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- Abstract：As a biophysical method used to compare the utility degree of natural resource with the life-supporting service function,ecological footprint,since it brought forward,has been a useful and powerful indicator of measuring the regional developmental sustainability.It has been applied in different fields: regions,tourism,resource,fish farm,paddy field,greenhouse gas emissions,transportation,etc.This paper firstly introduces concisely the assumption,ecological trade deficit,ecological overshoot of ecological footprint,and measures the regional development sustainability based on ecological footprint analysis.Particularly,this paper has discussed its assumptions,methods;and has reviewed in details the latest achievement and frontiers of ecological footprint.This paper put forward the improving suggestion for the floating population affecting, assumptions of sub-nation and other problems of ecological footprint.According to the above,the further research work as the paper concluded the following theory,methods,influence of resources of carry forward/balance,study in national hectare or provincial hectare,equivalence factors of aquiculture,aquaculture and stock farming in shed.Keywords：ecological footprint,biocapacity,assumption,methodology,measurement of sustainable development,suggestions6|8|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Abstract：In order to meet the need of earthworm taxonomy of China,the reaserch of earthworm ecology and exploitability of earthworm resources,this paper outlined the checklist and distribution of terrestrial earthworms(Oligochaeta: Opisthopora) in China(including Hongkong,Macao and Taiwan),described before October,2005.All the 306 species(including subspecies) belong to 9 families and 28 genera,fifty-nine of which were new species(including Taiwan) discovered after 1990.Keywords：China,terrestrial earthworm,Opisthopora,distribution8|6|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Abstract：To improve the fertility of cattle,the fusion expressing plasmid of inhibin pCISI,which was designed and extracted in our laboratory,was used to immune the 96 female cattle.Besides,the AMI-900 ultrascanner was adopted to examine the follicles of 84 ruttish cattles and the embryos of 78 pregnant cattles.The results showed that inhibin pCISI could cause two big follicles development (80.95%,68/84) and induce two mature follicles bringing out(60.71%,51/84).Meanwhile,inhibin pCISI could induce 41.03%(32/78)cattle twinning.The procaine had obviously a better effect than the liposome(48.78% vs.32.43%).The research proved that inhibin gene immunization could effectively improve the reproduction rate of cattles.Keywords：inhibin pCISI,gene immunity,cattle,ovulate,twinning1|6|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Abstract：In order to confirm the histological source of the tumor tissue and presume the significance in differential diagnosis,20 cases of canine mammary tumor were used to investigate the expression of p63 and Calponin proteins by immunohistochemical SP method and observed by the light microscope.Results showed that the monoclonal mouse antihuman p63 and Calponin antibodies could be used to evaluate the expression of myoepithelial cells in canine mammary tumor.In benign mammary tumors,such as the papillary tumor,mixed tumor and adenomyoepithelioma,the myoepithelial cells were showed strong immureactivities with the p63 and Calponin proteins,and unimmureactivities or partially immureactivities with them in malignant tumor tissues of the papillary carcinoma and infiltrating ductal carcinoma.The two antibodies of p63 and Calponin were proved that they presented an excellent sensitivity and specificity for basal and myoepithelial cell being markers.They formed a good tool in clinical diagnosis and in processing the histological resources of the benign and malignant mammary tumor tissues,the tumor and the tissue around the carcinoma.Keywords：Canine Mammary Tumor(CMT),p63,Calponin,Immunohistochemistry(IHC)1|6|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Keywords：Bacillus subtilis,fermentation,medium optimization,experimental designs2|7|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
Study on rapid concentration detection of colored transparent solution based on digital chromatology
Keywords：digital chromatology,eigen-color,concentration detection0|6|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27- Abstract：SNP is one kind of powerful molecular markers.The purpose in this study was to establish a simple method of detecting SNP based on PCR technique.Two specific forward primers were synthesized,both were in conformity with the found SNP in the last nucleotide.A 19 bp pecicific sequence was added into one primer with other species' sequence(eg.Bacteria DNA sequence) in 5' end.The same reversed primer was selected using the software Primer 5.0.The PCR was performed with the three specific primers using an appropriate anneal temperature selected by gradient PCR.The ZDS gene has been mapped on the short arm of chromosome 7 in maize based on this method.This technique is simple,effective and cheap,and could be helpful in constructing linkage maps and map genes.Keywords：Allele-Competitive PCR(AC-PCR),Single Nucleotide Polymorphism(SNP),gene mapping0|5|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Abstract：The physical characteristic is one of the most important signs of a pig growth and the study of the physical characteristic has an important reference significance for understanding of a pig growth at the different stages.Landraces used in this research are all from a certain intensive farming system in Tianjin the relationships among body weight,body length,oblique length,withers height,chest circumference,and abdominal perimeter variables were investigated and the principal component from the four stages,1-day-old,28-days-old,70-days-old and 150-days-old of Landraces,were analyzed.The