December 12, 2014-China Academy of Telecommunication Research of MIIT has announced its analysis report of domestic mobile phone market of November 2014. In November 2014, the overall shipments of mobile phones reach...December 12, 2014-China Academy of Telecommunication Research of MIIT has announced its analysis report of domestic mobile phone market of November 2014. In November 2014, the overall shipments of mobile phones reached 44.543 million units in China. Among which 2G mobile phone shipments was of 5.742 million, 3G mobile phone was of 7.2 million and 31.601 million for 4G ones. 4G mobile phone shipments continued to increase rapidly, which was more than 4 times of 3G mobile phone shipments.展开更多
ZTE Corporation announced on April 29, 2009 that its terminal products recorded 10 million units shipped globally in Q1 2009, representing an increase of 30% compared with
In order to let the supplier make more reasonable supply decisions,an integrated continuous replenishment policy for the vendor-managed inventory system is presented,which considers the quantity-based shipment consoli...In order to let the supplier make more reasonable supply decisions,an integrated continuous replenishment policy for the vendor-managed inventory system is presented,which considers the quantity-based shipment consolidation and stock replenishment with lead time.Then the system cost is analyzed and a mathematical model is built.Since the model is rather complex,the bounds of the optimal policy are first attained,then the problem is solved by a heuristic algorithm.Through experiments the relationship between the order lead time and the corresponding integrated policy is discussed,and the influence on the system cost is also analyzed.The results reveal that the lead time's influence on the system is more serious with the increase of the order lead time,the integrated policy with the order lead time is more reasonable and the optimal policy can minimize the total system cost.Finally,the parameter sensitivity of the model is analyzed.展开更多
This paper employs mathematical modeling and algebraic approach to derive the optimal manufacturing batch size and number of shipment for a vendor-buyer integrated economic production quantity (EPQ) model with scrap. ...This paper employs mathematical modeling and algebraic approach to derive the optimal manufacturing batch size and number of shipment for a vendor-buyer integrated economic production quantity (EPQ) model with scrap. Unlike the conventional method by using differential calculus to determine replenishment lot size and optimal number of shipments for such an integrated system, this paper proposes a straightforward algebraic approach to replace the use of calculus on the total cost function for solving the optimal production- shipment policies. A simpler form for computing long-run average cost for such a vendor- buyer integrated EPQ problem is also provided.展开更多
Smartphone Sales China's smartphone shipments fell 15.5 percent last year to 390 million units,data .from the China Academy of Information and Communications Technology (CAICT)showed.
The extreme large miter gates of TGP permanent shiplock are of great difficulty in erection,in view of the stringent requirement of precision control and the complicated components.The major erection problems,such as ...The extreme large miter gates of TGP permanent shiplock are of great difficulty in erection,in view of the stringent requirement of precision control and the complicated components.The major erection problems,such as the erection measurement control, the selection of erection position of gate leaf,welding and deformation manipulation,the erection of back tie rods,the installation of apex pintle and prestressing anchorages,etc., had been carefully deliberated, and the optimized approaches were adopted.The erection practice of the miter gate at No.1 lock head shows that the adopted erection technology is safe,reliable and effective, and it may be used for reference for similar miter gates.展开更多
In the integrated production-shipment models for the single-vendor-single-buyer system presented hitherto, the demand rate of items is treated as a constant. However, many researchers have observed that the presence o...In the integrated production-shipment models for the single-vendor-single-buyer system presented hitherto, the demand rate of items is treated as a constant. However, many researchers have observed that the presence of more quantities of the same product tends to attract more customers. This suggests that the demand rate should depend on the stock level. This paper presents a single-vendor-single-buyer production-shipment model with the stock dependent demand rate, based on the demand rate linearly depending upon the stock level at any instant of time.展开更多
ZTE Corporation (ZTE), a leading global provider of telecommunications equipment and network solutions, announced on November 13, 2009 that its Software Defined Radio (SDR) base stations have recorded a total volume
ZTE Corporation announced on May 26, 2009 that its Soft Defined Radio (SDR) base station had recorded a total volume shipment of 107,000 units since its latest product
August 21,2007,Shenzhen,China-ZTE Corporation ("ZTE") today announced that it has shipped close to 12 000 CDMA base stations in the first six months of 2007
