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Research on Statistical Accounting Methods for Ecological Civilization in China

Shi Qingyan and Zhou Jing

Strategic Study of CAE 2017, Volume 19, Issue 4, Pages 67-73 doi: 10.15302/J-SSCAE-2017.04.011

Abstract:

The fundamental work in ecological civilization construction begins with the creation of an accounting and statistical system that can provide reliable data support for the purpose of monitoring, evaluation, and decision-making. Although there are data on the resources and environment of China, they cannot be effectively integrated into a unified framework due to the lack of a top-level accounting and statistical framework of ecological civilization. Considering the actual demands of ecological civilization construction, this study analyzes the problems that exist in the accounting and statistical system of ecological civilization in China and constructs a statistical indicator system and an accounting framework of ecological civilization. Further, it gives suggestions for the improvement of the accounting and statistical system of ecological civilization in China.

Keywords： ecological civilization SEEA2012-CF statistical system accounting framework natural resources balance

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>In situ growth of phosphorized ZIF-67-derived amorphous CoP/Cu₂O@CF electrocatalyst

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10, Pages 1430-1439 doi: 10.1007/s11705-023-2320-1

Abstract: -67) to generate amorphous cobalt phosphide/ZIF-67 heterojunction on a self-supporting copper foam (CFThe needle-leaf like copper hydroxide was anchored on CF surface, which acted as implantation to growThe intermediate product was phosphorized to obtain final electrocatalyst (CoP/Cu₂O@CF) withThe electrochemical measurement proved that CoP/Cu₂O@CF catalyst exhibited excellent HER activityThis work illustrates the efficient HER activity of CoP/Cu₂O@CF catalyst, which will act as

Keywords： CoP/Cu₂O@CF electrocatalyst phosphorization HER DFT

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Process simulation and economic analysis of reactor systems for perfluorinated compounds abatement without HF effluent

Boreum Lee,Sunggeun Lee,Ho Young Jung,Shin-Kun Ryi,Hankwon Lim

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 4, Pages 526-533 doi: 10.1007/s11705-016-1590-2

Abstract: New and efficient reactor systems were proposed to treat perfluorinated compounds via catalytic decomposition. One system has a single reactor (S-1), and another has a series of reactors (S-2). Both systems are capable of producing a valuable CaF and eliminating toxic HF effluent and their feasibility was studied at various temperatures with a commercial process simulator, Aspen HYSYS . They are better than the conventional system, and S-2 is better than S-1 in terms of CaF production, a required heat for the system, natural gas usage and CO emissions in a boiler, and energy consumption. Based on process simulation results, preliminary economic analysis shows that cost savings of 12.37% and 13.55% were obtained in S-2 at 589.6 and 621.4 °C compared to S-1 at 700 and 750 °C, respectively, for the same amount of CaF production.

Keywords： perfluorinated compounds (PFCs) CF₄ process simulation economic analysis

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Personalized topic modeling for recommending user-generated content Article

Wei ZHANG, Jia-yu ZHUANG, Xi YONG, Jian-kou LI, Wei CHEN, Zhe-min LI

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 5, Pages 708-718 doi: 10.1631/FITEE.1500402

Abstract: User-generated content (UGC) such as blogs and twitters are exploding in modern Internet services. In such systems, recommender systems are needed to help people filter vast amount of UGC generated by other users. However, traditional rec-ommendation models do not use user authorship of items. In this paper, we show that with this additional information, we can significantly improve the performance of recommendations. A generative model that combines hierarchical topic modeling and matrix factorization is proposed. Empirical results show that our model outperforms other state-of-the-art models, and can provide interpretable topic structures for users and items. Furthermore, since user interests can be inferred from their productions, rec-ommendations can be made for users that do not have any ratings to solve the cold-start problem.

Keywords： User-generated content (UGC) Collaborative filtering (CF) Matrix factorization (MF) Hierarchical topic

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Introduction to the special issue on the 2012 EUCOMES European Conference on Mechanism Science

Marco CECCARELLI, Fernando VIADERO

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1, Pages 1-2 doi: 10.1007/s11465-013-0368-1

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New Year’s Message

Yi QIAN

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 1, Pages 1-1 doi: 10.1007/s11783-012-0398-7

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Social insurance for occupational diseases

Hengjin Dong, Shengnan Duan, Yuan Wu, Jing Wang, Xujun Ye

Frontiers of Medicine 2012, Volume 6, Issue 2, Pages 221-223 doi: 10.1007/s11684-012-0187-5

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MicroRNAs and lung cancers: from pathogenesis to clinical implications

Ji Qi, David Mu

Frontiers of Medicine 2012, Volume 6, Issue 2, Pages 134-155 doi: 10.1007/s11684-012-0188-4

Abstract:

Lung cancer is the leading cause of cancer-related deaths in the US and worldwide. Better understanding of the disease is warranted for improvement in clinical management. Here we summarize the functions of small-RNA-based, posttranscriptional gene regulators, i.e. microRNAs, in the pathogenesis of lung cancers. We discuss the microRNAs that play oncogenic as well as tumor suppressive roles. We also touch on the value of microRNAs as markers for diagnosis, prognosis and the promising field of microRNA-based novel therapies for lung cancers.

