology in soil, rocks and minerals and pretreatment methods are focused on non-destructive analysis of samples, safety and environmental protection, rapid and other aspects, and the main research directions of testing technology are focused on the establishment of multi-element simultaneous determination. In conclusion, the determination of fluorine in soil, rocks and minerals by pressed powder pelletX-ray fluorescence spectrometry has important research value. [ABSTRACT FROM AUTHOR]

The sodium-type carboxyl cop per-loaded functional fiber was prepared by chemical modification and loaded w让h metal copper, and the purification effect of the functional fiber on the adsorption of methyl mercaptan by the dynamic adsorption method was explored・ The kinetic behavior of fiber adsorption of methyl mercaptan under different influencing factors (pH value, initial concentration of methyl mercaptan, reaction bed temperature) was investigated, and the adsorption mechanism of functional fiber was revealed by characterization methods such as SEM・ The result showed that the removal rate of methyl mercaptan by functional fiber reaches 99・ 99% ・ Under the conditions of 214. 73 mg/m3 of methyl mercaptan, 30 °C and pH value of 12.54, the adsorption capacity of functional fiber to methyl mercaptan is the highest, reaching 1.61 mg/g, the adsorption conforms to the quasi-first-order kinetic modeL Secondary regeneration did not affect the adsorption and purification performance of sodium carboxylate cop per-loaded fibers for methyl mercaptan. [ABSTRACT FROM AUTHOR]

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.)

A self-degrading microgel was prepared by copolymerizing polyethylene glycol diacrylate (PEGDA) with acrylamide (AM) and acrylic acid (AA) as a cross-linking agent. The synthesis conditions of the microgel were optimized to investigate the effects of various factors on the water absorption properties and self-degrading properties of the microgel. The results showed that the mass fraction of microgels synthesized was 0.05% PEG600DA, 0.5% ammonium persulfate, 25% AA and 75% AM, the reaction temperature was 65 ℃, and the reaction time was 7 h. The water absorption multiplier of microgels decreased with the increase of monovalent and divalent ion concentration, and the highest water absorption multiplier was nearly 800 g/g in pure water at 50 ℃. The number average molecular weight of Mn=2.9×105g/mol was measured by gel chromatography (GPC), which indicated that the microgels could be completely degraded. [ABSTRACT FROM AUTHOR]