The most common method of shipping cells between institutes and companies is sending them frozen, usually treated with anti-freeze solution (most commonly DMSO because it is less toxic than many alternatives), and the...The most common method of shipping cells between institutes and companies is sending them frozen, usually treated with anti-freeze solution (most commonly DMSO because it is less toxic than many alternatives), and then packaging them in dry ice for shipment. However many countries place restrictions on dry ice shipments. An alternative to shipping frozen cell vials is to send flasks of growing cells in media. This also has problems because cells in media have limited viability and the flasks can leak. Here we report on an alternative method for shipping viable cells at ambient temperature without dry ice or in media filled flasks. In this study we report on the development and properties of HemSol?. This is an inexpensive, eco-friendly and protects cell integrity at ambient temperature while maintaining viability. We have previously shown that HemSol? protects platelet and RBC function in cold storage and circulating tumor cells up to 6 days. Therefore we wanted to know if HemSol? could also be used to transport live cells. Since HemSol? is a liquid, we experimented with encasing the cells with HemSol? and gelatin so as to prevent dry ice shipment of cells and circumvent the shipping of cells in media. We performed mock shipping experiments where cells were stored in HemSol? gel kept at room temperature on a lab benchtop and cells stored in dry ice was also kept on lab benchtop for up to 2 days. After the mock shipping period, we analyzed cells for their functions. Our results show that cells in HemSol? gel have greater than 95% viability and restored biological functions in 2 hours, whereas, cells shipped in dry ice required more than 24 hours to recover and needed media change to remove the DMSO.展开更多
ZTE Corporation announced on May 8, 2008 that volume shipment in Q1 2008 of its GSM products had grown by 100% compared to the same period last year, sustaining a strong growth momentum and within the company’s annua...ZTE Corporation announced on May 8, 2008 that volume shipment in Q1 2008 of its GSM products had grown by 100% compared to the same period last year, sustaining a strong growth momentum and within the company’s annual sales target. The impressive record is attributed to the continuous robustness and expansion of the international GSM market, which the company took advantage of by launching several GSM product marketing campaigns in Asia Pacific.展开更多
Scrapping market is unique in many respects.The value of its products is more affected by international trade than by shipping economic circles.There are many regulations for the environmentally friendly dismantling o...Scrapping market is unique in many respects.The value of its products is more affected by international trade than by shipping economic circles.There are many regulations for the environmentally friendly dismantling of ships.Ship recycling is the eco-friendly method of ship dismantling,and it is governed by a set of rules,namely:(a)HKC(Hong Kong Convention)on Ship Recycling of 2009,prepared by IMO(International Maritime Organization),(b)UN(United Nations)B.C.(Basel Convention)of 1989 and(c)E.U.Waste Shipment Regulation of 2006.Despite this polyphony in legislation,no clear set of rules has been uniformly applied yet,resulting in institutional discontinuities which shipowners often exploit.In this paper,a case study analysis of the most major shipbreaking countries will be conducted to evaluate the impact of the present regulatory framework and assess if the enactment of the legislation affected the shipping practice.展开更多
As a European Union(EU)member,Portugal must comply with reductions in plastic waste.In Portugal,the 330 items/100 m of beach litter,comprising up to 3.9 million pieces and of which 88%is plastic,is higher than the EU ...As a European Union(EU)member,Portugal must comply with reductions in plastic waste.In Portugal,the 330 items/100 m of beach litter,comprising up to 3.9 million pieces and of which 88%is plastic,is higher than the EU median(149 items/100 m)and must be reduced to 20 items/100 m(94%).Integrative measures are needed to reduce littering and improve plastics’use and disposal under the circular economy.Of this 414 kt of plastic packaging waste,163 kt were declared plastic packaging,140 kt subjected to recycling,and 94 kt to energy recovery.The current recycling rate of plastic packaging(34%)should be improved to reach EU recycling averages(42%)and goals and to provide widespread benefits,considering revenues of 167€/t.As a net importer of waste,Portugal could benefit from the valorization of imported waste.Besides increased recycling,pyrolysis and gasification could provide short-term alternatives for producing value-added substances from plastic waste,such as hydrogen,consistent with the National Plan of Hydrogen and improving ongoing regulations on single-use plastics.This manuscript provides an integrative view of plastics in Portugal,from use to disposal,providing specific recommendations under the circular economy.展开更多
In this paper,we consider an imperfect production-inventory system which consists of a single manufacturer and a single retailer.The manufacturer delivers the order quantity to the retailer in some unequal-sized batch...In this paper,we consider an imperfect production-inventory system which consists of a single manufacturer and a single retailer.The manufacturer delivers the order quantity to the retailer in some unequal-sized batches.To separate the defective items,the retailer performs an error-free screening process after receiving each delivery from the manufacturer.Shortage in retailer’s inventory is allowed and completely backlogged.The customer demand is influenced by the retail price,advertisement frequency and greening level of the product.The centralized model and the decentralized model based on a Stackelberg gaming approach are developed to determine optimal pricing,advertising and inventory decisions.A cost-sharing contract between the manufacturer and the retailer is implemented,which enhances the environmental performance,advertisement frequency and profitability of the supply chain significantly.The proposed model is illustrated with a numerical example.Sensitivity analysis for some key parameters is carried out and several managerial insights are also highlighted.展开更多
文摘December 12, 2014-China Academy of Telecommunication Research of MIIT has announced its analysis report of domestic mobile phone market of November 2014. In November 2014, the overall shipments of mobile phones reached 44.543 million units in China. Among which 2G mobile phone shipments was of 5.742 million, 3G mobile phone was of 7.2 million and 31.601 million for 4G ones. 4G mobile phone shipments continued to increase rapidly, which was more than 4 times of 3G mobile phone shipments.