Keywords： lung biology lung cancer microRNA

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Mechanisms and impacts of chromosomal translocations in cancers

Jing H. Wang

Frontiers of Medicine 2012, Volume 6, Issue 3, Pages 263-274 doi: 10.1007/s11684-012-0215-5

Abstract:

Chromosomal aberrations have been associated with cancer development since their discovery more than a hundred years ago. Chromosomal translocations, a type of particular structural changes involving heterologous chromosomes, have made a critical impact on diagnosis, prognosis and treatment of cancers. For example, the discovery of translocation between chromosomes 9 and 22 and the subsequent success of targeting the fusion product BCR-ABL transformed the therapy for chronic myelogenous leukemia. In the past few decades, tremendous progress has been achieved towards elucidating the mechanism causing chromosomal translocations. This review focuses on the basic mechanisms underlying the generation of chromosomal translocations. In particular, the contribution of frequency of DNA double strand breaks and spatial proximity of translocating loci is discussed.

Keywords： DNA double strand breaks chromosomal translocations genomic instability spatial proximity carcinogenesis

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Individualized medicine, health medicine, and constitutional theory in Chinese medicine

Qi Wang

Frontiers of Medicine 2012, Volume 6, Issue 1, Pages 1-7 doi: 10.1007/s11684-012-0173-y

Abstract:

The patterns of modern science and changes in the medical model can result in the transformation of the current state of individualized and health medicines into being the primary trend in medical development. Chinese and Western medical systems are dissimilar in terms of value orientations, thinking style, and research directions because of their different historical and cultural backgrounds. Individualized treatment in modern medicine is mainly established based on individual genome information and the differences in mononucleotide polymorphi-sms. However, such treatment method is expensive, creates an uncertain genetic marker, and leads to different result interpretations, among other problems. The Chinese constitutional theory developed in the 1970s expresses the principle behind Chinese health medicine and individual treatment and provides the corresponding methods. The Chinese constitutional theory divides the constitution of the Chinese population into nine categories based on established classification criteria. It promotes the study of the relationship of each constitution to diseases and Chinese medicine preparation toward adjusting the constitution and preventing diseases. The theory also provides methods and tools for individualized treatment. Constitution identification shows the direction and provides the core technology for the evaluation of the health status. By combining the developments in modern biotechnology, new diagnostic techniques and treatment models of constitution-differentiation, disease-differentiation, and syndrome-differentiation can be established for the development of individualized Chinese medicine treatment and health medicine for the international medical community.

Keywords： individualized medicine health medicine constitutional theory in Chinese medicine

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Evolutionary engineering of

Jixian GONG, Nan DUAN, Xueming ZHAO

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2, Pages 174-178 doi: 10.1007/s11705-012-1276-3

Abstract: Evolutionary engineering is a novel whole-genome wide engineering strategy inspired by natural evolution for strain improvement. Astaxanthin has been widely used in cosmetics, pharmaceutical and health care food due to its capability of quenching active oxygen. Strain improvement of , one of the main sources for natural astaxanthin, is of commercial interest for astaxanthin production. In this study a selection procedure was developed for adaptive evolution of strains under endogenetic selective pressure induced by additive in environmental niches. Six agents, which can induce active oxygen in cells, were added to the culture medium respectively to produce selective pressure in process of evolution. The initial strain, 2-1557, was mutagenized to acquire the initial strain population, which was then cultivated for 550 h at selective pressure and the culture was transferred every 48h. Finally, six evolved strains were selected after 150 generations of evolution. The evolved strains produced up to 48.2% more astaxanthin than the initial strain. Our procedure may provide a promising alternative for improvement of high-production strain.

