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Preparation of ultrathin ReS2 nanosheets and their application to Q-switched Er-doped fiber lasers Research
Junshan He, Guohua Zeng, Shaoxian Liu, Haiming Lu, Ruixian Xie, Jingjing Qi, Lili Tao, Bo Zhou,taoll@gdut.edu.cn,zhoubo@scut.edu.cn
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 3, Pages 287-436 doi: 10.1631/FITEE.2000339
Keywords： 二硫化铼；可饱和吸收体；二维材料；调Q光纤激光器
Passive mode-locked Er-doped fiber laser pulse generation based on titanium disulfide saturable absorber Research Articles
Xinxin Shang, Linguang Guo, Huanian Zhang, Dengwang Li, Qingyang Yue,huanian_zhang@163.com,qingyangyue@sdnu.edu.cn
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 5, Pages 615-766 doi: 10.1631/FITEE.2000341
Keywords： 光纤激光器；被动锁模；可饱和吸收体；二硫化钛
Wang Shukai
Strategic Study of CAE 2009, Volume 11, Issue 9, Pages 34-37
It's difficult to leach ITO feed solution and effectively recycle indium and tin. The problems can be solved by treating ITO waste with sulphuric acid and hydrochloric acid leaching-sulfide precipitation.
Keywords： ITO waste indium tin sulphuric acid and hydrochloric acid leaching-sulfide precipitation
Influence of Grinding Environment on Flotation of Sulfide Minerals
He Fayu,Sun Chuanyao,Song Lei
Strategic Study of CAE 2006, Volume 8, Issue 8, Pages 92-102
It's described the influence of grinding environment on the surface morphology and property, the chemical property of pulp and its flotation behavior of sulfide minerals at home and abroad. During grinding of sulfide minerals, the factors of mechanics, electrochemistry, and mechano-chemistry etc. , affect the surface morphology and property, the chemical property of pulp and the flotation behavior of sulfide minerals, by complicated physical, chemical and physicochemical interactions. Controlling grinding environment by changing grinding medium, adding reagents into the mill and so on can improve separation effect of flotation of sulfide minerals.
Keywords： sulfide mineral grinding environment flotation
Zhu Zuze
Strategic Study of CAE 2000, Volume 2, Issue 2, Pages 87-90
A brief review of the advance of copper smelting technology and the price fluctuations of copper products indicate that the competition of copper market depends upon the production cost relying on metallurgy technology. In order to ensure the smooth development of the copper industry in China and win competition in the world, we must persist in domestic r & D and incorporation with foreign technology for copper smelting. This paper commentes on the deficiencies of intensified oxidizing-PS convetring-pyrorefining-electrolysis processes and analyzes the feasibility and basises of combined pyrometallurgical and hydrometallurgical method. The new combined process route will be more advantageous in future competition.
Keywords： Copper industry copper sulfide concentrate low cost
Main metallogenic tectonic settings of magmatic Cu-Ni (PGE) sulfide deposits in China
Qian Zhuangzhi,Duan Jun,Feng Yanqing,Xu Gang, Zhang Jiangjiang
Strategic Study of CAE 2015, Volume 17, Issue 2, Pages 19-28
This article summarized the main metallogenic tectonic settings of the magmatic Cu-Ni (PGE) deposits in China by the regional distribution characteristics， new progresses in exploration， and new research materials. It found out four important metallogenic tectonic settings which were large igneous province， rift on craton margin or intracontinental extensional environment， post-collisional extensional environment on orogenic belt， and active continental margin or island arc. Comparing the findings with other countries， the result showed that China lacks the magmatic sulfide deposits related to greenstone belt and ophiolite belt， but the large scale mineralization in the post-collisional extensional environment on the orogenic belt is quite rare in the world. Therefore， the prospecting direction should fully consider those small mafic-ultramafic intrusions which related to the four types metallogenic tectonic settings mentioned above.