文摘ZTE Corporation announced on April 29, 2009 that its terminal products recorded 10 million units shipped globally in Q1 2009, representing an increase of 30% compared with
基金The National Key Technology R&D Program of China during the 11 th Five-Year Plan Period(No.2006BAH02A06)
文摘In order to let the supplier make more reasonable supply decisions,an integrated continuous replenishment policy for the vendor-managed inventory system is presented,which considers the quantity-based shipment consolidation and stock replenishment with lead time.Then the system cost is analyzed and a mathematical model is built.Since the model is rather complex,the bounds of the optimal policy are first attained,then the problem is solved by a heuristic algorithm.Through experiments the relationship between the order lead time and the corresponding integrated policy is discussed,and the influence on the system cost is also analyzed.The results reveal that the lead time's influence on the system is more serious with the increase of the order lead time,the integrated policy with the order lead time is more reasonable and the optimal policy can minimize the total system cost.Finally,the parameter sensitivity of the model is analyzed.
文摘This paper employs mathematical modeling and algebraic approach to derive the optimal manufacturing batch size and number of shipment for a vendor-buyer integrated economic production quantity (EPQ) model with scrap. Unlike the conventional method by using differential calculus to determine replenishment lot size and optimal number of shipments for such an integrated system, this paper proposes a straightforward algebraic approach to replace the use of calculus on the total cost function for solving the optimal production- shipment policies. A simpler form for computing long-run average cost for such a vendor- buyer integrated EPQ problem is also provided.
文摘Smartphone Sales China's smartphone shipments fell 15.5 percent last year to 390 million units,data .from the China Academy of Information and Communications Technology (CAICT)showed.
文摘The extreme large miter gates of TGP permanent shiplock are of great difficulty in erection,in view of the stringent requirement of precision control and the complicated components.The major erection problems,such as the erection measurement control, the selection of erection position of gate leaf,welding and deformation manipulation,the erection of back tie rods,the installation of apex pintle and prestressing anchorages,etc., had been carefully deliberated, and the optimized approaches were adopted.The erection practice of the miter gate at No.1 lock head shows that the adopted erection technology is safe,reliable and effective, and it may be used for reference for similar miter gates.
文摘In the integrated production-shipment models for the single-vendor-single-buyer system presented hitherto, the demand rate of items is treated as a constant. However, many researchers have observed that the presence of more quantities of the same product tends to attract more customers. This suggests that the demand rate should depend on the stock level. This paper presents a single-vendor-single-buyer production-shipment model with the stock dependent demand rate, based on the demand rate linearly depending upon the stock level at any instant of time.
文摘ZTE Corporation (ZTE), a leading global provider of telecommunications equipment and network solutions, announced on November 13, 2009 that its Software Defined Radio (SDR) base stations have recorded a total volume
文摘ZTE Corporation announced on May 26, 2009 that its Soft Defined Radio (SDR) base station had recorded a total volume shipment of 107,000 units since its latest product
文摘August 21,2007,Shenzhen,China-ZTE Corporation ("ZTE") today announced that it has shipped close to 12 000 CDMA base stations in the first six months of 2007
文摘The most common method of shipping cells between institutes and companies is sending them frozen, usually treated with anti-freeze solution (most commonly DMSO because it is less toxic than many alternatives), and then packaging them in dry ice for shipment. However many countries place restrictions on dry ice shipments. An alternative to shipping frozen cell vials is to send flasks of growing cells in media. This also has problems because cells in media have limited viability and the flasks can leak. Here we report on an alternative method for shipping viable cells at ambient temperature without dry ice or in media filled flasks. In this study we report on the development and properties of HemSol?. This is an inexpensive, eco-friendly and protects cell integrity at ambient temperature while maintaining viability. We have previously shown that HemSol? protects platelet and RBC function in cold storage and circulating tumor cells up to 6 days. Therefore we wanted to know if HemSol? could also be used to transport live cells. Since HemSol? is a liquid, we experimented with encasing the cells with HemSol? and gelatin so as to prevent dry ice shipment of cells and circumvent the shipping of cells in media. We performed mock shipping experiments where cells were stored in HemSol? gel kept at room temperature on a lab benchtop and cells stored in dry ice was also kept on lab benchtop for up to 2 days. After the mock shipping period, we analyzed cells for their functions. Our results show that cells in HemSol? gel have greater than 95% viability and restored biological functions in 2 hours, whereas, cells shipped in dry ice required more than 24 hours to recover and needed media change to remove the DMSO.