result shows that the physical characteristics of the Landraces at different ages have notable correlation(P<0.01),especially the relationship between chest circumference and body weight.The PCs are different at different stages.When the Landraces are 1 day old,the length factor is the PC1,the height factor is the PC2;When the Landraces are 28,70 and 150 days old,the breadth factor is the PC1,the length factor is the PC2;when the Landraces are 1 and 70 days old,the length factor is the PC3,when the Landraces are 28 and 150 days old,the height factor is the PC3.Keywords：Landrace,physical characteristics,correlation,principal component analysis4|5|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Abstract：Aiming at the problem in estimating the weight of a pig by the traditional methods,we developed a new method to weight pigs by computer vision technique,in which a pig's weight was estimated by the projected areas and heights.Compared with a pig's real weight,the mean relative error of the estimated weight was 3.2%.The experimental results indicate that this hands-off method has a great significance for scientific management of pig production and does not require large labor and material resources.Keywords：pig,weight,image processing,projected area,height,3|6|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Abstract：This study was conducted to examine the nutritional value of sugar cane bagasse fibers treated with calcium hydroxide(CH) and ensure the economical addition level based on measurements of changes in chemical components,gas production and two stage technique in vitro.Bagasse was treated with calcium hydroxide at 5 addition levels(0,2%,4%,6%,and 8% of dry materials).As CH addition level increased,bagasse had quadraticly increased contents of calcium and ash (P<0.05),but quadraticly decreased contents of NDF,ADF and lignin (P<0.05),and increased(P<0.05) digestibilities of DM,NDF,potential gas production and total VFA production.At the calcium hydroxide dose of 8%,the contents of NDF, ADF and lignin decreased by 23%,5% and 7% respectively,the digestibilities of DM and NDF got up to 60%.In conclusion,calcium hydroxide treatment can enhance the fermentation of sugar cane bagasse by rumen microorganisms,with the effective level of calcium hydroxide added at 5.1 to 6.5% of dry bagasse.Keywords：sugar cane bagasse,calcium hydroxide,chemical treatment,chemical components,in vitro rumen(fermentation)2|6|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Abstract：Using corn(var.Nongda 108) as experimental material,various sections of stalks were compared for their chemical composition,in vitro digestibility and gas production.The results showed that there was significantly difference (P<0.05) among sections.The stem nodes and barks had highest content of total carbohydrates(20.7% and 19.3%,respectively) and of ether extract(5.8% and 5.2%,respectively).The stem pith contained the lowest ether extract.The highest content of crude protein was found in leaf blades(14.9%),followed by that in stem pith.Leaf blade accumulated 10.5% of ash,1.03% of Ca and 0.1%P.A concentration of 77.1% NDF was found in ear husks,whereas 52.0?F and 14.4%lignin were localized in stem barks.When steers were used as experimental animals,the ear husk exhibited highest in vitro digestibilities of dry matter,NDF and ADF,and stem barks was lost.More in vitro gas production occurred in ear husk,followed respectively by stem pith,leaf blade,leaf sheath,stem node and stem bark. It was concluded that different sections of corn stalks contained different nutritive values,ranked as follows: ear husk > stem pith > leaf blade > leaf sheath > stem node > stem bark.Keywords：corn stalks,chemical composition,gas production,digestibility1|7|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Abstract：Aimed at the ridge-till pattern of maize planting,and combined with the points of the conservation tillage technology a new type of ridge-till and no-till maize planter was designed to realize no-till seeding in the field of former ridge.The 2BML-2(Z) type ridge-till and no-till maize seeder consists of a power driven corn rootstalk cutting device,an opening and fertilizing device,a soil covering device and a pack roller.The field tests approved that the qualified rate for space of seeds is about 96.2%,the average depth of blades 8.5?cm,the average depths of seeds and fertilizing are 5.2?cm and 3.95?cm respectively and the distance between them is 3.3?cm.This planter can perform the corn rootstalk cutting,opening,fertilizing,seeding,and packing operations once.It works with little interference to soil and its seeding quality meets the agricultural requirement.Keywords：maize ridge-till,corn rootstalk cutting device,no-till planter,conservation tillage1|6|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Abstract：Owing to the unadvanced and inefficient design of a potato harvester,a feature-based parametric modeling software,Autodesk Inventor,was used for its modeling.The movement of swing sieve,a key part of potato harvester,was simulated using the ADAMS package.The complex velocity,acceleration and displacement curves as well as collision pressure curves were analyzed.The analytical results show that the centroid velocity of the swing sieve is lower than 500?mm/s,its acceleration higher than 2.5?m/s~2,the collision pressures of little and middling potatoes are 120?N and 250?N respectively,which are all lower than the damage pressure,potatoes conveying freely and the damaged rate less than 4% when its frequency is 5.5?Hz and the swing amplitude 30?mm.Keywords：potato harvester,swing sieve,parametric modeling,simulation6|6|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Keywords：PRB,planter,reshaping device,combined press roller,sheering off stubbles0|8|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Abstract：In order to solve the problem that a traditional environment control system for laying house couldn't send the message to remote area,a