Keywords： Cu-Ni(PGE) ；magmatic sulfide deposits； metallogenic tectonic setting； main types； China
Hydrogen Sulfide Promotes Adipocyte Differentiation, Hyperplasia, and Hypertrophy Article
Richa Verma,Ming Fu,Guangdong Yang,Lingyun Wu,Rui Wang
Engineering 2023, Volume 20, Issue 1, Pages 36-48 doi: 10.1016/j.eng.2022.09.010
Hydrogen sulfide (H2S) is endogenously produced in adipocytes and fat tissues and stimulates adipogenesis. The integrated pathogenic effects of H2S on the development of obesity and the underlying mechanisms, however, have been unclear. Here, we find that a decreased endogenous H2S level lowered lipid accumulation in mouse adipocytes. Exogenous H2S treatment significantly increased the adipogenesis of primary mouse preadipocytes after six days of adipogenic induction. In the early phase of adipogenesis, H2S increased cell proliferation and prepared cells to go through hyperplasia. After H2S treatment for ten days, preadipocytes exhibited significantly greater cell surface area and diameter, indicating cell hypertrophy. Although it stimulated lipid accumulation and adipogenesis, H2S had no effect on lipolysis. With nutrition overload and high glucose/insulin incubation, H2S further stimulated glucose consumption and deteriorated adipocyte hypertrophy. H2S upregulated hyperplasia genes (CCAAT/enhancer-binding protein (C/EBPβ), cell division cycle 25 (Cdc25), minichromosome maintenance 3 (Mcm3), and cell division cycle (Cdc45)) and cyclin-dependent kinase 2 protein (Cdk2), which regulates cell proliferation. H2S also upregulated the insulin receptor β (Irβ)-activated mitogen-activated protein kinase (MAPK) and protein kinase B (Akt) pathways, leading to adipogenesis. In conclusion, H2S increases adipocyte differentiation, hypertrophy, and hyperplasia, implying that it plays a pathogenic role in obesity disorder.
Keywords： Adipogenesis Adipocytes Gasotransmitter Glucose H2S Insulin Lipid Obesity
Moving direction of magmatic conduit metallogenic system in Jinchuan Cu-Ni （PGE） sulfide deposit
Liu Meiyu,Su Shangguo and Song Chen,Cai Nan
Strategic Study of CAE 2015, Volume 17, Issue 2, Pages 73-84
By the using of geochemical methods and quantitative textural analysis，This paper studied the spatial distribution characteristics of platinum group elements in Jinchuan Ni-Cu-（PGE） sulfide deposit，discussed the dynamic behavior in the process of magma evolution，and the evolution of Jinchuan mafic-ultramafic magma .This study found that the spatial distribution of the platinum group elements showing a certain regular changes between four continuous ore bodies. Overall，there are a significant decrease in the value of Pd/Ir-Ni/Cu between the four ore bodies from west to east. Through?the analysis，the cause which effected the distribution is that the monosulfide solid solution（MSS） has experienced a process of crystallization differentiation during crystal fractionation. On the other hand，through quantitative textural analysis，found that the structure of No. 1 ore body is much more mature than No. 1 ore body，which suggested that the emplacement of the former one is much more earlier than the latter one. Integrated geochemical and magma dynamics information，finally obtained the conclusion that the moving direction of Jinchuan magma conduit system is along the strike of the intrusions from northeast to southeast.
Li Wenyuan,Zhang Zhaowei and Chen Bo
Strategic Study of CAE 2015, Volume 17, Issue 2, Pages 29-34
The theory on small intrusions forming large deposits put forward by academician Zhongli Tang was a recapitulative summary by Long-term studying of magmatic Ni-Cu sulfide deposits which related to mafic-ultramafic intrusions. And this theory got a common response by exploration industry in the world. Many mineral exploration practices have effectively illustrated that the hypabyssal and small intrusion could always form the larger ore deposits. Our study is about the mineralization of Ni-Cu sulfide deposits which related to mafic-ultramafic intrusions in the northwestern of China. In this paper，we have discussed the theory of small intrusions forming large deposits，considering that mantle magma deep part liquation and injection is the main mechanism of this theory. And another theory of magma conduit systems，may cause the local enrichment of mineral，and like that theory of small intrusions forming large deposits. After summarizes the prospecting fact of magmatic Ni-Cu sulfide deposits in the northwestern of China，we expand the scientific connotation of the theory on small intrusions forming large deposits，and make it more realistic meaningful in guiding prospecting.