文摘ZTE Corporation announced on May 8, 2008 that volume shipment in Q1 2008 of its GSM products had grown by 100% compared to the same period last year, sustaining a strong growth momentum and within the company’s annual sales target. The impressive record is attributed to the continuous robustness and expansion of the international GSM market, which the company took advantage of by launching several GSM product marketing campaigns in Asia Pacific.
文摘Scrapping market is unique in many respects.The value of its products is more affected by international trade than by shipping economic circles.There are many regulations for the environmentally friendly dismantling of ships.Ship recycling is the eco-friendly method of ship dismantling,and it is governed by a set of rules,namely:(a)HKC(Hong Kong Convention)on Ship Recycling of 2009,prepared by IMO(International Maritime Organization),(b)UN(United Nations)B.C.(Basel Convention)of 1989 and(c)E.U.Waste Shipment Regulation of 2006.Despite this polyphony in legislation,no clear set of rules has been uniformly applied yet,resulting in institutional discontinuities which shipowners often exploit.In this paper,a case study analysis of the most major shipbreaking countries will be conducted to evaluate the impact of the present regulatory framework and assess if the enactment of the legislation affected the shipping practice.
基金Thanks are due to FCT/MCTES for the financial support(UIDP/50017/2020+UIDB/50017/2020)through national fundsThis work was also funded by the Portuguese Science Foundation(FCT)through the scholarship PD/BD/135581/2018 and the research contract CEECIND/01366/2018 under POCH funds,co-financed by the European Social Fund and Portuguese National Funds from MEC.Thanks are due to Ana Luísa Martino Costa for proofreading the article.
文摘As a European Union(EU)member,Portugal must comply with reductions in plastic waste.In Portugal,the 330 items/100 m of beach litter,comprising up to 3.9 million pieces and of which 88%is plastic,is higher than the EU median(149 items/100 m)and must be reduced to 20 items/100 m(94%).Integrative measures are needed to reduce littering and improve plastics’use and disposal under the circular economy.Of this 414 kt of plastic packaging waste,163 kt were declared plastic packaging,140 kt subjected to recycling,and 94 kt to energy recovery.The current recycling rate of plastic packaging(34%)should be improved to reach EU recycling averages(42%)and goals and to provide widespread benefits,considering revenues of 167€/t.As a net importer of waste,Portugal could benefit from the valorization of imported waste.Besides increased recycling,pyrolysis and gasification could provide short-term alternatives for producing value-added substances from plastic waste,such as hydrogen,consistent with the National Plan of Hydrogen and improving ongoing regulations on single-use plastics.This manuscript provides an integrative view of plastics in Portugal,from use to disposal,providing specific recommendations under the circular economy.
基金The authors gratefully acknowledge the research support of the Department of Science and Technology,Government of India[IF170698].
文摘In this paper,we consider an imperfect production-inventory system which consists of a single manufacturer and a single retailer.The manufacturer delivers the order quantity to the retailer in some unequal-sized batches.To separate the defective items,the retailer performs an error-free screening process after receiving each delivery from the manufacturer.Shortage in retailer’s inventory is allowed and completely backlogged.The customer demand is influenced by the retail price,advertisement frequency and greening level of the product.The centralized model and the decentralized model based on a Stackelberg gaming approach are developed to determine optimal pricing,advertising and inventory decisions.A cost-sharing contract between the manufacturer and the retailer is implemented,which enhances the environmental performance,advertisement frequency and profitability of the supply chain significantly.The proposed model is illustrated with a numerical example.Sensitivity analysis for some key parameters is carried out and several managerial insights are also highlighted.
