This study was carried out to determine the sprouting period of early and mid-season varieties, which includes ‘Atlantic’, ‘Chubaek’, and ‘Superior’, during the summer storage period in a semi-underground warehouse without cooling system. And also it was investigated the effect of chlorpropham [Propan-2-yl N-(3-chlorophenyl)carbamate, CIPC] treatment on the sprouting inhibition for the varieties. This study was conducted to figure out a sprout inhibitory effect when CIPC was applied to 1kg of the potato tubers at concentrations of 10 mg and 20 mg which are lower than the treatment concentrations of ca 30 mg prescribed by the positive list system (PLS). The internal temperature of the warehouse used in this experiment was lowered by 5°C or more than the outside temperature. The difference between the lowest and highest temperature during the experiment throughout the day was 5°C. It showed the effect of reducing to 1/2 of the difference in outdoor temperature. As for the sprouting of potatoes, the extremely early variety ‘Chubaek’ sprouts appeared at the 6th week of storage of control and it was the fastest sprouting potato among the control groups of the varieties. Sprouting began to appear in the Superior at the 6th week of storage, while the ‘Atlantic’ sprouted at the 8th week of storage. The appearance of sprouts was suppressed in all treatment groups of ‘Atlantic’ and ‘Superior’ varieties in CIPC treatments. Sprouts were observed in all treatment groups of ‘Chubaek’ after the 7th week, but the elongations of the sprouts in tubers were completely inhibited until the 8th week of storage. ‘Atlantic’ and ‘Superior’ seemed to have a sprouting inhibitory effect even with a low CIPC concentration of 10 mg·kg-1, with the exception of extremely early variety ‘Chubaek’ that breaks out of the dormancy quickly. Although weight loss occurred continuously during storage, it was minor loss of 0.7-1.6%. There was no consistent trend for changes of the loss in the varieties and CIPC treatments. Most common pathological disorder was the dry rot during the experiment, but only few were affected. The use of the tubers treated at 18°C and 90% RH for 10 days and the rack of refrigeration system which lead to lack of convection seemed to have suppressed the spread of pathogens.

A warehouse is more than just a place to store goods but also creates a time utility gap between production and consumption that is important in the development of trade and commerce. Malaysia has a high aspiration to be the most popular gateway in Asia. However, Malaysia Productivity Corporation has claimed that particularly in efficiency and productivity aspects, the warehouse industry is less incline to innovate and make improvement to increase. There are ten failure factors that had been identified during literature survey affecting to the warehouse operations efficiency. Therefore, this study intends to analyse and select the main failure factors that mostly affecting the warehouse operations efficiency. A Fuzzy Analytic Hierarchy Process (FAHP) technique has been used in this study to calculate the weight value of each variable through a pair-wise comparison method. The finding highlighted the four main failure factors which are ‘equipment’, ‘environment concern’, ‘special handling consideration’ and ‘human factor’ that influence directly to the warehouse operations efficiency. This paper has contributed to a new knowledge of complex warehouse operation area with recommendations action that shall be taken to manage the possible risk in future, which will also contribute to achieve the government goals.

Inventory inspection is an important task to eliminate the inconsistency between real assets and inventory management systems, and it is performed periodically at the site. In the case of a large-sized property, it is mainly managed in an outdoor workshop or a warehouse. However, due to the large area of the outdoor area, it is relatively difficult to identify the quantity and location of the property and is also vulnerable to theft. To solve this problem, we proposed a method and system for performing a warehouse inventory inspection using an unmanned aerial vehicle (UAV) and Bluetooth low energy (BLE) beacons. The proposed method has the following advantages. First of all, if we carry out inventory inspection by utilizing UAV, we can minimize user’s effort compared to existing methods. The method of recognizing the asset by attaching the BLE beacon is more costly than using the existing RFID technology, but it is advantageous because the recognition distance is increased and the battery life of the tag is drastically increased. We also designed a BLE beacon reader for the system and implemented a prototype to show the feasibility of the proposed system. The prototype is based on Genuino 101, which is a kind of arduino, and adds HM-10 and Neo-6m modules to provide Bluetooth and GPS functions. The BLE beacon reader was tested in outdoor, and attached in drone. We also developed an inventory checking system based on the web to display results of inventory checking. The proposed approach enables the users to automate the operation of inventory checking on an outdoor warehouse.

Companies are pursuing the management of small quantity batch production or JIT(Just-in-time) system for improving the delivery response and LOB(Line Balancing) in order to satisfy consumers’ increasing demands in the current global economic recession. And in order to improve the growth of production for reducing manufacturing cost, improvements of the Load Balancing have become an important reformation factor. Thus this paper is aimed at warehouse which procures materials on the assembly line in procurement logistics of automotive logistics and proceed with research on heuristic algorithm development which can increase the Load Balancing of workers. As a result of this study, when applied the primary target value, it was verified that the whole workers decreased from 28 to 24. Furthermore, when specified the secondary target value and applied algorithm once more, it was verified that the Load Balance Ratio was improved from 44.96% to 91.7%.