Dai Junfeng,Gong Lei and Fan Lifei, Wang Yong, Zhao Binbin
Strategic Study of CAE 2015, Volume 17, Issue 2, Pages 85-96
According to the analysis and comparison with the content and geochemical characteristics of and trace element from Cu-Ni sulfide deposits between Kelatongke and Jinchuan， meanwhile， combing different tectonic setting and rock series of these two types of deposits， we study their magmatic and mineralization processes. The results show that major element of Kalatongke belongs to the tholeiitic basalt system； incompatible trace element presents as enrichment of large ion lithophile elemen(LILE) and depletion of high field strength element(HFSE)， suggesting that they are derived from the continental crust； the rare earth element (REE) presenting rich in light rare earth element (LREE)， and there is no obvious Eu anomalies， Sr and Nd isotopes indicates that the magma source is depleted asthenosphere mantle. Major element of Jinchuan deposit belongs to the tholeiitic basalts and mid ocean ridge basalt system； incompatible trace element presents as enrichment of LILE， depletion of HFSE， showing the magma suffers from contamination of crust materials or there are materials of subducted oceanic crust in the source ； the ratio of N(La)/N(Nb) and N(Zr)/N(Nb) indicating its source is derived from EMI mantle； the REE presenting enriched in LREE， the ratio of N(La)/N(Yb)， N(La)/N(Sm) and N(Gd)/N(Yb) presenting enriched in LREE； and there is no obvious Eu anomalies， Sr and Nd isotopes declaring magma derived from enriched mantle. And we also predicted the magma conduit and mineralization potential of two ore deposits by 3D geological modeling， hoped it will useful for later period exploration.
Technical Perspective of Carbon Capture, Utilization, and Storage Perspectives
Qingyang Lin, Xiao Zhang, Tao Wang, Chenghang Zheng, Xiang Gao
Engineering 2022, Volume 14, Issue 7, Pages 27-32 doi: 10.1016/j.eng.2021.12.013
Carbon dioxide (CO2) is the primary greenhouse gas contributing to anthropogenic climate change which is associated with human activities. The majority of CO2 emissions are results of the burning of fossil fuels for energy, as well as industrial processes such as steel and cement production. Carbon capture, utilization, and storage (CCUS) is a sustainability technology promising in terms of reducing CO2 emissions that would otherwise contribute to climate change. From this perspective, the discussion on carbon capture focuses on chemical absorption technology, primarily due to its commercialization potential. The CO2 absorptive capacity and absorption rate of various chemical solvents have been summarized. The carbon utilization focuses on electrochemical conversion routes converting CO2 into potentially valuable chemicals have received particular attention. The Faradaic conversion efficiencies for various CO2 reduction products are used to describe efficiency improvements. For carbon storage, successful deployment relies on a better understanding of fluid mechanics, geomechanics, and reactive transport, which are discussed in details.
Keywords： CCUS Carbon capture Carbon utilization Carbon storage Chemical absorption Electrochemical conversion Storage mechanism
Self-reliance and Innovation of Qinshan Phase Ⅱ NPP Project
Ye Qizhen,Yang Lanhe
Strategic Study of CAE 2008, Volume 10, Issue 1, Pages 23-32
The self-reliance and innovation of Qinshan nuclear power project of phase II is clecilhed.It contains new reactor core design, as well as related experimental and calculation analysis, especially for new reactor design produced fluid-induced vibration model test, theoretical analysis and testing in-built reactor; aiming at two-loop NSSS a series improvement made for safety systems and related safety analysis to enhance their reliability and redundancy; according to specialty of two-loop NSSS an optimization made for NPP parameters and design of related equipments, for the purpose to make the output of NPP maximal; design of main reactor building and T-G building also improved according to characteristics of two-loop NSSS and site conditions. CRDM and refueling machine are researched and manufactured on base of self-reliance, their performance are better than design requirements, large portion of key equipments are localized through different way. In construction first time realized the integrated erection of containment dome. During the commissioning non-nuclear steam driving of T-G set, as well as 500 kV high voltage rising using emergent diesel generator, etc. are carried out. In period of operation still continuous innovation and improvement are made, in oader to keep the good record of operation.
Keywords： nuclear power project phase Ⅱ
Experiences and Lessons From the Construction of Erlang Shan Tunnel
Zheng Daofang
Strategic Study of CAE 2000, Volume 2, Issue 1, Pages 62-67
Erlangshan Mountain lies at the contiguous area of Tianquan county, Ya´an Prefecture, Sichuan Province and Luding County, Ganzi Zang Autonomous State. The Erlangshan mountainous area with complicated geology and dangerously steep mountains is characterized by harsh weather such as storm, heavy fog, snow, ice, strong wind and various frequently occuring natural disasters, such as landslide, rock falling and debris flow, and therefore the highway in this area is low in standard and poor in condition, resulting in serious traffic jam and frequent accidents, which threaten the safety of traffic. This paper describes the scheme study of disease countermeasures on the Erlangshan section of Sichuan - Tibet Highway and the project comparison of line alternatives, and presents the reasons of building a tunnel in the area, the tunnel alignment and the problems occurred in the construction. The dialectical relationships between a tunnel and its linking works, between a key project and an ordinary project are profoundly analyzed and the related experinences and lessons are also summarized, which will enlighten both the organizers and the designers on the construction of a project.
