大连盐化集团传统产业升级成功案例探析

当前,随着人们消费需求的转变,我国部分地区传统产业在不断改造升级。大连盐化集团传统产业升级,是将天然海盐与生态旅游相结合,成功将制盐产业转变成旅游产业发展起来。这一成功案例对当地的政治、经济、文化以及生态文明的发展具有重要的促进作用,文章对此进行研究,以促进更好的发展。

开辟大连新水源的途径——污水回用

大连是典型的严重缺水型城市 ,也是全国较早开展污水回用研究与相关设施建设的城市之一。结合多年的工作实践 ,指出在大力发展污水再生、回用方面的诸多制约因素 ,提出了推进城市污水资源化所需的政策、技术支持及措施。

固定床轻石脑油催化加氢脱硫研究

在200 mL固定床催化加氢装置上考察了Co-Ni-Mo-W四元复合催化剂在轻石脑油催化加氢的脱硫效果,考察了反应温度,氢气分压、空速、氢油体积比等工艺条件对加氢脱硫反应的影响。实验结果表明:Co-Ni-Mo-W四元复合催化剂具有良好的脱硫脱烯效果,脱硫效率平均为99%,烯烃脱除率可达98.6%。在中低压低温时有效脱除轻石脑油中S、O、烯烃的同时避免了芳构化,避免了芳烃的损失。

Recursive bisection placement algorithm with the predicted wirelength

To obtain a better placement result, a partitioning-based placement algorithm with wirelength prediction called HJ-Pl is presented. A new method is proposed to estimate proximity of interconnects in a netlist, which is capable of predicting not only short interconnects but long interconnects accurately. The predicted wirelength is embedded into the partitioning tool of bisection-based global placement, which can guide our placement towards a solution with shorter interconnects. In addition, the timing objective can be handled within the algorithm by minimizing the critical path delay. Experimental results show that, compared to Capol0. 5, mPL6, and NTUplace, HJ-P1 outperforms these placers in terms of wirelength and run time. The improvements in terms of average wirelength over Capo10. 5, mPL6 and NPUplace are 13%, 3%, and 9% with only 19%, 91%, and 99% of their runtime, respectively. By integrating the predicted wirelength-driven clustering into Capo10. 5, the placer is able to reduce average wirelength by 3%. The timing-driven HJ-P1 can reduce the critical path delay by 23%.

THEORIES AND METHODS OF STRATEGIC ENVIRONMENTAL ASSESSMENT OF MODERN LOGISTICS DEVELOPMENT——A Case Study of Dalian City, China

Modern logistics is a new industry during the construction of national economy. Based on analyzing the environmental problem that was led by the limitation of the strategy during enacting the program of the modern logistics, SEA for modern logistics was implemented. In this paper, procedure and indicator system in the SEA are constructed, and Environmental Check List to identify environmental impact factors of SEA for modern logistics is established. And a conception that indicates friendly degree of logistics system with resources and environment, degree of green, is introduced. With the example of modern logistics program of Dalian in China, two methods are applied, AHP and Fuzzy Comprehensive Evaluation Method, in the implement of SEA for modern logistics development. It is concluded that degree of green of modern logistics in Dalian is high. However, several important factors should be paid much attention to in the SEA for modern logistics as well as in the formulation and implement of modern logistics in Dalian.

如何在企业改制中开展科协工作

大连石油化上公司是以炼油为主的特大型中直企业，主要生产汽油、柴油、润滑油、石蜡等200余种产品。重组改制前有11403名职上，科技人员2300多名，科协会员1800多名。科协专职人员最多时有5人，2000年企业进行了重组改制。重组改制后，成立了股份公司科协。公司现有4290多名职上，科技人员1138名，科协会员878人，科协办公室及所属机构人员7人(办公室2人，科技活动室2人，经营实体3人)。在公司重组改制过程中，科协工作一度受到影响，但最终得到发展。大连石化股份公司科协从成立到发展的经历，也许对重组改制中的企业科协工作有所启示和借鉴作用。

Effect of salvianolate on intestinal epithelium tight junction protein zonula occludens protein 1 in cirrhotic rats

