BTC warehouse

2. On the delivery date of stock index futures, generally speaking, there will be a delivery date effect, or maturity date effect, delivery date curse and so on

the so-called & quot; The curse of delivery day;, That is to say, on the settlement day of stock index futures, the trading volume and volatility of futures and spot will increase significantly. The reason is that stock index futures use cash delivery, arbitrage trading and position shifting trading will occur on the same day, resulting in fluctuations in the spot market. The most obvious performance is the sharp drop in the spot market

delivery: the transfer of spot goods between the seller of futures contract and the buyer of futures contract. All exchanges have specific proceres for the delivery of spot commodities. Some futures contracts, such as stock index contracts, are settled in cash

delivery date: - the date on which the parties agree to exchange money. According to the rules of the Chicago Board of trade, the delivery date is the third day in the delivery process. The contract buyer's clearing company must deliver the delivery notice together with a full amount certified check to the office of the contract seller's Clearing Company on the delivery date. Delivery in futures means that when your futures contract is e, you need to make physical delivery. That is, when the futures contract is e, the seller should perform his ties according to the law stipulated in the contract, and the buyer should pay for the goods in full. Generally used for legal person

The Curse of delivery date is the "maturity effect", which is common in overseas markets. In mature markets, the "triple witch effect" often occurs, that is, when stock index futures and options mature, some trading phenomena that are different from usual occur. Relevant studies found that: in the last hour of the simultaneous maturity of all index derivatives contracts, there will be an abnormally large trading volume and small stock price volatility. In the last half hour before the closing of maturity, the trading activity of S & P500 stock decreased significantly, and increased significantly in the opening stage of maturity. It is worth mentioning that before the official launch of stock index futures in China, Singapore launched Xinhua FTSE A50 stock index futures. Even if it was as far away as Wanli, the delivery date of A50 futures still had an impact on a shares. Among them, in the last round of bull market, several deep-seated falls of investors, such as "2.27", "5.30" and "6.27", were related to the maturity and delivery of Singapore FTSE A50 Index futures contract to a certain extent. A50 is highly correlated with the Shanghai Stock Exchange 50 index. The impact of its delivery date on a shares has won it the nickname of "A50 curse"

3. Then you lose blood. Needless to say, the maintenance of the mining machine is useless, and you can't get back the electricity bill! And this is bitdog, not bitcoin,

4. At the okex exchange, how does Malan BTC mention that in mobile wallet, such digital currency as bitcoin generally has a warehouse with fixed storage?

5.

In the past 24 hours, more than 110000 people in bitcoin have burst their positions, and 5.8 billion funds have been swallowed. In fact, I think the team is cutting leeks. In fact, the decline of bitcoin can be met in advance, and nothing can prosper all the time, So for most people, they still need to maintain a rational attitude to buy some funds or stocks and bonds. If it becomes a state of large-scale loss, then their money will be tied up, which is certainly not very good for them. Our attitude towards bitcoin is that it will not decline, it will only rise, So most people may not consider this situation and put all their money into it, but in such a situation, if the institutions withdraw their funds, they will inevitably face a lot of capital losses of retail investors

however, in the face of such a situation, we must understand that not all such things can have an answer, such as this kind of irregular things. As an ordinary investor, if we want to buy opportunistically, we may have to bear a greater risk, but in the face of the relative institutional investment, They may take less risk, because the risk they need to take is actually created by them. For most institutions, if they want to go up in the last stock, the probability of the stock's rise may be much greater than the probability of its decline. As for bitcoin, more than 110000 people burst their positions in the past 24 hours and 5.8 billion funds were swallowed, losing money in succession, in fact, I think the team is cutting leeks

6. To be honest, I don't know

7. 16 rusty copper vaults at a time need 60 rolls to expand the warehouse to 24 spaces after purchasing. Silver vaults need 120 rolls to expand the warehouse to 40 spaces after purchasing. Exquisite silver vaults need 240 rolls to expand the warehouse to 56 spaces after purchasing. Gold vaults need 480 rolls to expand the warehouse to 72 spaces after purchasing 960 points are needed to expand the space to 88 grids. It takes 1600 points to directly expand the warehouse to 104 grids after purchasing the gorgeous gold vault. It takes 3200 points to directly expand the warehouse to 120 grids after purchasing the solid diamond vault

8. My recommended method is combined zone picking and bulk picking and sort. Generally, all SKUs are divided into several categories according to large categories. The goods of each category are stored in a specific area, and a specific person is designated to be responsible for the picking work in this area. Secondly, a conveyor belt is set at the end of different types of storage area to send the picked goods to the sorting table through the conveyor belt. Third, divide the working time of each shift into several order sorting batches, or divide the picking batches according to a certain number of orders. For example, you can define an hour as a sorting batch. The specific operation is that the system summarizes the orders received in this hour by category and SKU to form a summarized picking list, The picking personnel of specific categories in each area pick out the required goods according to the summarized picking list, and put them on the conveyor belt. There is a conveyor belt to the sorting table. There is a pigeon cage shelf at the sorting table, which is a shelf composed of many small grids, similar to the wooden grid in the post office. The secondary sorter selects the goods according to the summary of each category, and allocates the goods to a shelf cell represented by each order according to the quantity of the original order. This sorting work is also a process of rechecking the quantity of the first picking. After the completion of the secondary sorting, there are packing personnel to pack the goods in each shelf cell

this method has several advantages,

1. A fixed picking person is assigned by category. Because this person works in the same area for a long time and knows the goods very well, it is easy to find the corresponding location for picking goods. His picking distance is also reced from the walking of the whole warehouse to the walking of specific areas, greatly recing the walking range of the warehouse

2. Picking by batch greatly reces the frequency of picking. Since the quantity of each order is small and there are many SKUs, even if the quantity of each SKU is summed up, it will not cause inconvenience in picking

3. For secondary sorting, e to the small size of the pigeon cage shelf and the limited floor space occupied, the sorter needs to walk in a small area ring the secondary sorting. Although the frequency of walking is very high, they all walk in a small area, and the total walking distance becomes smaller. This also reces the area required for sorting

in the actual use process, there is a place to pay attention to, that is, how to reasonably divide batches. If the batches are too large, the workload of secondary sorting will be large, and the required space and possible errors will also increase. If the batch size is too small, the frequency of moving will be increased, and the efficiency of picking will be reced. So in the actual work, we need to constantly explore and find a suitable batch of work.

9. The mode is not the same. Taobao's pure BTC means that businesses directly face customers and Jingdong's two-way cooperation