Keywords： Erlangshan tunnel construction experiences
Binary neural networks for speech recognition Regular Papers
Yan-min QIAN, Xu XIANG
Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 5, Pages 701-715 doi: 10.1631/FITEE.1800469
Recently, deep neural networks (DNNs) significantly outperform Gaussian mixture models in acoustic modeling for speech recognition. However, the substantial increase in computational load during the inference stage makes deep models difficult to directly deploy on low-power embedded devices. To alleviate this issue, structure sparseness and low precision fixed-point quantization have been applied widely. In this work, binary neural networks for speech recognition are developed to reduce the computational cost during the inference stage. A fast implementation of binary matrix multiplication is introduced. On modern central processing unit (CPU) and graphics processing unit (GPU) architectures, a 5–7 times speedup compared with full precision floatingpoint matrix multiplication can be achieved in real applications. Several kinds of binary neural networks and related model optimization algorithms are developed for large vocabulary continuous speech recognition acoustic modeling. In addition, to improve the accuracy of binary models, knowledge distillation from the normal full precision floating-point model to the compressed binary model is explored. Experiments on the standard Switchboard speech recognition task show that the proposed binary neural networks can deliver 3–4 times speedup over the normal full precision deep models. With the knowledge distillation from the normal floating-point models, the binary DNNs or binary convolutional neural networks (CNNs) can restrict the word error rate (WER) degradation to within 15.0%, compared to the normal full precision floating-point DNNs or CNNs, respectively. Particularly for the binary CNN with binarization only on the convolutional layers, the WER degradation is very small and is almost negligible with the proposed approach.
Keywords： Speech recognition Binary neural networks Binary matrix multiplication Knowledge distillation Population count
Improved binary artificial bee colony algorithm Research Articles
Rafet Durgut,rafetdurgut@karabuk.edu.tr
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 8, Pages 1080-1091 doi: 10.1631/FITEE.2000239
Keywords： 人工蜂群；二进制优化；无容量限制的设施选址位置问题（UFLP）
Title Author Date Type Operation
Preparation of ultrathin ReS2 nanosheets and their application to Q-switched Er-doped fiber lasers
Junshan He, Guohua Zeng, Shaoxian Liu, Haiming Lu, Ruixian Xie, Jingjing Qi, Lili Tao, Bo Zhou,taoll@gdut.edu.cn,zhoubo@scut.edu.cn
Journal Article
Passive mode-locked Er-doped fiber laser pulse generation based on titanium disulfide saturable absorber
Xinxin Shang, Linguang Guo, Huanian Zhang, Dengwang Li, Qingyang Yue,huanian_zhang@163.com,qingyangyue@sdnu.edu.cn
Journal Article
Recycling indium and tin by treating ITO waste with sulphuric acid and hydrochloric acid leaching-sulfide precipitation
Wang Shukai
Journal Article
Influence of Grinding Environment on Flotation of Sulfide Minerals
He Fayu,Sun Chuanyao,Song Lei
Journal Article
Meeting Future Challenge in Copper Industry——Considerations on Treatment of Copper Sulfide Concentrate at Low Cost
Zhu Zuze
Journal Article
Main metallogenic tectonic settings of magmatic Cu-Ni (PGE) sulfide deposits in China
Qian Zhuangzhi,Duan Jun,Feng Yanqing,Xu Gang, Zhang Jiangjiang
Journal Article
Hydrogen Sulfide Promotes Adipocyte Differentiation, Hyperplasia, and Hypertrophy
Richa Verma,Ming Fu,Guangdong Yang,Lingyun Wu,Rui Wang
Journal Article
Moving direction of magmatic conduit metallogenic system in Jinchuan Cu-Ni （PGE） sulfide deposit
Liu Meiyu,Su Shangguo and Song Chen,Cai Nan
Journal Article
The theory on small intrusions forming large deposits and its exploration significance—Taking for magmatic Ni-Cu sulfide deposits example in the northwestern of China
Li Wenyuan,Zhang Zhaowei and Chen Bo
Journal Article
A comparison of geology geochemical characteristics between the Kalatongke and the Jinchuan Cu-Ni sulfide deposit and its significance
Dai Junfeng,Gong Lei and Fan Lifei, Wang Yong, Zhao Binbin
Journal Article
Technical Perspective of Carbon Capture, Utilization, and Storage
Qingyang Lin, Xiao Zhang, Tao Wang, Chenghang Zheng, Xiang Gao
Journal Article
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