AIM:To study the effect of salvianolate on tight junctions(TJs) and zonula occludens protein 1(ZO-1) in small intestinal mucosa of cirrhotic rats.METHODS:Cirrhosis was induced using carbon tetrachloride.Rats were randomly divided into the untreated group,low-dose salvianolate(12 mg/kg) treatment group,medium-dose salvianolate(24 mg/kg) treatment group,and high-dose salvianolate(48 mg/kg) treatment group,and were treated for 2 wk.Another 10 healthy rats served as the normal control group.Histological changes in liver tissue samples were observed under a light microscope.We evaluated morphologic indices of ileal mucosa including intestinal villi width and thickness of mucosa and intestinal wall using a pathological image analysis system.Ultrastructural changes in small intestinal mucosa were investigated in the five groups using transmission electron microscopy.The changes in ZO-1 expression,a tight junction protein,were analyzed by immunocytochemistry.The staining index was calculated as the product of the staining intensity score and the proportion of positive cells.RESULTS:In the untreated group,hepatocytes showed a disordered arrangement,fatty degeneration was extensive,swelling was obvious,and disorganized lobules were divided by collagen fibers in hepatic tissue,which were partly improved in the salvianolate treated groups.In the untreated group,abundant lymphocytes infiltrated the fibrous tissue with proliferation of bile ducts,and collagen fibers gradually decreased and damaged hepatic lobules were partly repaired following salvianolate treatment.Compared with the untreated group,no differences in intestinal villi width between the five groups were observed.The villi height as well as mucosa and intestinal wall thickness gradually thickened with salvianolate treatment and were significantly shorter in the untreated group compared with those in the salvianolate treatment groups and normal group(P < 0.01).The number of microvilli decreased and showed irregular lengths and arrangements in the untreated group.The intercellular space between epithelial cells was wider.The TJs were discontinuous,which indicated disruption in TJ morphology in the untreated group.In the treated groups,the microvilli in the intestinal epithelium were regular and the TJs were gradually integrated and distinct.The expression of ZO-1 decreased in the small intestine of the untreated cirrhotic rats.The high expression rate of ZO-1 in ileal mucosa in the untreated group was significantly lower than that in the medium-dose salvianolate group(21.43% vs 64.29%,χ 2 = 5.25,P < 0.05),high-dose salvianolate group(21.43% vs 76.92%,χ 2 = 8.315,P < 0.01) and normal group(21.43% vs 90%,χ 2 = 10.98,P < 0.01).CONCLUSION:Salvianolate improves liver histopathological changes,repairs intestinal mucosa and TJ structure,and enhances ZO-1 expression in the small intestinal mucosa in cirrhotic rats.

Impact of Urban Areas on Historical and Archaeological Buildings

The present paper is talking about the recent situation of the archeological buildings which exist through modern urban environments. Urban expansion has a large effect on the archeological buildings continuity since such type of development impresses several serious challenges which conservation plans as well as preservation polices must deal with. A number of that main challenges are mega-constructions （tunnels, damps, roads, etc.）, pollution, socio-cultural impacts and traffic. Within Um Qias, the archeological buildings face similar challenges consistent with the urban environment where it is presented and that challenges are reviewed in the local community behavior.

Applying Analytical Derivative and Sparse Matrix Techniques to Large-Scale Process Optimization Problems

The performance of analytical derivative and sparse matrix techniques applied to a traditional dense sequential quadratic programming (SQP) is studied, and the strategy utilizing those techniques is also presented.Computational results on two typical chemical optimization problems demonstrate significant enhancement in efficiency, which shows this strategy is promising and suitable for large-scale process optimization problems.

Influence of concrete differential aging time on the construction phases analysis of the Fenghua River Bridge

The Fenghua River Bridge is a major structure on the highway between Hengzhang and Guojiachi, which is to be built with a four-span prestress concrete (PC) box girder and symmetrical cantilever castings. In this paper, a finite element method (FEM) model is set up to study the effects of concrete differential aging time on the construction phases of the Fenghua River Bridge by calculating the vertical displacement of the folding segment of the middle span and the longitudinal bending moment of Pier 12#. In the model, the girders are classified into 150 changing sections based on the desgn scheme, and their construction is to be carried in 16 phases respectively to build 12 blocks connected by a side folding segment and a middle folding segment, covered with a second dead load and in completion for 20 years. It is found that the internal forces and deformations of the concrete structures at the aging time of 60 d are quite different from those of 0 d aging time while the behaviors of the structures of 120 d aging time is nearly the same as those of 60 d aging time― the differences are so small that can be neglected, suggesting that the creep develops obviously about one month after the cement is hardened and the development fades later on.