This treatise is a study on the effectiveness of logistics tasks through the Warehouse Management System. Using manufacturer 'D' company's logistics operation as an example, we compared before and after cases, in which WMS was used. Upon using WMS, we observed the processes and researched how much the logistics company’s performance was affected by the process changes influencing profits.

During the fierce competition among the companies, improvement of logistics center managing efficiency is importantly recognized. Among them, studies on improvement of picking work process on about 55% of logistics center managing costs are continuously conducted. And, most of studies focus on analysis on strengths and weaknesses of picking method performable on the stage of logistics center design, etc, so the purposes of this research are to define load location rule by product releasing frequency in logistics managing environment based on conveyer and suggest expected effects by simulation analyzing method to improve picking managing efficiency.

This paper suggests a specific model that could efficiently improve the interaction and the interface between WMS(Warehouse Management System) terminal and PDA terminal through real time processing in manufacturing shop. The proposed model shows that the new method can more efficiently perform to reduce processing time for shipping and receiving, compared with the current approach. As a result of the certain test among the main server, WMS system, and PDA terminal, it is noted in case of the new proposed system that the effects of proposed model are as follows: (a) While the receiving lead time for carrying by the current method was 2 hours, the receiving lead time by the new method was 20 minutes. (b) While the shipping lead time for carrying by the current method was 1 hours, the shipping lead time by the new method was 15 minutes. (c) While the inventory rate of accuracy by the current method was 85%, the inventory rate of accuracy by the new method was 98%.

This paper is to analyze the picking lead time for picking batch size in a warehouse system and to get minimum picking batch size that is the warehouse system feasible. The warehouse system consists of aisles and racks, which two racks face each other through aisle. The products are picked from the storage locations by batch size. The probability that items are picked in the each row of the rack in the aisle for order picking activity is derived. The picking lead time for picking batch size is the time passed from the first picking location to arrival at starting location in aisle picking all items included in a batch size. The picking lead time for picking batch size in an aisle is analyzed. The picking lead time for picking batch size in the whole warehouse system is obtained. The warehouse system is feasible if all items that customers order are picked from the storage locations for same period. The picking batch size that is the warehouse system feasible is obtained. The problem is analyzed, a solution procedure is developed, and a numerical example is shown to explain the problem.

The camera embedded wall climbing robot in this paper combines the suction and aerodynamic attraction to achieve good balance between strong adhesion force and high mobility and adopts embedded image processing technique to detect targets on the warehouse inspection. Experimental results showed that the robot can move upward on the wall at the speed of 2.9m/min and carry 5kg payload in addition to 2.5kg self-weight, which record the highest payload capacity among climbing robots of similar size. With two 11.1V lithium-polymer battery, the robot can operate continuously for half hours. A wireless camera system, zigbee protocol module and several sensors was adopted for detecting target objects and dangerous situation on the warehouse wall and for sending alarm signals to remote sensor node or manager.

본 연구의 목적은 노인복지관의 운영 및 무용프로그램·서비스의 질적 향상을 도모하여, 앞으 로 노인복지관이 고령사회 노인들의 삶의 질을 향상시킬 수 있도록 바람직한 역할과 기능을 재 정립 시키는 데 있다. 이러한 목적을 수행하기 위해 노인복지관 관계자 인터뷰를 실시하였으며, 다음과 같은 결론을 얻었다. 첫째, 복지관의 회원모집, 프로그램 계획, 강사모집에 있어서 4개의 복지관은 거의 같은 방식 으로 운영되고 있었다. 둘째, 노인복지에 있어 예산상의 어려움이 문제점으로 제기 되었으며, 정부의 지원이 많이 부족함을 알 수 있었다. 셋째, 현재 운용되고 있는 노인 무용프로그램은 중 복되거나 비슷한 양상을 보이고 있었다. 넷째, 한국무용프로그램의 문제점에 대해서는 대부분의 복지관에서 전문적이다, 어렵다라는 인식이 문제점으로 지적되었다. 이와 같은 결과는 노인복지관의 재정적인 문제 해결과 한국무용의 인식 변화가 이루어져야 함을 시사하며, 이를 해결하기 위해 다음과 같이 제언한다. 첫째, 노인복지의 발전을 위해 정부 의 적극적인 지원이 필요하다. 둘째, 남성노인들의 무용관련프로그램 참여를 위해 무용이 여성 만 하는 것이 아니라는 사실을 시청각 자료를 활용해 홍보 할 필요가 있으며, 남성노인들이 배 울 수 있는 무용프로그램 개발에도 힘써야 할 것이다. 셋째, 한국무용은 어렵다는 인식을 바꾸 기 위해서 시니어 공연단을 모집하여 활동할 것을 제안한다. 전문무용수의 공연은 어렵다는 인 식을 갖게 하므로 시니어 공연단의 활동모습을 쉽게 접하게 한다면 인식변화에 도움이 될 것이 라 사료된다. 이와 같은 사항들이 수용되어진다면 노인복지에 있어 보다 질 높은 교육과 더불어 한국무용 의 인식변화로 인한 대중화가 활발히 진행 될 것으로 사료된다.