networked monitoring system for laying house based on embedded Web server was developed.Hardware constituent and software design of the embedded Web server was discussed in this paper.Using PIC microchip and network control chip as main hardware,the software realized thin TCP/IP and all of the equipments connected to the embedded Web server realized Web function.Using the embedded Web server as an intelligent node,laying house as a unit connected to the network of the poultry farm,the laying house managers and the remote senior managers can use the system by Internet in the same way.Through tests,computers in the network of poultry farm can supervise real time environmental parameters which including temperature,humidity,illumination intensity and harmful gas concentration through accessing the IP address of embedded Web server.This function can also be implemented by authorizing to Internet users.The system can realize the function of monitoring the real time and long-distance environmental information of laying house.As a result,the work efficiency was improved.Keywords：embedded Web server,laying house,environmental monitoring0|6|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Abstract：Published literatures on the analytical technique of near infrared spectroscopy(NIRS) applied to livestock manure compost were reviewed,and analysis of the subsistent problems and our suggestions were given.The results demonstrated that NIRS had already been applied to measure the content of livestock manure compost components exactly,such as the contents of water,crude ash,carbon, nitrogen,kalium,cellulose and so on,for its many advantages of rapidness,non-destructivity,stabilization and high efficiency.However,there are also many problems to be solved,for instance,the technical bottleneck for non-technicians,localization in institute,the lack of on-line application and so on.To accelerate the development of the NIRS application to compost studies,setting up a standard method with a wider applicability is necessary and the keys are the supervision of the production process and the standardization of the quality control of livestock manure compost products by NIRS in future work.Keywords：near infrared spectroscopy,livestock manure compost,content determination,quality evaluation1|8|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Abstract：To eliminate boundary effects in image a new image chaos encryption technology,the chaos encryption based on interval wavelet coding,is proposed.Compared with the traditional image extent method,the special extent processes is no longer necessary in this method before the wavelet transform(WT) to image and after the inverse wavelet transform(IWT) to chaos encryption serials.The test results shows that this method can be used to eliminate the boundary effect and compress the image file.Besides,the value of parameter L can be changed to meet various precision requirements for reconstruction of an image.Keywords：interval wavelet,chaos encryption,boundary effect0|6|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Abstract：Data is now getting more and more various and complex along with the rapid development of network technique.How to store various data efficiently becomes a focus in network and database domains.The C/S structure application based on database often shares data between every client.Some of the data are stored as files,such as Word documents,Excel documents,pictures and so on.In this paper we tried to store data files in database with the XML technique.By this means,data were efficiently shared between every client,and the application was successful.Keywords：XML,data,C/S,DOM0|6|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Abstract：In this paper,an approach for fast detection of lines on highway based on the Improved Hough Transform was given.The position of the carriageway was determined by the color difference between the carriageway and the road surface and the substitutive points on the carriageway were calculated,which were classified into groups according to a vehicle position on the road.The middle point of each group was regarded as a datum mark,based on which the carriageway slope was figured out by the Improved Hough Transform method.Compared with the traditional Hough transform,the new approach has the features of higher speed,smaller memory space and higher precision.Keywords：Improved Hough Transform,carriageway,detection of middle line0|6|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Keywords：Leggett-Williams fixed point theorem,cone,positive solution,multiple-point boundary value problem(system)0|6|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Keywords：waste oil,bio-diesel,transesterification,orthogonal test2|6|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
- Abstract：To find out the microcosmic distribution rules of commercial land value,this research was conducted based on the regionalized variety theory and geostatistics.Taking Huhhot as a case study,semivariograms were used to analyze spatial continuity and variability of commercial land value,Ordinary Kriging interpolator to model distribution of commercial land value and achieves modeled map of commercial land value.The results show that commercial land samples' value take on spatial autocorrelation and anisotropics,are impacted by regional total trend more than little-range variability;land value takes on continuity in general and variability in local;land value isolines take on circles structure,but higher value regions having littler area;urban roads and streets have important impacts on land value,city expanding can heighten land value in the regions of expanding directions;commercial land value descends exponentially from city center to city periphery.The method and conclusions of this paper maybe used for reference to relative research.Keywords：commercial and value,modeling,spatial structure,geostatistics,Huhhot city0|6|0<HTML><L-PDF> <Meta-XML>Updated：2024-02-27