The Dynamics of Hong Kong Identity： A Sociolinguistic Perspective

This paper looks at the language use and the language situation of Hong Kong and their relationship with the identity issue or identity crisis （as reported in some of the media, such as The Guardian, March 2012）. The ＂bi-literacy and tri-lingualism language policy＂ of Hong Kong is discussed. The use of the three language varieties, namely Cantonese, English and Mandarin are discussed in relation to Hong Kong people＇s proclaimed cultural identity. The emergence of mixed code （juxtaposing English into Cantonese utterances） also marks the link between language and proclaimed cultural identity. With the several social issues happened in Hong Kong 2010-2012, Hong Kong citizens＇ sense of belonging with an ethnic Hong Kong identity reached the highest according to the Public Opinion Program launched by one of the universities in Hong Kong. Language use in one of the recent television drama series magnifies the issue of ＂Hongkongness＂ which is closely linked to the use of Cantonese and mixed code.

Research on Dynamic Parameters of Soil Sites in the Dalian Area

In this paper, dynamic soil parameters derived from Dalian area seismic risk assessment reports are collected. In this study, the measurement data is divided into 7 types, i.e. silty clay, muddy silty clay, clay, medium sand, rock fragments, backfill soil and fully-weathered slate. Statistics of the dynamic parameters of these soils are carried out to obtain the mean values of dynamic shear modulus ratio and damping ratio. Typical drill holes are selected to establish dynamic soil models to investigate the seismic response for various cases. The dynamic parameters of the models are taken from the statistical values of this study, the standard values of code 94 (i.e. the dynamic soil parameters for Dalian seismic microzonation), and the recommended values by Yuan Xiaoming et al. (2000) respectively. The calculated results of peak ground acceleration are compared with the response spectral characteristics. The results show that the statistical values are approximate to the values recommended by Yuan Xiaoming, et al. (2000), but different greatly with the standard values in code 94.

PH_3 monitoring in Arctic and Dalian bay areas

In this paper, we use pre-column 2 times low-temperature cryo-trap enrichment--gas chromatography（GC） /nitrogen and phosphorus detector（NPD）to detect and analyze phosphine in Arctic pole area for the first time. The results show phosphine exists in all of the samples in Arctic pole biosphere and phosphine concentration in Arctic atmosphere is between 18.54- 132.18 ng/m^3, almost the same as that in Antarctic atmosphere; phosphine concentration in Dalian bay sea surface sediments is between 116. 8- 554.3 ng/kg, almost the same as that reported in Jiao-zhou bay. Our research of phosphine will shed new light on the mechanisms showing how the phosphorus supplement influences the biogeochemical cycle and global warming.

Effect of Xixin decoction on O-linked N-acetylglucosamine Glycosylation of tau proteins in rat brain with sporadic Alzheimer disease

OBJECTIVE： To study the effects of Xixin decoction （XXD） on O-linked N-acetylglucosamine （O-GIcNAc） glycosylation of tau proteins in rat brain with spo- radic Alzheimer disease （SAD）, and discuss its possi- ble mechanism on prevention and treatment of SAD. METHODS： The rat model of SAD was established by intracerebroventricular injection of streptozoto- cin. The specific pathogen free male Sprague-Daw- ley rats were randomly divided into sham-opera- tion group （S）, model group （M）, donepezil group （D）, XXD at a low dose group （XL）, XXD at a medium dose group （XM） and XXD at a high dose group （XH）. After treatment and praxiology test, immuno- histochemistry and western blotting were used to detect O-GIcNAc glycosylation level of tau proteins in rat brain with SAD. O-GIcNAc glycosylation and expression of tau proteins were detected by O-GIcNAc-specific antibodies RL2 and CTD110.6. RESULTS： O-GIcNAc glycosylated proteins enriched by succinylated wheat germ agglutinin significant- ly improved in the hippocampus of SAD rats. Thedifferences were statistically significant among XXD groups （P〈0.05, P〈0.01）, while no obvious dif- ferences were observed between D group and M group （P〉0.05）. CONCLUSION： XXD can significantly improve O-GIcNAc glycosylation level of tau proteins in the hippocampus of SAD rats, which maybe inhibit hy- perphosphorylation of tau proteins on key sites and its toxicity, and prevent the pathological pro- cess of SAD.

SETTING SAIL

China’s second aircraft carrier,also the first developed and built indigenously,is launched at a Dalian shipyard in northeast China’s Liaoning Province on April 26.The carrier began to be built in November 2013.In the next stage of its development,it will undergo outf itting,when engineers and workers will complete installation of its power plant,interior equipment and systems as well as weapons.