Keywords： evolutionary engineering astaxanthin strain improvement

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Special issue on the Asian Congress on Biotechnology 2011

Bang-Ce YE

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2, Pages 125-125 doi: 10.1007/s11705-012-1291-4

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Treatability aspects of urban stormwater stressors

Anthony N. TAFURI, Richard FIELD

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5, Pages 631-637 doi: 10.1007/s11783-012-0420-0

Abstract: Pollution from diffuse sources (pollution from contaminants picked up and carried into surface waters by stormwater runoff) has been identified as a significant source of water quality problems in the U.S. scientists and engineers continue to seek solutions that will allow them to optimize existing technologies and develop new ones that will provide the best possible protection to people, wildlife, and the environment. This paper addresses the various pollutants or stressors in urban stormwater, including flow (shear force), pathogens, suspended solids/sediment, toxicants (organic and metals), nutrients, oxygen demanding substances, and coarse solids. A broad overview of the pollutants removed and the removal mechanisms by and of conventional best management practices (BMPs) is also presented. The principal treatment mechanisms of conventional wet ponds, vegetative swales/buffer strips, and wetlands are sedimentation and filtration. These mechanisms have the capability to remove significant amounts of suspended solids or particulate matter and are a vital component of strategies to reduce pollutant loads to receiving waters. In addition, because most of the nation’s receiving water violations are caused by pathogen indicator bacteria, it is of utmost importance that research efforts address this problem. Further research is also needed on the treatment of emerging contaminants in BMPs and on the costs and affects of maintenance and maintenance schedules on the long-term performance of BMPs.

Keywords： stormwater wet weather flow urban runoff

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A thermodynamic study of the removal of HCl and H

Joseph LEE, Bo FENG

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1, Pages 67-83 doi: 10.1007/s11705-011-1162-4

Abstract: Advanced integrated-gasification combined-cycle (IGCC) and integrated-gasification fuel cell (IFGC) systems require high-temperature sorbents that are capable of removing hydrogen chloride and hydrogen sulfide from coal derived gases to very low levels. HCl and H S are highly reactive, corrosive, and toxic gases that must be removed to meet stringent environmental regulations, to protect power generation equipment and to control the emissions of contaminants. The thermodynamic behavior of 13 sorbents for the removal of HCl and H S under various conditions including: initial toxic gas concentration (1–10000 ppm), operating pressure (0.1–11 Mpa), temperature (300 K–1500 K), and the presence of H O were investigated. The correlation between HCl and H S was also examined. Thermodynamic calculations were carried out for the reactions of the 13 sorbents using a FactSage 5.2 software package based on free energy minimization. The sorbents, Na CO , NaHCO , K CO , and CaO are capable of completely removing chlorine at high temperatures (up to ~1240 K) and at high pressures. Water vapor did not have any significant effects on the dechlorination capability of the sorbents. Nine of the sorbents namely; Cu O, Na CO , NaHCO , K CO , CaO, ZnO, MnO, FeO, and PbO, were determined to have great potential as desulfurization sorbents. Cu O and ZnO had the best performance in terms of the optimum operating temperature. The addition of water vapor to the reactant gas produces a slightly detrimental effect on most of the sorbents, but FeO exhibited the worst performance with a reduction in the maximum operating temperature of about 428 K. The dechlorination performance of the alkali sorbents was not affected by the presence of H S in the reactions. However, the desulfurization capability of some sorbents was greatly affected by the presence of HCl. Particularly, the performance of Cu O was significantly reduced when HCl was present, but the performance of FeO improved remarkably. The thermodynamic results gathered are valuable for the developments of better sorbents.

Keywords： syngas cleaning sorbent desulfurization dechlorination

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Immobilized

Pei MA, Dan ZHANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 4, Pages 498-508 doi: 10.1007/s11783-012-0429-4

Abstract: To investigate the potential use of ( ) residue for Cd adsorption, poly alcohol Na alginate (PVA) was applied to immobilize it. The parameters including contact time, pH, adsorbent dosages, and coexisting metal ions were studied. The suitable pH for immobilized was 4–7 wider than that for raw (pH 6–7). In the presence of Pb concentration varying from 0 to 30 mg·L , the Cd adsorption ratios declined by 6.71% and 47.45% for immobilized and raw , respectively. While, with the coexisting ion Cu concentration varied from 0 to 30 mg·L , the Cd adsorption ratios declined by 12.97% and 50.56% for immobilized and raw , respectively. The Cd adsorption isotherms in single–metal and dual-metal solutions were analyzed by using Langmuir, Freundlich, and Dubinin–Radushkevich models. The Cd adsorption capacities ( ) in single-metal solution were 6.448 mg·L and 2.832 mg·L for immobilized and raw , respectively. The of immobilized were 1.850 mg Cd·g in Cd + Pb solution and 3.961 mg Cd·g in Cd + Cu solution, respectively. The Cd adsorption processes subjected to both adsorbents follow pseudo-second-order model. Mechanism study showed the functional group of was –OH, –NH, –CO, and PVA played an important role in metal adsorbing. Mining wastewater treatment test showed that PVA–SA-immobilized was effective in mixed pollutant treatment even for wastewater containing metal ions in very low concentration.

Keywords： immobilization Lentinus edodes residue competitive adsorption isotherm