The distribution cost increases constantly because of the growth of yield, globalization of accounts and the generalization of e-commerce. This paper is concerned with scheduling on the allocation of workers to maximize the amount of order process in warehouse logistics system. The problem is to determine the number of operators in each process by the sequential time zone. We considered that the number of operators is restricted to the current level and also the process time is changed by putting some resources into the process. In each stage, we suggest some considerations for the allocation of workers and estimate the maximum amount of order process of the alternatives. We analyzed the alternatives using simulation s/w Arena with real cases.

This paper deals with a centralized warehouse problem with multi-item and capacity constraint. The objective of this paper is to decide the number and location of centralized warehouses and determineorder quantity (Q), reorder point (r) of each centralized warehouse to minimize holding, setup, penalty, and transportation costs. Each centralized warehouse uses continuous review in- ventory policy and its budget is limited. A SA (Simulated Annealing) approach is developed and its performance is tested by using some computational experiments.

Inventory centralization for a number of stores may reduce inventory costs by establishing and maintaining a central ordering and distribution point. In this study, a centralized warehouse problem with multi-item and capacity constraint is considered. The objective of this study is to develop a methodology to decide the number and location of centralized warehouses and determine order quantity(Q), reorder point(r) of each centralized warehouse to minimize holding, setup, penalty, and transportation costs. In this problem, each centralized warehouse uses continuous review inventory policy and its budget is limited. A SA(Simulated Annealing) approach for this problem is developed.

This research is to analyze the modern warehouses in Gunsan during the Japanese Colonial Period. They were the spatial and urban symbol of City of Rice, Gunsan. The main purpose of this study is to survey the modern warehouses in the original center of city, to find their architectural characteristics and to set up a possibility of reuse. 7 existing warehouse buildings are located at Jangmi-Dong and Jooksung-Dong, and they have been built between 1935 and 1940. The warehouse buildings have a module of 6m and they are generally 12m wide, 24∼48m long and 8m high. Their structure is composed of reinforced concrete and wooden truss. All warehouse buildings have a rectangular form. Now the diverse commercial programs occupy the original space. Modern warehouse in Gunsan has the spatial and symbolic value as industrial heritage. Therefore, it is necessary to respect the original value of modern warehouse and to create a reusing space for the current generation. It is also essential to verify restoring possibility of three symbolic warehouse buildings in the harbour that were demolished.

This paper addresses the analysis of the travel distance and order picking time of the vehicle in a aisle when items are picked by the batch in a warehouse system. Batching is to combine several orders in a single tour of the storage/retrieval machine. An

Controlling industrial vehicle operated by human in warehouse was not simple since the information transfer for controlling the vehicle was not easy. However, as the technology for the WMS (Warehouse Management System) has been advanced and the PDA (Perso

Controlling industrial vehicle operated by human in warehouse was not simple since the information transfer for controlling the vehicle was not easy. However, as the technology for the WMS(Warehouse Management System) has been advanced and the PDA(Personal Digital Assistant) has come into wide use in a workplace, the control of man-operated vehicle became less difficult as do to AGVS(Automated Guided Vehicle System). This study examines the ways to improve the efficiency of warehouse operation through introducing rule of task assignment for the vehicles, particularly forklift. This study, basically, refer to AGV operation policy because a great number of studies for AGV dispatching rule have been done and the mechanism for the controlling vehicles is very similar. The workers in field prefer to simple dispatching rules such as Shortest Retrieval Time First(SRTF), Shortest Travel Time First(STTF), and Longest Waiting Load First(LWLF). However, these rules have potential disadvantage. Thus, several rules made up by combining rules mentioned above are introduced and these new rules use threshold value or evaluation formula. The effectiveness of these new rules are tested by simulation and the results are compared. This study proposes favorable dispatching rules for forklift in warehouse for the efficiency of the vehicle operation and stability of service level.

In this research, it is studied whether an abandoned tunnel can be used for a warehouse to keep rice. Today's agricultural industry especially rice farming in our nation is put in the bad condition such as not sufficient man power, not enough capital and so on, and moreover dose not have competitive power as well-known against products from other nations through FTA. But there are many ways to increase competitive power we can guess. Development of technique to keep quality of the agricultural product by controlled atmosphere is one of the reasonable ways. From these backgrounds, it has been studied whether an abandoned tunnel is suitable for rice as storage place or not. In the result, the inner condition of the abandoned tunnel was measured that temperature is 15℃ in average and relative humidity is 55% in average and it is therefore found that to use an abandoned tunnel as a place to storage rice is reasonable in the consideration of thermal and cost-saving aspect.